A three-way piston check valve

Abstract

The utility model belongs to one -way valve technical field especially for a three -way piston type one -way valve, aims at efficiency problem, present and propose following scheme, it includes three -way piston type one -way valve body, the outer surface of three -way piston type one -way valve body is fixedly connected with the mounting block, the connecting end of three -way piston type one -way valve body is equipped with the inner groove of no. The inner surface of the inner groove is fixedly connected with the sealing washer, the outer surface of three -way piston type one -way valve body is fixedly connected with the screw rod of no. Through the setting of no. One -way pipe and no. Two -way pipe, realize the quick installation of no. One -way pipe and no. Two -way pipe, can replace the fittings of no. One -way pipe and no. Two -way pipe, improve the application range, through the setting of no. One connecting ring and no. Two connecting ring, improve the leakproofness between no. One -way pipe and three -way piston type one -way valve body and the leakproofness between no. One -way pipe and no. Two -way pipe.

Description

Technical Field

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

[0002] The three-way piston-type check valve is a fluid control valve that integrates three-way flow direction switching and one-way check function. It achieves flow diversion / merging through piston drive, while a built-in one-way valve core prevents backflow. Its typical structure includes a T / L type valve body, a hydraulic / pneumatic piston assembly, and a hard-soft composite sealing system. It has a nominal diameter of DN40+, a pressure resistance of 1.6-31.5MPa, and a response time of less than 0.2 seconds. It is suitable for hydraulic pressure holding, industrial cooling, and other applications.

[0003] However, the existing technology still has shortcomings. The existing three-way piston check valve is an integrated unit, which makes it inconvenient to replace and repair when the three-way piston check valve is damaged, thus improving the efficiency of maintenance.

[0004] Therefore, we propose a three-way piston-type check valve to solve this problem. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a three-way piston-type one-way valve.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A three-way piston-type check valve includes a three-way piston-type check valve body; a mounting block is fixedly connected to the outer surface of the three-way piston-type check valve body; a first inner groove is provided at the connecting end of the three-way piston-type check valve body; a sealing gasket is fixedly connected to the inner surface of the first inner groove; a first screw is fixedly connected to the outer surface of the three-way piston-type check valve body; a first connecting ring is slidably installed in the first inner groove; a first through pipe is fixedly connected to one outer surface of the first connecting ring; a mounting plate is fixedly connected to one side of the outer circular surface of the first through pipe; a first through hole is provided on the outer surface of the mounting plate; a first through hole is fixedly connected to the other side of the outer circular surface of the first through pipe. Mounting disc; the outer surface of mounting disc No. 1 is provided with through hole No. 2; a nut No. 1 is sleeved on the outer circular surface of screw No. 1; one end of through pipe No. 1 is provided with inner groove No. 2; a connecting ring No. 2 is slidably installed on the inner surface of inner groove No. 2; a through pipe No. 2 is fixedly connected to one outer surface of connecting ring No. 2; mounting disc No. 2 is fixedly connected to the outer circular surface of through pipe No. 2; mounting disc No. 2 is provided with mounting groove on outer surface; through hole No. 3 is provided on the other side of mounting disc; a connecting plate is slidably installed on the inner surface of mounting groove; screw No. 2 is fixedly connected to one outer surface of connecting plate; nut No. 2 is sleeved on the outer circular surface of screw No. 2.

[0007] Preferably, the mounting plate is slidably mounted on the outer surface of the screw through the first through hole; the mounting plate is fixed to one outer surface of the three-way piston-type check valve body by the first nut.

[0008] Preferably, the second screw is slidably installed on the inner surface of the second through hole; the second screw is slidably installed on the inner surface of the third through hole.

[0009] Preferably, the second mounting plate is fixed to the outer surface of the first mounting plate by a second nut; the first nut is located on one side of the mounting plate.

[0010] Preferably, the second nut is located on one side of the first mounting plate.

[0011] In this utility model, a three-way piston-type check valve is provided, comprising a three-way piston-type check valve body, a mounting block, a first screw, a first inner groove, a sealing gasket, a mounting plate, a first through hole, a first nut, a first through pipe, a first mounting plate, a second inner groove, a second through hole, a first connecting ring, a second connecting ring, a second mounting plate, a mounting groove, a third through hole, a second through pipe, a connecting plate, a second screw, and a second nut. When installing the first through pipe, the first connecting ring is pushed into the first inner groove, and the mounting plate is slidably mounted on the outer circumference of the first screw through the first through hole. First, the mounting plate is fixed with nut No. 1 to install pipe No. 1. Then, the mounting plate No. 2 is connected to the outer surface of one side of mounting plate No. 1. The connecting plate is then pushed into the mounting groove. Screw No. 2 is pushed into through holes No. 2 and No. 3. Nut No. 2 is rotated and installed on the outer surface of screw No. 2 to fix mounting plates No. 1 and No. 2. This completes the installation of pipe No. 2, enabling quick installation of pipes No. 1 and No. 2. It also allows for the replacement of accessories for pipes No. 1 and No. 2, thus improving the applicability. In this utility model, a three-way piston-type check valve is provided. The first connecting ring is slidably installed on the inner surface of the first inner groove, which improves the sealing between the first pipe and the three-way piston-type check valve body. The second connecting ring is slidably installed on the inner surface of the second inner groove, which improves the sealing between the first pipe and the second pipe. This utility model has a reasonable structural design, is simple to operate, and has high reliability. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a three-way piston-type check valve proposed in this utility model. Figure 2 This is a front-view three-dimensional split structure diagram of a three-way piston-type check valve proposed in this utility model; Figure 3This is a left-view three-dimensional split structure diagram of a three-way piston-type one-way valve proposed in this utility model.

[0013] In the diagram: 1. Three-way piston check valve body; 2. Mounting block; 3. No. 1 screw; 4. No. 1 inner groove; 5. Sealing gasket; 6. Mounting plate; 7. No. 1 through hole; 8. No. 1 nut; 9. No. 1 through pipe; 10. No. 1 mounting plate; 11. No. 2 inner groove; 12. No. 2 through hole; 13. No. 1 connecting ring; 14. No. 2 connecting ring; 15. No. 2 mounting plate; 16. Mounting groove; 17. No. 3 through hole; 18. No. 2 through pipe; 19. Connecting plate; 20. No. 2 screw; 21. No. 2 nut. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figure 1-3 A three-way piston-type check valve includes a three-way piston-type check valve body 1; a mounting block 2 is fixedly connected to the outer surface of the three-way piston-type check valve body 1; a first inner groove 4 is provided at the connecting end of the three-way piston-type check valve body 1; a sealing gasket 5 is fixedly connected to the inner surface of the first inner groove 4; a first screw 3 is fixedly connected to the outer surface of the three-way piston-type check valve body 1; a first connecting ring 13 is slidably installed in the first inner groove 4; a first through pipe 9 is fixedly connected to one side of the outer surface of the first connecting ring 13; a mounting plate 6 is fixedly connected to one side of the outer circular surface of the first through pipe 9; a first through hole 7 is provided on the outer surface of the mounting plate 6; a first mounting disc 10 is fixedly connected to the other side of the outer circular surface of the first through pipe 9; a first mounting plate 10 is fixedly connected to the first mounting disc 10 ... The outer surface of the mounting plate 10 is provided with a second through hole 12; the outer circular surface of the first screw 3 is sleeved with a first nut 8; one end of the first through pipe 9 is provided with a second inner groove 11; the inner surface of the second inner groove 11 is slidably installed with a second connecting ring 14; one side of the outer surface of the second connecting ring 14 is fixedly connected with a second through pipe 18; the outer circular surface of the second through pipe 18 is fixedly connected with a second mounting plate 15; the outer surface of the second mounting plate 15 is provided with a mounting groove 16; the other side of the second mounting plate 15 is provided with a third through hole 17; the inner surface of the mounting groove 16 is slidably installed with a connecting plate 19; one side of the outer surface of the connecting plate 19 is fixedly connected with a second screw 20; the outer circular surface of the second screw 20 is sleeved with a second nut 21.

[0016] Furthermore, the mounting plate 6 is slidably mounted on the outer surface of the screw 3 through the first through hole 7; the mounting plate 6 is fixed to one side of the outer surface of the three-way piston-type check valve body 1 by the first nut 8.

[0017] Furthermore, the second screw 20 is slidably mounted on the inner surface of the second through hole 12; the second screw 20 is slidably mounted on the inner surface of the third through hole 17.

[0018] Furthermore, the second mounting plate 15 is fixed to the outer surface of the first mounting plate 10 by the second nut 21; the first nut 8 is located on one side of the mounting plate 6.

[0019] Furthermore, nut 21 is located on one side of mounting plate 10.

[0020] In this utility model, during use, when installing the first through pipe 9, the first connecting ring 13 is pushed into the first inner groove 4, and the mounting plate 6 is slidably installed on the outer surface of the first screw 3 through the first through hole 7. Then, the mounting plate 6 is fixed by the first nut 8, thereby installing the first through pipe 9. Then, the second mounting plate 15 is connected to one outer surface of the first mounting plate 10, and the connecting plate 19 is pushed into the mounting groove 16. The second screw 20 is pushed into the second through hole 12 and the third through hole 17, and the second nut 21 is rotated and installed on the outside of the second screw 20. The circular surface is used to fix the first mounting plate 10 and the second mounting plate 15, thereby completing the installation of the second connecting pipe 18. This enables the quick installation of the first connecting pipe 9 and the second connecting pipe 18, and allows for the replacement of accessories for the first connecting pipe 9 and the second connecting pipe 18, thus improving the applicability. The first connecting ring 13 is slidably installed on the inner surface of the first inner groove 4, improving the sealing between the first connecting pipe 9 and the three-way piston-type check valve body 1. The second connecting ring 14 is slidably installed on the inner surface of the second inner groove 11, improving the sealing between the first connecting pipe 9 and the second connecting pipe 18.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A three-way piston-type check valve, characterized in that, The valve includes a three-way piston-type check valve body (1); a mounting block (2) is fixedly connected to the outer surface of the three-way piston-type check valve body (1); the connecting end of the three-way piston-type check valve body (1) is provided with an inner groove (4); a sealing gasket (5) is fixedly connected to the inner surface of the inner groove (4); a screw (3) is fixedly connected to the outer surface of the three-way piston-type check valve body (1); a connecting ring (13) is slidably installed in the inner groove (4); a through pipe (9) is fixedly connected to one side of the outer surface of the connecting ring (13); a mounting plate (6) is fixedly connected to one side of the outer circular surface of the through pipe (9); a through hole (7) is provided on the outer surface of the mounting plate (6); a mounting disc (10) is fixedly connected to the other side of the outer circular surface of the through pipe (9); the outer surface of the mounting disc (10) is... The surface is provided with a second through hole (12); the outer surface of the first screw (3) is fitted with a first nut (8); one end of the first through pipe (9) is provided with a second inner groove (11); the inner surface of the second inner groove (11) is slidably installed with a second connecting ring (14); the outer surface of one side of the second connecting ring (14) is fixedly connected with a second through pipe (18); the outer surface of the second through pipe (18) is fixedly connected with a second mounting plate (15); the outer surface of the second mounting plate (15) is provided with a mounting groove (16); the other side of the second mounting plate (15) is provided with a third through hole (17); the inner surface of the mounting groove (16) is slidably installed with a connecting plate (19); the outer surface of one side of the connecting plate (19) is fixedly connected with a second screw (20); the outer surface of the second screw (20) is fitted with a second nut (21).

2. A three-way piston-type check valve according to claim 1, characterized in that, The mounting plate (6) is slidably mounted on the outer surface of the screw (3) through the first through hole (7); the mounting plate (6) is fixed to one side of the outer surface of the three-way piston-type check valve body (1) by the first nut (8).

3. A three-way piston-type check valve according to claim 1, characterized in that, The second screw (20) is slidably installed on the inner surface of the second through hole (12); the second screw (20) is slidably installed on the inner surface of the third through hole (17).

4. A three-way piston-type check valve according to claim 1, characterized in that, The second mounting plate (15) is fixed to the outer surface of the first mounting plate (10) by the second nut (21); the first nut (8) is located on one side of the mounting plate (6).

5. A three-way piston-type check valve according to claim 1, characterized in that, The second nut (21) is located on one side of the first mounting plate (10).

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