Pneumatic barstool with explosion-proof device

Abstract

The pneumatic barstool with the explosion-proof device comprises a base, a pneumatic lifting rod and a cushion, the pneumatic lifting rod comprises an outer cylinder and a movable rod, a pop-out prevention mechanism is arranged outside the movable rod, and the pop-out prevention mechanism comprises a pop-out prevention assembly and a plurality of buffering assemblies. The bulletproof assembly is used for limiting the lifting height of the movable rod, the buffering assembly is used for buffering and absorbing energy generated by explosion, the bulletproof assembly comprises a support, the support is fixedly connected with the surface of the outer cylinder, at least four limiting rods are slidably connected to the interior of the support at equal intervals, and a disc is fixedly connected to the surface of the movable rod. And the plurality of limiting rods are clamped outside the disc. The pneumatic barstool disclosed by the utility model relates to the technical field of pneumatic barstools. According to the pneumatic barstool with the explosion-proof device, the pop-up prevention assembly is arranged outside the movable rod, the movable rod is limited when the movable rod pops up, the problems that the movable rod breaks through the cushion and pops up are avoided, and the safety of the barstool in use is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic bar chair technical field, concretely is a kind of bar chair with explosion-proof device. BACKGROUND

[0002] Bar chair is initially mainly used in bar, and the shape of bar chair is similar to ordinary chair, but the seat surface is higher from ground, and the size of bar chair seat surface from ground is usually 650-900mm. Bar chair has modern sense and metal texture, and generally can rotate 360 degrees, and bar chair usually adopts pneumatic lifting, and the basic principle of lifting is that high-pressure nitrogen gas is filled in the inside, since through-hole is arranged in the piston, gas pressure at both ends of piston is equal, and the sectional area of both sides of piston is different, one end is connected with piston rod and the other end is not, and handle is adjusted, under the action of gas pressure, pressure to the side with small sectional area, i.e. the elastic force of gas pressure rod, person sits on and gives pressure to lifting shaft, and lifting shaft is gently lowered, and speed is uniform, and can be lowered to the lowest point, and lifting shaft is lifted to the highest point without external force.

[0003] The patent publication No. "CN222074867U" discloses a bar chair with explosion-proof device, which comprises a seat, a base and a pneumatic lifting rod arranged between the seat and the base, and an explosion-proof device is arranged between the seat and the pneumatic lifting rod. The explosion-proof device comprises a strike-through prevention plate and a protective cover fixed to the bottom of the seat, a connecting plate fixed to the telescopic end of the pneumatic lifting rod, a support arm fixed between the connecting plate and the strike-through prevention plate, and a buffer fixed to the bottom of the strike-through prevention plate.

[0004] As shown in the above-mentioned technology, if the pneumatic bar chair has problems such as too thin or uneven thickness of the gas pressure rod pipe wall, substandard filling of nitrogen gas or sealing problem of the gas pressure rod, the gas pressure cylinder will explode, the movable rod in the pneumatic lifting rod may be ejected from the sleeve, and the problem of striking through the cushion may occur, and the ejection of the movable rod is also prone to accidents. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a bar chair with explosion-proof device, which solves the problem of ejection of the movable rod when the existing pneumatic bar chair explodes.

[0006] In order to achieve the above object, the utility model discloses the following technical schemes to realize: a kind of pneumatic bar chair with explosion-proof device including base, pneumatic lifting rod and cushion, the pneumatic lifting rod includes outer tube and movable rod, the outside of movable rod is provided with anti-ejection mechanism, the anti-ejection mechanism includes anti-ejection component and multiple buffer components, the anti-ejection component is positioned to the height that movable rod can rise, the buffer component is used to buffer the capacity generated by explosion energy absorption, the anti-ejection component includes support, the surface of support and outer tube is fixedly connected, at least four limit rods are slidably connected at equal distance in the inside of support, the surface of movable rod is fixedly connected with disc, multiple limit rods are held in the outside of disc.

[0007] Preferably, the limit rod is Z-shaped, the lower end of the limit rod is a horizontal plate, and the height of the movable rod is blocked by the cooperation of the horizontal plate of the limit rod and the support when the movable rod is ejected, the upper end of the limit rod is U-shaped, and the U-shaped structure is held outside the disc.

[0008] Preferably, multiple buffer components are installed at equal distance on the support, the buffer component includes a T-shaped rod, the T-shaped rod is slidably connected with the bottom of the support, and the T-shaped rod is aligned with the horizontal plate of the limit rod, the T-shaped rod penetrates the support and extends above the support, and a buffer spring is sleeved on the surface of the T-shaped rod below the support.

[0009] Preferably, one end of the buffer spring is fixedly connected with the bottom of the support, and the other end of the buffer spring is fixedly connected with the end of the T-shaped rod.

[0010] Preferably, the top of the support is fixedly connected with a threaded base, the surface of the threaded base is threadedly connected with a protective cylinder, the part of the T-shaped rod penetrating the support and extending above the support is located inside the protective cylinder, and one end of the T-shaped rod located inside the protective cylinder is fixedly connected with a push block.

[0011] Preferably, the top of the protective cylinder is fixedly connected with a cover plate through bolts, the bottom of the cover plate is welded with an energy-absorbing piece, and the energy-absorbing piece is composed of multiple groups of metal sheets, each group of metal sheets is composed of two arc-shaped plates.

[0012] Beneficial effects

[0013] The utility model provides a kind of pneumatic bar chair with explosion-proof device.Compared with prior art, it has the following beneficial effects:

[0014] 1. The bar chair with the anti-explosion device, the anti-explosion component is used for limiting the height of the movable rod, the buffer component is used for buffering the energy generated by the explosion, the anti-explosion component comprises a support, the support is fixedly connected with the surface of the outer cylinder, the anti-explosion component is arranged outside the movable rod, the movable rod is limited when the movable rod is ejected, the problem that the movable rod penetrates the cushion and is ejected is avoided, and the safety of the bar chair during use is improved.

[0015] 2. The bar chair with the anti-explosion device, the buffer components are equidistantly arranged on the support, the buffer component comprises a T-shaped rod, the T-shaped rod is slidably connected with the bottom of the support, and the T-shaped rod is aligned with the horizontal plate portion of the limiting rod, when the movable rod is ejected due to explosion, the limiting rod is driven to move upwards and collides with the T-shaped rod in the buffer component, the T-shaped rod extrudes the energy absorption piece, the energy absorption piece is deformed to absorb the energy generated by the explosion, and the danger caused by the explosion is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the appearance of the utility model;

[0017] Figure 2 It is a partial schematic view of the utility model;

[0018] Figure 3 It is a schematic view of the anti-ejection mechanism of the utility model;

[0019] Figure 4 It is a schematic view of the buffer component of the utility model.

[0020] In the drawing: 1, base; 2, pneumatic lifting rod; 21, outer cylinder; 22, movable rod; 3, cushion; 4, anti-ejection component; 41, support; 42, limiting rod; 43, disc; 5, buffer component; 51, T-shaped rod; 52, buffer spring; 53, threaded base; 54, protective cylinder; 55, cover plate; 56, energy absorption piece; 57, push block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 The bar chair with the anti-explosion device provides two technical solutions:

[0023] The first embodiment comprises a base 1, a pneumatic lifting rod 2 and a cushion 3. The pneumatic lifting rod 2 comprises an outer cylinder 21 and a movable rod 22. The movable rod 22 is externally provided with a bullet-proof mechanism. The bullet-proof mechanism comprises a bullet-proof assembly 4 and a plurality of buffer assemblies 5.

[0024] The bullet-proof assembly 4 is used to limit the height of the movable rod 22. The buffer assembly 5 is used to buffer the energy generated by the explosion. The bullet-proof assembly 4 comprises a support 41 fixedly connected to the surface of the outer cylinder 21. At least four limiting rods 42 are slidably connected to the inside of the support 41. A disc 43 is fixedly connected to the surface of the movable rod 22. The plurality of limiting rods 42 are clamped to the outside of the disc 43. The limiting rods 42 are Z-shaped. The lower end of the limiting rod 42 is a horizontal plate. When the movable rod 22 is ejected, the horizontal plate of the limiting rod 42 cooperates with the support 41 to block the height of the movable rod 22. The upper end of the limiting rod 42 is U-shaped and clamped to the outside of the disc 43.

[0025] The bullet-proof assembly 4 is arranged on the outside of the movable rod 22. When the movable rod 22 is ejected, the movable rod 22 is limited to avoid the problem of the movable rod 22 penetrating the cushion 3 and being ejected. The safety of the bar chair is improved.

[0026] The second embodiment is mainly different from the first embodiment in that the plurality of buffer assemblies 5 are equidistantly installed on the support 41. The buffer assembly 5 comprises a T-shaped rod 51 slidably connected to the bottom of the support 41. The T-shaped rod 51 is aligned with the horizontal plate of the limiting rod 42. The T-shaped rod 51 penetrates the support 41 and extends above the support 41. A buffer spring 52 is sleeved on the surface of the support 41 below the T-shaped rod 51. One end of the buffer spring 52 is fixedly connected to the bottom of the support 41. The other end of the buffer spring 52 is fixedly connected to the end of the T-shaped rod 51. A threaded base 53 is fixedly connected to the top of the support 41. A protective cylinder 54 is threadedly connected to the surface of the threaded base 53. The part of the T-shaped rod 51 penetrating the support 41 and extending above the support 41 is located in the inside of the protective cylinder 54. A push block 57 is fixedly connected to the end of the T-shaped rod 51 located in the inside of the protective cylinder 54. A cover plate 55 is fixedly connected to the top of the protective cylinder 54 by bolts. An energy-absorbing piece 56 is fixedly welded to the bottom of the cover plate 55. The energy-absorbing piece 56 is composed of a plurality of metal sheets. Each metal sheet is composed of an upper arc-shaped plate and a lower arc-shaped plate.

[0027] When the movable rod 22 is ejected due to an explosion, the limiting rod 42 is driven to move upward and collide with the T-shaped rod 51 in the buffer assembly 5. The T-shaped rod 51 extrudes the energy-absorbing piece 56. The energy-absorbing piece 56 is deformed to absorb the energy generated by the explosion. The danger of the explosion is further reduced.

[0028] When the explosion occurs, the movable rod 22 is ejected outward, and when the movable rod 22 is ejected, the movable rod 22 drives the limiting rod 42 to move up and down, and when the horizontal plate of the limiting rod 42 contacts the bottom of the T-shaped rod 51, the limiting rod 42 is blocked from continuing to move upward, that is, the movable rod 22 is prevented from being ejected, and when the horizontal plate of the limiting rod 42 contacts the T-shaped rod 51, the T-shaped rod 51 is pushed to move upward, the T-shaped rod 51 moves and makes the push block 57 contact the energy-absorbing piece 56, so that the energy-absorbing piece 56 is compressed and deformed, thereby absorbing the energy generated by the explosion.

[0029] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace, and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pneumatic bar stool with an explosion-proof device, comprising a base (1), a pneumatic lifting rod (2), and a seat cushion (3), characterized in that: The pneumatic lifting rod (2) includes an outer cylinder (21) and a movable rod (22). An anti-ejection mechanism is provided on the outside of the movable rod (22). The anti-ejection mechanism includes an anti-ejection component (4) and multiple buffer components (5). The anti-ejection component (4) is used to limit the height that the movable rod (22) can rise. The buffer components (5) are used to buffer and absorb the energy generated by the explosion. The anti-ejection component (4) includes a bracket (41). The bracket (41) is fixedly connected to the surface of the outer cylinder (21). At least four limiting rods (42) are equidistantly slidably connected inside the bracket (41). A disc (43) is fixedly connected to the surface of the movable rod (22). Multiple limiting rods (42) are held on the outside of the disc (43).

2. A pneumatic bar stool with an explosion-proof device according to claim 1, characterized in that: The limiting rod (42) is Z-shaped, and the lower end of the limiting rod (42) is a horizontal plate. When the movable rod (22) pops out, the horizontal plate of the limiting rod (42) and the bracket (41) cooperate to block the height of the movable rod (22) popping out. The upper end of the limiting rod (42) is U-shaped and is held on the outside of the disc (43) by the U-shaped structure.

3. A pneumatic bar stool with an explosion-proof device according to claim 1, characterized in that: Multiple buffer components (5) are installed at equal intervals on the bracket (41). Each buffer component (5) includes a T-shaped rod (51). The T-shaped rod (51) is slidably connected to the bottom of the bracket (41), and the T-shaped rod (51) is aligned with the horizontal plate portion of the limiting rod (42). The T-shaped rod (51) passes through the bracket (41) and extends above the bracket (41). A buffer spring (52) is sleeved on the surface of the T-shaped rod (51) located below the bracket (41).

4. A pneumatic bar stool with an explosion-proof device according to claim 3, characterized in that: One end of the buffer spring (52) is fixedly connected to the bottom of the bracket (41), and the other end of the buffer spring (52) is fixedly connected to the end of the T-shaped rod (51).

5. A pneumatic bar stool with an explosion-proof device according to claim 3, characterized in that: The top of the bracket (41) is fixedly connected to a threaded base (53), and a protective cylinder (54) is threadedly connected to the surface of the threaded base (53). The part of the T-shaped rod (51) that passes through the bracket (41) and extends to the top of the bracket (41) is inside the protective cylinder (54). A push block (57) is fixedly connected to one end of the T-shaped rod (51) inside the protective cylinder (54).

6. A pneumatic bar stool with an explosion-proof device according to claim 5, characterized in that: The top of the protective cylinder (54) is fixedly connected to a cover plate (55) by bolts. The bottom of the cover plate (55) is welded and fixed with an energy-absorbing component (56). The energy-absorbing component (56) is composed of multiple sets of metal sheets, each set of metal sheets consisting of two upper and lower arc plates.

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