CN219007662U - Special type vehicle lightning protection seat energy absorber - Google Patents
Special type vehicle lightning protection seat energy absorber Download PDFInfo
- Publication number
- CN219007662U CN219007662U CN202222925865.1U CN202222925865U CN219007662U CN 219007662 U CN219007662 U CN 219007662U CN 202222925865 U CN202222925865 U CN 202222925865U CN 219007662 U CN219007662 U CN 219007662U
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- Prior art keywords
- buffer
- positioning block
- piston
- cylinder barrel
- energy absorber
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 24
- 239000000872 buffer Substances 0.000 claims abstract description 60
- 210000004907 gland Anatomy 0.000 claims abstract description 16
- 210000000078 claw Anatomy 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 238000004880 explosion Methods 0.000 abstract description 10
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model provides a lightning protection seat energy absorber of a special vehicle, which comprises a piston, a gland, a buffer sheet, a positioning block, a cylinder barrel cover and a fixing bolt. The piston and the cylinder barrel cover are positioned on the same straight line, so that the same direction of the tensile stress and the explosion impact force can be realized, the utilization rate of the buffer stroke is high and 20% higher than that of similar products; the buffer sheets are designed in a W-shaped mode and are arranged in a double-sheet overlapped mode, and the bearing capacity of the buffer sheets is higher than that of like products by more than 15%. When the energy absorber is used, the special vehicle seat can quickly buffer and absorb energy in a shorter stroke when encountering the explosion impact of a mine, so that the life safety of passengers is protected to the greatest extent, and the injury of the passengers is reduced. The energy absorber is simple and reliable, compact in structure, high in space utilization rate, large in buffering force and light in weight.
Description
Technical Field
The utility model belongs to the technical field of special vehicle lightning protection equipment, and particularly relates to a special vehicle lightning protection seat energy absorber.
Background
At present, most of lightning protection seats of special vehicles in China are wall-mounted, and the seats cannot effectively dissipate detonation wave energy formed by mine impact in a short stroke, so that the requirements of protecting lives of passengers cannot be met. Under the working condition that a maximum relative speed is formed when the mine explodes, the traditional hydraulic shock absorber is similar to a rigid body, cannot quickly attenuate impact energy generated by explosion in a shorter stroke, can form a maximum impact acceleration to passengers, causes personnel injury, and occupies a larger space size.
Disclosure of Invention
First, the technical problem to be solved
The utility model provides a lightning protection seat energy absorber for a special vehicle, which aims to solve the technical problems that when the special vehicle encounters landmine explosion, the seat rapidly buffers and absorbs energy in a shorter stroke and the injury degree of passengers caused by the landmine explosion is reduced.
(II) technical scheme
In order to solve the technical problems, the utility model provides a special vehicle lightning protection seat energy absorber which comprises a piston, a gland, a buffer sheet, a positioning block, a cylinder barrel cover and a fixing bolt; wherein,,
the positioning block is of a hollow cuboid structure with a step hole at the bottom, and a bolt mounting hole communicated with the step hole is formed in the top of the positioning block; the top plane of the positioning block is provided with a groove for ensuring that the buffer sheet falls into the positioning groove, and the edge part of the periphery of the top plane, which is contacted with the buffer sheet, is processed into an arc shape; the top of the piston is provided with a mounting hole which can be connected with the vehicle body bracket through a pin shaft, and a threaded hole is processed in the middle of the bottom of the piston; two buffer sheets are fixed in the top plane groove of the positioning block in a cross staggered and overlapped mode, and a round hole is formed in the middle of each buffer sheet; the fixing bolts are screwed into the bolt mounting holes sequentially through the bottom step holes of the positioning blocks, pass through the two buffer sheets and are screwed with the bottom threaded holes of the pistons, so that the positioning blocks, the buffer sheets and the pistons are fastened into a whole, and the two buffer sheets are clamped between the pistons and the positioning blocks; the positioning block, the buffer sheet and the piston are taken as a whole, and the top end of the cylinder barrel is inserted into the cylinder barrel; the gland is arranged on the periphery of the piston in a clearance fit mode, the top end of the cylinder barrel is inserted into the cylinder barrel and welded with the cylinder barrel into a whole, and a clearance is reserved between the piston and the gland; after the two free ends of the buffer sheet are bent, the tail end parts are clamped between the gland and the inner wall of the cylinder barrel, and the height of the tail end parts exceeds the top plane of the positioning block; the length of the positioning block is longer than the length of the bending part of the buffer sheet; the bottom of the cylinder cover is provided with a mounting hole which can be connected with the seat lifting lug through a pin shaft, and the top of the cylinder cover and the bottom of the cylinder barrel are welded into a whole; a groove is processed in the middle of the bottom of the cylinder cover, and the bottom end of the positioning block extends into the groove.
Further, a positioning claw is arranged at the top of the positioning block; the bottom of the piston is provided with a positioning groove corresponding to the positioning claw.
Further, the length of the positioning block exceeds twice the lifting height stroke of the buffer sheet.
Further, welding chamfers are reserved at contact positions of the cylinder cover and the cylinder barrel.
Further, observation holes are formed in the periphery of the cylinder barrel.
(III) beneficial effects
The utility model provides a lightning protection seat energy absorber of a special vehicle, which comprises a piston, a gland, a buffer sheet, a positioning block, a cylinder barrel cover and a fixing bolt. The piston and the cylinder barrel cover are positioned on the same straight line, so that the same direction of the tensile stress and the explosion impact force can be realized, the utilization rate of the buffer stroke is high and 20% higher than that of similar products; the buffer sheets are designed in a W-shaped mode and are arranged in a double-sheet overlapped mode, and the bearing capacity of the buffer sheets is higher than that of like products by more than 15%. When the energy absorber is used, the special vehicle seat can quickly buffer and absorb energy in a shorter stroke when encountering the explosion impact of a mine, so that the life safety of passengers is protected to the greatest extent, and the injury of the passengers is reduced. The energy absorber is simple and reliable, compact in structure, high in space utilization rate, large in buffering force and light in weight.
Drawings
FIG. 1 is a schematic view of an internal structure of a lightning protection seat energy absorber according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the exterior structure of a lightning protection seat energy absorber according to an embodiment of the utility model.
Detailed Description
To make the objects, contents and advantages of the present utility model more apparent, the following detailed description of the present utility model will be given with reference to the accompanying drawings and examples.
The embodiment provides a lightning protection seat energy absorber of a special vehicle, the structure of which is shown in figures 1 and 2, and mainly comprises a piston 1, a gland 2, a buffer sheet 3, a positioning block 4, a cylinder 5, a cylinder cover 6 and a fixing bolt 7.
The locating piece 4 is the cavity cuboid structure that the bottom processing has the step hole, and the top processing of locating piece 4 has the bolt mounting hole that link up with the step hole, not only is convenient for the installation of fixing bolt 7, can realize subtracting the heavy simultaneously. The top plane processing of locating piece 4 has the recess that is used for guaranteeing that buffer piece 3 falls into with the location, and the marginal portion processing of top plane all around and buffer piece 3 contact is circular arc shape to increase buffer piece 3 and locating piece 4's area of contact, avoid buffer piece 3's surface fish tail fracture, increase buffer piece 3's radius of bending, reduce the pressure concentration of bending process, strengthen the manufacturability of bending. Four positioning claws are arranged at the top of the positioning block 4.
The top of the piston 1 is provided with a mounting hole which can be connected with a vehicle body bracket through a pin shaft, four corners of the bottom of the piston 1 are provided with four positioning grooves corresponding to positioning claws, and a threaded hole is processed in the middle of the bottom. Grooves at four corners of the bottom of the piston 1 are matched with four positioning claws at the top of the positioning block 4 for positioning, so that the buffer sheet 3 can be ensured to be fixed and reliable in the installation and stretching deformation processes.
Two buffer sheets 3 are fixed in the top plane groove of the positioning block 4 in a cross staggered and stacked mode, and round holes are formed in the middle position of the buffer sheets 3. The fixing bolts 7 are screwed into the bolt mounting holes sequentially through the bottom step holes of the positioning blocks 4, penetrate through the two buffer sheets 3 and are screwed with the bottom threaded holes of the pistons 1, so that the positioning blocks 4, the buffer sheets 3 and the pistons 1 are fastened into a whole, and the two buffer sheets 3 are clamped between the pistons 1 and the positioning blocks 4.
The positioning block 4, the buffer sheet 3 and the piston 1 are integrally inserted into the cylinder 5 from the top end of the cylinder 5. The gland 2 is arranged on the periphery of the piston 1 in a clearance fit mode, and is inserted into the cylinder 5 from the top end of the cylinder 5 and welded with the cylinder 5 into a whole. A gap is reserved between the piston 1 and the gland 2, so that the buffer sheet 3 and the positioning block 4 can be conveniently pulled out from the cylinder 5.
After the two free ends of the buffer sheet 3 are bent by adopting a small radius, the tail end parts of the buffer sheet are clamped between the gland 2 and the inner wall of the cylinder 5, and the height of the buffer sheet exceeds the top plane of the positioning block 4.
The length of the positioning block 4 is greater than the length of the bending part of the buffer sheet 3 and is designed to be twice as long as the lifting height stroke of the buffer sheet 3, so that the buffer sheet 3 can be ensured to be always positioned in the constraint space of the positioning block 4 and the cylinder 5 in the working stroke during pulling, the guiding length is increased, and the stability of the stretching force value is ensured.
The bottom of cylinder cover 6 is provided with the mounting hole that can pass through round pin axle and seat lug hub connection, and the top of cylinder cover 6 welds as an organic wholely with the bottom of cylinder 5, and the welding chamfer is all left to the contact position of cylinder cover 6 and cylinder 5. A groove is processed in the middle of the bottom of the cylinder cover 6, and the bottom end of the positioning block 4 extends into the groove. The cylinder 5 and the cylinder cover 6 are in split type design, after all parts are assembled, the gland 2 and the cylinder 5 are combined and welded into a cylinder assembly, and the design can reduce the processing and manufacturing difficulty and cost and is convenient to install.
In order to observe whether the buffer sheet 3 is well installed in the cylinder 5, observation holes are formed in the periphery of the cylinder 5, and the operation is simple, convenient and reliable.
The piston 1 and the cylinder cover 6 of the energy absorber are positioned on the same straight line, the same direction of tensile stress and explosion impact force can be realized, and the buffer travel utilization rate is high and 20 percent higher than that of similar products. The core energy absorbing element-buffer sheet of the energy absorber adopts a W-shaped design and adopts double-sheet overlapped arrangement, and the bearing capacity of the energy absorber is more than 15% higher than that of the like products.
When the mine explosion shock wave acts on the vehicle body and is conducted to the seat, the piston 1 at the upper end of the seat energy absorber moves upwards along with the vehicle body relative to the seat, the buffer sheet 3 and the positioning block 4 are driven to be pulled out along the hole of the gland 2, and the buffer sheet 3 is curled and stretched to deform in the process, so that the buffer absorption of the mine explosion energy can be realized, and the life safety of passengers of the vehicle can be effectively protected.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (5)
1. The special vehicle lightning protection seat energy absorber is characterized by comprising a piston, a gland, a buffer sheet, a positioning block, a cylinder barrel cover and a fixing bolt; wherein,,
the positioning block is of a hollow cuboid structure with a step hole at the bottom, and a bolt mounting hole communicated with the step hole is formed in the top of the positioning block; the top plane of the positioning block is provided with a groove for ensuring that the buffer sheet falls into the positioning groove, and the edge part of the periphery of the top plane, which is contacted with the buffer sheet, is processed into an arc shape; the top of the piston is provided with a mounting hole which can be connected with the vehicle body bracket through a pin shaft, and a threaded hole is processed in the middle of the bottom of the piston; two buffer sheets are fixed in the top plane groove of the positioning block in a cross staggered and overlapped mode, and a round hole is formed in the middle of each buffer sheet; the fixing bolts are screwed into the bolt mounting holes sequentially through the bottom step holes of the positioning blocks, pass through the two buffer sheets and are screwed with the bottom threaded holes of the pistons, so that the positioning blocks, the buffer sheets and the pistons are fastened into a whole, and the two buffer sheets are clamped between the pistons and the positioning blocks; the positioning block, the buffer sheet and the piston are taken as a whole, and the top end of the cylinder barrel is inserted into the cylinder barrel; the gland is arranged on the periphery of the piston in a clearance fit mode, the top end of the cylinder barrel is inserted into the cylinder barrel and welded with the cylinder barrel into a whole, and a clearance is reserved between the piston and the gland; after the two free ends of the buffer sheet are bent, the tail end parts are clamped between the gland and the inner wall of the cylinder barrel, and the height of the tail end parts exceeds the top plane of the positioning block; the length of the positioning block is longer than the length of the bending part of the buffer sheet; the bottom of the cylinder cover is provided with a mounting hole which can be connected with the seat lifting lug through a pin shaft, and the top of the cylinder cover and the bottom of the cylinder barrel are welded into a whole; a groove is processed in the middle of the bottom of the cylinder cover, and the bottom end of the positioning block extends into the groove.
2. The energy absorber of claim 1, wherein a top of the positioning block is provided with a positioning claw; the bottom of the piston is provided with a positioning groove corresponding to the positioning claw.
3. The energy absorber of claim 1, wherein the length of the locating block exceeds twice the lift stroke of the bumper tab.
4. The energy absorber of claim 1, wherein the cylinder head and cylinder barrel contact locations each leave a weld chamfer.
5. The energy absorber of claim 1, wherein the cylinder has viewing holes machined around it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222925865.1U CN219007662U (en) | 2022-11-03 | 2022-11-03 | Special type vehicle lightning protection seat energy absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222925865.1U CN219007662U (en) | 2022-11-03 | 2022-11-03 | Special type vehicle lightning protection seat energy absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219007662U true CN219007662U (en) | 2023-05-12 |
Family
ID=86238166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222925865.1U Active CN219007662U (en) | 2022-11-03 | 2022-11-03 | Special type vehicle lightning protection seat energy absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219007662U (en) |
-
2022
- 2022-11-03 CN CN202222925865.1U patent/CN219007662U/en active Active
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