Automatic opening and closing valve

Abstract

The utility model relates to the technical field of valves, and provides an automatic opening and closing valve which comprises a main pipeline provided with a first liquid inlet and a first liquid outlet. The first sealing piece is arranged in the main pipeline, the first sealing piece abuts against the inner wall of the main pipeline, and the first sealing piece divides the main pipeline into a first cavity and a second cavity; one end of the elastic piece is arranged on the other side of the first sealing piece, the other end of the elastic piece abuts against the main pipeline, and the elastic piece provides elastic force for the first sealing piece to be away from the first liquid outlet; the telescopic piece is arranged on the main pipeline; the extending end of the telescopic piece abuts against the first sealing piece, the telescopic piece extends to drive the first sealing piece to be disengaged from the main pipeline, and the first cavity communicates with the second cavity. By means of the technical scheme, the problems that in the prior art, a manual valve is low in efficiency and insufficient in safety are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and in particular to a self-opening and closing valve. Background Art

[0002] In many industrial processes, such as chemical, oil, and gas industries, there are extremely high requirements for the safety of pipeline systems. Traditional manual valves require manual operation, which is not only inefficient, but may not be closed in time in an emergency, resulting in increased risk of accidents.

[0003] With the rapid development of automation technology, all walks of life are pursuing automation and intelligence in the production process. The emergence of self-opening and closing valves has become a key task in pipeline automation control. Utility Model Content

[0004] The utility model provides a self-opening and closing valve, which solves the problem of low efficiency and insufficient safety of manual valves in the related art.

[0005] The technical solution of the utility model is as follows:

[0006] A self-opening and closing valve, comprising:

[0007] A main pipeline, wherein the main pipeline has a first liquid inlet and a first liquid outlet;

[0008] A first sealing member, wherein the first sealing member is disposed in the main pipe, the first sealing member abuts against an inner wall of the main pipe, and the first sealing member divides the main pipe into a first cavity and a second cavity;

[0009] an elastic member, one end of which is arranged at the other side of the first sealing member, the other end of which is in contact with the main pipeline, and the elastic member provides elastic force to keep the first sealing member away from the first liquid outlet;

[0010] A telescopic member is provided on the main pipe. When the telescopic member is extended, it drives the first sealing member to release the abutment with the main pipe, and the first cavity is communicated with the second cavity.

[0011] Optionally, the main pipeline 1 comprises:

[0012] a first pipe, wherein one end of the first pipe abuts against the first sealing member, the other end of the first pipe is the first liquid outlet, and the interior of the first pipe is the first cavity;

[0013] A second pipe, one end of the second pipe is the first liquid inlet, the other end of the second pipe is in contact with the first sealing member, the interior of the second pipe is the second cavity, and the telescopic member is arranged on the main pipe through the second pipe.

[0014] Optionally, it also includes:

[0015] A push rod, one end of which is arranged at the extended end of the telescopic member, and the telescopic member abuts against the first sealing member through the push rod.

[0016] Optionally, one side of the first sealing member has a first groove, and the push rod abuts against the first groove.

[0017] Optionally, it also includes:

[0018] A connecting rod, through which the top rod is arranged at the extended end of the telescopic member;

[0019] A second sealing member is provided on the connecting rod, and a third cavity is formed between one side of the second sealing member and the telescopic member.

[0020] Optionally, it also includes:

[0021] a first support frame, wherein the first support frame is disposed in the main pipeline, and the elastic member abuts against the main pipeline through the first support frame;

[0022] A guide rod, wherein the guide rod is arranged in the elastic member, one end of the guide rod is arranged on a side of the first sealing member away from the first groove, and the other end of the guide rod is slidably arranged on the first support frame.

[0023] Optionally, it also includes:

[0024] A second support frame is disposed in the first pipeline.

[0025] Optionally, it also includes:

[0026] The third support frame is arranged in the main pipeline, and the push rod is slidably arranged in the center of the third support frame.

[0027] Optionally, the first sealing member is hemispherical, and the first groove is located on one side of the spherical surface of the first sealing member.

[0028] The working principle and beneficial effects of the utility model are:

[0029] 1. In the utility model, the main pipeline serves as the main body of the valve, and is provided with a first liquid inlet and a first liquid outlet for the input and output of the fluid. The interior of the main pipeline is divided into a first cavity and a second cavity by a first seal. The elastic member is installed on one side of the first seal, with one end fixed in the main pipeline and the other end in contact with the first seal, to ensure that when there is no external force, the first seal is in close contact with the main pipeline to isolate the fluid flow between the first cavity and the second cavity. The telescopic member is installed on the main pipeline and has a telescopic function. When the telescopic member is extended, it can overcome the elastic force of the elastic member to push the first seal, thereby connecting the first cavity with the second cavity. Conversely, when the telescopic member retracts, the elastic member resets the first seal and closes the fluid channel.

[0030] Specifically, in the absence of external force, the elastic force of the elastic member causes the first sealing member to fit tightly against the inner wall of the main pipeline. At this time, the valve is in a closed state and the fluid cannot pass through. When the valve needs to be opened, the external control signal activates the telescopic member, which pushes the first sealing member after extending, so that the first cavity is connected to the second cavity. The fluid flows in from the first liquid inlet under the action of the pressure difference and is output from the first liquid outlet through the second cavity. When the valve is closed, the control signal is released, the telescopic member retracts under the action of the elastic member, the first sealing member resets the seal, and the fluid flow is stopped. This self-opening and closing valve is exquisitely designed. It can not only accurately control the flow of liquid in the valve, but also when the internal pressure of the first cavity is too high, the telescopic member actively extends to drive the first sealing member to move, forcing the first cavity to be connected to the second cavity, and realizing the pressure relief operation of the first cavity. This embodiment realizes automatic control of the fluid through a simple and effective mechanical structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0032] Figure 1 It is a schematic diagram of the structure of the utility model;

[0033] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0034] Figure 3 It is a partially enlarged schematic diagram of the structure of the utility model;

[0035] Figure 4 It is a partially enlarged schematic diagram of another structure of the utility model;

[0036] In the figure: 1, main pipeline, 101, first liquid inlet, 102, first liquid outlet, 2, first sealing member, 103, first cavity, 104, second cavity, 3, elastic member, 4, telescopic member, 105, first pipeline, 106, second pipeline, 5, push rod, 201, first groove, 6, connecting rod, 7, second sealing member, 107, third cavity, 8, first support frame, 9, guide rod, 10, second support frame, 11, third support frame. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0038] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0039] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] Reference Figure 1~Figure 4, which is the first embodiment of the utility model, proposes a self-opening and closing valve, including a main pipeline 1, the main pipeline 1 having a first liquid inlet 101 and a first liquid outlet 102; a first sealing member 2 is arranged in the main pipeline 1, the first sealing member 2 abuts against the inner wall of the main pipeline 1, and the first sealing member 2 divides the main pipeline 1 into a first cavity 103 and a second cavity 104; one end of an elastic member 3 is arranged on the other side of the first sealing member 2, and the other end of the elastic member 3 abuts against the main pipeline 1, and the elastic member 3 provides elastic force for the first sealing member 2 to move away from the first liquid outlet 102; a telescopic member 4 is arranged on the main pipeline 1, and after the telescopic member 4 is extended, it drives the first sealing member 2 to release the abutment with the main pipeline 1, and the first cavity 103 is connected with the second cavity 104.

[0042] In this embodiment, the main pipeline 1 is used as the main body of the valve, and is provided with a first liquid inlet 101 and a first liquid outlet 102 for the input and output of the fluid. The interior of the main pipeline 1 is divided into a first cavity 103 and a second cavity 104 by a first sealing member 2. The elastic member 3 is installed on one side of the first sealing member 2, with one end fixed in the main pipeline 1 and the other end in contact with the first sealing member 2, to ensure that when there is no external force, the first sealing member 2 is in close contact with the main pipeline 1, isolating the fluid flow between the first cavity 103 and the second cavity 104. The telescopic member 4 is installed on the main pipeline 1 and has a telescopic function. When the telescopic member 4 is extended, it can overcome the elastic force of the elastic member 3 to push the first sealing member 2, so that the first cavity 103 is connected with the second cavity 104. On the contrary, when the telescopic member 4 is retracted, the elastic member 3 provides elastic force to reset the first sealing member 2 and close the fluid channel.

[0043] Specifically, in the absence of external force, the elastic force of the elastic member 3 makes the first sealing member 2 fit closely to the inner wall of the main pipeline 1, and the valve is in a closed state at this time, and the fluid cannot pass through. When the valve needs to be opened, the external control signal activates the telescopic member 4, and the telescopic member 4 stretches and pushes the first sealing member 2, so that the first cavity 103 is connected with the second cavity 104, and the fluid flows in from the first liquid inlet 101 under the action of the pressure difference, and is output from the first liquid outlet 102 through the second cavity 104. When the valve is closed, the control signal is released, the telescopic member 4 retracts, and the first sealing member 2 is reset to restore the sealing state under the elastic force provided by the elastic member 3, and the fluid flow is stopped. This self-opening and closing valve is exquisitely designed, not only can accurately control the flow of liquid in the valve, but also when the internal pressure of the first cavity 103 is too large, the telescopic member 4 actively extends to drive the first sealing member 2 to move, forcing the first cavity 103 to communicate with the second cavity 104, and completing the pressure relief operation of the first cavity 103. This embodiment completes the self-opening and closing effect of the valve through a simple structure.

[0044] Furthermore, the main pipeline 11 includes a first pipeline 105, one end of the first pipeline 105 is abutted against the first sealing member 2, the other end of the first pipeline 105 is a first liquid outlet 102, and the interior of the first pipeline 105 is a first cavity 103; one end of the second pipeline 106 is a first liquid inlet 101, the other end of the second pipeline 106 is abutted against the first sealing member 2, the interior of the second pipeline 106 is a second cavity 104, and the telescopic member 4 is arranged on the main pipeline 1 through the second pipeline 106.

[0045] In this embodiment, the main pipeline 1 includes a first pipeline 105 and a second pipeline 106. One end of the first pipeline 105 contacts the first sealing member 2 to form a first cavity 103, and the other end of the first pipeline 105 serves as a first liquid outlet 102. One end of the second pipeline 106 is a first liquid inlet 101, and the other end is also against the first sealing member 2, and the interior of the second pipeline 106 is a second cavity 104. The telescopic member 4 is installed on the second pipeline 106. This design clarifies the path of the fluid entering the second cavity 104 from the first liquid inlet 101, and then the first sealing member 2 controls whether to flow into the first cavity 103 and finally discharge from the first liquid outlet 102, thereby improving the logic of fluid control and the rationality of the structure.

[0046] Furthermore, it also includes a push rod 5 , one end of which is arranged at the extended end of the telescopic member 4 , and the telescopic member 4 abuts against the first sealing member 2 through the push rod 5 .

[0047] In this embodiment, in order to more accurately control the action of the first sealing member 2, a push rod 5 is added. One end of the push rod 5 is fixed to the extended end of the telescopic member 4, and the extension action of the telescopic member 4 is transmitted to the first sealing member 2 through the push rod 5, so as to achieve accurate control of the position of the first sealing member 2. This design enhances the accuracy and response speed of the valve opening and closing action.

[0048] Furthermore, a first groove 201 is formed on one side of the first sealing member 2 , and the ejector rod 5 abuts against the first groove 201 .

[0049] In this embodiment, a first groove 201 is designed on a specific side of the first sealing member 2, and the end of the push rod 5 is precisely connected to the first groove 201. Such a design ensures that the push of the push rod 5 on the first sealing member 2 is more stable and accurately positioned, reduces leakage problems that may be caused by sliding or misalignment of the contact surface, and enhances the sealing performance and service life of the valve.

[0050] Furthermore, it also includes a connecting rod 6, and the top rod 5 is arranged at the extended end of the telescopic member 4 through the connecting rod 6; the second sealing member 7 is arranged on the connecting rod 6, and a third cavity 107 is formed between one side of the second sealing member 7 and the telescopic member 4.

[0051] In this embodiment, a connecting rod 6 and a second sealing member 7 are added. The connecting rod 6 is used to connect the top rod 5 and the extended end of the telescopic member 4, and the second sealing member 7 is arranged on the connecting rod 6 to form a third cavity 107 with the telescopic member 4. The second sealing member 7 is used to prevent liquid from contacting the telescopic member 4 and corroding the telescopic member 4, thereby improving the adaptability and service life of the valve.

[0052] Furthermore, it also includes a first support frame 8, which is arranged in the main pipeline 1, and the elastic member 3 is abutted against the main pipeline 1 through the first support frame 8; a guide rod 9 is arranged in the elastic member 3, one end of the guide rod 9 is arranged on the side of the first sealing member 2 away from the first groove 201, and the other end of the guide rod 9 is slidably arranged on the first support frame 8.

[0053] In this embodiment, in order to better support the operation of the elastic member 3, a guide rod 9 and a first support frame 8 are introduced in this embodiment. The setting of the guide rod 9 ensures that when the telescopic member 4 drives the first sealing member 2 to move, the movement trajectory of the first sealing member 2 is stable and controllable, thereby reducing unnecessary friction and wear and improving the service life of the valve. The first support frame 8 is installed inside the main pipeline 1 to provide a stable support point for the elastic member 3 and also limit the sliding trajectory of the guide rod 9.

[0054] Furthermore, it also includes a second support frame 10 , which is disposed in the first pipeline 105 .

[0055] In this embodiment, the second support frame 10 is added to enhance the structural stability of the first pipeline 105, especially to ensure that the pipeline does not deform when subjected to fluid pressure and valve opening and closing actions, thereby further consolidating the firmness and safety of the entire valve system.

[0056] Furthermore, it also includes a third support frame 11, which is arranged in the main pipeline 1, and the top rod 5 is slidably arranged in the center of the third support frame 11.

[0057] In this embodiment, the third support frame 11 is used to provide a stable sliding path for the push rod 5, ensuring that the push rod 5 can move smoothly and accurately under the drive of the telescopic member 4 to avoid deviation or jamming, which is beneficial to improving the operating efficiency of the valve and the reliability of long-term use.

[0058] Furthermore, the first sealing member 2 is hemispherical, and the first groove 201 is located on one side of the spherical surface of the first sealing member 2 .

[0059] In this embodiment, the first sealing member 2 adopts a hemispherical design. This shape selection is conducive to forming a more uniform sealing contact surface, improving the sealing effect and reducing the risk of leakage. The hemispherical design can also optimize the pressure distribution when the fluid passes through, reduce the fluid resistance, make the valve smoother in the open state, and provide better sealing performance in the closed state. The first groove 201 is set on the spherical side of the sealing member, so that the contact between the push rod 5 and the sealing member is stable and the positioning is accurate.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A self-opening and closing valve, It is characterized in that include: A main pipeline (1), the main pipeline (1) having a first liquid inlet (101) and a first liquid outlet (102); A first sealing member (2), the first sealing member (2) being arranged in the main pipe (1), the first sealing member (2) being in contact with an inner wall of the main pipe (1), the first sealing member (2) dividing the main pipe (1) into a first cavity (103) and a second cavity (104); an elastic member (3), one end of the elastic member (3) being arranged on the other side of the first sealing member (2), the other end of the elastic member (3) being in contact with the main pipeline (1), and the elastic member (3) providing an elastic force for the first sealing member (2) to move away from the first liquid outlet (102); A telescopic member (4), the telescopic member (4) being arranged on the main pipe (1), and the telescopic member (4) driving the first sealing member (2) to release the abutment with the main pipe (1) after being extended, so that the first cavity (103) is communicated with the second cavity (104).

2. A self-opening and closing valve according to claim 1, It is characterized in that The main pipeline (1) 1 comprises: a first pipe (105), one end of the first pipe (105) being in contact with the first sealing member (2), the other end of the first pipe (105) being the first liquid outlet (102), and the interior of the first pipe (105) being the first cavity (103); a second pipe (106), one end of the second pipe (106) being the first liquid inlet (101), the other end of the second pipe (106) being in contact with the first sealing member (2), the interior of the second pipe (106) being the second cavity (104), and the telescopic member (4) being arranged on the main pipe (1) via the second pipe (106).

3. A self-opening and closing valve according to claim 2, It is characterized in that Also includes: A push rod (5), one end of the push rod (5) being arranged at the extended end of the telescopic member (4), and the telescopic member (4) being in contact with the first sealing member (2) via the push rod (5).

4. A self-opening and closing valve according to claim 3, It is characterized in that One side of the first sealing member (2) has a first groove (201), and the push rod (5) abuts against the first groove (201).

5. A self-opening and closing valve according to claim 4, It is characterized in that Also includes: A connecting rod (6), wherein the top rod (5) is arranged at the extended end of the telescopic member (4) via the connecting rod (6); A second sealing member (7), wherein the second sealing member (7) is arranged on the connecting rod (6), and a third cavity (107) is formed between one side of the second sealing member (7) and the telescopic member (4).

6. A self-opening and closing valve according to claim 5, It is characterized in that Also includes: a first support frame (8), the first support frame (8) being arranged in the main pipeline (1), the elastic member (3) being in contact with the main pipeline (1) via the first support frame (8); A guide rod (9), the guide rod (9) being arranged in the elastic member (3), one end of the guide rod (9) being arranged on a side of the first sealing member (2) away from the first groove (201), and the other end of the guide rod (9) being slidably arranged on the first support frame (8).

7. A self-opening and closing valve according to claim 6, It is characterized in that Also includes: A second support frame (10), wherein the second support frame (10) is arranged in the first pipeline (105).

8. A self-opening and closing valve according to claim 3, It is characterized in that Also includes: A third support frame (11), the third support frame (11) is arranged in the main pipeline (1), and the push rod (5) is slidably arranged in the center of the third support frame (11).

9. A self-opening and closing valve according to claim 4, It is characterized in that The first sealing component (2) is hemispherical, and the first groove (201) is located on one side of the spherical surface of the first sealing component (2).

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