Butterfly type hydraulic control check valve

Abstract

The utility model discloses a butterfly formula liquid control check valve relates to valve technical field, including valve body, the left and right sides of valve body all are equipped with fixed ring, the left and right sides of valve body all are equipped with pipeline, and the installation component is installed between left and right pipeline and valve body, and the installation component includes two semicircle ring. The utility model discloses through installing, first aligning one side pipeline with valve body, opening two semicircle ring, let semicircle ring, arc slot card into ring body and valve body fixed ring outer surface. After two semicircle ring close, overturning mounting panel, drive two arc plate no.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a butterfly-type hydraulic check valve. Background Technology

[0002] A check valve is a valve whose opening and closing element is a circular valve disc, which relies on its own weight and the pressure of the medium to actuate and prevent backflow of the medium. Check valves belong to the category of automatic valves and are also known as non-return valves, one-way valves, backflow valves, or back pressure valves. Their main function is to prevent liquid leakage. A butterfly check valve, on the other hand, relies on the flow of the medium itself to automatically open and close the valve disc, preventing backflow. This type of valve typically operates automatically. Under the pressure of fluid flowing in one direction, the valve disc automatically opens the valve. When fluid flowing in the opposite direction comes into contact with the valve, the valve disc closes the valve under the reaction force, thus stopping the flow of liquid.

[0003] The existing technology has the following problems: In current butterfly-type hydraulic check valves, the pipes on both sides are connected to the valve via flanges and secured with multiple bolts. During installation, each bolt must be tightened individually using tools. This not only makes the valve installation process cumbersome and laborious but also hinders ease of installation and rapid valve fixation, undoubtedly increasing the difficulty and complexity for workers.

[0004] Therefore, we need a butterfly-type hydraulic check valve to solve the above problems. Utility Model Content

[0005] This invention provides a butterfly-type hydraulic check valve to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A butterfly-type hydraulic check valve includes a valve body. Fixing rings are installed on both the left and right sides of the valve body. Pipes are provided on both the left and right sides of the valve body. Installation assemblies are installed between the pipes and the valve body on both sides. Each installation assembly includes two semi-circular rings, which are movably connected at their rear sides and mirror images of each other. An arc-shaped groove is formed on the inner side of each semi-circular ring. Two inclined surfaces are mirror images of each other on the left and right sides of the arc-shaped groove. A connecting rod is fixedly connected to the front of the outer surface of the lower semi-circular ring. Two arc-shaped plates are slidably connected through the outer surface of the connecting rod. Springs are fixedly connected to the upper and lower opposite surfaces of the two arc-shaped plates. Arc-shaped plates are fixedly connected to the left and right sides of the front of the outer surface of the upper semi-circular ring.

[0007] A further improvement of this utility model is that positioning holes are provided on both the upper and lower surfaces of the two arc-shaped plates on the left and right sides.

[0008] A further improvement of this utility model is that: positioning posts are fixedly connected to the upper and lower sides of the arc-shaped plates on the side away from the spring, and the outer surface of the positioning posts is inserted into the interior of the positioning holes.

[0009] A further improvement of the present invention is that: an installation plate is provided on the end face of the left and right arc-shaped plates, and a groove is provided on the side of the installation plate near the arc-shaped plates. Anti-detachment grooves are provided on the front and back sides of the inner wall of the groove. Two cross-shaped sliders are slidably connected inside the groove and the anti-detachment grooves. The surfaces of the two cross-shaped sliders are respectively fixedly connected to the surface of the arc-shaped plates.

[0010] A further improvement of this utility model is that: a ring is fixedly connected to one end of the left and right pipes near the valve body, and an annular groove is formed on the outer surface of the ring near the valve body. A rubber ring is fitted inside the annular groove, and the length of the rubber ring is greater than the length of the annular groove.

[0011] A further improvement of this utility model is that the rubber ring is in a contracted state.

[0012] A further improvement of this utility model is that the outer surfaces of the left and right rings and the outer surfaces of the fixed rings in the valve body correspond to the inner sides of the upper and lower arc grooves.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: This utility model provides a butterfly-type hydraulic check valve. During installation, first align the valve body with one side of the pipeline, then open the two semi-circular rings, allowing the semi-circular rings and arc-shaped grooves to engage with the outer surface of the fixing ring within the valve body. After the two semi-circular rings close together, flip the mounting plate, causing the two arc-shaped plates to fit against the outer surface of the upper semi-circular ring. Next, release the two arc-shaped plates; under the action of springs, the arc-shaped plates move automatically, causing the positioning pin to engage with the positioning hole for limitation. The mounting plate design allows the two arc-shaped plates to flip synchronously. Through the mutual cooperation of the structures, the valve body and pipeline can be quickly installed and fixed, simplifying the operation process and making it easier for workers to operate.

[0014] This invention provides a butterfly-type hydraulic check valve. During the closing and installation process, the inclined surfaces on both sides are squeezed against the ring body and the fixed ring in the valve body, while pressure is applied to the rubber ring to cause it to contract. After being squeezed and contracted, the rubber ring achieves a tight fit with the ring body and the fixed ring, thus providing a good sealing effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is an exploded structural diagram of the valve body, pipeline, and installation components of this utility model; Figure 3 A schematic diagram of the front structure of the upper and lower semicircular rings in the mounting assembly of this utility model. Figure 4 This is an enlarged structural diagram of point A in this utility model; Figure 5 This is an exploded structural diagram of the ring and rubber ring in the pipe of this utility model; Figure 6 This is a schematic diagram of the rear structure of the upper and lower semicircular rings in the mounting assembly of this utility model.

[0016] In the diagram: 1. Valve body; 2. Pipeline; 21. Ring body; 22. Annular groove; 23. Rubber ring; 3. Mounting assembly; 31. Semicircular ring; 32. Arc groove; 33. Inclined surface; 34. Connecting rod; 35. Arc plate one; 36. Spring; 37. Positioning pin; 38. Arc plate two; 39. Positioning hole; 301. Mounting plate; 302. Cross-shaped slider; 303. Slide groove; 304. Anti-disengagement groove. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Example 1: As Figures 1 to 6 As shown, this utility model provides a butterfly hydraulic control check valve, including a valve body 1. The valve body 1 is the core structure of the check valve, and control components such as a butterfly valve core are installed inside. It can automatically open or close according to the fluid pressure to prevent the fluid from flowing backward. The fixing rings installed on the left and right sides of the valve body 1 provide a docking reference for the connection with the pipeline 2, ensuring that the mounting component 3 can accurately wrap the fixing ring in the valve body 1 and the connection part of the pipeline 2. The pipes 2 on the left and right sides of the valve body 1 are channels for fluid transportation. The mounting components 3 installed between the left and right pipes 2 and the valve body 1 are used to firmly connect the pipes 2 and the valve body 1. The two semi-circular rings 31 in the mounting components 3 are mirrored and movably connected at the rear. They can be opened and closed around the connection point, making it easy to fit the fixing ring in the valve body 1 and the outer surface of the ring body 21 of the pipe 2. When the two semi-circular rings 31 are closed, they form a complete ring structure, which wraps around the connection part from the outside. The relative displacement between the pipes 2 and the valve body 1 is restricted by the structural constraint, ensuring a stable connection. Example 2: Figures 1 to 6As shown, the arc-shaped grooves 32 opened on the inner side of the two semi-circular rings 31 correspond to the outer surface of the ring body 21 of the left and right pipes 2 and the outer surface of the fixed ring in the valve body 1. The arc-shaped structure of the arc-shaped grooves 32 fits the outer surface of the ring body 21 and the fixed ring, which facilitates the internal locking. The two inclined surfaces 33 set on the left and right sides of the arc-shaped grooves 32 can play a guiding role during the closing process of the semi-circular rings 31, which facilitates the compression of the ring body 21 or the fixed ring in the valve body 1, so that the rubber ring 23 shrinks and has a sealing state. A connecting rod 34, fixedly connected to the front of the lower semicircular ring 31, provides sliding support for the two arc-shaped plates 35. The outer surface of the connecting rod 34 passes through the two slidably connected arc-shaped plates 35 and can slide left and right along the connecting rod. By adjusting the position of the two arc-shaped plates 35, they can be fitted to the arc-shaped plate 38 of the upper semicircular ring 31, thus fixing the two semicircular rings 31. Springs 36, fixedly connected above and below the two arc-shaped plates 35, are in a tightened state, providing a tightening force to ensure that the arc-shaped plates 35 can fit tightly against the arc-shaped plate 38. The upper semicircular ring 31 is fixedly connected to the left and right sides of the front of the arc plate 38. The positioning holes 39 on the opposite side of the arc plate 35 are fixedly connected to the positioning pins 37 on the side away from the spring 36. When the two semicircular rings 31 are closed, the arc plate 35 is flipped to the appropriate position and then the two arc plates 35 are released. Under the elastic action of the spring 36, the arc plate 35 is pushed to insert the positioning pins 37 into the positioning holes 39, which can fix the two semicircular rings 31 and prevent the semicircular rings 31 from opening, thus ensuring the stable connection between the valve body 1 and the pipeline 2. The mounting plate 301 is provided on the end face of the left and right arc-shaped plates 35. A sliding groove 303 is opened on the side of the arc-shaped plate 35. Anti-detachment grooves 304 are opened on the front and back sides of the inner wall of the sliding groove 303. Two cross-shaped sliders 302 are slidably connected inside the sliding groove 303 and the anti-detachment groove 304 and are fixedly connected to the surface of the arc-shaped plate 35. The cooperation between the sliding groove 303 and the cross-shaped sliders 302 can guide the arc-shaped plate 35 to slide in a straight line. Through this structural design, the operator can flip the two arc-shaped plates 35 synchronously, which facilitates the opening or closing of the two arc-shaped plates 35. In addition, the anti-detachment grooves 304 prevent the mounting plate 301 from falling off. Example 3: Figures 1 to 6As shown, the left and right pipes 2 are fixedly connected to one end of the valve body 1 by a ring 21. The outer surface of the ring 21 has an annular groove 22 on the side near the valve body 1 to accommodate a rubber ring 23. The rubber ring 23 is in a contracted state and its length is greater than the length of the annular groove 22. When the pipe 2 is connected to the valve body 1, the ring 21 and the fixed ring in the valve body 1 squeeze the rubber ring 23 against each other, causing the rubber ring 23 to undergo elastic deformation and fill the gap between the ring 21 and the fixed ring, thereby achieving a seal at the connection and preventing fluid leakage from the gap, thus ensuring the sealing performance of the check valve. Working principle: In use, first, fit the rubber ring 23 into the annular groove 22 of the ring body 21, then align and connect the pipe 2 with the fixing ring of the valve body 1. Next, open the two semicircular rings 31 in the mounting assembly 3 and place them at the connection between the valve body 1 and the pipe 2. Then, close the two semicircular rings 31. During this process, due to the design of the inclined surface 33, it is easy to squeeze against the ring body 21 and the fixing ring in the valve body 1, causing the pipe 2 or valve body 1 to move slightly and compress the rubber ring 23. Under the action of the compressed rubber ring 23, the connection is sealed. After the rubber ring 23 is fully compressed and contracted, press the two semicircular rings 31 together again, so that the ring body 21 and the fixing ring in the valve body 1 are completely inserted into the arc groove 32.

[0019] At this point, the worker flips the mounting plate 301, and while flipping, presses the two arc-shaped plates 35 against each other, causing the spring 36 to contract. When the arc-shaped plates 35 flip and fit against the upper semicircular ring 31, the operator releases the two arc-shaped plates 35. Under the elastic action of the contracted spring 36, the arc-shaped plates 35 on both sides are pushed and moved, causing the positioning pin 37 to enter the interior of the positioning hole 39, thereby locking the two semicircular rings 31.

[0020] After the left side of valve body 1 is connected to the left pipe 2, repeat the above steps to connect the right pipe 2 to the right side of valve body 1. Once both pipes 2 are connected to valve body 1, they form a single unit, facilitating connection to other objects.

[0021] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A butterfly-type hydraulic check valve, comprising a valve body (1), characterized in that: Fixed rings are installed on both the left and right sides of the valve body (1). Pipes (2) are provided on both the left and right sides of the valve body (1). Installation components (3) are installed between the pipes (2) on the left and right sides and the valve body (1). The installation components (3) include two semi-circular rings (31). The two semi-circular rings (31) are movably connected to each other on the rear side. The two semi-circular rings (31) are mirror images of each other. Arc grooves (32) are opened on the inner side of the two semi-circular rings (31). Two inclined surfaces (33) are mirror images of each other on the left and right sides of the arc grooves (32). A connecting rod (34) is fixedly connected to the front side of the outer surface of the lower semi-circular ring (31). Two arc plates (35) are slidably connected through the outer surface of the connecting rod (34). Springs (36) are fixedly connected to the upper and lower sides of the opposite surfaces of the two arc plates (35). Arc plates (38) are fixedly connected to the left and right sides of the front side of the outer surface of the upper semi-circular ring (31).

2. The butterfly-type hydraulic check valve according to claim 1, characterized in that: Positioning holes (39) are provided on the upper and lower surfaces of the two curved plates (38) on the left and right sides.

3. A butterfly-type hydraulic check valve according to claim 1, characterized in that: On the left and right sides of the arc plate (35) away from the spring (36), there are fixed positioning posts (37) on the upper and lower sides. The outer surface of the positioning post (37) is inserted into the inside of the positioning hole (39).

4. A butterfly-type hydraulic check valve according to claim 1, characterized in that: An installation plate (301) is provided on the end face of the arc plate (35) on the left and right sides. A groove (303) is provided on the side of the installation plate (301) near the arc plate (35). Anti-detachment grooves (304) are provided on the front and back sides of the inner wall of the groove (303). Two cross-shaped sliders (302) are slidably connected inside the groove (303) and the anti-detachment groove (304). The surfaces of the two cross-shaped sliders (302) are fixedly connected to the surface of the arc plate (35) respectively.

5. A butterfly-type hydraulic check valve according to claim 1, characterized in that: The pipes (2) on the left and right sides are fixedly connected to a ring (21) at one end near the valve body (1). The outer surface of the ring (21) near the valve body (1) is provided with an annular groove (22). A rubber ring (23) is fitted inside the annular groove (22). The length of the rubber ring (23) is greater than the length of the annular groove (22).

6. A butterfly-type hydraulic check valve according to claim 5, characterized in that: The rubber ring (23) is in a contracted state.

7. A butterfly-type hydraulic check valve according to claim 5, characterized in that: The outer surfaces of the left and right ring bodies (21) and the outer surfaces of the fixed rings in the valve body (1) correspond to the inner sides of the upper and lower arc grooves (32).

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