Anti-blocking threaded ball valve

Abstract

The utility model discloses an anti-blocking threaded ball valve which comprises a first ball valve shell, a second ball valve shell is arranged below the first ball valve shell, the end of the first ball valve shell and the end of the second ball valve shell are sleeved with fixing pipes, the upper end of the first ball valve shell is connected with a rotating shaft, a valve rod is installed at the upper end of the rotating shaft, and the lower end of the rotating shaft is connected with a valve element. A through hole is formed in the lower end of the valve element, and a liquid discharging pipe is installed at the lower end of the second ball valve shell. According to the anti-blocking threaded ball valve, the first ball valve shell and the second ball valve shell can be tightly attached and limited through the fixing pipe, the fixing pipe and the ball valve shells are locked, assembling of the threaded ball valve is achieved, then the threaded ball valve can be conveniently disassembled, and the interior of the threaded ball valve can be conveniently cleaned and maintained; by means of the sealing strip, the leakproofness of the threaded ball valve can be improved when the valve element is closed, leakage of the threaded ball valve is avoided, and residual water in the valve element can be discharged along the through hole and the liquid discharging pipe by detaching the threaded cap from the liquid discharging pipe.

Description

Technical Field

[0001] This utility model relates to the field of threaded ball valve technology, specifically to an anti-clogging threaded ball valve. Background Technology

[0002] A threaded ball valve is a type of ball valve that connects to a pipeline via threads. It uses a ball with a circular channel as the opening and closing element. The ball rotates with the valve stem to achieve the opening and closing action. It is mainly used to open and close the medium in pipelines and equipment, and can also be used for fluid regulation and control. Its installation method is simple and does not require complicated installation tools and processes. It is widely used in chemical, petroleum, power, pharmaceutical, food, dairy beverage, cosmetic and engineering supporting industrial pipeline fields.

[0003] When a threaded ball valve is in use, liquid flows inside the valve, and impurities accumulate inside. The valve cannot be easily disassembled for cleaning, which can easily cause blockage. Furthermore, after the valve core closes, a gap exists between it and the valve body, resulting in poor sealing and liquid leakage. Therefore, we propose an anti-clogging threaded ball valve to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-clogging threaded ball valve to solve the problems mentioned in the background art, such as the inconvenience of disassembling and cleaning threaded ball valves in the current market, which easily leads to clogging of the threaded ball valves, and the gap between the valve core and the valve body after the valve core is closed, which causes poor sealing performance of the threaded ball valve.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a threaded ball valve for preventing blockage, comprising a ball valve housing one, a ball valve housing two disposed below the ball valve housing one, a fixing tube sleeved at the ends of the ball valve housing one and the ball valve housing two, a rotating shaft connected to the upper end of the ball valve housing one, a valve stem installed at the upper end of the rotating shaft, and a valve core connected to the lower end of the rotating shaft;

[0006] The lower end of the valve core is provided with a through hole, and the lower end of the ball valve housing is provided with a drain pipe. The lower end of the drain pipe is threaded with a sealing cap, and sealing strips are connected to the inner walls of both the ball valve housing and the ball valve housing.

[0007] Preferably, the ball valve housing includes an extension plate and a boss, with the extension plate installed at both the left and right ends of the ball valve housing, and the boss connected to the outer side of the extension plate.

[0008] Preferably, the ball valve housing 2 includes an extension plate 2 and a boss 2, with extension plates 2 installed at both the left and right ends of the ball valve housing 2, and bosses 2 connected to the outer side of the extension plates 2.

[0009] Preferably, the fixing tube includes an extension plate three and a boss three. The boss three is installed at one end of the fixing tube near the ball valve housing one, and the extension plate three is connected to the outside of the boss three.

[0010] Preferably, both the first and second extension plates are fixed to the third extension plate by bolts, and both the first and second extension plates are in close contact with the third extension plate.

[0011] Preferably, the contact surfaces of the first and second bosses and the third boss are all inclined, and the inclined surfaces of the first and second bosses and the third boss are in close contact.

[0012] Preferably, the sealing strip has an arc-shaped structure, and the edges and corners of the sealing strip are distributed in a smooth arc shape.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The anti-clogging threaded ball valve can use a fixed tube to tightly fit and limit the ball valve body one and ball valve body two, and lock the fixed tube to the ball valve body to realize the assembly of the threaded ball valve. Then the threaded ball valve can be easily disassembled to clean and maintain the inside of the threaded ball valve and avoid internal blockage.

[0015] (2) The anti-clogging threaded ball valve can increase the sealing performance of the threaded ball valve when the valve core is closed by using a sealing strip to prevent leakage. Furthermore, by removing the threaded cap from the drain pipe, the water remaining inside the valve core can be discharged through the through hole and drain pipe, thus preventing the water remaining inside the valve core from freezing and causing blockage of the threaded ball valve in winter. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the fixed tube structure of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0020] In the diagram: 1. Ball valve housing 1; 101. Extension plate 1; 102. Boss 1; 2. Ball valve housing 2; 201. Extension plate 2; 202. Boss 2; 3. Rotating shaft; 4. Valve stem; 5. Valve core; 6. Fixed pipe; 601. Extension plate 3; 602. Boss 3; 7. Through hole; 8. Drain pipe; 9. Sealing cover; 10. Sealing strip. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 The present invention provides the following technical solution: a threaded ball valve for preventing blockage, comprising a ball valve housing 1, a ball valve housing 2 below the ball valve housing 1, a fixing tube 6 sleeved at the ends of the ball valve housing 1 and the ball valve housing 2, a rotating shaft 3 connected to the upper end of the ball valve housing 1, a valve stem 4 installed at the upper end of the rotating shaft 3, and a valve core 5 connected to the lower end of the rotating shaft 3.

[0023] Furthermore, the ball valve housing 1 includes an extension plate 101 and a boss 102. The extension plate 101 is installed at both the left and right ends of the ball valve housing 1, and the boss 102 is connected to the outer side of the extension plate 101. The ball valve housing 2 includes an extension plate 201 and a boss 202. The extension plate 201 is installed at both the left and right ends of the ball valve housing 2, and the boss 202 is connected to the outer side of the extension plate 201. The fixed pipe 6 includes an extension plate 301 and a boss 302. The boss 302 is installed at the end of the fixed pipe 6 near the ball valve housing 1, and the extension plate 301 is connected to the outer side of the boss 302.

[0024] Furthermore, both extension plate 101 and extension plate 201 are fixed to extension plate 3 601 by bolts, and both extension plate 101 and extension plate 201 are tightly fitted to extension plate 3 601.

[0025] Furthermore, the contact surfaces of cam 102 and cam 202 with cam 302 are all inclined, and the inclined surfaces of cam 102 and cam 202 with cam 302 are tightly fitted, which can realize the tight assembly of the threaded ball valve.

[0026] The lower end of the valve core 5 is provided with a through hole 7, the lower end of the ball valve housing 2 is provided with a drain pipe 8, the lower end of the drain pipe 8 is threaded with a sealing cap 9, and sealing strips 10 are connected to the inner walls of both the ball valve housing 1 and the ball valve housing 2.

[0027] Furthermore, the sealing strip 10 has an arc-shaped structure, and the edges and corners of the sealing strip 10 are distributed in a smooth arc shape. The sealing strip 10 is used to seal the edges of the closed valve core 5, and the valve core 5 can squeeze the sealing strip 10 to rotate smoothly.

[0028] Specifically, disassemble the threaded ball valve, then remove the bolts connecting the mounting pipe 6 to the ball valve housing 1 and ball valve housing 2. Gradually remove the mounting pipe 6, moving it away from the ball valve housing 1 and ball valve housing 2. This releases the restriction imposed by the mounting pipe 6 on the ball valve housing 1 and ball valve housing 2, allowing the ball valve housing 1 and ball valve housing 2 to be separated. The inside of the threaded ball valve can then be cleaned and maintained to prevent internal blockage. After cleaning, the ball valve housing 1 and ball valve housing 2 can be reassembled. Then, the fixing tube 6 is gradually fitted onto the ends of ball valve housing 1 and ball valve housing 2. The third boss 602 gradually presses against the first boss 102 and the second boss 202, so that the ball valve housing 1 and the second ball valve housing 2 fit tightly together. The extension plate 3 601, the extension plate 101, and the extension plate 201 are locked with bolts, so that the fixing tube 6 is assembled with the ball valve housing 1 and the second ball valve housing 2, realizing the assembly of the threaded ball valve. The valve stem 4 drives the valve core 5 to rotate, which can realize the opening and closing of the threaded ball valve.

[0029] When the valve core 5 rotates to the point where its channel is misaligned with the channel of the fixed pipe 6, the threaded ball valve is closed. At this time, the sealing strip 10 fits tightly with the valve core 5, increasing the sealing performance of the threaded ball valve and preventing leakage. The sealing cap 9, which is threaded onto the drain pipe 8, can be removed, allowing the water remaining inside the valve core 5 to drain through the through hole 7 and the drain pipe 8. This prevents the water remaining inside the valve core 5 from freezing and causing blockage of the threaded ball valve in winter. The contents not described in detail in this specification are prior art known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A plug valve against clogging, comprising a plug valve housing (1), characterized in that: The lower part of the ball valve shell one (1) is provided with a ball valve shell two (2), the end of the ball valve shell one (1) and the ball valve shell two (2) is sleeved with a fixed pipe (6), the upper end of the ball valve shell one (1) is connected with a rotating shaft (3), the upper end of the rotating shaft (3) is installed with a valve stem (4), the lower end of the rotating shaft (3) is connected with a valve core (5); The lower end of the valve core (5) is provided with a through hole (7), the lower end of the ball valve shell two (2) is installed with a drain pipe (8), the lower end of the drain pipe (8) is threadedly connected with a sealing cover (9), the inner wall of the ball valve shell one (1) and the ball valve shell two (2) is connected with a sealing strip (10).

2. A plug valve according to claim 1, wherein: The ball valve shell one (1) includes an extension plate one (101) and a convex seat one (102), the left and right ends of the ball valve shell one (1) are installed with an extension plate one (101), the outer side of the extension plate one (101) is connected with a convex seat one (102).

3. A plug valve according to claim 2, wherein: The ball valve shell two (2) includes an extension plate two (201) and a convex seat two (202), the left and right ends of the ball valve shell two (2) are installed with an extension plate two (201), the outer side of the extension plate two (201) is connected with a convex seat two (202).

4. A plug valve according to claim 3, wherein: The fixed pipe (6) includes an extension plate three (601) and a convex seat three (602), one end of the fixed pipe (6) close to the ball valve shell one (1) is installed with a convex seat three (602), the outer side of the convex seat three (602) is connected with an extension plate three (601).

5. A plug valve according to claim 4, wherein: The extension plate one (101) and the extension plate two (201) are fixed with the extension plate three (601) through bolts, the extension plate one (101) and the extension plate two (201) are closely attached with the extension plate three (601).

6. A plug valve according to claim 4, wherein: The contact surface of the convex seat one (102) and the convex seat two (202) and the convex seat three (602) is inclined, the inclined surface of the convex seat one (102) and the convex seat two (202) and the convex seat three (602) is closely attached.

7. A plug valve according to claim 1, wherein: The sealing strip (10) is an arc structure, the edge of the sealing strip (10) is distributed in a smooth arc shape.

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