High pressure difference regulating valve

Abstract

The utility model relates to the technical field of regulating valves, in particular to a high-pressure-difference regulating valve which comprises a high-pressure-difference regulating valve body and a circular ring, the circular ring is fixedly connected in the high-pressure-difference regulating valve body and is fixedly connected with a cylinder through a bolt, a cleaning mechanism is arranged in the cylinder, a filter screen is fixedly connected to the inner wall of the cylinder, and the inner wall of the filter screen is fixedly connected with a valve rod. And the high pressure difference regulating valve main body is fixedly connected with the outer wall of the first sleeve. The handle drives the worm to rotate, the worm drives the worm gear to rotate, the worm gear drives the threaded cylinder to rotate, the threaded cylinder drives the screw to move, the height of the screw in the vertical direction changes during movement, the screw drives the sliding rod to slide, the sliding rod drives the square column to move, the square column extrudes the spring, and the spring deforms. The force of the spring for driving the porous valve element to move downwards under the action of elasticity changes, then pressure adjustment of the high-pressure-difference adjusting valve is achieved, and when the high-pressure-difference adjusting valve is used, the pressure of the high-pressure-difference adjusting valve can be conveniently adjusted according to actual use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a high-pressure differential regulating valve. Background Art

[0002] The high pressure differential regulating valve is a self-operated pressure differential control valve that does not require external energy and relies on the pressure changes of the regulated medium for automatic adjustment.

[0003] For example, a porous valve core of a high-pressure differential regulating valve with patent number CN212407701U includes a high-pressure differential regulating valve body, a porous valve core and a limit column. A filter screen is fixed to the inner side of the high-pressure differential regulating valve body by fixing bolts, and a connecting pipe is fixed to the left side of the high-pressure differential regulating valve body by stud bolts. At the same time, mounting holes are provided on the right end face of the high-pressure differential regulating valve body and the left end face of the connecting pipe.

[0004] When the water flow passing through the high-pressure differential regulating valve body is large during use, an impact force will be generated. When the porous valve core is subjected to a large impact force, it will move upward, and the water will continue to flow to the right through the through hole. When the water flow becomes smaller, the impact force is insufficient, and the porous valve core can move downward under the action of the compression spring until the bottom of the porous valve core is engaged and connected to the fixed frame, and the water flow stops, making it convenient to control the opening and closing of the porous valve core. However, the pressure of the high-pressure differential regulating valve in the above document is fixed, which is not convenient for adjusting the pressure of the high-pressure differential regulating valve according to actual use requirements. At the same time, in the above document, the water flowing through is filtered through a filter net, and the filtered impurities will adhere to the surface of the filter net, affecting the passage of water. In the above document, the filter net can only be cleaned by disassembling the filter net, which is more troublesome to operate and inconvenient to clean the filter net. Utility Model Content

[0005] The utility model aims to solve the problem that it is inconvenient to adjust the pressure of the high-pressure differential regulating valve according to actual use requirements, and proposes a high-pressure differential regulating valve.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-pressure differential regulating valve is designed, comprising a high-pressure differential regulating valve body and a ring, wherein the ring is fixedly connected to the interior of the high-pressure differential regulating valve body, the ring is fixedly connected to a cylinder by bolts, a cleaning mechanism is arranged inside the cylinder, a filter is fixedly connected to the inner wall of the cylinder, the high-pressure differential regulating valve body is fixedly connected to the outer wall of a first sleeve, a second sleeve is fixedly connected above the first sleeve, a pressure regulating mechanism is arranged inside the second sleeve, and the left end of the high-pressure differential regulating valve body is fixedly connected to a connecting pipe by bolts.

[0008] Preferably, the pressure regulating mechanism includes a worm, the outer walls at both ends of the worm are rotatably connected to the second sleeve via bearings, a handle is fixedly connected to the end of the worm, the worm is meshingly connected to a worm wheel, the worm wheel is fixed to the outer wall of the threaded barrel, the outer wall of the threaded barrel is rotatably connected to the second sleeve via bearings, the internal thread of the threaded barrel is connected to a screw, the lower end of the screw is fixedly connected to a sliding rod, and the outer wall of the sliding rod is slidably connected to the first sleeve.

[0009] Preferably, the cleaning mechanism includes a support rod, which is fixed to the inner wall of the cylinder, and the support rod is rotatably connected to the outer wall of the rotating rod through a bearing, an impeller is fixed to the outer wall of the rotating rod, a connecting rod is fixed to the end of the rotating rod, a cleaning brush is fixed to the outer wall of the connecting rod, and the end of the cleaning brush is in contact with the filter.

[0010] Preferably, a fixing frame is fixedly connected to the interior of the high-pressure differential regulating valve body, and a through hole is provided inside the fixing frame.

[0011] Preferably, the fixing frame and the first sleeve are both slidably connected to the outer wall of the porous valve core, the interior of the porous valve core is slidably connected to a square column, and the upper end of the square column is fixedly connected to the sliding rod.

[0012] Preferably, a spring is arranged inside the porous valve core, and two ends of the spring are fixedly connected to the porous valve core and the square column respectively.

[0013] The utility model proposes a high-pressure differential regulating valve, which has the beneficial effects that: through the cooperation between the worm, the handle, the worm wheel, the threaded barrel, the screw and the sliding rod, the handle drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the threaded barrel to rotate, the threaded barrel drives the screw to move, the height of the screw in the vertical direction changes during movement, the screw drives the sliding rod to slide, the sliding rod drives the square column to move, the square column squeezes the spring, the spring is deformed, and the force of the spring driving the porous valve core to move downward under the elastic action changes, thereby realizing pressure regulation of the high-pressure differential regulating valve. When in use, it is convenient to adjust the pressure of the high-pressure differential regulating valve according to actual use requirements.

[0014] Through the cooperation between the support rod, rotating rod, impeller, connecting rod and cleaning brush, after the water flows through the multi-filter, the water flow impacts the impeller and drives the impeller to rotate, the impeller drives the rotating rod to rotate, the rotating rod drives the connecting rod to rotate, the connecting rod drives the cleaning brush to rotate, and the cleaning brush cleans the impurities attached to the surface of the filter to prevent the impurities from clogging the filter and affecting the water flow through the filter. The operation is relatively simple and the filter is easy to clean. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a structural sectional view of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the connection between the worm, the worm wheel and the handle in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the connection between the first sleeve, the sliding rod and the square column in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the connection between the transfer rod, the impeller and the connecting rod in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the connection between the cylinder and the support rod in the utility model.

[0021] In the figure: 1. high pressure difference regulating valve body, 2. ring, 3. pressure regulating mechanism, 301. worm, 302. handle, 303. worm wheel, 304. threaded barrel, 305. screw, 306. slide rod, 3a1. limit block, 4. cleaning mechanism, 401. support rod, 402. rotating rod, 403. impeller, 404. connecting rod, 405. cleaning brush, 5. cylinder, 6. filter screen, 7. first sleeve, 8. second sleeve, 9. fixing frame, 10. through hole, 11. porous valve core, 12. square column, 13. spring, 14. connecting pipe. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] Embodiment 1:

[0024] Refer to the attached Figure 1-6 : In this embodiment, a high-pressure differential regulating valve comprises a high-pressure differential regulating valve body 1 and a ring 2, the ring 2 is fixedly connected to the inside of the high-pressure differential regulating valve body 1, the ring 2 is fixedly connected to the cylinder 5 by bolts, the ring 2 and the cylinder 5 can be separated, a cleaning mechanism 4 is arranged inside the cylinder 5, the cleaning mechanism 4 cleans the multi-filter 6, the inner wall of the cylinder 5 is fixedly connected to the filter 6, the filter 6 filters the impurities in the water, the high-pressure differential regulating valve body 1 is fixedly connected to the outer wall of the first sleeve 7, the second sleeve 8 is fixedly connected above the first sleeve 7, the second sleeve 8 is arranged inside the pressure regulating mechanism 3, the pressure regulating mechanism 3 adjusts the downward force of the porous valve core 11;

[0025] The left end of the high-pressure differential regulating valve body 1 is fixedly connected to a connecting pipe 14 by bolts, a fixing frame 9 is fixedly connected to the interior of the high-pressure differential regulating valve body 1, a through hole 10 is arranged inside the fixing frame 9, the through hole 10 is convenient for water to pass through, the fixing frame 9 and the first sleeve 7 are both slidably connected to the outer wall of the porous valve core 11, the interior of the porous valve core 11 is slidably connected to a square column 12, the porous valve core 11 slides on the outer wall of the square column 12, the upper end of the square column 12 is fixedly connected to the slide rod 306, the slide rod 306 drives the square column 12 to move, a spring 13 is arranged inside the porous valve core 11, the model of the spring 13 is selected according to actual use requirements, and it can meet the work needs, the two ends of the spring 13 are respectively fixedly connected to the porous valve core 11 and the square column 12, and the spring 13 can drive the porous valve core 11 to move downward under the action of elasticity.

[0026] The pressure regulating mechanism 3 includes a worm 301, a handle 302, a worm wheel 303, a threaded barrel 304, a screw 305 and a slide rod 306. The outer walls of both ends of the worm 301 are rotatably connected to the second sleeve 8 through bearings. The end of the worm 301 is fixedly connected with a handle 302, the handle 302 drives the worm 301 to rotate, the worm 301 is meshed and connected with the worm wheel 303, the worm 301 drives the worm wheel 303 to rotate, the worm wheel 303 is fixedly connected to the outer wall of the threaded barrel 304, the worm wheel 303 drives the threaded barrel 304 to rotate, and the outer wall of the threaded barrel 304 is rotatably connected to the second sleeve 8 through bearings;

[0027] The internal thread of the threaded barrel 304 is connected with a screw rod 305, and the threaded barrel 304 drives the screw rod 305 to rotate. The lower end of the screw rod 305 is fixed with a slide rod 306, and the screw 305 drives the slide rod 306 to slide. The outer wall of the slide rod 306 is slidably connected with the first sleeve 7. The slide rod 306 is a square rod to prevent the screw 305 from rotating with the threaded barrel 304. The connection between the slide rod 306 and the first sleeve 7 is sealed.

[0028] The handle 302 drives the worm 301 to rotate, the worm 301 drives the worm wheel 303 to rotate, the worm wheel 303 drives the threaded barrel 304 to rotate, the threaded barrel 304 drives the screw 305 to move, the height of the screw 305 in the vertical direction changes during movement, the screw 305 drives the sliding rod 306 to slide, the sliding rod 306 drives the square column 12 to move, the square column 12 squeezes the spring 13, the spring 13 is deformed, and the force of the spring 13 driving the porous valve core 11 to move downward under the elastic action changes, thereby realizing pressure regulation of the high-pressure differential regulating valve. When in use, it is convenient to adjust the pressure of the high-pressure differential regulating valve according to actual use requirements.

[0029] The cleaning mechanism 4 includes a support rod 401, a rotating rod 402, an impeller 403, a connecting rod 404 and a cleaning brush 405. The support rod 401 is fixedly connected to the inner wall of the cylinder 5. The support rod 401 is rotatably connected to the outer wall of the rotating rod 402 through a bearing. The support rod 401 supports the rotating rod 402. The outer wall of the rotating rod 402 is fixedly connected to the impeller 403. The impeller 403 drives the rotating rod 402 to rotate.

[0030] The end of the rotating rod 402 is fixedly connected with a connecting rod 404, and the rotating rod 402 drives the connecting rod 404 to rotate. The outer wall of the connecting rod 404 is fixedly connected with a cleaning brush 405, and the connecting rod 404 drives the cleaning brush 405 to rotate. The end of the cleaning brush 405 is in contact with the filter screen 6, and the cleaning brush 405 cleans the filter screen 6;

[0031] After the water flows through the multi-filter screen 6, the water flow impacts the impeller 403 and drives the impeller 403 to rotate, the impeller 403 drives the rotating rod 402 to rotate, the rotating rod 402 drives the connecting rod 404 to rotate, the connecting rod 404 drives the cleaning brush 405 to rotate, and the cleaning brush 405 cleans the impurities attached to the surface of the filter screen 6 to prevent the impurities from clogging the filter screen 6 and affecting the water flow through the filter screen 6. The operation is relatively simple, and the filter screen 6 is easy to clean.

[0032] Working principle:

[0033] First, the high-pressure differential regulating valve body 1 and the connecting pipe 14 are fixed on the corresponding equipment respectively. Before the water flows into the high-pressure differential regulating valve body 1, it can be filtered by the filter screen 6. When the water flows into the high-pressure differential regulating valve body 1, the impact force generated will cause the porous valve core 11 to move upward, and the porous valve core 9 slides on the outer wall of the square column 12 to compress the spring 13. At this time, the porous valve core 11 is in an open state, and the water continues to flow to the right through the through hole 11. When the water flow becomes smaller, the impact force is insufficient, and the porous valve core 11 moves downward under the action of the spring 13. When the bottom of the porous valve core 11 is snap-connected to the fixing frame 9, the porous valve core 11 is in a closed state, and the water stops flowing.

[0034] Filter cleaning stage:

[0035] After the water flows through the multi-filter 6, the water flows impact the impeller 403 and drives the impeller 403 to rotate, the impeller 403 drives the rotating rod 402 to rotate, the rotating rod 402 drives the connecting rod 404 to rotate, the connecting rod 404 drives the cleaning brush 405 to rotate, the cleaning brush 405 cleans the impurities attached to the surface of the filter 6, and prevents the impurities from clogging the filter 6 and affecting the water flow through the filter 6. The operation is relatively simple, and the filter 6 is easy to clean.

[0036] Voltage regulation stage:

[0037] When the pressure of the high-pressure differential regulating valve needs to be adjusted, the handle 302 is turned, and the handle 302 drives the worm 301 to rotate, and the worm 301 drives the worm wheel 303 to rotate, and the worm wheel 303 drives the threaded barrel 304 to rotate, and the threaded barrel 304 drives the screw 305 to move. The height of the screw 305 in the vertical direction changes during movement, and the screw 305 drives the sliding rod 306 to slide, and the sliding rod 306 drives the square column 12 to move. The square column 12 squeezes the spring 13, and the spring 13 is deformed. Under the elastic action, the force of the spring 13 driving the porous valve core 11 to move downward changes, thereby realizing the pressure adjustment of the high-pressure differential regulating valve. When in use, it is convenient to adjust the pressure of the high-pressure differential regulating valve according to actual use requirements.

[0038] Embodiment 2:

[0039] Refer to the attached Figure 1-6 In this embodiment, a high pressure differential regulating valve is provided, and the pressure regulating mechanism 3 further comprises a limit block 3a1, which is fixedly connected to the upper end of the screw 305. The limit block 3a1 limits the movement of the screw 305 in the reverse direction, thereby preventing the upper end of the screw 305 from entering the interior of the threaded barrel 304.

[0040] The limiting block 3a1 limits the reverse movement of the screw rod 305 , thereby preventing the upper end of the screw rod 305 from entering the interior of the threaded barrel 304 .

[0041] Working principle:

[0042] The limit block 3a1 limits the reverse movement of the screw rod 305 , thereby preventing the upper end of the screw rod 305 from entering the interior of the threaded barrel 304 .

[0043] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A high pressure differential regulating valve, comprising a high pressure differential regulating valve body (1) and a ring (2), wherein the ring (2) is fixedly connected to the interior of the high pressure differential regulating valve body (1), and characterized in that: The ring (2) is fixedly connected to the cylinder (5) by bolts, a cleaning mechanism (4) is arranged inside the cylinder (5), a filter screen (6) is fixedly connected to the inner wall of the cylinder (5), the high-pressure differential regulating valve body (1) is fixedly connected to the outer wall of the first sleeve (7), a second sleeve (8) is fixedly connected above the first sleeve (7), a pressure regulating mechanism (3) is arranged inside the second sleeve (8), the left end of the high-pressure differential regulating valve body (1) is fixedly connected to a connecting pipe (14) by bolts, the pressure regulating mechanism (3) comprises a worm (301), the worm (30 1) The outer walls at both ends are rotatably connected to the second sleeve (8) through bearings, the end of the worm (301) is fixedly connected to a handle (302), the worm (301) is meshedly connected to a worm wheel (303), the worm wheel (303) is fixedly connected to the outer wall of the threaded barrel (304), the outer wall of the threaded barrel (304) is rotatably connected to the second sleeve (8) through bearings, the internal thread of the threaded barrel (304) is connected to a screw (305), the lower end of the screw (305) is fixedly connected to a slide rod (306), and the outer wall of the slide rod (306) is slidably connected to the first sleeve (7).

2. A high pressure differential regulating valve according to claim 1, characterized in that: The cleaning mechanism (4) comprises a support rod (401), the support rod (401) is fixedly connected to the inner wall of the cylinder (5), the support rod (401) is rotatably connected to the outer wall of a rotating rod (402) via a bearing, an impeller (403) is fixedly connected to the outer wall of the rotating rod (402), a connecting rod (404) is fixedly connected to the end of the rotating rod (402), a cleaning brush (405) is fixedly connected to the outer wall of the connecting rod (404), and the end of the cleaning brush (405) is in contact with the filter screen (6).

3. A high pressure differential regulating valve according to claim 2, characterized in that: A fixing frame (9) is fixedly connected to the interior of the high-pressure differential regulating valve body (1), and a through hole (10) is provided inside the fixing frame (9).

4. A high pressure differential regulating valve according to claim 3, characterized in that: The fixed frame (9) and the first sleeve (7) are both slidably connected to the outer wall of the porous valve core (11), and the interior of the porous valve core (11) is slidably connected to a square column (12), and the upper end of the square column (12) is fixedly connected to the sliding rod (306).

5. A high pressure differential regulating valve according to claim 4, characterized in that: A spring (13) is arranged inside the porous valve core (11), and two ends of the spring (13) are fixedly connected to the porous valve core (11) and the square column (12) respectively.

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