Polyurethane composite cushion

Abstract

The utility model discloses a polyurethane composite seat cushion which comprises a composite seat cushion body, a seat plate containing hole is formed in the rear portion of the composite seat cushion body, and a seat plate is installed on the portion, located in the seat plate containing hole, of the composite seat cushion body. A plane structure is arranged at the position, located in front of the seat plate containing hole, of the composite cushion body, arc-shaped inwards-concave structures are arranged on the positions, located on the two sides of the plane structure, of the composite cushion body, and a plurality of inwards-concave grooves are formed in the positions, located on the surfaces of the arc-shaped inwards-concave structures, of the composite cushion body. According to the chair, most of the seat plate is in a suspended state due to the seat plate accommodating holes in the outer side of the periphery of the seat plate, so that the seat plate has a certain buffering performance, the use comfort is better, and the fitting degree with the buttocks of a human body is higher due to the arc-shaped concave seat plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyurethane cushion technical field, specifically a kind of polyurethane composite cushion. BACKGROUND

[0002] Most of the cushion is single-component material, such as sponge material, but the general sponge material is poor in shape, and can ensure comfort in initial use, but it is easy to collapse and reduce comfort after a long time. Another is a shaped sponge, which is not easy to collapse due to its high hardness, but the comfort is generally low when used. Therefore, the performance of the single-component cushion is not superior.

[0003] The existing patent No. CN220477314U discloses a polyurethane composite cushion, which comprises a cushion bottom layer, a cushion middle layer arranged above the cushion bottom layer, and a cushion top layer arranged on the cushion middle layer. The hardness of the cushion bottom layer is greater than that of the cushion middle layer, and the hardness of the cushion middle layer is greater than that of the cushion top layer. The composite cushion is stacked by the cushion bottom layer, the cushion middle layer and the cushion top layer with different hardness. The hardness of the cushion top layer, the cushion middle layer and the cushion bottom layer gradually increases, among which the softness of the cushion top layer is the best, which can effectively relieve hip fatigue. The cushion bottom layer plays a good supporting role, and the hardness of the cushion middle layer is between that of the cushion top layer and the cushion bottom layer, which can play a good transition role.

[0004] The existing cushion is relatively hard, has poor cushioning performance, and poor air permeability. To solve the above technical problems, we propose a polyurethane composite cushion. INVENTION CONTENTS

[0005] The utility model aims at providing a polyurethane composite cushion to solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a polyurethane composite cushion, comprising a composite cushion main body, a seat plate containing hole is arranged at the rear part of the composite cushion main body, and a seat plate is installed in the seat plate containing hole of the composite cushion main body; a flat structure is arranged in front of the seat plate containing hole of the composite cushion main body, arc-shaped concave structures are arranged on both sides of the flat structure of the composite cushion main body, and a plurality of concave grooves are arranged on the surface of the arc-shaped concave structures of the composite cushion main body.

[0007] Preferably, two arc-shaped structures are arranged at the front part of the composite cushion main body, and the two arc-shaped structures and the front part of the composite cushion main body form a W-shaped structure.

[0008] Preferably, the shape of the composite cushion main body is L-shaped, the composite cushion main body comprises a base plate and a polyurethane pad, and the polyurethane pad is installed on the top of the base plate.

[0009] Preferably, the substrate adopts a metal plate or a plastic plate.

[0010] Preferably, the seat plate is in a semicircular shape and has an arc-shaped concave structure.

[0011] Preferably, the seat plate is provided with multiple through holes at equal intervals.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The rear part of the composite seat cushion main body is provided with a seat plate accommodating hole, and the seat plate is installed in the seat plate accommodating hole.

[0014] 2. The seat plate is provided with multiple through holes at equal intervals.

[0015] 3. The front part of the composite seat cushion main body is provided with two arc-shaped structures. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the utility model, constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model, and do not constitute a limitation on the utility model.

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 It is a sectional view of the utility model;

[0020] Figure 4 It is a structural schematic view of the utility model with a through hole.

[0021] In the drawing: 1, composite seat cushion main body; 2, seat plate; 3, seat plate accommodating hole; 4, arc-shaped concave structure; 5, concave groove; 6, plane structure; 7, arc-shaped structure; 11, substrate; 12, polyurethane pad; 21, through hole. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0023] Please see Figures 1-3 In this embodiment of the utility model, a polyurethane composite seat cushion includes a composite seat cushion body 1. A seat plate receiving hole 3 is provided at the rear of the composite seat cushion body 1. A seat plate 2 is installed within the seat plate receiving hole 3 on the composite seat cushion body 1. The seat plate 2 is semi-circular in shape and has an arc-shaped concave structure. The seat plate receiving hole 3 around the outer side of the seat plate 2 allows most of the seat plate 2 to be suspended, thus providing a certain cushioning performance and good comfort. The arc-shaped concave shape of the seat plate 2 also ensures a high degree of fit with the human buttocks. A planar structure 6 is provided in front of the seat plate receiving hole 3 on the composite seat cushion body 1. Arc-shaped concave structures 4 are provided on both sides of the planar structure 6 on the composite seat cushion body 1. The arc-shaped concave structures 4 can adapt well to the shape of the human leg. Multiple grooves 5 are provided on the surface of the arc-shaped concave structures 4 on the composite seat cushion body 1, which can improve the breathability of the seat cushion.

[0024] The composite cushion body 1 has two arc-shaped structures 7 at the front. The two arc-shaped structures 7 and the front of the composite cushion body 1 form a W-shaped structure. The arc-shaped structures 7 can adapt well to the shape of a person's legs when they are bent, and provide good support for the legs.

[0025] The composite seat cushion body 1 is L-shaped and includes a base plate 11 and a polyurethane pad 12. The polyurethane pad 12 is installed on the top of the base plate 11. The base plate 11 is made of metal plate or plastic plate.

[0026] like Figure 4 The seat plate 2 has multiple through holes 21 at equal intervals. The design of multiple through holes can greatly improve the breathability of the seat cushion.

[0027] The utility model discloses a working principle is: the composite cushion main part 1 rear part is equipped with the seat plate containing hole 3, the composite cushion main part 1 is located the seat plate containing hole 3 in the installation of seat plate 2, and the shape of seat plate 2 is semicircle, and seat plate 2 is arc concave structure, and the seat plate containing hole 3 of seat plate 2 around outside makes seat plate 2 most in the state of suspension, thereby make seat plate 2 have certain buffer performance, and the comfort degree of use is better, and the seat plate 2 of arc concave shape makes the fit degree of higher with human hip.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the utility model and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A polyurethane composite seat cushion comprising a composite seat cushion body (1) characterized in that: The composite seat cushion body (1) is provided with a seat plate containing hole (3) in the rear part, the seat plate (2) is installed in the seat plate containing hole (3) of the composite seat cushion body (1), the composite seat cushion body (1) is provided with a plane structure (6) in front of the seat plate containing hole (3), the composite seat cushion body (1) is provided with an arc-shaped concave structure (4) on both sides of the plane structure (6), and a plurality of concave grooves (5) are formed on the surface of the arc-shaped concave structure (4).

2. The polyurethane composite seat cushion according to claim 1, wherein: The composite seat cushion body (1) is provided with two arc-shaped structures (7) in the front part, and the two arc-shaped structures (7) and the front part of the composite seat cushion body (1) form a W-shaped structure.

3. The polyurethane composite seat cushion of claim 1, wherein: The composite seat cushion body (1) is L-shaped, and the composite seat cushion body (1) comprises a base plate (11) and a polyurethane pad (12), and the polyurethane pad (12) is installed on the top of the base plate (11).

4. The polyurethane composite seat cushion according to claim 3, wherein: The base plate (11) is made of a metal plate or a plastic plate.

5. The polyurethane composite seat cushion of claim 1, wherein: The seat plate (2) is semicircular, and the seat plate (2) is an arc-shaped concave structure.

6. A polyurethane composite seat cushion according to claim 5, wherein: A plurality of through holes (21) are formed at equal intervals in the seat plate (2).

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