An easy-to-assemble seat footrest mechanism

Abstract

This utility model discloses a seat footrest mechanism that is easy to assemble, effectively facilitating the disassembly, replacement, and maintenance of vulnerable parts. It includes a first fixing plate and a second fixing plate fixedly connected to the seat. A rotatable power shaft is located in the center of the first fixing plate. Two mounting blocks are symmetrically fixedly mounted on the outer side of the power shaft. A footrest plate is detachably connected to the side of each mounting block away from the power shaft. Two torsion springs are mounted on the outer side of the power shaft, with each torsion spring engaging with the corresponding mounting block on the side closest to it. This utility model features a novel structure, ingenious design, and simple and convenient operation. It effectively facilitates the electric adjustment of the footrest plate's position, facilitates the disassembly and replacement of the footrest plate, and makes assembly easier for workers. It reduces the overall maintenance cost of the device, increases the device's lifespan, reduces internal noise, and strengthens the support strength.

Description

Technical Field

[0001] This utility model belongs to the field of automotive seat accessories technology, and relates to a seat footrest mechanism that is easy to assemble. Background Technology

[0002] Due to limited interior space, rear passengers often experience poor comfort due to prolonged sitting. As people's demands for car comfort increase, consumers of high-end luxury models have begun to choose to install footrests on the back of the front seats to provide rear passengers with a place to rest their feet and achieve a reclining posture to improve comfort. Footrests are usually either manual or electric. Manual footrests have fewer adjustable positions and are inconvenient to adjust. Electric footrests are easier to adjust than manual footrests. Existing electric footrests usually use gear and tooth plate direct meshing drive, and the direct connection of the tooth plate has more requirements for space structure. The difficulty in handling the exposed parts will reduce the actual foot placement space.

[0003] Furthermore, existing footrests require replacement of the entire footrest assembly after damage, and their high degree of integration increases maintenance costs. Therefore, a more convenient and easily assembled seat footrest mechanism is needed to solve these problems, allowing for easy disassembly and replacement of easily damaged parts. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a seat footrest mechanism that is easy to assemble, effectively solving the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A seat footrest mechanism that is easy to assemble includes a first fixing plate and a second fixing plate that are fixedly connected to the seat. The first fixing plate has a rotatable power shaft in the middle. Two mounting blocks are symmetrically fixedly mounted on the outer side of the power shaft. The two mounting blocks are detachably connected to the footrest plate on the side away from the power shaft. Two torsion springs are mounted on the outer side of the power shaft. The side of each torsion spring near the mounting block is engaged with the corresponding mounting block.

[0007] Preferably, a motor assembly is fixedly connected to the side of the first fixed plate away from the power shaft, a pinion is fixedly connected to the output shaft of the motor assembly, and a gear plate is fixedly connected to the end of the power shaft near the first fixed plate, with the pinion meshing with the gear plate.

[0008] Preferably, a first protrusion and a second protrusion are fixedly connected to the side of the mounting block near the footrest. The first protrusion has a mounting hole in the middle, and the corresponding end of the torsion spring near the mounting block passes through the mounting hole and engages with the mounting block.

[0009] Preferably, the footrest includes a support plate and two connecting plates, each connecting plate being fixedly connected to the side of the support plate near the power shaft and detachably connected to the corresponding mounting block.

[0010] Preferably, each of the connecting plates has a weight-reducing groove on the side near the mounting block, and each mounting block is disposed inside the corresponding weight-reducing groove.

[0011] Preferably, each of the torsion springs has a bushing inside that is fixedly connected to the power shaft.

[0012] Preferably, the second fixing plate includes an n-shaped plate, a first positioning plate, and a reinforcing plate. The n-shaped plate has a first fixing hole in the middle. The first positioning plate and the reinforcing plate are respectively fixedly connected to the left and right sides of the n-shaped plate. The first positioning plate has a positioning notch in the middle.

[0013] Preferably, two second positioning plates are fixedly connected to the side of the first fixing plate away from the power shaft, and the first fixing plate is provided with second fixing holes.

[0014] Preferably, a limiting groove is formed in the middle of the gear plate, and a limiting rod that is fixedly connected to the first fixing plate is slidably connected inside the limiting groove, and a buffer pad is fitted on the outside of the limiting rod.

[0015] Preferably, both the first fixing plate and the second fixing plate have rotating holes on the side near the power shaft, and each rotating hole has a bushing inside. The left and right ends of the power shaft are rotatably connected to the first fixing plate and the second fixing plate through corresponding bushings.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model has an installation block. By setting the installation block and making the foot support plate detachably connected to the installation block, the foot support plate can be replaced separately after it is damaged, reducing the maintenance cost of the device.

[0018] 2. This utility model has a torsion spring that engages with the mounting block. By engaging the torsion spring with the mounting block, the probability of the torsion spring disengaging can be reduced, making the device operate more stably. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0021] Figure 3 This is an exploded structural diagram of the gear plate and the limiting rod in this utility model.

[0022] In the diagram: 1. First fixing plate; 2. Second fixing plate; 3. Power shaft; 4. Mounting block; 5. Foot support plate; 6. Torsion spring; 7. Motor assembly; 8. Pinion; 9. Gear plate; 10. First protrusion; 11. Second protrusion; 12. Mounting hole; 13. Support plate; 14. Connecting plate; 15. Weight reduction groove; 16. Bushing; 17. N-shaped plate; 18. First positioning plate; 19. Reinforcing plate; 20. First fixing hole; 21. Positioning notch; 22. Second positioning plate; 23. Second fixing hole; 24. Limiting groove; 25. Limiting rod; 26. Buffer pad; 27. Rotating hole; 28. Bushing. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The following is in conjunction with the appendix Figures 1 to 3 The specific embodiments of this utility model will be described in further detail.

[0025] Depend on Figures 1 to 3 As shown, this utility model includes a first fixing plate 1 and a second fixing plate 2 that are fixedly connected to the seat. In order to facilitate the disassembly, replacement and maintenance of vulnerable parts, a rotatable power shaft 3 is provided in the middle of the first fixing plate 1. Two mounting blocks 4 are symmetrically fixedly mounted on the outer side of the power shaft 3. A footrest plate 5 is detachably connected to the side of the two mounting blocks 4 away from the power shaft 3. Two torsion springs 6 are mounted on the outer side of the power shaft 3. The side of each torsion spring 6 near the mounting block 4 is engaged with the corresponding mounting block 4.

[0026] It should be noted that one end of the torsion spring 6 is snapped into the mounting block 4, and the other end is snapped into and fixed to the seat. That is, the car seat is provided with a fixing structure (such as holes, screws, etc.) for fixing one end of the torsion spring 6 at the position corresponding to the torsion spring 6. The torsion spring 6 has a preload after assembly, which can reduce the play between the motor and mechanical connection and reduce the abnormal noise of the device.

[0027] In use, by setting the first fixing plate 1 and the second fixing plate 2, the entire device can be fixed to the seat with bolts, thus fixing the entire device. When the device is in operation, the power shaft 3 will rotate, which in turn drives the footrest 5 to rotate through the mounting block 4, moving the footrest 5 from the storage state to the use state. At this time, the torsion spring 6 continuously stores force, which can reduce abnormal noise inside the device. When it is necessary to retract the footrest 5, the power shaft 3 can be rotated in the opposite direction. Under the combined action of the power shaft 3 and the torsion spring 6, the footrest 5 is reset.

[0028] By setting up mounting block 4 and making foot support plate 5 detachably connected to mounting block 4, foot support plate 5 can be replaced separately after it is damaged, reducing the maintenance cost of the device.

[0029] Furthermore, by Figures 1 to 3 As shown, in order to facilitate the electric adjustment of the position of the footrest 5, a motor assembly 7 is fixedly connected to the side of the first fixed plate 1 away from the power shaft 3. A small gear 8 is fixedly connected to the output shaft of the motor assembly 7. A gear plate 9 is fixedly connected to the end of the power shaft 3 near the first fixed plate 1. The small gear 8 meshes with the gear plate 9.

[0030] It should be noted that the motor assembly 7 includes a servo motor and a reduction mechanism. The power is transmitted to the pinion 8 through the reduction mechanism after the output shaft of the servo motor is reduced, and the pinion 8 drives the gear plate 9 to rotate.

[0031] It should be noted that the gear plate 9 has teeth of the same module as the pinion 8 on the side near the pinion 8 (not shown in the figure), that is, the pinion 8 can mesh with the gear plate 9 through gear transmission.

[0032] Furthermore, by Figures 1 to 3 As shown, in order to facilitate the disassembly and replacement of the footrest 5, a first protrusion 10 and a second protrusion 11 are fixedly connected to the side of the mounting block 4 near the footrest 5. A mounting hole 12 is provided in the middle of the first protrusion 10, and the corresponding torsion spring 6 passes through the mounting hole 12 and engages with the mounting block 4 at one end.

[0033] Furthermore, by Figures 1 to 3 As shown, in order to facilitate assembly by the staff, the foot plate 5 includes a support plate 13 and two connecting plates 14. Each connecting plate 14 is fixedly connected to the side of the support plate 13 near the power shaft 3 and is detachably connected to the corresponding mounting block 4.

[0034] It should be noted that the end of the torsion spring 6 near the mounting block 4 can be bent again after passing through the mounting hole 12, so that the torsion spring 6 is engaged with the mounting hole 12, reducing the probability of the torsion spring 6 falling off the mounting block 4.

[0035] Furthermore, by Figures 1 to 3 As shown, in order to reduce the overall maintenance cost of the device, each connecting plate 14 is provided with a weight reduction groove 15 on the side near the mounting block 4, and each mounting block 4 and the second protrusion 11 are located inside the corresponding weight reduction groove 15.

[0036] By setting the weight reduction groove 15, the mounting block 4 and the connecting plate 14 can be detachably connected. When the footrest 5 needs to be repaired or is damaged, the footrest 5 can be disassembled and replaced more easily, avoiding the need to replace the footrest assembly and reducing maintenance costs.

[0037] Furthermore, by Figures 1 to 3 As shown, in order to increase the life of the device and reduce internal noise, each torsion spring 6 is provided with a bushing 16 that is fixedly connected to the power shaft 3.

[0038] When in use, the bushing 16 is made of plastic or rubber. When the foot plate 5 moves, the inner diameter of the torsion spring 6 will change, and the torsion spring 6 will also rotate relative to the power shaft 3. At this time, the torsion spring 6 can rotate relative to the bushing 16, reducing the friction damage caused by direct contact between the torsion spring 6 and the power shaft 3, as well as the probability of abnormal noise between the torsion spring 6 and the power shaft 3.

[0039] Furthermore, by Figures 1 to 3 As shown, in order to strengthen the support strength, the second fixing plate 2 includes an n-shaped plate 17, a first positioning plate 18 and a reinforcing plate 19. The n-shaped plate 17 has a first fixing hole 20 in the middle. The first positioning plate 18 and the reinforcing plate 19 are respectively fixedly connected to the left and right sides of the n-shaped plate 17. The first positioning plate 18 has a positioning notch 21 in the middle.

[0040] In use, the n-shaped plate 17, the first positioning plate 18 and the reinforcing plate 19 are integrally formed to form the second fixing plate 2, which makes the second fixing plate 2 lighter and easier to assemble. Compared with the prior art, it does not require multiple brackets to be fastened together by bolts and nuts, and at the same time, it reduces the number of parts and facilitates later replacement. By setting the positioning notch 21, the second fixing plate 2 can be easily positioned and installed.

[0041] Furthermore, by Figures 1 to 3 As shown, in order to facilitate the installation of the second fixing plate 2, two second positioning plates 22 are fixedly connected to the side of the first fixing plate 1 away from the power shaft 3, and the first fixing plate 1 is provided with a second fixing hole 23.

[0042] In use, the second positioning plate 22 makes it easy for staff to position and install the second fixing plate 2, and the second fixing hole 23 makes it easy to fix the second fixing plate 2 to the seat with bolts.

[0043] Furthermore, by Figures 1 to 3 As shown, in order to limit the extreme position of the footrest 5, a limiting groove 24 is provided in the middle of the gear plate 9. A limiting rod 25 that is fixedly connected to the first fixed plate 1 is slidably connected inside the limiting groove 24. A buffer pad 26 is fitted on the outside of the limiting rod 25. The buffer pad 26 is made of rubber.

[0044] In use, by setting the limiting groove 24, it can cooperate with the limiting rod 25 to limit the extreme position, and at the same time, it can reduce the weight of the gear plate 9 and reduce the overall weight of the device. By setting the buffer pad 26, the abnormal noise when the limiting rod 25 contacts the limiting groove 24 can be reduced. In addition, when the foot plate 5 is in the extreme position, the cooperation between the limiting rod 25 and the limiting groove 24 can also make the position of the foot plate 5 more stable and increase its load-bearing capacity.

[0045] Furthermore, by Figures 1 to 3 As shown, in order to increase the service life of the device, a rotating hole 27 is provided on the side of the first fixing plate 1 and the second fixing plate 2 near the power shaft 3. Each rotating hole 27 is provided with a bushing 28 inside. The bushing 28 is made of wear-resistant material, such as wear-resistant plastic or rubber. The left and right ends of the power shaft 3 are rotatably connected to the first fixing plate 1 and the second fixing plate 2 through the corresponding bushings 28.

[0046] In use, by setting bushing 28, the friction between the power shaft 3 and the first fixed plate 1 and the second fixed plate 2 can be reduced, thereby increasing the service life of the device;

[0047] It should also be noted that in this embodiment, the first fixing plate 1, the second fixing plate 2, the mounting block 4, and the foot support plate 5 are all made of aluminum-magnesium alloy, which can effectively reduce the overall weight of the device.

[0048] When this utility model is in use, the device as a whole can be fixed to the seat with bolts through the first fixing plate 1 and the second fixing plate 2, thus fixing the device as a whole. When the device is in operation, the power shaft 3 will rotate, which will drive the footrest 5 to rotate through the mounting block 4, so that the footrest 5 moves from the storage state to the use state. At this time, the torsion spring 6 continuously stores force, which can reduce abnormal noise inside the device. When it is necessary to retract the footrest 5, the power shaft 3 can be rotated in the opposite direction. Under the combined action of the power shaft 3 and the torsion spring 6, the footrest 5 is reset.

[0049] This utility model has a novel structure, ingenious design, and simple and convenient operation. Through this design, it is possible to facilitate the disassembly, replacement and maintenance of vulnerable parts, facilitate the electric adjustment of the position of the foot support plate 5, facilitate the disassembly and replacement of the foot support plate 5, facilitate the assembly by the staff, reduce the overall maintenance cost of the device, increase the life of the device, reduce internal noise and strengthen the support strength.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A seat footrest mechanism for facilitating assembly, comprising a first fixed plate fixedly connected with a seat, a second fixed plate, characterized in that: The first fixed plate has a rotatable power shaft in the middle. Two mounting blocks are symmetrically fixed on the outer side of the power shaft. The two mounting blocks are detachably connected to a foot plate on the side away from the power shaft. Two torsion springs are mounted on the outer side of the power shaft. The side of each torsion spring closest to the mounting block is engaged with the corresponding mounting block.

2. The easily assembled seat footrest mechanism according to claim 1, characterized in that: A motor assembly is fixedly connected to the side of the first fixed plate away from the power shaft. A pinion is fixedly connected to the output shaft of the motor assembly. A gear plate is fixedly connected to the end of the power shaft near the first fixed plate. The pinion meshes with the gear plate.

3. The easily assembled seat footrest mechanism according to claim 1, characterized in that: The mounting block has a first protrusion and a second protrusion fixedly connected to the side near the footrest. The first protrusion has a mounting hole in the middle, and the corresponding torsion spring passes through the mounting hole and engages with the mounting block at one end.

4. The easily assembled seat footrest mechanism according to claim 3, characterized in that: The footrest includes a support plate and two connecting plates. Each connecting plate is fixedly connected to the side of the support plate near the power shaft and is detachably connected to the corresponding mounting block.

5. A seat footrest mechanism for easy assembly according to claim 4, characterized in that: Each of the connecting plates has a weight-reducing groove on the side near the mounting block, and each mounting block is disposed inside the corresponding weight-reducing groove.

6. The easily assembled seat footrest mechanism according to claim 1, characterized in that: Each of the torsion springs has a bushing inside that is fixedly connected to the power shaft.

7. A seat footrest mechanism for easy assembly according to claim 1, characterized in that: The second fixing plate includes an n-shaped plate, a first positioning plate, and a reinforcing plate. The n-shaped plate has a first fixing hole in the middle. The first positioning plate and the reinforcing plate are respectively fixedly connected to the left and right sides of the n-shaped plate. The first positioning plate has a positioning notch in the middle.

8. A seat footrest mechanism for easy assembly according to claim 1, characterized in that: Two second positioning plates are fixedly connected to the side of the first fixing plate away from the power shaft, and the first fixing plate has a second fixing hole.

9. A seat footrest mechanism for easy assembly according to claim 2, characterized in that: A limiting groove is provided in the middle of the gear plate, and a limiting rod that is fixedly connected to the first fixing plate is slidably connected inside the limiting groove. A buffer pad is fitted on the outside of the limiting rod.

10. A seat footrest mechanism for easy assembly according to claim 1, characterized in that: Both the first and second fixed plates have rotating holes on the side near the power shaft. Each rotating hole has a bushing inside. The left and right ends of the power shaft are rotatably connected to the first and second fixed plates through corresponding bushings.

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