One-way valve

Abstract

The utility model relates to a one-way valve, relates to the technical field of one-way valves, and aims to solve the problems of high processing difficulty and poor sealing reliability of one-way valves in the prior art. The one-way valve comprises an inlet valve body, a discharge valve body and a sealing piece, the inlet valve body is connected with the discharge valve body, the sealing piece is arranged in a cavity of the inlet valve body, and the sealing piece is connected with the discharge valve body; the sealing piece comprises a sealing section, the sealing section is arranged in the inlet valve body, the inlet valve body is in a sealed state through an annular sealing face, making contact with the inlet valve body, of the sealing section, the sealing section is made of elastic materials, and the sealing section is in a compressed state. The one-way valve is easy to install, compact in structure, small in size, convenient to use, wide in application range, capable of achieving reliable sealing and good in economical efficiency and applicability.

Description

Technical Field

[0001] This utility model relates to the field of one-way valve technology, and in particular to a one-way valve. Background Technology

[0002] A check valve is a type of valve that allows fluid (or liquid) to flow in only one direction. When the fluid flows in the permitted forward direction, the pressure of the fluid pushes the valve core, creating a passage that allows the fluid to pass through smoothly.

[0003] In the existing technology, check valves are generally composed of components such as valve body, ball and spring. The valve body and ball are sealed radially, which is difficult to process and results in poor sealing reliability of check valves. Utility Model Content

[0004] Based on the above analysis, the present invention aims to provide a one-way valve to solve the problems of high processing difficulty and poor sealing reliability of existing one-way valves.

[0005] The objective of this utility model is mainly achieved through the following technical solutions:

[0006] A one-way valve includes an inlet valve body, an outlet valve body, and a seal. The inlet valve body is connected to the outlet valve body, and the seal is disposed in a cavity of the inlet valve body and connected to the outlet valve body.

[0007] The sealing element includes a sealing section inside the inlet valve body. The inlet valve body is sealed by an annular sealing surface that contacts the sealing section. The sealing section is made of an elastic material and is in a compressed state.

[0008] Furthermore, the sealing section is configured in a "trumpet" shape, and the diameter of the sealing section gradually decreases from the inlet valve body to the outlet valve body.

[0009] Furthermore, the discharge valve body includes a connecting portion for connecting the seal and restricting the displacement of the seal.

[0010] Furthermore, the seal also includes a connecting end, which is connected to the sealing section and also to the connecting part.

[0011] Furthermore, the connecting end is located at the axis of the seal.

[0012] Furthermore, the connecting part is a connecting hole, and a connecting head is provided on the connecting end. The connecting head enters the connecting hole to fix the position of the connecting end.

[0013] Furthermore, the discharge valve body also includes a discharge port, which is disposed around the connection portion.

[0014] Furthermore, three outlets are provided around the connecting portion.

[0015] Furthermore, the sealing section is made of highly elastic silicone or rubber material.

[0016] Furthermore, it also includes a fastening ring, which, after the inlet valve body is connected to the outlet valve body, ensures a tight connection between the inlet valve body and the outlet valve body.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0018] (1) The one-way valve of this utility model relies on the pressure of the fluid to push the sealing section away from the valve body, so that the fluid can enter the one-way valve from the inlet hole, realize the function of unidirectional fluid flow, and maintain stable fluid discharge, thereby protecting the system, separating the fluid movement pipeline, and can be easily and quickly inserted according to the installation requirements of the fluid pipeline system.

[0019] (2) When the fluid flows from the outlet to the inlet, the fluid pushes the sealing section to move into the valve body and presses the sealing section into the valve body, thus overcoming the problem that unidirectional fluid flow and reliable sealing cannot be integrated. The function of reliable sealing and unidirectional fluid flow can be achieved without adjustment.

[0020] (3) The one-way valve of this utility model is simple to install, has a compact structure, small size, is easy to use, has good reliability and versatility, and is widely applicable, with good economy and applicability.

[0021] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0022] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0023] Figure 1 This is a schematic diagram of the overall structure of the one-way valve of this utility model;

[0024] Figure 2 This is an exploded view of the one-way valve of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the sealing element and the inlet valve body of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the discharge valve body of this utility model;

[0027] Figure 5 This is a schematic diagram of the transverse cross-section of the one-way valve of this utility model.

[0028] Figure label:

[0029] 1-Inlet valve body; 11-Inlet hole; 2-Outlet valve body; 21-Outlet; 22-Connecting part; 3-Seal; 31-Connecting end; 311-Connecting head; 32-Sealing section; 4-Fastening ring Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0031] A specific embodiment of this utility model discloses a one-way valve, such as... Figures 1-2 As shown, it includes an inlet valve body 1, an outlet valve body 2, and a seal 3. The inlet valve body 1 is connected to the outlet valve body 2, and the seal 3 is disposed in the cavity of the inlet valve body 1 and connected to the outlet valve body 2.

[0032] For example, the inlet valve body 1 is bonded to the outlet valve body 2.

[0033] For example, the inlet valve body 1 is threadedly connected to the outlet valve body 2.

[0034] like Figure 1 and Figure 3 As shown, an inlet hole 11 is provided on the inlet valve body 1, and a sealing element 3 is provided inside the inlet valve body 1. The shape of the sealing element 3 matches the side of the inlet valve body 1 where the inlet hole 12 is provided, so that the cavity of the housing 11 is in a sealed state.

[0035] like Figures 4-5 As shown, the discharge valve body 2 includes a discharge port 21 and a connecting part 22. The position of the connecting part 22 is matched with the position of the seal 3, which is used to connect the seal 3 and restrict the displacement of the seal 3. There are multiple discharge ports 21, which are used to discharge fluid that enters the one-way valve.

[0036] Preferably, the outlet 21 is arranged around the connecting part 22.

[0037] For example, three outlets 21 are provided around the connecting part 22.

[0038] like Figures 2-3 As shown, the seal 3 includes a connecting end 31 and a sealing section 32. The connecting end 31 is connected to the sealing section 32 and to the connecting part 22, which is used to limit the displacement of the seal 3. The sealing section 32 is inside the inlet valve body 1, and the annular sealing surface of the sealing section 32 in contact with the inlet valve body 1 keeps the inlet valve body 1 in a sealed state. The sealing section 32 is configured as a "trumpet" shape, and the diameter of the sealing section 32 gradually decreases from the inlet valve body 1 to the outlet valve body 2. The sealing section 32 is made of elastic material and is in a compressed state.

[0039] Preferably, the connecting end 31 is located at the axis of the seal 3.

[0040] Preferably, the sealing section 32 is made of highly elastic silicone or rubber material.

[0041] For example, such as Figures 3-5 As shown, the connecting part 22 is a connecting hole, and the connecting end 31 is provided with a connecting head 311. The connecting head 311 enters the connecting hole and fixes the position of the connecting end 31, so that the fluid entering the valve body 1 can push the sealing section 32 to be further compressed, so that the sealing section 32 leaves the valve body 1.

[0042] Furthermore, such as Figure 1 As shown, the one-way valve also includes a fastening ring 4. After the inlet valve body 1 is connected to the outlet valve body 2, the connection between the inlet valve body 1 and the outlet valve body 2 is fastened by the fastening ring 4, thereby improving the airtightness of the one-way valve.

[0043] When fluid enters the one-way valve through the inlet hole 11, if the thrust of the fluid on the sealing section 32 is greater than the elastic force generated by the compression of the sealing section 32, the fluid further compresses the sealing section 32, causing the sealing section 32 to move towards the connection end 31 under pressure. When the sealing section 32 moves away from the inlet valve body 1, the fluid enters the cavity of the one-way valve through the gap between the sealing section 32 and the inlet valve body 1, and exits the one-way valve through the outlet 21, realizing unidirectional flow. When the air supply to the inlet hole 11 is stopped, the sealing section 32 resets and moves towards the inlet valve body 1, and the annular sealing surface of the sealing section 32 presses tightly against the inlet valve body 1, so that the inlet valve body 1 is in a sealed state, preventing the fluid from escaping from the inlet hole 11.

[0044] Understandably, when fluid flows from outlet 21 toward inlet 11, the fluid pushes sealing section 32 toward inlet valve body 1 and squeezes sealing section 32 to further press into valve body 1, thereby achieving a more stable sealing effect and increasing the one-way sealing performance of the one-way valve.

[0045] Compared with existing technologies, the one-way valve of this invention relies on the pressure of the medium flow to automatically open or close the annular sealing surface of the sealing section 32. The fluid pressure pushes the annular sealing surface of the sealing section 32 away from the valve body, realizing the function of unidirectional fluid flow and maintaining stable fluid discharge, thereby protecting the system, separating the fluid movement pipeline, and allowing for simple and quick insertion according to the installation requirements of the fluid pipeline system. When the fluid flows from the outlet 21 towards the inlet 11, the fluid pushes the sealing section 32 towards the valve body 1 and further compresses the sealing section 32 into the valve body 1, overcoming the problem of the inability to integrate unidirectional fluid flow and reliable sealing. It achieves the function of reliable sealing and unidirectional fluid flow without adjustment. The one-way valve of this invention is simple to install, compact in structure, small in size, easy to use, reliable and versatile, and has a wide range of applications, exhibiting good economy and applicability.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A one-way valve, characterized in that, It includes an inlet valve body (1), an outlet valve body (2) and a seal (3). The inlet valve body (1) is connected to the outlet valve body (2). The seal (3) is disposed in the cavity of the inlet valve body (1) and is connected to the outlet valve body (2). The sealing element (3) includes a sealing section (32) inside the inlet valve body (1). The inlet valve body (1) is sealed by the annular sealing surface of the sealing section (32) in contact with the inlet valve body (1). The sealing section (32) is made of elastic material and is in a compressed state.

2. The one-way valve according to claim 1, characterized in that, The sealing section (32) is configured in the shape of a "trumpet", and the diameter of the sealing section (32) gradually decreases from the inlet valve body (1) to the outlet valve body (2).

3. The one-way valve according to claim 2, characterized in that, The discharge valve body (2) includes a connecting part (22) for connecting the seal (3) and restricting the displacement of the seal (3).

4. The one-way valve according to claim 3, characterized in that, The sealing element (3) further includes a connecting end (31), which is connected to the sealing section (32) and is also connected to the connecting part (22).

5. The one-way valve according to claim 4, characterized in that, The connecting end (31) is located at the axis of the seal (3).

6. The one-way valve according to claim 4, characterized in that, The connecting part (22) is a connecting hole, and a connector (311) is provided on the connecting end (31). The connector (311) enters the connecting hole and fixes the position of the connecting end (31).

7. The one-way valve according to claim 4, characterized in that, The discharge valve body (2) also includes a discharge port (21) which is arranged around the connection portion (22).

8. The one-way valve according to claim 7, characterized in that, Three outlets (21) are provided around the connecting part (22).

9. The one-way valve according to claim 1, characterized in that, The sealing section (32) is made of highly elastic silicone or rubber material.

10. The check valve according to any one of claims 1-9, characterized in that, It also includes a fastening ring (4). After the inlet valve body (1) is connected to the outlet valve body (2), the fastening ring (4) makes the inlet valve body (1) and the outlet valve body (2) tightly connected.

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