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Explosion-proof tray structure

A technology of tray and connection box, applied in the field of seat, can solve the problems of knee ligament injury, serious human injury, trauma and other problems

Pending Publication Date: 2018-12-18
董慧清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The lift-type office chair is a kind of chair that is often used in the office. Because it is convenient and comfortable to use, many families are also using the lift-type office chair now. The lifting mechanism of the lift-type office chair is implemented by a pneumatic rod. Filled with nitrogen, although it can prevent combustion during an explosion, but because the air pressure built into the air pressure rod is equivalent to 24 atmospheres, so once an explosion occurs, its destructive power is as strong. The tray of the existing office chair is located on the top of the air pressure rod There is a hole above. Once an explosion occurs, the air pressure and debris generated by the explosion will directly rush up, causing serious injury to the human body. In the prior art, the hole of the tray is blocked with a steel plate, although it prevents the debris and the impact force from directly rushing up. Damage to the human body, but the scattered parts will scatter from the side of the tray after being blocked by the steel plate, and the fragments scattered to the front will directly damage the legs of the human body. Since the position of the tray is close to the knee of the human body, if the scattered fragments are inserted into the knee, It is easy to cause ligament injury at the knee, causing equally significant trauma

Method used

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Experimental program
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Embodiment 1

[0022] Such as figure 1 As shown, the first embodiment of the present invention includes an upper connection plate 1 connected to the seat, a lower connection box body 2 connected to the air pressure rod, and the bottom of the lower connection box body 2 is provided with a top for connecting the air pressure rod. Connecting hole 3, the lower surface of upper connecting plate 1 is provided with an arc-shaped shielding plate 4 covering the top of connecting hole 3, and the lower connecting box body 2 is provided with a port 5 arranged toward the direction of the arc-shaped baffle plate. 5 is arranged on the bottom or side wall of the lower connection box body 2, the rear end of the upper connection plate 1 in this embodiment is the end close to the back of the chair, the front end is the opposite end, and the positive side of the arc-shaped shielding plate 4 is facing the upper connection plate 1 The rear side of the side is the side, and the back side is the opposite side. The...

Embodiment 2

[0026] Such as figure 2 As shown, the second embodiment of the present invention includes an upper connection plate 1 connected to the seat, a lower connection box body 2 connected with the air pressure rod, and the bottom of the lower connection box body 2 is provided with a top for connecting the air pressure rod. Connecting hole 3, the lower surface of upper connecting plate 1 is provided with an arc-shaped shielding plate 4 covering the top of connecting hole 3, and the lower connecting box body 2 is provided with a port 5 arranged toward the direction of the arc-shaped baffle plate. 5 is arranged on the bottom or side wall of the lower connection box body 2, the rear end of the upper connection plate 1 in this embodiment is the end close to the back of the chair, the front end is the opposite end, and the positive side of the arc-shaped shielding plate 4 is facing the upper connection plate 1 The rear side of the side is the side, and the back side is the opposite side. ...

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Abstract

The invention relates to an explosion-proof tray structure, comprising an upper connecting plate and a lower connecting box body, wherein a connecting hole is formed in the bottom of the lower connecting box body, the lower side surface of the upper connecting plate is provided with an arc-shaped shielding plate which covers the upper part of the connecting hole, and the lower connecting box bodyis provided with a through hole. The explosion-proof tray structure effectively prevents damage of fragments or other parts, produced by explosion of an air pressure rod, to the buttock and knees of ahuman body by means of cooperative use of the upper connecting plate and the arc-shaped shielding plate.

Description

technical field [0001] The invention relates to the technical field of seats, in particular to an explosion-proof tray structure. Background technique [0002] The lift-type office chair is a kind of chair that is often used in the office. Because it is convenient and comfortable to use, many families are also using the lift-type office chair now. The lifting mechanism of the lift-type office chair is implemented by a pneumatic rod. Filled with nitrogen, although it can prevent combustion during an explosion, but because the air pressure built into the air pressure rod is equivalent to 24 atmospheres, so once an explosion occurs, its destructive power is as strong. The tray of the existing office chair is located on the top of the air pressure rod There is a hole above. Once an explosion occurs, the air pressure and debris generated by the explosion will directly rush up, causing serious injury to the human body. In the prior art, the hole of the tray is blocked with a steel...

Claims

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Application Information

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IPC IPC(8): A47C3/30A47C7/00
CPCA47C3/30A47C7/00
Inventor 董慧清
Owner 董慧清