Automatic cleaning ball valve

Abstract

The utility model provides an automatic cleaning ball valve, which relates to the technical field of valve body structures, and comprises a valve body and a ball valve, the ball valve is arranged in the valve body, a pipeline connected with the valve body at the periphery of the ball valve is provided with a ball valve channel in parallel in a penetrating manner, and both end ports of the ball valve channel are provided with self-cleaning structures. Scraping knives are arranged at ports of the two ends of the valve body and correspond to the ball valve channel. The self-cleaning structure comprises a cutting notch and an internally-tangent ring opening, the cutting notch and the internally-tangent ring opening are both in a semi-annular shape and are vertically and symmetrically arranged, and a knife rest is arranged in the cutting notch. Self-cleaning structures are arranged at the ports of the two ends of the ball valve channel and comprise the cutting notches, the internally-tangent ring openings and the knife rests in the cutting notches, foreign matter possibly attached to the surface of the ball valve or entering the ball valve channel can be automatically cut and removed in the rotating process of the ball valve, and due to the design, the foreign matter is effectively prevented from being clamped into the sealing gasket, and the service life of the sealing gasket is prolonged. Damage of the sealing gasket is reduced, sealing performance of the ball valve is improved, and service life of the ball valve is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of valve body structure technology, and in particular to an automatic cleaning ball valve. Background Technology

[0002] Ball valves are important control components widely used in pipeline systems. They achieve on / off functions by rotating the valve core. In existing ball valves, the openings at both ends rotate from the pipe end to the closed end of the valve body when closing and opening. In actual use, if foreign objects are present inside the ball valve, these objects can easily become stuck in the valve's gasket during rotation, damaging the gasket. Over time, this not only reduces sealing performance but also causes the valve to not close tightly, ultimately leading to leakage. Furthermore, when the ball valve is closed for extended periods, one end is in direct contact with water. Over time, accumulated deposits and dirt adhere to the valve surface. These foreign objects may embed or jam the gasket when the valve is opened, causing damage. Such wear not only increases maintenance costs but also affects the normal operation of the entire system, posing safety hazards. Therefore, to address these issues, we propose an automatically cleaning ball valve. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology. It should be able to effectively remove foreign objects from the inside and the surface, improve its sealing performance, extend its service life, and at the same time ensure that the valve can be opened and closed reliably, reducing the risk of water leakage caused by long-term use.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic cleaning ball valve includes a valve body and a ball valve. The ball valve is disposed in the valve body. A ball valve channel is formed by a pipe that runs parallel to the valve body around the ball valve. Both ends of the ball valve channel are provided with self-cleaning structures. The two ends of the valve body are provided with scraping blades corresponding to the ball valve channel.

[0006] The self-cleaning structure includes a cutting groove and an inner circumferential opening, both of which are arranged vertically symmetrically in a semi-circular shape. A tool holder is provided inside the cutting groove.

[0007] Furthermore, both ends of the pipes are provided with connecting flanges, and a sealing part is provided between the valve body and the ball valve. The sealing part is located inside the valve body near the pipe and arranged around the ball valve passage.

[0008] Furthermore, the scraper is located outside the sealing portion.

[0009] Furthermore, the scraper has an overall circular structure with an arc-shaped blade edge on the outer side, and its lowest point is attached to the surface of the ball valve.

[0010] Furthermore, the cutting grooves and inner circumferential openings of the self-cleaning structures at both ends are arranged in a staggered manner.

[0011] Furthermore, there are three cutting slots. The blade holders in the two edge cutting slots are inclined inward, and there are two sets of blade holders in the middle cutting slot, which are arranged alternately.

[0012] Furthermore, when the ball valve is opened by rotating in the forward direction, the cutting grooves at both ends block the pipe opening towards the inward tangent ring.

[0013] Furthermore, when the ball valve is closed by rotating in the reverse direction, the inner tangent rings at both ends open towards the pipe opening in the direction of the cutting groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting self-cleaning structures at both ends of the ball valve channel, including cutting grooves and inner cutting rings, as well as a knife holder in the cutting grooves, foreign objects that may adhere to the ball valve surface or enter the ball valve channel can be automatically cut and removed during the rotation of the ball valve. This design effectively prevents foreign objects from getting stuck in the sealing gasket, reduces damage to the sealing gasket, and improves the sealing performance and service life of the ball valve.

[0016] 2. The valve body is equipped with scrapers at both ends corresponding to the ball valve passage. The scraper has a circular outer surface with an arc-shaped blade, and the lowest point is in contact with the ball valve surface. When the ball valve rotates, the scraper can further remove the deposits and dirt on the ball valve surface, ensuring the cleanliness and smooth operation of the ball valve.

[0017] In summary, the automatic cleaning ball valve of this utility model, through its innovative self-cleaning structure and scraper design, effectively solves the problems of foreign object entrapment and reduced sealing performance in existing ball valves during use, thereby improving the sealing performance, reliability, and service life of the ball valve. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of an automatic cleaning ball valve provided by this utility model;

[0019] Figure 2 A schematic diagram of the overall structure of an automatic cleaning ball valve provided by this utility model;

[0020] Figure 3 A schematic diagram of an automatic cleaning ball valve structure provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the pipe connection valve body structure of an automatic cleaning ball valve provided by this utility model.

[0022] Legend: 1. Valve body; 11. Connecting flange;

[0023] 2. Ball valve;

[0024] 3. Pipelines;

[0025] 4. Ball valve passage;

[0026] 5. Self-cleaning structure; 51. Cutting groove; 52. Inner cutting ring; 53. Tool holder;

[0027] 6. Scraper;

[0028] 7. Sealing part. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Example 1

[0034] like Figure 1-4As shown, this embodiment demonstrates an automatic cleaning ball valve, which mainly consists of a valve body 1 and a ball valve 2. The ball valve 2 is housed inside the valve body 1. The ball valve 2 is connected to a rotating structure at the top of the valve body, and the rotation is generally limited to 90 degrees. A ball valve passage 4 is opened along the direction parallel to the pipe 3 connected to the valve body 1. The design of this passage allows fluid to pass smoothly when the ball valve 2 is open. The connecting flange 11 connects to the pipeline.

[0035] At both ends of the ball valve channel 4, a self-cleaning structure 5 is designed. This structure consists of a cutting groove 51 and an inner circumferential opening 52, which are arranged in a semi-circular vertical symmetrical manner. Inside the cutting groove 51, we install a knife holder 53. When the ball valve 2 rotates, the knife holder 53 can cut off foreign objects that may be attached to the surface of the ball valve 2 or enter the ball valve channel 4 like scissors.

[0036] In addition, as a basic seal, we have set a sealing part 7 between the valve body 1 and the ball valve 2. This sealing part 7 is located inside the valve body 1, adjacent to the pipe 3, and arranged around the ball valve passage 4 to provide a sealing and leak-proof effect.

[0037] Example 2

[0038] Based on Example 1, Example 2 further optimizes the position and shape of the scraper 6 and the layout of the self-cleaning structure 5:

[0039] like Figure 1-4 As shown, the scraper 6 is placed on the outside of the sealing part 7. Its overall structure is circular, but the outer side is designed with an arc-shaped blade. This allows the lowest point of the scraper 6 to fit tightly against the surface of the ball valve 2. When the ball valve 2 rotates, the scraper 6 acts like a scraper to remove the deposits and dirt from the surface of the ball valve 2.

[0040] The number of cutting slots 51 is set to three. Two of the cutting slots 51 located at the edge have their blade holders 53 tilted inward, while the middle cutting slot 51 is equipped with two sets of staggered blade holders 53 to cut foreign objects in different positions. This layout not only improves cutting efficiency but also ensures the stability of the ball valve 2 during rotation.

[0041] Specifically, when the ball valve is turned in the forward direction to open, the two ends of the cut groove 51 are directed towards the inner cut ring 52 to block the pipe 3 port.

[0042] When the ball valve is closed by rotating in the reverse direction, the inner tangent rings 52 at both ends open towards the cutting groove 51 and towards the pipe 3 port.

[0043] The working process is as follows: When ball valve 2 is opened, ball valve 2 will rotate in the forward direction. During this process, the inner tangent rings 52 at both ends will move toward the cutting groove 51. When ball valve 2 is fully opened, fluid can flow smoothly through ball valve channel 4. When ball valve 2 needs to be closed, ball valve 2 will rotate in the reverse direction. During this process, the cutting grooves 51 at both ends will move toward the inner tangent rings 52, thereby sealing the pipe 3. The rotational pressure of the corresponding cutting groove 51 between pipe 3 and ball valve channel 4 removes foreign objects. During the closing process, scraper 6 removes deposits and dirt from the surface of ball valve 2.

[0044] In summary, this not only ensures that ball valve 2 maintains good sealing performance and service life after long-term use, but also reduces maintenance costs and frequency caused by foreign objects and dirt.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning ball valve, comprising a valve body (1) and a ball valve (2), wherein the ball valve (2) is disposed inside the valve body (1), and a ball valve passage (4) is provided parallel to and extending through a pipe (3) connecting the ball valve (2) to the valve body (1), characterized in that: The ball valve channel (4) is provided with a self-cleaning structure (5) at both ends, and the valve body (1) is provided with a scraper (6) at both ends corresponding to the ball valve channel (4); The self-cleaning structure (5) includes a cutting groove (51) and an inner circumferential opening (52). The cutting groove (51) and the inner circumferential opening (52) are both arranged in a semi-circular vertical symmetrical manner. A tool holder (53) is provided inside the cutting groove (51).

2. The automatic cleaning ball valve according to claim 1, characterized in that: Both ends of the pipes (3) are provided with connecting flanges (11), and both the valve body (1) and the ball valve (2) are provided with sealing parts (7). The sealing parts (7) are located inside the valve body (1) near the pipe (3) and arranged around the ball valve channel (4).

3. The automatic cleaning ball valve according to claim 2, characterized in that: The scraper (6) is located outside the sealing part (7).

4. The automatic cleaning ball valve according to claim 1, characterized in that: The scraper (6) has a circular outer surface with an arc-shaped blade, and the lowest point is attached to the surface of the ball valve (2).

5. The automatic cleaning ball valve according to claim 1, characterized in that: The cutting slots (51) and inner rings (52) of the self-cleaning structures (5) at both ends are arranged in a staggered manner.

6. The automatic cleaning ball valve according to claim 1, characterized in that: There are three cutting slots (51). The knife holders (53) in the two edge cutting slots (51) are inclined inward, and there are two sets of knife holders (53) in the middle cutting slot (51) arranged alternately.

7. The automatic cleaning ball valve according to claim 1, characterized in that: When the ball valve (2) is turned on in the forward direction, the cutting grooves (51) at both ends block the pipe (3) from the direction of the inner tangent ring (52).

8. The automatic cleaning ball valve according to claim 1, characterized in that: When the ball valve (2) is closed by rotating in the opposite direction, the inner tangent rings (52) at both ends open toward the pipe (3) in the direction of the cutting groove (51).

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