CN108836595A - Chair capable of preventing spinal curvature - Google Patents

Abstract

The invention relates to an anti-spine bending chair, which effectively solves the problems that the current anti-spine bending chairs cannot prevent scoliosis, the prevention effect is poor, and there is no massage function; the technical solution includes the main body of the chair, which is characterized in that , the main body slides up and down and is connected with an anti-bending device, and the main body slides forward and backward and is connected with an anti-hunchback device; the anti-side bending device includes two vertical plates, and the two vertical plates are connected with the first driving motor, and the The anti-hunchback device includes a semicircle guide rail, on which two arc buckles are connected, and the two arc buckles are connected to the second drive motor; the present invention replaces the flexible strap with a rigid front and back adjustable arc buckle, It can be adjusted while enhancing the correction effect. An anti-side bending device is added to prevent the scoliosis caused by the user's body tilting sideways for a long time. A waist and back massage device is also added to massage the sedentary users to prevent muscle fatigue for a long time induced other symptoms.

Description

A chair for preventing spinal curvature

technical field

The invention relates to the technical field of spine prevention equipment, in particular to a chair for preventing spine curvature.

Background technique

97% of the middle-aged and elderly people in my country suffer from spinal diseases. In recent years, there has been a trend of younger people. Among the people under the age of 40, more than 40% of them have various diseases in the spine. The incidence of scoliosis in children Up to 25% or more. Spinal diseases in China are not only widely spread among middle-aged and elderly people, but also gradually spread to teenagers and children. More and more people are admitted to the hospital because of spinal diseases. Among them, scoliosis and other diseases of adolescents can be physically corrected by means of physical traction and bracket fixation. However, in the face of the increasing incidence of spondylopathy in adolescents, treatment alone is obviously not enough. More attention should be paid to the prevention of spondylopathy in adolescents, so as to fundamentally improve the current situation of increasing incidence of spondylopathy.

As a kind of popular furniture that can be seen everywhere, the back of the chair generally adopts a straight back form, and the seat surface is parallel to the ground. Although this straight-back chair is simple to make, it cannot keep the normal physiological curvature of the human body, and it is easy to cause bad sitting posture, which can cause diseases such as hunchback, round back or scoliosis, and will bring hidden dangers to the health of the cervical spine and lumbar spine. For teenagers, sitting on a straight-backed chair for a long time will cause fatigue, and they will naturally bow their waists or let their spine lean against the back of the chair with an unnatural curvature. Fatigue can also cause adverse consequences of straight back. Since the chair surface is parallel to the ground, the center of gravity of the person sitting on the chair surface is perpendicular to the ground, that is to say, the weight of the upper body is basically borne by the lumbar spine, which will bring great pressure to the lumbar spine. Stress, over time, will induce lumbar spondylosis.

In order to prevent teenagers from sitting for a long time and deform their sitting posture, there are corresponding chairs for preventing spinal curvature appearing on the market, but the existing chairs for preventing spinal curvature obviously have the following disadvantages:

1. Elastic ropes or elastic straps are often used to fix the user on the back of the chair. Although the elastic rope can adapt to users of different sizes, it is obviously less effective for thinner users;

2. Only fix the user on the back of the chair to prevent the user from bowing and prevent symptoms such as hunchback caused by the forward and backward curvature of the spine. Scoliosis and related diseases caused by long-term sideways tilt of the body;

3. Sitting on the seat for a long time, most of the weight of the upper body is concentrated on the lumbar spine, and the lumbar spine is prone to fatigue when it is stressed for a long time. Most of the existing spine bending prevention chairs do not have the function of massaging the lumbar spine.

Therefore, there is an urgent need for a spine bending prevention chair that can prevent scoliosis while preventing the spine from bending back and forth, and can properly massage the user to relieve fatigue.

Therefore, the present invention provides a new chair for preventing spinal curvature to solve this problem.

Contents of the invention

In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a chair for preventing scoliosis, which effectively solves the problem that the current chair for preventing scoliosis cannot prevent scoliosis, the prevention effect is poor, and it does not have the massage function. .

The present invention includes a chair main body, which is characterized in that the main body is slid up and down and connected with an anti-bending device, and the main body is slid forward and backward and connected with an anti-hunchback device;

The anti-side bending device includes two vertical plates slidingly connected to the main body, a vertical rack and a horizontal rack are fixedly connected to the two vertical plates, and the two vertical The rack and the two horizontal racks are connected to the first drive motor fixedly connected to the main body through the vertical plate transmission wheel set, so that the first drive motor can drive the two vertical plates to rise and move forward After rising to the top, it can slide left and right to clamp the user;

The anti-hunchback device includes a semicircular guide rail slidingly connected to the main body front and rear, two arc-shaped clasps are slidably connected to the semi-circle guide rail, and arc-shaped racks are fixedly connected to the two arc-shaped clasps. The buckle driven gears that are rotatably connected to the semicircular guide rail are meshed beside the two arc-shaped racks, and the two buckle driven gears are fixedly connected to the main body through the buckle drive wheel set The second driving motor on the upper body is connected, and the operation of the second driving motor can drive the two arc buckles to pass through the main body and fix the user on the main body.

Preferably, the main body includes a seat board, the rear end of the seat board is connected with a back board, the two sides of the seat board are fixedly connected with handrails, the rear end surface of the back board is fixedly connected with guide grooves, and the two semicircular guide rails Each guide key is fixedly connected with a guide key slidingly placed in the guide groove, and each guide key is fixedly connected with a fixed link through the guide groove, and the fixed link connects all the guide keys as a whole. The lower end of the connecting rod is fixedly connected with a guide rail drive rack that is slidably connected to the guide groove, and beside the guide rail drive rack, there is a guide rail drive gear that is rotatably connected to the guide groove, and the guide rail drive gear is coaxially fixed A guide rail drive pulley is connected, and the guide rail drive pulley is connected to the guide rail adjustment gear connected to the armrest by rotating the guide rail drive wheel set connected to the main body, so that the user can adjust the semicircular guide rail to slide forward and backward by turning the guide rail adjustment gear .

Preferably, the buckle transmission wheel set includes a buckle motor gear that is rotatably connected to the rear end surface of the backboard, and the buckle motor gear is connected to a second drive motor that is fixedly connected to the backboard, and the buckle motor gear There is a buckle drive gear rotatably connected to the rear end surface of the backboard, the buckle motor gear and the buckle drive gear are coaxially fixedly connected with a buckle drive pulley, and the two buckle driven gears Both are coaxially fixedly connected with buckle driven pulleys, and the two buckle driven pulleys are respectively connected with the two buckle drive pulleys through two sets of tensioning devices.

Preferably, the two sets of tensioning devices all include two tensioning links with one ends hinged together, and the other ends of the two tensioning links are respectively rotatably connected to the buckle driving pulley and the buckle driven pulley A tensioning pulley is rotatably connected to the joints of the two tensioning links, and the buckle driving pulley is connected to the buckle driven pulley by a belt bypassing the tensioning pulley.

Preferably, the vertical plate transmission wheel set includes two vertical drive gears that are rotatably connected to the bottom surface of the seat plate and can be respectively engaged with the two vertical racks, and two respectively can be engaged with the two horizontal racks. The meshing rotation is connected to the horizontal drive gear on the bottom surface of the seat. The two vertical drive gears are coaxially fixedly connected and connected to the first drive motor through a worm gear transmission. The two horizontal drive gears pass through Bevel gears, pulleys, and the worm gear are connected to the first drive motor, and the two vertical drive gears are coaxially rotatably connected with long gears that can mesh with the vertical racks. The long gear does not rotate with the two vertical drive gears, and the two long gears are coaxially fixedly connected with a positioning ratchet, and each of the positioning ratchets is equipped with a rotating joint connected to the bottom surface of the seat plate. The pawls are positioned so that the two vertical racks do not fall due to gravity when they slide onto the corresponding long gears.

Preferably, several massage blocks are slidingly connected front and back on the backboard, behind the massage blocks there is a driving disk connected to the backboard in rotation, and the driving disk is fixedly connected with several massage blocks. The bump in contact with the massage block, the drive disc is coaxially fixedly connected with a disc driven pulley, and the disc driven pulley is connected with the disc drive pulley rotatably connected to the backboard through a belt. The drive pulley links to each other with the third drive motor fixedly connected on the backrest board.

Preferably, the seat board is slidably connected with a pressure plate up and down, and the lower end of the pressure plate passes through the seat board and is slidably connected with a switch rod that is rotatably connected to the bottom surface of the seat board, and the other end of the switch rod is connected to the third The drive motor switches are in contact with each other, and the lower end of the pressing plate is fixedly connected with a return spring whose other end is fixedly connected on the bottom surface of the seat plate.

Preferably, the backrest board is rotatably connected to the rear end of the seat board, the front end of the seat board is rotatably connected to a leg support board, and the rotating shafts of the back board and the leg support board are coaxially fixedly connected to a rotating The swing driven pulley connected to one side of the seat board, the side of the seat board is rotatably connected with two swing drive pulleys respectively connected to the two swing driven pulley belts, and the two swing drive pulleys The belt pulleys are coaxially fixedly connected with a swing driven gear, and a swing drive gear rotatably connected to the side of the seat plate is meshed between the two swing driven gears, and the swing drive gear is coaxially fixedly connected with The locking ratchet is matched with a locking pawl which is rotatably connected to the seat plate beside the locking ratchet.

Preferably, the rotating shafts of the backrest board and the leg support board are both sleeved with circlips, and a handle is fixedly connected to the locking pawl, and the user can press the handle to return the back board and the leg support board to their original positions. .

Preferably, the front end of the leg support plate is slidably connected with a telescopic plate, the front end of the telescopic plate is rotatably connected with a foot clamp, and the telescopic plate is connected to a hydraulic cylinder through a hose, and the hydraulic cylinder can control the expansion and contraction of the telescopic plate.

The present invention improves the existing chairs for preventing spine bending, and replaces the flexible straps with rigid front and rear adjustable arc buckles, which enhances the correction effect and can be adjusted at the same time, and can adapt to people with different body types; additional anti-side The bending device prevents the scoliosis caused by the long-term sideways tilt of the user's body; a waist and back massage device is also added to massage the sedentary users to prevent the occurrence of other symptoms caused by long-term muscle fatigue.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the present invention.

Fig. 2 is a schematic front view of the present invention.

Fig. 3 is a schematic rear view of the present invention.

Fig. 4 is a perspective view II of the present invention.

Fig. 5 is a three-dimensional schematic view of the present invention in use.

Fig. 6 is a three-dimensional schematic diagram of the working principle of the anti-sidebending device of the present invention.

Fig. 7 is a schematic perspective view of the driving structure of the anti-sidebending device of the present invention.

Fig. 8 is a three-dimensional schematic diagram of the anti-hunchback device of the present invention.

Fig. 9 is a perspective schematic diagram of the present invention viewed from the right side.

Fig. 10 is a three-dimensional schematic view of the massage device of the present invention.

Fig. 11 is a three-dimensional schematic diagram of a massage block of the present invention.

Fig. 12 is a three-dimensional schematic view of the driving disc of the present invention.

Fig. 13 is a three-dimensional schematic diagram of the driving structure of the backrest board and the leg support board of the present invention.

Detailed ways

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings 1 to 13 . The structural contents mentioned in the following embodiments are all based on the accompanying drawings of the description.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Embodiment 1, a chair for preventing spinal curvature of the present invention includes a chair main body 1, the main body 1 is in the shape of a common chair, placed on the ground during specific use, and the user sits on it, and the main body 1 simultaneously provides for subsequent structures. The fixed foundation is characterized in that the main body 1 slides up and down and is connected with an anti-bending device 2, and the main body 1 slides forward and backward and is connected with an anti-hunchback device 3; the anti-side bending device 2 is aimed at the existing equipment in the background technology without anti-side bending The problem of capacity design prevents the user from sitting in an incorrect posture for a long time to cause scoliosis. The anti-hunchback device 3 aims at the problem of poor anti-spine front and rear complete effect of the existing equipment in the background technology, and prevents the user from leaning forward for a long time and causing the hunchback to occur. .

The anti-side bending device 2 includes two vertical boards 4 sliding up and down connected to the main body 1, and the rise of the two vertical boards 4 can restrict the user between the two vertical boards 4, preventing the user from Long-term left and right lateral deviation leads to scoliosis. A vertical rack 5 and a horizontal rack 6 are fixedly connected to the two vertical plates 4. Specifically, each of the vertical plates 4 is provided with a lower end Open slot, one side of the inner wall of the slot is fixedly connected with a vertical rack 5, and the two vertical racks 5 and the two horizontal racks 6 are fixedly connected to The first driving motor 8 on the main body 1 is connected, because the vertical racks 5 and the transverse racks 6 are fixedly connected to the two vertical plates 4, that is, the output ends of the drive wheel set 7 need to be able to and the required The gear that matches the vertical rack 5 and the horizontal rack 6, the transmission wheel set 7 is only used to change the output power of the first drive motor 8 and then output, and has no special function, and the vertical rack 5 , the transverse rack 6 are all standard parts, so those skilled in the art can easily achieve the required functions of the transmission wheel set 7 through the combination of common structures. A transmission structure is provided in this embodiment. Referring to FIG. The worm gear driven by the first driving motor 8 is used as the input end, the coaxial fixedly connected belt pulley on the worm screw is connected with the belt pulley rotatably connected to the lower end surface of the seat plate 15 through the belt, so as to drive the coaxially fixedly connected bevel gear, through the bevel gear Change direction drive transverse rack 6, also can adopt other change direction transmission structures to reach transmission purpose, make first driving motor 8 work can drive two described vertical boards 4 to rise and can slide left and right after rising to the top. Clamped by the user, the vertical plate 4 can slide left and right after rising to the top to adapt to users of different sizes, which improves the applicability of the device and further enhances the preventive effect;

The anti-hunchback device 3 includes a semicircular guide rail 9 slidably connected to the main body 1. Two arc clasps 10 are slidably connected to the semicircle guide rail 9. The two arc clasps 10 are used to The user is fixed on the main body 1, specifically on the backrest of the main body 1. The materials of the two arc buckles 10 are rigid materials. The inner walls of the two arc buckles 10 can be polished into arcs or fixed sliver, so To prevent long-term use from causing harm to the user, the two arc-shaped buckles 10 are fixedly connected with arc-shaped racks 11. What needs special attention here is that the width of the arc-shaped buckle 10 should be greater than that of the arc-shaped teeth. The width of the bar 11, that is, the inner wall of the arc buckle 10 should be located on the outer side of the upper teeth of the arc rack 11, so as to prevent the arc rack 11 from being exposed to the outside and causing harm to the user. The buckle driven gear 12 that is rotatably connected to the semicircular guide rail 9 is meshed beside the bar 11, and the buckle driven gear 12 should be installed in a position close to the backboard 16, so that the arc The buckle 10 can be interlocked after stretching out the backboard 16. If the position of the driven gear 12 of the buckle is located in the middle of the semicircular guide rail 9, the arc buckle 10 needs to be lengthened accordingly, which will lead to When not in use, the arc-shaped buckle 10 is partly exposed outside the backboard 16, which is easy to cause inconvenience to the user. The rotation of the buckle driven gear 12 can drive the arc-shaped buckle through the arc-shaped rack 11. 10 passes through the backrest of the main body 1 to fix the user on the main body 1, so as to prevent the user from sitting improperly. The second driving motor 14 is connected, so that the second driving motor 14 can drive the two arc buckles 10 through the main body 1 to buckle and fix the user on the main body 1. It should be noted that for protection The second driving motor 14 can be fixedly equipped with a contact sensor at both ends of one of the arc buckle 10 and integrates a control module therein, and the control module is connected with the second driving motor 14, and thus controls the second driving motor 14. The drive motor 14 stops working, and when the two arc buckles 10 are fastened, the contact sensor is triggered, and the second drive motor 14 stops working, preventing the second drive motor 14 from continuing to work after the two arc buckles 10 are buckled. The motor burns out or a certain link in the transmission process collapses. In this embodiment, the user sits on the main body 1 and controls the anti-side bending device 2 and the anti-hunchback by controlling the first drive motor 8 and the second drive motor 14. When the device 3 is working, the two vertical boards 4 are respectively raised from both sides of the user, and after rising to the top, they move toward the middle until they touch the user, and at the same time, the two arc-shaped clasps 10 pass through the main body 1 Fix the user sitting on the main body 1 on the backrest of the main body 1 to prevent it from leaning forward.

Embodiment 2. On the basis of Embodiment 1, the structure described in Embodiment 1 can only fix the user on the main body 1. In this embodiment, an adjustable anti-hunchback is provided for different body shapes of different users in actual use. Device 3, increasing the range of use of the device, specifically the main body 1 includes a seat board 15, the rear end of the seat board 15 is connected with a back board 16, and both sides of the seat board 15 are fixedly connected with handrails 17, and the seat Board 15, back board 16, armrest 17 are all identical with existing chair, and back board 16 can design appropriate radian and camber according to human body back radian, and described back board 16 rear end faces are fixedly connected with guide groove 18, two described The semicircle guide rail 9 is all fixedly connected with the guide key 19 that slides and places in the guide groove 18, and the guide groove 18 is used to play a guiding role for the front and rear sliding of the semicircle guide rail 9, which can be one or more. In the present invention, for ensuring the stability of the structure , three guide grooves 18 are provided for guiding the arc top and two ends of the semicircular guide rail 9 respectively, the semicircular guide rail 9 slides along the guide groove 18 by means of the guide key 19, and each guide key 19 is fixedly connected through the guide groove 18 There is a fixed link 20, and the fixed link 20 connects all the guide keys 19 as a whole, that is, a plurality of guide keys 19 on the two semicircular guide rails 9 are all connected with the same fixed link 20, that is, the fixed link The sliding of the bar 20 can drive the sliding of the two semicircular guide rails 9 at the same time. Referring to FIG. During the moving process of the semicircular guide rail 9, there is no relative movement between the plurality of connecting rods forming the fixed connecting rod 20, so the fixed connecting rod 20 composed of a plurality of connecting rods can be regarded as a whole, or one can be used to control all the connecting rods. The special-shaped connecting rod connected to the guide key 19 is used as the fixed connecting rod 20. The reason why the special-shaped connecting rod is not used in this embodiment is that the special-shaped connecting rod is not convenient for maintenance and replacement. The lower end of the fixed connecting rod 20 is fixedly connected with a sliding connection. The guide rail drive rack 21 on the guide groove 18, the guide rail drive gear 22 that is rotatably connected to the guide groove 18 is meshed beside the guide rail drive rack 21, and the guide rail drive gear 22 is coaxially fixedly connected with The guide rail drive pulley 23, the guide rail drive pulley 23 is connected with the guide rail adjustment gear 25 rotatably connected to the guide rail adjustment gear 25 connected to the armrest 17 by rotating the guide rail drive wheel set 24 connected on the main body 1, so that the user can toggle the guide rail adjustment gear 25 Adjust the semicircular guide rail 9 to slide back and forth. The guide rail drive wheel set 24 is only used to change the direction of the driving force of the guide rail adjustment gear 25 and transmit it to the guide rail drive gear 22 without other special functions. Those skilled in the art can realize the functions as required And prior art is easy to reach the purpose of transmission, for example realizes by pulley set etc., so the specific structure of guide rail drive pulley set 24 is not described in detail, adopts a coaxially fixedly connected pulley, and guide rail adjustment gear 25 in the present invention The coaxial fixedly connected pulley and belt complete the effect of transmitting the driving force of the guide rail adjustment gear 25 to the guide rail drive gear 22, and other transmission structures can also be used to achieve this effect. On the seat board 15 and control the fastening of the two arc-shaped buckles 10 in the anti-hunchback device 3 so as to fix the user on the back board 16, the two arc-shaped buckles 10 pass through the back board 16 and are fastened on the back board 16 The front, at this time, is the fattest body type that the anti-hunchback device 3 can allow, and then the guide rail adjustment gear 25 is moved, and the two semicircular guide rails 9 slide backward along the guide groove 18, and the two arc buckles 10 The distance between the arc top of the formed arc and the backboard 16 gradually approaches, so that thinner users are gradually fastened to the backboard 16. It should be noted that in actual use, if the user is not easy to move the guide rail Adjust gear 25, then can be coaxially fixedly connected rocking handle at guide rail adjustment gear 25 one side, so that the user uses.

Embodiment 3, on the basis of Embodiment 1, the buckle transmission wheel set 13 described in Embodiment 1 transmits the power of the second drive motor 14 fixedly connected to the main body 1 to the arc buckle 10 and drives the arc buckle. The buckle 10 slides in the semicircle guide rail 9, but the semicircle guide rail 9 in the second embodiment can slide back and forth to adapt to users of different body types, that is, the position of the output end is uncertain, and the transmission structure of the transmission is difficult to achieve this effect, so the present embodiment provides A transmission structure that can move with the semicircular guide rail 9 to meet the needs. Specifically, the buckle drive wheel set 13 includes a buckle motor gear 26 that is rotatably connected to the rear end surface of the backboard, and the buckle motor gear 26 is connected to a fixed The second driving motor 14 that is connected on the backboard 16 is connected, and promptly described clasp motor gear 26 is the input end of clasp drive wheel group 13, and its position is fixed, and only rotates and does not slide, and described clasp motor gear 26 Engage with the buckle drive gear 27 that is rotatably connected to the rear end surface of the backboard 16, the buckle motor gear 26 and the buckle drive gear 27 are all coaxially fixedly connected with the buckle drive pulley 28, and the two buckles The ring driven gear 12 is coaxially fixedly connected with a buckle driven pulley 29, and the two buckle driven pulleys 29 are connected to the two buckle drive pulleys 28 through two groups of tensioning devices 30 respectively. The buckle driving pulley 28, the buckle driven pulley 29 and the tensioning device 30 are connected by a belt, that is, the buckle driving pulley composed of the buckle driving pulley 28, the buckle driving pulley 29 and the tensioning device 30, and the belt Group 13 enables the power input by the buckle motor gear 26 to be stably input to the buckle driven gear 12 on both sides during the forward and backward sliding process of the semicircular guide rail 9. It should be noted that the tensioning device 30 can be The semicircular guide rail 9 drives the buckle driven pulley 29 to self-adjust in the process of moving and keeps the belt in a tensioned state to ensure that the power of the buckle driving pulley 28 can be smoothly and efficiently transmitted to the buckle driven pulley 29.

Embodiment 4, on the basis of Embodiment 3, the tensioning device 30 described in Embodiment 3 needs to be able to self-adjust with the front and rear sliding of the semicircular guide rail 9, so that the buckle driving pulley 28 and the buckle driven pulley 29, The belt between the tensioning devices 30 is always tensioned. In this embodiment, a relatively simple and stable structure is provided to realize this function. The specific two groups of the tensioning devices 30 include two belts with one ends hinged together. Tensioning link 31, the other ends of the two said tensioning links 31 are respectively rotatably connected to the buckle drive pulley 28 and the buckle driven pulley 29, and the hinges of the two said tensioning links 31 are rotatably connected with a tension Tighten the pulley 32, the buckle drive pulley 28 is connected with the buckle driven pulley 29 by belt bypassing the tension pulley 32, when the semicircular guide rail 9 drives the buckle driven pulley 29 to slide, the tension connection between the two mutually hinged Under the action of the rod 31, the tension pulley 32 moves accordingly, so that the distance between the buckle drive pulley 28, the buckle driven pulley 29, and the tension pulley 32 is always equal, and the belt is always in a tensioned state. The operation of the tensioning pulley 32 is stable, and a chute fixed on the rear end surface of the backboard 16 can be added according to the sliding track of the tensioning pulley 32, and the pulley shaft of the tensioning pulley 32 is placed in the chute, so as to ensure the tensioning of the connecting rod. The tension pulley 32 in the 31 swing process can work stably.

Embodiment 5, on the basis of Embodiment 2, the vertical plate drive wheel set 7 described in Embodiment 1 needs to simultaneously realize the vertical lifting and lateral left and right sliding of the vertical plate 4. Most of the existing technologies can realize its requirements, but the structure is relatively Complicated or require electric control, in this embodiment, a purely mechanical structure is provided for the characteristics of the device to complete the required, and the specific vertical plate transmission wheel set 7 includes two vertical racks that can be connected with two vertical racks respectively. 5 meshing rotation is connected to the vertical drive gear 33 on the bottom surface of the seat plate 15 and two horizontal drive gears 34 that can be meshed with the two horizontal racks 6 and are connected to the bottom surface of the seat plate 15. During specific use, the two A vertical drive gear 33 drives the vertical plate 4 to rise through the vertical rack 5. When the two vertical drive gears 33 rotate, the two horizontal drive gears 34 rotate synchronously. When the vertical plate 4 rises to the two described horizontal The rack 6 and the two horizontal drive gears 34 are meshed, that is, the vertical plate 4 rises to the top, and at this time, the two vertical plates 4 move to the middle of the seat plate 15 under the action of the horizontal rack 6 and the horizontal drive gear 34 Until it touches the user, in order to ensure that the two vertical plates 4 can stop in time after touching the user in lateral movement, a pressure sensor can be fixedly installed on the inner wall of the two vertical plates 4, and a control module can be integrated in the pressure sensor , the control module is connected to the first drive motor 8, that is, when the pressure sensor is triggered, the first drive motor 8 stops working, the two vertical plates 4 no longer move, and the two vertical drive gears 33 are coaxially fixedly connected and passed through The worm gear transmission is connected with the first drive motor 8, and the two lateral drive gears 34 are connected with the worm gear and the first drive motor 8 through bevel gears, pulleys, and this is the first drive motor 8 The transmission structure that drives two described vertical drive gears 33 and two described horizontal drive gears 34 can also be replaced by other common structures, and two described vertical drive gears 33 are all coaxially rotatably connected with The long gear 35 meshing with the vertical rack 5, the two long gears 35 do not rotate with the two vertical driving gears 33, that is, the long gear 35 can be vacantly sleeved between the two vertical drive gears through bearings. On the shaft between the drive gears 33, the two long gears 35 are all coaxially fixedly connected with a positioning ratchet 36, and each of the positioning ratchets 36 is equipped with a positioning wheel that is rotatably connected to the bottom surface of the seat plate 15. The pawl 37, that is, the long gear 35 can only rotate in one direction under the action of the positioning ratchet 36 and the positioning pawl 37, so that when the two vertical racks 5 slide onto the corresponding long gear 35 Will not fall due to gravity, the long gear 35, positioning ratchet 36 and positioning pawl 37 in this embodiment only play a positioning role to prevent the riser 4 from falling after breaking away from the vertical drive gear 33, and other structures such as Fix the chute on the lower end surface of the seat plate 15 and fix other structures such as sliding keys on the riser 4 .

Embodiment 6. On the basis of Embodiment 2, this embodiment aims at the problem that the existing devices described in the background technology do not have massage capabilities. In this embodiment, a waist and back massage structure is provided. Specifically, the Backrest board 16 is slidingly connected with some massage blocks 38 front and back, and described friction block 38 is received in backrest board 16 rear portion when not in use normally, and friction block 38 front end faces and backrest board 16 front end faces are flush, in case friction block 38 Protrusion or indentation will cause discomfort to the user. Behind the massage block 38, there is a drive disc 39 that is rotatably connected to the backboard 16. The drive disc 39 is fixedly connected with a plurality of massaging blocks. 38 contacts the bump 40, the drive disk 39 rotates to drive the bump 40 to rotate and push out several massage blocks 38 in turn. In order to ensure that the massage block 38 can return to its original position after being pushed out, the massage block 38 and the backrest board 16 are fixedly connected with springs for resetting, and the drive disk 39 is coaxially fixedly connected with a disk driven pulley 41, and the disk driven pulley 41 is driven by a belt and a disk connected to the backboard 16 in rotation. Belt pulley 42 links to each other, and described disk driving pulley 42 links to each other with the 3rd driving motor 43 that is fixedly connected on the backboard 16, promptly passes the power of the 3rd driving motor 43 by disk driving pulley 42, disk driven pulley 41 and belt. Passed to the driving disc 39, the third driving motor 43 can control the driving disc 39 and then control the expansion and contraction of the massage block 38.

Embodiment 7. On the basis of Embodiment 6, this embodiment provides a mechanical automatic trigger device for massage with massage block 38. Specifically, the seat plate 15 slides up and down and is connected with a pressure plate 44. The lower end of the pressure plate 44 A switch rod 45 that is rotatably connected to the bottom surface of the seat board 15 is slidably connected through the seat board 15. The other end of the switch rod 45 is in contact with the switch of the third drive motor 43, and the lower end of the pressure plate 44 is fixedly connected to the bottom surface of the seat board 15. The other end is fixedly connected to the return spring 46 on the bottom surface of the seat 15. During specific use, after the user sits on the seat 15, he presses down the pressing plate 44, and the pressing plate 44 presses the switch lever 45 and thus activates the third The driving motor 43, the third driving motor 43 works to drive the driving disc 39 to work so as to drive the massage block 38 to stretch and massage. When the user gets up, the pressure plate 44 is lifted back to its original position by the action of the return spring 46, and the third driving motor 43 stops Work, the massaging block 38 acts on the backrest board 16 after the spring action.

Embodiment 8, on the basis of Embodiment 2, the back board 16 is rotatably connected to the rear end of the seat board 15, the front end of the seat board 15 is rotatably connected to a leg support board 47, and the back board 16 is 16 and the rotating shafts of the leg support plate 47 are all coaxially fixedly connected with a swing driven pulley 48 that is rotatably connected to one side of the seat 15, and the side of the seat 15 is rotatably connected with two respectively and two described The swing driven pulley 48 is belt-connected swing drive pulley 49, the two swing drive pulleys 49 are coaxially fixedly connected with a swing driven gear 50, and a rotating drive gear 50 is meshed between the two swing driven pulleys 50. The swing drive gear 51 connected to the side of the seat plate 15, the swing drive gear 51 is coaxially fixedly connected with a locking ratchet 52, and the locking ratchet 52 is matched with a rotation connection on the seat plate 15 If the user needs to lie down and have a rest or needs to adjust the backrest backwards, he only needs to push away the locking pawl 53 and lean back, and put down the locking pawl 53 after adjusting to the desired position. Yes, when the backrest board 16 swings backward, the leg support plate 47 swings upward synchronously, because the two swing driven pulleys 48, the swing drive pulley 49, and the swing driven gear 50 are all identical. Parts, so the leg support board 47 and the back board 16 all swing at the same angle, and the setting of the ratchet pawl is used to block the back board 16, so as to prevent the back board 16 from being unstable without adjustment or after adjustment, and cannot be used Or stable support, after the use of the device is completed, only need to remove the locking pawl 53 again and press the leg support plate 47 down, the leg support plate 47 and the backrest plate 16 can be pressed back to the original position, special attention should be paid More importantly, because the backboard 16 can swing, the third drive motor 43 should be fixedly installed on the rear end surface of the backboard 16 and should not be installed under the seat board 15. At the same time, the switch rod 45 should pass through The backboard 16 is connected to the third drive motor 43 to control the operation of the third drive motor 43 .

Embodiment 9, on the basis of Embodiment 8, in order to facilitate the opening of the locking pawl 53 in Embodiment 8, this embodiment improves on this to make the present invention easier to use. The backrest board 16 and leg support board The rotating shafts of 47 are equipped with snap springs, and the locking pawl 53 is fixedly connected with a handle 54. In this embodiment, the user only needs to press the handle 54 to make the backrest 16 and the leg support The plate 47 returns to its original position. Specifically, when the user presses the handle 54 after use, the locking pawl 53 is pushed aside, and the leg support plate 47 and the backrest plate 16 return to their original positions simultaneously under the action of the two return coil springs. bit.

Embodiment 10, on the basis of Embodiment 8, the setting of this embodiment provides a new way of using the invention, that is, the user is prone to muscle fatigue of the lower back after sitting on the device for a long time. The setting enables the user to lie down and rest after fatigue. Compared with the hem of the backboard 16 in the eighth embodiment, the backrests of common chairs are all lower, and are mostly located under the back shoulder blades, so if the backboard 16 is laid flat, the The user's head will be in a suspended state, which will bring uncomfortable user experience to the user, so this embodiment is improved for this. Specifically, the front end of the leg support plate 47 is slid forward and backward and connected with a telescopic plate 55, so The front end of the telescopic plate 55 is rotatably connected with a foot clip 56. The telescopic plate 55 communicates with the hydraulic cylinder through a hose, and the hydraulic cylinder can control the expansion and contraction of the telescopic plate 55. When using this embodiment, if the user needs to lie down To take a rest, you need to put your feet under the foot clamp 56 first, then press the handle 54 to press down on the backrest 16 to lie flat, and at the same time control the hydraulic cylinder to pressurize, and the telescopic plate 55 will stretch out to drag the user forward , that is, when the backboard 16 is laid flat, the user's whole body is lying on the device, and the massage device of the device is now at the user's back position, which can massage and relieve the fatigue of the user's back.

During specific use, the user sits on the seat board 15 with his back leaning against the back board 16. Due to the use of the locking ratchet 52 and the locking pawl 53, even if the user presses the back board 16 hard, it will not make the The backrest board 16 swings downward. After the user sits on the seat board 15, he will press down the pressure plate 44, and the pressure plate 44 will press the switch lever 45 to start the third drive motor 43, and the third drive motor 43 will work to drive the disk 39 works to drive the massage block 38 to stretch and massage;

At this time, the user only needs to control the first driving motor 8 and the second driving motor 14 to work, and the anti-side bending device 2 and the anti-hunchback device 3 will start simultaneously. Specifically, when the anti-side bending device 2 is working, the first driving The work of motor 8 drives two vertical drive gears 33 and two horizontal drive gears 34 to work. The two vertical drive gears 33 drive the vertical plate 4 to rise through the vertical rack 5. When the vertical plate 4 rises to the two The horizontal rack 6 and the two described horizontal drive gears 34 are meshed, that is, the vertical plate 4 rises to the top, and at this time, the two vertical plates 4 move towards the seat plate 15 under the action of the horizontal rack 6 and the horizontal drive gear 34. The middle part moves until it touches the user. Pressure sensors are fixedly installed on the inner walls of the two vertical plates 4, and a control module is integrated in the pressure sensor. The control module is connected to the first drive motor 8, that is, when the pressure sensor triggers, The first driving motor 8 stops working, the two vertical plates 4 no longer move, and the anti-sidebending device 2 starts to complete;

Simultaneously, the second driving motor 14 drives the buckle motor gear 26 to work, and drives the two described belts through the transmission of the buckle drive gear 27, the buckle drive pulley 28, the buckle driven pulley 29, the tensioner 30 and the belt. The arc buckle 10 passes through the backrest board 16 to fix the user on the backrest board 16. After the two arc buckle rings 10 are fastened together, the contact sensor is triggered and its internally integrated control module controls the second drive motor 14 to stop working. Therefore, the anti-hunchback device 3 is in the maximum size state, so the user can stir the guide rail adjustment gear 25 to drive the two under the action of the guide rail drive wheel set 24, the guide rail drive pulley 23, the guide rail drive gear 22, and the guide rail drive rack 21. The two semicircular guide rails 9 move backward synchronously, and thus drive the two buckled arc buckles 10 to move backward synchronously, so that the user is firmly fixed on the backboard 16;

When the user needs to lie down and rest, he only needs to put his feet under the foot plate 56 first, and then press the handle 54 to press down on the backrest plate 16 to lie flat. , drag the user forward, that is, when the backrest board 16 is laid flat, the user's whole body is lying on the device, and the massage device of the device is at the user's back position at this time, which can massage and relieve the user's back fatigue;

In order to facilitate the operation of the device, a control module can be installed on the hydraulic cylinder, the first drive motor 8, and the second drive motor 14 to control its forward and reverse rotation, and at the same time, the control module of each drive element can be controlled by the remote controller for easy use operator operation;

After the device is used, the user only needs to press the handle 54, and the locking pawl 53 is pushed aside. Under the action of the two return coil springs, the leg support plate 47 and the backrest plate 16 return to their original positions at the same time, and the hydraulic pressure should be controlled at the same time. Cylinder, the first drive motor 8, the second drive motor 14 reverse, promptly complete the reset work of this device;

After the user gets up, pressing plate 44 returns to the original position in the lifting of back-moving spring 46 effect, and the 3rd driving motor 43 stops working, and massage piece 38 is after spring action is in retracting backboard 16, and this device gets back to initial state.

The present invention improves the existing chairs for preventing spine bending, and replaces the flexible straps with rigid front and rear adjustable arc buckles, which enhances the correction effect and can be adjusted at the same time, and can adapt to people with different body types; additional anti-side The bending device prevents the scoliosis caused by the long-term sideways tilt of the user's body; a waist and back massage device is also added to massage the sedentary users to prevent the occurrence of other symptoms caused by long-term muscle fatigue.

Claims (10)

1. A chair for preventing spine bending, comprising a chair main body (1), characterized in that the main body (1) is slid up and down and connected with an anti-side bending device (2), and the main body (1) is slid forward and backward and connected with an anti-hunchback device(3); The anti-side bending device (2) includes two vertical plates (4) sliding up and down connected to the main body (1), and two vertical plates (4) are fixedly connected with a vertical rack ( 5) and one horizontal rack (6), the two vertical racks (5) and the two horizontal racks (6) are fixedly connected to the The first driving motor (8) on the main body (1) is connected, so that the first driving motor (8) can drive the two vertical plates (4) to rise and slide left and right to clamp the user after rising to the top. tight; The anti-hunchback device (3) includes a semicircular guide rail (9) slidingly connected to the main body (1) front and rear, and two arc buckles (10) are slidingly connected to the semicircular guide rail (9). The arc-shaped buckles (10) are fixedly connected with arc-shaped racks (11), and the sides of the two arc-shaped racks (11) are meshed with buckles rotatably connected to the semicircular guide rails (9). The driven gear (12), the two buckle driven gears (12) are connected through the buckle transmission wheel set (13) and the second drive motor (14) fixedly connected to the main body (1), Making the second driving motor (14) work can drive the two arc buckles (10) to pass through the main body (1) and fasten the user to the main body (1). 2. A chair for preventing spinal curvature according to claim 1, characterized in that, the main body (1) includes a seat board (15), and the rear end of the seat board (15) is connected with a back board (16), The two sides of the seat board (15) are fixedly connected with handrails (17), the rear end surface of the backrest board (16) is fixedly connected with guide grooves (18), and the two semicircular guide rails (9) are fixedly connected with sliding devices. Guide keys (19) in the guide groove (18), each of the guide keys (19) is fixedly connected with a fixed link (20) through the guide groove (18), and the fixed link (20) will All the guide keys (19) are connected as one, and the lower end of the fixed link (20) is fixedly connected with a guide rail drive rack (21) slidingly connected to the guide groove (18), and the guide rail drive rack (21) is (21) A guide rail drive gear (22) rotatably connected to the guide groove (18) is meshed beside it, and the guide rail drive gear (22) is coaxially fixedly connected with a guide rail drive pulley (23), and the guide rail drive pulley (23) The guide rail drive wheel set (24) connected to the main body (1) is connected with the guide rail adjustment gear (25) rotationally connected to the armrest (17), so that the user can toggle the guide rail adjustment gear (25) The semicircular guide rail (9) can be adjusted to slide forward and backward. 3. A chair for preventing spinal curvature according to claim 2, characterized in that, the buckle drive wheel set (13) includes a buckle motor gear (26) rotatably connected to the rear end surface of the backboard, and the buckle The ring motor gear (26) is connected to the second drive motor (14) fixedly connected to the backrest board (16), and the buckle motor gear (26) is meshed with a rotating connection connected to the rear end surface of the backrest board (16). The buckle drive gear (27), the buckle motor gear (26) and the buckle drive gear (27) are all coaxially fixedly connected with the buckle drive pulley (28), and the two buckle driven gears (12) are coaxially fixedly connected with buckle driven pulleys (29), and the two said buckle driven pulleys (29) pass through two sets of tensioning devices (30) and two said buckle drive pulleys respectively (28) CONNECTED. 4. A chair for preventing spinal curvature according to claim 3, characterized in that, the two sets of tensioning devices (30) each include two tensioning links (31) with one ends hinged together, two The other end of the tensioning link (31) is respectively rotatably connected to the buckle driving pulley (28) and the buckle driven pulley (29). The tension pulley (32), the buckle drive pulley (28) is connected by a belt around the tension pulley (32) and the buckle driven pulley (29). 5. The chair for preventing spinal curvature according to claim 2, characterized in that, the riser drive wheel set (7) includes two rotating wheels that can respectively engage with the two vertical racks (5). The vertical drive gear (33) connected to the bottom surface of the seat (15) and the two horizontal drive gears (34) that are rotatably connected to the bottom surface of the seat (15) can engage with the two transverse racks (6) respectively , the two vertical drive gears (33) are coaxially fixedly connected and connected to the first drive motor (8) through worm gear transmission, and the two horizontal drive gears (34) are connected through bevel gears, The pulley is connected with the worm gear and the first drive motor (8), and the two vertical drive gears (33) are coaxially rotated and connected with a long gear that can mesh with the vertical rack (5). gear (35), the two long gears (35) do not rotate with the two vertical drive gears (33), and the two long gears (35) are coaxially fixedly connected with a positioning ratchet (36 ), each of the positioning ratchets (36) is equipped with a positioning pawl (37) that is rotatably connected to the bottom surface of the seat (15), so that when the two vertical racks (5) slide to Corresponding long gear (35) can not fall due to gravity when going up. 6. A chair for preventing spinal curvature according to claim 2, characterized in that, a number of massage blocks (38) are slidingly connected back and forth on the backrest board (16), and there is a rotation behind the massage block (38). The drive disc (39) connected to the backrest board (16), the drive disc (39) is fixedly connected with the bumps (40) that can contact with several massage blocks (38), the The drive disc (39) is coaxially fixedly connected with a disc driven pulley (41), and the disc driven pulley (41) is connected to the disc drive pulley (42) on the backboard (16) through a belt and rotating The disc drive pulley (42) is connected to the third drive motor (43) fixedly connected to the backboard (16). 7. A chair for preventing spinal curvature according to claim 6, characterized in that, the seat board (15) slides up and down and is connected with a pressure plate (44), and the lower end of the pressure plate (44) passes through the seat board (15) Slidingly connected with a switch lever (45) that is rotatably connected to the bottom surface of the seat (15), the other end of the switch lever (45) is in contact with the switch of the third drive motor (43), and the pressure plate (44) The lower end is fixedly connected with a return spring (46) whose other end is fixedly connected to the bottom surface of the seat (15). 8. A chair for preventing spinal curvature according to claim 2, characterized in that, the back board (16) is rotatably connected to the rear end of the seat board (15), and the seat board (15) The front end is rotatably connected with a leg support plate (47), and the rotating shafts of the backrest plate (16) and the leg support plate (47) are both coaxially fixedly connected with a swing driven rotatably connected to one side of the seat plate (15). The pulley (48), the seat plate (15) side rotation is connected with two swing drive pulleys (49) respectively connected with the two swing driven pulleys (48) belts, and the two swing drive pulleys (49) The belt pulleys (49) are all coaxially fixedly connected with a swing driven gear (50), and a swing drive gear rotatably connected to the side of the seat plate (15) meshes between the two swing driven gears (50) (51), the oscillating drive gear (51) is coaxially and fixedly connected with a clamping ratchet (52), and the clamping ratchet (52) is equipped with a clamping wheel rotatably connected to the seat plate (15). bit pawl (53). 9. A chair for preventing spinal curvature according to claim 8, characterized in that, the rotating shafts of the backrest board (16) and the leg support board (47) are both sleeved with snap springs, and the locking ratchets A handle (54) is fixedly connected to the pawl (53), and the user presses the handle (54) to return the backrest board (16) and the leg support board (47) to their original positions. 10. A chair for preventing spinal curvature according to claim 8, characterized in that, the front end of the leg support plate (47) is slidably connected with a telescopic board (55), and the front end of the telescopic board (55) is rotatably connected There is a foot clamp (56), and the telescopic board (55) communicates with a hydraulic cylinder through a hose, and the hydraulic cylinder can control the telescopic board (55) to expand and contract.