Stop valve

Abstract

The utility model provides a stop valve. The stop valve comprises a stop valve body and a filter cartridge arranged in the valve body; the net cleaning assembly is arranged on one side of the valve body, extends into the valve body and is used for cleaning the surface of the filter cartridge; the stop valve further comprises a valve rod, a handle and a valve clack. The valve rod is in threaded connection with the top of the valve body, and one end of the valve rod extends into the valve body; the valve clack is installed at one end of the valve rod, and the handle is installed at the other end of the valve rod. When the interior of the valve body needs to be cleaned, a water injection pipe is in butt joint with a pipeline, then water is input into the two second conveying pipes through the water injection pipe, then the water is sprayed to the filter cartridge through the second conveying pipes, and then impurities accumulated in front of the filter cartridge can be washed away outwards.

Description

Technical Field

[0001] This utility model relates to the field of gate valves, and in particular to a gate valve. Background Technology

[0002] A gate valve, also known as a stop valve, is a forced-seal valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to ensure a leak-proof seal. When the medium enters the valve from below the valve disc, the operating force must overcome the resistance generated by the friction of the valve stem and packing, and the thrust generated by the pressure of the medium. The force required to close the valve is greater than the force required to open it, so the valve stem diameter must be large; otherwise, the valve stem may bend. According to the connection method, there are three types: flange connection, threaded connection, and welded connection.

[0003] The prior art can be referenced in Chinese Utility Model Patent Publication No. CN207195785U, which is specifically a gate valve, including a valve body, a valve stem, and a valve cover. The valve cover is fitted onto the valve stem and connected to the valve body. The valve body has a valve port, and the valve stem has a valve disc adapted to the valve port. The valve disc includes a first fixed cavity and a second fixed cavity located at both ends of the valve disc. The valve stem has a first limiting plate adapted to the first fixed cavity, and a second limiting plate is located in the second fixed cavity. The first limiting plate and the second limiting plate are connected by bolts. A sliding plate is located below the first limiting plate and is placed in the first fixed cavity. The end of the first limiting plate facing the sliding plate has a spherical surface. The outer wall of the second fixed cavity is a first conical sealing surface. The valve port has a second conical sealing surface that abuts against the first conical sealing surface. The outer peripheral surface of the second limiting plate is also conical.

[0004] The aforementioned prior art, during use, allows for flexible rotation between the first limiting plate and the sliding plate, thus preventing damage caused by friction between the valve disc and the valve port. However, this prior art has the following drawbacks: after a period of use, impurities easily accumulate inside the valve body, causing blockages, and this prior art makes it inconvenient to clean the inside of the valve body. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a shut-off valve to solve the issues existing in the prior art.

[0006] To achieve the above objectives, the present invention provides a shut-off valve comprising: a shut-off valve, the shut-off valve comprising a valve body and a filter cylinder disposed inside the valve body;

[0007] A screen cleaning assembly is arranged on one side of the valve body and extends into the interior of the valve body for cleaning the surface of the filter cartridge;

[0008] The shut-off valve also includes a valve stem, a handle, and a valve disc;

[0009] The valve stem is screwed with the top of the valve body, and one end extends to the inside of the valve body;

[0010] The valve disc is installed on one end of the valve stem, and the handle is installed on the other end of the valve stem;

[0011] The inside of the valve body is provided with a protrusion.

[0012] Further, the cleaning net assembly comprises:

[0013] The water injection pipe is installed on the outer wall of the valve body and extends into the inside of the valve body;

[0014] Two second conveying pipes are oppositely arranged, one of which is communicated with the water injection pipe, and the other is communicated with the water injection pipe through the first conveying pipe, and one end of each of the two second conveying pipes faces the back of the filter cartridge.

[0015] Further, the cleaning net assembly further comprises:

[0016] The rotating rod is rotatably arranged on one side of the water injection pipe, one end of the rotating rod extends into the inside of the valve body and penetrates one of the second conveying pipes to extend into the inside of the other second conveying pipe;

[0017] The hemispherical block is arranged in the inside of the second conveying pipe, and the hemispherical block is connected with the rotating rod;

[0018] The sealing cylinder is arranged between the two second conveying pipes and connected with the filter cartridge, the sealing cylinder is communicated with the water injection pipe, and the first conveying pipe is communicated with the sealing cylinder.

[0019] Further, the cleaning net assembly further comprises:

[0020] The shaft rod is rotatably arranged in the inside of the sealing cylinder, and one end penetrates the filter cartridge;

[0021] The arc-shaped strips are arranged in two, respectively oppositely arranged on one end of the shaft rod;

[0022] The fan blades are arranged in multiple and arranged on the other end of the shaft rod around the circumference of the shaft rod.

[0023] Further, the valve body is provided with a slag cleaning assembly, one end of the slag cleaning assembly is connected with a communication pipe, and one end of the communication pipe is communicated with the water injection pipe.

[0024] Further, the slag cleaning assembly comprises:

[0025] The outer cylinder is arranged on the outer wall of the valve body and communicated with the inside of the valve body;

[0026] a tamping column, slidingly disposed inside the outer cylinder;

[0027] a first sealing plate, disposed on the tamping column;

[0028] a cleaning groove is formed on one side of the valve body.

[0029] Further, the slag cleaning assembly further comprises:

[0030] a blocking block, disposed on one end of the tamping column;

[0031] a second sealing plate, disposed on one end of the blocking block.

[0032] Further, an external thread is formed on the outer wall of the tamping column, and the tamping column is threadedly connected with the outer cylinder.

[0033] Compared with the prior art, the utility model has the beneficial effects that:

[0034] I. When the interior of the valve body needs to be cleaned, the water injection pipe is connected to the pipeline, then water is input into the interiors of the two second conveying pipes through the water injection pipe, and then the water is sprayed towards the filter cylinder through the second conveying pipes, so that the impurities accumulated in front of the filter cylinder can be washed outwards.

[0035] II. When the water flow enters the second conveying pipe through the sealing cylinder, the fan blades in the sealing cylinder will drive the shaft to rotate after receiving the impact of the water flow, and when the shaft rotates, the arc-shaped strip will be driven to move, so that the impurities adsorbed on the surface of the filter cylinder can be scraped off, thereby deepening the cleaning effect of the filter cylinder.

[0036] III. The tamping column is rotated to make the tamping column and the outer cylinder threadedly disconnected, then the tamping column is pushed to move towards the interior of the valve body, so that the blocking block moves out of the interior of the cleaning groove, the cleaning groove is opened, then the tamping column is continuously pushed to drive the first sealing plate to move, the impurities accumulated in front of the valve disc are pushed into the interior of the cleaning groove through the first sealing plate, the water in the interior of the water injection pipe enters the interior of the outer cylinder and is injected into the interior of the valve body, then the water is discharged outwards through the cleaning groove, thereby bringing out the impurities in the cleaning groove, thereby deepening the cleaning effect of the interior of the valve body and making the cleaning more comprehensive.

[0037] In order to better understand and implement, the utility model is described in detail below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is the first kind of three-dimensional structure schematic diagram of the utility model;

[0039] Figure 2 is the second kind of three-dimensional structure schematic diagram of the utility model;

[0040] Figure 3It is the internal structure schematic view of the valve body in the utility model;

[0041] Figure 4 It is the local structure schematic view of the valve body in the utility model;

[0042] Figure 5 It is the whole structure schematic view of the net cleaning assembly in the utility model;

[0043] Figure 6 It is the whole structure schematic view of the slag cleaning assembly in the utility model;

[0044] Figure 7 It is the sectional view of the outer cylinder in the utility model.

[0045] In the drawing,

[0046] 1, stop valve;101, valve body;102, valve stem;103, handle;104, valve disc;105, protruding block;106, filter cartridge;107, cleaning groove;

[0047] 2, net cleaning assembly;201, water injection pipe;202, rotating rod;203, sealing cylinder;204, first conveying pipe;205, second conveying pipe;206, shaft rod;207, arc-shaped strip;208, hemispherical block;209, fan blade;

[0048] 3, communication pipe;

[0049] 4, slag cleaning assembly;401, outer cylinder;402, ram;403, first sealing plate;404, plugging block;405, external thread;406, second sealing plate. DETAILED DESCRIPTION

[0050] In order to have a more clear understanding of the technical features, purposes and effects of the utility model, the specific implementation mode of the utility model will be explained by referring to the drawings, but the protection scope of the utility model is not limited to the following description.

[0051] Referring to Figures 1-7 As shown in the figure, a stop valve includes: stop valve 1, valve stem 102, handle 103, valve disc 104, valve body 101 and filter cartridge 106 arranged in the inside of valve body 101, the two ends of stop valve 1 are connected with pipelines, the impurities in water are filtered through filter cartridge 106, valve stem 102 is threadedly connected with the top of valve body 101, and one end extends to the inside of valve body 101, valve disc 104 is installed on one end of valve stem 102, handle 103 is installed on the other end of valve stem 102, the inside of valve body 101 is provided with protruding block 105

[0052] Net cleaning assembly 2 is arranged on one side of valve body 101 and extends to the inside of valve body 101, which is used for cleaning the surface of filter cartridge 106;

[0053] The net cleaning assembly 2 comprises:

[0054] The water injection pipe 201 is installed on the outer wall of the valve body 101 and extends into the interior of the valve body 101.

[0055] The second conveying pipe 205 is oppositely arranged, one of the second conveying pipes 205 is communicated with the water injection pipe 201, and the other second conveying pipe 205 is communicated with the water injection pipe 201 through the first conveying pipe 204, and one end of the two second conveying pipes 205 faces the back of the filter cartridge 106.

[0056] The technical scheme provided by the utility model, when in use, the pipeline is installed at both ends of the valve body 101 through flanges or threads, the water flow is blocked through the valve disc 104, and the impurities in the water are filtered through the filter cartridge 106. When the interior of the valve body 101 needs to be cleaned, the water injection pipe 201 is connected with the pipeline, then water is input into the interiors of the two second conveying pipes 205 through the water injection pipe 201, and then the second conveying pipes 205 spray towards the filter cartridge 106, so that the impurities accumulated in front of the filter cartridge 106 can be washed outwards.

[0057] Preferably, the rotating rod 202 is rotatably arranged at one side of the water injection pipe 201, one end of the rotating rod 202 extends into the interior of the valve body 101 and penetrates through one second conveying pipe 205 to extend into the interior of the other second conveying pipe 205, the hemispherical block 208 is arranged in the interior of the second conveying pipe 205, the hemispherical block 208 is connected with the rotating rod 202, the sealing cylinder 203 is arranged between the two second conveying pipes 205 and connected with the filter cartridge 106, the sealing cylinder 203 is communicated with the water injection pipe 201, the first conveying pipe 204 is communicated with the sealing cylinder 203, the shaft rod 206 is rotatably arranged in the interior of the sealing cylinder 203 and one end penetrates through the filter cartridge 106, the arc-shaped strip 207 is arranged with two and oppositely arranged on one end of the shaft rod 206, and the fan blade 209 is arranged with a plurality of and arranged on the other end of the shaft rod 206 at equal intervals around the circumference of the shaft rod 206.

[0058] Specifically, when the water flow enters the second conveying pipe 205 through the sealing cylinder 203, the fan blade 209 in the interior of the sealing cylinder 203 will drive the shaft rod 206 to rotate after receiving the impact of the water flow, and the arc-shaped strip 207 will be driven to move when the shaft rod 206 rotates, and the impurities adsorbed on the surface of the filter cartridge 106 can be scraped off through the arc-shaped strip 207, so that the cleaning effect of the filter cartridge 106 is improved.

[0059] Preferably, the valve body 101 is provided with a slag removal assembly 4, one end of the slag removal assembly 4 is connected with a communication pipe 3, one end of the communication pipe 3 communicates with the water injection pipe 201, the outer cylinder 401 is arranged on the outer wall of the valve body 101 and communicates with the inside of the valve body 101, the tamping column 402 is slidingly arranged in the inside of the outer cylinder 401, the first sealing plate 403 is arranged on the tamping column 402, the cleaning groove 107 is formed on one side of the valve body 101, the blocking block 404 is arranged at one end of the tamping column 402, the second sealing plate 406 is arranged at one end of the blocking block 404, the outer thread 405 is formed on the outer wall of the tamping column 402, and the tamping column 402 is threadedly connected with the outer cylinder 401.

[0060] Specifically, when cleaning the inside of the valve body 101, the tamping column 402 is rotated to be threadedly disconnected with the outer cylinder 401, then the tamping column 402 is pushed to move towards the inside of the valve body 101, so that the blocking block 404 moves out of the inside of the cleaning groove 107, the cleaning groove 107 is opened, then the tamping column 402 is continuously pushed to drive the first sealing plate 403 to move, and the impurities accumulated in front of the valve disc 104 are pushed into the inside of the cleaning groove 107 through the first sealing plate 403, so as to deepen the cleaning effect of the inside of the valve body 101 and clean more comprehensively. The water in the water injection pipe 201 can enter the inside of the outer cylinder 401 through the communication pipe 3 and be injected into the inside of the valve body 101, then be discharged outwards through the cleaning groove 107, so as to carry out the impurities in the cleaning groove 107, realize the discharging function, facilitate manual operation and have good cleaning effect.

[0061] Work flow: in use, the pipeline is installed at both ends of the valve body 101 through flanges or threads, the water flow is blocked through the valve disc 104, and the impurities in the water are filtered through the filter cylinder 106. When the inside of the valve body 101 needs to be cleaned, the water injection pipe 201 is connected with the pipeline, then water is input into the inside of the two second conveying pipes 205 through the water injection pipe 201, and then is sprayed towards the filter cylinder 106 through the second conveying pipe 205. When the water flow enters the second conveying pipe 205 through the sealing cylinder 203, the fan blades 209 in the sealing cylinder 203 are driven to rotate after receiving the impact of the water flow, and the arc-shaped strips 207 are driven to move when the shaft rod 206 rotates, so that the impurities adsorbed on the surface of the filter cylinder 106 are scraped off through the arc-shaped strips 207;

[0062] When the inside of the valve body 101 is cleaned, the ram 402 is rotated to disengage the ram 402 from the threaded connection with the outer cylinder 401, and then the ram 402 is pushed to move towards the inside of the valve body 101, so that the blocking block 404 moves out of the inside of the cleaning groove 107, the cleaning groove 107 is opened, and then the ram 402 is continuously pushed to drive the first sealing plate 403 to move, the impurities accumulated in front of the valve disc 104 are pushed into the inside of the cleaning groove 107 through the first sealing plate 403, the water in the water injection pipe 201 can enter the inside of the outer cylinder 401 through the communication pipe 3 and be injected into the inside of the valve body 101, and then be discharged outward through the cleaning groove 107, thereby bringing out the impurities in the cleaning groove 107.

[0063] The above only discloses preferred embodiments of the present application, and of course cannot limit the scope of the present application, therefore equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A stop valve characterized by comprising: The utility model relates to a valve, and particularly relates to a valve with a cleaning assembly and a deslagging assembly. The valve comprises a stop valve (1) and a cleaning assembly (2). The stop valve (1) comprises a valve body (101), a filter cartridge (106) arranged inside the valve body (101), the valve body (101), a valve stem (102), a handle (103), and a valve disc (104). The valve stem (102) is threadedly connected to the top of the valve body (101) and extends into the valve body (101). The valve disc (104) is mounted on one end of the valve stem (102), and the handle (103) is mounted on the other end of the valve stem (102). The valve body (101) is internally provided with a protrusion (105). The cleaning assembly (2) comprises a water injection pipe (201), a first conveying pipe (204), two second conveying pipes (205), a rotating rod (202), a sealing cartridge (203), a shaft rod (206), an arc-shaped strip (207), and a plurality of fan blades (209).

2. A globe valve according to claim 1, wherein The water injection pipe (201) is mounted on the outer wall of the valve body (101) and extends into the valve body (101). The first conveying pipe (204) is in communication with the water injection pipe (201). The two second conveying pipes (205) are oppositely arranged.

3. A globe valve according to claim 2, wherein One of the two second conveying pipes (205) is in communication with the water injection pipe (201), and the other second conveying pipe (205) is in communication with the water injection pipe (201) through the first conveying pipe (204). The rotating rod (202) is rotatably arranged on one side of the water injection pipe (201). One end of the rotating rod (202) extends into the valve body (101) and penetrates through one of the second conveying pipes (205) to extend into the other second conveying pipe (205). The sealing cartridge (203) is arranged between the two second conveying pipes (205) and is connected with the filter cartridge (106).

4. A globe valve according to claim 3, wherein The sealing cartridge (203) is in communication with the water injection pipe (201), and the first conveying pipe (204) is in communication with the sealing cartridge (203). The shaft rod (206) is rotatably arranged in the sealing cartridge (203) and penetrates through the filter cartridge (106) at one end. The arc-shaped strip (207) is arranged on one end of the shaft rod (206). The plurality of fan blades (209) are arranged on the other end of the shaft rod (206) at equal intervals in the circumferential direction of the shaft rod (206).

5. A globe valve according to claim 2, wherein: The valve body (101) is provided with a deslagging assembly (4).

6. A globe valve according to claim 5, wherein One end of the deslagging assembly (4) is connected with a communication pipe (3). The communication pipe (3) is in communication with the water injection pipe (201). The deslagging assembly (4) comprises an outer cartridge (401) and a tamping column (402). The outer cartridge (401) is arranged on the outer wall of the valve body (101) and is in communication with the inside of the valve body (101). The tamping column (402) is slidably arranged in the outer cartridge (401). A first sealing plate (403) is arranged on the tamping column (402); A cleaning groove (107) is arranged on one side of the valve body (101).

7. A stop valve according to claim 6, characterised in that The slag removal assembly (4) further comprises: A blocking block (404) is arranged at one end of the tamping column (402); A second sealing plate (406) is arranged at one end of the blocking block (404).

8. The stop valve according to claim 6, characterized in that: An external thread (405) is arranged on the outer wall of the tamping column (402), and the tamping column (402) is threadedly connected with the outer cylinder (401).

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