Air pressure rod of swivel chair

Abstract

The utility model provides a swivel chair air pressure bar and relates to the field of furniture. The swivel chair air pressure bar comprises a connecting plate, an air pressure bar body is fixedly installed in the middle of the upper surface of the connecting plate, telescopic rods are fixedly installed on the portions, located on the two sides of the air pressure bar body, of the upper surface of the connecting plate, the free end of the air pressure bar body is fixedly sleeved with a clamping sleeve, a lifting frame is clamped to the outer ring of the clamping sleeve, and the two ends of the lifting frame are fixedly connected with the free ends of the telescopic rods respectively. A supporting ring is fixedly installed at the top end of the lifting frame, and a fixing plate is rotationally connected to the upper portion of the supporting ring in a clamped mode. According to the air pressure bar of the swivel chair, rotation of the air pressure bar can be limited by arranging the lifting frame and the symmetrical telescopic rods, a supporting ring is fixedly installed at the top end of the lifting frame, a fixing plate is rotationally clamped to the upper portion of the supporting ring, and by arranging the supporting ring and the fixing plate, the rotating part of the air pressure bar can rotate through rotating friction between the free end and the fixed end; and the friction between the supporting ring and the fixing plate is transferred, so that the probability of explosion of the air pressure rod due to friction can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a swivel chair gas pressure rod. Background Art

[0002] A swivel chair is a type of computer chair or office chair, and is a chair whose seat can be rotated. The reason why a swivel chair can be raised and lowered is that there is a gas pressure rod in the lifting device. The gas pressure rod is an elastic element that uses gas and liquid as working medium and can perform functions such as support, cushioning, braking, height adjustment and angle adjustment.

[0003] Common pneumatic rods are prone to breakage due to frictional heat generated during rotation. At the same time, after breaking, the bottom end of the pneumatic rod is easily inserted into the user's body. In order to avoid accidents, strict requirements are required in the production process of pneumatic rods, but users' panic cannot be avoided. Therefore, a pneumatic rod is needed that can reduce the probability of breakage and avoid injuring the operator even if it breaks. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a swivel chair gas pressure rod, which solves the problems raised in the background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a swivel chair pneumatic rod, including a connecting plate, a pneumatic rod is fixedly installed in the middle of the upper surface of the connecting plate, telescopic rods are fixedly installed on both sides of the upper surface of the connecting plate, the free end of the pneumatic rod is fixedly sleeved with a clamping sleeve, the outer ring of the clamping sleeve is clamped with a lifting frame, the two ends of the lifting frame are respectively fixedly connected to the free ends of the telescopic rod, a supporting ring is fixedly installed on the top of the supporting frame, and a fixed plate is rotatably clamped above the support ring.

[0006] Preferably, mounting holes are provided on the edge of the fixing plate, and the mounting holes are distributed in a ring array.

[0007] Preferably, the length of the fixed end of the telescopic rod is greater than the length of the fixed end of the gas pressure rod, and the gas pressure rod is concentric with the fixed plate.

[0008] Preferably, an annular groove is formed on the outer ring of the ferrule, and the supporting frame is rotatably engaged in the inner part of the annular groove.

[0009] Preferably, the cross-sectional shape of the lifting frame is a "concave" shape, and the two protruding ends of the lifting frame are fixedly connected to the telescopic rod.

[0010] Preferably, a control end is provided at the top of the pneumatic rod, and torsion spring coils are fixedly installed at both ends of the inner side of the lifting frame. The two torsion spring coils are fixedly connected by a central axis, and an extrusion block is fixedly installed on the outer surface of the central axis above the control end. Sliding limit blocks are fixedly installed at both ends of the outer surface of the central axis, and the two sliding limit blocks are slidably connected by a handle.

[0011] Preferably, the free end of the pneumatic rod is located below the ferrule and is fixedly sleeved with a ratchet ring, one side of the ratchet ring is meshed with a ratchet plate, and the ratchet plate is fixedly connected to the handle via a connecting block.

[0012] Preferably, the outer ring of the support ring is provided with a limit ring, the upper end of the lifting frame is provided with a notch, and the bottom end of the fixed plate is fixedly provided with a limit sleeve rotatably connected to the limit ring and the notch.

[0013] The utility model has the following beneficial effects:

[0014] The swivel chair gas pressure rod can limit the rotation of the gas pressure rod by arranging a lifting frame and a symmetrical telescopic rod. A support ring is fixedly installed on the top of the lifting frame, and a fixing plate is rotatably clamped on the upper side of the support ring. By arranging the support ring and the fixing plate, the rotating part of the gas pressure rod can be transferred from the rotational friction between the free end and the fixed end to the friction between the support ring and the fixing plate, thereby reducing the probability of the gas pressure rod exploding due to friction.

[0015] The length of the fixed end of the telescopic rod of the swivel chair gas rod is greater than that of the fixed end of the gas rod, and the gas rod is concentric with the fixed plate. Through such an arrangement, the telescopic rod can still support the seat after the gas rod ruptures, thereby preventing the gas rod from being inserted into the user's body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection of the lifting frame of the utility model;

[0018] Figure 3 This is a schematic diagram of the handle connection of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection of the fixed plate of the utility model.

[0020] Among them, connecting plate-1, pneumatic rod-2, telescopic rod-3, clamping sleeve-4, lifting frame-5, support ring-6, fixing plate-7, mounting hole-8, ring groove-9, control end-10, torsion spring coil-11, center axis-12, extrusion block-13, sliding limit block-14, handle-15, ratchet ring-16, ratchet plate-17, connecting block-18, limit ring-19, limit sleeve-20. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model embodiment provides a swivel chair gas pressure rod:

[0023] Embodiment 1, as Figure 1-4 As shown, it includes a connecting plate 1, a gas pressure rod 2 is fixedly installed in the middle of the upper surface of the connecting plate 1, and telescopic rods 3 are fixedly installed on both sides of the upper surface of the connecting plate 1 on the gas pressure rod 2. The length of the fixed end of the telescopic rod 3 is greater than the length of the fixed end of the gas pressure rod 2, and the gas pressure rod 2 is concentric with the fixed plate 7. Through such an arrangement, the telescopic rod 3 can still support the seat after the gas pressure rod 2 is broken, thereby preventing the gas pressure rod 2 from being inserted into the user's body.

[0024] The free end of the pneumatic rod 2 is fixedly sleeved with a clamping sleeve 4, the outer ring of the clamping sleeve 4 is clamped with a lifting frame 5, the outer ring of the clamping sleeve 4 is provided with an annular groove 9, and the lifting frame 5 is rotatably clamped inside the annular groove 9. This arrangement can ensure that the pneumatic rod 2 can move up and down synchronously and rotate itself at the same time.

[0025] The two ends of the lifting frame 5 are fixedly connected to the free ends of the telescopic rod 3 respectively. The cross-sectional shape of the lifting frame 5 is a "concave" shape. The two protruding ends of the lifting frame 5 are fixedly connected to the telescopic rod 3. Such an arrangement can ensure that the device is evenly stressed.

[0026] By setting up a lifting frame 5 and a symmetrical telescopic rod 3, the rotation of the pneumatic rod 2 can be limited. A support ring 6 is fixedly installed on the top of the lifting frame 5, and a fixed plate 7 is rotatably clamped on the top of the support ring 6. By setting up the support ring 6 and the fixed plate 7, the rotating part of the pneumatic rod 2 can be transferred from the rotational friction between the free end and the fixed end to the friction between the support ring 6 and the fixed plate 7, thereby reducing the probability of the pneumatic rod 2 exploding due to friction. The edge of the fixed plate 7 is provided with mounting holes 8, and the mounting holes 8 are distributed in a circular array. Such a setting can facilitate the installation of the fixed plate 7. A limiting ring 19 is provided on the outer ring of the support ring 6, a notch is provided on the upper end of the lifting frame 5, and a limiting sleeve 20 rotatably connected to the limiting ring 19 and the notch is fixedly installed on the bottom end of the fixed plate 7.

[0027] A control end 10 is provided at the top of the pneumatic rod 2, and torsion spring coils 11 are fixedly installed at both ends of the inner side of the lifting frame 5. The two torsion spring coils 11 are fixedly connected by a central axis 12. An extrusion block 13 is fixedly installed on the outer surface of the central axis 12 above the control end 10. Sliding limit blocks 14 are fixedly installed at both ends of the outer surface of the central axis 12. The two sliding limit blocks 14 are slidably connected by a handle 15. The rotation of the handle 15 can drive the extrusion block 13 to squeeze the control end 10, thereby adjusting the pneumatic rod 2.

[0028] The free end of the pneumatic rod 2 is located below the clamping sleeve 4 and is fixedly sleeved with a ratchet ring 16, one side of the ratchet ring 16 is meshed with a ratchet plate 17, and the ratchet plate 17 and the handle 15 are fixedly connected by a connecting block 18. Through such an arrangement, when the handle is pulled out, the pneumatic rod 2 itself can be driven to rotate by utilizing the cooperation of the ratchet plate 17 and the ratchet ring 16, thereby avoiding continuous wear at the same position during the lifting process.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A swivel chair gas pressure rod, comprising a connecting plate (1), characterized in that: A gas pressure rod (2) is fixedly mounted in the middle of the upper surface of the connecting plate (1); telescopic rods (3) are fixedly mounted on both sides of the gas pressure rod (2) on the upper surface of the connecting plate (1); a clamping sleeve (4) is fixedly sleeved on the free end of the gas pressure rod (2); a lifting frame (5) is clamped on the outer ring of the clamping sleeve (4); and both ends of the lifting frame (5) are fixedly connected to the free ends of the telescopic rod (3) respectively; A support ring (6) is fixedly mounted on the top of the lifting frame (5), and a fixing plate (7) is rotatably clamped on the top of the support ring (6).

2. The swivel chair gas pressure rod according to claim 1, characterized in that: The edge of the fixing plate (7) is provided with mounting holes (8), and the mounting holes (8) are distributed in a circular array.

3. The swivel chair gas pressure rod according to claim 1, characterized in that: The length of the fixed end of the telescopic rod (3) is greater than the length of the fixed end of the gas pressure rod (2), and the gas pressure rod (2) is concentric with the fixed plate (7).

4. The swivel chair gas pressure rod according to claim 1, characterized in that: The outer ring of the clamping sleeve (4) is provided with an annular groove (9), and the lifting frame (5) is rotatably clamped inside the annular groove (9).

5. The swivel chair gas pressure rod according to claim 1, characterized in that: The cross-sectional shape of the lifting frame (5) is a "concave" shape, and the two protruding ends of the lifting frame (5) are fixedly connected to the telescopic rod (3).

6. The swivel chair gas pressure rod according to claim 1, characterized in that: The top of the gas pressure rod (2) is provided with a control end (10), and torsion spring coils (11) are fixedly installed at both ends of the inner side of the lifting frame (5), and the two torsion spring coils (11) are fixedly connected via a central axis (12), and an extrusion block (13) is fixedly installed on the outer surface of the central axis (12) above the control end (10), and sliding limit blocks (14) are fixedly installed at both ends of the outer surface of the central axis (12), and the two sliding limit blocks (14) are slidingly connected via a handle (15).

7. The swivel chair gas pressure rod according to claim 6, characterized in that: The free end of the gas pressure rod (2) is located below the clamping sleeve (4) and is fixedly sleeved with a ratchet ring (16), one side of the ratchet ring (16) is meshed with a ratchet plate (17), and the ratchet plate (17) and the handle (15) are fixedly connected via a connecting block (18).

8. The swivel chair gas pressure rod according to claim 1, characterized in that: The outer ring of the support ring (6) is provided with a limit ring (19), the upper end of the lifting frame (5) is provided with a notch, and the bottom end of the fixed plate (7) is fixedly provided with a limit sleeve (20) rotatably connected to the limit ring (19) and the notch.

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