CN209833431U

CN209833431U - Explosion-proof seat

Info

Publication number: CN209833431U
Application number: CN201920168490.4U
Authority: CN
Inventors: 颜煜; 钱勇; 乐伟
Original assignee: Hunan Magic Armor Mechanical And Electrical Technology Co Ltd
Current assignee: Hunan Mokai Intelligent Technology Co., Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2019-12-24
Anticipated expiration: 2029-01-30

Abstract

The utility model discloses an explosion-proof seat, including the seatpad skeleton, the rear end of seatpad skeleton is connected with the lower extreme of back skeleton, and the upper end of back skeleton is connected with the lower extreme of headrest skeleton, a serial communication port, the front end of seatpad skeleton be equipped with the foot and hold in the palm the sub-assembly, the both sides of the lower extreme of back skeleton all are equipped with the slide rail, go up the slide rail and be used for fixing the lower slide rail sliding connection of one side in the automobile body, be fixed with the excellent lower fixed bolster of energy-absorbing on the back skeleton, the excellent lower fixed bolster of energy-absorbing and the excellent lower extreme fixed connection of energy-absorbing, the excellent upper end of energy-absorbing and fix the excellent fixed bolster. The utility model discloses a seat simple structure, simple to operate also can install application range extensively in narrow and small space.

Description

Explosion-proof seat

Technical Field

The utility model relates to an explosion-proof seat belongs to seat technical field in the car.

Background

The seats on the side row of the common vehicle are not provided with shockproof equipment, so that when violent vibration occurs, the human body can be greatly damaged, and certain special vehicles need the seats with the shockproof and explosion-proof equipment. Some shockproof and explosion-proof seats are arranged on a bottom plate of the vehicle, and then energy absorption pipes are arranged on the seats; there are also some of them in which a seat is suspended on the top of a vehicle, such as a vehicle thunderstorm seat disclosed in publication No. CN103661028A, which is complicated in structure and is restricted in movement in the up and down direction by a lower mounting part mounted on the floor of the vehicle and a main lever, but a gap to be reserved between the lower mounting part and the main lever is not easily controlled, and the main lever on the top thereof is too long to be conveniently disposed in a narrow space. In addition, although both seats can protect the body of the passenger, the legs and feet of the seat are placed on the bottom plate of the vehicle, and when the bottom of the vehicle is impacted violently, the impact force can still cause damage to the legs and feet, and even the seat is disabled.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the problem of how to reduce or avoid the human body (especially legs and feet) damage on the seat when the bottom of the automobile seat is impacted is solved.

In order to solve the technical problem, the technical scheme of the utility model provides an explosion-proof seat, including the seatpad skeleton, the rear end of seatpad skeleton is connected with the lower extreme of back skeleton, and the upper end of back skeleton is connected with the lower extreme of headrest skeleton, a serial communication port, the front end of seatpad skeleton be equipped with the foot and hold in the palm the sub-assembly, the both sides of the lower extreme of back skeleton all are equipped with the slide rail, go up the slide rail and be used for fixing the lower slide rail sliding connection of one side in the automobile body, be fixed with under the energy-absorbing stick fixed bolster on the back skeleton, the lower extreme fixed connection of fixed bolster and energy-absorbing stick under the energy-absorbing stick, fixed bolster fixed connection on the upper end of energy-absorbing stick and.

Preferably, the foot support assembly comprises a foot support, the foot support is connected with one end of a connecting rod, and the other end of the connecting rod is connected with the front end of the seat cushion framework through a turnover structure or directly connected with the front end of the seat cushion framework.

Preferably, the energy absorption rod is perpendicular to the seat cushion framework.

Preferably, the energy absorption rod comprises a central lifting rod, the upper end of the central lifting rod is fixedly connected with an upper fixing support of the energy absorption rod through an energy absorption rod connector, a pipe expanding head is arranged at the lower end of the central lifting rod, an energy absorption pipe is sleeved outside the central lifting rod, an outer sleeve fixed together with the energy absorption pipe is sleeved outside the energy absorption pipe, the lower end of the outer sleeve is fixed on a lower fixing support of the energy absorption rod, a plurality of sections of reinforcing ribs are uniformly distributed on the inner wall of the lower part of the energy absorption pipe, and the pipe expanding head is arranged in the energy absorption pipe and below the reinforcing ribs; the minimum inner diameter of a circle formed by the multiple sections of reinforcing ribs is smaller than the maximum outer diameter of the tube expanding head.

Preferably, the upper end and the lower end of the outer sleeve are both fixed with energy-absorbing rod end covers used for fixing the outer sleeve and the energy-absorbing pipe together.

Preferably, a limit nut is arranged between the upper end of the outer sleeve and the energy absorption rod connector, and the limit nut is sleeved on the central lifting rod and is in threaded connection with the central lifting rod; the lower end of the limiting nut is screwed with the upper end of the outer sleeve.

Preferably, the central lifting rod is further provided with an anti-shaking block, the anti-shaking block is arranged in the energy absorption pipe, the maximum outer diameter of the anti-shaking block is matched with the inner diameter of the upper part of the energy absorption pipe, and the anti-shaking block is arranged above the reinforcing rib.

Preferably, the number of the reinforcing ribs in the energy absorption pipe is at least 3 sections.

Preferably, the lower end of the reinforcing rib is provided with a gradually changed buffering gradient in transitional connection with the inner wall of the energy absorption pipe.

The utility model discloses a seat simple structure, simple to operate also can install application range extensively in narrow and small space. The seat of the utility model is fixed on one side of the vehicle body, and the energy absorption bar with one end fixed on the seat and the other end fixed on the inner side surface of the vehicle body can consume the acceleration generated by the impact when the vehicle is impacted, thereby reducing the injury to the human body on the seat; the vehicle can freely move up and down when being subjected to upward impact force through the sliding rail assembly without the locking mechanism, the possibility of movement towards other directions is reduced through the sliding of the sliding rail, and energy can be better absorbed through the energy absorption rod; the foot support is arranged at the front end of the seat, so that when the bicycle is impacted, the feet are prevented from being damaged due to severe impact. The energy-absorbing rod can select the reinforcing ribs with different heights according to different materials of the energy-absorbing pipe and the expected impact force, so that the energy-absorbing rod is more convenient to manufacture, is convenient for batch production and modification, and avoids waste of old products.

Drawings

FIG. 1 is a schematic structural view of an explosion-proof seat;

FIG. 2 is a cross-sectional view of an energy absorbing bar.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

Example 1

The utility model relates to an explosion-proof seat, as shown in fig. 1, it includes seatpad skeleton 3, seatpad skeleton 3's rear end is connected with back skeleton 2's lower extreme, back skeleton 2's upper end is connected with headrest skeleton 1's lower extreme, seatpad skeleton 3's front end is equipped with the foot and holds in the palm sub-assembly 4, the both sides of back skeleton 2's lower extreme all are equipped with slide rail fixed bolster 5, be equipped with the slide rail on the slide rail fixed bolster 5, go up the slide rail and be used for fixing the lower slide rail sliding connection of one side in the automobile body, it does not have locking mechanism's slide rail set 6 with lower slide rail component to go up the slide rail, be fixed with energy-absorbing stick lower fixed bolster 7 on the back skeleton 2, energy-absorbing stick lower fixed bolster 7 and energy-absorbing stick 8's lower extreme fixed connection, energy-. The energy absorbing rod 8 is perpendicular to the cushion frame 3.

The foot support assembly 4 comprises a foot support, the foot support is connected with one end of a connecting rod, and the other end of the connecting rod is connected with the front end of the seat cushion framework 3 through a turnover structure or directly connected with the front end of the seat cushion framework 3.

As shown in fig. 2, the energy absorbing rod 8 comprises a central lifting rod 15, the upper end of the central lifting rod 15 is fixedly connected with an energy absorbing rod upper fixing bracket 9 through an energy absorbing rod connector 10, the lower end of the central lifting rod 15 is provided with a pipe expanding head 16, an energy absorbing pipe 14 is sleeved outside the central lifting rod 15, an outer sleeve 13 fixed together with the energy absorbing pipe 14 is sleeved outside the energy absorbing pipe 14, the lower end of the outer sleeve 13 is fixed on an energy absorbing rod lower fixing bracket 7, 4 sections of reinforcing ribs are uniformly distributed on the inner wall of the lower part of the energy absorbing pipe 14, and the pipe expanding head 16 is arranged in the energy absorbing pipe 14 and is arranged below the reinforcing ribs; the minimum inner diameter of a circle enclosed by the 4 sections of reinforcing ribs is smaller than the maximum outer diameter of the pipe expanding head 16. The lower end of the reinforcing rib is provided with a gradually changed buffer gradient which is in transitional connection with the inner wall of the energy absorption pipe 14.

The upper end and the lower end of the outer sleeve 13 are both fixed with an energy-absorbing rod end cover 12 used for fixing the outer sleeve 13 and the energy-absorbing pipe 14 together. A limiting nut 11 is arranged between the upper end of the outer sleeve 13 and the energy absorption rod connector 10, and the limiting nut 11 is sleeved on the central lifting rod 15 and is in threaded connection with the central lifting rod 15; the lower end of the limit nut 11 is screwed with the upper end of the outer sleeve 13.

The utility model discloses during the use, will the utility model discloses a seat is installed in the side of special type vehicle automobile body, and the bottom surface of seat floats sky, does not contact with car chassis. When the chassis of the vehicle is subjected to an upward strong impact force, the whole vehicle moves upwards, the seat cushion framework 3 does not move, and the seat cushion framework 3 moves downwards relative to the vehicle body. The fixed support 9 on the energy-absorbing rod fixed together with the car body moves upwards to drive the central lifting rod 15 to move upwards, so that the pipe expanding head 16 at the lower end of the central lifting rod 15 moves upwards between the reinforcing ribs on the inner wall of the energy-absorbing pipe 14, and the energy-absorbing pipe 14 is slowly expanded, so that the energy-absorbing effect is achieved, and the damage of the shock injury of a person sitting on the seat cushion framework 3 is reduced.

According to different materials of the energy absorption pipe 14, the height of the reinforcing ribs can be properly increased or reduced, so that the tube expanding head 16 can be used for expanding the inner wall of the energy absorption pipe 14 just but not expanded easily, the damage to a human body caused by the fact that energy is not exhausted is prevented, the tube expanding head 16 cannot be too tight, the inner wall of the energy absorption pipe 14 cannot be expanded, and the device loses the function.

Namely, if the material of the energy absorption pipe 14 is easier to expand, the height of the reinforcing rib needs to be increased; if the material of the energy absorption tube 14 is difficult to expand, the height of the reinforcing ribs needs to be lower, and the minimum inner diameter of a circle formed by the 4 sections of reinforcing ribs is smaller than the maximum outer diameter of the pipe expanding head 16.

Example 2

In this embodiment, the central lifting rod 15 is further provided with an anti-shaking block, the anti-shaking block is arranged in the energy-absorbing pipe 14, the maximum outer diameter of the anti-shaking block is matched with the inner diameter of the upper part of the energy-absorbing pipe 14, and the anti-shaking block is arranged above the reinforcing rib. The number of the reinforcing ribs in the energy absorption pipe 14 is 3 sections.

The rest is the same as in example 1.

Claims

1. The utility model provides an explosion-proof seat, includes seatpad skeleton (3), the rear end of seatpad skeleton (3) is connected with the lower extreme of back skeleton (2), and the upper end of back skeleton (2) is connected with the lower extreme of headrest skeleton (1), its characterized in that, the front end of seatpad skeleton (3) be equipped with foot rest sub-assembly (4), the both sides of the lower extreme of back skeleton (2) all are equipped with the slide rail, go up the slide rail and be used for fixing the lower slide rail sliding connection of one side in the automobile body, be fixed with energy-absorbing stick lower fixed bolster (7) on back skeleton (2), the lower extreme fixed connection of energy-absorbing stick lower fixed bolster (7) and energy-absorbing stick (8), upper end and the energy-absorbing stick upper fixed bolster (9) fixed connection of one side in the automobile body of energy-absorbing stick (.

2. An explosion-proof seat as claimed in claim 1, wherein the foot rest assembly (4) comprises a foot rest, the foot rest is connected with one end of a connecting rod, and the other end of the connecting rod is connected with the front end of the seat cushion frame (3) through a turnover structure or directly connected with the front end of the seat cushion frame (3).

3. An explosion-proof seat as claimed in claim 1, characterized in that the energy-absorbing bar (8) is arranged perpendicular to the seat frame (3).

4. The explosion-proof seat as claimed in claim 1, characterized in that the energy-absorbing rod (8) comprises a central lifting rod (15), the upper end of the central lifting rod (15) is fixedly connected with an upper fixing bracket (9) of the energy-absorbing rod through an energy-absorbing rod connector (10), the lower end of the central lifting rod (15) is provided with a pipe expanding head (16), the outer side of the central lifting rod (15) is sleeved with an energy-absorbing pipe (14), the outer side of the energy-absorbing pipe (14) is sleeved with an outer sleeve (13) fixed together with the energy-absorbing pipe, the lower end of the outer sleeve (13) is fixed on a lower fixing bracket (7) of the energy-absorbing rod, the inner wall of the lower part of the energy-absorbing pipe (14) is uniformly provided with a plurality of sections of reinforcing ribs, and the pipe expanding head (16); the smallest inner diameter of a circle formed by the multiple sections of reinforcing ribs is smaller than the largest outer diameter of the pipe expanding head (16).

5. An explosion-proof seat as claimed in claim 4, characterized in that the upper and lower ends of the outer sleeve (13) are fixed with energy-absorbing rod end caps (12) for fixing the outer sleeve (13) and the energy-absorbing tube (14) together.

6. An explosion-proof seat as claimed in claim 4, characterized in that a limit nut (11) is arranged between the upper end of the outer sleeve (13) and the energy-absorbing rod connector (10), the limit nut (11) is sleeved on the central lifting rod (15) and is in threaded connection with the central lifting rod (15); the lower end of the limiting nut (11) is screwed with the upper end of the outer sleeve (13).

7. An explosion-proof seat as claimed in claim 4, wherein the central lifting bar (15) is further provided with an anti-sloshing block, the anti-sloshing block is arranged in the energy-absorbing pipe (14), the maximum outer diameter of the anti-sloshing block is matched with the inner diameter of the upper part of the energy-absorbing pipe (14), and the anti-sloshing block is arranged above the reinforcing ribs.

8. An explosion-proof seat as claimed in claim 4, characterized in that the number of ribs in the energy-absorbing tube (14) is at least 3.

9. An explosion-proof seat as claimed in claim 4, characterized in that the lower end of the reinforcing rib is provided with a gradually changing cushioning gradient which is in transitional connection with the inner wall of the energy-absorbing tube (14).