Sealing type gate valve

Abstract

The utility model discloses a sealing type gate valve which comprises a first valve body, a first through groove is formed in one side of the top of the first valve body, a second valve body is fixedly connected to one side of the top of the first valve body, and a first threaded rod is rotationally connected between one side of the bottom in the first valve body and one side in the second valve body. The outer side of the first threaded rod is in threaded connection with a moving plate, the left side of the first valve body is fixedly connected with a water inlet, the right side of the second valve body is fixedly connected with a water outlet, and the left side of the bottom of the first valve body is fixedly connected with a drain outlet. And the outer side of the second threaded rod is in threaded connection with a baffle, so that the baffle can be driven to move, the water outlet is blocked, water enters the water inlet, impurities in the first valve body can be washed away, and then the impurities are discharged from the drain outlet.

Description

Technical Field

[0001] The utility model belongs to the technical field of gate valves, and in particular relates to a sealing gate valve. Background Art

[0002] A gate valve is a gate-shaped valve used to cut off and regulate flow. It is installed on the outlet pipeline of a centrifugal pump or a mixed flow pump. It is used to connect and cut off the medium in the pipeline. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened or fully closed and cannot be used for regulating and throttling. The gate valve is sealed by contact between the valve seat and the gate. Usually, the sealing surface is welded with metal materials to increase wear resistance. The working principle is that the movement direction of the gate is perpendicular to the direction of the fluid, and the gate of the gate valve moves linearly with the valve stem.

[0003] When the existing gate valve is conveying a medium, there will be impurities inside the medium. Long-term use will cause the impurities to accumulate at the water outlet and inside the gate valve, causing the gate valve to be blocked, making the gate valve inconvenient to use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a sealed gate valve to solve the problem that the existing gate valve proposed in the above background technology has impurities inside the medium when conveying the medium, and long-term use will cause impurities to accumulate at the water outlet and inside the gate valve, causing the gate valve to be blocked, making the gate valve inconvenient to use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealed gate valve, comprising a first valve body, a first through groove is provided on a top side of the first valve body, a second valve body is fixedly connected to the top side of the first valve body, a first threaded rod is rotatably connected between a bottom side of the first valve body and a side of the second valve body, a movable plate is threadedly connected to the outer side of the first threaded rod, a water inlet is fixedly connected to the left side of the first valve body, a water outlet is fixedly connected to the right side of the second valve body, and a sewage outlet is fixedly connected to the left side of the bottom of the first valve body.

[0006] Preferably, a second threaded rod is rotatably connected between the two sides of the first valve body, one end of the second threaded rod passes through the top of the first valve body, one side of the second threaded rod is fixedly connected to a second turntable, the outer side of the second threaded rod is threadedly connected to a baffle, and one side of the baffle is slidably connected to one side of the first valve body.

[0007] Preferably, a second through groove is provided on one side of the top of the water outlet, a sliding frame is slidably connected inside the second through groove, and a filter structure is inside the sliding frame.

[0008] Preferably, a connecting flange is fixedly connected to one side of the water inlet and one side of the water outlet.

[0009] Preferably, a sealing cover is threadedly connected to the outer side of the sewage outlet, and a sealing plug is fixedly connected to one side of the inner side of the sealing cover.

[0010] Preferably, one end of the first threaded rod passes through the top of the first valve body, and one side of the first threaded rod is fixedly connected to the first turntable.

[0011] Preferably, the length and width of the movable plate are smaller than the length and width of the second valve body, and the height of the baffle is greater than the height of the water outlet.

[0012] Preferably, a screw hole is provided on one side of the connecting flange, and a plurality of screw holes are provided.

[0013] Compared with the prior art, the utility model provides a sealed gate valve with the following beneficial effects:

[0014] 1. The utility model is provided with a sewage outlet. When impurities accumulate inside the gate valve, the second turntable is rotated to drive the second threaded rod to rotate. The outer side of the second threaded rod is threadedly connected with a baffle, thereby driving the baffle to move and block the water outlet. Water enters the water inlet, and the impurities inside the first valve body can be flushed and discharged from the sewage outlet.

[0015] 2. The utility model sets a sliding frame. When the medium passes through the water outlet, the interior of the sliding frame is a filter structure, which can filter and discharge impurities inside the medium. At the same time, the sliding frame is slidably connected to the second through groove, which is convenient for taking it out for cleaning.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the main structure of a sealed gate valve proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a first valve body of a sealed gate valve proposed by the utility model;

[0020] Figure 3 This is a schematic cross-sectional structure diagram of a sealed gate valve proposed by the utility model;

[0021] Figure 4 This is a side structural schematic diagram of a sealed gate valve proposed by the utility model;

[0022] In the figure: 1. first valve body; 2. first through groove; 3. second valve body; 4. first threaded rod; 5. movable plate; 6. water inlet; 7. water outlet; 8. sewage outlet; 9. second threaded rod; 10. second turntable; 11. baffle; 12. second through groove; 13. sliding frame; 14. connecting flange; 15. sealing cover; 16. sealing plug; 17. first turntable; 18. screw hole. DETAILED DESCRIPTION

[0023] 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a sealed gate valve, comprising a first valve body 1, a first through groove 2 is provided on one side of the top of the first valve body 1, a second valve body 3 is fixedly connected to one side of the top of the first valve body 1, a first threaded rod 4 is rotatably connected between one side of the bottom of the first valve body 1 and one side of the second valve body 3, a movable plate 5 is threadedly connected to the outer side of the first threaded rod 4, a water inlet 6 is fixedly connected to the left side of the first valve body 1, a water outlet 7 is fixedly connected to the right side of the second valve body 3, a sewage outlet 8 is fixedly connected to the left side of the bottom of the first valve body 1, and the first threaded rod 4 is rotated, and the movable plate 5 is threadedly connected to the outer side of the first threaded rod 4, which can drive the movable plate 5 to move up and down.

[0025] In the utility model, preferably, a second threaded rod 9 is rotatably connected between the two sides inside the first valve body 1, one end of the second threaded rod 9 passes through the top of the first valve body 1, a second turntable 10 is fixedly connected to one side of the second threaded rod 9, a baffle 11 is threadedly connected to the outer side of the second threaded rod 9, one side of the baffle 11 is slidably connected to one side inside the first valve body 1, and the second turntable 10 is rotated to drive the second threaded rod 9 to rotate, and the baffle 11 is threadedly connected to the outer side of the second threaded rod 9, thereby driving the baffle 11 to move up and down.

[0026] In the utility model, preferably, a second through groove 12 is provided on one side of the top of the water outlet 7, and a sliding frame 13 is slidably connected inside the second through groove 12. The interior of the sliding frame 13 is a filter structure. When the medium passes through the water outlet 7, the interior of the sliding frame 13 is a filter structure, which can filter impurities in the medium. At the same time, the sliding frame 13 is slidably connected to the second through groove 12, so it can be conveniently taken out for timely cleaning.

[0027] In the present invention, preferably, one side of the water inlet 6 and one side of the water outlet 7 are both fixedly connected with a connecting flange 14, which is convenient for connecting pipelines.

[0028] In the present invention, preferably, a sealing cover 15 is threadedly connected to the outside of the sewage outlet 8, and a sealing plug 16 is fixedly connected to one side of the sealing cover 15, which can effectively prevent the medium from leaking from the sewage outlet 8 when passing through the first valve body 1.

[0029] In the present invention, preferably, one end of the first threaded rod 4 passes through the top of the first valve body 1 , and one side of the first threaded rod 4 is fixedly connected to a first turntable 17 , so that the staff can rotate the first threaded rod 4 conveniently.

[0030] In the utility model, preferably, the length and width of the movable plate 5 are smaller than the length and width of the second valve body 3, and the height of the baffle 11 is greater than the height of the water outlet 7. When the first threaded rod 4 is rotated, the movable plate 5 can be accommodated inside the first valve body 1, and the baffle 11 can block the water outlet 7.

[0031] In the present invention, preferably, a screw hole 18 is provided on one side of the connecting flange 14, and a plurality of screw holes 18 are provided.

[0032] The working principle and use process of the utility model are as follows: when in use, when it is necessary to convey a medium, the second turntable 10 is rotated to drive the second threaded rod 9 to rotate. The outer side of the second threaded rod 9 is threadedly connected with a baffle 11, thereby driving the baffle 11 to move upward and leak out the water outlet 7. Then, the first turntable 17 is rotated to drive the first threaded rod 4 to rotate, thereby driving the movable plate 5 to move upward to convey the medium. When cleaning is needed, the second turntable 10 is rotated in the opposite direction to drive the baffle 11 to move downward to block the water outlet 7. The medium enters from the water inlet 6 to flush the inside of the first valve body 1. The sealing cover 15 can be opened to discharge the medium inside the first valve body 1.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed gate valve, comprising a first valve body (1), characterized in that: A first through groove (2) is provided on one side of the top of the first valve body (1); a second valve body (3) is fixedly connected to one side of the top of the first valve body (1); a first threaded rod (4) is rotatably connected between one side of the bottom of the first valve body (1) and one side of the second valve body (3); a movable plate (5) is threadedly connected to the outer side of the first threaded rod (4); a water inlet (6) is fixedly connected to the left side of the first valve body (1); a water outlet (7) is fixedly connected to the right side of the second valve body (3); and a sewage outlet (8) is fixedly connected to the left side of the bottom of the first valve body (1).

2. A sealed gate valve according to claim 1, characterized in that: A second threaded rod (9) is rotatably connected between the two sides inside the first valve body (1), one end of the second threaded rod (9) passes through the top of the first valve body (1), one side of the second threaded rod (9) is fixedly connected to a second rotating disk (10), the outer side of the second threaded rod (9) is threadably connected to a baffle plate (11), and one side of the baffle plate (11) is slidably connected to one side inside the first valve body (1).

3. A sealed gate valve according to claim 1, characterized in that: A second through groove (12) is provided on one side of the top of the water outlet (7), a sliding frame (13) is slidably connected inside the second through groove (12), and a filter screen structure is provided inside the sliding frame (13).

4. A sealed gate valve according to claim 1, characterized in that: A connecting flange (14) is fixedly connected to one side of the water inlet (6) and one side of the water outlet (7).

5. A sealed gate valve according to claim 1, characterized in that: The outer side of the sewage outlet (8) is threadedly connected to a sealing cover (15), and the inner side of the sealing cover (15) is fixedly connected to a sealing plug (16).

6. A sealed gate valve according to claim 1, characterized in that: One end of the first threaded rod (4) passes through the top of the first valve body (1), and one side of the first threaded rod (4) is fixedly connected to a first rotating disk (17).

7. A sealed gate valve according to claim 2, characterized in that: The length and width of the movable plate (5) are smaller than the length and width of the second valve body (3), and the height of the baffle plate (11) is greater than the height of the water outlet (7).

8. A sealed gate valve according to claim 4, characterized in that: A screw hole (18) is provided on one side of the connecting flange (14), and a plurality of screw holes (18) are provided.

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