Three-way internal thread ball valve

Abstract

The utility model relates to the technical field of valves, in particular to a three-way internal thread ball valve, which comprises a valve casing, internal thread butt-joint ports are arranged on three surfaces of the valve casing, an operating valve handle is arranged at the top of the valve casing, a ball-shaped valve cavity is arranged in the valve casing and communicated with the internal thread butt-joint ports, and a deposition cavity is communicated with the lower portion of the ball-shaped valve cavity. A spherical valve element is installed at the position of the spherical valve cavity, a valve rod of the operating valve handle is fixedly connected with the spherical valve element, the bottom of the spherical valve element is in a plane shape, the deposition cavity is located below the spherical valve element, the spherical valve element is provided with a circulation opening communicated with the internal thread butt joint opening, and the bottom of the spherical valve element protrudes inwards to form an inner pipe. According to the three-way internal thread ball valve, the ball valve cavity structure of an existing three-way internal thread ball valve is improved, the deposition cavity is additionally arranged, impurity particles entering the position between the ball valve element and the ball valve cavity are deposited to the position of the deposition cavity, and the inner pipe and the sealing bolt are arranged to seal the bottom of the ball valve element and the internal thread hole.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a three-way internally threaded ball valve. Background Art

[0002] The existing three-way internally threaded ball valve may cause foreign particles to enter between the ball valve and the inner wall of the rotating cavity during use. However, because the ball valve and the rotating cavity are completely in contact with each other, there is no space for the foreign particles to be discharged, resulting in jamming and difficulty in cleaning. Patent CN210661496U also mentions an internally threaded three-way ball valve. During use, impurities in the water can easily cause jamming between the valve core and the valve body, affecting the rotation of the valve core, and in severe cases, causing damage to the valve core. Impurities entering the spherical valve core are also inconvenient to clean. Utility Model Content

[0003] The purpose of the utility model is to provide a three-way internally threaded ball valve to solve the problem in the above background technology that the ball valve and the rotating cavity are in full contact with each other, there is no space for the discharge of impurity particles, which leads to jamming and difficulty in cleaning, and impurities entering the ball valve are also inconvenient to clean.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A three-way internally threaded ball valve comprises a valve housing, three surfaces of the valve housing are provided with internally threaded docking interfaces, the top of the valve housing is provided with an operating valve handle, a spherical valve cavity is opened in the valve housing, the spherical valve cavity is communicated with the internally threaded docking interface, the lower part of the spherical valve cavity is communicated with a deposition cavity, a spherical valve core is installed at the position of the spherical valve cavity, the valve stem of the operating valve handle is fixedly connected to the spherical valve core, the bottom of the spherical valve core is planar, the deposition cavity is located below the spherical valve core, the spherical valve core is provided with a flow port connected to the internally threaded docking interface, the bottom of the spherical valve core is protruded inwardly to form an inner tube, the bottom of the valve housing is provided with an internally threaded hole connected to the deposition cavity, a sealing plug is installed at the position of the internally threaded hole, and the end of the sealing plug is sealed and inserted into the inner tube.

[0006] As a further description of the above technical solution:

[0007] The size of the flow port is the same as the size of the inner port of the internal thread docking interface.

[0008] As a further description of the above technical solution:

[0009] The portion of the sealing bolt that overlaps with the internal threaded hole is provided with an external thread.

[0010] As a further description of the above technical solution:

[0011] The end of the sealing plug is located inside the inner tube.

[0012] As a further description of the above technical solution:

[0013] The end of the sealing bolt is fixedly sleeved with a rubber sealing sleeve.

[0014] As a further description of the above technical solution:

[0015] An annular groove is formed at the end of the sealing bolt, and the rubber sealing sleeve is fixed at the position of the annular groove.

[0016] Compared with the prior art, the present invention provides a three-way internally threaded ball valve with the following beneficial effects:

[0017] 1. In this utility model, the ball valve cavity structure of the existing three-way internally threaded ball valve is improved by adding a sedimentation cavity. Impurity particles that enter between the ball valve core and the ball valve cavity are deposited in the sedimentation cavity. An inner tube and a sealing plug are provided to seal the bottom of the ball valve core and the internally threaded hole.

[0018] 2. In the present invention, by removing the sealing plug, the spherical valve core and the sedimentation cavity can be connected to the outside, the inner cavity of the spherical valve core can be dredged and cleaned, and the foreign particles deposited in the sedimentation cavity can also be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model.

[0022] Legend:

[0023] 1. Valve housing; 2. Internal thread connection; 3. Operating valve handle; 4. Sedimentation cavity; 5. Ball valve core; 6. Flow port; 7. Inner tube; 8. Sealing plug; 9. Rubber sealing sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example:

[0026] See also Figure 1-Figure 3The utility model provides a three-way internally threaded ball valve, including a valve housing 1, three surfaces of the valve housing 1 are provided with internally threaded docking interfaces 2, the top of the valve housing 1 is provided with an operating valve handle 3, a spherical valve cavity is opened in the valve housing 1, the spherical valve cavity is communicated with the internally threaded docking interface 2, the lower part of the spherical valve cavity is communicated with a deposition cavity 4, a spherical valve core 5 is installed at the position of the spherical valve cavity, the valve stem of the operating valve handle 3 is fixedly connected to the spherical valve core 5, the bottom of the spherical valve core 5 is flat, the deposition cavity 4 is located below the spherical valve core 5, the spherical valve core 5 is provided with a flow port 6 connected to the internally threaded docking interface 2, the bottom of the spherical valve core 5 bulges inwardly to form an inner tube 7, the bottom of the valve housing 1 is provided with an internally threaded hole connected to the deposition cavity 4, a sealing plug 8 is installed at the position of the internally threaded hole, and the end of the sealing plug 8 is sealingly inserted into the inner tube 7.

[0027] Specifically, the size of the flow port 6 is the same as the size of the inner port of the internal thread docking port 2, so the flow is smooth.

[0028] Specifically, the portion where the sealing plug 8 overlaps with the internal threaded hole is provided with an external thread to achieve sealing fixation and threaded disassembly of the sealing plug 8. The end of the sealing plug 8 is located on the inner side of the inner tube 7. A rubber sealing sleeve 9 is fixedly installed on the end of the sealing plug 8. An annular groove is provided on the end of the sealing plug 8. The rubber sealing sleeve 9 is fixed in the position of the annular groove. The inner tube 7 is blocked by the rubber sealing sleeve 9, so that when the ball valve core 5 rotates, the inner tube 7 is sealed and leak-proof.

[0029] Working principle:

[0030] When in use, due to the existence of the sedimentation cavity 4, the impurity particles entering between the spherical valve core 5 and the spherical valve cavity will be deposited at the position of the sedimentation cavity 4. When the spherical valve core 5 rotates, the rubber sealing sleeve 9 plays a sealing role to prevent the fluid from rushing out from the position of the inner tube 7. When cleaning, unscrew the sealing plug 8 to clean the impurity particles in the sedimentation cavity 4, and also dredge and clean the inner cavity of the spherical valve core 5.

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-way internally threaded ball valve, comprising a valve housing (1), wherein three surfaces of the valve housing (1) are provided with internally threaded docking ports (2), and the top of the valve housing (1) is provided with an operating valve handle (3), characterized in that: A spherical valve cavity is provided in the valve housing (1), and the spherical valve cavity is connected to the internal threaded interface (2). A deposition cavity (4) is provided at the lower part of the spherical valve cavity. A spherical valve core (5) is installed at the position of the spherical valve cavity. The valve stem of the operating valve handle (3) is fixedly connected to the spherical valve core (5). The bottom of the spherical valve core (5) is flat. The deposition cavity (4) is located below the spherical valve core (5). The spherical valve core (5) is provided with a flow port (6) connected to the internal threaded interface (2). The bottom of the spherical valve core (5) is convex inward to form an inner tube (7). An internal threaded hole connected to the deposition cavity (4) is provided at the bottom of the valve housing (1). A sealing plug (8) is installed at the position of the internal threaded hole. The end of the sealing plug (8) is sealed and inserted into the inner tube (7).

2. A three-way internally threaded ball valve according to claim 1, characterized in that: The size of the flow port (6) is the same as the size of the inner port of the internal thread docking port (2).

3. The three-way internally threaded ball valve according to claim 1, characterized in that: The portion of the sealing plug (8) that overlaps with the internal threaded hole is provided with an external thread.

4. A three-way internally threaded ball valve according to claim 1, characterized in that: The end of the sealing plug (8) is located inside the inner tube (7).

5. The three-way internally threaded ball valve according to claim 1, characterized in that: The end of the sealing bolt (8) is fixedly sleeved with a rubber sealing sleeve (9).

6. A three-way internally threaded ball valve according to claim 5, characterized in that: An annular groove is formed at the end of the sealing bolt (8), and a rubber sealing sleeve (9) is fixed at the position of the annular groove.

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