Framework structure of automobile seat

Abstract

The utility model relates to the technical field of automobile seats, in particular to an automobile seat framework structure which comprises a seat plate frame, a backrest frame is arranged on one side of the top of the seat plate frame, four supporting seats are fixedly connected to the bottom of the seat plate frame, a buffering mechanism is arranged at the bottoms of the four supporting seats, and the buffering mechanism comprises a connecting frame. A connecting plate is arranged at the bottom of the connecting frame, and buffer rods are arranged on the two sides of the bottom of the connecting plate. According to the automobile seat plate frame, the buffering springs are fixedly connected to the inner top faces of the sliding frames, the sliding frames can be supported through the buffering springs, and therefore the connecting frame is supported, the seat plate frame can be buffered through the buffering springs when an uneven road surface occurs and a vehicle vibrates seriously, and therefore the comfort of a passenger can be improved, and the safety of the passenger is improved. And the moving range of the sliding frame can be limited through the inserting groove, excessive extrusion on the buffer spring is avoided, and the service life of the buffer spring is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a frame structure of an automobile seat. Background Art

[0002] Car seats generally include a seat frame structure, a seat plate, a backrest, etc., and the seat plate and the backrest are generally installed on the frame structure. Since some large trucks, buses and other vehicles have relatively poor shock absorption effects, and the seat structures of some buses are relatively simple, when the car is driving and encounters uneven roads, it is easy to produce large vibrations, which can easily cause the passengers or drivers in the seats to shake, and the seat comfort is poor. When driving for a long time, it is easy to increase the discomfort of people, and the riding experience of people is relatively poor. Utility Model Content

[0003] The purpose of the utility model is to provide a car seat frame structure to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A car seat frame structure comprises a seat plate frame, a backrest frame is arranged on one side of the top of the seat plate frame, four support seats are fixedly connected to the bottom of the seat plate frame, a buffer mechanism is arranged at the bottom of the four support seats, the buffer mechanism comprises a connecting frame, a connecting plate is arranged at the bottom of the connecting frame, buffer rods are arranged on both sides of the bottom of the connecting plate, the inner side surface of the buffer rod is slidably connected to a sliding frame, the inner top surface of the sliding frame is fixedly connected to a buffer spring fixedly connected to the inner bottom surface of the buffer rod, the top of the side surface of the sliding frame is rotatably connected to a rotating shaft fixedly connected to the inner side surface of the connecting plate, the top surface of the buffer rod is fixedly connected to two limit plates, the side surface of the limit plate is provided with a slot, and the side surface of the rotating shaft is fixedly connected to two plug blocks contacting the inner sides of adjacent slots.

[0006] Furthermore, four limit frames are fixedly connected to the corresponding connecting plates on the bottom surface of the connecting frame, the top of the inner side surface of the limit frame is slidably connected to the limit rod 1, the inner bottom surface of the limit frame is fixedly connected to the limit rod 2, the top and bottom of the two side surfaces of the connecting plate are rotatably connected to round blocks, and the opposite surfaces of the limit rod 1 and the limit rod 2 are in contact with the sides of the adjacent round blocks.

[0007] Furthermore, connecting grooves are provided on both sides of the inner side surface of the connecting plate, the inner side surface of the connecting groove is rotatably connected to a connecting shaft, and a torsion spring is provided between the connecting groove and the connecting shaft.

[0008] Furthermore, the inner side surface of the limit frame is rotatably connected to an adjusting screw rod rotatably connected to the inner side surface of the connection frame, and the side surface of the adjusting screw rod is screwed and connected to the inner side surface of the first limit rod, and the bottom end of the adjusting screw rod is rotatably connected to the inner side surface of the second limit rod.

[0009] Furthermore, two dual-axis motors are arranged on the inner side of the connecting frame, and both output ends of the dual-axis motors are transmission-connected to a transmission rod rotationally connected to the inner side of the connecting frame, and bevel gears are fixedly sleeved on the side of the transmission rod and the top of the side of the adjusting screw rod, and two adjacent bevel gears are meshed for transmission.

[0010] Preferably: both ends of the connecting plate are rotatably connected to sliding blocks that are slidably connected to the inner side surfaces of adjacent limit frames, the inner side surfaces of the sliding blocks are rotatably connected to connecting rings that are slidably connected to the sides of adjacent adjusting screw rods, the side surfaces of the sliding blocks are fixedly connected to fixed shafts that are rotatably connected to the inner side surfaces of the connecting plate, and the end portions of the fixed shafts are fixedly connected to the end portions of the adjacent connecting shafts.

[0011] Furthermore, a bottom plate is arranged at the bottom of the buffer rod, and four fixing seats are fixedly connected to the top surface of the bottom plate corresponding to the buffer rod, and the top surface of the fixing seat is fixedly connected to the bottom surface of the adjacent buffer rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The top surface of the sliding frame is fixedly connected with a buffer spring, so that the seat plate can be installed on the seat plate frame, and the backrest can be installed on the backrest frame. The sliding frame can be supported by the buffer spring, thereby supporting the connecting frame. When encountering an uneven road surface and the vehicle has a large vibration, the seat plate frame can be buffered by the buffer spring, which is beneficial to improving the comfort of the passengers. When the connecting plate rotates to a horizontal state and the plug block corresponds to the rectangular position at the bottom of the slot, the plug block can slide up and down inside the slot. At this time, the moving range of the sliding frame can be limited by the slot to avoid excessive squeezing of the buffer spring, which is beneficial to improving the service life of the buffer spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a car seat frame structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the bottom structure of the connection frame in the utility model;

[0016] Figure 3 It is a schematic diagram of the connecting plate structure in the utility model;

[0017] Figure 4 It is a schematic diagram of the internal front view structure of the connecting plate in the utility model;

[0018] Figure 5It is a side view structural diagram of the limiting plate in the utility model;

[0019] Figure 6 It is a schematic diagram of the internal top view of the connection frame in the utility model.

[0020] In the figure: 100, seat frame; 110, backrest frame; 120, support seat; 200, buffer mechanism; 210, connecting frame; 211, limit frame; 212, limit rod one; 213, limit rod two; 214, adjusting screw; 215, double-axis motor; 216, transmission rod; 217, bevel gear; 220, bottom plate; 221, fixed seat; 230, buffer rod; 231, sliding frame; 232, buffer spring; 233, rotating shaft; 234, limit plate; 235, slot; 236, plug block; 240, connecting plate; 241, round block; 242, connecting groove; 243, connecting shaft; 244, torsion spring; 245, sliding block; 246, fixed shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 In the embodiment of the utility model, a car seat frame structure includes a seat frame 100, a backrest frame 110 is arranged on one side of the top of the seat frame 100, four support seats 120 are fixedly connected to the bottom of the seat frame 100, and a buffer mechanism 200 is arranged at the bottom of the four support seats 120. The buffer mechanism 200 includes a connecting frame 210, a connecting plate 240 is arranged at the bottom of the connecting frame 210, and buffer rods 230 are arranged on both sides of the bottom of the connecting plate 240. The inner side of the buffer rod 230 is slidably connected to a sliding frame 231, and the top surface of the sliding frame 231 is fixedly connected to the inner bottom surface of the buffer rod 230. A buffer spring 232 is fixedly connected, and the top of the side of the sliding frame 231 is rotatably connected to a rotating shaft 233 fixedly connected to the inner side of the connecting plate 240. Two limit plates 234 are fixedly connected to the top surface of the buffer rod 230. A slot 235 is opened on the side of the limit plate 234. Two plug blocks 236 that contact the inner sides of adjacent slots 235 are fixedly connected to the side of the rotating shaft 233. A bottom plate 220 is provided at the bottom of the buffer rod 230. Four fixed seats 221 are fixedly connected to the top surface of the bottom plate 220 corresponding to the buffer rod 230. The top surface of the fixed seat 221 is fixedly connected to the bottom surface of the adjacent buffer rod 230.

[0023] Specifically, the seat plate can be installed on the seat plate frame 100, and the backrest can be installed on the backrest frame 110. The slot 235 includes a top circular area and a bottom rectangular area. When a person sits on the seat plate frame 100, the connecting frame 210 is pressed downward, so that the connecting plate 240 rotates. The connecting plate 240 can drive the plug block 236 to rotate through the rotating shaft 233, so that the plug block 236 rotates in the top circular area of ​​the slot 235. When the plug block 236 rotates to a state corresponding to the bottom rectangular area of ​​the slot 235, the plug block 236 can slide up and down along the bottom rectangular area of ​​the slot 235. At this time, the sliding frame 231 can be supported by the buffer spring 232, thereby supporting the connecting frame 210. When encountering an uneven road surface and the vehicle has a large vibration, the buffer spring can be used 232 buffers the seat frame 100, which is beneficial to improving the comfort of the passengers, and the moving range of the sliding frame 231 can be limited by the slot 235 to avoid excessive squeezing of the buffer spring 232, which is beneficial to improving the service life of the buffer spring 232. The base plate 220 can be fixed on the vehicle, so that the base plate 220 supports and positions the buffer rod 230 through the fixed seat 221. Two telescopic cylinders slidably connected to each other can be set at the bottom inner side of the buffer rod 230, and damping can be set in the telescopic cylinders so that the top surface of the sliding frame 231 is fixedly connected to the top end of the telescopic cylinder. In this way, a certain resistance can be provided to the mutual movement of the two telescopic cylinders through damping, thereby providing a certain resistance to the sliding of the sliding frame 231 in the buffer rod 230, which is beneficial to improving the buffering effect.

[0024] Embodiment 1

[0025] like Figure 3-4 As shown, in the present embodiment, four limit frames 211 are fixedly connected to the corresponding connecting plate 240 on the bottom surface of the connecting frame 210, the top of the inner side surface of the limit frame 211 is slidably connected to the limit rod 1 212, and the inner bottom surface of the limit frame 211 is fixedly connected to the limit rod 213, the top and bottom of the two side surfaces of the connecting plate 240 are rotatably connected to round blocks 241, and the opposite surfaces of the limit rod 1 212 and the limit rod 213 are in contact with the side surfaces of the adjacent round blocks 241, connecting grooves 242 are provided on both sides of the inner side surface of the connecting plate 240, and the inner side surface of the connecting groove 242 is rotatably connected to the connecting shaft 243, and a torsion spring 244 is arranged between the connecting groove 242 and the connecting shaft 243, the inner side surface of the limit frame 211 is rotatably connected to the adjusting screw rod 214 rotatably connected to the inner side surface of the connecting frame 210, and the side surface of the adjusting screw rod 214 is screwed and connected to the inner side surface of the limit rod 1 212, and the bottom end of the adjusting screw rod 214 is rotatably connected to the inner side surface of the limit rod 213.

[0026] In this embodiment, the screw rod 214 is adjusted to limit the position of the limit rod 1 212 relative to the limit frame 211. After the person sits on the seat plate on the top of the seat plate frame 100, the seat plate frame 100 and the connecting frame 210 are pressed downward, so that the connecting frame 210 drives the limit rod 1 212 and the limit rod 213 to move downward. The limit rod 1 212 can press the round block 241 downward, so that the connecting plate 240 rotates. The connecting plate 240 can drive the plug block 236 to rotate through the rotating shaft 233, so that the plug block 236 corresponds to the rectangular position at the bottom of the slot 235, and then the plug block 236 can be moved downward along the slot 235, which can be torsion spring 244 provides resistance to the rotation of the connecting plate 240. The connecting plate 240 can provide resistance to the downward movement of the limit rod 212 through the round block 241 at its end, thereby providing a certain buffer for the downward movement of the limit frame 211, and when the connecting frame 210 vibrates upward, the limit rod 213 can push the adjacent round block 241 upward, so that the connecting plate 240 rotates in the opposite direction. The torsion spring 244 can provide resistance to the reverse rotation of the connecting plate 240, thereby providing buffering for the seat plate frame 100. Damping can be set between the connecting groove 242 and the connecting shaft 243 to provide resistance to the rotation of the connecting plate 240 relative to the connecting shaft 243.

[0027] like Figure 4 As shown, in this embodiment, both ends of the connecting plate 240 are rotatably connected to a sliding block 245 that is slidably connected to the inner side surface of the adjacent limit frame 211, the inner side surface of the sliding block 245 is rotatably connected to a connecting ring that is slidably connected to the side surface of the adjacent adjusting screw rod 214, the side of the sliding block 245 is fixedly connected to a fixed shaft 246 that is rotatably connected to the inner side surface of the connecting plate 240, and the end of the fixed shaft 246 is fixedly connected to the end of the adjacent connecting shaft 243.

[0028] During specific implementation, the sliding block 245 can slide upward or downward along the adjusting screw rod 214, and the adjusting screw rod 214 and the connecting frame 210 can limit the moving direction of the sliding block 245 and prevent the sliding block 245 from rotating. In this way, the moving direction of the connecting plate 240 can be limited by the sliding block 245 to prevent the connecting plate 240 from moving horizontally. At the same time, the sliding block 245 can limit the rotation of the connecting shaft 243 through the fixed shaft 246, thereby ensuring that the torsion spring 244 provides resistance to the rotation of the connecting plate 240.

[0029] Embodiment 2

[0030] Based on the first embodiment, Figure 6 As shown, in this embodiment, two dual-axis motors 215 are provided on the inner side of the connecting frame 210, and both output ends of the dual-axis motor 215 are transmission-connected to a transmission rod 216 which is rotationally connected to the inner side of the connecting frame 210, and a bevel gear 217 is fixedly sleeved on the side of the transmission rod 216 and the top of the side of the adjusting screw rod 214, and two adjacent bevel gears 217 are meshed for transmission.

[0031] During specific implementation, the dual-axis motor 215 can drive two adjacent transmission rods 216 to rotate, and the transmission rod 216 can drive the adjacent adjusting screw rod 214 to rotate through the bevel gear 217. The rotation of the adjusting screw rod 214 can make the limit rod 1 212 move upward or downward along the inner wall of the limit frame 211, thereby changing the distance between the limit rod 1 212 and the limit rod 2 213, so that the initial height of the connecting frame 210 can be adjusted as needed.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A car seat frame structure, comprising a seat frame, a backrest frame is arranged on one side of the top of the seat frame, and four support seats are fixedly connected to the bottom of the seat frame, characterized in that: A buffer mechanism is provided at the bottom of the four support seats, and the buffer mechanism includes a connecting frame, a connecting plate is provided at the bottom of the connecting frame, buffer rods are provided on both sides of the bottom of the connecting plate, the inner side surface of the buffer rod is slidably connected to the sliding frame, the inner top surface of the sliding frame is fixedly connected to a buffer spring fixedly connected to the inner bottom surface of the buffer rod, the top of the side surface of the sliding frame is rotatably connected to a rotating shaft fixedly connected to the inner side surface of the connecting plate, the top surface of the buffer rod is fixedly connected to two limit plates, the side surface of the limit plate is provided with a slot, and the side surface of the rotating shaft is fixedly connected to two plug blocks contacting the inner sides of adjacent slots.

2. The automobile seat frame structure according to claim 1, characterized in that: The bottom surface of the connecting frame is fixedly connected with four limit frames corresponding to the connecting plate, the top of the inner side surface of the limit frame is slidably connected with limit rod 1, the bottom surface of the inner surface of the limit frame is fixedly connected with limit rod 2, the top and bottom of the two side surfaces of the connecting plate are rotatably connected with round blocks, and the opposite surfaces of limit rod 1 and limit rod 2 are in contact with the sides of adjacent round blocks.

3. The automobile seat frame structure according to claim 2, characterized in that: Connecting grooves are provided on both sides of the inner side surface of the connecting plate, a connecting shaft is rotatably connected to the inner side surface of the connecting groove, and a torsion spring is provided between the connecting groove and the connecting shaft.

4. The automobile seat frame structure according to claim 3, characterized in that: The inner side surface of the limit frame is rotatably connected to an adjusting screw rod rotatably connected to the inner side surface of the connection frame, and the side surface of the adjusting screw rod is screwed and connected to the inner side surface of the first limit rod, and the bottom end of the adjusting screw rod is rotatably connected to the inner side surface of the second limit rod.

5. The automobile seat frame structure according to claim 4, characterized in that: Two double-axis motors are arranged on the inner side of the connection frame, and both output ends of the double-axis motors are transmission-connected with a transmission rod rotationally connected to the inner side of the connection frame. Bevel gears are fixedly sleeved on the side of the transmission rod and the top of the side of the adjusting screw rod, and two adjacent bevel gears are meshed for transmission.

6. The automobile seat frame structure according to claim 4, characterized in that: Both ends of the connecting plate are rotatably connected to sliding blocks that are slidably connected to the inner side surfaces of adjacent limit frames. The inner side surfaces of the sliding blocks are rotatably connected to connecting rings that are slidably connected to the sides of adjacent adjusting screw rods. The side surfaces of the sliding blocks are fixedly connected to fixed shafts that are rotatably connected to the inner side surfaces of the connecting plate, and the ends of the fixed shafts are fixedly connected to the ends of the adjacent connecting shafts.

7. The automobile seat frame structure according to claim 1, characterized in that: A bottom plate is provided at the bottom of the buffer rod, and four fixing seats are fixedly connected to the top surface of the bottom plate corresponding to the buffer rod, and the top surface of the fixing seat is fixedly connected to the bottom surface of the adjacent buffer rod.

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