Gate valve convenient to replace

Abstract

The utility model discloses a gate valve convenient to replace, which relates to the technical field of gate valves and comprises a gate valve body, pipelines and a filter box, the pipelines are positioned at two ends of the gate valve body and matched with the gate valve body, the filter box is positioned on the outer side of the gate valve body and fixedly connected with the gate valve body, and the filter box is communicated with the gate valve body. The device comprises a threaded rod, a sliding plate and a clamping block, the threaded rod is arranged in the sliding plate, a filter screen is arranged in the filter box, a sliding rail is fixedly installed in the filter box, and the top of the sliding rail is rotationally connected with a rotary knob, the device has the advantages that the sliding plate is driven to move in the filter box through operation of the threaded rod, and the sliding plate can drive the clamping block to move along with the sliding plate when moving; and then the clamping block can be driven to be clamped with the filter screen, so that the filter screen is convenient to mount and dismount, impurities attached to the outer side of the filter screen can be cleaned, the gate plate is prevented from being corroded by the impurities, and the service life of the gate plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a gate valve which is easy to replace. Background Art

[0002] With the development of society, pipeline connections are needed both in production and in life. In pipeline connections, pipeline connectors are needed. Among them, gate valves are one of the frequently used pipeline connectors. The gate valve is an opening and closing gate. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled.

[0003] A Chinese utility model patent with application number 201922424014.7 proposes a soft-sealed gate valve that is easy to replace the gate valve, which includes a pipeline, a movable groove is provided at the top of the pipeline, and a valve plate is slidably installed in the movable groove, a bolt hole is provided in the valve plate, and a threaded rod is spirally installed in the bolt hole, a limit plate is fixedly installed at the top of the movable groove, and a pressure block is fixedly installed at the top of the limit plate, the threaded rod penetrates the limit plate and the pressure block and extends to the top of the pressure block, and the threaded rod penetrates the limit plate and the pressure block and extends to the end above the pressure block where a first turntable is fixedly installed. The utility model has a novel structure, and the device solves the problem of harm to people caused by pipeline water pressure when the valve plate is replaced and it is necessary to manually find the valve of the external pipeline to close and disassemble it.

[0004] After being improved, the above device solves the problem of manual search for valves of external pipelines to close and dismantle when replacing the raft, which may cause harm to people due to water pressure in the pipeline. However, in actual use, some impurities will be mixed in the water flow, which will not only affect the water quality, but also some impurities will adhere to the gate plate, which will cause corrosion to the gate plate for a long time and reduce the service life of the gate plate. For this reason, we propose a gate valve that is easy to replace. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a gate valve that is easy to replace, solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a gate valve that is easy to replace, comprising a gate valve body, a pipeline and a filter box, the pipeline is located at both ends of the gate valve body and cooperates with it, the filter box is located at the outside of the gate valve body and is fixedly connected with it, the filter box is connected with the gate valve body, a filter screen is arranged inside the filter box, a slide rail is fixedly installed inside the filter box, the top of the slide rail is rotatably connected with a knob, the inside of the slide rail is rotatably connected with a transmission roller, the transmission roller is fixedly connected to the knob, the inside of the slide rail is rotatably connected with a worm, the worm is fixedly connected to the transmission roller, the inside of the filter box is rotatably connected with a worm wheel, the worm wheel is meshed with the worm, one end of the worm is fixedly connected with a threaded rod, the inside of the filter box is slidably connected with a sliding plate, the threaded rod penetrates the sliding plate and is threadedly connected with it, one end of the sliding plate is fixedly connected with a clamping block, and the clamping block is clamped with the filter screen.

[0007] Preferably, the filter screen is slidably connected to a slide rail, and the filter screen can be limited by the provided slide rail, and the filter screen is easy to install.

[0008] Preferably, a connecting flange 1 is fixedly installed on the outside of the pipeline, and a connecting flange 2 is fixedly installed on the outside of the gate valve body. The connecting flange 1 cooperates with the connecting flange 2. By cooperating with the setting of the connecting flange 1 and the connecting flange 2, it is convenient for the user to connect the gate valve body and the pipeline.

[0009] Preferably, the internal thread of the connecting flange 1 is connected with a plurality of connecting bolts, and the plurality of connecting bolts are all threadedly connected with the connecting flange 2, so that the gate valve body and the pipeline can be connected conveniently through the provided connecting bolts.

[0010] Preferably, a mounting groove 1 is provided on one side of the connecting flange 2, a sealing gasket is fixedly connected to the inside of the mounting groove 1, and a mounting groove 2 is provided on one side of the connecting flange 1, the mounting groove 2 cooperates with the sealing gasket, and the sealing performance of the connection between the gate valve body and the pipeline can be improved by cooperating between the mounting groove 2, the sealing gasket and the mounting groove 1.

[0011] Preferably, an adjusting disk is provided on the top of the gate valve body, and the flow rate of the water flow can be adjusted accordingly by the adjusting disk.

[0012] The utility model provides a gate valve that is easy to replace and has the following beneficial effects:

[0013] 1. The gate valve which is easy to replace, rotates the transmission roller by a knob, thereby driving the worm to operate through the transmission roller, and driving the worm wheel to operate through the meshing relationship between the worm and the worm wheel, thereby driving the threaded rod to operate through the worm wheel, and the operation of the threaded rod drives the sliding plate to move inside the filter box, and the sliding plate drives the clamping block to move when moving, and then can drive the clamping block to clamp with the filter screen, so as to facilitate the installation and disassembly of the filter screen, and then can clean the impurities attached to the outside of the filter screen, so as to avoid the corrosion of the gate plate by the impurities, thereby extending the service life of the gate plate.

[0014] 2. The gate valve which is easy to replace can connect the connecting flange 1 with the connecting flange 2 by means of the connecting bolts, so as to facilitate the connection between the gate valve body and the pipeline, and the sealing gasket arranged inside the connecting flange 2 can cooperate with the mounting groove 2 arranged inside the connecting flange 1, so as to avoid water leakage from the connection between the gate valve body and the pipeline, thereby improving the sealing of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of a connecting flange of the utility model;

[0017] Figure 3 This is a cross-sectional view of the filter box of the utility model;

[0018] Figure 4 This is a cross-sectional view of the slide rail of the utility model;

[0019] Figure 5 For this utility model Figure 4 Enlarged view of point A in the middle.

[0020] In the figure: 1. gate valve body; 2. pipeline; 3. connecting flange 1; 4. connecting flange 2; 5. filter box; 6. adjusting disk; 7. connecting bolt; 8. mounting slot 1; 9. sealing gasket; 10. mounting slot 2; 11. slide rail; 12. knob; 13. transmission roller; 14. filter screen; 15. worm; 16. worm wheel; 17. sliding plate; 18. clamping block; 19. threaded rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figures 1 to 5The utility model provides a technical solution: a gate valve that is easy to replace, including a gate valve body 1, a pipeline 2 and a filter box 5, the pipeline 2 is located at both ends of the gate valve body 1 and cooperates with it, the filter box 5 is located on the outside of the gate valve body 1 and is fixedly connected with it, the filter box 5 is connected with the gate valve body 1, a filter screen 14 is arranged inside the filter box 5, a slide rail 11 is fixedly installed inside the filter box 5, the top of the slide rail 11 is rotatably connected with a knob 12, the inside of the slide rail 11 is rotatably connected with a transmission roller 13, the transmission roller 13 is fixedly connected to the knob 12, the inside of the slide rail 11 is rotatably connected with a worm 15, the worm 15 is fixedly connected to the transmission roller 13, the inside of the filter box 5 is rotatably connected with a worm gear 16, the worm gear 16 is meshed with the worm 15, one end of the worm 15 is fixedly connected with a threaded rod 19, the inside of the filter box 5 is slidably connected with a slide The movable plate 17, the threaded rod 19 passes through the sliding plate 17 and is threadedly connected thereto, one end of the sliding plate 17 is fixedly connected with a clamping block 18, the clamping block 18 is clamped with the filter screen 14, the transmission roller 13 is rotated by the knob 12, thereby driving the worm 15 to operate through the transmission roller 13, and driving the worm gear 16 to operate through the meshing relationship between the worm 15 and the worm gear 16, thereby driving the threaded rod 19 to operate through the worm gear 16, and driving the sliding plate 17 to move inside the filter box 5 through the operation of the threaded rod 19, the sliding plate 17 will drive the clamping block 18 to move when moving, and then can drive the clamping block 18 to clamp with the filter screen 14, so as to facilitate the installation and disassembly of the filter screen 14, and then can clean the impurities attached to the outside of the filter screen 14, so as to avoid the corrosion of the gate plate by the impurities, thereby extending the service life of the gate plate.

[0023] The filter screen 14 is slidably connected to the slide rail 11. The slide rail 11 is provided to limit the filter screen 14 and facilitate the installation of the filter screen 14. An adjusting disk 6 is provided on the top of the gate valve body 1, and the flow rate of the water flow can be adjusted accordingly.

[0024] A connecting flange 3 is fixedly installed on the outer side of the pipeline 2, and a connecting flange 2 4 is fixedly installed on the outer side of the gate valve body 1. The connecting flange 3 cooperates with the connecting flange 2 4. By cooperating with the set connecting flange 13 and the connecting flange 2 4, it is convenient for the user to connect the gate valve body 1 and the pipeline 2. The internal thread of the connecting flange 3 is connected with multiple connecting bolts 7, and the multiple connecting bolts 7 are all threadedly connected with the connecting flange 2 4. The gate valve body 1 and the pipeline 2 are conveniently connected by the set connecting bolts 7. An installation groove 18 is provided on one side of the connecting flange 2 4, and a sealing gasket 9 is fixedly connected to the inside of the installation groove 8. An installation groove 2 10 is provided on one side of the connecting flange 3, and the installation groove 2 10 cooperates with the sealing gasket 9. By cooperating with the set installation groove 2 10, the sealing gasket 9 and the installation groove 18, the sealing performance of the connection between the gate valve body 1 and the pipeline 2 can be improved.

[0025] In summary, the gate valve which is easy to replace, when in use, connects the connecting flange 1 3 and the connecting flange 2 4 by means of the provided connecting bolts 7. When the connecting flange 1 3 and the connecting flange 2 4 are close to each other, the sealing gasket 9 provided inside the connecting flange 2 4 moves along with the connecting flange 2 4 toward the connecting flange 1 3 and moves to the inside of the mounting groove 2 10 provided inside the connecting flange 1 3, thereby sealing the connection between the gate valve body 1 and the pipeline 2, thereby preventing water from leaking from the connection between the gate valve body 1 and the pipeline 2, thereby improving the sealing performance of the device. After the connection is completed, the size of the water flow can be adjusted accordingly by means of the provided adjusting disk 6. During installation, one end of the filter box 5 provided on the outside of the gate valve body 1 is connected to the inflow end, thereby enabling the provided filter box 5 to filter impurities in the water flow. During operation, the water flow flows from the pipeline 2 into the inside of the gate valve body 1, and then enters into contact with the filter screen 14, filtering The net 14 filters the impurities mixed in the water flow. As the use time increases, the impurities filtered by the outer side of the filter net 14 increase and adhere to the surface of the filter net 14. At this time, the transmission roller 13 can be rotated by the knob 12, so that the worm 15 is driven to operate through the transmission roller 13, and the worm gear 16 is driven to operate through the meshing relationship between the worm 15 and the worm gear 16, and the tooth groups of the two worm gears 16 are in the same direction, so that their operating directions are the same, so that the threaded rod block 19 is driven to operate through the worm gear 16, and the operation of the threaded rod 19 drives the sliding plate 17 to move inside the filter box 5. When the sliding plate 17 moves, it will drive the clamping block 18 to move accordingly, and then it can drive the clamping block 18 to clamp or release the clamping block with the filter net 14, so as to facilitate the installation and disassembly of the filter net 14, and then the impurities attached to the outer side of the filter net 14 can be cleaned, so as to avoid the corrosion of the gate plate by impurities, thereby extending the service life of the gate plate.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gate valve that is easy to replace, comprising a gate valve body (1), a pipeline (2) and a filter box (5), characterized in that: The pipeline (2) is located at both ends of the gate valve body (1) and cooperates with it. The filter box (5) is located on the outside of the gate valve body (1) and is fixedly connected to it. The filter box (5) is connected to the gate valve body (1). A filter screen (14) is arranged inside the filter box (5). A slide rail (11) is fixedly installed inside the filter box (5). The top of the slide rail (11) is rotatably connected to a knob (12). The inside of the slide rail (11) is rotatably connected to a transmission roller (13). The transmission roller (13) is fixedly connected to the knob (12). The inside of the slide rail (11) The filter box (5) is rotatably connected to a worm (15), the worm (15) is fixedly connected to the transmission roller (13), the filter box (5) is internally rotatably connected to a worm wheel (16), the worm wheel (16) is meshingly connected to the worm (15), one end of the worm (15) is fixedly connected to a threaded rod (19), the filter box (5) is internally slidably connected to a sliding plate (17), the threaded rod (19) penetrates the sliding plate (17) and is threadedly connected thereto, one end of the sliding plate (17) is fixedly connected to a clamping block (18), the clamping block (18) is clamped to the filter screen (14).

2. A gate valve that is easy to replace according to claim 1, characterized in that: The filter screen (14) is slidably connected to the slide rail (11).

3. The gate valve that is easy to replace according to claim 1 is characterized in that: A connecting flange 1 (3) is fixedly installed on the outer side of the pipeline (2), and a connecting flange 2 (4) is fixedly installed on the outer side of the gate valve body (1), and the connecting flange 1 (3) cooperates with the connecting flange 2 (4).

4. A gate valve that is easy to replace according to claim 3, characterized in that: The internal thread of the connecting flange 1 (3) is connected with a plurality of connecting bolts (7), and the plurality of connecting bolts (7) are all threadedly connected with the connecting flange 2 (4).

5. The gate valve that is easy to replace according to claim 3 is characterized in that: A mounting groove (8) is provided on one side of the second connecting flange (4), a sealing gasket (9) is fixedly connected inside the first connecting groove (8), and a mounting groove (10) is provided on one side of the first connecting flange (3), the second mounting groove (10) cooperates with the sealing gasket (9).

6. The gate valve that is easy to replace according to claim 1 is characterized in that: An adjusting disk (6) is provided on the top of the gate valve body (1).

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