Novel one-way valve

Abstract

The utility model relates to the technical field of fluid control devices, in particular to a novel one-way valve. According to the technical scheme, the valve comprises a valve seat and a valve deck, external threads are arranged on the outer wall of the valve seat, internal threads are arranged on the inner wall of the valve deck and matched with the external threads, the valve deck is arranged on the periphery of the valve seat in a threaded sleeving mode through the internal threads, a water inlet cavity is formed in the top of the valve seat, and a reset spring is fixedly connected to the bottom side of the water inlet cavity; a glass bead is fixedly connected to the top end of the reset spring, an annular groove is formed in the periphery of the glass bead and matched with the reset spring, and a sealing rubber ring is detachably installed on the inner wall of the top of the valve deck. The inner part of the device is convenient to clean and replace, the use cost is reduced, and the glass beads are prevented from rotating when encountering water flow, so that the problems that the outer surfaces of the glass beads are abraded with the reset springs due to rotation, gaps are generated at the joints of the glass beads and the sealing rubber rings, and the sealing performance is relatively poor are solved, and the service life of the device is prolonged. And the service life of the device is prolonged.

Description

Technical Field

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

[0002] One-way valve is also called non-return valve or check valve. It is used in hydraulic system to prevent oil flow from flowing in reverse direction, or in pneumatic system to prevent compressed air from flowing in reverse direction. The function of one-way valve is to allow medium to flow in one direction only, and prevent flow in the opposite direction. Usually, this kind of valve is self-opening. Under the pressure of fluid flowing in one direction, the valve disc opens; when the fluid flows in the opposite direction, the fluid pressure and the self-reclosing valve disc act on the valve seat, thereby cutting off the flow.

[0003] In the prior art, the patent number is: CN217584059U, which relates to a new type of one-way valve, including a valve body, an input hole and an output hole, a mounting cavity is arranged in the valve body, one end of the mounting cavity is connected with the input hole, and the other end is connected with the output hole, the inner diameter of the mounting cavity is larger than the apertures of the input hole and the output hole, a return spring is arranged in the mounting cavity, one end of the return spring is in contact with the end face of the mounting cavity close to the output hole, a poppet is arranged at the end of the return spring close to the input hole, the side wall of the poppet is in contact with the inner side wall of the mounting cavity, a sealing member is arranged on the side of the poppet away from the return spring, the poppet contacts the sealing member, the return spring squeezes the poppet so that the sealing member is pressed against the end face of the mounting cavity close to the input hole, the sealing member covers and closes the connection port between the input hole and the mounting cavity, and a gap is left between the side wall of the sealing member and the inner side wall of the mounting cavity. The one-way valve proposed by the utility model has the advantages of both meeting the low opening pressure and ensuring the closing speed.

[0004] Although the one-way valve can achieve the effect of a one-way switch by setting parts such as seals and return springs, it still has the following shortcomings in practical applications: after the one-way valve is used for a long time, it is very difficult and costly to clean the internal parts. Utility Model Content

[0005] The purpose of the utility model is to propose a novel one-way valve in view of the problems existing in the background technology.

[0006] To achieve this object, the utility model adopts the following technical scheme: a new type of one-way valve, including a valve seat and a valve cover, the outer wall of the valve seat is provided with an external thread, the inner wall of the valve cover is provided with an internal thread, and the internal thread and the external thread match, the valve cover is arranged on the periphery of the valve seat through the internal thread, the top of the valve seat is provided with a water inlet cavity, the bottom side of the water inlet cavity is fixedly connected with a reset spring, the top of the reset spring is fixedly connected with a glass bead, the periphery of the glass bead is provided with an annular groove, and the annular groove is adapted to the reset spring, and a sealing rubber ring is detachably installed on the top inner wall of the valve cover, and the sealing rubber ring abuts against the glass bead.

[0007] Preferably, a water inlet pipe is fixedly connected to the top of the valve cover.

[0008] Preferably, a first limiting hole is formed on the top wall of the valve cover and is connected to the water inlet pipe.

[0009] Preferably, a water outlet pipe is fixedly connected to the bottom of the valve seat.

[0010] Preferably, a second limiting hole is opened on the bottom side of the water inlet cavity, the diameter of the second limiting hole is smaller than the diameter of the water inlet cavity, and the second limiting hole is connected to the water outlet pipe.

[0011] Preferably, a directional arrow is provided on the outer wall of the valve cover.

[0012] The beneficial effects of the utility model are as follows: when installing the device, the valve cover is first threadedly sleeved on the outer wall of the valve seat, and the valve cover is continuously rotated until the top inner wall of the valve cover abuts against the top of the valve seat, and at the same time, the glass bead fixedly connected to the top of the return spring abuts against the sealing rubber ring on the top inner wall of the valve cover. When the valve seat and the parts inside the valve cover need to be cleaned or replaced, it is only necessary to rotate the valve cover to separate it from the valve seat, which is convenient for cleaning and replacement of the inside of the device and reduces the cost of use; when water flows through the water inlet pipe and the first limit hole to enter the water inlet cavity, it will impact the glass beads, and the glass beads are installed in cooperation with the return spring through the annular groove opened on the periphery to prevent the glass beads from rotating when encountering the water flow, thereby avoiding the outer surface of the glass beads from being worn against the return spring due to rotation and causing gaps to form at the junction of the glass beads and the sealing rubber ring, resulting in poor sealing, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view schematic diagram of the overall structure of a novel one-way valve embodiment of the utility model;

[0014] Figure 2 It is an exploded schematic diagram of the overall structure of a novel one-way valve embodiment of the utility model;

[0015] Figure 3 It is a front cutaway schematic diagram of the overall structure of a novel one-way valve embodiment of the utility model.

[0016] Figure numerals: 1. valve seat; 2. valve cover; 3. external thread; 4. internal thread; 5. water inlet chamber; 6. return spring; 7. glass bead; 8. annular groove; 9. sealing rubber ring; 10. first limiting hole; 11. second limiting hole; 12. water outlet pipe; 13. water inlet pipe; 14. pointing arrow. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0018] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0020] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0021] Embodiment 1

[0022] like Figure 1-3As shown, the utility model proposes a new type of one-way valve, including a valve seat 1 and a valve cover 2, the outer wall of the valve seat 1 is provided with an external thread 3, the inner wall of the valve cover 2 is provided with an internal thread 4, and the internal thread 4 and the external thread 3 match, the valve cover 2 is threadedly sleeved on the periphery of the valve seat 1 through the internal thread 4, the top of the valve seat 1 is provided with a water inlet cavity 5, the bottom side of the water inlet cavity 5 is fixedly connected with a return spring 6, the top of the return spring 6 is fixedly connected with a glass bead 7, the periphery of the glass bead 7 is provided with an annular groove 8, and the annular groove 8 is adapted to the return spring 6, and the top inner wall of the valve cover 2 is detachably installed with a sealing rubber ring 9, and the sealing rubber ring 9 abuts against the glass bead 7.

[0023] In this embodiment: a water inlet pipe 13 is fixedly connected to the top of the valve cover 2. Through this arrangement, the water inlet pipe 13 can be connected to an external water source; a first limiting hole 10 is opened on the top wall of the valve cover 2 and is connected to the water inlet pipe 13. Through this arrangement, the water inlet pipe 13 can allow the external water source connected to it to enter the valve cover 2 through the first limiting hole 10.

[0024] Embodiment 2

[0025] like Figure 1-3 As shown, a new type of one-way valve proposed by the utility model, compared with the first embodiment, the bottom of the valve seat 1 is fixedly connected with a water outlet pipe 12, through this arrangement, water can be discharged through the water outlet pipe 12; a second limiting hole 11 is provided on the bottom side of the water inlet chamber 5, the diameter of the second limiting hole 11 is smaller than the diameter of the water inlet chamber 5, and is connected with the water outlet pipe 12, through this arrangement, the water in the water inlet chamber 5 enters the water outlet pipe 12 through the second limiting hole 11; the outer wall of the valve cover 2 is provided with a directional arrow 14, through this arrangement, it is convenient for the user to understand the direction of the water flow.

[0026] Working principle: When installing the device, first thread the valve cover 2 onto the outer wall of the valve seat 1, and continuously rotate the valve cover 2 until the top inner wall of the valve cover 2 abuts against the top of the valve seat 1, and at the same time, the glass bead 7 fixedly connected to the top of the reset spring 6 abuts against the sealing rubber ring 9 on the top inner wall of the valve cover 2. When water flows through the water inlet pipe 13 and the first limiting hole 10 to enter the water inlet chamber 5, it will impact the glass bead 7. The glass bead 7 is installed in cooperation with the reset spring 6 through the annular groove 8 opened on the periphery to prevent the glass bead 7 from rotating when encountering the water flow, thereby avoiding the outer surface of the glass bead 7 from being worn against the reset spring 6 due to rotation, and causing a gap to form at the junction of the glass bead 7 and the sealing rubber ring 9, resulting in poor sealing.

[0027] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A novel one-way valve, comprising a valve seat (1) and a valve cover (2), characterized in that: The outer wall of the valve seat (1) is provided with an external thread (3), the inner wall of the valve cover (2) is provided with an internal thread (4), and the internal thread (4) and the external thread (3) match each other. The valve cover (2) is threadedly sleeved on the periphery of the valve seat (1) through the internal thread (4). The top of the valve seat (1) is provided with a water inlet chamber (5), the bottom side of the water inlet chamber (5) is fixedly connected with a return spring (6), the top end of the return spring (6) is fixedly connected with a glass bead (7), the periphery of the glass bead (7) is provided with an annular groove (8), and the annular groove (8) is adapted to the return spring (6). A sealing rubber ring (9) is detachably installed on the inner wall of the top of the valve cover (2), and the sealing rubber ring (9) is in contact with the glass bead (7).

2. A novel one-way valve according to claim 1, characterized in that: The top of the valve cover (2) is fixedly connected with a water inlet pipe (13).

3. A novel one-way valve according to claim 2, characterized in that: The top wall of the valve cover (2) is provided with a first limiting hole (10) which is in communication with the water inlet pipe (13).

4. A novel one-way valve according to claim 1, characterized in that: The bottom of the valve seat (1) is fixedly connected with a water outlet pipe (12).

5. A novel one-way valve according to claim 4, characterized in that: A second limiting hole (11) is provided on the bottom side of the water inlet chamber (5); the diameter of the second limiting hole (11) is smaller than the diameter of the water inlet chamber (5), and the second limiting hole (11) is connected to the water outlet pipe (12).

6. A novel one-way valve according to claim 1, characterized in that: The outer wall of the valve cover (2) is provided with a directional arrow (14).

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