One-way valve structure

Abstract

The utility model relates to the technical field of fluid control, and discloses a one-way valve structure which comprises a shell, a rotating shaft is fixedly arranged on one side in the shell, a stop plate is rotationally arranged on the rotating shaft, and a first support is fixedly arranged on one side of the stop plate. The right side of the one-way valve drives the telescopic rod to support the one-way valve in a matched mode through the spring, when water pressure is generated on the left side, the cut-off plate is pushed away by water, so that the water flows towards the right side, and when fluid in a pipeline flows back, the spring drives the cut-off plate to block the water inlet end all the time. When water flows back, pressure can be generated in the one-way valve to push the cut-off plate to the left side, water flow and the spring can both apply pressure to the cut-off plate, and therefore the sealing performance is improved, compared with a traditional one-way valve, the one-way valve structure is higher in stability and better in reverse sealing performance, and the situation that equipment is damaged due to reverse water seepage can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid control, in particular to a one-way valve structure. Background Art

[0002] A check valve is a valve used to control the flow direction of a fluid, allowing the fluid to flow in one direction only and preventing the fluid from flowing in the opposite direction. Check valves are often used to prevent fluid from flowing back or reflux, protecting pipes and equipment from damage. They are widely used in hydraulic systems, water supply systems, air compressors and other fluid control systems.

[0003] The existing one-way valve structure is not stable enough during use, which may lead to a small amount of reverse seepage of the one-way valve in the later stage, which may cause damage to the equipment. In addition, the traditional one-way valve has a complex structure and is not easy to disassemble quickly for maintenance. It is easy to accumulate scale inside during long-term use. The accumulation of scale will affect the sealing of the one-way valve or affect the flow inside the pipeline.

[0004] Therefore, those skilled in the art provide a one-way valve structure to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings existing in the prior art and proposes a one-way valve structure, in which the right side of the one-way valve is supported by a spring-driven telescopic rod, and when water pressure is generated on the left side, the stop plate is pushed open by water, so that water flows to the right side, and when the fluid inside the pipeline flows back, the spring drives the stop plate to always block the water inlet end, and when water flows back, pressure can also be generated inside the one-way valve to push the stop plate to the left side, and both the water flow and the spring can exert pressure on the stop plate, thereby improving the sealing performance. Compared with the traditional one-way valve, the one-way valve structure has higher stability and better reverse sealing performance, and can avoid the situation where reverse water seepage causes equipment damage.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A one-way valve structure comprises an outer shell, a rotating shaft is fixedly arranged on one side of the inner part of the outer shell, a stop plate is rotatably arranged on the rotating shaft, a first bracket is fixedly arranged on one side of the stop plate, a second bracket is fixedly arranged on the bottom end of the inner part of the outer shell, a telescopic rod is rotatably arranged on the second bracket, a spring is arranged on the telescopic rod, and the bottom of the telescopic rod is rotatably connected to the second bracket.

[0008] Through the above technical solution, the stop plate can rotate around the rotating shaft. When water pressure is generated on the left side, the stop plate is pushed open to ensure fluidity. The spring on the right side drives the telescopic rod to always support the stop plate. When water pressure is generated on the right side, the pressure between the stop plate and the shell can be increased, thereby improving the reverse sealing. The structure is relatively simple and can be more stable.

[0009] Furthermore, a top cover is provided on the top of the housing, fixing bolts are sleeved on the four corners of the top cover, threaded holes are opened on the four corners of the top of the housing, and the four fixing bolts are threadedly connected with the four threaded holes respectively;

[0010] Through the above technical solution, the fixing bolt passes through the top cover and is fixed to the threaded hole to achieve installation of the one-way valve, which can be easily installed and disassembled, so that the internal one-way valve structure can be easily maintained.

[0011] Furthermore, conduits are fixedly provided on both sides of the shell, and connectors are fixedly provided on both sides of the two conduits;

[0012] Through the above technical solution, the one-way valve is installed through the connecting head.

[0013] Furthermore, both sides of the two connectors are fixedly provided with external threads;

[0014] Through the above technical solution, the one-way valve can be easily installed through the external threads at both ends of the connector.

[0015] Furthermore, a sealing gasket is provided at the top of the housing, and the four fixing bolts all pass through the sealing gasket;

[0016] Through the above technical solution, the bolts pass through the sealing gasket to be connected to the outer shell, which can improve the sealing between the top cover and the outer shell.

[0017] Furthermore, directional arrows are fixedly provided at both the front and rear ends of the housing;

[0018] Through the above technical solution, directional arrows are arranged at both ends of the shell to remind the workers of the direction during installation and avoid confusion in the installation direction.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model proposes a one-way valve structure, in which the right side of the one-way valve is supported by a spring-driven telescopic rod. When water pressure is generated on the left side, the stop plate is pushed open by water, so that water flows to the right side. When the fluid inside the pipeline flows back, the spring drives the stop plate to always block the water inlet end. When water flows back, pressure can also be generated inside the one-way valve to push the stop plate to the left. Both the water flow and the spring can exert pressure on the stop plate, thereby improving the sealing. Compared with the traditional one-way valve, the one-way valve structure has higher stability and better reverse sealing, and can avoid the situation where reverse water seepage causes equipment damage.

[0021] 2. The utility model proposes a one-way valve structure, in which the top cover of the one-way valve is connected to the four threaded holes on the outer shell by four sleeve bolts, and a sealing gasket is arranged between the top cover and the outer shell, so that the sealing can be ensured when the top cover is installed to prevent the internal water from overflowing. The top cover is connected by four threaded holes to achieve quick installation and disassembly, which is convenient for maintenance during long-term use and easy to handle when scale is generated inside. In addition, the structure is relatively simple, easy to maintain, and more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a left side axonometric view of a one-way valve structure proposed by the utility model;

[0023] Figure 2 An exploded diagram of a one-way valve structure proposed by the utility model;

[0024] Figure 3 This is a main cross-sectional view of a one-way valve structure proposed by the utility model;

[0025] Figure 4 This is a right side axial diagram of a one-way valve structure proposed by the utility model.

[0026] Legend:

[0027] 1. Shell; 2. Pointing arrow; 3. Rotating shaft; 4. Sealing gasket; 5. Fixing bolt; 6. Top cover; 7. Conduit; 8. Connector; 9. External thread; 10. Threaded hole; 11. Stop plate; 12. First bracket; 13. Telescopic rod; 14. Spring; 15. Second bracket. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. In the description of this application, it should be noted that the terms used here are only for describing specific implementations, and are not intended to limit the exemplary implementations according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0029] Reference Figure 1-4 , an embodiment provided by the utility model:

[0030] A one-way valve structure comprises a shell 1, a rotating shaft 3 is fixedly provided on one side of the shell 1, a stop plate 11 is rotatably provided on the rotating shaft 3, a first bracket 12 is fixedly provided on one side of the stop plate 11, a second bracket 15 is fixedly provided on the bottom end of the shell 1, a telescopic rod 13 is rotatably provided on the second bracket 15, a spring 14 is provided on the telescopic rod 13, the bottom of the telescopic rod 13 is rotatably connected to the second bracket 15, the stop plate 11 can rotate around the rotating shaft 3, when water pressure is generated on the left side, the stop plate 11 is pushed open to ensure fluidity, the spring 14 on the right side drives the telescopic rod 13 to always support the stop plate 11, when water pressure is generated on the right side, the pressure between the stop plate 11 and the shell 1 can be increased, thereby improving the reverse sealing performance, the structure is relatively simple and can be more stable.

[0031] A top cover 6 is provided on the top of the shell 1, and fixing bolts 5 are sleeved at the four corners of the top cover 6. Threaded holes 10 are opened at the four corners of the top of the shell 1. Four fixing bolts 5 are respectively threadedly connected with the four threaded holes 10. The fixing bolts 5 pass through the top cover 6 and are fixed with the threaded holes 10 to achieve the installation of the one-way valve, which can be easily installed and disassembled quickly, so that the internal one-way valve structure can be easily maintained. Conduits 7 are fixedly provided on both sides of the shell 1, and connectors 8 are fixedly provided on both sides of the two conduits 7. The one-way valve is installed through the connectors 8. External threads 9 are fixedly provided on both sides of the two connectors 8. The one-way valve can be easily installed through the external threads 9 at both ends of the connectors 8. A sealing gasket 4 is provided on the top of the shell 1. Four fixing bolts 5 all penetrate the sealing gasket 4. The bolts pass through the sealing gasket 4 to connect with the shell 1, which can improve the sealing between the top cover 6 and the shell 1. Pointing arrows 2 are fixedly provided at the front and rear ends of the shell 1. The pointing arrows 2 at both ends of the shell 1 can remind the staff of the direction when installing to avoid confusion in the installation direction.

[0032] Working principle: the stop plate 11 can rotate around the rotating shaft 3. When water pressure is generated on the left side, the stop plate 11 is pushed open to ensure fluidity. The spring 14 on the right side drives the telescopic rod 13 to always support the stop plate 11. When water pressure is generated on the right side, the pressure between the stop plate 11 and the housing 1 can be increased, thereby improving the reverse sealing. The structure is relatively simple and can be more stable. The fixing bolt 5 passes through the top cover 6 and is fixed to the threaded hole 10 to install the one-way valve, which can be easily installed and disassembled quickly, so that the internal one-way valve structure can be easily maintained.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A one-way valve structure, comprising a housing (1), characterized in that: A rotating shaft (3) is fixedly arranged on one side of the inner part of the shell (1), a stop plate (11) is rotatably arranged on the rotating shaft (3), a first bracket (12) is fixedly arranged on one side of the stop plate (11), a second bracket (15) is fixedly arranged on the bottom end of the inner part of the shell (1), a telescopic rod (13) is rotatably arranged on the second bracket (15), a spring (14) is arranged on the telescopic rod (13), and the bottom of the telescopic rod (13) is rotatably connected to the second bracket (15).

2. A one-way valve structure according to claim 1, characterized in that: A top cover (6) is arranged on the top of the housing (1), and fixing bolts (5) are sleeved on the four corners of the top cover (6). Threaded holes (10) are opened on the four corners of the top of the housing (1), and the four fixing bolts (5) are respectively threadedly connected to the four threaded holes (10).

3. A one-way valve structure according to claim 1, characterized in that: Both sides of the housing (1) are fixedly provided with conduits (7), and both sides of the two conduits (7) are fixedly provided with connectors (8).

4. A one-way valve structure according to claim 3, characterized in that: External threads (9) are fixedly provided on both sides of the two connectors (8).

5. A one-way valve structure according to claim 2, characterized in that: A sealing gasket (4) is provided at the top of the housing (1), and the four fixing bolts (5) all penetrate the sealing gasket (4).

6. A one-way valve structure according to claim 1, characterized in that: Pointing arrows (2) are fixedly arranged at both the front and rear ends of the housing (1).

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