WO2018192359A1

WO2018192359A1 - Lifting table

Info

Publication number: WO2018192359A1
Application number: PCT/CN2018/081595
Authority: WO
Inventors: 林正刚
Original assignee: 东莞世昌五金制品厂有限公司
Priority date: 2017-04-19
Filing date: 2018-04-02
Publication date: 2018-10-25
Also published as: CN107149278A

Abstract

A lifting table comprises a table frame (12) and a telescopic tube (13). The telescopic tube (13) supports the table frame (12). The telescopic tube (13) comprises an outer tube (131) and an inner tube (132), and the telescopic tube (13) also comprises an outer end plug (133) and an inner end plug (134). The outer end plug (133) is disposed at one end portion of the outer tube (131), the inner end plug (134) is disposed at one end portion of the inner tube (132), and one end of the inner tube (132) provided with the inner end plug (134) is inserted in one end of the outer tube (131) provided with the outer end plug (133). The outer end plug (133) is provided with a rolling body (1342), and the rolling body (1342) locally protrudes out of the inner wall of the outer end plug (133). The inner end plug (134) is provided with a supporting portion (1341), and the supporting portion (1341) is located on the periphery of the inner tube (132). The outer wall of the outer end plug (133) is fixedly connected to the outer tube (131), and the inner wall of the outer end plug (133) and the inner tube (132) are in clearance fit. The supporting portion (1341) is accommodated in the outer tube (131) in a matching manner, and slides along the inside of the outer tube (131). In the lifting table, the outer end plug (133) is disposed on the outer tube (131) and the inner end plug (134) is disposed on the inner tube (132), so that the resistance caused due to the size and shape deviation of the outer tube (131) and the inner tube (132) can be reduced, and the lifting is steady and smooth.

Description

Lift table

Technical field

The invention relates to the field of furniture, in particular to a lifting table.

Background technique

The existing products are more and more humanized and can meet the various needs of different users.

Existing users, such as children and adults, can be divided into multiple levels, corresponding to the height requirements of the product. In order to meet the user's need for self-adjustment, there is no need for the existing table. Make improvements to make it easier to operate and less laborious.

Existing tables that can adjust the height, most of them use electric power to promote the lifting of the desktop. According to modern medical research, long-term sitting on the human body will affect the health of the spine.

Summary of the invention

In order to solve the above-mentioned prior art problems, the present invention provides a lifting table, which is provided with an outer end plug and an inner end plug respectively on the outer tube and the inner tube, which can reduce the resistance caused by the deviation of the outer tube and the inner tube due to the size and shape deviation. Make the lifting more smooth and smooth.

The present invention solves the above-mentioned prior art problems, and provides a lifting table, including a table frame and a telescopic tube, the telescopic tube carrying the table frame; the telescopic tube includes an outer tube and an inner tube; the telescopic tube further includes An outer end plug and an inner end plug, the outer end plug being disposed at one end of the outer tube, the inner end plug being disposed at one end of the inner tube; the inner tube being provided with the inner end plug One end is inserted into one end of the outer tube provided with the outer end plug; the outer end plug has a roller body, the roller body partially protrudes from an inner wall of the outer end plug; and the inner end plug has a support portion The support portion is located at a periphery of the inner tube; an outer wall of the outer end plug is fixedly connected to the outer tube, and an inner wall of the outer end plug is matched with the inner tube; the support portion is cooperatively received Inside the outer tube, it slides along the inside of the outer tube.

Further improvements of the invention are as follows.

The inner end plug has a roller body, and the roller body is disposed on the support portion, and the roller body partially protrudes from a surface of the support portion.

The outer end plug has a ring body, the ring body has a mounting hole, and the roller body is disposed on the mounting hole; the roller body partially protrudes from an inner surface of the ring body, and the roller body is not higher than The outer surface of the ring body.

The roller body is at least one, or a plurality of uniformly distributed.

The outer surface of the ring body is provided with a ring step, and the outer tube is butted with the ring step.

The support portion has at least two mating faces that are spaced apart from the inner wall of the outer tube.

The gas pressure bar comprises a pressure tube, a piston rod and a valve needle; a free end of the pressure tube is fixedly connected to a lower end of the outer tube, and a free end of the piston rod is fixedly connected to an upper end of the inner tube.

Including the wrench, the wrench can change the state of the needle and adjust the length of the gas bar.

A cross bar is disposed on an upper portion of the telescopic tube, and the spanner is hingedly connected to the cross bar; the wrench is rotatable to be disengaged from the squeeze valve needle.

A table top and a tripod are included; the table top is placed on the table frame; and the stand is fixed to a lower portion of the telescopic tube.

Compared with the prior art, the invention has the beneficial effects that the outer end plug and the inner end plug are respectively disposed on the outer tube and the inner tube, which can reduce the resistance caused by the deviation of the outer tube and the inner tube due to the size and shape deviation, so that the lifting and lowering are more Smooth and smooth. Energy is not used to save energy.

DRAWINGS

1 is a schematic structural view of a lifting table of the present invention.

Figure 2 is an enlarged cross-sectional view showing the valve needle at A in Figure 1 being unsqueezed.

Figure 3 is an enlarged cross-sectional view showing the valve needle at A in Figure 1 after being squeezed.

Figure 4 is an enlarged cross-sectional view of the portion B of Figure 1.

FIG. 5 is a schematic view showing the exploded state of the telescopic tube of FIG. 1. FIG.

Figure 6 is a schematic view showing the structure of the outer end plug.

Figure 7 is a schematic view showing the structure of the inner end plug.

Figure 8 is a schematic cross-sectional view of the inner end plug and the outer tube.

Desktop 11

Table frame 12

Telescopic tube 13 outer tube 131

Inner tube 132

Outer end plug 133 ring body 1331, roller 1332

Inner end plug 134 support portion 1341, roller 1342

Tripod 14

Pneumatic rod 15 pressure tube 151

Piston rod 152

Valve needle 153

Wrench 16

Nut 17

detailed description

The invention will now be further described with reference to the drawings and specific embodiments.

As shown in FIG. 1 to FIG. 8 , a lifting table includes a table frame 12 and a telescopic tube 13 . The telescopic tube 13 carries the table frame 12 . The length of the telescopic tube 13 can be adjusted to adjust the height of the table frame 12 . The extension tube 13 includes an outer tube 131, an inner tube 132, an outer end plug 133 and an inner end plug 134. The outer end plug 133 is disposed at one end of the outer tube 131, and the inner end plug 134 is disposed at one end of the inner tube 132; the inner tube One end of the inner end plug 134 is inserted into one end of the outer tube 131 provided with the outer end plug 133; the outer end plug 133 has a roller body 1332, the roller body 1332 partially protrudes from the inner wall of the outer end plug 133; the inner end plug 134 The support portion 1341 has a support portion 1341 at the periphery of the inner tube 132; the outer wall of the outer end plug 133 is fixedly connected to the outer tube 131, and the inner wall of the outer end plug 133 is in clearance fit with the inner tube 132; the support portion 1341 is fitted to the outer tube The inside of the 131 slides along the inside of the outer tube 131. The inner tube 132 and the outer tube 131 are in contact with each other via the inner end plug 134 and the outer end plug 133. The inner end plug 134 is in surface contact with the outer tube 131, and the outer end plug 133 and the inner tube 132 are in sliding friction. The resistance caused by the deviation of the size and shape of the outer tube 131 and the inner tube 132 is reduced, so that the lifting is smoother and smoother.

In order to reduce the friction between the inner end plug 134 and the outer tube 131, the inner end plug 134 of the present invention has a roller body 1342. The roller body 1342 is disposed on the support portion 1341, and the roller body 1342 partially protrudes from the surface of the support portion 1341. Thus, the inner end plug 134 and the outer tube 131 also have rolling friction.

The roller of the present invention can be used in two ways, a ball or a needle. For example, when the outer wall of the inner tube 132 is curved, a ball matching manner may be used; when the outer wall of the inner tube 132 is a flat surface, a matching manner of a needle roller may be selected; when the outer wall of the inner tube 132 is a flat surface, it may also be selected. The way in which multiple balls are arranged side by side. The inner wall of the outer end plug 133 and the outer wall of the inner end plug 134 can be provided in various shapes as needed, for example, in a circular shape, a rectangular shape, or an irregular shape.

The outer end plug 133 of the present invention has a ring body 1331. The ring body 1331 has a mounting hole. The roller body is disposed in the mounting hole. Since the roller body is in contact with the outer tube 131 and is in contact with the inner tube 132, the roller body can be The inside of the ring body 1331 is placed in the mounting hole. At least one of the rollers can be used to help reduce the friction of the inner tube 132 relative to the outer end plug 133, or a plurality of evenly distributed. For example, the ring body 1331 is a square ring, and the ring body 1331 has four faces, and at least two needle rollers can be disposed on each face.

The outer surface of the ring body 1331 of the present invention is provided with a ring step, and the outer tube 131 is butted with the ring step. The arrangement of the ring steps facilitates the mounting and fixing of the outer end plug 133 relative to the outer tube 131.

The support portion 1341 of the present invention cooperates with the inner wall of the outer tube 131, and has at least two mating faces disposed at intervals. The mating surface can be symmetrically disposed according to the shape of the inner wall of the outer tube 131.

The bellows 13 of the present invention is used in conjunction with a gas pressure bar 15, which can achieve a fixed height of the bellows 13. The gas pressure bar 15 includes a pressure tube 151, a piston rod 152 and a valve needle 153. When the valve needle 153 is pressed, the piston rod 152 can be extended and contracted with respect to the pressure tube 151; the valve needle 153 is not pressed, that is, the valve needle 153 is under normal pressure. The piston rod 152 cannot be expanded and contracted with respect to the pressure tube 151. The free end of the pressure tube 151 is fixedly connected to the lower end of the outer tube 131. The free end of the piston rod 152 is fixedly connected to the upper end of the inner tube 132. The fixed connection can be locked by using the nut 17, the inner tube 132 and the outer tube 131. The height change is synchronized with the change in the height of the gas pressure bar 15. When the gas pressure bar 15 is in the adjustable state, the inner tube 132 can be moved relative to the outer tube 131. When the height of the inner tube 132 is properly adjusted, the valve needle 153 is released, and the gas pressure rod 15 is The length is fixed. At this time, the heights of the corresponding inner tube 132 and outer tube 131 are fixed. This height adjustment method does not require the use of electrical energy, which saves electricity.

In order to facilitate user operation, the lifting table of the present invention comprises two telescopic tubes 13, correspondingly comprising two gas pressure rods 15. The lift table includes a wrench 16 that can simultaneously change the state of the two valve needles 153 and adjust the length of the two gas pressure bars 15. That is, a cross bar is disposed on the upper portion of the telescopic tube 13, and the wrench 16 is hingedly coupled to the cross bar; the wrench 16 is rotated to disengage or squeeze the two valve pins 153.

The lifting table of the present invention also includes a table top 11 and a stand 14; the table top 11 is placed on the table frame 12; and the stand 14 is fixed to the lower portion of the bellows 13.

The outer end plug 133 is added to the present invention. The inner tube 132 cooperates with the outer end plug 133 to telescopically move, and the inner tube 132 and the outer end plug 133 are rolling friction. An inner end plug 134 is also added, and the inner end plug 134 has a supporting surface matched with the inner wall of the outer tube 131, so that there are two sets of mating connections between the outer tube 131 and the inner tube 132, so that the lifting is more stable and smooth, and the telescopic adjustment is also more Low effort and low noise.

The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Claims

A lifting table comprising a table frame and a telescopic tube, wherein the telescopic tube carries the table frame; the telescopic tube comprises an outer tube and an inner tube; wherein the telescopic tube further comprises an outer end plug and an inner end plug The outer end plug is disposed at one end of the outer tube, the inner end plug is disposed at one end of the inner tube; and the inner tube is provided with one end of the inner end plug inserted into the outer tube The tube is provided with one end of the outer end plug;

The outer end plug has a roller body, and the roller body partially protrudes from an inner wall of the outer end plug;

The inner end plug has a support portion, and the support portion is at a periphery of the inner tube;

An outer wall of the outer end plug is fixedly connected to the outer tube, and an inner wall of the outer end plug is matched with the inner tube;

The support portion is fitted into the inner portion of the outer tube and slides along the inner portion of the outer tube.
The lift table according to claim 1, wherein the inner end plug has a roller body, and the roller body is disposed on the support portion, and the roller body partially protrudes from a surface of the support portion.
The lifting table according to claim 2, wherein the outer end plug has a ring body, the ring body has a mounting hole, and the roller body is disposed at the mounting hole; the roller body partially protrudes from the mounting body The inner surface of the ring body, the roller body is not higher than the outer surface of the ring body.
A lifting table according to claim 3, wherein said roller body is at least one, or a plurality of evenly distributed.
The lifting table according to claim 4, wherein the outer surface of the ring body is provided with a ring step, and the outer tube is butted with the ring step.
The lift table according to any one of claims 1 to 5, characterized in that the support portion has at least two mating faces that are spaced apart from the inner wall of the outer tube.
A lifting table according to any one of claims 1 to 5, comprising: a gas pressure bar comprising a pressure tube, a piston rod and a valve needle; wherein the free end of the pressure tube is fixedly connected to the outer tube At the lower end of the tube, the free end of the piston rod is fixedly coupled to the upper end of the inner tube.
The lifting table according to claim 7, wherein there are two telescopic tubes and two corresponding gas pressure rods; the lifting table includes a wrench, and the rotating wrench can change the state of the two valve needles and adjust the length of the gas pressure rod. .
The lifting table according to claim 8, wherein a cross bar is disposed on an upper portion of the telescopic tube, the wrench hinge is coupled to the cross bar; and the wrench is rotatable to be disengageable from the squeeze valve needle.
A lifting table according to claim 9, comprising a table top and a stand; said table top being placed on said table frame; said stand being fixed to a lower portion of said telescopic tube.