Sliding damping seat of cab

Abstract

The invention discloses a cab sliding damping seat, and relates to the technical field of marine damping seats, an active damping mechanism is arranged outside a base, the active damping mechanism comprises a driving motor arranged outside the base, the output end of the driving motor is provided with a first bevel gear, and the side edge of the first bevel gear is in meshed connection with a second bevel gear; the side, close to the base, of the second bevel gear is fixedly connected with a transmission rod, the side, away from the second bevel gear, of the transmission rod is in transmission connection with a threaded rod, the upper portion of the threaded rod is in threaded connection with a moving block, and the side, close to the threaded rod, of the moving block is fixedly provided with a hydraulic rod. The rigidity of the seat is adjusted in advance, when collision occurs, the first spring instantly releases pre-pressure, impact force generated by collision is effectively absorbed and relieved, initial impact borne by a driver at the moment of collision can be intervened and reduced earlier, and driving safety is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of marine shock-absorbing seats, in particular to a sliding shock-absorbing seat in a cab. Background Art

[0002] The sliding shock-absorbing seat in the cab is a seat designed to improve driving comfort and safety. The sliding shock-absorbing seat in the cab has the function of sliding forward and backward, which helps the driver to adjust the seat position according to the needs during driving to achieve the best driving posture and comfort. The seat has a built-in shock-absorbing system, which can effectively absorb and alleviate the vibration and impact generated during the driving process of the vehicle and ship, and protect the driver's spine and body health. The shock-absorbing seat is one of the indispensable and important equipment in the cab. Its excellent shock-absorbing performance and adjustment function can significantly improve the driver's driving comfort and safety.

[0003] After searching, the invention patent with Chinese patent number CN108790963B discloses a vehicle and ship seat with a flexible buffer mechanism, which at least includes a seat body and a seat sliding mechanism. The seat body is fixed to the bottom plate of the cab through the seat sliding mechanism; the seat sliding mechanism at least includes a sliding assembly, the sliding assembly includes a slide rail and a slide frame, the slide rail is fixedly connected to the bottom plate of the cab, the slide frame cooperates with the slide rail, and a plurality of groups of flexible buffer mechanisms are installed on the slide frame, and the flexible buffer mechanism is connected to the seat body. A flexible buffer mechanism is added between the seat body and the seat sliding mechanism. Due to the setting of the flexible buffer mechanism, the influence of the vehicle and ship vibration on the driver is more effectively improved, the shock absorption performance of the seat is improved, and the driver is more comfortable.

[0004] However, in actual use, the above device adopts multiple flexible buffer mechanisms for shock absorption and buffering, and its response is after the collision has occurred, rather than preventing the collision when it is about to occur. At the moment of the collision, the seat and the personnel have already received the initial impact. This passive avoidance method leads to limited shock absorption effect and cannot completely avoid the contact between the driver and other parts in the vehicle or vessel (such as the steering wheel and the dashboard), thereby increasing the risk of injury. Therefore, a sliding shock-absorbing seat in the cab is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that the device adopts multiple flexible buffer mechanisms for shock absorption and buffering, and its reaction is after the collision has occurred, rather than preventing the collision when it is about to occur. At the moment of collision, the seat and the personnel have already received the initial impact. This passive avoidance method leads to limited shock absorption effect and cannot completely avoid the contact between the driver and other parts in the vehicle or vessel (such as the steering wheel, dashboard), thereby increasing the risk of injury. A cab sliding shock-absorbing seat is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A cab sliding shock-absorbing seat, comprising a base, an active shock-absorbing mechanism is arranged outside the base, the active shock-absorbing mechanism comprises a driving motor arranged outside the base, a first bevel gear is arranged at the output end of the driving motor, a second bevel gear is meshedly connected to the side of the first bevel gear, a transmission rod is fixedly connected to the side of the second bevel gear close to the base, a threaded rod is transmission-connected to the side of the transmission rod away from the second bevel gear, a moving block is threadedly connected to the top of the threaded rod, a hydraulic rod is fixedly installed on the side of the moving block close to the threaded rod, a compression block is fixedly connected to the side of the hydraulic rod away from the moving block, a first spring is arranged on the side of the compression block close to the hydraulic rod, and the operation of the driving motor causes the compression block to change from a static state to a moving state and compress the first spring;

[0008] An airbag seat base is arranged above the base, a seat body is fixedly connected to the side of the airbag seat base away from the base, a head pad is arranged on the side of the seat body away from the airbag seat base, a head protection mechanism is arranged outside the head pad, the head protection mechanism includes a mechanical bracket arranged outside the head pad, a damping hollow cylinder is rotatably connected to the side of the mechanical bracket, and a second spring is fixedly connected to the damping hollow cylinder on the side close to the mechanical bracket.

[0009] The above technical solution further includes:

[0010] A fixing plate is fixedly connected to the side of the base, the driving motor is fixedly installed inside the fixing plate, and the first bevel gear is rotationally connected to the base.

[0011] A third bevel gear is meshedly connected to a side of the first bevel gear away from the second bevel gear, and the third bevel gear can drive another group of compression blocks to move.

[0012] A fourth bevel gear is fixedly connected to a side of the transmission rod away from the second bevel gear, a fifth bevel gear is meshedly connected to a side edge of the fourth bevel gear, and the fifth bevel gear is fixedly connected to the threaded rod.

[0013] A slot plate is fixedly connected to one side of the base close to the fifth bevel gear, the threaded rod is rotationally connected to the base, and the moving block is slidingly connected to the slot plate.

[0014] A square groove is provided inside the base at one side close to the moving block, and the square groove is fixedly connected to the first spring.

[0015] The square groove is connected to a slide rail, which is fixedly connected to the base. A concave track plate is slidably connected above the slide rail, which is fixedly connected to the airbag seat base. A damping plate is fixedly connected to the bottom of the concave track plate, which is slidably connected to the square groove.

[0016] The head protection pad is fixedly connected to the mechanical support, and a sliding rod is slidably connected inside the damping hollow cylinder on one side close to the second spring.

[0017] A side of the slide bar close to the head protection pad is rotatably connected with a fixing piece, and the fixing piece is fixedly connected to the head protection pad.

[0018] A side of the transmission rod close to the second bevel gear is rotatably connected with a support plate, and the support plate is fixedly connected to the base.

[0019] The present invention has the following beneficial effects:

[0020] 1. In the present invention, the built-in active shock absorbing mechanism can intervene in advance when a collision is about to occur. When it is detected that a collision is about to occur, the drive motor starts, drives the threaded rod to rotate through the gear transmission system, and then drives the moving block and the hydraulic rod to move, so that the compression block compresses the first spring, thereby pre-adjusting the stiffness of the seat. When a collision occurs, the first spring instantly releases the pre-pressure, effectively absorbing and alleviating the impact force generated by the collision, and reducing the impact on the driver. Compared with the traditional passive shock absorbing method, this active shock absorbing method can intervene earlier and reduce the initial impact on the driver at the moment of collision, significantly improving driving safety.

[0021] 2. The present invention not only has an active shock absorption function, but also combines multiple shock absorption mechanisms such as an airbag seat base and a head protection mechanism. The airbag seat base can provide additional shock absorption effect during passive shock absorption, and absorb and disperse the impact force through the deformation and recovery of the internal airbag. At the same time, the damping hollow cylinder and the second spring in the head protection mechanism can reduce the vibration of the head pad during a collision and reduce the impact force on the head. These multiple shock absorption mechanisms work together to enable the driver to enjoy a smoother and more comfortable riding experience during driving.

[0022] 3. In the present invention, the stability and durability of the seat during operation are ensured by reinforcing the fixing plate, the supporting plate and other components, and the precise matching of the transmission rod, the threaded rod and other components. At the same time, the operation of the present invention is simple, and the active shock absorption function can be turned on and off by controlling the start and stop of the drive motor without complicated operating steps and additional maintenance costs. This design not only improves the practicality and convenience of the seat, but also reduces the difficulty of use and maintenance costs for the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a sliding shock-absorbing seat in a cab proposed by the present invention;

[0024] Figure 2 It is a schematic diagram of the external structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the first three-dimensional structure of the present invention;

[0026] Figure 4 is a schematic diagram of a second three-dimensional structure in the present invention;

[0027] Figure 5 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0028] Figure 6 for Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0029] Figure 7 for Figure 3 Enlarged schematic diagram of the structure at point C in the middle.

[0030] In the figure: 1. base; 2. fixing plate; 3. driving motor; 4. first bevel gear; 5. second bevel gear; 6. third bevel gear; 7. transmission rod; 8. fourth bevel gear; 9. fifth bevel gear; 10. threaded rod; 11. slot plate; 12. moving block; 13. hydraulic rod; 14. compression block; 15. first spring; 16. square slot; 17. airbag seat base; 18. seat body; 19. slide rail; 20. concave track plate; 21. damping plate; 22. head pad; 23. mechanical bracket; 24. damping hollow cylinder; 25. second spring; 26. slide rod; 27. fixing piece; 28. support plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] like Figure 1-Figure 7As shown, a cab sliding shock-absorbing seat proposed by the present invention comprises a base 1, an active shock-absorbing mechanism is arranged outside the base 1, the active shock-absorbing mechanism comprises a driving motor 3 arranged outside the base 1, a first bevel gear 4 is arranged at the output end of the driving motor 3, a second bevel gear 5 is meshedly connected to the side of the first bevel gear 4, a transmission rod 7 is fixedly connected to the side of the second bevel gear 5 close to the base 1, a threaded rod 10 is transmission-connected to the side of the transmission rod 7 away from the second bevel gear 5, a moving block 12 is threadedly connected above the threaded rod 10, a hydraulic rod 13 is fixedly installed on the side of the moving block 12 close to the threaded rod 10, a compression block 14 is fixedly connected to the side of the hydraulic rod 13 away from the moving block 12, a first spring 15 is arranged on the side of the compression block 14 close to the hydraulic rod 13, and the driving motor 3 is operated to change the compression block 14 from a static state to a moving state and compress the first spring 15;

[0034] An airbag seat base 17 is arranged above the base 1, a seat body 18 is fixedly connected to the side of the airbag seat base 17 away from the base 1, a head pad 22 is arranged on the side of the seat body 18 away from the airbag seat base 17, a head protection mechanism is arranged outside the head pad 22, and the head protection mechanism includes a mechanical bracket 23 arranged outside the head pad 22, a damping hollow cylinder 24 is rotatably connected to the side of the mechanical bracket 23, and a second spring 25 is fixedly connected to the side of the damping hollow cylinder 24 close to the mechanical bracket 23;

[0035] A fixing plate 2 is fixedly connected to the side of the base 1, a driving motor 3 is fixedly installed inside the fixing plate 2, and a first bevel gear 4 is rotatably connected to the base 1;

[0036] The first bevel gear 4 is meshedly connected to a third bevel gear 6 on one side away from the second bevel gear 5, and the third bevel gear 6 can drive another group of compression blocks 14 to move;

[0037] A fourth bevel gear 8 is fixedly connected to the side of the transmission rod 7 away from the second bevel gear 5, a fifth bevel gear 9 is meshedly connected to the side of the fourth bevel gear 8, and the fifth bevel gear 9 is fixedly connected to the threaded rod 10;

[0038] A slot plate 11 is fixedly connected to one side of the base 1 close to the fifth bevel gear 9, the threaded rod 10 is rotatably connected to the base 1, and the moving block 12 is slidably connected to the slot plate 11;

[0039] A square groove 16 is provided inside the base 1 on one side close to the moving block 12, and the square groove 16 is fixedly connected to the first spring 15;

[0040] The head pad 22 is fixedly connected to the mechanical support 23, and a sliding rod 26 is slidably connected inside the damping hollow cylinder 24 near the second spring 25;

[0041] A fixing piece 27 is rotatably connected to one side of the slide bar 26 close to the head protection pad 22 , and the fixing piece 27 is fixedly connected to the head protection pad 22 .

[0042] In the present embodiment, when it is detected that a collision is about to occur, the active shock absorbing mechanism is activated, and the driving motor 3 in the active shock absorbing mechanism starts to run. The driving motor 3 is fixedly installed inside the fixed plate 2 fixedly connected to the base 1. The driving motor 3 runs and controls the first bevel gear 4 arranged at its output end to start rotating. When the first bevel gear 4 rotates, it drives the second bevel gear 5 meshing with its side to start rotating. When the second bevel gear 5 rotates, the transmission rod 7 fixedly connected to its outside is rotated. A fourth bevel gear 8 is fixedly connected to the side of the transmission rod 7 away from the second bevel gear 5. When the transmission rod 7 rotates, it drives the fourth bevel gear 8 to start rotating. When the fourth bevel gear 8 rotates, it drives the fifth bevel gear 9 meshing with its outside to start rotating, so that the fifth bevel gear 9 drives the threaded rod 10 fixedly connected to its inside to start rotating. One end of the threaded rod 10 rotates inside the base 1, and a slot plate 11 is fixedly connected to the outside of the base 1. The threaded rod 10 starts to rotate inside the moving block 12 threadedly connected to its outside. Due to the sliding connection between the moving block 12 and the inside of the slot plate 11, the threaded rod 10 starts to rotate. When the groove rod 10 rotates, a spiral force is generated inside the moving block 12, and the moving block 12 starts to slide inside the groove plate 11 and does not rotate therewith. When the moving block 12 moves, it drives the hydraulic rod 13 fixedly connected to the outside thereof to start moving. The other side of the hydraulic rod 13 is fixedly connected to a compression block 14, and the hydraulic rod 13 can control the compression block 14 to move up and down, so that the hydraulic rod 13 drives the compression block 14 to start moving. At this time, the compression block 14 and the first spring 15 remain parallel, and when the compression block 14 moves, the first spring 15 moves toward the square groove 16 One end is compressed inside, and the other side of the first bevel gear 4 is meshed with a third bevel gear 6. The third bevel gear 6 drives another group of first springs 15 to be compressed by the same principle, so as to adjust the pre-pressure of the two groups to change their stiffness. When the seat body 18 is about to be impacted, the compression block 14 is controlled to descend by the hydraulic rod 13, so that the pre-pressure of the two groups of first springs 15 is instantly released, so as to achieve the effect of active shock absorption, absorb part of the impact energy, and reduce the impact force transmitted to the driver. When the driver does not need to use the active shock absorption function, the mechanism can be disabled;

[0043] A head pad 22 is fixedly connected above the seat body 18, and a head protection mechanism is arranged on the outside of the head pad 22. When a collision occurs, the impact force will be transmitted through the head pad 22 to the inside of the fixing part 27 fixedly connected between the head pad 22, so that the fixing part 27 transmits the impact force to the inside of the sliding rod 26 fixedly connected to both sides thereof. The sliding rod 26 starts to slide inside the damping hollow cylinder 24 under the impact force, and the second spring 25 is compressed toward the other end of the damping hollow cylinder 24, so that the second spring 25 uses its own elastic potential energy to reduce the vibration of the mechanical bracket 23 fixedly connected to the head pad 22 after being subjected to the impact force, thereby reducing the vibration of the head pad 22 and the impact of the impact force on the driver's head. The swing of the head is reduced by the combination of the mechanical bracket 23, the damping hollow cylinder 24 and the second spring 25, thereby reducing the risk of injury.

[0044] Embodiment 2

[0045] like Figure 1-Figure 7 As shown, based on the first embodiment, the square groove 16 is connected to a slide rail 19, the slide rail 19 is fixedly connected to the base 1, a concave track plate 20 is slidably connected above the slide rail 19, the concave track plate 20 is fixedly connected to the airbag seat base 17, a damping plate 21 is fixedly connected to the bottom of the concave track plate 20, and the damping plate 21 is slidably connected to the square groove 16;

[0046] A side of the transmission rod 7 close to the second bevel gear 5 is rotatably connected to a support plate 28 , and the support plate 28 is fixedly connected to the base 1 .

[0047] In this embodiment, the airbag seat base 17 is installed above the moving block 12 to carry the seat body 18 and provide additional shock absorption function. The slide rail 19 is fixedly connected to the base 1 to support and guide other moving parts. The concave track plate 20 is used to cooperate with other sliding parts to ensure the smooth movement of the seat body 18. The damping plate 21 is connected to the concave track plate 20 to provide additional friction to prevent excessive movement, so that the seat body 18 can slide outside the base 1 for passive shock absorption and cooperate with the active shock absorption mechanism to operate. The support plate 28 is rotatably connected to the transmission rod 7, and both sets of transmission rods 7 can rotate inside the support plate 28 to enhance the structural stability.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cab sliding shock-absorbing seat, comprising a base (1), characterized in that: An active shock absorbing mechanism is arranged outside the base (1), and the active shock absorbing mechanism comprises a driving motor (3) arranged outside the base (1); a first bevel gear (4) is arranged at the output end of the driving motor (3); a second bevel gear (5) is meshedly connected to a side of the first bevel gear (4); a transmission rod (7) is fixedly connected to a side of the second bevel gear (5) close to the base (1); a threaded rod (10) is transmission-connected to a side of the transmission rod (7) away from the second bevel gear (5); a moving block (12) is threadedly connected to the top of the threaded rod (10); a hydraulic rod (13) is fixedly installed on a side of the moving block (12) close to the threaded rod (10); a compression block (14) is fixedly connected to a side of the hydraulic rod (13) away from the moving block (12); a first spring (15) is arranged on a side of the compression block (14) close to the hydraulic rod (13); and the driving motor (3) operates so that the compression block (14) changes from a static state to a moving state and compresses the first spring (15); An airbag seat base (17) is arranged above the base (1); a seat body (18) is fixedly connected to the side of the airbag seat base (17) away from the base (1); a head pad (22) is arranged on the side of the seat body (18) away from the airbag seat base (17); a head protection mechanism is arranged outside the head pad (22); the head protection mechanism includes a mechanical bracket (23) arranged outside the head pad (22); a damping hollow cylinder (24) is rotatably connected to the side of the mechanical bracket (23); and a second spring (25) is fixedly connected to the side of the damping hollow cylinder (24) close to the mechanical bracket (23).

2. A cab sliding shock-absorbing seat according to claim 1, characterized in that: A fixing plate (2) is fixedly connected to the side of the base (1), the driving motor (3) is fixedly installed inside the fixing plate (2), and the first bevel gear (4) is rotationally connected to the base (1).

3. The cab sliding shock-absorbing seat according to claim 1, characterized in that: A third bevel gear (6) is meshingly connected to a side of the first bevel gear (4) away from the second bevel gear (5), and the third bevel gear (6) can drive another group of compression blocks (14) to move.

4. The cab sliding shock-absorbing seat according to claim 1, characterized in that: A fourth bevel gear (8) is fixedly connected to the side of the transmission rod (7) away from the second bevel gear (5), a fifth bevel gear (9) is meshingly connected to the side of the fourth bevel gear (8), and the fifth bevel gear (9) is fixedly connected to the threaded rod (10).

5. The cab sliding shock-absorbing seat according to claim 4, characterized in that: A groove plate (11) is fixedly connected to one side of the base (1) close to the fifth bevel gear (9); the threaded rod (10) is rotationally connected to the base (1); and the moving block (12) is slidingly connected to the groove plate (11).

6. The cab sliding shock-absorbing seat according to claim 1, characterized in that: A square groove (16) is provided inside the base (1) on one side close to the moving block (12), and the square groove (16) is fixedly connected to the first spring (15).

7. The cab sliding shock-absorbing seat according to claim 6, characterized in that: The square groove (16) is connected to a slide rail (19) in correspondence, the slide rail (19) is fixedly connected to the base (1), a concave track plate (20) is slidably connected above the slide rail (19), the concave track plate (20) is fixedly connected to the airbag seat base (17), a damping plate (21) is fixedly connected to the bottom of the concave track plate (20), and the damping plate (21) is slidably connected to the square groove (16).

8. The cab sliding shock-absorbing seat according to claim 1, characterized in that: The head protection pad (22) is fixedly connected to the mechanical support (23), and a sliding rod (26) is slidably connected inside the damping hollow cylinder (24) on one side close to the second spring (25).

9. The cab sliding shock-absorbing seat according to claim 8, characterized in that: A fixing member (27) is rotatably connected to one side of the slide bar (26) close to the head protection pad (22), and the fixing member (27) is fixedly connected to the head protection pad (22).

10. The cab sliding shock-absorbing seat according to claim 1, characterized in that: A support plate (28) is rotatably connected to one side of the transmission rod (7) close to the second bevel gear (5), and the support plate (28) is fixedly connected to the base (1).

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