A new type of three-way cock valve

Abstract

The application relates to the technical field of three-way plug valves, and discloses a novel three-way plug valve which comprises a valve body, the surface of the valve body is fixedly connected with three pipelines, a through groove is arranged in the surface of the valve body, a rotating chamber is arranged in the valve body, a valve plug is rotatably connected in the rotating chamber, the valve plug is hollow, a rectangular channel is arranged in the surface of the valve plug, an installation plate is fixedly connected in the through groove, an installation rod is rotatably connected to the surface of the installation plate, a connecting plate is fixedly connected to the end of the installation rod, through cooperation of the installation rod, the connecting plate, a driving rod, a first bevel gear and a second bevel gear, relatively convenient descaling operation on the inside of the pipeline is realized, the follow-up flow efficiency in the pipeline is ensured, the practicability is relatively high, the frequency of manually performing the descaling operation is reduced, the stability of equipment operation is effectively ensured, the service life is prolonged, and the safety is relatively high.

Description

Technical Field

[0001] This invention relates to the field of three-way plug valve technology, specifically a novel three-way plug valve. Background Technology

[0002] A plug valve is a rotary valve with a shut-off element or plunger. It is opened or closed by rotating the plug 90 degrees to connect or separate the passage on the plug from the passage on the valve body. The plug of a plug valve can be cylindrical or conical. In cylindrical plugs, the passage is generally rectangular; while in conical plugs, the passage is trapezoidal.

[0003] After prolonged use, some existing three-way plug valves accumulate scale, grease, and other deposits that reduce the inner diameter of the pipe, increase flow resistance, and lead to decreased flow rate or increased pump power consumption. Typically, after a period of use, descaling is required, which undoubtedly increases the workload of staff, reduces practicality, hinders stable equipment operation, shortens service life, and poses safety hazards. Therefore, we propose a new type of three-way plug valve to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a novel three-way plug valve to solve the problem that some existing three-way plug valves are inconvenient for descaling.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel three-way plug valve, comprising a valve body, three pipes fixedly connected to the surface of the valve body, a through groove formed on the surface of the valve body, a rotating chamber formed inside the valve body, a valve plug rotatably connected inside the rotating chamber, the valve plug being hollow inside, a rectangular channel formed on the surface of the valve plug, a mounting plate fixedly connected inside the through groove, a mounting rod rotatably connected to the surface of the mounting plate, a connecting plate fixedly connected to the end of the mounting rod, two scrapers fixedly connected to the surface of the connecting plate, a cavity formed inside the mounting plate, and a connecting assembly disposed inside the cavity.

[0006] Preferably, the connecting assembly includes a drive rod, which is rotatably connected to the top wall of the cavity, and a first bevel gear is fixedly connected to the lower end of the drive rod. The valve plug is provided with a drive assembly on its exterior.

[0007] Preferably, the rear end of the mounting rod rotatably penetrates into the interior of the cavity, the rear end of the mounting rod is rotatably connected to the inner wall of the cavity, and a second bevel gear is fixedly sleeved on the outer surface of a section of the mounting rod located inside the cavity, the second bevel gear and the first bevel gear meshing together.

[0008] Preferably, the valve body has an annular groove inside, the annular groove is connected to the rotating chamber, the upper end of the drive rod rotates through the interior of the annular groove, and the upper end of the drive rod is rotatably connected to the top wall of the annular groove.

[0009] Preferably, the drive assembly includes a retaining ring, which is fixedly sleeved on the outer surface of the valve plug, extends into the interior of the annular groove, and has teeth fixedly connected to its surface.

[0010] Preferably, a transmission gear is fixedly sleeved on the outer surface of a section of the drive rod inside the annular groove, and the transmission gear is engaged with the teeth.

[0011] Preferably, a valve stem is fixedly connected to the upper surface of the valve plug, and the valve stem rotates through the interior of the valve body.

[0012] Preferably, the scraper and the inner wall of the pipe are in contact.

[0013] Compared with the prior art, the present invention provides a novel three-way plug valve, which has the following beneficial effects: 1. This new type of three-way plug valve, through the cooperation of the mounting rod, connecting plate, drive rod, first bevel gear and second bevel gear, realizes a relatively convenient descaling operation inside the pipeline, thereby ensuring the flow efficiency inside the pipeline. It has high practicality, reduces the frequency of manual descaling operations, effectively ensures the stability of equipment operation, extends service life, and has high safety.

[0014] 2. This new type of three-way plug valve, through the cooperation of a fixed ring, teeth, and transmission gear, allows for descaling operations every time the operator adjusts the flow direction of the pipeline, reducing the number of steps required and further improving the overall flexibility and practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a novel three-way plug valve according to the present invention; Figure 2 This is a cross-sectional view of the valve body of the present invention; Figure 3 This is a cross-sectional view of the mounting plate of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0016] In the diagram: 1. Valve body; 2. Pipeline; 3. Rotating chamber; 4. Valve plug; 5. Rectangular channel; 6. Mounting plate; 7. Mounting rod; 8. Connecting plate; 9. Scraper; 10. Cavity; 11. Drive rod; 12. First bevel gear; 13. Second bevel gear; 14. Annular groove; 15. Fixing ring; 16. Teeth; 17. Transmission gear; 18. Valve stem; 19. Through groove. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-5 This invention provides a technical solution: a novel three-way plug valve, comprising a valve body 1, three pipes 2 fixedly connected to the surface of the valve body 1, a through groove 19 formed on the surface of the valve body 1, a rotating chamber 3 formed inside the valve body 1, the three pipes 2 being connected to the rotating chamber 3 through the through groove 19, a valve plug 4 being rotatably connected inside the rotating chamber 3, the valve plug 4 being hollow inside, a rectangular channel 5 formed on the surface of the valve plug 4, the three pipes 2 being connected to each other through the valve plug 4 and the rectangular channel 5, a mounting plate 6 fixedly connected inside the through groove 19, a mounting rod 7 rotatably connected to the surface of the mounting plate 6, a connecting plate 8 fixedly connected to the end of the mounting rod 7, two scrapers 9 fixedly connected to the surface of the connecting plate 8, a cavity 10 formed inside the mounting plate 6, and a connecting assembly disposed inside the cavity 10.

[0019] The scraper 9 fits snugly against the inner wall of the pipe 2, and the main body of the scraper 9 is made of stainless steel to reduce costs. Tungsten carbide particles are inlaid on the edges to enhance wear resistance.

[0020] The connecting assembly includes a drive rod 11, which is rotatably connected to the top wall of the cavity 10. The lower end of the drive rod 11 is fixedly connected to a first bevel gear 12, and the valve plug 4 is provided with a drive assembly on its exterior.

[0021] The rear end of the mounting rod 7 rotates and penetrates into the interior of the cavity 10. The rear end of the mounting rod 7 is rotatably connected to the inner wall of the cavity 10. A second bevel gear 13 is fixedly sleeved on the outer surface of a section of the mounting rod 7 inside the cavity 10. The second bevel gear 13 and the first bevel gear 12 are meshed and connected.

[0022] The valve body 1 has an annular groove 14 inside, which is connected to the rotating chamber 3. The upper end of the drive rod 11 rotates through the interior of the annular groove 14, and the upper end of the drive rod 11 is rotatably connected to the top wall of the annular groove 14.

[0023] The drive assembly includes a retaining ring 15, which is fixedly sleeved on the outer surface of the valve plug 4. The retaining ring 15 extends into the interior of the annular groove 14, and teeth 16 are fixedly connected to the surface of the retaining ring 15.

[0024] A transmission gear 17 is fixedly sleeved on the outer surface of a section of the drive rod 11 inside the annular groove 14, and the transmission gear 17 is meshed with the teeth 16.

[0025] A valve stem 18 is fixedly connected to the upper surface of the valve plug 4, and the valve stem 18 rotates through the interior of the valve body 1.

[0026] Working principle: When using this new three-way plug valve, if the operator needs to adjust the three-way plug valve, rotating the valve stem 18 will drive the valve plug 4 to rotate. The rotation of the valve plug 4 will switch the connection state between the three pipes 2. The rotation of the valve plug 4 will also drive the rotation of the fixed ring 15. Since the teeth 16 on the surface of the fixed ring 15 mesh with the transmission gear 17, when the valve plug 4 drives the fixed ring 15 to rotate, it will also drive the transmission gear 17 to rotate. The rotation of the transmission gear 17 will drive the rotation of the drive rod 11. The rotation of the drive rod 11 will drive the rotation of the first bevel gear 12. The rotation of the first bevel gear 12 will drive the rotation of the second bevel gear 13. The rotation of the second bevel gear 13 will drive the rotation of the mounting rod 7. The rotation of the mounting rod 7 will drive the rotation of the connecting plate 8. The rotation of the connecting plate 8 will drive the movement of the scraper 9. At this time, the scraper 9 will perform descaling on the inner wall of the pipe 2, thus achieving automatic cleaning during the operator's adjustment of the connection state of the pipe 2.

[0027] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel three-way plug valve, comprising a valve body (1), characterized in that: Three pipes (2) are fixedly connected to the surface of the valve body (1). A through groove (19) is opened on the surface of the valve body (1). A rotating chamber (3) is opened inside the valve body (1). A valve plug (4) is rotatably connected inside the rotating chamber (3). The valve plug (4) is hollow inside. A rectangular channel (5) is opened on the surface of the valve plug (4). An installation plate (6) is fixedly connected inside the through groove (19). An installation rod (7) is rotatably connected to the surface of the installation plate (6). A connecting plate (8) is fixedly connected to the end of the installation rod (7). Two scrapers (9) are fixedly connected to the surface of the connecting plate (8). A cavity (10) is opened inside the installation plate (6). A connecting component is provided inside the cavity (10).

2. The novel three-way plug valve according to claim 1, characterized in that: The connecting assembly includes a drive rod (11), which is rotatably connected to the top wall of the cavity (10). The lower end of the drive rod (11) is fixedly connected to a first bevel gear (12), and the valve plug (4) is provided with a drive assembly on its exterior.

3. A novel three-way plug valve according to claim 2, characterized in that: The rear end of the mounting rod (7) rotates through into the interior of the cavity (10), and the rear end of the mounting rod (7) is rotatably connected to the inner wall of the cavity (10). A second bevel gear (13) is fixedly sleeved on a section of the outer surface of the mounting rod (7) inside the cavity (10), and the second bevel gear (13) and the first bevel gear (12) are meshed together.

4. A novel three-way plug valve according to claim 2, characterized in that: The valve body (1) has an annular groove (14) inside, which is connected to the rotating chamber (3). The upper end of the drive rod (11) rotates through the interior of the annular groove (14), and the upper end of the drive rod (11) is rotatably connected to the top wall of the annular groove (14).

5. A novel three-way plug valve according to claim 4, characterized in that: the driving assembly includes a fixing ring (15), the fixing ring (15) is fixedly sleeved on the outer surface of the valve plug (4), the fixing ring (15) extends into the interior of the annular groove (14), and the surface of the fixing ring (15) is fixedly connected with teeth (16).

6. A novel three-way plug valve according to claim 5, characterized in that: The drive rod (11) is fixedly fitted with a transmission gear (17) on the outer surface of a section inside the annular groove (14), and the transmission gear (17) and the teeth (16) are meshed together.

7. A novel three-way plug valve according to claim 5, characterized in that: The valve stem (18) is fixedly connected to the upper surface of the valve plug (4), and the valve stem (18) rotates through the interior of the valve body (1).

8. A novel three-way plug valve according to claim 1, characterized in that: The scraper (9) and the inner wall of the pipe (2) are attached.

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