CN212400993U - Military vehicle seat buffering and isolating device - Google Patents
Military vehicle seat buffering and isolating device Download PDFInfo
- Publication number
- CN212400993U CN212400993U CN202021554299.2U CN202021554299U CN212400993U CN 212400993 U CN212400993 U CN 212400993U CN 202021554299 U CN202021554299 U CN 202021554299U CN 212400993 U CN212400993 U CN 212400993U
- Authority
- CN
- China
- Prior art keywords
- spring
- seat
- buffer
- fixed single
- outer tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Seats For Vehicles (AREA)
- Vibration Dampers (AREA)
Abstract
The utility model belongs to the explosion-proof field of vehicle, concretely relates to military vehicle seat cushions off device. The device sets up at seat frame back or side, the device includes: a fixing mechanism: the buffer partition device comprises an upper fixing single head and a lower fixing single head, and is used for realizing the connection of the buffer partition device and a seat; the starting mechanism comprises: the buffer partition device is used for preventing false triggering of the buffer partition device and starting of a buffer energy absorption process; a buffer mechanism: the energy absorber is used for buffering and isolating impact energy in the explosion process; including inner tube, outer tube and set up the flaky snakelike spring that is between inner tube and outer tube, snakelike spring lower extreme with fixed single-end connection down, fixed single-end and interior union coupling go up fixed single-end and outer union coupling, but snakelike spring upper end relative outer tube relative motion one section distance. The utility model discloses seat buffering off device realizes effectively improving seat barrier property from seat to passenger's impact energy's wall through utilizing the plastic deformation of snakelike spring after the seat receives the impact.
Description
Technical Field
The utility model belongs to the explosion-proof field of vehicle, concretely relates to military vehicle seat cushions off device.
Background
Ground mines and Improvised Explosive Devices (IEDs) are a great threat to military vehicles, and vehicle bottom protection technology and seat protection technology are important means for reducing damage to passengers. The lightning protection seat is used as the last line of defense for protecting passengers, and energy generated by explosion impact transmitted to a seat mounting point needs to be buffered and attenuated. Therefore, the design of the lightning protection seat buffer partition device is the key for protecting the safety of the passengers, and the impact peak value and the time of the passengers are controlled within a reasonable range by utilizing effective space and link impact strength of the passengers.
In the face of the above situations, lightning protection seats equipped with different forms of buffer devices are provided abroad, for example, a blast series explosion-proof seat of the simple company adopts a metal belt type buffer structure, energy is absorbed through elastic-plastic deformation of a metal belt and friction between a pin and the metal belt, but the metal belt is easy to break under the condition of unreliable materials, and false starting may occur under the daily driving working condition; british Creation corporation develops a lightning protection seat with a spring shock absorber and a rubber buffer, and the spring and the rubber are elastically deformed to absorb energy, but the lightning protection seat is only suitable for low-speed impact below 100g, and has an undesirable effect under high-frequency high-speed impact; a second-generation XYZVR series seat developed by GSS company in America adopts a magnetorheological fluid buffer device, and utilizes the effect that magnetorheological fluid becomes viscoelastic solid in a magnetic field environment to buffer and absorb energy, but the cost is higher, and a liquid leakage phenomenon possibly exists in an explosion environment.
In conclusion, the conventional seat cushion device has the problems of complex structure, unstable work, unsatisfactory high-speed impact buffering effect and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a military vehicle seat buffering off device and buffering off method.
Realize the utility model discloses the technical solution of purpose does: a military vehicle seat cushioning partition device, the device disposed on a seat frame back or side, the device comprising:
a fixing mechanism: the buffer partition device comprises an upper fixing single head and a lower fixing single head, and is used for realizing the connection of the buffer partition device and a seat;
the starting mechanism comprises: the buffer partition device is used for preventing false triggering of the buffer partition device and starting of a buffer energy absorption process;
a buffer mechanism: the energy absorber is used for buffering and isolating impact energy in the explosion process; including inner tube, outer tube and set up the flaky snakelike spring that is between inner tube and outer tube, snakelike spring lower extreme is connected with fixed single-end down, and fixed single-end and inner tube connection down, go up fixed single-end and outer tube connection, but one section distance of snakelike spring upper end relative outer tube relative motion.
Furthermore, the upper fixed single head is detachably connected with the upper cross beam of the seat, and the lower fixed single head is detachably connected with the lower cross beam of the seat.
Furthermore, the starting mechanism is a spring plate limiting type starting mechanism.
Furthermore, the starting mechanism comprises an elastic sheet, an elastic sheet supporting block and a starting bolt;
the starting bolt is characterized in that the elastic sheet is connected with an elastic sheet supporting block, the elastic sheet supporting block is connected with the outer pipe, a through hole is formed in the middle of the elastic sheet, the upper portion of the starting bolt is hung on the elastic sheet, and the lower portion of the starting bolt penetrates through the through hole of the elastic sheet and then is connected to the bolt fixing block.
Furthermore, the through hole main body on the elastic sheet is circular, and a plurality of branch-shaped through holes are formed in the periphery of the circular through hole.
Furthermore, the upper part of the serpentine spring is provided with a strip-shaped limiting hole, the inner wall of the outer tube is provided with a limiting bolt matched with the limiting hole, and the limiting bolt is arranged in the limiting hole and plays a role in relative motion and limiting on the upper part of the serpentine spring.
Furthermore, the bending angles of the snake-shaped parts of the snake-shaped spring are all 90 degrees; the snakelike spring can be dismantled and connect, selects material, the thickness of snakelike spring according to the demand.
Further, the number of the serpentine springs is at least one.
The method for performing buffer partition by using the device is characterized by comprising the following steps of:
step (1) when the vertical impact on the seat is smaller than the starting force, the starting bolt is supported by the starting mechanism through the elastic sheet, so that the buffer partition device does not work under the safe working condition;
step (2): when the vertical impact on the seat of the starting mechanism is greater than the starting force, the upper crossbeam of the seat drives the upper fixed single head, the outer pipe, the elastic piece supporting block and the elastic piece to generate an upward movement trend, meanwhile, the lower crossbeam of the seat drives the lower fixed single head, the inner pipe and the serpentine spring to generate a relative downward movement trend, when the plastic deformation of the elastic piece is large enough, the starting bolt is separated from the limit of the elastic piece, and the outer pipe drives the serpentine spring to move upwards;
and (3): after the starting bolt moves downwards for a certain distance relative to the elastic sheet, the limiting hole at the upper part of the snake-shaped spring is restrained by the bolt, and the snake-shaped part of the snake-shaped spring starts to bear high-speed impact and generate plastic deformation, so that the impact energy transmission path is isolated.
Compared with the prior art, the utility model, it is showing the advantage and lies in:
(1) the utility model provides a seat buffering off device goes up fixed single-end and links to each other with the outer tube, and lower fixed single-end links to each other with inner tube and snakelike spring, and the motion of interior outer tube restraint snakelike spring in vertical direction, start-up bolt pass metal shrapnel and realize buffer's start-up, and the plastic deformation that produces through the stretching of snakelike spring realizes that the damping and the wall of seat impact energy are given to the automobile body transmission, has reduced passenger's damage risk in the car by a wide margin.
(2) The utility model provides a seat buffering off device through the combination of metal shrapnel and start bolt, has realized buffering off device's the setting of starting power for this buffering off device can not play a role when the vehicle goes in safe operating mode such as the road surface of jolting, and buffer gear is in the state of awaiting orders.
(3) The utility model provides a seat buffering off device, snakelike spring bending angle are 90, and snakelike spring is because of the continuous extension of plastic deformation when receiving high-speed impact, and the fluctuation is nevertheless less than ultimate load all the time from top to bottom in tensile load, realizes the buffering and cutting off to high-speed impact, can realize the restriction to the seat gliding stroke after snakelike spring straightens simultaneously, prevents that the seat from touching the end.
(4) The utility model provides a seat buffering off device can possess different buffer capacities through thickness and the material that changes snakelike spring, and the width of cracking through quantity, thickness, material and the shell fragment that changes metal shrapnel can change buffering off device's starting force to adapt to different seat demands or different operating modes that travel.
(5) The utility model provides a seat buffering off device, snakelike spring thickness is thinner, and manufacturing process is simple and convenient, and occupation space is less with inside and outside pipe assembly back, and on-the-spot convenient assembling can realize buffering off device's used repeatedly.
Drawings
FIG. 1 is a cross-sectional view of a seat cushioning partition of the present application.
Fig. 2 is a schematic view of a serpentine spring of the present application.
Fig. 3 is a schematic diagram of the spring plate of the present application.
Fig. 4 is a schematic view showing the installation and initial state of the cushioning partition device according to the seat back installation method of the present invention.
Fig. 5 is a schematic view showing a cushioning state of the cushioning cutoff device according to the seat back mounting mode of the present invention.
Description of reference numerals:
1-upper fixed single head, 2-connecting bolt, 3-outer tube, 4-spring plate, 5-spring plate supporting block, 6-inner tube, 7-lower fixed single head, 8-serpentine spring, 9-bolt fixed block, 10-fixed screw, 11-spring plate fixed screw, and 12-starting bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model aims to provide a seat transmits the impact for passenger in buffering, decay explosion environment in the car, improves passenger barrier propterty to a novel military vehicle seat buffering cuts off device can cut off the transmission of impact energy, reduces passenger damage risk by a wide margin. Furthermore, the utility model discloses can adjust according to daily driving and explosion protection's needs, change self and start the power size, adjustment buffering off device's buffer capacity can also realize buffering off device's used repeatedly through changing shell fragment and snakelike spring simultaneously.
As shown in figure 1, the military vehicle seat buffer partition device comprises an elastic sheet 4, a snake-shaped spring 8, a starting bolt 12, an elastic sheet supporting block 5, a bolt fixing block 9, an upper fixing single head 1, a lower fixing single head 7, an inner pipe 6, an outer pipe 3, a fixing screw and a bolt. The upper fixing single head 1 and the lower fixing single head 7 are respectively connected with the upper cross beam and the lower cross beam of the seat through bolts.
The military vehicle seat buffer partition device starts to act when the seat is impacted under the explosion working condition, and the upper fixed single head 1 drives the outer tube 3 and the snake-shaped spring 8 to move upwards along the outer wall of the inner tube 6. The undeformed part of the serpentine spring 8 generates plastic tensile deformation in the upward movement process to attenuate impact energy, and the seat has vertical downward relative movement.
The upper limiting hole of the serpentine spring 8 is limited in the vertical direction through a bolt 2, and the lower limiting hole of the serpentine spring is fixed on the lower fixing single head 7 through the bolt 2; the outer wall of the inner pipe 6 and the inner wall of the outer pipe 3 limit the snake-shaped spring to move along the vertical direction.
As shown in fig. 2, the cushioning and partitioning device can have different cushioning capacities by changing the thickness, width and material of the serpentine spring 8, and the cushioning and partitioning device can be reused by replacing the serpentine spring 8.
As shown in fig. 3, the elastic sheet 4 is connected with the elastic sheet supporting block 5 through an elastic sheet fixing screw 11, the starting bolt 12 is connected with the bolt fixing block 9 and the inner tube 6 through welding, the starting bolt 12 is hung on the elastic sheet 4 under the daily working condition, and the elastic sheet 4 deforms when the explosion impacts, so that the starting of the buffering process of the buffering partition device is realized. The change of the starting force of the buffer partition device can be realized by changing the number, the thickness and the material of the elastic sheets 4 and the opening width and the length of the elastic sheets, and the repeated use of the buffer partition device can be realized by replacing the elastic sheets 4.
The lower fixed single head 7 is connected with the inner tube 6 of the buffer partition device and the snake-shaped spring 8 through the bolt 2, and the outer tube 3 of the buffer partition device is connected with the upper fixed single head 1 to form a translation pair to restrict the motion track of the buffer partition device. The maximum distance between the upper cross beam and the lower cross beam is restricted by controlling the length of the seat framework slide rail, so that the maximum stroke of the buffer partition device is limited.
Under the high-speed impact after the explosion of land mine or simple explosion device, the seat surface skeleton has the trend of downward motion because of inertia relative to the seat installation stand, and when the impact force that the lower fixed single-end that is connected with the seat surface skeleton received exceeds the starting force of shell fragment 4, lower fixed single-end 7 drove starting bolt 12 and passes shell fragment 4, and snakelike spring 8 moves a segment distance downwards to the upper end and receives the support of being fixed in the bolt 2 of outer tube simultaneously. At the moment, the lower fixed single head 7 drives the inner tube 6 and the serpentine spring 8 to continue to move downwards along the translation pair formed by the outer tube 3, the serpentine spring 8 starts to be stretched to generate plastic deformation, explosion impact energy is buffered and attenuated, high-speed impact on passengers is cut off, and accordingly the risk of injury of the passengers is effectively reduced. Fig. 4 shows the installation position of the buffer stop on the seat and the initial state when the buffer stop is not in operation, and the buffer state of the seat buffer stop moving relatively downwards along the slide rail after the seat buffer stop is subjected to explosive impact is shown in fig. 5.
Claims (8)
1. A military vehicle seat cushioning partition device, characterized in that, the device sets up in seat frame back or side, the device includes:
a fixing mechanism: comprises an upper fixed single head (1) and a lower fixed single head (7) which are used for realizing the connection of the buffer partition device and the seat;
the starting mechanism comprises: the buffer partition device is used for preventing false triggering of the buffer partition device and starting of a buffer energy absorption process;
a buffer mechanism: the energy absorber is used for buffering and isolating impact energy in the explosion process; including inner tube (6), outer tube (3) and set up be flaky snakelike spring (8) between inner tube (6) and outer tube (3), snakelike spring (8) lower extreme is connected with fixed single-end (7) down, and fixed single-end (7) are connected with inner tube (6) down, it is connected with outer tube (3) to go up fixed single-end (1), but one section distance of snakelike spring (8) upper end relative outer tube (3) relative motion.
2. The device according to claim 1, characterized in that the upper fixed single head (1) is removably connected to the upper crosspiece of the seat and the lower fixed single head (7) is removably connected to the lower crosspiece of the seat.
3. The device of claim 1, wherein the actuating mechanism is a spring-loaded actuating mechanism.
4. A device according to claim 3, wherein the activation mechanism comprises a spring (4), a spring support block (5) and an activation bolt (12);
the spring plate (4) is connected with the spring plate supporting block (5), the spring plate supporting block (5) is connected with the outer pipe (3), a through hole is formed in the middle of the spring plate (4), the upper portion of the starting bolt (12) is hung on the spring plate (4), and the lower portion of the starting bolt is connected to the bolt fixing block (9) after penetrating through the through hole of the spring plate (4).
5. The device as claimed in claim 4, wherein the main body of the through hole of the resilient plate is circular, and a plurality of branch-shaped through holes are formed around the circular through hole.
6. The device according to claim 5, characterized in that the upper part of the serpentine spring (8) is provided with a long-strip-shaped limiting hole, the inner wall of the outer tube (3) is provided with a limiting bolt matched with the limiting hole, and the limiting bolt is arranged in the limiting hole and plays a role in relatively moving and limiting the upper part of the serpentine spring (8).
7. The device according to claim 6, characterized in that the serpentine portions of the serpentine spring (8) are bent at angles of 90 degrees; the snake-shaped spring (8) can be detachably connected, and the material and the thickness of the snake-shaped spring (8) can be selected according to requirements.
8. Device according to claim 7, characterized in that said serpentine spring (8) is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021554299.2U CN212400993U (en) | 2020-07-31 | 2020-07-31 | Military vehicle seat buffering and isolating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021554299.2U CN212400993U (en) | 2020-07-31 | 2020-07-31 | Military vehicle seat buffering and isolating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212400993U true CN212400993U (en) | 2021-01-26 |
Family
ID=74374235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021554299.2U Active CN212400993U (en) | 2020-07-31 | 2020-07-31 | Military vehicle seat buffering and isolating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212400993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111845492A (en) * | 2020-07-31 | 2020-10-30 | 南京理工大学 | Military vehicle seat buffer partition device and buffer partition method |
| CN114893526A (en) * | 2022-05-31 | 2022-08-12 | 南京理工大学 | Vehicle seat suspension damper for coping with impact |
-
2020
- 2020-07-31 CN CN202021554299.2U patent/CN212400993U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111845492A (en) * | 2020-07-31 | 2020-10-30 | 南京理工大学 | Military vehicle seat buffer partition device and buffer partition method |
| CN111845492B (en) * | 2020-07-31 | 2024-04-12 | 南京理工大学 | Buffer partition device and buffer partition method for military vehicle seat |
| CN114893526A (en) * | 2022-05-31 | 2022-08-12 | 南京理工大学 | Vehicle seat suspension damper for coping with impact |
| CN114893526B (en) * | 2022-05-31 | 2023-09-12 | 南京理工大学 | Vehicle seat suspension damper for coping with impact |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2342475B1 (en) | Shock absorbing mechanism, device with occupant's feet protection for vehicle and aircraft seats, and method for protecting a seat occupant against impacts | |
| CN103661028B (en) | The anti-land mine seat of a kind of vehicle | |
| CA2801239C (en) | Blast attenuation seat | |
| CN212400993U (en) | Military vehicle seat buffering and isolating device | |
| US20170023335A1 (en) | System and method for a blast attenuating seat with lower-limb protection | |
| CN115257482B (en) | Self-adaptive weight and explosion buffering and energy absorbing device for military vehicle seat | |
| CN111845493B (en) | Manual adjustment buffering isolation device for lightning protection seat of military vehicle and use method | |
| CN212796599U (en) | Manual adjustment buffer isolation device of military vehicle lightning protection seat | |
| CN111572781B (en) | Plate-type energy-absorbing crash-resistant seat | |
| CN111572420B (en) | Military vehicle lightning protection seat energy-absorbing device | |
| CN115214507B (en) | Buffer device and crashproof car | |
| CN114394039B (en) | Self-adaptive buffer partition device for military vehicle seat and use method | |
| EP0592561B1 (en) | Engine mounting system | |
| CN111845492B (en) | Buffer partition device and buffer partition method for military vehicle seat | |
| CN210310043U (en) | Externally-hung energy absorption device | |
| CN103692938A (en) | Safety seat and energy absorbers thereof | |
| CN113060057B (en) | Lightning protection damping seat capable of adjusting lifting | |
| CN109849751A (en) | A kind of seat crash energy absorption equipment | |
| CN219452732U (en) | Combined spring force reducer and collision-reducing and shock-absorbing device thereof | |
| CN108099711B (en) | Lightning-protection secondary combined air damper | |
| CN110303955B (en) | Vehicle damping buffering seat based on four-bar adjusting mechanism | |
| CN219927635U (en) | Heavy truck front bumper skeleton assembly | |
| CN114645524B (en) | Energy-absorbing component and anti-collision device | |
| CN114562531B (en) | Collapsible type vehicle bottom explosion protection unidirectional damper | |
| CN116146632A (en) | Combined spring force reducer and collision-reducing and shock-absorbing device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |