CN108657323B - An intelligent access device for double-layer bicycles - Google Patents

Abstract

The invention discloses a double-layer bicycle intelligent access device, which comprises a base, a lower roller mechanism and an upper roller mechanism arranged sequentially from bottom to top. The base is connected with a main shaft through a coupling, and the main shaft is sequentially provided with a first lower bushing, a second lower bushing and an upper bushing from bottom to top. The first lower bushing is connected to a main drive motor through a gear, which overcomes the disadvantages of existing bicycle parking devices, breaks the limitations of traditional plane parking, improves the utilization rate of space, and increases the number of bicycles per unit area by about 50%. Shopping malls and other places with a large demand for bicycle parking can not only make the vehicles neatly arranged, but also save a lot of land.

Description

An intelligent access device for double-layer bicycles

technical field

The invention belongs to the technical field of urban traffic, and in particular relates to an intelligent access device for double-deck bicycles.

Background technique

With the improvement of people's living standards and the further development of urbanization, urban traffic congestion has increasingly become a problem. As one of the main modes of transportation, bicycles are not only convenient, flexible, highly mobile, and highly adaptable to roads, but also people's awareness of energy conservation and emission reduction has been further improved. Green travel has become a lifestyle pursued by modern people, and the service of shared bicycles has emerged in society. However, no matter in residential areas, crowded places, bus stops, or near subway stations, private bicycles and shared bicycles are placed in a disorderly manner, resulting in a situation of low space utilization, especially in urban areas where traffic congestion is further aggravated, and the safety of bicycles is also threatened to a certain extent.

Traditionally, bicycles are parked on a flat surface, parked side by side at the position where the ground lock is set or locked by the owner himself with a lock. This parking method still occupies a very large space and occupies a large area of sidewalks, and the safety situation is also worrying. For example, the patent No. 201710497063.6 is a three-dimensional bicycle parking device with the application date of June 26, 2017. On the basis of the original parking method, a second-story bicycle parking position is added on the top of the first-floor bicycle by the design of the mechanical structure. However, the space utilization rate of this method is still not high, and the necessary mechanical structure further increases the occupied plane area.

At this stage, in order to solve such problems, a rotating wheel-type shared bicycle centralized hosting device, such as the patent No. 201710143357.9 with the application date of March 11, 2017, has been invented to solve such problems. It is like a Ferris wheel-type parking device.

Existing bicycle parking has gradually tended towards automation, three-dimensional, aesthetic and intelligent. But the defect of existing technology mainly lies in that the utilization rate of space is not significantly improved, still occupies a large public area, and no matter for private or public bicycles, safety problems still exist. The traditional way still occupies the mainstream of the current social parking method, single-row placement takes up space, and the current placement of shared bicycles at bus stations or subway entrances is also relatively chaotic. Therefore, it is of great significance to design a novel parking system that is convenient for access, saves floor space, and saves time and effort.

Contents of the invention

In order to solve the above problems, the present invention provides a double-layer bicycle intelligent access device, which solves the problem of random parking of private bicycles or shared bicycles in public places such as communities and schools, and reduces the risk of bicycle theft. And improve the space utilization rate of parking bicycles, make the bicycles easy to park, and achieve the purpose of saving time and effort.

In order to achieve the above object, a double-layer bicycle intelligent access device according to the present invention includes a base, a lower roller mechanism and an upper roller mechanism arranged sequentially from bottom to top; the base is connected with a main shaft through a coupling, the main shaft is provided with a lower bushing and an upper bushing sequentially from bottom to top, and the lower bushing is connected to the main drive motor through gears; The upper end of the sleeve is fixedly connected with the upper top plate of the upper grooved cylinder, and the lower end is connected with the lower bushing through a reverse transmission mechanism; the lower roller mechanism includes the lower grooved cylinder and the lower bushing, and the side of the lower grooved cylinder is provided with a number of parking grooves and a lifting groove. Electronic locks are provided.

Further, the lifting mechanism includes a bottom supporting piece, a clamping lifting device and a lifting motor, wherein the bottom supporting piece is fixed on the bottom plate of the lower cylinder of the lower grooved cylinder, a guide rail column is fixed on the bottom supporting piece, the upper and lower ends of the guide rail column are respectively provided with a top sprocket and a bottom sprocket, the top sprocket and the bottom sprocket are surrounded by a closed chain ring, and the bottom sprocket is installed on the output shaft of the lifting motor; the clamping lifting device is used to clamp the bicycle, and it is fixedly connected with the closed chain ring.

Further, the clamping and lifting device includes a lifting mechanism and a clamping motor. A first clamping shaft and a second clamping shaft are arranged horizontally in the lifting body. The lifting platform is fixed on the outside of the bottom of the lifting mechanism.

Further, a lifting platform is provided at the lower end of the clamping and lifting device, and the lifting platform includes a first stepping motor, the output shaft of the first stepping motor is connected to the opening and closing mechanism, and the opening and closing mechanism is fixedly connected to the splint.

Further, the opening and closing mechanism includes a first connecting rod, a second connecting rod and a turntable, the middle part of the turntable is fixed to the output shaft of the clamping motor, the first connecting rod and the second connecting rod are sequentially hinged on both sides of the turntable, and the end of the second connecting rod is fixed to the splint.

Further, the reverse transmission mechanism includes two horizontal bevel gears arranged in parallel and two vertical bevel gears, the two vertical bevel gears are arranged opposite to each other, and the vertical bevel gear meshes with the upper and lower horizontal bevel gears.

Further, the electronic lock includes a lock frame, a second stepping motor, two racks, arc-shaped tire clamps, and an arc-shaped front fork support. The lock frame is a U-shaped groove structure. Two first lock splints are arranged oppositely on the inside of the lock frame. The first lock splint is provided with a second lock splint. The inside of the second lock splint is provided with an arc-shaped front fork support. The output shaft of the feeder motor is connected with a third gear, the two sides of the third gear mesh with two racks respectively, and the two racks are respectively fixedly connected with the two first lock splints.

Further, it also includes a user operation terminal, the user operation terminal is connected with the single-chip microcomputer, and the single-chip microcomputer is connected with the main driving motor.

Further, several bearing wheels are fixedly arranged between the base and the lower roller mechanism.

Further, it also includes a casing, one side of the casing is provided with an opening, the height of the opening is greater than the length of the bicycle, and the width of the opening is greater than the width of the bicycle.

Compared with the prior art, the present invention has at least the following beneficial technical effects, overcomes the disadvantages of existing bicycle parking devices, breaks the limitations of traditional plane parking, improves the utilization rate of space, increases the number of bicycle parking per unit area by about 50%, and is used in schools, shopping malls and other places with a large demand for bicycle parking, which can not only make the vehicles neatly placed, but also save a lot of land.

Further, the lifting mechanism includes a bottom supporting piece, a clamping lifting device and a lifting motor, wherein the bottom supporting piece is fixed on the bottom plate of the lower cylinder of the lower grooved cylinder, and a guide rail column is fixed on the bottom supporting piece, and the upper and lower ends of the guide rail column are respectively provided with a top sprocket and a bottom sprocket, and a closed chain ring is arranged around the top sprocket and the bottom sprocket wheel, and the bottom sprocket is installed on the output shaft of the lifting motor; .

Further, the clamping lifting device includes a lifting mechanism and a clamping motor. A first clamping shaft and a second clamping shaft are arranged horizontally in the lifting body. The lifting table is fixed outside the bottom of the lifting mechanism.

Further, a lifting platform is provided at the lower end of the clamping and lifting device, and the lifting platform includes a connector and a first stepping motor. The output shaft of the first stepping motor is connected to the opening and closing mechanism. The rotation of the first stepping motor drives the first connecting rod to rotate, and the first connecting rod drives the second and third connecting rods to rotate, thereby changing the distance between the two splints.

Further, the opening and closing mechanism includes a first connecting rod, a second connecting rod and a turntable. The middle part of the turntable is fixed to the output shaft of the clamping motor. The first connecting rod and the second connecting rod are sequentially hinged on both sides of the turntable. The end of the second connecting rod is fixed to the splint, and the clamping or loosening of the splint is realized through the crank linkage mechanism, which has a large bearing capacity and can withstand impact force.

Further, the electronic lock includes a lock frame, a second stepping motor, two racks, arc-shaped tire clamps, and an arc-shaped front fork support. The lock frame is a U-shaped groove structure. Two first lock splints are arranged oppositely on the inside of the lock frame. The first lock splint is provided with a second lock splint. The inside of the second lock splint is provided with an arc-shaped front fork support. The output shaft of the motor is connected with a third gear, the two sides of the third gear mesh with two racks, and the two racks are fixedly connected with the two first lock splints respectively.

Further, it also includes a user operation terminal, the user operation terminal is connected with the single-chip microcomputer, the single-chip microcomputer is connected with the main driving motor, and the single-chip microcomputer controls the rotation of the lower roller mechanism and the lower roller mechanism according to the user's instruction, realizing automatic control and convenient operation.

Furthermore, several load-bearing wheels are fixedly arranged between the base and the lower roller mechanism, which greatly reduces the friction force when the lower roller mechanism rotates, and saves manpower or other energy.

Further, it includes a shell, one side of the shell is provided with an opening, the height of the opening is greater than the length of the bicycle, and the width of the opening is greater than the width of the bicycle, the shell protects the stored bicycles and prevents the bicycles from being damaged by external conditions.

Description of drawings

Fig. 1 is the overall appearance diagram of the double-layer annular smart bicycle access system of the present invention;

Fig. 2 is the structural representation of double-deck annular three-dimensional bicycle parking system of the present invention;

Fig. 3 is a schematic diagram of the upper roller mechanism and its internal structure;

Fig. 4 is a schematic diagram of the lower drum mechanism and its internal structure;

Fig. 5 is a schematic diagram of the lower drum mechanism;

Figure 6 is a main view of the lifting mechanism;

Fig. 7 is a structural schematic diagram of the lifting platform;

Figure 8 is a schematic diagram of the internal structure of the lifting platform

Fig. 9 is a schematic structural diagram of the electronic lock;

Fig. 10 is a schematic structural diagram of the lock splint on the left side of the electronic lock;

In the accompanying drawings: 1, upper roller mechanism, 2, lower roller mechanism, 3, base, 4, electronic lock, 5, lifting platform, 6, splint, 7, upper bushing, 8, second lower bushing, 9, vertical bevel gear, 10, horizontal bevel gear, 11, top sprocket wheel, 12, chain, 13, guide rail column, 14, lifting mechanism, 15, first lower bushing, 16, bottom sprocket wheel, 17, lifting motor, 18, bottom bracket, 19, main drive Motor, 20, bottom plate of lower cylinder, 21, load-bearing wheel, 22, shell, 23, user operation end, 24, clamping motor, 25, opening and closing mechanism, 26, first clamping shaft, 27, first clamping shaft, 28, connector, 29, first stepping motor, 30, first connecting rod, 31, second connecting rod, 32, turntable, 33, second stepping motor, 34, lock frame, 35, lock cover, 36, first locking splint, 37, The second locking splint, 38, flange bearing, 39, arc tire clamp, 40, micro switch, 41, axle sleeve, 42, arc front fork support, 43, lifting groove, 44, second gear, 46, lifting platform upper plate, 47, first gear, 48, rack, 49, sliding shaft, 50, positioning shaft, 51, upper band grooved cylinder, 52, lower band grooved cylinder, 151, first lower axle sleeve, 152, second lower axle sleeve.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation. Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

Referring to Fig. 1 and Fig. 2, a double-layer bicycle intelligent access device comprises a circular shell 22, one side of the shell 22 is provided with an opening, the height of the opening is greater than the length of the bicycle, the width of the opening is greater than the width of the bicycle, the outer wall of the shell 22 near the opening is provided with a user operation end 23, the base device, the lower roller mechanism 2 and the upper roller mechanism 1, the lower roller mechanism 2 and the upper roller mechanism 1, the lower roller mechanism 2 and the upper roller mechanism 1 are arranged in the shell 22 sequentially from bottom to top.

Referring to Fig. 2 and Fig. 4, the base device includes a circular base 3, a main shaft and load-bearing wheels 21, the main shaft is the fixing of the main frame, the main shaft is covered with a lower bushing 15 and an upper bushing 7, and the main shaft is fixed in the center of the circular base 3 through a coupling; ; The top of the main shaft is equipped with a locking retaining ring and a thrust ball bearing locking retaining ring, and the upper part of the locking retaining ring is a thrust ball bearing, which provides support for the horizontal bevel gear 10, so as to bear the gravity of the upper roller mechanism 1. The main drive motor 19 is installed on the main shaft bottom, and the output shaft of the main drive motor 19 is fixedly connected with a first gear 47. The lower bushing 15 includes a first lower bushing 151 and a second lower bushing 152 fixed by a flange.

With reference to Fig. 3, upper roller mechanism 1 comprises upper grooved cylinder 51 and upper shaft sleeve 7, upper grooved cylinder is a regular polygonal cylinder without bottom surface, upper grooved cylinder is arranged above the lower belt grooved cylinder, both are independent of each other, upper grooved cylinder is fixedly connected with upper shaft sleeve 7 through the upper top plate, and long rectangular parking grooves are evenly spaced on the upper side of the upper grooved cylinder, and the length of all parking grooves extends downwards to the lower end surface of the upper grooved cylinder, that is, the parking groove of the upper grooved cylinder is a U-shaped groove. Each parking slot top is fixed with electronic lock 4, and upper top plate is arranged on the top of the grooved cylinder, and the upper end of upper shaft sleeve 7 is connected to the center of the lower end surface of the upper top plate, and the lower end is interference fit with the upper end surface of horizontal bevel gear 10.

With reference to Fig. 4, following roller mechanism 2 comprises following grooved cylinder 52, lifting mechanism 14, electronic lock 4, the first lower axle sleeve 151 and the second lower axle sleeve 152, the upper grooved cylinder is a regular polygon cylinder, the shape and size of the lower grooved cylinder are the same as the upper grooved cylinder, the side of the lower grooved cylinder is provided with a long rectangular parking groove, and one of the sides is provided with a lifting groove 43, and the lifting groove 43 runs through the top of the lower grooved cylinder upwards, which is convenient for the bicycle to move up and down. Both sides of the inside of the parking groove are provided with long U-shaped guide grooves. The U-shaped guide grooves are used to guide the bicycle wheels and provide support for the bicycle during the bicycle lifting process; Electronic lock4.

A lifting mechanism 14 is arranged on the lower grooved cylinder, and the lifting mechanism 14 includes a bottom bracket 18, a guide rail column 13 and a clamping and lifting device. Wherein, the bottom bracket 18 is fixed on the lower tube bottom plate 20, the guide rail column 13 is vertically installed on the bottom bracket 18, the top sprocket wheel 11 is arranged on the top of the guide rail column 13, the lifting motor 17 is installed on the bottom of the bottom bracket 18, and the bottom sprocket wheel 16 is installed on the output shaft of the lifting motor 17; the lifting mechanism 14 can move vertically relative to the guide rail column 13; The chain ring 12 is fixedly connected.

Referring to FIGS. 5 and 6 , the clamping and lifting device includes a lifting mechanism 14 , a splint 6 , a lifting platform 5 , linear bearings and shafts, a clamping motor 24 and an opening and closing mechanism 25 .

The first clamping shaft 26 and the second clamping shaft 27 are horizontally installed in the hoisting mechanism 14, and the outer side of the hoisting mechanism 14 is provided with two rectangular installation ports; Keep the opening and closing in a parallel state, so that the clamping plates 6 on both sides move toward each other to clamp and fix the bicycle and keep the bicycle posture; the clamping motor 24 and the opening and closing mechanism 25 are installed inside the lifting mechanism 14, and the clamping motor 24 drives the opening and closing mechanism 25 to control the opening and closing of the clamping plates 6 on both sides. The opening and closing mechanism 25 includes a first connecting rod 30, a second connecting rod 31 and a rotating disk 32. , the other end of the first connecting rod 30 is hinged to one end of the second connecting rod 31 , the other end of the second connecting rod 31 is fixedly connected to one end of the connector 28 , and the other end of the connector 28 is fixed to the splint 6 .

The first lower bushing 151 , the second lower bushing 152 and the upper bushing 7 are sleeved on the outside of the main shaft through the inner needle roller bearings, and the second lower bushing 152 is connected to the upper bushing 7 through a reverse transmission mechanism. The reverse transmission mechanism consists of two horizontal bevel gears 10 arranged in parallel and two vertical bevel gears 9. The two vertical bevel gears 9 are arranged opposite to each other. The vertical bevel gear 9 meshes with the upper and lower horizontal bevel gears 10. The transmission ratio of the upper and lower horizontal bevel gears 10 is 1:1. The lower end of the upper bushing 7 is fixedly connected to the upper horizontal bevel gear 10, and the top of the second lower bushing 152 is fixedly connected to the upper horizontal bevel gear 10.

Referring to Fig. 7 and Fig. 8, the lifting platform includes a lifting platform upper plate 46, a connector 28 and a first stepping motor 29, the output shaft of the first stepping motor 29 is connected with the opening and closing mechanism 25, and the rotation of the first stepping motor 29 drives the turntable 32 to rotate, and the turntable 32 drives the first connecting rod 30 and the second connecting rod 31 to rotate, and then the distance between the two splints 6 changes.

Referring to FIGS. 9 and 10 , the electronic lock 4 includes a lock frame 34 , a lock cover 35 , a splint, a second stepper motor 33 , two racks 48 , an arc-shaped tire clamp 39 and an arc-shaped front fork support 42 . The lock frame 34 and the lock cover 35 form a U-shaped groove structure. The inside of the lock frame 34 is oppositely provided with two first lock splints 37 . The first lock splint 37 is provided with a second lock splint 36 . The inside of the second lock splint 36 is provided with an arc-shaped front fork support 42 . Shaped tire clamp 39, arc-shaped tire clamp 39 and micro switch 40 are located on the same side of the first lock splint 37, the positioning shaft 50 passes through the two first lock splints 3 and the lock frame 34, the positioning shaft 50 is connected with the first lock splint 37 through a linear flange bearing 38, and the linear flange bearing 38 is a lmh6uu linear flange bearing. The output shaft of the second stepping motor 33 is connected with a third gear, and both sides of the third gear mesh with two racks 48 respectively, and the two racks 48 are fixedly connected with the two first lock splints 37 respectively.

The electronic lock 4 is controlled by the single-chip microcomputer. When the bicycle is detected, the stepper motor 33 at the top of the electronic lock is controlled by the single-chip microcomputer. The single-chip microcomputer is an STM32 single-chip microcomputer, and then the stepper motor 33 engages with the rack 48 to drive the lock splints 36 on both sides to close. The microswitch 40 touches the back side of the arc-shaped tire clip 39, and this action drives the stepper motor 33 to stop rotating as an instruction. At this moment, the lock splint 36 movement process is completed; When the unlock command is received, the lifting mechanism 14 rises to the bicycle, and the single-chip microcomputer controls the splint 6 to close and clamp the bicycle. At the same time, the single-chip microcomputer drives the stepping motor 33 to rotate, and the locking splint 36 is driven to open by the rack 48, unlocked, and the bicycle is loosened. The lifting mechanism 14 puts the bicycle down.

The user operation end is located at the parking entrance of the device, and the user sends an instruction to the single-chip microcomputer through the user operation end 23, and the user operation end 23 is connected with the single-chip microcomputer, and the single-chip microcomputer is connected with the first stepper motor 29, the second stepper motor 33, the lifting motor 17, the main drive motor 19 and the clamping motor 24. The single-chip microcomputer controls the rotation of the lower roller mechanism 2 and the lower roller mechanism 2 and the opening and closing of the electronic lock 4 according to user instructions. Instructions include car storage instructions and car pickup instructions.

The use process of this device is as follows:

When storing in the lower layer: the main drive motor 19 drives the cylinder to rotate so that the designated parking space is aligned with the entrance, the bicycle is pushed in from the opening from the vertical state, and the bicycle is placed in the parking slot of the lower cylinder, the front wheel enters the electronic lock 4, the electronic lock 4 is locked, the bicycle is locked in the vertical state again, and the parking is completed.

When storing on the upper layer: the main drive motor 19 drives the cylinder to rotate so that the lifting groove 43 is aligned with the opening, and the bicycle is pushed from the entrance into the two splints 6 on the lifting platform 5 from the vertical state. Referring to FIG. 3. Align the designated parking slot on the upper roller, and then the lifting mechanism 14 drives the endless chain 12 on the guide rail column 13 through the lifting motor 17 to pull the bicycle upwards. When it reaches the top, it triggers the electronic lock 4 on the top of the upper layer, and then the electronic lock 4 locks the bicycle. The power of the lifting mechanism 14 is provided by the lifting motor 17, and the chain 12 is responsible for transmitting power to drive the lifting mechanism to move upwards. The top sprocket 11 and the bottom sprocket 16 are matched with it.

When taking out the upper layer: the user operation terminal 23 issues an instruction to rotate the target vehicle to the upper track directly above the upper layer entrance lifting mechanism, the lifting device moves to the position of the upper layer lock, and the electronic lock 4 is opened, then the lifting mechanism 14 drives the bicycle to a vertical position on the first layer, and then removes it.

Wherein, the rotational power of the upper and lower rollers is provided by the main driving motor 19, and the driving motor 19 drives the first lower bushing 151 to rotate. Since the first lower bushing 151 rotates the same as the lower roller, the power is transmitted to the second lower bushing 152, and the upper bushing 7 is driven by the horizontal bevel gear 10 and the vertical bevel gear 9, so that the upper roller rotates in reverse. When the main drive motor 19 rotates, the bottom plate 20 of the lower cylinder combined with the bearing wheels 21 provides support for the rotation of the lower cylinder, and guides the rotation of the lower cylinder.

Claims (6)

1. A double-layer bicycle intelligent access device, characterized in that it includes a base (3), a lower roller mechanism (2) and an upper roller mechanism (1) arranged in sequence; The base (3) is connected with a main shaft through a coupling, and the main shaft is provided with a lower shaft sleeve (15) and an upper shaft sleeve (7) sequentially from bottom to top, and the lower shaft sleeve (15) is connected with the main drive motor (19) through a gear; The upper roller mechanism (1) includes an upper grooved cylinder (51) and an upper shaft sleeve (7). The upper grooved cylinder (51) is fixedly connected with the upper shaft sleeve (7). There are several parking slots on the outer surface of the upper grooved cylinder (51). An electronic lock (4) is fixed on the top of each parking slot. The upper end of the upper shaft sleeve (7) is fixedly connected with the upper top plate of the upper grooved cylinder (51), and the lower end is connected with the lower shaft sleeve (15) through a reverse transmission mechanism; The lower roller mechanism (2) includes a lower grooved cylinder (52) and a lower shaft sleeve (15). Several parking grooves and a lifting groove (43) are arranged on the side of the lower grooved cylinder (52). The upper top plate of the grooved cylinder (52) is fixedly connected, and the lower grooved cylinder (52) is equipped with an electronic lock (4) on each parking groove except the lifting groove (43); The reverse transmission mechanism includes two horizontal bevel gears (10) arranged in parallel and two vertical bevel gears (9), the two vertical bevel gears (9) are arranged oppositely, and the vertical bevel gear (9) meshes with the upper and lower horizontal bevel gears (10); The lifting mechanism (14) includes a bottom support (18), a clamping lifting device and a lifting motor (17), wherein the bottom support (18) is fixed on the bottom plate (20) of the lower grooved cylinder (52), the bottom support (18) is fixed with a guide post (13), and the upper and lower ends of the guide post (13) are respectively provided with a top sprocket (11) and a bottom sprocket (16). The closed chain ring (12), the bottom sprocket (16) is installed on the output shaft of the lifting motor (17); the clamping lifting device is used for clamping the bicycle, and it is fixedly connected with the closed chain ring (12); The clamping and lifting device includes a lifting mechanism (14) and a clamping motor (24). A first clamping shaft (26) and a second clamping shaft (27) are arranged horizontally in the lifting mechanism (14). The lifting table (5) is fixed on the outside of the bottom of the lifting mechanism (14). The opening and closing mechanism (25) is connected, and the opening and closing mechanism (25) is fixedly connected with the splint (6). 2. A double-layer bicycle intelligent access device according to claim 1, characterized in that the opening and closing mechanism (25) includes a first connecting rod (30), a second connecting rod (31) and a turntable (32), the middle part of the turntable (32) is fixed to the output shaft of the clamping motor (24), the first connecting rod (30) and the second connecting rod (31) are hinged on both sides of the turntable (32), and the end of the second connecting rod (31) is fixed to the splint (6). 3. A double-layer bicycle intelligent access device according to claim 1, characterized in that the electronic lock (4) includes a lock frame (34), a second stepping motor (33), two racks (48), an arc-shaped tire clamp (39) and an arc-shaped front fork support (42), the lock frame (34) is a U-shaped groove structure, two first lock splints (37) are arranged on the inner side of the lock frame (34), and a second lock splint (36) is arranged on the first lock splint (37) , the inner side of the second locking splint (36) is provided with an arc-shaped front fork support (42), the inner side of the first locking splint (37) is provided with a micro switch (40), and both sides of the micro switch (40) are provided with a sliding shaft (49), the sliding shaft (49) is connected to the first locking splint (37) through a bushing (41), and one end of the sliding shaft (49) is provided with an arc-shaped tire clamp (39). Mesh with two racks (48), and the two racks (48) are fixedly connected with two first lock splints (37) respectively. 4. The intelligent access device for double-deck bicycles according to claim 1, further comprising a user operation terminal (23), the user operation terminal (23) is connected to a single-chip microcomputer, and the single-chip microcomputer is connected to the main drive motor (19). 5 . The intelligent access device for double-deck bicycles according to claim 1 , characterized in that, several load-bearing wheels ( 21 ) are fixedly arranged between the base ( 3 ) and the lower roller mechanism ( 2 ). 6. A double-layer bicycle intelligent access device according to claim 1, characterized in that it also includes a housing (22), an opening is provided on one side of the housing (22), the height of the opening is greater than the length of the bicycle, and the width of the opening is greater than the width of the bicycle.