Rubber composite material sheet with good air permeability

Abstract

The utility model relates to the technical field of rubber sheets, in particular to a rubber composite sheet with good air permeability. According to the technical scheme, the rubber sheet comprises a first bonding layer, a second bonding layer, a first rubber sheet body and a second rubber sheet body, the upper surface of the first rubber sheet body and the lower surface of the second rubber sheet body are fixedly connected through the first bonding layer, and a plurality of stepped air holes are evenly formed in the upper surface of the first rubber sheet body and the lower surface of the second rubber sheet body. The lower surface of the first rubber sheet and the upper surface of the second rubber sheet are fixedly connected with waterproof breathable cloth through second bonding layers. The air permeability of the rubber sheet can be improved, and the wearing comfort of a rubber sheet product is improved.

Description

A breathable rubber composite sheet Technical Field

[0001] This utility model relates to the field of rubber sheet technology, specifically to a rubber composite sheet with good air permeability. Background Technology

[0002] Rubber sheets are sheet-like materials made from natural or synthetic rubber as the base material. Their manufacturing process involves multiple intricate steps, including mixing, molding, and vulcanization, which endow them with a variety of properties. Rubber sheets exhibit excellent elasticity, quickly returning to their original shape after being subjected to stress. They also possess excellent wear resistance, weather resistance, and chemical corrosion resistance, as well as outstanding electrical insulation. In the industrial field, they are commonly used to make conveyor belts and sealing gaskets to ensure the stable operation of production equipment. In the construction industry, they serve as waterproof membranes and sound insulation and vibration damping materials, providing waterproofing and noise reduction functions. In everyday consumer goods, they are commonly found in anti-slip mats and yoga mats, offering a non-slip and comfortable experience. Their diverse characteristics make them an indispensable basic material for many industries.

[0003] While current rubber sheets offer numerous advantages such as softness and wear resistance, they suffer from poor breathability. This can cause stuffiness and discomfort, especially when wearing products made from rubber sheets, particularly during prolonged use or in high-temperature environments. Therefore, we propose a rubber composite sheet with better breathability. Summary of the Invention

[0004] The purpose of this invention is to provide a rubber composite sheet with good breathability, which has the advantages of improving the breathability of rubber sheets and improving the comfort of wearing rubber sheet products. It solves the problem that although current rubber sheets have many advantages such as softness and wear resistance, their breathability is poor. In particular, when wearing products made of rubber sheets, the human body will feel stuffy and uncomfortable, especially when using them for a long time or in high-temperature environments, this discomfort will be more obvious.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rubber composite sheet with good air permeability, comprising a first adhesive layer, a second adhesive layer, a first rubber sheet, and a second rubber sheet. The upper surface of the first rubber sheet and the lower surface of the second rubber sheet are fixedly connected by the first adhesive layer. The upper surface of the first rubber sheet and the lower surface of the second rubber sheet are each provided with a plurality of stepped air perforations. The lower surface of the first rubber sheet and the upper surface of the second rubber sheet are both fixedly connected with a waterproof and breathable fabric by the second adhesive layer.

[0006] Preferably, the stepped air vents on the upper surface of the first rubber sheet and the stepped air vents on the lower surface of the second rubber sheet correspond one-to-one.

[0007] Preferably, a sealing rubber sleeve is provided inside the stepped vent hole, and a water-absorbing and expanding resin is provided inside the sealing rubber sleeve. The outer surface of the sealing rubber sleeve is provided with a plurality of water inlet holes in a ring array at equal intervals. When the waterproof and breathable fabric at the location of the stepped vent hole is damaged, water enters the stepped vent hole and then enters the sealing rubber sleeve through the water inlet holes. It is absorbed by the water-absorbing and expanding resin. After absorbing water, the water-absorbing and expanding resin expands, causing the sealing rubber sleeve to expand inside the stepped vent hole, thereby sealing the stepped vent hole and preventing water from continuing to pass through the stepped vent hole.

[0008] Preferably, the inner diameter of the stepped vent hole is larger than the outer diameter of the sealing rubber sleeve, so that the sealing rubber sleeve will not obstruct air when it passes through the stepped vent hole.

[0009] Preferably, the upper and lower surfaces of the sealing rubber sleeve are provided with a number of protrusions in a ring array at equal intervals near the edge. The protrusions help to elastically fix the sealing rubber sleeve inside the stepped vent hole, effectively prevent the sealing rubber sleeve from shaking inside the stepped vent hole, and do not affect the air permeability of the stepped vent hole.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model achieves the effect of improving the breathability of the rubber sheet and enhancing the comfort of wearing rubber sheet products by setting a first rubber sheet, a second rubber sheet, stepped ventilation holes, a first adhesive layer, a second adhesive layer, and a waterproof and breathable fabric. The first rubber sheet, the second rubber sheet, the first adhesive layer, the second adhesive layer, and the waterproof and breathable fabric constitute a composite rubber sheet. The stepped ventilation holes improve the breathability of the composite rubber sheet, while the waterproof and breathable fabric prevents moisture from entering the stepped ventilation holes and passing through the composite rubber sheet.

[0012] 2. This utility model achieves the effect of sealing the stepped vent holes when water enters them by setting a sealing rubber sleeve, a water inlet hole, and a protrusion. When the waterproof and breathable cloth at the stepped vent hole is damaged, water will enter the stepped vent hole and then enter the sealing rubber sleeve through the water inlet hole. It will be absorbed by the water-absorbing and expanding resin. After absorbing water, the water-absorbing and expanding resin expands, causing the sealing rubber sleeve to expand inside the stepped hole, thereby sealing the stepped vent hole and preventing water from continuing to pass through it.

[0013] 3. By setting up protrusions, this utility model facilitates the elastic fixation of the sealing rubber sleeve inside the stepped ventilation hole, effectively preventing the sealing rubber sleeve from shaking inside the stepped ventilation hole, while not affecting the ventilation of the stepped ventilation hole. Attached Figure Description

[0014] Figure 1 is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 is a partial three-dimensional structural diagram of the first rubber sheet of this utility model;

[0016] Figure 3 is a schematic diagram of the main cross-sectional structure of this utility model;

[0017] Figure 4 is a partial three-dimensional cross-sectional view of the sealing rubber sleeve of this utility model.

[0018] Reference numerals: 1. First adhesive layer; 2. Second adhesive layer; 3. First rubber sheet; 4. Second rubber sheet; 5. Waterproof and breathable fabric; 6. Stepped ventilation holes; 7. Sealing rubber sleeve; 8. Protrusion; 9. Water-absorbing and expanding resin; 10. Water inlet hole. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1

[0021] As shown in Figures 1-3, the present invention proposes a rubber composite sheet with good air permeability, comprising a first adhesive layer 1, a second adhesive layer 2, a first rubber sheet 3, and a second rubber sheet 4. The upper surface of the first rubber sheet 3 and the lower surface of the second rubber sheet 4 are fixedly connected by the first adhesive layer 1. The upper surface of the first rubber sheet 3 and the lower surface of the second rubber sheet 4 are each provided with a plurality of stepped air perforations 6. The stepped air perforations 6 on the upper surface of the first rubber sheet 3 and the stepped air perforations 6 on the lower surface of the second rubber sheet 4 correspond one-to-one. The lower surface of the first rubber sheet 3 and the upper surface of the second rubber sheet 4 are both fixedly connected with a waterproof and breathable fabric 5 by the second adhesive layer 2.

[0022] In this embodiment, the first rubber sheet 3, the second rubber sheet 4, the first adhesive layer 1, the second adhesive layer 2, and the waterproof and breathable fabric 5 constitute a composite rubber sheet. The stepped ventilation holes 6 can improve the breathability of the composite rubber sheet, while the waterproof and breathable fabric 5 can prevent moisture from entering the interior of the stepped ventilation holes 6 and passing through the composite rubber sheet.

[0023] Example 2

[0024] As shown in Figures 1-4, the present invention proposes a rubber composite sheet with good air permeability. Compared with Embodiment 1, this embodiment further includes a sealing rubber sleeve 7 inside the stepped air vent 6, and a water-absorbing and expanding resin 9 inside the sealing rubber sleeve 7. The outer surface of the sealing rubber sleeve 7 is provided with a plurality of water inlet holes 10 arranged in a ring array at equal intervals. The inner diameter of the stepped air vent 6 is larger than the outer diameter of the sealing rubber sleeve 7, so the sealing rubber sleeve 7 will not obstruct air when passing through the stepped air vent 6. The upper and lower surfaces of the sealing rubber sleeve 7 are provided with a plurality of protrusions 8 arranged in a ring array at equal intervals near the edge. The protrusions 8 are integrally formed with the sealing rubber sleeve 7. The arrangement of the protrusions 8 is conducive to the elastic fixation of the sealing rubber sleeve 7 inside the stepped air vent 6, effectively preventing the sealing rubber sleeve 7 from shaking inside the stepped air vent 6, while not affecting the air permeability of the stepped air vent 6.

[0025] In this embodiment, when the waterproof and breathable fabric 5 at the step vent 6 is damaged, water enters the step vent 6 and then enters the sealing rubber sleeve 7 through the water inlet 10. It is absorbed by the water-absorbing and expanding resin 9. After absorbing the water, the water-absorbing and expanding resin 9 expands, causing the sealing rubber sleeve 7 to expand inside the step hole, thereby sealing the step vent 6 and preventing water from continuing to pass through the step vent 6.

[0026] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A rubber composite sheet with good air permeability, comprising a first adhesive layer (1), a second adhesive layer (2), a first rubber sheet (3), and a second rubber sheet (4), characterized in that: The upper surface of the first rubber sheet (3) and the lower surface of the second rubber sheet (4) are fixedly connected by the first adhesive layer (1). The upper surface of the first rubber sheet (3) and the lower surface of the second rubber sheet (4) are each provided with a plurality of stepped ventilation holes (6). The lower surface of the first rubber sheet (3) and the upper surface of the second rubber sheet (4) are both fixedly connected with waterproof and breathable fabric (5) by the second adhesive layer (2).

2. The air-permeable rubber composite sheet according to claim 1, characterized in that: The stepped ventilation holes (6) on the upper surface of the first rubber sheet (3) correspond one-to-one with the stepped ventilation holes (6) on the lower surface of the second rubber sheet (4).

3. The air-permeable rubber composite sheet according to claim 1, characterized in that: The stepped vent hole (6) is provided with a sealing rubber sleeve (7), the sealing rubber sleeve (7) is provided with water-absorbing and expanding resin (9), and the outer surface of the sealing rubber sleeve (7) is provided with a number of water inlet holes (10) arranged in a ring array at equal intervals.

4. The air-permeable rubber composite sheet according to claim 3, characterized in that: The inner diameter of the stepped vent (6) is larger than the outer diameter of the sealing rubber sleeve (7).

5. The rubber composite sheet material of claim 4, wherein: The sealing rubber sleeve (7) has several protrusions (8) arranged in a ring array at equal intervals on the upper and lower surfaces near the edge.

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