Air rod for heavy chair

Abstract

The utility model provides an air rod for a heavy chair, which is used for solving the technical problem that the damage of the air rod is accelerated due to overlarge stress of the air rod when a person with heavy weight uses the air rod. The air rod for the heavy chair comprises an outer pipe, the interior of the outer pipe is of a hollow structure, and an opening is formed in the upper end of the outer pipe; the interior of the inner pipe is of a hollow structure, the inner pipe is arranged in the outer pipe in a lifting mode, and one end of the inner pipe upwards extends out of the outer pipe; the core rod penetrates through the outer tube and the inner tube from bottom to top; a closing block; the clamping block is fixedly arranged at the end, located outside the outer pipe, of the core rod, and the clamping block abuts against the bottom end of the outer pipe. A first stress plate; a second stress plate; due to the multiple telescopic springs, after the lifting air rod is installed, the stress condition of the telescopic air rod can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of gas rods, in particular to a gas rod for heavy chairs. Background Art

[0002] The gas rod is a mechanism that adjusts height by using air pressure. The cylinder is filled with compressed gas, which generates an outward force that pushes the gas rod to extend outward.

[0003] The pressure-bearing capacity of a general gas rod cannot be adjusted after installation. When a heavier person uses the gas rod, directly using a reinforced gas rod material will increase the cost and make it more difficult for a lighter person to use it. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a gas rod for a heavy chair, which is used to solve the technical problem that when a heavy person uses the gas rod, the gas rod will be subjected to excessive force, thereby accelerating damage to the gas rod.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A gas rod for a heavy chair, comprising:

[0007] An outer tube, wherein the interior of the outer tube is a hollow structure and the upper end of the outer tube is open;

[0008] An inner tube, the inner part of which is a hollow structure, the inner tube is lifted and arranged in the outer tube, and one end of the inner tube extends upwardly out of the outer tube;

[0009] A core rod, the core rod passing through the outer tube and the inner tube from bottom to top;

[0010] A closing block, the closing block is fixedly mounted on one end of the mandrel passing through the inner tube, and the closing block is in contact with the inner wall of the inner tube;

[0011] A clamping block, the clamping block is fixedly arranged at one end of the mandrel outside the outer tube, and the clamping block abuts against the bottom end of the outer tube;

[0012] A first force-bearing plate, the first force-bearing plate is fixedly arranged at one end of the inner tube extending out of the outer tube;

[0013] A second force-bearing plate, wherein the second force-bearing plate is fixedly arranged on the outer tube, and the first force-bearing plate and the second force-bearing plate are opposite to each other in upper and lower directions;

[0014] A plurality of telescopic springs are arranged between the first force-bearing plate and the second force-bearing plate.

[0015] Working principle:

[0016] Install the lifting gas rod on the seat. When a person sits on the seat and drives the seat cushion to move downward, the seat cushion compresses the lifting gas rod, that is, the inner tube moves downward along the length direction of the outer tube. When adjustment is needed, adjust the number of telescopic springs between the first force plate and the second force plate.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The lifting gas rod is installed on the seat. When a person sits on the seat and drives the seat cushion to move downward, the seat cushion compresses the lifting gas rod, that is, the inner tube moves downward along the length direction of the outer tube. When adjustment is needed, the number of telescopic springs is adjusted between the first force plate and the second force plate. By adjusting the number of springs, the user's weight can be supported and the burden on the lifting gas rod can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the cross-sectional structure of an embodiment of the utility model.

[0020] In the above drawings: 10, clamping block; 11, threaded hole; 12, screw; 13, second hook; 14, core rod; 15, rubber block; 16, closing block; 17, inner tube; 18, outer tube; 19, telescopic plate; 20, first hook; 21, force block; 22, first force plate; 23, first limiting block; 24, first connecting piece; 25, second limiting block; 26, second connecting piece; 27, telescopic spring; 28, second force plate; 29, installation section; 30, force section. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Example:

[0023] like Figure 1 As shown, a gas rod for a heavy chair comprises:

[0024] The outer tube 18 is a hollow structure inside and has an opening at the upper end. The outer tube 18 is composed of a mounting section 29 and a force-bearing section 30. The mounting section 29 is arranged below the force-bearing section 30. When the gas rod is installed, the mounting section 28 passes through the chair leg, so that the force-bearing section 30 is engaged with the chair leg;

[0025] An inner tube 17, wherein the inner tube 17 is hollow in structure, and the inner tube 17 is lifted and lowered in the outer tube 18, and one end of the inner tube 17 extends upwardly out of the outer tube 18;

[0026] The positional relationship between the outer tube 18 and the inner tube 17 can be adjusted by a switch. This technology is a conventional technical means and is therefore not described in detail in the specification.

[0027] A core rod 14, the core rod 14 passes through the outer tube and the inner tube 17 from bottom to top;

[0028] A closing block 16, wherein the closing block 16 is fixedly mounted on one end of the mandrel 14 passing through the inner tube 17, and the closing block 16 is in close contact with the inner wall of the inner tube 17;

[0029] A clamping block 10, wherein the clamping block 10 is fixedly mounted at one end of the mandrel 14 outside the outer tube 18, and the clamping block 10 abuts against the bottom end of the outer tube 18;

[0030] A first force-bearing plate 22, wherein the first force-bearing plate 22 is fixedly mounted on one end of the inner tube 17 extending out of the outer tube 18;

[0031] A second force-bearing plate 28, wherein the second force-bearing plate 28 is fixedly mounted on the outer tube 18, and the first force-bearing plate 22 and the second force-bearing plate 28 are opposite to each other in vertical direction;

[0032] A plurality of telescopic springs 27, wherein the telescopic springs 27 are arranged between the first force-bearing plate 22 and the second force-bearing plate 28, and the telescopic springs 27 include two. When the inner tube 17 moves upward to the maximum distance, the telescopic springs 27 are in a normal state;

[0033] The lifting gas rod is installed on the seat. When a person sits on the seat and drives the seat cushion to move downward, the seat cushion compresses the lifting gas rod, that is, the inner tube 17 moves downward along the length direction of the outer tube 18. When adjustment is needed, the number of telescopic springs 27 is adjusted between the first force plate 22 and the second force plate 28. By adjusting the number of springs, the force required by the user can be adjusted to meet the user's usage needs.

[0034] like Figure 1 As shown, a rubber block 15 is fixedly disposed at the bottom end of the closing block 16 , and the rubber block 15 is in contact with the inner wall of the inner tube 17 on all sides. The rubber block 15 is in contact with the inner tube 17 better, and can provide a better sealing effect.

[0035] like Figure 1 As shown, a plurality of force blocks 21 are rotatably provided at the bottom end of the first force-bearing plate 22, and the force blocks 21 include two blocks. A first hook 20 is fixedly provided at the bottom end of each of the force-bearing blocks 21. A plurality of threaded holes 11 are opened through the second force-bearing plate 28 from top to bottom, and a screw 12 is connected to the inner thread of the threaded hole 11. The screw 12 drives the second hook 13 to rotate, so that the position of the second hook 13 can move up and down relative to the second force-bearing plate 28, thereby adjusting the telescopic amount of the telescopic spring 27. A second hook 13 is fixedly provided at the top end of the screw 12, and the second hook 13 corresponds to the first hook 20 one by one.

[0036] like Figure 1 As shown, the telescopic spring 27 is arranged one-to-one between the first hook 20 and the second hook 13, and the telescopic spring 27 is arranged between the first hook 20 and the second hook 13 corresponding to each other. When the inner tube 17 moves to the top, the telescopic spring 27 is in a normal state.

[0037] like Figure 1 As shown, two first connecting members 24 are sleeved at both ends of the first force-bearing plate 22, and two second connecting members 26 are sleeved at both ends of the second force-bearing plate 28. A telescopic plate 19 is provided between the corresponding first connecting members 24 and the second connecting members 26. The telescopic plate 19 is arranged on the outside of the corresponding telescopic spring 27 to play the role of shielding the telescopic spring 27. Two groups of first limiting blocks 23 are provided at the top of the first force-bearing plate 22, and each group of the first limiting blocks 23 includes two blocks. The first connecting member 24 is clamped between the two first limiting blocks 23 in the same group. Two groups of second limiting blocks 25 are provided at the bottom of the second force-bearing plate 28, and each group of the second limiting blocks 25 includes two blocks. The second connecting member 26 is clamped between the two second limiting blocks 25 in the same group.

[0038] Working principle:

[0039] The lifting gas rod is installed on the seat so that the bottom end of the outer tube 18 is fixed to the chair leg, and the top end of the inner tube 17 is rotatably connected to the seat board. When the user sits on the seat, the seat board moves downward by his own strength, and the seat board drives the inner tube 17 to move downward;

[0040] When adjustment is needed, the telescopic spring 27 is hung between the first hook 20 and the second hook 13, and further adjustment can be made by rotating the screw 12, which stretches the spring 27 through the second hook 13. The telescopic spring 27 reduces the force on the lifting gas rod.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A gas rod for a heavy chair, characterized in that: include: An outer tube (18), the interior of the outer tube (18) is a hollow structure, and the upper end of the outer tube (18) is open; An inner tube (17), the interior of the inner tube (17) is a hollow structure, the inner tube (17) is arranged in a lifting manner in the outer tube (18), and one end of the inner tube (17) extends upward from the outer tube (18); A core rod (14), the core rod (14) passing through the outer tube and the inner tube (17) from bottom to top; A closing block (16), the closing block (16) being fixedly mounted on one end of the core rod (14) passing through the inner tube (17), and the closing block (16) being in contact with the inner wall of the inner tube (17); A clamping block (10), the clamping block (10) being fixedly arranged at one end of the core rod (14) outside the outer tube (18), and the clamping block (10) abuts against the bottom end of the outer tube (18); A first force-bearing plate (22), the first force-bearing plate (22) being fixedly mounted on one end of the inner tube (17) extending out of the outer tube (18); A second force-bearing plate (28), wherein the second force-bearing plate (28) is fixedly mounted on the outer tube (18), and the first force-bearing plate (22) and the second force-bearing plate (28) are vertically opposed to each other; A plurality of telescopic springs (27), wherein the telescopic springs (27) are arranged between the first force-bearing plate (22) and the second force-bearing plate (28).

2. The gas rod for heavy chair according to claim 1, characterized in that: A rubber block (15) is fixedly arranged at the bottom end of the closing block (16), and the rubber block (15) is in contact with the inner wall of the inner tube (17) on all sides.

3. The gas rod for heavy chair according to claim 1, characterized in that: A plurality of force-bearing blocks (21) are rotatably provided at the bottom end of the first force-bearing plate (22), and a first hook (20) is fixedly provided at the bottom end of each force-bearing block (21).

4. The gas rod for heavy chairs according to claim 3, characterized in that: The second force-bearing plate (28) is provided with a plurality of threaded holes (11) extending therethrough, a screw rod (12) is internally threadedly connected to the threaded hole (11), a second hook (13) is fixedly provided at the top end of the screw rod (12), and the second hook (13) corresponds to the first hook (20) one by one in the upper and lower directions.

5. The gas rod for heavy chairs according to claim 4, characterized in that: The telescopic springs (27) are arranged in a one-to-one correspondence between the first hook (20) and the second hook (13).

6. The gas rod for heavy chair according to claim 1, characterized in that: Two first connecting members (24) are sleeved at both ends of the first force-bearing plate (22), two second connecting members (26) are sleeved at both ends of the second force-bearing plate (28), and a telescopic plate (19) is provided between the corresponding first connecting members (24) and the second connecting members (26).

7. The gas rod for heavy chair according to claim 6, characterized in that: Two groups of first limiting blocks (23) are provided at the top of the first force-bearing plate (22), each group of the first limiting blocks (23) comprises two blocks, and the first connecting member (24) is clamped between the two first limiting blocks (23) of the same group.

8. The gas rod for heavy chairs according to claim 6, characterized in that: Two groups of second limiting blocks (25) are provided at the bottom end of the second force-bearing plate (28), each group of the second limiting blocks (25) comprises two blocks, and the second connecting member (26) is clamped between the two second limiting blocks (25) of the same group.

9. The gas rod for heavy chair according to claim 1, characterized in that: The telescopic springs (27) include two.

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