A car seat with adjustable seat frame angle

Abstract

This invention relates to the field of seat adjustment technology, specifically to a car seat with adjustable seat frame angle, comprising two movable seats, each with an L-shaped support block fixedly connected to its top. The invention allows the leg rest to be moved manually by pulling, which in turn moves two sliding rods, a swing rod, and an L-shaped locking rod, allowing the leg rest to be moved to the desired position. In reverse adjustment, pressing the strip-shaped sliding plate moves the push rod and rack, which in turn rotates the gear, swing rod, and L-shaped locking rod, causing the L-shaped locking rod to move away from the locking plate. At this point, the stretched return spring causes the leg rest to return to its original position. When adjusting the leg rest outwards, it is not necessary to press the strip-shaped sliding plate; simply pull it outwards. When adjusting the leg rest inwards, the return spring automatically resets the leg rest, facilitating easy and convenient adjustment of the leg rest and making operation more convenient.

Description

Technical Field

[0001] This invention relates to the field of seat adjustment technology, specifically to a car seat with seat frame angle adjustment function. Background Technology

[0002] Car seats are a fundamental component of automobiles, primarily consisting of the seat frame, seat cushion, and backrest structure. The seat frame mainly supports the weight of the occupant and cushions vibrations and impacts from the vehicle body. It is a crucial functional and safety component of the car, and the structural strength and design rationality of the seat frame directly affect the comfort and safety of the driver and passengers.

[0003] A search of utility model patent CN211391039U reveals an automotive seat frame assembly, comprising an upper frame assembly, a lower frame assembly, and several seat cover wires. The upper frame assembly includes a front support rod, a rear support rod, a side plate, a lower connecting plate for the back frame, and several seat cushion springs fixed at both ends to the front and rear support rods. The lower frame assembly includes four symmetrically arranged sets of support connectors, four symmetrically arranged sets of lower frame brackets, a front connecting rod, and a rear connecting rod.

[0004] Based on the above search results and existing technologies, the following findings were made:

[0005] In the current process of adjusting the leg rest of a car seat, it is necessary to press to open the locking component before the leg rest can be adjusted. Pushing the leg rest back into its original position requires manual pushing, which makes the adjustment of the leg rest inconvenient and difficult to operate. Summary of the Invention

[0006] The purpose of this invention is to provide a car seat with adjustable seat frame angle to solve the problems mentioned in the background art.

[0007] The technical solution of the present invention is: a car seat with seat frame angle adjustment function, comprising two movable seats, each of the two movable seats having an L-shaped support block fixedly connected to its top, and a fixed shaft fixedly connected to both of the two L-shaped support blocks;

[0008] Two frame plates are fixedly connected to both ends of the fixed shaft, and a fixed rod is fixedly connected to the side of the two frame plates that are close to each other.

[0009] Two fixed rails are respectively fixedly connected to the two frame plates on their adjacent sides. Sliding rods are slidably connected to the two fixed rails, and a leg support plate is fixedly connected to one end of the two sliding rods.

[0010] A sliding adjustment mechanism is located on the leg support plate and is used to adjust the leg support plate.

[0011] An angle adjustment mechanism is located on the frame plate and is used to adjust the angle of the frame plate.

[0012] A buffer mechanism, which is located on the frame plate;

[0013] The sliding adjustment mechanism includes a sliding hole fixedly opened on one side of the leg support plate, a strip-shaped sliding plate slidably connected in the sliding hole, a push rod fixedly connected to one side of the strip-shaped sliding plate, a rack fixedly connected to one end of the push rod, a swing rod fixedly connected to the side of the two sliding rods that are close to each other, a gear keyed to the swing rod, the gear meshing with the rack, L-shaped locking rods fixedly connected to both ends of the swing rod, a slot plate fixedly connected to the top of the two fixed tracks, the L-shaped locking rods located in the slot plates, an L-shaped plate slidably sleeved on each push rod, one end of the L-shaped plate fixedly connected to one side of the leg support plate, a telescopic spring sleeved on the push rod, and both ends of the telescopic spring fixedly connected to the strip-shaped sliding plate and the L-shaped plate respectively.

[0014] Preferably, the angle adjustment mechanism includes a mounting rod fixedly connected to one side of the two frame plates that are close to each other. Two L-shaped rotating rods are rotatably connected to the mounting rods. The bottom ends of the two L-shaped rotating rods are rotatably connected to mounting blocks. The bottom ends of the two mounting blocks are respectively fixedly connected to the tops of the two movable seats.

[0015] Preferably, each of the two movable seats has a sliding groove on one side close to each other, and a slider is slidably connected in each of the two sliding grooves. A fixing post is fixedly connected to the side close to each other of the two sliders. Two connecting rods are rotatably connected to the fixing post and the mounting rod. A telescopic hydraulic rod is rotatably connected to the fixing post and the fixing shaft.

[0016] Preferably, a fixing block is fixedly connected to the top of one of the fixed tracks, a telescopic rod is fixedly connected to one side of the fixing block, one end of the telescopic rod is fixedly connected to the leg support plate, a return spring is sleeved on the telescopic rod, and the two ends of the return spring are fixedly connected to the fixing block and the leg support plate respectively.

[0017] Preferably, limit posts are fixedly connected to both sides of the leg support plate, and limit grooves are opened on one side of both frame plates. Arc-shaped blocks are fixedly connected in both limit grooves, and the two limit posts are in contact with the two arc-shaped blocks respectively.

[0018] Preferably, the buffer mechanism includes four L-shaped rods that are respectively fixedly connected to the two frame plates on one side close to each other. Each of the four L-shaped rods has a groove at its top end. Each of the four grooves has a movable rod slidably connected to it. The top ends of the four movable rods are fixedly connected to a fixed frame. Each of the four movable rods is fitted with a buffer spring. The two ends of the buffer spring are fixedly connected to the L-shaped rod and the frame plate, respectively.

[0019] Preferably, two bent spring pieces are fixedly connected to both sides of the frame plate, and a rotating ring is fixedly connected to the bottom end of each of the four bent spring pieces. The four rotating rings are respectively rotatably connected to the fixed shaft and the fixed rod.

[0020] Preferably, a plurality of connecting springs are fixedly connected to the inner wall of the frame plate, and the plurality of connecting springs are parallel to the two frame plates.

[0021] Preferably, the slot of the slot plate is inclined, the slot is inclined upward towards the leg support plate, and a baffle is fixedly connected to the bottom of the leg support plate.

[0022] This invention provides an improved car seat with adjustable seat frame angle, which has the following improvements and advantages compared to the prior art:

[0023] Firstly, this invention allows for easy adjustment of the leg support plate by holding the bottom and pulling it outwards. The movement of the leg support plate moves two sliding rods, a swing rod, and an L-shaped locking rod, causing the L-shaped locking rod to move on the slot plate until the leg support plate reaches the desired position. For reverse adjustment, the leg support plate is held while the strip-shaped sliding plate is pressed, causing it to move. This movement of the strip-shaped sliding plate moves the push rod and rack, which in turn rotates the gear, swing rod, and L-shaped locking rod, causing the L-shaped locking rod to move away from the slot plate. At this point, the tensioned return spring causes the leg support plate to return to its original position. When adjusting the leg support plate outwards, it is not necessary to press the strip-shaped sliding plate; simply pull it outwards. When adjusting the leg support plate inwards, the return spring automatically resets the leg support plate, making it easier to adjust and thus more convenient to operate.

[0024] Secondly, this invention uses a telescopic hydraulic rod to move the fixed column and the slider. The movement of the fixed column moves the connecting rod, which, in conjunction with the L-shaped rotating rod, pushes the mounting rod upward. The movement of the mounting rod moves the two frame plates upward, causing the frame plates to rotate around the fixed axis. This allows for angle adjustment of the seat frame, thus better accommodating different users.

[0025] Thirdly, this invention allows the L-shaped rod and the movable rod to be combined into a telescopic rod, which, in conjunction with the buffer spring, can buffer the fixed frame, thereby improving the cushioning effect of the seat and making it more comfortable for people sitting in the seat. Attached Figure Description

[0026] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0027] Figure 1 This is a schematic diagram of the first overall three-dimensional structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the second overall three-dimensional structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the third overall three-dimensional structure of the present invention;

[0030] Figure 4 This is a three-dimensional structural diagram of the sliding adjustment mechanism of the present invention;

[0031] Figure 5 This is a three-dimensional structural diagram of the angle adjustment mechanism of the present invention;

[0032] Figure 6 This is the invention Figure 1 Enlarged 3D structural diagram at point A in the middle;

[0033] Figure 7 This is the invention Figure 1 Enlarged 3D structural diagram at point B.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Movable seat; 101. L-shaped support block; 102. Fixed shaft; 103. Frame plate; 104. Fixed rod; 105. Rotating ring; 106. Bending spring; 107. Fixed frame; 108. Connecting spring; 109. L-shaped rod; 110. Movable rod; 111. Buffer spring; 2. Fixed track; 201. Sliding rod; 202. Leg support plate; 203. Baffle; 204. Fixed block; 205. Telescopic rod; 206. Reset 207. Spring; 208. Limiting post; 209. Arc-shaped block; 300. Strip slide plate; 301. Push rod; 302. L-shaped plate; 303. Telescopic spring; 304. Rack; 305. Gear; 306. Swing rod; 307. L-shaped locking rod; 308. Locking groove plate; 409. Telescopic hydraulic rod; 401. Fixed post; 402. Slider; 403. Slide groove; 404. Connecting rod; 405. Mounting rod; 406. L-shaped rotating rod; 407. Mounting block. Detailed Implementation

[0036] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] This invention provides an improved car seat with adjustable seat frame angle. The technical solution of this invention is as follows:

[0038] like Figures 1-7 As shown, a car seat with seat frame angle adjustment function includes two movable seats 1, and an L-shaped support block 101 is fixedly connected to the top of each of the two movable seats 1. A fixed shaft 102 is fixedly connected to both L-shaped support blocks 101.

[0039] Two frame plates 103 are fixedly connected to both ends of the fixed shaft 102, and a fixed rod 104 is fixedly connected to the side of the two frame plates 103 that are close to each other.

[0040] Two fixed rails 2 are fixedly connected to the two frame plates 103 on their respective sides that are close to each other. Sliding rods 201 are slidably connected to the two fixed rails 2. One end of the two sliding rods 201 is fixedly connected to a leg support plate 202.

[0041] A sliding adjustment mechanism is located on the leg support plate 202 and is used to adjust the leg support plate 202.

[0042] An angle adjustment mechanism is located on the frame plate 103 and is used to adjust the angle of the frame plate 103.

[0043] A buffer mechanism is located on frame plate 103;

[0044] The sliding adjustment mechanism includes a sliding hole fixedly opened on one side of the leg support plate 202, a strip-shaped slide plate 3 slidably connected in the sliding hole, a push rod 301 fixedly connected to one side of the strip-shaped slide plate 3, a rack 304 fixedly connected to one end of the push rod 301, a swing rod 306 fixedly connected to the side of the two sliding rods 201 that are close to each other, a gear 305 keyed to the swing rod 306, the gear 305 meshing with the rack 304, L-shaped locking rods 307 fixedly connected to both ends of the swing rod 306, and slot plates 308 fixedly connected to the top of the two fixed tracks 2, with the L-shaped locking rods 307 located in the slot plates 308. Each push rod 301 is slidably fitted with an L-shaped plate 302. One end of the L-shaped plate 302 is fixedly connected to one side of the leg support plate 202. A telescopic spring 303 is fitted onto the push rod 301. The two ends of the telescopic spring 303 are fixedly connected to the strip slide plate 3 and the L-shaped plate 302, respectively. With the setting of the sliding adjustment mechanism, when adjusting the leg support plate 202 outward, it is not necessary to install the strip slide plate 3; it can be pulled outward directly. When adjusting the leg support plate 202 inward, it can automatically reset. This makes it easier to adjust the leg support plate 202, thus making the operation more convenient.

[0045] Furthermore, the angle adjustment mechanism includes a mounting rod 405 fixedly connected to one side of the two frame plates 103 that are close to each other. Two L-shaped rotating rods 406 are rotatably connected to the mounting rod 405. The bottom ends of the two L-shaped rotating rods 406 are rotatably connected to mounting blocks 407. The bottom ends of the two mounting blocks 407 are respectively fixedly connected to the tops of the two movable seats 1. The two movable seats 1 have a sliding groove 403 on one side that is close to each other. A slider 402 is slidably connected in the two sliding grooves 403. The two sliders 402 are fixedly connected to a fixed column 401 on one side that is close to each other. Two connecting rods 404 are rotatably connected to the fixed column 401 and the mounting rod 405. A telescopic hydraulic rod 4 is rotatably connected to the fixed column 401 and the fixed shaft 102. Through the setting of the angle adjustment mechanism, the angle of the seat frame can be adjusted, thereby better adapting to different users.

[0046] Furthermore, a fixing block 204 is fixedly connected to the top of one of the fixed tracks 2, and a telescopic rod 205 is fixedly connected to one side of the fixing block 204. One end of the telescopic rod 205 is fixedly connected to the leg support plate 202, and a return spring 206 is sleeved on the telescopic rod 205. The two ends of the return spring 206 are fixedly connected to the fixing block 204 and the leg support plate 202 respectively. Through the setting of the return spring 206, the return spring 206 has elasticity, which realizes the automatic reset of the leg support plate 202.

[0047] Furthermore, limit posts 207 are fixedly connected to both sides of the leg support plate 202, and limit grooves are opened on one side of both frame plates 103. Arc blocks 208 are fixedly connected in both limit grooves, and the two limit posts 207 contact the two arc blocks 208 respectively. The arc blocks 208 are made of rubber, which reduces the impact force of the limit posts 207.

[0048] Furthermore, the buffer mechanism includes four L-shaped rods 109 fixedly connected to the two frame plates 103 on their adjacent sides. Each of the four L-shaped rods 109 has a groove at its top, and a movable rod 110 is slidably connected within each groove. A fixed frame 107 is fixedly connected to the top of each of the four movable rods 110. A buffer spring 111 is sleeved on each of the four movable rods 110. The two ends of the buffer spring 111 are fixedly connected to the L-shaped rods 109 and the frame plates 103, respectively. Two bent spring pieces 106 are fixedly connected to both sides of the frame plates 103. A rotating ring 105 is fixedly connected to the bottom of each of the four bent spring pieces 106. The four rotating rings 105 are rotatably connected to the fixed shaft 102 and the fixed rod 104, respectively. Through the buffer springs 111, the L-shaped rods 109 and the movable rods 110 can be combined to form a telescopic assembly. In cooperation with the buffer springs 111, this assembly can buffer the fixed frame 107, thereby improving the cushioning effect of the seat.

[0049] Furthermore, multiple connecting springs 108 are fixedly connected to the inner wall of the frame plate 103, and the multiple connecting springs 108 are parallel to the two frame plates 103; the connection springs 108 improve the comfort of the seat.

[0050] Furthermore, the slot of the slot plate 308 is inclined, and the slot is inclined upward towards the leg support plate 202. The bottom of the leg support plate 202 is fixedly connected to the baffle 203. By setting the slot, the slot is inclined, which makes it easy to pull the leg support plate 202.

[0051] Working principle: When adjusting the leg support plate 202, hold the bottom of the leg support plate 202 and pull it outward. The movement of the leg support plate 202 drives the two sliding rods 201 to move. The movement of the two sliding rods 201 drives the swing rod 306 and the L-shaped locking rod 307 to move, so that the L-shaped locking rod 307 moves on the locking plate 308 until the leg support plate 202 moves to the desired position. The movement of the leg support plate 202 drives the telescopic rod 205 to extend, and at the same time drives the return spring 206 to extend and undergo elastic deformation. When adjusting in the opposite direction, hold the leg support plate 202 and press the strip slide plate 3 to move it. The movement of the strip slide plate 3 drives the push rod 301 and the rack 304 to move. The movement of the strip slide plate 3 drives the telescopic spring 303 to compress and undergo elastic deformation, and the movement of the rack 304 drives the return spring 306 to extend and undergo elastic deformation. The rotating gear 305 drives the swing rod 306 and the L-shaped locking rod 307 to rotate, causing the L-shaped locking rod 307 to move away from the slot plate 308. At this time, the return spring 206, which is in a stretched state, will drive the leg support plate 202 to return to its original position until the leg support plate 202 returns to the desired position and stops pressing the strip slide plate 3. This causes the telescopic spring 303 to return to its original position and drive the L-shaped locking rod 307 into the slot plate 308. When adjusting the leg support plate 202 outward, it is not necessary to press the strip slide plate 3; simply pull it outward. When adjusting the leg support plate 202 inward, the leg support plate 202 can automatically return to its original position under the elastic force of the return spring 206. This facilitates the adjustment of the leg support plate 202 and makes it easier to operate.

[0052] Activating the telescopic hydraulic rod 4 can move the fixed column 401 and the slider 402. The movement of the fixed column 401 drives the connecting rod 404 to move, which, in conjunction with the L-shaped rotating rod 406, pushes the mounting rod 405 upward. The movement of the mounting rod 405 drives the two frame plates 103 to move upward, causing the frame plates 103 to rotate around the fixed shaft 102, thereby achieving angle adjustment of the seat frame and making it more suitable for different users.

[0053] The L-shaped rod 109 and the movable rod 110 can be combined to form a telescopic assembly. In conjunction with the buffer spring 111, they can buffer the fixed frame 107, thereby improving the cushioning effect of the seat and making it more comfortable for people sitting in the seat.

[0054] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A car seat with adjustable seat frame angle, comprising two movable seats (1), characterized in that: The top of each of the two movable seats (1) is fixedly connected to an L-shaped support block (101), and a fixed shaft (102) is fixedly connected to both of the L-shaped support blocks (101); Two frame plates (103) are fixedly connected to the two ends of the fixed shaft (102), and a fixed rod (104) is fixedly connected to the side of the two frame plates (103) that are close to each other. Two fixed rails (2) are fixedly connected to the two frame plates (103) on the side of each other. Sliding rods (201) are slidably connected to the two fixed rails (2). One end of the two sliding rods (201) is fixedly connected to a leg support plate (202). A sliding adjustment mechanism is located on the leg support plate (202) and is used to adjust the leg support plate (202); An angle adjustment mechanism is located on the frame plate (103) and is used to adjust the angle of the frame plate (103). A buffer mechanism is located on the frame plate (103); The sliding adjustment mechanism includes a sliding hole fixedly opened on one side of the leg support plate (202), a strip-shaped sliding plate (3) slidably connected in the sliding hole, a push rod (301) fixedly connected to one side of the strip-shaped sliding plate (3), a rack (304) fixedly connected to one end of the push rod (301), and a swing rod (306) fixedly connected to the side of the two sliding rods (201) that are close to each other. A gear (305) is keyed to the swing rod (306), and the gear (305) meshes with the rack (304). The two ends of the swing rod (306) are... Each of the two fixed tracks (2) is fixedly connected with an L-shaped locking rod (307), and the top of each of the two fixed tracks (2) is fixedly connected with a slot plate (308). The L-shaped locking rod (307) is located inside the slot plate (308). An L-shaped plate (302) is slidably sleeved on each push rod (301). One end of the L-shaped plate (302) is fixedly connected to one side of the leg support plate (202). A telescopic spring (303) is sleeved on the push rod (301). The two ends of the telescopic spring (303) are fixedly connected to the strip slide plate (3) and the L-shaped plate (302) respectively.

2. A car seat with adjustable seat frame angle according to claim 1, characterized in that: The angle adjustment mechanism includes a mounting rod (405) fixedly connected to one side of the two frame plates (103) close to each other. Two L-shaped rotating rods (406) are rotatably connected to the mounting rods (405). The bottom ends of the two L-shaped rotating rods (406) are rotatably connected to mounting blocks (407). The bottom ends of the two mounting blocks (407) are respectively fixedly connected to the top of the two movable seats (1).

3. A car seat with adjustable seat frame angle according to claim 2, characterized in that: Each of the two movable seats (1) has a sliding groove (403) on one side close to each other. Each of the two sliding grooves (403) has a slider (402) slidably connected in the two sliding grooves (403). The two sliders (402) are fixedly connected to a fixed column (401) on one side close to each other. The fixed column (401) is rotatably connected to two connecting rods (404) on the mounting rod (405). The fixed column (401) is rotatably connected to a telescopic hydraulic rod (4) on the fixed shaft (102).

4. A car seat with adjustable seat frame angle according to claim 2, characterized in that: A fixing block (204) is fixedly connected to the top of one of the fixed tracks (2). A telescopic rod (205) is fixedly connected to one side of the fixing block (204). One end of the telescopic rod (205) is fixedly connected to the leg support plate (202). A return spring (206) is sleeved on the telescopic rod (205). The two ends of the return spring (206) are fixedly connected to the fixing block (204) and the leg support plate (202) respectively.

5. A car seat with adjustable seat frame angle according to claim 4, characterized in that: Both sides of the leg support plate (202) are fixedly connected to limit posts (207), and one side of each of the two frame plates (103) is provided with a limit groove. An arc-shaped block (208) is fixedly connected in each of the two limit grooves, and the two limit posts (207) are in contact with the two arc-shaped blocks (208) respectively.

6. A car seat with adjustable seat frame angle according to claim 1, characterized in that: The buffer mechanism includes four L-shaped rods (109) that are fixedly connected to the two frame plates (103) on one side close to each other. Each of the four L-shaped rods (109) has a groove at its top end. Each of the four grooves has a movable rod (110) that is slidably connected to it. The top ends of the four movable rods (110) are fixedly connected to a fixed frame (107). Each of the four movable rods (110) is fitted with a buffer spring (111). The two ends of the buffer spring (111) are fixedly connected to the L-shaped rods (109) and the frame plates (103) respectively.

7. A car seat with adjustable seat frame angle according to claim 6, characterized in that: Two bent spring pieces (106) are fixedly connected to both sides of the frame plate (103), and a rotating ring (105) is fixedly connected to the bottom end of each of the four bent spring pieces (106). The four rotating rings (105) are respectively rotatably connected to the fixed shaft (102) and the fixed rod (104).

8. A car seat with adjustable seat frame angle according to claim 7, characterized in that: Multiple connecting springs (108) are fixedly connected to the inner wall of the frame plate (103), and the multiple connecting springs (108) are parallel to the two frame plates (103).

9. A car seat with adjustable seat frame angle according to claim 1, characterized in that: The slot of the slot plate (308) is inclined and the slot is inclined upward towards the leg support plate (202). A baffle (203) is fixedly connected to the bottom of the leg support plate (202).

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