Lightning protection seat with double air suspension structures

Abstract

The utility model provides a lightning protection seat with a double-air suspension structure, which comprises a seat, a double-layer air bag component arranged below the seat and provided with a second upper frame at the top, and a main lock device arranged between the seat and the second upper frame, the main lock device comprises a main lock head arranged on the bottom face of the seat, a main lock seat arranged on the upper portion of the second upper frame and provided with a sliding groove in the top face, a plurality of clamping blocks arranged in the sliding groove in a sliding mode, lock grooves formed in the side walls of the clamping blocks and connected with the main lock head in an embedded mode, and a driving assembly driving the clamping blocks to be close to one another so as to clamp and fix the main lock head. According to the anti-thunder seat with the double-air-suspension structure, by arranging the main lock device and the auxiliary lock device, rapid disassembly and assembly between the seat and the double-layer air bag assembly are achieved, and the seat is convenient to disassemble and replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lightning protection chair, especially to a double air suspension structure lightning protection chair. BACKGROUND

[0002] The anti-mine anti-ambush vehicle is a combat vehicle for soldiers to resist mines, simple explosive devices and other threats. When the anti-mine anti-ambush vehicle passes through a minefield, it will suffer a very large explosion impact. In order to prevent the personnel inside the vehicle from being injured, a special anti-mine seat needs to be installed in the vehicle.

[0003] The double air suspension structure lightning protection chair is a high-safety seat, mainly applied to special vehicles that need to resist explosion impact. The double air suspension structure refers to the use of two independent air chambers to achieve dynamic shock absorption through air pressure adjustment.

[0004] The Chinese patent with the authorization announcement number CN116039471B discloses a high-comfort anti-mine lightning protection chair, which includes a seat, a first shock-absorbing air bag and a second shock-absorbing air bag arranged on the lower part of the seat and fixed together. The first shock-absorbing air bag is fixed to the vehicle body of the anti-mine anti-ambush vehicle, and the second shock-absorbing air bag is fixed to the upper part of the first shock-absorbing air bag. The second shock-absorbing air bag is fixed to the lower part of the seat. The first shock-absorbing air bag maintains a constant air pressure inside, which can provide a buffer to resist the impact force generated by a mine explosion. The air pressure inside the second shock-absorbing air bag is adjustable, which can adjust the height of the seat and the hardness of the seat when sitting, thereby improving the comfort of sitting.

[0005] The second shock-absorbing air bag includes a second upper frame, a second lower frame, and a second scissor frame arranged between the second upper frame and the second lower frame. The second lower frame is used to fix with the first upper frame of the first shock-absorbing air bag, and the second upper frame is used to fix to the lower part of the seat. The fixing method of the second upper frame and the seat can adopt a bolt fixing method or a welding fixing method.

[0006] The existing technical solution in the above has the following defects: when performing an emergency task, the seat may be damaged. Since the second upper frame is fixed to the lower part of the seat by bolt fixing or welding, for the bolt fixing connection method, workers need to remove multiple bolts with a wrench to disassemble and replace the seat. For the welding fixed connection method, workers need to cut the weld with an angle grinder to disassemble the seat. The high-comfort anti-mine lightning protection chair has the problem of inconvenient disassembly and replacement of the seat. UTILITY MODEL CONTENTS

[0007] The utility model solves the problem of inconvenient disassembly and replacement of the seat in the prior art.

[0008] The above-mentioned utility model objective is achieved through the following technical solution: a lightning protection seat with a dual air suspension structure, comprising a seat, a double-layer airbag assembly disposed below the seat and having a second upper frame on top, a main locking device disposed between the seat and the second upper frame, the main locking device comprising a main lock head disposed on the bottom surface of the seat, a main lock seat disposed on the upper part of the second upper frame and having a sliding groove on the top surface, a plurality of clamping blocks slidably disposed in the sliding groove, a lock groove disposed on the side wall of the clamping block and engaged with the main lock head, and a drive assembly for driving the clamping blocks to approach each other to clamp and fix the main lock head.

[0009] The present invention is further configured such that: a threaded hole is provided on the side wall of the clamping block along the length direction of the main lock seat; the driving assembly includes a plurality of bearing seats disposed in the slide groove, a double-ended screw rotatably disposed on the bearing seats and threadedly connected to the plurality of clamping blocks through the threaded hole, and a drive motor disposed on the main lock seat and connected to the double-ended screw.

[0010] The present invention is further configured such that: an auxiliary locking device is provided between the seat and the second upper frame, the auxiliary locking device including an auxiliary locking socket and an auxiliary locking plug that are plugged into each other.

[0011] The present invention is further configured as follows: the auxiliary lock socket includes a seat shell disposed on the bottom surface of the seat and having an auxiliary lock insertion hole on the bottom surface, a locking ring hole circumferentially opened on the wall of the auxiliary lock insertion hole, and an inner lock post disposed on the top wall of the auxiliary lock insertion hole; the auxiliary lock plug includes a plug body disposed on the top surface of the second upper frame and inserted into the auxiliary lock insertion hole, a guide post groove opened on the top surface of the plug body, a sliding guide groove opened on the side wall of the plug body, a sliding post guide hole opened at the bottom of the sliding guide groove and communicating with the guide post groove, an extended sliding piece slidably disposed in the sliding guide groove and inserted into the locking ring hole, an extended sliding post slidably disposed in the sliding post guide hole and connected to the extended sliding piece, and a push post slidably disposed in the guide post groove and pushed by the inner lock post; the end face of the extended sliding post away from the extended sliding piece is inclined towards the extended sliding piece; the push post has a guide surface inclined towards the center of the push post and abutting against the inclined surface of the extended sliding post.

[0012] The present invention is further configured such that: a plurality of tension spring grooves are provided on the bottom of the slide guide groove; a spring receiving head for inserting into the tension spring groove is provided on the end face of the extended slide facing the tension spring groove; and a slide tension spring is provided between the spring receiving head and the bottom of the tension spring groove to pull the extended slide towards the center of the plug body.

[0013] The present invention is further configured such that a top spring for pushing the pusher column upward is provided between the bottom of the pusher column and the guide column groove.

[0014] The present invention is further configured such that: a locking pin slot is provided circumferentially on the cylindrical surface of the inner locking pin, and a locking pin head is provided on the top of the push pin. The locking pin head includes a shell disposed on the top of the push pin and having a shell cavity, a through-hole opened on the top surface of the shell and communicating with the shell cavity, a sliding buckle guide groove opened on the cavity wall, a locking pin buckle slidably disposed in the sliding buckle guide groove, and a drive buckle assembly that drives the locking pin buckle to reciprocate linearly along the sliding buckle guide groove to insert into the locking pin slot.

[0015] The present invention is further configured such that: a side groove is provided on the cavity wall of the shell cavity, the upper end of which communicates with the sliding guide groove; the drive buckle assembly includes a drive buckle slider that is slidably disposed in the shell cavity and has an insertion hole on its top surface, and a connecting rod disposed in the side groove; one end of the connecting rod is hinged to the drive buckle slider, and the other end is hinged to the lock pin buckle through a hinge seat; the hinge point between the connecting rod and the drive buckle slider is located on the lower side inside the hinge point between the connecting rod and the lock pin buckle.

[0016] The present invention is further configured such that: a spring post is provided on the bottom surface of the drive block slider, and a top block spring is sleeved on the spring post, one end of which abuts against the drive block slider and the other end of which abuts against the bottom wall of the shell cavity.

[0017] The present invention is further configured such that: a top cover is provided on the top surface of the plug body to press and fix the locking pin head in the guide pin groove, and the top surface of the top cover is provided with a through pin hole that is aligned with the through pin hole and allows the inner locking pin to pass through.

[0018] In summary, the beneficial technical effects of this utility model are as follows: This dual air suspension structure lightning protection seat achieves quick assembly and disassembly between the seat and the dual-layer airbag assembly by setting a main locking device and an auxiliary locking device, making seat disassembly and replacement more convenient. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the dual air suspension structure lightning protection seat in this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the second upper frame, the main locking device, and the auxiliary locking device in this utility model;

[0021] Figure 3 This is a partial cross-sectional structural diagram of the main locking device in this utility model;

[0022] Figure 4 This is a cross-sectional view of the auxiliary lock socket and auxiliary lock plug in this utility model;

[0023] Figure 5 This is a cross-sectional view of the auxiliary locking plug in this utility model;

[0024] Figure 6 This is a schematic diagram of the auxiliary locking plug without the plug body in this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the lock pin head with one half of the shell removed in this utility model.

[0026] In the above figures: 1. Seat; 2. Double-layer airbag assembly; 3. Second upper frame; 4. Main locking device; 5. Auxiliary locking device; 6. Main lock head; 7. Seat plate; 8. Main lock seat; 9. Slide groove; 10. Slide rail; 11. Clamping block; 12. Lock groove; 13. Threaded hole; 14. Bearing seat; 15. Double-ended screw; 16. Drive motor; 17. Auxiliary lock socket; 18. Auxiliary lock plug; 19. Seat shell; 20. Shell flange; 21. Auxiliary lock insertion hole; 22. Locking ring hole; 23. Inner lock pin; 24. Lock pin slot; 25. Plug body; 251. Plug flange; 26. Guide pin groove; 27. Sliding plate guide groove; 28. Sliding column guide hole; 29. ​​Tension spring groove; 30. Extended sliding piece; 301. Spring head; 31. Sliding piece tension spring; 32. Extended sliding column; 33. Push plate column; 331. Guide surface; 34. Limiting groove; 35. Countersunk screw hole; 36. Countersunk screw; 37. Top column spring; 38. Locking column head; 39. Outer shell; 391. Half shell; 40. Shell cavity; 41. Through column hole; 42. Sliding buckle guide groove; 43. Side groove; 44. Locking column buckle; 45. Hinge seat; 46. Drive buckle slider; 47. Inserting column hole; 48. Spring column; 49. Top block spring; 50. Hinge groove; 51. Top cover; 52. Through column hole. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] like Figure 1 As shown, this utility model proposes a lightning protection seat with a dual air suspension structure, including a seat 1 and a double-layer airbag assembly 2 disposed below the seat 1 and having a second upper frame 3 on the top. The double-layer airbag assembly 2 is a first shock-absorbing airbag and a second shock-absorbing airbag that are stacked and fixed together in the prior art.

[0029] like Figure 1 and 2 As shown, a main locking device 4 and an auxiliary locking device 5 are provided between the second upper frame 3 and the seat 1.

[0030] like Figure 2 As shown, in this embodiment, there are two main locking devices 4, which are symmetrically arranged. Each main locking device 4 includes a main lock head 6, a main lock seat 8, a clamping block 11, and a drive assembly.

[0031] like Figure 3As shown, in this embodiment, the main lock head 6 is composed of two cylinders with a larger diameter at the bottom and a smaller diameter at the top. The top of the main lock head 6 is fixedly connected to a seat plate 7 that is connected to the bottom surface of the seat 1. The seat plate 7 is fixed to the bottom surface of the seat 1 by screws or welding.

[0032] like Figure 3 As shown, the main lock seat 8 is fixed to the top surface of the second upper frame 3 by screws or welding. A sliding groove 9 is provided on the top surface of the main lock seat 8. A slide rail 10 is fixedly connected to the bottom of the sliding groove 9. A pair of clamping blocks 11 that slide and cooperate with the slide rail 10 are slidably arranged in the sliding groove 9. Lock grooves 12 that engage with the main lock head 6 are provided on the opposite side walls of the clamping blocks 11. Threaded holes 13 are provided on the side walls of the clamping blocks 11 along the length direction of the main lock seat 8.

[0033] like Figure 3 As shown, the drive assembly is used to drive the clamping blocks 11 to move closer together to clamp and fix the main lock head 6. The drive assembly includes bearing seats 14, double-ended screws 15, and drive motors 16. In this embodiment, there are two bearing seats 14, which are screwed to the bottom of the slide groove 9 and respectively installed at both ends of the slide rail 10. In this embodiment, the double-ended screws 15 are rotatably mounted on the two bearing seats 14. The double-ended screws 15 are screws with two threads, and the two threads of the double-ended screws 15 are threaded to the clamping blocks 11 through threaded holes 13. Since the clamping blocks 11 are slidably mounted in the slide groove 9 through the slide rail 10, the rotation of the double-ended screws 15 will drive the two clamping blocks 11 to move closer together. After passing through the bearing seats 14, the double-ended screws 15 are connected to the drive motor 16. The drive motor 16 is screwed to the top surface of the main lock seat 8 and is used to drive the double-ended screws 15 to rotate.

[0034] In this embodiment, the detailed working process of the main locking device 4 is as follows: the worker places the main lock head 6 between the two clamping blocks 11, and then starts the drive motor 16 to drive the double-headed screw 15 to rotate forward. Since the clamping blocks 11 are slidably set in the slide groove 9 through the slide rail 10, the rotation of the double-headed screw 15 will drive the two clamping blocks 11 to move closer to each other until the main lock head 6 is half embedded in the lock groove 12 of the two clamping blocks 11. At this time, the two clamping blocks 11 clamp and fix the main lock head 6.

[0035] like Figure 2 As shown, in this embodiment, there are four auxiliary locking devices 5, which are arranged symmetrically in pairs. Each auxiliary locking device 5 includes an auxiliary locking socket 17 and an auxiliary locking plug 18.

[0036] like Figure 4As shown, the auxiliary lock socket 17 includes a cylindrical housing 19. A housing flange 20 is fixedly connected to one end of the outer wall of the housing 19 near the seat 1, and the housing flange 20 is screwed to the bottom surface of the seat. The bottom surface of the housing 19 has an auxiliary lock insertion hole 21 with a circular cross-section, and the wall of the auxiliary lock insertion hole 21 has a locking ring hole 22 with a circular cross-section circumferentially formed. A cylindrical inner lock pin 23 is coaxially fixed to the top wall of the auxiliary lock insertion hole 21, and the cylindrical surface of the inner lock pin 23 has a lock pin groove 24 circumferentially formed.

[0037] like Figure 4 As shown, the auxiliary lock plug 18 includes a cylindrical plug body 25, which is inserted into the auxiliary lock socket 21. A plug flange 251 is fixedly connected to the bottom of the outer side wall of the plug body 25, and the plug flange 251 is screwed to the top surface of the second upper frame 3. A guide groove 26 is provided at the center of the end face of the plug body 25 facing the auxiliary lock socket 17, and the cross-section of the guide groove 26 is circular.

[0038] like Figure 4 and 5 As shown, in this embodiment, three sliding guide grooves 27 are equidistantly circumferentially formed on the outer side wall of the plug body 25. Each sliding guide groove 27 has a sliding post guide hole 28 communicating with the guide post groove 26 on the bottom of the groove. Each sliding guide groove 27 has a pair of tension spring grooves 29 symmetrically formed on the bottom of the groove. The two tension spring grooves 29 are symmetrically distributed on both sides of the sliding post guide hole 28.

[0039] like Figure 4 and 5 As shown, each sliding guide groove 27 has an extended sliding piece 30 that is slidably disposed therein, which is inserted into the locking ring hole 22. Each extended sliding piece 30 has a pair of cylindrical spring receiving heads 301 symmetrically disposed on the end face of the spring receiving head 30 facing the spring groove 29. The spring receiving head 301 is inserted into the spring groove 29 and slides in cooperation with the spring groove 29. A sliding spring 31 is disposed between the spring receiving head 301 and the bottom of the groove 29. One end of the sliding spring 31 is fixedly connected to the bottom of the groove 29, and the other end is fixedly connected to the spring receiving head 301. The sliding spring 31 pulls the extended sliding piece 30 towards the center of the plug body 25 through the spring receiving head 301.

[0040] like Figure 4 and 5 As shown, each extended slide plate 30 has an extended slide post 32 fixedly connected to its end face facing the guide post groove 26. The extended slide post 32 is slidably engaged with the slide post guide hole 28. The end face of the extended slide post 32 facing away from the extended slide plate 30 is inclined towards the extended slide plate 30.

[0041] like Figure 4 and 6As shown, a pusher post 33 is slidably disposed in the guide post groove 26. In this embodiment, the pusher post 33 has three guide surfaces 331 that are equidistantly distributed in a circle. The three guide surfaces 331 are respectively disposed corresponding to the three extended sliding posts 32. The guide surfaces 331 are inclined towards the center of the pusher post 33 and the guide surfaces 331 abut against the inclined surfaces of the extended sliding posts 32 that are away from the extended sliding pieces 30.

[0042] like Figure 4 and 6 As shown, in this embodiment, three limiting grooves 34 are equidistantly circumferentially formed on the cylindrical surface of the pusher post 33, and three countersunk screw holes 35 are equidistantly circumferentially formed on the outer side wall of the plug body 25. The three countersunk screw holes 35 are respectively aligned with the three limiting grooves 34. A countersunk screw 36 with its end slidingly engaged with the limiting groove 34 is threaded into the countersunk screw hole 35, thus restricting the rotation of the pusher post 33.

[0043] like Figure 4 As shown, a top spring 37 is provided between the bottom surface of the pusher post 33 and the bottom of the guide post groove 26. One end of the top spring 37 abuts against the bottom surface of the pusher post 33, and the other end abuts against the bottom of the guide post groove 26. The top spring 37 is used to push the pusher post 33 upward.

[0044] like Figure 4 and 7 As shown, the top of the pusher post 33 is provided with a locking head 38 for locking and fixing the inner locking post 23. The locking head 38 includes a cylindrical outer shell 39, which is composed of a pair of glued half-shells 391. The bottom surface of the outer shell 39 is glued to the top surface of the pusher post 33. The center of the outer shell 39 has a shell cavity 40 with a circular cross-section. The center of the top surface of the outer shell 39 has a through hole 41 with a circular cross-section that communicates with the shell cavity 40. The shell cavity 40 and the through hole 41 are respectively opened on the two half-shells 391.

[0045] like Figure 4 and 7 As shown, two circular cross-section sliding guide grooves 42 are symmetrically formed on the cavity wall of the shell cavity 40, and two side grooves 43 are symmetrically formed on the cavity wall of the shell cavity 40. The two side grooves 43 are located below the two sliding guide grooves 42 respectively. The side grooves 43 are rectangular grooves whose upper ends are connected to the sliding guide grooves 42. The thickness of the side grooves 43 is less than the diameter of the sliding guide grooves 42. The sliding guide grooves 42 and the side grooves 43 are formed in half on the two half shells 391.

[0046] like Figure 4 and 7 As shown, each sliding guide groove 42 is slidably provided with a bullet-shaped locking pin buckle 44, which is engaged with the locking pin slot 24 of the inner locking pin 23. A hinge seat 45 extending into the side groove 43 is fixedly connected to the side wall of the locking pin buckle 44.

[0047] like Figure 4 and 7 As shown, a drive buckle assembly is provided in the outer casing 39. The drive buckle assembly is used to drive the locking pin buckle 44 to reciprocate linearly along the sliding buckle guide groove 42, thereby controlling the locking pin buckle 44 to insert into the locking pin slot 24 or to withdraw from the locking pin slot 24.

[0048] The buckle assembly includes a buckle slider 46 and a connecting rod.

[0049] The drive slider 46 is cylindrical and slidably disposed in the housing cavity 40. A insertion hole 47 with a circular cross-section is provided on the end face of the drive slider 46 facing the through hole 41. A spring post 48 is coaxially fixed to the end face of the drive slider 46 facing the pusher post 33. A top spring 49 is sleeved on the spring post 48. One end of the top spring 49 abuts against the drive slider 46, and the other end abuts against the bottom wall of the housing cavity 40. The top spring 49 is used to push the drive slider 46 upward.

[0050] Two hinge slots 50 are symmetrically opened on the side wall of the drive slider 46. One end of the connecting rod is hinged to the drive slider 46 through a pin fixed in the hinge slot 50, and the other end is hinged to the lock pin buckle 44 through the hinge seat 45. The hinge point between the connecting rod and the drive slider 46 is located inside the lower side of the hinge point between the connecting rod and the lock pin buckle 44.

[0051] like Figure 4 As shown, a top cover 51 is screwed onto the top surface of the plug body 25. The top cover 51 presses and fixes the locking pin head 38 into the guide pin groove 26. A through-pin hole 52 with a circular cross-section is opened through the center of the top cover 51. The through-pin hole 52 is aligned with the through-pin hole 41. The through-pin hole 52 is used for the inner locking pin 23 to pass through.

[0052] The detailed installation process of the auxiliary lock device 5 in this embodiment is as follows:

[0053] S1: The worker aligns the auxiliary lock socket 17 and the auxiliary lock plug 18, and then lowers the seat 1 until the plug body 25 is inserted into the auxiliary lock socket 21 of the seat shell 19. At the same time, the inner lock pin 23 passes through the through pin hole 52 and the through pin hole 41 in sequence and is inserted into the plug hole 47. The inner lock pin 23 pushes the drive latch slider 46 to move closer to the push plate pin 33 until the bottom surface of the spring pin 48 abuts against the bottom wall of the shell cavity 40. During this process, since the hinge point of the connecting rod and the drive latch slider 46 is located inside and below the hinge point of the connecting rod and the lock pin buckle 44, the connecting rod will drive the two lock pin buckles 44 to insert into the lock pin slot 24 of the inner lock pin 23. At this time, the lock pin head 38 completes the locking and fixing work of the inner lock pin 23.

[0054] S2: As the auxiliary lock socket 17 continues to descend, the inner lock pin 23 will push the lock pin head 38 and the push plate pin 33 downward until the locking ring hole 22 is aligned with the slide guide groove 27. During this process, since the guide surface 331 of the push plate pin 33 is inclined towards the center of the push plate pin 33 and the guide surface 331 abuts against the inclined surface of the extended slide pin 32 away from the extended slide plate 30, the downward movement of the push plate pin 33 will push the extended slide pin 32 and the extended slide plate 30 to move away from the push plate pin 33. Then the extended slide plate 30 slides out of the slide guide groove 27 and inserts into the locking ring hole 22. At this time, the locking and fixing work between the auxiliary lock socket 17 and the auxiliary lock plug 18 is completed.

[0055] When the two clamping blocks 11 of the main locking device 4 are clamped and fixed to the main lock head 6, the seat 1 is restricted from moving upward. At this time, the auxiliary lock socket 17 and the auxiliary lock plug 18 can maintain a locked and fixed state.

[0056] The detailed disassembly process of seat 1 in this embodiment is as follows:

[0057] S1: The drive motor 16 drives the double-headed screw 15 to reverse. The rotation of the double-headed screw 15 will drive the two clamping blocks 11 to separate until the main lock head 6 is completely separated from the lock grooves 12 of the two clamping blocks 11.

[0058] S2: When the worker lifts the seat 1 upwards, the weight of the seat 1 is not applied to the pusher post 33. The top spring 37, which is in a compressed state, will push the pusher post 33 upwards. Since the guide surface 331 of the pusher post 33 is inclined towards the center of the pusher post 33 and the guide surface 331 abuts against the inclined surface of the extended slide post 32 away from the extended slide 30, while the pusher post 33 is moving upwards, the slide tension spring 31 pulls the extended slide 30 towards the center of the plug body 25 through the spring head 301 until the extended slide 30 retracts into the slide guide groove 27.

[0059] S3: The worker continues to lift the seat 1 upwards. The weight of the seat 1 is not applied to the drive block slider 46. The top block spring 49, which is in a compressed state, will push the drive block upwards. Since the hinge point between the connecting rod and the drive block slider 46 is located on the lower side inside the hinge point between the connecting rod and the locking pin buckle 44, the connecting rod will drive the two locking pin buckles 44 to pull out the locking pin slot 24 of the inner locking pin 23.

[0060] S4: At this time, the double lock between the auxiliary lock socket 17 and the auxiliary lock plug 18 is released, and the worker can continue to lift the seat 1 upwards to remove the seat 1.

[0061] This dual-air-suspension lightning protection seat achieves quick assembly and disassembly between the seat 1 and the dual-layer airbag assembly 2 by setting a main locking device 4 and an auxiliary locking device 5, making it convenient to disassemble and replace the seat 1.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lightning protection seat with double air suspension structure, comprising a seat (1) and a double-layer air bag assembly (2) arranged below the seat (1) and having a second upper frame (3) at the top, characterized in that: The seat (1) and the second upper frame (3) are provided with a main locking device (4), the main locking device (4) comprises a main locking head (6) arranged on the bottom surface of the seat (1), a main locking seat (8) arranged on the upper portion of the second upper frame (3) and provided with a sliding groove (9) on the top surface, a plurality of clamping blocks (11) slidingly arranged in the sliding groove (9), a locking groove (12) arranged on the side wall of the clamping block (11) and embedded with the main locking head (6), and a driving assembly driving the clamping blocks (11) to move close to each other to clamp and fix the main locking head (6).

2. The lightning protection seat with dual air suspension structure according to claim 1, characterized in that: The side wall of the clamping block (11) is provided with a threaded hole (13) along the length direction of the main locking seat (8), the driving assembly comprises a plurality of bearing seats (14) arranged in the sliding groove (9), a double-headed screw rod (15) rotatably arranged on the bearing seat (14) and threadedly connected with the plurality of clamping blocks (11) through the threaded hole (13), and a driving motor (16) arranged on the main locking seat (8) and connected with the double-headed screw rod (15).

3. Lightning protection seat with double air suspension according to claim 1 or 2, characterized in that: The seat (1) and the second upper frame (3) are provided with an auxiliary locking device (5), the auxiliary locking device (5) comprises an auxiliary locking socket (17) and an auxiliary locking plug (18) which are inserted with each other.

4. The lightning protection seat with dual air suspension structure according to claim 3, characterized in that: The auxiliary locking socket (17) comprises a socket shell (19) arranged on the bottom surface of the seat (1) and provided with an auxiliary locking insertion hole (21) on the bottom surface, a locking ring hole (22) circumferentially arranged on the hole wall of the auxiliary locking insertion hole (21), and an inner locking column (23) arranged on the top wall of the auxiliary locking insertion hole (21), the auxiliary locking plug (18) comprises a plug body (25) arranged on the top surface of the second upper frame (3) and inserted with the auxiliary locking insertion hole (21), a guide column groove (26) arranged on the top surface of the plug body (25), a sliding piece guide groove (27) arranged on the side wall of the plug body (25), a sliding column guide hole (28) arranged on the groove bottom of the sliding piece guide groove (27) and communicated with the guide column groove (26), an outward sliding piece (30) slidingly arranged in the sliding piece guide groove (27) and inserted with the locking ring hole (22), an outward sliding column (32) slidingly arranged in the sliding column guide hole (28) and connected with the outward sliding piece (30), a push piece column (33) slidingly arranged in the guide column groove (26) and pushed by the inner locking column (23), an end surface of the outward sliding column (32) away from the outward sliding piece (30) is arranged to be inclined to the direction close to the outward sliding piece (30), and the push piece column (33) has a guide surface (331) arranged to be inclined to the direction close to the center of the push piece column (33) and abutting against the inclined surface of the outward sliding column (32).

5. The lightning protection seat with dual air suspension structure according to claim 4, characterized in that: A plurality of tension spring grooves (29) are arranged on the groove bottom of the sliding piece guide groove (27), an engaging spring head (301) of the outward sliding piece (30) is arranged on the end surface facing the tension spring grooves (29) and inserted into the tension spring grooves (29), and a sliding piece tension spring (31) is arranged between the engaging spring head (301) and the groove bottom of the tension spring grooves (29) to pull the outward sliding piece (30) to move to the direction close to the center of the plug body (25).

6. The lightning protection seat with dual air suspension structure according to claim 4, characterized in that: A top column spring (37) is arranged between the push piece column (33) and the groove bottom of the guide column groove (26) to push the push piece column (33) to move upward.

7. The lightning protection seat with dual air suspension structure according to claim 4, characterized in that: The inner locking column (23) is provided with a locking column clamping groove (24) on the cylindrical surface, the top of the push piece column (33) is provided with a locking column head (38), the locking column head (38) comprises an outer shell (39) provided on the top of the push piece column (33) and having a shell cavity (40), a through column hole (41) provided on the top surface of the outer shell (39) and communicating with the shell cavity (40), a sliding buckle guide groove (42) provided on the cavity wall of the shell cavity (40), a locking column buckle (44) slidingly arranged in the sliding buckle guide groove (42), and a buckle driving assembly for driving the locking column buckle (44) to make reciprocating linear motion along the sliding buckle guide groove (42) to insert into the locking column clamping groove (24).

8. The lightning protection seat with dual air suspension structure according to claim 7, characterized in that: The cavity wall of the shell cavity (40) is provided with a side recess (43) having an upper end communicating with the sliding buckle guide groove (42), the buckle driving assembly comprises a buckle sliding block (46) slidingly arranged in the shell cavity (40) and having an insertion column hole (47) provided on the top surface, and a connecting rod arranged in the side recess (43), one end of the connecting rod being hingedly connected with the buckle sliding block (46) and the other end being hingedly connected with the locking column buckle (44) through a hinge seat (45), and the hinge point of the connecting rod and the buckle sliding block (46) being located below the hinge point of the connecting rod and the locking column buckle (44).

9. The lightning protection seat of claim 8, wherein: The bottom surface of the buckle sliding block (46) is provided with a spring column (48), the spring column (48) is sleeved with a top block spring (49) having one end abutting against the buckle sliding block (46) and the other end abutting against the bottom wall of the shell cavity (40).

10. The lightning protection seat of claim 7, wherein: The top surface of the plug body (25) is provided with a top cover (51) for pressing and fixing the locking column head (38) in the guide column groove (26), the top surface of the top cover (51) is provided with a through column hole (52) aligned with the through column hole (41) and for the inner locking column (23) to pass through.

Images