An armored detachable crashworthy seat

Abstract

The application discloses an armor detachable anti-crash seat, which comprises a main framework, a multifunctional back-flipping seat basin, a chair leg lock and a slide rail, the multifunctional back-flipping seat basin is arranged on the main framework, a height adjusting compensation mechanism is connected between the multifunctional back-flipping seat basin and the main framework, the slide rail is arranged below the main framework, and the lower end of the main framework is arranged on the slide rail through the chair leg lock; two detachable side armor assemblies, namely a left side armor assembly and a right side armor assembly, are arranged on the left side and the right side of the multifunctional back-flipping seat basin respectively, and a detachable bottom middle armor assembly is arranged on the lower part of the multifunctional back-flipping seat basin. The application has superior anti-crash protection performance, can meet the height adjusting requirements of the seat with the protective armor and the seat without the protective armor, and can meet the requirements of quick disassembly of all armors.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aviation equipment, in particular to an armored detachable crashworthy seat. BACKGROUND

[0002] At present, the crashworthy seats of armed helicopters are all provided with bulletproof armor. With the development of military-civilian integration, the design components of the seat are developed towards the configuration for military and civilian use. The military seat needs to meet the bulletproof protection requirement, and the civilian seat needs to focus on flexibility and reliability, and needs to be quickly converted.

[0003] The existing problems of the military armored crashworthy seat are as follows: a) the armor cannot be folded, and cannot provide a passage for personnel to escape; b) the armor folding mechanism is complex, and has a high failure rate; c) the armor is heavy, and the front and rear sliding is not flexible.

[0004] The existing problems of the conversion of the military seat to the civilian seat are as follows: a) after the armor is removed, the weight of the occupant is not enough to overcome the spring force due to the large air spring force; b) the chair basin interface is single, and cannot be quickly converted in configuration; c) the sliding rail of the military seat is generally a I-shaped sliding rail, and the seat generally does not have the characteristic of floor deformation. SUMMARY

[0005] The technical problem solved by the present application is to provide an armored detachable crashworthy seat, which has superior crashworthiness protection performance, and at the same time meets the height adjustment requirements of the seat with and without protective armor, and meets the requirement of quick disassembly of all armors, in view of the above-mentioned defects in the prior art.

[0006] The technical scheme adopted by the present application to solve the above technical problem is:

[0007] An armored detachable crashworthy seat, comprising a main framework, a multifunctional rear flip chair basin, a chair leg lock and a sliding rail, the multifunctional rear flip chair basin is arranged on the main framework, a height adjustment compensation mechanism is connected between the multifunctional rear flip chair basin and the main framework, the sliding rail is arranged below the main framework, and the lower end of the main framework is arranged on the sliding rail through the chair leg lock.

[0008] The left and right sides of the multifunctional rear flip chair basin are respectively provided with two detachable side armor assemblies, which are a left side armor assembly and a right side armor assembly, and the lower part of the multifunctional rear flip chair basin is provided with a detachable bottom middle armor assembly.

[0009] According to the above technical scheme, the left and right sides of the bottom middle armor assembly are respectively provided with a bottom left armor assembly and a bottom right armor assembly, the bottom left armor assembly and the bottom right armor assembly are detachably connected to the multifunctional rear flip chair basin, and the bottom left armor assembly and the bottom right armor assembly are arranged below the left side armor assembly and the right side armor assembly, respectively.

[0010] According to the technical scheme, the multifunctional back folding chair basin is provided with side armor connecting blocks on both sides, which are used for connecting the left side armor assembly and the right side armor assembly; the lower part of the multifunctional back folding chair basin is provided with a bottom middle armor assembly connecting block, which is used for connecting the bottom middle armor assembly.

[0011] The bottom of the multifunctional back folding chair basin is further provided with bottom side armor assembly connecting blocks, which are used for connecting the bottom left armor assembly and the bottom right armor assembly.

[0012] According to the technical scheme, the multifunctional back folding chair basin is further provided with a safety belt, a seat cushion and a backrest cushion.

[0013] According to the technical scheme, the multifunctional back folding chair basin is provided with mounting belt connecting blocks on both sides, and the upper end of the multifunctional back folding chair basin is provided with safety belt connecting holes; the mounting belt connecting blocks and the safety belt connecting holes are used for mounting the safety belt; the seat surface and the backrest surface of the multifunctional back folding chair basin are provided with seat cushion hooking belts and backrest cushion hooking belts, which are used for mounting the seat cushion and the backrest cushion.

[0014] According to the technical scheme, the multifunctional back folding chair basin is further provided with a main skeleton mounting hole, which is used for connecting with the main skeleton.

[0015] The connection between the seat and the backrest of the multifunctional back folding chair basin is provided with anti-crash avoidance bosses on both sides, so that the anti-crash avoidance bosses on the multifunctional back folding chair basin can effectively improve the impact stroke of the seat.

[0016] The backrest of the multifunctional back folding chair basin is provided with a backrest groove.

[0017] According to the technical scheme, the side armor assembly comprises a side bulletproof armor, an upper supporting arm, a lower supporting arm, a right side rotating shaft, a supporting frame, a left side rotating shaft, a quick release pin, an upper fixing seat and a lower fixing seat; the upper fixing seat is arranged above the lower fixing seat; the upper supporting arm is arranged above the lower supporting arm; one end of the upper supporting arm and one end of the lower supporting arm are respectively hinged to the upper fixing seat and the lower fixing seat through the left side rotating shaft; the two ends of the supporting frame are respectively hinged to the upper supporting arm and the lower supporting arm; the other end of the upper supporting arm and the other end of the lower supporting arm are connected to the upper end and the lower end of the side bulletproof armor through the right side rotating shaft; the upper supporting arm and the lower supporting arm are connected to the two side armor connecting blocks on the multifunctional back folding chair basin through the first quick release pin and the second quick release pin respectively; the third quick release pin is arranged between the upper supporting arm and the upper fixing seat or between the lower supporting arm and the lower fixing seat; the side armor assembly is locked and fixed in the unfolded position and the folded position through the third quick release pin.

[0018] According to the technical scheme, the height adjusting compensation mechanism comprises two first fixed hooks, a second fixed hook, a third fixed hook, two spring rope fixed hooks, a spring rope and a sliding hook, the two first fixed hooks are fixedly arranged on the upper end of the cup back of the multifunctional rear flip chair basin, the two ends of the spring rope are connected with the two first fixed hooks through the two spring rope fixed hooks, and the sliding hook is arranged on the spring rope;

[0019] The second fixed hook and the third fixed hook are fixedly arranged on the lower part of the multifunctional rear flip chair basin and the main framework, when the multifunctional rear flip chair basin is provided with armor, the sliding hook is hung on the second fixed hook, and the height adjusting compensation mechanism does not have the compensation function, and when the multifunctional rear flip chair basin is disassembled from the armor, the sliding hook is hung on the third fixed hook, and the height adjusting compensation mechanism has the compensation function.

[0020] According to the technical scheme, two chair leg locks are arranged on each slide rail, and are arranged in front and back, and are respectively front chair leg locks and rear chair leg locks.

[0021] The chair leg lock comprises a chair leg lock sliding block, a chair leg lock transition block, a chair leg lock fixed block and a pin shaft, the chair leg lock transition block is connected with the chair leg lock sliding block through the pin shaft, the chair leg lock sliding block is arranged on the slide rail, the chair leg lock fixed block is connected with the chair leg lock transition block through a rotating shaft, and the chair leg lock fixed block is connected with the main framework.

[0022] According to the technical scheme, one of the chair leg locks further comprises a steel cable sleeve fixed block, the steel cable sleeve fixed block is arranged on the chair leg lock sliding block, the steel cable sleeve fixed block is internally provided with a bolt assembly and a spring, the lower end of the bolt assembly is connected with the chair leg lock sliding block, and the spring is sleeved on the bolt assembly.

[0023] The chair leg lock sliding block is provided with a sliding needle fixed block, the sliding needle fixed block is arranged between the chair leg lock sliding block and the slide rail, a sliding needle is arranged in the hole of the sliding needle fixed block, and the chair leg lock sliding block is in contact with the slide rail through the sliding needle.

[0024] The application has the following beneficial effects:

[0025] 1. The application has superior anti-falling and anti-destroying performance, all the armors of the seat can be disassembled, the seat is provided with a height adjusting compensation mechanism, and the height adjusting demand of the seat with the protective armor and the seat without the protective armor is met; through the multifunctional rear flip chair basin, the integrated design of the seat and the main framework, the armor and the like interfaces is realized, and the demand of quick disassembly of all the armors is met.

[0026] 2. The seat pan is made of composite material and is designed with local concave-convex structure to provide support for the armor and improve the anti-crash impact travel. The armor folding mechanism (parallelogram structure) is used to realize the unfolding and folding of the armor and has a locking device to provide a lifesaving channel for personnel escape. The front and rear chair leg locks have roll and pitch axes to meet the performance requirements of the floor roll angle and pitch angle of 10°. The sliding needle fixing block and sliding needle of the front and rear chair leg locks change the sliding friction to rolling friction to ensure smooth sliding. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a front side perspective view of the armor detachable anti-crash seat in the embodiment of the present application;

[0028] Figure 2 is a rear side perspective view of the armor detachable anti-crash seat in the embodiment of the present application;

[0029] Figure 3 is a front side perspective view of the multifunctional rear flip seat pan in the embodiment of the present application;

[0030] Figure 4 is a rear side perspective view of the multifunctional rear flip seat pan in the embodiment of the present application;

[0031] Figure 5 is an explosion schematic view of the right side armor assembly in the embodiment of the present application;

[0032] Figure 6 is a structural schematic view of the right side armor assembly in the unfolded state in the embodiment of the present application;

[0033] Figure 7 is a structural schematic view of the right side armor assembly in the folded state in the embodiment of the present application;

[0034] Figure 8 is a structural schematic view of the height adjustment compensation mechanism in the embodiment of the present application;

[0035] Figure 9 is a working schematic view of the height adjustment compensation mechanism in the embodiment of the present application;

[0036] Figure 10 is a structural schematic view of the rear chair leg lock in the embodiment of the present application;

[0037] Figure 11 is an explosion schematic view of the rear chair leg lock in the embodiment of the present application;

[0038] Figure 12 is a structural schematic view of the front chair leg lock in the embodiment of the present application;

[0039] Figure 13 is an explosion schematic view of the front chair leg lock in the embodiment of the present application;

[0040] In the figure, 1 - seat main skeleton; 2 - multifunctional rear chair basin; 3 - left side armor assembly; 4 - right side armor assembly; 5 - bottom middle armor assembly; 6 - bottom left armor assembly; 7 - bottom right armor assembly; 8 - height adjustment compensation mechanism; 9 - rear chair leg lock; 10 - front chair leg lock; 11 - five-point safety belt; 12 - seat cushion; 13 - backrest cushion; 14 - slide rail;

[0041] 201 - bottom side armor assembly connecting block; 202 - side armor connecting block; 203 - safety belt connecting block; 204 - bottom middle armor assembly connecting block; 205 - safety belt connecting hole; 206 - anti-crash avoidance boss; 207 - backrest groove; 208 - main skeleton mounting hole; 209 - backrest and seat cushion hooking belt;

[0042] 401 - right side bulletproof armor; 402A - upper support arm; 402B - lower support arm; 403 - right side rotating shaft; 404 - support frame; 405 - gasket; 406 - left side rotating shaft; 407A - first quick release pin; 407B - second quick release pin; 407C - third quick release pin; 408A - upper fixing seat; 408B - lower fixing seat; 409A - screw nut; 409B - screw nut; 409C - screw nut; 409D - screw nut;

[0043] 801A - first fixed hook; 801B - second fixed hook; 801C - third fixed hook; 802 - spring rope fixing hook; 803 - spring rope; 804 - sliding hook; 805 - gas spring;

[0044] 901 - rear chair leg lock sliding block; 902 - chair leg lock transition block; 903 - chair leg lock fixed block; 904 - pin shaft; 905 - cable sleeve fixed block; 906 - sliding needle fixed block; 907 - sliding needle; 908 - latch assembly; 909 - spring; 9010 - shaft check ring; 1001 - front chair leg lock sliding block; 1002 - sliding needle fixed block. DETAILED DESCRIPTION

[0045] The present application will be described in detail below with reference to the accompanying drawings and examples.

[0046] Referring to Figures 1-13 As shown in the figure, one embodiment 1 of the armored detachable anti-crash seat provided by the present application includes a main skeleton 1, a multifunctional rear chair basin 2, a chair leg lock and a slide rail 14, the multifunctional rear chair basin 2 is arranged on the main skeleton 1, a height adjustment compensation mechanism 8 is connected between the multifunctional rear chair basin 2 and the main skeleton 1, the slide rail 14 is arranged below the main skeleton, and the lower end of the main skeleton is arranged on the slide rail through the chair leg lock;

[0047] The multifunctional back folding chair basin 2 is slidably connected with the main framework 1. The multifunctional back folding chair basin 2 is provided with a sliding block, and the main framework is provided with a sliding groove. The sliding block is arranged in the sliding groove. The multifunctional back folding chair basin 2 slides along the sliding groove through the sliding block. The main framework is provided with a gas spring. One end of a steel cable connected with the sliding block is connected with the movable end of the gas spring through a pulley.

[0048] The multifunctional back folding chair basin 2 is provided with two detachable side armor assemblies on the left and right sides, respectively, which are a left side armor assembly 3 and a right side armor assembly 4. The multifunctional back folding chair basin 2 is provided with a detachable bottom middle armor assembly 5 at the lower part.

[0049] Further, the multifunctional back folding chair basin 2 is provided with a bottom left armor assembly 6 and a bottom right armor assembly 7 on the left and right sides, respectively. The bottom left armor assembly 6 and the bottom right armor assembly 7 are detachably connected to the multifunctional back folding chair basin 2. The bottom left armor assembly 6 and the bottom right armor assembly 7 are arranged below the left side armor assembly 3 and the right side armor assembly 4, respectively. All the armors of the seat can be detached, and the seat has two use states, i.e., a state of being equipped with the armor assemblies and a state of being detached from the armor assemblies.

[0050] Further, the slide rail 14 serves as a bridge for connecting and fixing the seat with the cabin. On one hand, the slide rail 14 is connected with the bottom of the cabin through fasteners. On the other hand, the slide rail 14 is connected with the rear chair leg lock 9 and the front chair leg lock 10. Since the bottom end of the main framework 1 is connected with the rear chair leg lock 9 and the front chair leg lock 10, the seat is fixed in the cabin. Meanwhile, the multifunctional back folding chair basin 2 is connected with the main framework 1, the left side armor assembly 3, the right side armor assembly 4, the bottom middle armor assembly 5, the bottom left armor assembly 6, the bottom right armor assembly 7, the five-point safety belt 11, the seat cushion 12 and the backrest cushion 13. The height adjustment compensation mechanism 8 is connected with the multifunctional back folding chair basin 2 and the main framework 1. The seat has the functions of forward and backward sliding, height adjustment, detachable armor and deformation adaptation of the floor, and has a certain riding comfort. The seat has the function of detachable armor, i.e., when the armor is not needed, the left side armor assembly 3, the right side armor assembly 4, the bottom middle armor assembly 5, the bottom left armor assembly 6 and the bottom right armor assembly 7 can be detached from the multifunctional back folding chair basin 2.

[0051] Embodiment 2

[0052] As shown in Figures 3-4 the embodiment 1 is further increased in specific limitation of the detachable function structure. The performance of the limited embodiment 1 is more excellent.

[0053] Further, the multifunctional backrest chair basin is provided with side armor connecting blocks 202 on both sides, which are used to connect the left side armor assembly 3 and the right side armor assembly 4, and the multifunctional backrest chair basin is provided with a bottom middle armor assembly connecting block 204 at the lower part, which is used to connect the bottom middle armor assembly 5.

[0054] The multifunctional backrest chair basin is further provided with bottom side armor assembly connecting blocks 201 on both sides of the bottom, which are used to connect the bottom left armor assembly 6 and the bottom right armor assembly 7.

[0055] Further, the multifunctional backrest chair basin has multiple hanging points to provide support for the armor for the passengers to sit on.

[0056] Embodiment 3

[0057] As shown in the embodiment 1, the specific definition of the additional parts such as the safety belt is further increased, and the performance of the limited embodiment 1 is more excellent. Figures 1-4

[0058] Further, the multifunctional backrest chair basin 2 is further provided with a safety belt, a seat cushion 12 and a backrest cushion 13.

[0059] Further, the safety belt is a five-point installation belt 11.

[0060] Further, the multifunctional backrest chair basin is provided with installation belt connecting blocks 203 on both sides, and the multifunctional backrest chair basin is provided with safety belt connecting holes 205 at the upper end, the installation belt connecting blocks 203 and the safety belt connecting holes 205 are used to install the safety belt, and the seat surface and the backrest surface of the multifunctional backrest chair basin are provided with seat cushion hooking belts 209 and backrest hooking belts, which are used to install the seat cushion 12 and the backrest cushion 13.

[0061] Further, the multifunctional backrest chair basin is further provided with main skeleton installation holes 208 on the backrest, which are used to connect with the main skeleton;

[0062] The multifunctional backrest chair basin is provided with anti-crash avoidance bosses 206 on both sides of the connection between the seat and the backrest, so that the anti-crash avoidance bosses on the multifunctional backrest chair basin can effectively improve the impact stroke of the seat;

[0063] The multifunctional backrest chair basin is provided with a backrest groove on the backrest; the backrest groove can increase the effective thickness of the foam cushion and improve the comfort of the passengers.

[0064] ​Further, the multifunctional back folding chair basin 2 is formed by composite material processing, and has various interfaces and features, mainly including a bottom side armor assembly connecting block 201, a side armor connecting block 202, a safety belt connecting block 203, a bottom middle armor assembly connecting block 204, a safety belt connecting hole 205, an anti-crash avoidance boss 206, a backrest groove 207, a main framework mounting hole 208, and a backrest and cushion hooking belt 209. The bottom side armor assembly connecting block 201 has three threaded holes, the threaded holes at both ends are used for fixing with the chair basin, and the threaded hole in the middle is used for connecting with the bottom left armor assembly 6 or the bottom right armor assembly 7. The side armor connecting block 202 is fixed on the chair basin through three countersunk head screws, and has a locking pin hole at the same time, which is used for fixing with the left side armor assembly 3 and the right side armor assembly 4, and realizes quick disassembly. The safety belt connecting block 203 is installed at both ends of the seat, and has a recessed surface, the recessed structure is used for reinforcing the structure of the seat, and has the same structure as the bottom side armor assembly connecting block 201, the side armor connecting block 202 and the main framework mounting hole 208. The bottom middle armor assembly connecting block 204 is used for installing the bottom middle armor assembly 5, the safety belt connecting hole 205 is used for installing the five-point safety belt 11, the main framework mounting hole 208 is used for connecting with the seat main framework 1, and the cushion hooking belt 209 is used for connecting with the seat cushion 12 and the backrest cushion 13. The anti-crash avoidance boss 206 has a boss on the front surface of the multifunctional back folding chair basin 2, and has a recess on the back surface of the multifunctional back folding chair basin 2, so as to avoid interference with the chair leg of the main framework 1, and increase the energy absorption stroke of the seat. The backrest groove 207 has a large area of depression on the upper surface of the chair basin, which is used for enhancing the structure of the chair basin, and increasing the thickness of the seat cushion 12, and further improving the riding comfort of the seat.

[0065] Example 4

[0066] As Figures 5-7 shown, on the basis of example 1, the specific structure of the side armor assembly is further defined, and the performance of the defined example 1 is more excellent.

[0067] Further, the side armor assembly includes side ballistic armor, upper support arm 402A, lower support arm 402B, right side rotating shaft 403, support frame 404, left side rotating shaft 406, quick release pin, upper fixing seat 408 and lower fixing seat 409, the upper fixing seat 408 is arranged above the lower fixing seat 409, the upper support arm 402A is arranged above the lower support arm 402B, one end of the upper support arm 402A and one end of the lower support arm 402B are respectively hinged to the upper fixing seat 408 and the lower fixing seat 409 through the left side rotating shaft 406, two ends of the support frame 404 are respectively hinged to the upper support arm 402A and the lower support arm 402B, the other end of the upper support arm 402A and the other end of the lower support arm 402B are respectively hinged to the upper end and the lower end of the side ballistic armor through the right side rotating shaft 403, the upper fixing seat 408 and the lower fixing seat 409 are respectively connected to the two side armor connecting blocks 202 on the multifunctional rear flip chair basin 2 through the first quick release pin 407A and the second quick release pin 407B, a third quick release pin 407C is arranged between the upper support arm 402A and the upper fixing seat 408 or between the lower support arm 402B and the lower fixing seat 409, the side armor assembly is installed and disassembled through the third quick release pin 407C, so that the side armor assembly is locked and fixed in the unfolded position and the folded position; the side ballistic armor rotates around the left side rotating shaft 406 through the upper support arm 402A and the lower support arm 402B, so as to unfold and fold the fixing device.

[0068] Further, the left side armor assembly 3 and the right side armor assembly 4 are symmetrically arranged, wherein the right side armor assembly 4 mainly includes right side ballistic armor 401, upper support arm 402A, lower support arm 402B, right side rotating shaft 403, support frame 404, gasket 405, left side rotating shaft 406, first quick release pin 407A, second quick release pin 407B, third quick release pin 407C, upper fixing seat 408A, lower fixing seat 408B and fixing screw nut 409A / 409B / 409C / 409D. One end of the upper fixing seat 408A and the lower fixing seat 408B is inserted into the side armor connecting block 202 hole, and is fixed by the quick release pin 407A / 407B, so as to be connected with the multifunctional rear flip chair basin 2. The upper support arm 402A and the lower support arm 402B are connected to the upper fixing seat 408A and the lower fixing seat 408B through the left side rotating shaft 406; at the same time, the upper support arm 402A and the lower support arm 402B are connected to the right side ballistic armor 401 through the right side rotating shaft 403, and the connection of each component is fixed by the fixing screw nut 409A / 409B / 409D. The support frame 404 is fixed between the upper support arm 402A and the lower support arm 402B by the screw nut 409C. Through the connection of each component, a parallelogram structure can be formed, two vertices of the parallelogram are fixed by the left side rotating shaft 406, the other two vertices of the parallelogram are movable by the right side rotating shaft 403, so as to unfold and fold the armor. The quick release pin 407C can be used for fixing the unfolding and folding.

[0069] Example 5

[0070] As Figures 8-9 shown, the specific structure of the height adjustment compensation mechanism is further defined based on Embodiment 1, and the performance of the defined Embodiment 1 is more excellent.

[0071] Further, the height adjustment compensation mechanism includes two first fixed hooks 801A, one second fixed hook 801B, one third fixed hook 801C, two spring rope fixing hooks 802, a spring rope 803, and a sliding hook 804. The two first fixed hooks 801A are fixedly arranged on the upper end of the cup back of the multifunctional rear flip chair basin. The two ends of the spring rope 803 are connected with the two first fixed hooks 801 through the two spring rope fixing hooks 802, and the spring rope 803 is provided with the sliding hook 804.

[0072] The second fixed hook 801B and the third fixed hook 801C are fixedly arranged on the lower part of the multifunctional rear flip chair basin and the main skeleton 1. When the multifunctional rear flip chair basin is provided with armor, the sliding hook 804 is hung on the second fixed hook 801B, and the height adjustment compensation mechanism does not have the compensation function. When the multifunctional rear flip chair basin is disassembled from the armor, the sliding hook 804 is hung on the third fixed hook 801C, and the height adjustment compensation mechanism has the compensation function. The compensation form of the spring rope is used to compensate the force of the sitting height adjustment mechanism. The state of the height adjustment compensation mechanism is switched by hanging the sliding hook 804 on the second fixed hook 801B or the third fixed hook 801C. The height adjustment compensation mechanism uses the compensation form of the spring rope to compensate the force of the sitting height adjustment mechanism, and the weight is relatively light. When the armor is provided, the height adjustment compensation mechanism does not compensate. When the armor is disassembled, the height adjustment compensation mechanism compensates.

[0073] Further, the height adjustment compensation mechanism 8 includes fixed hooks 801A / 801B / 801C, spring rope fixing hooks 802, a spring rope 803, and a sliding hook 804. The fixed hook 801A is fixed at the chair basin safety belt fixing hole, the fixed hook 801B is fixed below the chair basin, and the fixed hook 801C is fixed below the X-shaped piece of the main skeleton 1. The two ends of the spring rope 803 are pressed by the spring rope fixing hooks 802, first pass through the sliding hook 804, and then the spring rope fixing hooks 802 are fixed on the fixed hook 801A. The sliding hook 804 can be fixed on the fixed hook 801B and the fixed hook 801C according to the working conditions. The number of the height adjustment compensation mechanisms is two, which are symmetrically arranged on both sides of the multifunctional rear flip chair basin and arranged on the back side of the multifunctional rear flip chair basin.

[0074] Embodiment 6

[0075] As Figures 10-13Further increase the specific structure of the chair leg lock on the basis of embodiment 1, the performance of the limited embodiment 1 is more excellent.

[0076] Further, two chair leg locks are arranged on each slide rail, one in front of the other, respectively front chair leg lock and rear chair leg lock; the number of slide rails is two, arranged side by side below the main skeleton;

[0077] The chair leg lock comprises a chair leg lock slider, a chair leg lock transition block 902, a chair leg lock fixed block 903 and a pin shaft 904, the chair leg lock transition block 902 is connected with the chair leg lock slider through the pin shaft 904, the chair leg lock slider is arranged on the slide rail and can move back and forth along the slide rail, the chair leg lock fixed block 903 is connected with the chair leg lock transition block 902 through a rotating shaft, and the chair leg lock fixed block 903 is connected with the main skeleton 1; the length direction of the rotating shaft is perpendicular to the length direction of the slide rail, the length direction of the pin shaft is consistent with the length direction of the slide rail, both ends of the pin shaft 904 are provided with shaft check rings 9010 to prevent the pin shaft from being pulled out of the chair leg lock transition block 902 and the chair leg lock slider; the performance requirement that the floor rolling angle and the pitch angle are respectively 10° is met.

[0078] Further, one of the chair leg locks further comprises a steel cable sleeve fixed block 905, the steel cable sleeve fixed block 905 is arranged on the chair leg lock slider, the steel cable sleeve fixed block 905 is provided with a latch assembly 908 and a spring 909 inside, the lower end of the latch assembly 908 is connected with the chair leg lock slider, and the spring 909 is sleeved on the latch assembly 908;

[0079] The chair leg lock slider is provided with a sliding needle fixed block 906, the sliding needle fixed block 906 is arranged between the chair leg lock slider and the slide rail, the sliding needle 907 is installed in the hole of the sliding needle fixed block 906, and the chair leg lock slider is in contact with the slide rail through the sliding needle 907; the sliding friction is changed into rolling friction, so that the front and rear sliding is smooth.

[0080] Further, the rear chair leg lock 9 comprises a rear chair leg lock slider 901, a chair leg lock transition block 902, a chair leg lock fixing block 903, a pin shaft 904, a steel cable sleeve fixing block 905, a sliding needle fixing block 906, a sliding needle 907, a latch assembly 908, a spring 909 and an axle stop ring 9010. The rear chair leg lock slider 901 can slide on the slide rail 14, the rear chair leg lock slider 901 is connected with the chair leg lock transition block 902 through the pin shaft 904 and the axle stop ring 9010, the upper end of the chair leg lock transition block 902 is inserted into the hole of the chair leg lock fixing block 903, the chair leg lock fixing block 903 is connected with the main framework 1, and the fixing of the slider is realized. The sliding needle 907 is installed in the hole of the sliding needle fixing block 906, and the sliding needle fixing block 906 is connected with the bottom of the rear chair leg lock slider 901 through a countersunk screw. The steel cable sleeve fixing block 905 is connected with the main framework 1, the cavity of the steel cable sleeve fixing block 905 has the latch assembly 908 and the spring 909, and the pin of the latch assembly 908 is inserted into the hole of the rear chair leg lock slider 901.

[0081] Further, the front chair leg lock 10 comprises a chair leg lock transition block 902, a chair leg lock fixing block 903, a pin shaft 904, an axle stop ring 9010, a front chair leg lock slider 1001 and a sliding needle fixing block 1002. The front chair leg lock slider 1001 can slide on the slide rail 14, the front chair leg lock slider 1001 is connected with the chair leg lock transition block 902 through the pin shaft 904 and the axle stop ring 9010, the upper end of the chair leg lock transition block 902 is inserted into the hole of the chair leg lock fixing block 903, the chair leg lock fixing block 903 is connected with the main framework 1, and the fixing of the slider is realized. The sliding needle 907 is installed in the hole of the sliding needle fixing block 1002, and the sliding needle fixing block 1002 is connected with the bottom of the rear chair leg lock slider 901 through a countersunk screw.

[0082] Working principle of the present application:

[0083] As Figure 1 and Figure 2As shown, an armor detachable crashworthy seat includes a seat main frame 1, a multifunctional rear flip seat pan 2, a left side armor assembly 3, a right side armor assembly 4, a bottom middle armor assembly 5, a bottom left armor assembly 6, a bottom right armor assembly 7, a height adjustment compensation mechanism 8, a rear seat leg lock 9, a front seat leg lock 10, a five-point safety belt 11, a seat cushion 12, a backrest cushion 13, and a slide rail 14, etc. Among them, the left side armor assembly 3 and the right side armor assembly 4 can be quickly detached by removing the first quick-release pin 407A and the second quick-release pin 407B, and the bottom middle armor assembly 5, the bottom left armor assembly 6, and the bottom right armor assembly 7 can be detached by removing the corresponding screws. Therefore, the seat can have two different states, and the seat without armor state includes the seat main frame 1, the multifunctional rear flip seat pan 2, the height adjustment compensation mechanism 8, the rear seat leg lock 9, the front seat leg lock 10, the five-point safety belt 11, the seat cushion 12, the backrest cushion 13, and the slide rail 14, etc.

[0084] As shown in Figure 4 and Figure 5 , the left side armor assembly 3 and the right side armor assembly 4 are symmetrically arranged and can be folded. Taking the right side armor assembly 4 as an example, pull out the third quick-release pin 407C from the unfolded locking hole, and wave the right side ballistic armor 401 upwards to a certain position, then put the third quick-release pin 407C into the folding locking hole. The principle is that the two right side rotating shafts 403 and the two left side rotating shafts 406 form two vertices of a parallelogram, the two left side rotating shafts 406 are fixed, and changing the two right side rotating shafts 403 can realize the rotation of the parallelogram, thereby realizing the unfolding and folding of the armor.

[0085] As shown in Figure 6 , the seat with armor is adjusted in height using gas springs, at this time the height adjustment compensation mechanism 8 does not work, that is, the sliding hook 804 is hung on the second fixed hook 801B. If the armor is detached, the movable part of the seat is relatively light, which may cause the weight of the occupant to be insufficient to overcome the force of the gas spring, resulting in failure of the lifting adjustment. Therefore, the height adjustment compensation mechanism 8 must be used for compensation. Since the first fixed hook 801A and the second fixed hook 801B move with the seat pan, the third fixed hook 801C is fixed, and the sliding hook 804 is hung on the third fixed hook 801C, at this time the spring rope 803 generates a pulling force, giving the seat pan a downward force, which can realize the height sliding adjustment function.

[0086] As shown in Figure 7As shown, the rear chair leg lock 9 includes a rear chair leg lock slider 901, a chair leg lock transition block 902, a chair leg lock fixed block 903, a pin shaft 904, a cable sleeve fixed block 905, a sliding roller pin fixed block 906, a sliding roller pin 907, a latch assembly 908, a spring 909 and an axle stop ring 9010. In the working conditions of pitch and roll, the chair leg lock transition block 902 and the rear chair leg lock slider 901 rotate along the pitch rotation shaft (the shaft at the upper end of the chair leg lock transition block 902) and the roll rotation shaft (the pin shaft 904) respectively, meeting the performance requirement that the floor roll angle and the pitch angle are 10° respectively. The lower surface of the slider adopts the sliding roller pin 907, changing the sliding friction to rolling friction, ensuring smooth forward and backward sliding.

[0087] As shown in the drawings, Figure 8 As shown, the front chair leg lock 10 includes a chair leg lock transition block 902, a chair leg lock fixed block 903, a pin shaft 904, a sliding roller pin 907, an axle stop ring 9010, a front chair leg lock slider 1001 and a sliding roller pin fixed block 1002. In the working conditions of pitch and roll, the chair leg lock transition block 902 and the front chair leg lock slider 1001 rotate along the pitch rotation shaft (the shaft at the upper end of the chair leg lock transition block 902) and the roll rotation shaft (the pin shaft 904) respectively, meeting the performance requirement that the floor roll angle and the pitch angle are 10° respectively. The lower surface of the slider adopts the sliding roller pin 907, changing the sliding friction to rolling friction, ensuring smooth forward and backward sliding.

[0088] In summary, the present application discloses an armored detachable anti-crash seat, which comprises a main framework, a multifunctional rear flip seat pan, a left side armor assembly, a right side armor assembly, a bottom middle armor assembly, a bottom left armor assembly, a bottom right armor assembly, a height adjustment compensation mechanism, a rear chair leg lock, a front chair leg lock and the like. The seat pan is made of composite material and is designed with local concave-convex structure to provide support for the armor and improve the anti-crash impact travel; all the armors of the seat are detachable, and the side armors can be quickly flipped and locked to provide a lifesaving channel for personnel escape; the seat is provided with a height adjustment compensation mechanism, which meets the height adjustment requirements of the seat with and without protective armor; the chair leg lock is adapted to the I-shaped slide rail and meets the performance requirement that the floor roll angle and the pitch angle are 10° respectively; the chair leg lock is provided with a roller pin, effectively reducing the friction.

[0089] The above merely describes preferred embodiments of the present application and should not be used to limit the scope of the present application. Any equivalent changes made within the scope of the patent application of the present application shall still fall within the protection scope of the present application.

Claims

1. An armor removable crashworthy seat, characterized by, The multifunctional back folding chair basin (2) is arranged on the main skeleton (1), a height adjusting compensation mechanism (8) is connected between the multifunctional back folding chair basin (2) and the main skeleton (1), the slide rail (14) is arranged below the main skeleton, and the lower end of the main skeleton is arranged on the slide rail through the chair leg lock; The multifunctional back folding chair basin (2) is arranged on the main skeleton (1), a height adjusting compensation mechanism (8) is connected between the multifunctional back folding chair basin (2) and the main skeleton (1), the slide rail (14) is arranged below the main skeleton, and the lower end of the main skeleton is arranged on the slide rail through the chair leg lock; The height adjusting compensation mechanism comprises two first fixed hooks (801A), one second fixed hook (801B), one third fixed hook (801C), two spring rope fixed hooks (802), a spring rope (803) and a sliding hook (804), the two first fixed hooks (801A) are fixedly arranged on the upper end of the cup back of the multifunctional back folding chair basin, the two ends of the spring rope (803) are connected with the two first fixed hooks (801A) through the two spring rope fixed hooks (802) respectively, and the spring rope (803) is provided with the sliding hook (804) penetrating thereon; The second fixed hook (801B) and the third fixed hook (801C) are fixedly arranged on the lower part of the multifunctional back folding chair basin and the main skeleton (1); when the multifunctional back folding chair basin is provided with armor, the sliding hook (804) is hung on the second fixed hook (801B), and the height adjusting compensation mechanism does not have a compensation function; when the multifunctional back folding chair basin is disassembled from the armor, the sliding hook (804) is hung on the third fixed hook (801C), and the height adjusting compensation mechanism has a compensation function.

2. The demountable crashworthy seat with armor according to claim 1, characterized in that, The bottom left armor assembly (6) and the bottom right armor assembly (7) are detachably connected to the multifunctional back folding chair basin (2), and the bottom left armor assembly (6) and the bottom right armor assembly (7) are arranged below the left side armor assembly (3) and the right side armor assembly (4) respectively.

3. The demountable crashworthy seat with armor according to claim 2, characterized in that, The multifunctional back folding chair basin is provided with side armor connecting blocks (202) on both sides, which are used for connecting the left side armor assembly (3) and the right side armor assembly (4), and the multifunctional back folding chair basin is provided with a bottom middle armor assembly connecting block (204) at the lower part, which is used for connecting the bottom middle armor assembly (5). The multifunctional back folding chair basin is provided with bottom side armor assembly connecting blocks (201) at the lower part of the bottom, which are used for connecting the bottom left armor assembly (6) and the bottom right armor assembly (7).

4. The demountable crashworthy seat of claim 1, wherein, The multifunctional back folding chair basin (2) is further provided with a safety belt, a seat cushion (12) and a backrest cushion (13).

5. The demountable crashworthy seat of claim 4, wherein, The multifunctional back folding chair basin is provided with mounting belt connecting blocks (203) on both sides, and the upper end of the multifunctional back folding chair basin is provided with safety belt connecting holes (205), the mounting belt connecting blocks (203) and the safety belt connecting holes (205) are used for mounting a safety belt, and the seat surface and the backrest surface of the multifunctional back folding chair basin are provided with seat cushion hooking belts (209) and backrest hooking belts, which are used for mounting the seat cushion (12) and the backrest cushion (13).

6. The demountable crashworthy seat of claim 1, wherein, The multifunctional back folding chair basin is further provided with a main framework mounting hole (208) for connecting with the main framework; The multifunctional back folding chair basin is further provided with a main framework mounting hole (208) for connecting with the main framework; The multifunctional back folding chair basin is further provided with a main framework mounting hole (208) for connecting with the main framework; 7. The demountable crashworthy seat of claim 1, wherein, The side armor assembly comprises a side bulletproof armor, an upper supporting arm (402A), a lower supporting arm (402B), a right rotating shaft (403), a supporting frame (404), a left rotating shaft (406), a quick-release pin, an upper fixing seat (408) and a lower fixing seat (409). The upper fixing seat (408) is arranged above the lower fixing seat (409). One end of the upper supporting arm (402A) and one end of the lower supporting arm (402B) are respectively hinged to the upper fixing seat (408) and the lower fixing seat (409) through the left rotating shaft (406). The two ends of the supporting frame (404) are respectively hinged to the upper supporting arm (402A) and the lower supporting arm (402B). The other end of the upper supporting arm (402A) and the other end of the lower supporting arm (402B) are connected to the upper end and the lower end of the side bulletproof armor through the right rotating shaft (403) respectively. The upper fixing seat (408) and the lower fixing seat (409) are connected to the two side armor connecting blocks 202 on the multifunctional back folding chair basin (2) through the first quick-release pin (407A) and the second quick-release pin (407B) respectively. The third quick-release pin (407C) is arranged between the upper supporting arm (402A) and the upper fixing seat (408) or between the lower supporting arm (402B) and the lower fixing seat (409).

8. The demountable crashworthy seat of claim 1, wherein, Two chair leg locks are arranged on each slide rail, and are arranged in front and back, and are respectively front chair leg locks and rear chair leg locks; The chair leg lock comprises a chair leg lock sliding block, a chair leg lock transition block (902), a chair leg lock fixed block (903) and a pin shaft (904). The chair leg lock transition block (902) is connected to the chair leg lock sliding block through the pin shaft (904). The chair leg lock sliding block is arranged on the slide rail. The chair leg lock fixed block (903) is connected to the chair leg lock transition block (902) through a rotating shaft. The chair leg lock fixed block 903 is connected to the main framework (1).

9. The demountable crashworthy seat of claim 8, wherein, One of the chair leg locks further comprises a steel cable sleeve fixed block (905). The steel cable sleeve fixed block (905) is arranged on the chair leg lock sliding block. The steel cable sleeve fixed block (905) is provided with a latch assembly (908) and a spring (909) inside. The lower end of the latch assembly (908) is connected to the chair leg lock sliding block. The spring (909) is sleeved on the latch assembly (908). The chair leg lock sliding block is provided with a sliding needle fixed block (906). The sliding needle fixed block (906) is arranged between the chair leg lock sliding block and the slide rail. The sliding needle (907) is arranged in the hole of the sliding needle fixed block (906). The chair leg lock sliding block is in contact with the slide rail through the sliding needle (907).

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