Safety cushion

Abstract

The utility model discloses a safe seat cushion, utilize the combined spare of base and flat plate spare to replace the seat cushion base plate in the prior art, and according to the safety belt connection type, set up the protection cover on the flat plate spare to form the connecting space or directly through the sinking flat plate spare to form the connecting space, and the flat plate spare is connected with the base through the scattered multiple points (supporting spare), and the torsional rigidity of flat plate spare is improved through the scattered multiple points fixation, so that the utility model discloses can adopt the thinner size to obtain the overall mechanical property of replacement, can further reduce the material cost, the base of the utility model can adopt injection molding, and the cost is low, and the production efficiency is high, the flat plate spare of the application is only the plate structure that needs simple trepanning, and the processing is easy, and the processing cost is low, and through setting up flat plate shape, make the whole safe seat cushion relatively flat, when using, the thigh has the proper moving space on the safe seat cushion, will not produce the uncomfortable feeling of thigh jamming.

Description

Technical Field

[0001] This utility model relates to the field of safety technology, and in particular to a safety seat cushion. Background Technology

[0002] The applicant previously filed a series of patents related to automotive safety seat cushions. For example, patent CN119099533A discloses a seat cushion structure with a seat cushion base as the main load-bearing structure. During manufacturing, the center of the seat cushion base needs to be processed into an upwardly convex structure through bending or stamping to form a mounting seat, and then a protective cover is installed on the mounting seat. This structure faces the following problems in actual product manufacturing: First, both the seat cushion base and the protective cover require stamping or bending, which is complex and leads to high costs; second, the upward convex structure of the center of the seat cushion base forming the mounting seat... Therefore, the height difference between the top of the protective cover and the seat base plate is large, requiring thicker sponge to balance the height difference. At the same time, due to the inherent characteristics of the sponge, even after filling with thicker sponge, the thigh areas on both sides of the mounting seat are still severely recessed. Given the limited size of the safety seat cushion (its width cannot exceed that of existing car seats), this results in relatively little legroom for passengers (imagine my thighs are stuck in the recess and unable to move), affecting the riding experience. Thirdly, the seat base plate is generally made of metal sheet, and the stress on a single sheet is concentrated in the mounting area. Therefore, the only way to meet the impact requirements in the event of an accident is to increase the thickness of the metal sheet, resulting in higher costs.

[0003] For example, a previous application for a safety structure for seats (CN119189819A) disclosed a seat cushion base plate that is integrally formed into a mounting base and a protective cover. In addition to the problems mentioned above, the seat cushion base plate requires two stamping processes, which is extremely difficult. Therefore, it is necessary to conduct further research and development on how to produce a more comfortable safety seat cushion with the lowest processing cost to meet market demand. Utility Model Content

[0004] The purpose of this invention is to provide a safety seat cushion to solve the problems of complex processing technology, high cost, and unfavorable marketability of existing safety seat cushions.

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

[0006] This utility model provides a safety seat cushion, comprising:

[0007] The base has several supporting components on it;

[0008] A flat plate covers the base and is supported and fixed by a support member, and has several connecting grooves on it.

[0009] A protective cover, fixed to the flat plate, is used to form a connection space around the connection groove; and

[0010] An elastic buffer layer is provided on the flat plate.

[0011] Furthermore, the protective cover is a U-shaped cover including a horizontal bottom surface, a U-shaped inner side surface, a U-shaped outer side surface, and a top surface. The horizontal bottom surface is provided with mounting holes corresponding to the connecting groove. The U-shaped inner side surface and the U-shaped outer side surface are both three-sided sloping gradually convex shapes.

[0012] Furthermore, the base is provided with several crisscrossing stiffening ribs.

[0013] Furthermore, the base is surrounded by a border.

[0014] Furthermore, the base is provided with ISOFIX hard interface connectors or seat cushion fixing components near both sides at the bottom.

[0015] Furthermore, the seat cushion fixing assembly includes a fixing strap, a hook, and a fixing strap adjuster. The front two sides of the base are recessed to form a first installation space that exposes the flat plate. The fixing strap adjuster is fixed to the flat plate exposed in the first installation space. The first installation space has a first notch on the perimeter near the rear end for the fixing strap to pass through. The bottom of the rear two sides of the base is recessed upward to form a second installation space. The perimeter near the front end of the second installation space has a second notch for the fixing strap to pass through. The hook is fixed to the fixing strap that passes through the second notch.

[0016] Furthermore, the base within the second installation space is provided with a hanging rod for temporarily fixing the hook.

[0017] Furthermore, the connecting groove is a rectangular groove, and each connecting groove is provided with a seat belt buckle.

[0018] This utility model also provides another solution, a safety seat cushion, comprising:

[0019] The base has several supporting components on it;

[0020] A flat plate, covering the base and supported and fixed by a support member, has a recessed U-shaped groove in the middle, and several connecting grooves at the bottom of the U-shaped groove; and

[0021] An elastic buffer layer is provided on the flat plate.

[0022] Furthermore, the connecting groove is a circular groove, and several circular grooves are connected by sliding grooves.

[0023] Furthermore, the bottom of the base is provided with a height-adjusting pad.

[0024] Furthermore, the bottom of the base is provided with a connecting column, connecting groove or connecting block, and the heightening pad is installed at the bottom of the base by any one or more of the following connection methods: screw, interference fit, and snap fastener.

[0025] Furthermore, the support member is a support column or a support block, and the support member is provided with a connection hole for connecting to the flat plate.

[0026] Furthermore, there is a gap space between the bottom lower surface of the U-shaped groove and the upper surface of the base, and the connecting groove is a circular groove, with several circular grooves connected by sliding grooves.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] This application replaces the existing seat base plate with a combination of a base and a flat plate. A support member creates space between the flat plate and the base for installing the female buckle, reducing manufacturing difficulty and cost. Furthermore, the flat plate is connected to the base through multiple distributed points (support members), improving its torsional resistance. This allows for a thinner profile with better overall mechanical properties, further reducing material costs. The base can be injection molded from plastic, resulting in low cost and high production efficiency. The flat plate is a simple plate structure requiring only basic openings, making it easy and inexpensive to process. The flat shape also ensures a relatively flat safety seat, providing adequate legroom even when limited by car seat dimensions, preventing discomfort from the thighs being constricted. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall safety seat cushion in Embodiment 1 provided by this utility model.

[0031] Figure 2 This is an exploded view of the safety seat cushion in Embodiment 1 provided by this utility model.

[0032] Figure 3 This is a schematic diagram of the protective cover in Embodiment 1 provided by this utility model.

[0033] Figure 4 This is a schematic diagram of the bottom of the safety seat cushion in Embodiment 1 provided by this utility model.

[0034] Figure 5 This is a schematic diagram of the seat cushion fixing component installed in the base in Embodiment 1 of this utility model.

[0035] Figure 6 This is a schematic diagram of the overall safety seat cushion in Embodiment 2 of this utility model.

[0036] Figure 7 This is a schematic diagram of the safety seat cushion after the elastic buffer layer has been removed in Embodiment 2 of this utility model.

[0037] Figure 8 This is a partial cross-sectional view of the flat plate component in the U-shaped connection space in Embodiment 2 of this utility model.

[0038] Figure 9 This is a schematic diagram of the seat cushion fixing component as an ISOFIX hard interface connector in Embodiment 3 of this utility model.

[0039] Figure 10 This is a schematic diagram of a buckle in Embodiment 3 of this utility model.

[0040] Figure 11 This is a schematic diagram of the safety seat cushion with a height-increasing pad in Embodiment 4 of this utility model.

[0041] Example 1: 100-base, 110-edge, 111-protruding plate, 120-support member, 130-first mounting space, 131-first notch, 140-second mounting space, 141-second notch; 150-stiffening rib;

[0042] 200 - Flat plate, 210 - Rectangular groove;

[0043] 300 - Protective cover, 310 - Horizontal bottom surface, 311 - Mounting hole, 312 - Edge, 320 - U-shaped inner side surface, 330 - U-shaped outer side surface, 340 - Top surface;

[0044] 400 - Elastic buffer layer, 410 - First elastic layer, 420 - Second elastic layer.

[0045] 500-Seat cushion fixing assembly, 510-Fixing strap, 520-Hook, 530-Fixing strap adjuster, 540-Hanging rod;

[0046] 600-Female buckle, 610-Female buckle, 611-Fixing component, 620-Connecting end, 621-Flat ring, 622-Sliding groove, 623-Opening and closing rod, 624-Threaded sleeve, 625-Rotating shaft, 626-First connecting end, 627-Second connecting end, 628-First limiting protrusion, 629-Second limiting protrusion, 630-Plug-in end, 631-Plug-in hole.

[0047] Example 2: 100a - Base;

[0048] 200a - Metal plate, 210a - Circular groove, 211a - Sliding groove, 220a - U-shaped connection space, 230a - Gap space.

[0049] 700-Height Increasing Pad Detailed Implementation

[0050] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0051] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] Example 1, such as Figure 1 and Figure 2 As shown, this utility model provides a safety seat cushion, comprising:

[0054] A base 100, on which several supporting components 120 are provided;

[0055] A flat plate 200 covers the base 100 and is supported and fixed by a support member 120, and has several connecting grooves on it.

[0056] Protective cover 300, fixed to flat plate 200, is used to form a connection space around the connection groove; and

[0057] An elastic buffer layer 400 is disposed on the flat plate 200.

[0058] This application replaces the existing seat base plate with a combination of base 100 and flat plate 200. The support function of the support member 120 creates a connection space between the flat plate 200 and base 100, reducing manufacturing difficulty and cost. Furthermore, the flat plate 200 is connected to the base 100 via several support members 120. The distributed, multi-point fixation of the support members 120 improves the torsional resistance of the flat plate 200, allowing for the use of thinner metal plates to achieve better overall mechanical properties and further reducing material costs. The base 100 can be manufactured using plastic injection molding, resulting in low cost and high production efficiency. The flat plate 200 is a simple plate structure requiring only simple openings, making it easy and inexpensive to process. Moreover, the flat shape ensures a relatively flat safety seat, providing adequate leg movement even when limited by car seat dimensions, preventing discomfort from the thighs being constricted.

[0059] For example, the support member can be a support column, a support block, or any other connecting structure.

[0060] In some embodiments, the support member 120 is provided with a screw hole at the top, and the flat plate 200 is provided with a corresponding hole or screw hole. By screwing screws or bolts into the screw holes at the top of the support member 120, the flat plate 200 can be quickly and firmly installed on the base 100, and the combination of the two has high mechanical strength to meet the impact resistance requirements of the car during emergency braking.

[0061] In some embodiments, such as Figure 2 As shown, the base 100 is provided with a number of crisscrossing stiffening ribs 150 to increase the overall mechanical performance of the base 100.

[0062] In some embodiments, the base 100 may be made of low-cost materials such as plastic bases, and the flat plate 200 may be made of metal plates that are easy to bend or stamp.

[0063] In some embodiments, such as Figure 1 and Figure 2 As shown, the base 100 is surrounded by a perimeter 110. The perimeter 110 not only increases the torsional resistance of the base 100, but also isolates the space between the base 100 and the flat plate 200 from the outside world, preventing foreign objects from entering.

[0064] In some embodiments, such as Figure 3As shown, the protective cover 300 is a U-shaped cover including a horizontal bottom surface 310, a U-shaped inner side surface 320, a U-shaped outer side surface 330, and a top surface 340. The horizontal bottom surface 310 is provided with mounting holes 311 corresponding to the connecting groove. The U-shaped inner side surface 320 and the U-shaped outer side surface 330 are both three-sided sloping gradually convex shapes. The U-shaped cover of this application can be formed by bending, stamping, casting and other processes, and has the characteristics of simple processing and low cost.

[0065] For example, the outer periphery of the U-shaped cover is provided with an edge 312, and the U-shaped cover can be fixed to the flat plate 200 by welding, screws or riveting at the edge 312.

[0066] In some embodiments, such as Figure 2 and Figure 3 As shown, the front end of the U-shaped cover does not have a side to reduce manufacturing difficulty. The edge 110 of the base 100 is provided with a protruding plate 111 at the corresponding position of the front end of the U-shaped cover to seal the front end opening of the U-shaped cover and prevent foreign objects from entering.

[0067] In some embodiments, such as Figure 1 As shown, the base 100 has cushion fixing components 500 near both sides at its bottom. Figure 4 and Figure 5 As shown in the diagram, this application provides an installation schematic of a seat cushion fixing assembly 500. The seat cushion fixing assembly 500 includes a fixing strap 510, a hook 520, and a fixing strap adjuster 530. The front two sides of the base 100 are recessed to form a first installation space 130 exposing a flat plate 200. The fixing strap adjuster 530 is fixed to the flat plate 200 exposed in the first installation space 130. A first notch 131 for the fixing strap 510 to pass through is provided on the perimeter 110 near the rear end of the first installation space 130. The bottom of the rear two sides of the base 100 is recessed upward to form a second installation space 140. The second installation space 140 has a second notch 141 on the front edge 110 for the fastening strap 510 to pass through. The hook 520 is fixed to the fastening strap 510 that passes through the second notch 141. In this application, the hook 520 is used to hook onto the ISOFIX interface of the car seat, and the fastening strap adjuster 530 is used to tighten the fastening strap 510, thereby firmly fixing the safety cushion to the car seat or similar structure. The fastening strap adjuster 530 can refer to the structure in the prior art, or it can refer to the fastening strap adjuster in the prior patent CN119037325A.

[0068] like Figure 4As shown, the base 100 in the second installation space 140 is provided with a hanging rod 540 for temporarily fixing the hook 520. By setting the hanging rod 540, the safety cushion can hook the hook 520 onto the hanging rod 540 when it is not in use, so as to avoid the hook 520 shaking during transportation and movement, which may cause safety hazards or scratch other structural components.

[0069] For example, such as Figure 1 and Figure 2 As shown, the connecting slot is a rectangular slot 210, and each connecting slot is provided with a seat belt buckle 610. It should be noted that the number of connecting slots is not limited, and is generally 2-5. By setting multiple connecting slots, it can accommodate people of different body types. Figure 1 The insertion of a female buckle 600 into each female buckle 610 in each connecting slot is merely an example and does not imply that a female buckle 600 must be inserted into each female buckle 610.

[0070] For example, this application sets the elastic cushioning layer 400 as a first elastic layer 410 located below and a second elastic layer 420 located above. The modulus of the first elastic layer 410 is greater than that of the second elastic layer 420. The first elastic layer 410 is set to be relatively hard for main cushioning, and the second elastic layer 420 is set to be relatively soft for providing comfort. For example, the first elastic layer 410 is made of a high-resilience polyurethane material, and the second elastic layer 420 is made of soft and comfortable sponge.

[0071] Example 2: As Figure 6 and Figure 7 As shown, the difference between this embodiment and embodiment 1 is that no protective cover is provided, and a U-shaped connecting space 220a is formed by the downward setting of the middle of the front end of the flat plate 200a. The corresponding connecting groove is a circular groove 210a, and several circular grooves 210a are connected by sliding grooves 211a. For the specific connection method, refer to the connection method disclosed in the prior application CN119189819A and connect it to the safety belt. Correspondingly, the front end of the base 100a does not have a protruding plate, but is provided with a groove that matches the downward setting of the middle of the flat plate 200a.

[0072] For example, such as Figure 8 As shown, there is a gap space 230a between the bottom lower surface of the U-shaped connecting space 220a and the upper surface of the base 100a. This gap space provides a connecting space for the selected seat belt connecting device in CN119189819A, so that the connecting seat has a movable space.

[0073] Example 3: As Figure 9 As shown, the difference between this embodiment and embodiment 1 is that the seat cushion fixing component 500 is an ISOFIX hard interface connector 510. The ISOFIX hard interface connector 510 is a standard part that can be installed on both sides of the bottom of the plastic base 100.

[0074] Example 4: The difference between this example and Example 1 lies in the type of sub-fastener. This application provides a sub-fastener, such as... Figure 10 As shown, the female buckle includes a connecting end 620 and a plug-in end 630. The plug-in end 630 is provided with a plug-in hole 631 connected to the female buckle. The connecting end 620 is a flat ring 621. The flat ring 621 has a groove 622 inside for the seat belt to pass through. A notch is opened on one side of the flat ring 621 to form a first connecting end 626 and a second connecting end 627. The second connecting end 627 is hinged to an opening and closing rod 623 through a pivot 625. The other end of the opening and closing rod 623 is connected by a screw. The threaded sleeve 624 is detachably connected to the first connecting end 626, forming a latch within the sliding groove 622 where the seat belt is located. Specifically, the threaded sleeve 624 has internal threads, and the first connecting end 626 has external threads. In this embodiment, for example, one end of the threaded sleeve 624 is sleeved on the opening / closing rod 623, and can be threadedly engaged with the opening / closing rod 623. In other embodiments, a limiting structure is provided between the opening / closing rod 623 and the left end and the flat ring 621, such as... Figure 10 As shown by the dashed line, the limiting structure ensures that the opening / closing rod 623 can only be opened by pressing inwards, thereby improving the reliability of the latch. The limiting structure includes a first limiting protrusion 628 located at the first connecting end 626 and a second limiting protrusion 629 located at the front end of the opening / closing rod 623. The second limiting protrusion 629 is located below the first limiting protrusion 628, ensuring that the opening / closing rod 623 can only be opened by pressing inwards. In some embodiments, to further improve reliability, a torsion spring (not shown in the figure) is provided on the rotating shaft 625, causing the second limiting protrusion 629 of the opening / closing rod 623 to press against the first limiting protrusion 628, preventing the opening / closing rod 623 from becoming loose relative to the first connecting end 626 when the threaded sleeve 624 is not tightened.

[0075] Example 4: Figure 11 As shown, this application provides another embodiment of a safety seat cushion. The difference between this embodiment and embodiment 1 is that the bottom of the base 100 is provided with a height-adjusting pad 700. For example, the bottom of the base 100 is provided with a connecting post, a connecting groove or a connecting block. The height-adjusting pad is installed at the bottom of the base by any one or more of the following connection methods: screw, interference fit, and buckle.

[0076] When using the safety seat cushion of this application, the safety seat cushion is fixed to the car seat or other seat through the ISOFIX hard interface connector or seat cushion fixing assembly 500, the seat belt is fastened according to the existing standard specifications, and then the lateral part of the seat belt is pulled into the connection space between the legs and fixed to the seat belt buckle 610 of the connection groove or the connection groove itself.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A safety seat cushion, characterized in that, include: The base has several supporting components on it; A flat plate covers the base and is supported and fixed by a support member, and has several connecting grooves on it. A protective cover, fixed to the flat plate, is used to form a connection space around the connection groove; and An elastic buffer layer is provided on the flat plate.

2. The safety seat cushion according to claim 1, characterized in that, The protective cover is a U-shaped cover including a horizontal bottom surface, an inner U-shaped side surface, an outer U-shaped side surface, and a top surface. The horizontal bottom surface is provided with mounting holes corresponding to the connecting groove. The inner and outer U-shaped sides are both three-sided sloping gradually convex shapes.

3. The safety seat cushion according to claim 1, characterized in that, The base is provided with several intersecting reinforcing ribs.

4. The safety seat cushion according to claim 1, characterized in that, The base has ISOFIX hard interface connectors or seat cushion fixing components near both sides at the bottom.

5. The safety seat cushion according to claim 4, characterized in that, The base is surrounded by a rim, and the seat cushion fixing assembly includes a fixing strap, a hook, and a fixing strap adjuster. The front two sides of the base are recessed to form a first installation space that exposes a flat plate. The fixing strap adjuster is fixed to the flat plate exposed in the first installation space. The rim of the first installation space near the rear end has a first notch for the fixing strap to pass through. The bottom of the rear two sides of the base is recessed upward to form a second installation space. The rim of the second installation space near the front end has a second notch for the fixing strap to pass through. The hook is fixed to the fixing strap that passes through the second notch.

6. The safety seat cushion according to claim 5, characterized in that, The base within the second installation space is equipped with a hanging rod for temporarily fixing the hook.

7. The safety seat cushion according to claim 1, characterized in that, The connecting groove is a rectangular groove, and each connecting groove is provided with a seat belt buckle.

8. A safety seat cushion, characterized in that, include: The base has several supporting components on it; A flat plate, covering the base and supported and fixed by a support member, has a recessed U-shaped groove in the middle, and several connecting grooves at the bottom of the U-shaped groove; and An elastic buffer layer is provided on the flat plate.

9. The safety seat cushion according to claim 8, characterized in that, There is a gap between the bottom surface of the U-shaped groove and the upper surface of the base. The connecting groove is a circular groove, and several circular grooves are connected by sliding grooves.

10. The safety seat cushion according to claim 1 or 8, characterized in that, The base has a height-adjusting pad at the bottom.

11. The safety seat cushion according to claim 10, characterized in that, The base has a connecting column, connecting groove or connecting block at the bottom, and the heightening pad is installed at the bottom of the base by any one or more of the following connection methods: screw, interference fit, and buckle.

12. The safety seat cushion according to claim 1 or 8, characterized in that, The support component is a support column or a support block, and the support component is provided with a connection hole for connecting to the flat plate component.

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