A fixing device for automobile cushion foam filling
By combining a motor, lead screw, slider structure, and negative pressure adsorption system, the problem of cumbersome installation and unstable fixation of existing car seat cushion foam filling fixing devices has been solved. This enables precise pressing and stabilization of seat cushions of different shapes or sizes, improving the performance and production efficiency of seat components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JINGFAN VEHICLE PARTS CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-29
Smart Images

Figure CN224295688U_ABST
Abstract
Description
Technical Field
[0001] This utility model discloses a fixing device for foam filling of car seat cushions, which relates to the field of automobile manufacturing technology. Background Technology
[0002] With the rapid development of the automotive industry, consumers are placing increasingly higher demands on the comfort, support, and safety of car seats. As a key component of the seat, the internal structure and the method of fixing the filling material directly affect the overall riding experience and the seat's durability. Existing foam filling fixing devices mostly connect the foam to the frame using mechanical clips, adhesive layers, or insert structures. These fixing methods have the following drawbacks: cumbersome installation process, unstable fixing effect, and poor adaptability. Therefore, there is an urgent need for a car seat cushion foam filling fixing device that is simple in structure, easy to install, securely fixed, highly adaptable, and does not damage the foam material, in order to improve production efficiency and product quality and meet the urgent needs of the modern automotive industry for improved seat component performance.
[0003] Chinese Patent Network published patent "CN221871735U" which discloses a fixing device for car seat cushion foam filling, relating to the field of car seat cushion foam filling technology. This utility model's fixing device for car seat cushion foam filling includes a processing table, a fixing mechanism, and an adjusting mechanism. The processing table is hollow inside, and its upper surface has a first sliding groove and a second sliding groove. To address the shortcomings of clamps being unsuitable for fixing car seat cushions of different thicknesses and lacking an adjusting mechanism, this utility model uses a rotating lifting screw to move a pressing plate downwards, pressing and fixing the upper surface of the seat cushion. The adjusting plate allows for adjustment of the seat cushion's position. However, this fixing device suffers from problems such as complex structure, high manufacturing cost, limited adjustment efficiency, insufficient positioning accuracy, uneven contact of the clamping surface, and lack of multi-directional support mechanisms. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a fixing device for foam filling in car seat cushions. Through cooperation with a first motor, lead screw, slider structure, double-ended threaded rod, hydraulic cylinder, and telescopic rod, the device achieves bidirectional synchronous adjustment, improving the accuracy of overall clamping and positioning; it can achieve precise vertical pressing and fixing of seat cushions of different shapes or sizes. A negative pressure adsorption system composed of a honeycomb adsorption plate, a closed air hood, an air duct, a one-way valve, and an air pump can assist in clamping the foam filling material, preventing displacement or warping. Adsorption-assisted fixing is gentler and more uniform, reducing the probability of foam deformation, and simultaneously assisting in the fixing device.
[0005] This utility model also provides a fixing device for foam filling of car seat cushions, comprising: a base, a first groove on the upper surface of the base, a first lead screw on the inner surface of the first groove, a first motor fixedly connected to the outer surface of the base, the output end of the first motor being fixedly connected to the first lead screw, a first slider rotatably connected to the outer surface of the first lead screw, a first frame fixedly connected to the upper surface of the first slider, a first hydraulic cylinder fixedly connected to the lower surface of the first frame, a first telescopic rod fixedly connected to the output end of the first hydraulic cylinder, a first pressure plate fixedly connected to the lower surface of the first telescopic rod, a first horizontal plate fixedly connected to the upper surface of the base, a second groove on the inner surface of the first horizontal plate, and a double-threaded rod on the inner surface of the second groove. A second motor is fixedly connected to the outer surface of the first horizontal plate. The output end of the second motor is fixedly connected to one end of a double-ended threaded rod. A second slider is fixedly connected to the outer surface of the double-ended threaded rod. A second hydraulic cylinder is fixedly connected to the upper surface of the second slider. A second telescopic rod is fixedly connected to the output end of the second hydraulic cylinder. A first bracket is fixedly connected to the outer surface of the second telescopic rod. A base is provided with a first slot on the upper surface of the base. A honeycomb adsorption plate is fixedly connected inside the first slot. A sealed air hood is fixedly connected to the lower surface of the honeycomb adsorption plate. An air guide pipe is provided on the lower surface of the sealed air hood. A one-way air valve is fixedly connected to the outer surface of the air guide pipe. An air pump is fixedly connected to the end of the air guide pipe.
[0006] According to the present invention, a fixing device for foam filling of car seat cushions is provided, wherein a support leg is fixedly connected to the lower surface of the base, and a support pad is provided on the lower surface of the support leg. These components increase friction with the ground and stabilize the device.
[0007] According to the present invention, a fixing device for foam filling of car seat cushions is provided, wherein a first fixing plate is fixedly connected to the outer surface of the first frame, and a brush is fixedly connected to the inner side of the first fixing plate. These components facilitate cleaning of the entire device surface and maintain the device's usability.
[0008] According to the present invention, a fixing device for foam filling of car seat cushions is provided, wherein a limiting plate is provided in the first sliding groove, and the limiting plate is rotatably connected to the double-ended threaded rod. These components prevent excessive displacement of the slider from damaging the device.
[0009] According to the present invention, a fixing device for foam filling of car seat cushions is provided, wherein a first baffle is fixedly connected to the front surface of the base, and the first baffle is fixedly connected to the front surface of the second slide groove. These components prevent the car seat cushion from excessively shifting and sliding off the tabletop.
[0010] According to the present invention, a fixing device for foam filling of car seat cushions is provided, wherein a sealing ring is fixedly connected to the lower surface of the air guide tube, and the lower surface of the sealing ring is fixedly connected to an air pump. These components increase the airtightness of the air pump, ensuring the normal operation of the device.
[0011] According to the present invention, a fixing device for foam filling in car seat cushions is provided, wherein a filling storage box is fixedly connected to the right surface of the first frame. These components facilitate the centralized storage and processing of the filled foam.
[0012] According to the present invention, a fixing device for foam filling of car seat cushions includes a pressure gauge fixedly connected to the upper surface of an air pump, and a vent valve fixedly connected to the rear end of the pressure gauge. These components are used to check whether the air pump can operate normally and to ensure that the air pump can be used properly.
[0013] Compared with existing technologies, a fixing device for car seat cushion foam filling, through cooperation with a first motor, lead screw, slider structure, double-ended threaded rod, hydraulic cylinder, and telescopic rod, allows for bidirectional synchronous adjustment, improving the accuracy of overall clamping and positioning; it can achieve precise vertical pressing and fixing of seat cushions of different shapes or sizes. A negative pressure adsorption system composed of a honeycomb adsorption plate, a closed air hood, an air guide pipe, a one-way valve, and an air pump can assist in clamping the foam filling material, preventing displacement or warping. The adsorption-assisted fixing is gentler and more uniform, reducing the probability of foam deformation, and simultaneously assisting the fixing device. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0015] Figure 1 This is a left-side structural view of the ironing table with fabric-holding function in this practical application;
[0016] Figure 2 This is a right-side structural view of the ironing table with fabric-fixing function in this utility model;
[0017] Figure 3 This is a bottom view of the ironing table with fabric fixing function in this practical application.
[0018] Figure 4 This is a top view of the ironing table with fabric holding function.
[0019] Legend:
[0020] 1. Base; 2. First slide rail; 3. First lead screw; 4. First motor; 5. First slider; 6. First frame; 7. First hydraulic cylinder; 8. First telescopic rod; 9. First pressure plate; 10. First cross plate; 11. Second slide rail; 12. Double-ended threaded rod; 13. Second motor; 14. Second slider; 15. Second hydraulic cylinder; 16. Second telescopic rod; 17. First bracket; 18. First empty slot; 19. Honeycomb adsorption plate; 20. Sealed air hood; 21. Air guide pipe; 22. One-way air valve; 23. Air pump; 24. Support leg; 25. Support pad; 26. First fixing plate; 27. Brush; 28. Limiting plate; 29. First baffle; 30. Sealing ring; 31. Filling and storage box; 32. Pressure gauge; 33. Air release valve Detailed Implementation
[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0022] Reference Figures 1-4 This utility model discloses a fixing device for foam filling in car seat cushions, comprising: a base 1, a first groove 2 on the upper surface of the base 1, a first lead screw 3 on the inner surface of the first groove 2, a limiting plate 28 inside the first groove 2, and the limiting plate 28 being rotatably connected to a double-ended threaded rod 12. A first baffle 29 is fixedly connected to the front surface of the base 1, and the first baffle 29 is fixedly connected to the front surface of a second groove 11. A first motor 4 is fixedly connected to the outer surface of the base 1, and the output end of the first motor 4 is fixedly connected to the first lead screw 3. A first slider 5 is rotatably connected to the outer surface of the first lead screw 3. A first frame 6 is fixedly connected to the upper surface of the first slider 5. A first fixing plate 26 is fixedly connected to the outer surface of the first frame 6, and a brush 27 is fixedly connected to the inner side of the first fixing plate 26. A first hydraulic cylinder 7 is fixedly connected to the lower surface of the first frame 6, and a filling storage box 31 is fixedly connected to the right surface of the first frame 6. The output end of the first hydraulic cylinder 7 is fixedly connected to the first telescopic rod 8. The lower surface of the first telescopic rod 8 is fixedly connected to the first pressure plate 9. The upper surface of the base 1 is fixedly connected to the first horizontal plate 10. The inner surface of the first horizontal plate 10 is provided with the second slide groove 11. The inner surface of the second slide groove 11 is provided with the double-headed threaded rod 12. The outer surface of the first horizontal plate 10 is fixedly connected to the second motor 13. The output end of the second motor 13 is fixedly connected to one end of the double-headed threaded rod 12. The outer surface of the double-headed threaded rod 12 is fixedly connected to the second slider 14. The upper surface of the second slider 14 is fixedly connected to the second hydraulic cylinder 15. The output end of the second hydraulic cylinder 15 is fixedly connected to the second telescopic rod 16. The outer surface of the second telescopic rod 16 is fixedly connected to the first bracket 17.
[0023] Specifically, the first motor 4 is started, driving the first lead screw 3 to rotate, which in turn drives the first slider 5 to slide horizontally within the first slide groove 2, thereby adjusting the position of the first frame 6 and its connected components in the left-right direction to align with the foam material filling position. The second motor 13 is started, driving the second slider 14 to move back and forth within the second slide groove 11 via the double-ended threaded rod 12, thereby adjusting the position of the first support 17 in the depth direction. A limiting plate 28 is provided in the first slide groove 2, which is rotatably connected to the double-ended threaded rod 12 to prevent the moving components from overtraveling or deviating from the working area. The first hydraulic cylinder 7 is started, and its output end drives the first telescopic rod 8 to extend downward, driving the first pressure plate 9 to press down vertically, initially fixing the foam component. At the same time, the telescopic rod 16 of the second hydraulic cylinder 15 can be adjusted according to the volume or position difference of the foam component, driving the first support 17 to assist in positioning it from different directions, ensuring that no displacement or deflection occurs throughout the process.
[0024] The base 1 has a first slot 18 on its upper surface. A honeycomb adsorption plate 19 is fixedly connected inside the first slot 18. A sealed air hood 20 is fixedly connected to the lower surface of the honeycomb adsorption plate 19. An air guide pipe 21 is provided on the lower surface of the sealed air hood 20. A one-way air valve 22 is fixedly connected to the outer surface of the air guide pipe 21. An air pump 23 is fixedly connected to the end of the air guide pipe 21. A sealing ring 30 is fixedly connected to the lower surface of the air guide pipe 21, and the lower surface of the sealing ring 30 is fixedly connected to the air pump 23. A pressure gauge 32 is fixedly connected to the upper surface of the air pump 23, and a vent valve 33 is fixedly connected to the rear end of the pressure gauge 32. A support leg 24 is fixedly connected to the lower surface of the base 1, and a support pad 25 is provided on the lower surface of the support leg 24.
[0025] Specifically, the air pump 23 is started, and the gas is drawn out of the sealed air cover 20 through the air guide pipe 21 to form a negative pressure; the negative pressure acts on the car seat above the honeycomb adsorption plate 19 to achieve adsorption and fixation; the one-way air valve 22 prevents backflow, maintains continuous negative pressure, and ensures that the foam is stably adsorbed on the upper surface of the first empty slot 18.
[0026] Working principle: The first motor 4 is started, driving the first lead screw 3 to rotate, causing the first slider 5 to move left and right along the first slide groove 2, thereby adjusting the position of the first frame 6 and its connecting parts to align the foam filling area. The second motor 13 drives the double-headed threaded rod 12 to rotate, causing the second slider 14 to move back and forth along the second slide groove 11, adjusting the position of the first support 17 in the depth direction. The limiting plate 28 prevents the moving parts from overshooting. Subsequently, the first hydraulic cylinder 7 pushes the first pressure plate 9 downward to press the foam, and the second hydraulic cylinder 15 cooperates to adjust the first support 17, assisting in the positioning of the foam from multiple directions. The air pump 23 is started, drawing air from the sealed air cover 20 through the air guide pipe 21 to create negative pressure. The negative pressure adsorbs and fixes the cushion through the honeycomb adsorption plate 19, and the one-way air valve 22 prevents backflow.
[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A fixing device for foam filling in car seat cushions, characterized in that, include: The base (1) has a first sliding groove (2) on its upper surface and a first lead screw (3) on its inner surface. A first motor (4) is fixedly connected to the outer surface of the base (1). The output end of the first motor (4) is fixedly connected to the first lead screw (3). A first slider (5) is rotatably connected to the outer surface of the first lead screw (3). A first frame (6) is fixedly connected to the upper surface of the first slider (5). A first hydraulic cylinder (7) is fixedly connected to the lower surface of the first frame (6). A first telescopic rod (8) is fixedly connected to the output end of the first hydraulic cylinder (7). A first pressure plate (9) is fixedly connected to the lower surface of the first telescopic rod (8). A first horizontal plate (10) is fixedly connected to the upper surface of the first horizontal plate (10). A second sliding groove (11) is provided on the inner surface of the first horizontal plate (10). A double-headed threaded rod (12) is provided on the inner surface of the second sliding groove (11). A second motor (13) is fixedly connected to the outer surface of the first horizontal plate (10). The output end of the second motor (13) is fixedly connected to one end of the double-headed threaded rod (12). A second slider (14) is fixedly connected to the outer surface of the double-headed threaded rod (12). A second hydraulic cylinder (15) is fixedly connected to the upper surface of the second slider (14). A second telescopic rod (16) is fixedly connected to the output end of the second hydraulic cylinder (15). A first bracket (17) is fixedly connected to the outer surface of the second telescopic rod (16). The base (1) has a first slot (18) on its upper surface. A honeycomb adsorption plate (19) is fixedly connected inside the first slot (18). A closed air hood (20) is fixedly connected to the lower surface of the honeycomb adsorption plate (19). An air guide pipe (21) is provided on the lower surface of the closed air hood (20). A one-way air valve (22) is fixedly connected to the outer surface of the air guide pipe (21). An air pump (23) is fixedly connected to the end of the air guide pipe (21).
2. The fixing device for foam filling of car seat cushions according to claim 1, characterized in that, The base (1) is fixedly connected to a support leg (24), and a support pad (25) is provided on the lower surface of the support leg (24).
3. The fixing device for foam filling of car seat cushions according to claim 1, characterized in that, The first frame (6) has a first fixing plate (26) fixedly connected to its outer surface, and a brush (27) is fixedly connected to the inner side of the first fixing plate (26).
4. The fixing device for foam filling of car seat cushions according to claim 1, characterized in that, A limiting plate (28) is provided in the first groove (2), and the limiting plate (28) and the double-ended threaded rod (12) are rotatably connected.
5. A fixing device for foam filling in car seat cushions according to claim 1, characterized in that, The base (1) has a first baffle (29) fixedly connected to its front surface, and the first baffle (29) is fixedly connected to the front surface of the second slide groove (11).
6. The fixing device for foam filling of car seat cushions according to claim 1, characterized in that, A sealing ring (30) is fixedly connected to the lower surface of the air guide pipe (21), and the lower surface of the sealing ring (30) is fixedly connected to the air pump (23).
7. A fixing device for foam filling in car seat cushions according to claim 1, characterized in that, A filling storage box (31) is fixedly connected to the right surface of the first frame (6).
8. The fixing device for foam filling of car seat cushions according to claim 1, characterized in that, A pressure gauge (32) is fixedly connected to the upper surface of the air pump (23), and a vent valve (33) is fixedly connected to the rear end of the pressure gauge (32).