Butterfly valve anti-blocking structure

Abstract

The utility model discloses an anti-blocking structure of a butterfly valve. The anti-blocking structure comprises a pipe body, a filter screen, a collecting box and a crushing mechanism, wherein the pipe body can be communicated with the butterfly valve; the filter screen is arranged in the pipe body and is used for filtering impurities in water flow in the pipe body; impurities in water are filtered through the filter screen, then under the action of gravity and water flow, the impurities enter the collecting box and are prevented from being attached to the filter screen to affect water passing, finally, the impurities in the collecting box are crushed through the crushing mechanism, the impurities can be washed away through the filter screen, the large-size impurities are crushed, and the water passing efficiency is improved. Therefore, small-size impurities can be washed away by water flow more easily, and the anti-blocking effect of the butterfly valve is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to an anti-blocking structure of a butterfly valve. Background Art

[0002] A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure that can be used for switching control of low-pressure pipeline media. A butterfly valve refers to a valve in which the closing member (valve disc or butterfly plate) is a disc that rotates around the valve axis to achieve opening and closing.

[0003] During the current use of butterfly valves, some fluids may contain impurities that adhere to the butterfly plate or block the butterfly plate closing channel, making it difficult for the butterfly plate to be completely closed and difficult to ensure sealing. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a butterfly valve anti-blocking structure which can prevent the butterfly valve from being blocked.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a butterfly valve anti-blocking structure, comprising a pipe body that can be connected to the butterfly valve, a filter screen arranged in the pipe body for filtering debris in the water flow of the pipe body, a collection box connected to the bottom of the pipe body for accommodating impurities filtered by the filter screen, and a crushing mechanism for crushing debris in the collection box.

[0006] Furthermore, the filter is elastically slidably arranged in the tube body along the drainage direction, and the collecting box is located on the drainage side of the filter when the filter does not slide, and is located on the water inlet side of the filter after the filter slides.

[0007] Furthermore, it also includes a turbine located on the drainage side of the filter and rotatably connected to the filter.

[0008] Furthermore, any fan blade of the turbine is also provided with a brush for cleaning the butterfly valve plate of the butterfly valve.

[0009] Furthermore, the crushing mechanism includes a rotating shaft arranged on the collecting box and rotating along its own circumference, and a plurality of blades arranged on the circumference and axial direction of the rotating shaft.

[0010] Furthermore, the rotating shaft includes a receiving portion rotatably inserted into the collecting box and an adjusting portion slidably connected to the receiving portion along its axial direction, and the crushing mechanism also includes an adjusting plate rotatably cooperated with the adjusting portion and slidably cooperated with the collecting box, and an adjusting rod rotatably inserted into the collecting box and threadably cooperated with the adjusting plate.

[0011] Furthermore, it also includes a one-way air valve connected to the collection box.

[0012] Furthermore, the filter screen is arranged to be tilted downward along the drainage direction.

[0013] Furthermore, it also includes a guide block arranged in the pipe body for guiding water flow to rush toward the filter screen from top to bottom.

[0014] The collecting box is detachably connected to the tube body.

[0015] The beneficial effects of the utility model are embodied in:

[0016] The utility model discloses an anti-blocking structure for a butterfly valve, which first filters impurities in the water by setting a filter screen. Then, under the action of gravity and water flow, the impurities enter a collection box to prevent them from sticking to the filter screen and affecting the water flow. Finally, the impurities in the collection box are crushed by a crushing mechanism so that they can be washed away through the filter screen. By crushing large-volume impurities, small-volume impurities can be more easily washed away by the water flow, thereby achieving the anti-blocking effect of the butterfly valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the anti-blocking structure of the butterfly valve of the utility model;

[0018] Figure 2 This is a cross-sectional view of the utility model butterfly valve anti-blocking structure in an unused state;

[0019] Figure 3 This is a cross-sectional view of the utility model butterfly valve anti-blocking structure in use;

[0020] Figure 4 yes Figure 2 Enlarged view of part A.

[0021] The components in the attached drawings are marked as follows: 1. tube body; 2. filter screen; 3. collecting box; 4. crushing mechanism; 401. rotating shaft; 4011. receiving part; 4012. adjusting part; 402. blade; 403. adjusting plate; 404. adjusting rod; 5. turbine; 6. brush; 7. one-way air valve; 8. guide block. DETAILED DESCRIPTION

[0022] 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. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 2 .

[0024] The utility model butterfly valve anti-blocking structure comprises a pipe body 1 which can be connected to the butterfly valve, a filter screen 2 arranged in the pipe body 1 for filtering debris in the water flow of the pipe body 1, a collection box 3 connected to the bottom of the pipe body 1 for receiving impurities filtered by the filter screen 2, and a crushing mechanism 4 for crushing the debris in the collection box 3.

[0025] The utility model butterfly valve anti-blocking structure first filters the impurities in the water by setting the filter screen 2, and then the impurities enter the collection box 3 under the action of gravity and water flow to prevent them from sticking to the filter screen 2 and affecting the water flow, and finally the impurities in the collection box 3 are crushed by the crushing mechanism 4 so that they can be washed away through the filter screen 2. By crushing large-volume impurities, small-volume impurities are more easily washed away by the water flow, thereby achieving the anti-blocking effect of the butterfly valve.

[0026] In one embodiment, see Figure 2 and Figure 3 , the filter screen 2 is elastically slidably arranged in the pipe body 1 along the drainage direction, and the collection box 3 is located on the drainage side of the filter screen 2 when the filter screen 2 is not sliding, and is located on the water inlet side of the filter screen 2 after the filter screen 2 slides. With this design, the filter screen 2 can be moved when draining water to place the collection box 3 on its own water inlet side to receive impurities. When not draining water, the filter screen 2 is reset by elastic action, and the collection box 3 is located on its own drainage side to crush impurities, so that crushing and filtering can be carried out in a distributed manner, respectively improving efficiency. In this embodiment, the elastic sliding of the filter screen 2 is achieved through a connecting sleeve, a spring is arranged in the sleeve, the sleeve and the pipe body 1 are sealed and slidable, and one end of the spring is connected to the pipe body 1 and the other end is connected to the filter screen 2.

[0027] In one embodiment, see Figure 2 and Figure 3 , and also includes a turbine 5 located on the drainage side of the filter screen 2 and rotatably connected to the filter screen 2. In this design, the sliding speed of the filter screen 2 can be accelerated by rotating the turbine 5 during drainage, and the collection box 3 is quickly located on the water inlet side of the filter screen 2.

[0028] In one embodiment, see Figure 2 and Figure 3 A brush 6 is also provided on any blade of the turbine 5 to clean the butterfly valve plate of the butterfly valve. With this design, the turbine 5 is displaced synchronously with the displacement of the filter screen 2, so that it is extended to contact the butterfly valve plate of the butterfly valve, and the rotation of the turbine 5 and the design of the brush 6 can clean the butterfly valve plate of the butterfly valve, thereby further preventing blockage.

[0029] In one embodiment, see Figure 4The crushing mechanism 4 includes a rotating shaft 401 which is arranged on the collection box 3 and rotates along its own circumference, and a plurality of blades 402 which are arranged on the circumference and axial direction of the rotating shaft 401. This design achieves a crushing effect, and in this embodiment, the rotating shaft 401 is driven to rotate by an externally arranged motor, and the rotating shaft 401 is rotatably sealed and connected to the collection box 3.

[0030] In one embodiment, see Figure 4 The rotating shaft 401 includes a receiving portion 4011 rotatably inserted on the collecting box 3 and an adjusting portion 4012 slidably connected to the receiving portion 4011 along its axial direction. The crushing mechanism 4 also includes an adjusting plate 403 rotatably matched with the adjusting portion 4012 and slidably matched with the collecting box 3, and an adjusting rod 404 rotatably inserted with the collecting box 3 and threadedly matched with the adjusting plate 403. In this embodiment, the adjusting rod 404 is driven to rotate by an externally arranged motor, and the adjusting rod 404 is rotatably sealed and connected to the collecting box 3. The blade 402 is arranged on the adjusting portion 4012. In this design, the rotating adjusting rod 404 can move the adjusting portion 4012 along the receiving portion 4011, thereby improving the crushing effect of the crushing mechanism 4.

[0031] In one embodiment, see Figure 4 , and also includes a one-way air valve 7 connected to the collecting box 3. With this design, after the crushing mechanism 4 is crushed, the crushed impurities and the discharge of the water flow can be achieved by passing high-pressure gas.

[0032] In one embodiment, see Figure 4 The filter screen 2 is tilted downward along the drainage direction. This design facilitates the impurities to fall into the collection box 3.

[0033] In one embodiment, see Figure 1 , and also includes a guide block 8 arranged in the pipe body 1 for guiding the water flow to rush to the filter screen 2 from top to bottom. This design facilitates the water flow to flush the impurities on the filter screen 2 into the collection box 3.

[0034] In one embodiment, see Figure 4 The collecting box 3 is detachably connected to the tube body 1. This design facilitates the maintenance of the crushing mechanism 4 and the inspection of the interior of the tube body 1.

[0035] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0037] It should be understood that the examples and implementation modes described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on the examples and implementation modes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A butterfly valve anti-blocking structure, Features , comprising a pipe body (1) that can be connected to a butterfly valve, a filter screen (2) disposed in the pipe body (1) and used to filter debris in a water flow in the pipe body (1), a collection box (3) connected to the bottom of the pipe body (1) and used to receive impurities filtered by the filter screen (2), and a crushing mechanism (4) used to crush the debris in the collection box (3).

2. According to the butterfly valve anti-blocking structure of claim 1, Features The filter (2) is elastically slidably arranged in the pipe body (1) along the drainage direction, and the collection box (3) is located on the drainage side of the filter (2) when the filter (2) does not slide, and is located on the water inlet side of the filter (2) after the filter (2) slides.

3. According to claim 2, the butterfly valve anti-blocking structure, Features , and also includes a turbine (5) located on the drainage side of the filter (2) and rotatably connected to the filter (2).

4. According to claim 3, the butterfly valve anti-blocking structure, Features Any blade of the turbine (5) is also provided with a brush (6) for cleaning the butterfly valve plate of the butterfly valve.

5. The butterfly valve anti-blocking structure according to any one of claims 1 to 4, Features The crushing mechanism (4) comprises a rotating shaft (401) arranged on the collection box (3) and rotatable along its own circumference, and a plurality of blades (402) arranged on the rotating shaft (401) in the circumferential direction and in the axial direction.

6. According to claim 5, the butterfly valve anti-blocking structure, Features The rotating shaft (401) includes a receiving portion (4011) rotatably inserted into the collecting box (3) and an adjusting portion (4012) slidably connected to the receiving portion (4011) along its axial direction. The crushing mechanism (4) also includes an adjusting plate (403) rotatably engaged with the adjusting portion (4012) and slidably engaged with the collecting box (3) and an adjusting rod (404) rotatably inserted into the collecting box (3) and threadably engaged with the adjusting plate (403).

7. According to claim 5, the butterfly valve anti-blocking structure, Features , and also includes a one-way air valve (7) connected to the collection box (3).

8. According to claim 5, the butterfly valve anti-blocking structure, Features The filter screen (2) is arranged to be inclined downward along the drainage direction.

9. According to claim 8, the butterfly valve anti-blocking structure, Features , and also includes a guide block (8) disposed in the pipe body (1) and used to guide water flow from top to bottom toward the filter screen (2).

10. The butterfly valve anti-blocking structure according to claim 5, Features The collecting box (3) is detachably connected to the tube body (1).

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