Hydrodynamic fixed cone valve

Abstract

The utility model belongs to the field of valves, and particularly relates to a hydrodynamic fixed cone valve to solve the problem that an existing fixed cone valve is inconvenient to drive a push-pull rod to enable a sleeve gate to move, the hydrodynamic fixed cone valve comprises a valve body, a valve seat, the sleeve gate and a hydraulic driving mechanism, a flow channel is formed in the valve body, and the valve seat is fixedly connected with the valve body; an annular water outlet is formed between the valve seat and the tail end of the flow channel of the valve body; the sleeve gate is movably arranged on the outer wall of the valve body in a sleeving mode, and the hydraulic driving mechanism is connected with the sleeve gate and can drive the sleeve gate to move in the axial direction of the tail end of the valve body so as to close or open the annular water outlet and adjust the opening degree of the annular water outlet. The hydraulic driving mechanism drives the sleeve gate to move to adjust the distance between the sleeve gate and the valve seat, so that the annular water outlet is closed or opened, the opening degree of the annular water outlet is adjusted, electrical equipment such as an electric cylinder is not needed, energy conservation and environmental protection are achieved, the labor intensity of workers is relieved, and the working efficiency is improved. And the applicability of the fixed cone valve in various environments is improved.

Description

Technical Field

[0001] The present application belongs to the field of valves, and more specifically, to a water-operated fixed cone valve. Background Art

[0002] Fixed cone valve is a valve that adjusts the flow rate by changing the distance between the sleeve gate and the fixed valve body. It can control the free discharge or continuous discharge flow control of the pipeline.

[0003] At present, fixed cone valves usually include a cylindrical fixed valve body, and a sleeve gate that can move along the axial direction of the valve body is arranged outside the valve body. Water flows into the valve body, then flows into the space formed between the valve body and the sleeve gate, and finally flows out. By installing a push-pull rod on the valve body, the push-pull rod pushes and pulls the sleeve gate to move forward and backward on the valve body along the flow direction of the water flow, and the distance between the valve seat and the sleeve gate is controlled to adjust the size of the discharge outlet, thereby adjusting the water flow rate.

[0004] The existing related technologies have the following problems: the push-pull rod movement is usually operated manually or driven by an electric cylinder. The labor intensity of the operator driving the push-pull rod movement is relatively high, and the use of the electric cylinder is restricted by many environmental factors, resulting in poor applicability. Utility Model Content

[0005] In order to facilitate driving a push-pull rod to move the sleeve gate to adjust the water flow rate of the valve, the present application provides a water-operated fixed cone valve.

[0006] The present application provides a hydraulic fixed cone valve adopting the following technical solution:

[0007] A hydraulic fixed cone valve comprises a valve body, a valve seat, a sleeve gate and a hydraulic driving mechanism, wherein a flow channel is provided inside the valve body, the valve seat is fixedly connected to the valve body, and an annular water outlet is formed between the valve seat and the end of the flow channel of the valve body; the sleeve gate is movably sleeved on the outer wall of the valve body, and the hydraulic driving mechanism is connected to the sleeve gate and can drive the sleeve gate to move axially along the end of the valve body to close or open the annular water outlet and adjust the opening of the annular water outlet.

[0008] By adopting the above technical solution, the hydraulic fixed cone valve drives the sleeve gate to move through the hydraulic drive mechanism to adjust the distance between the sleeve gate and the valve seat, thereby closing or opening the annular water outlet and adjusting the opening size of the annular water outlet. There is no need to use electrical equipment such as electric cylinders, which is energy-saving and environmentally friendly, reduces the labor intensity of staff, and improves the applicability of the fixed cone valve in various environments.

[0009] As a further preference, the inlet end of the valve body is fixedly connected with an elbow pipe for connecting a pipeline, the elbow pipe is fixedly connected with a support seat, and the hydraulic drive mechanism is arranged on the support seat.

[0010] By adopting the above technical solution, the hydraulic drive mechanism is installed on the support seat on the elbow pipe, so that a certain slope is formed between the hydraulic drive mechanism and the valve body, thereby being able to stably drive the sleeve gate to move axially along the end of the valve body.

[0011] As further preferred, the hydraulic drive mechanism includes a piston cylinder, a piston, a connecting rod, a balance beam, a push-pull rod and a reversing valve. The piston cylinder is fixedly connected to the support seat, and the piston is movably matched with the inner wall of the piston cylinder. The piston divides the piston cylinder into a first cavity and a second cavity. One end of the connecting rod is fixedly connected to the piston, and the other end of the connecting rod passes through the piston cylinder and is fixedly connected to the balance beam. One end of the push-pull rod is connected to the sleeve gate, and the other end of the push-pull rod is fixedly connected to the balance beam; the reversing valve is a two-position four-way reversing valve with a water inlet port, a water return port and two working ports. One of the working ports of the reversing valve is connected to the first cavity of the piston cylinder, and the other working port is connected to the second cavity of the piston cylinder. The water inlet port of the reversing valve is used to connect to a pressurized water source, and the water return port of the reversing valve is used to drain water outward.

[0012] By adopting the above technical scheme, a pressurized water source enters the reversing valve from the water inlet port, and when the working port connected to the first cavity is connected to the water inlet port, the working port connected to the second cavity is connected to the return port, so that the pressurized water source enters the first cavity, and the piston moves to one side of the second cavity; when the working port connected to the second cavity is connected to the water inlet port, the working port connected to the first cavity is connected to the return port, so that the pressurized water source enters the second cavity, and the piston moves to one side of the first cavity. By switching the reversing valve, the piston moves, thereby driving the connecting rod, the balance beam and the push-pull rod to move, and then driving the sleeve gate to move.

[0013] As further preferred, the water inlet port of the reversing valve is communicated with the elbow pipe, and the water return port of the reversing valve is communicated with the external air.

[0014] By adopting the above technical solution, a pressurized water source is provided through a pipeline, thereby realizing the movement of the piston, without setting up an additional pressurized water source, thus saving resources.

[0015] As further preferred, two push-pull rods are provided, and the two push-pull rods are symmetrically arranged on both sides of the valve body, and the outer wall of the elbow pipe is provided with a flange, and the flange is provided with a through hole that movably cooperates with the push-pull rod.

[0016] By adopting the above technical solution, two push-pull rods are connected to the two sides of the sleeve gate, and the push-pull rods pass through the through holes, so that the push-pull rods drive the sleeve gate to move more stably.

[0017] As a further preference, an annular sealing ring is provided between the inner wall of the sleeve gate and the outer wall of the valve body.

[0018] By adopting the above technical solution, the sealing between the sleeve gate and the valve body is improved by the annular sealing ring, thereby avoiding leakage between the sleeve gate and the valve body.

[0019] As a further preferred embodiment, a slider is fixedly connected to the inner wall of the sleeve gate, a guide rail is fixedly connected to the outer wall of the valve body, the guide rail is axially parallel to the end of the valve body, and the slider is slidably matched with the guide rail.

[0020] By adopting the above technical solution, when the sleeve gate moves, the slider moves on the guide rail on the valve body, further improving the stability of the movement of the sleeve gate.

[0021] As a further preference, one end of the valve seat close to the valve body is in a pointed cone shape.

[0022] By adopting the above technical solution, the water discharged from the valve body spreads toward the peripheral side after contacting the valve seat. The pointed cone shape of the valve seat can reduce the resistance of the water and make the water spray out in a ring shape.

[0023] As a further preferred embodiment, a sealing ring is detachably connected to the outer peripheral wall of the valve seat, and when the fixed cone valve is closed, the inner wall of the end of the sleeve gate abuts against the sealing ring.

[0024] By adopting the above technical solution, after the sleeve gate contacts the valve seat, the sealing ring improves the sealing between the valve seat and the sleeve gate, which can prevent water leakage and improve the use effect of the fixed cone valve.

[0025] As further preferred, the valve seat is fixedly connected to a fixing ring by bolts, and the sealing ring is arranged between the fixing ring and the valve seat.

[0026] By adopting the above technical solution, the fixing ring is connected to the valve seat by bolts, so that the sealing ring is fixed, and the sealing ring is easy to replace and install to maintain good sealing performance.

[0027] In summary, this application at least includes the following beneficial technical effects:

[0028] The hydraulic fixed cone valve drives the sleeve gate to move through a hydraulic drive mechanism to adjust the distance between the sleeve gate and the valve seat, thereby closing or opening the annular water outlet and adjusting the opening size of the annular water outlet. It does not require the use of electrical equipment such as electric cylinders, is energy-saving and environmentally friendly, reduces the labor intensity of staff, and improves the applicability of the fixed cone valve in various environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the hydraulic fixed cone valve according to the embodiment of the present application;

[0030] Figure 2 yes Figure 1 Schematic diagram of the cross-section structure along line AA;

[0031] Figure 3 yes Figure 2 Enlarged schematic diagram of part B in the middle.

[0032] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0033] 1. Valve body; 11. Flow channel; 12. Guide rail; 2. Valve seat; 21. Sealing ring; 22. Bolt; 23. Fixing ring; 3. Sleeve gate; 31. Slider; 4. Hydraulic drive mechanism; 41. Piston cylinder; 411. First cavity; 412. Second cavity; 42. Piston; 43. Connecting rod; 44. Balance beam; 45. Push-pull rod; 46. Reversing valve; 5. Elbow pipe; 51. Support seat; 52. Flange; 521. Perforation; 6. Annular sealing ring. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The following is combined with Figure 1-3 This application is described in further detail.

[0039] The embodiment of the present application discloses a water-operated fixed cone valve.

[0040] Reference Figure 1 The hydraulic fixed cone valve comprises a valve body 1, a valve seat 2, a sleeve gate 3, a hydraulic driving mechanism 4, an elbow pipe 5 and an annular sealing ring 6. A flow channel 11 is opened inside the valve body 1. The valve seat 2 is fixedly connected to the end of the valve body 1 through a connecting block, and an annular water outlet is formed between the valve seat 2 and the end of the flow channel 11 of the valve body 1. The elbow pipe 5 is fixedly connected to the inlet end of the valve body 1, and the pipeline is connected through the elbow pipe 5. A support seat 51 is fixedly connected to the elbow pipe 5, and the hydraulic driving mechanism 4 is fixedly installed on the support seat 51, wherein the sleeve gate 3 can be movably sleeved on the outer wall of the valve body 1, and the hydraulic driving mechanism 4 is connected to the sleeve gate 3, and can drive the sleeve gate 3 to move axially along the end of the valve body 1 to close or open the annular water outlet and adjust the opening of the annular water outlet.

[0041] In this embodiment, one end of the valve seat 2 close to the valve body 1 is in a pointed cone shape, which can reduce the resistance of water and make the water form a ring when spraying out from the annular water outlet.

[0042] To drive the movement of the sleeve gate 3, as a preferred embodiment, the hydraulic drive mechanism 4 includes a piston cylinder 41, a piston 42, a connecting rod 43, a balance beam 44, a push-pull rod 45 and a reversing valve 46. The piston cylinder 41 is fixedly connected to the support seat 51 on the elbow pipe 5, so that the piston cylinder 41 and the valve body 1 are located on the same axis. The piston 42 is movably matched with the inner wall of the piston cylinder 41, and the piston cylinder 41 is divided into a first cavity 411 and a second cavity 412 by the piston 42. One end of the connecting rod 43 is fixedly connected to the piston 42, and the other end of the connecting rod 43 passes through the piston cylinder 41 and is fixedly connected to the balance beam 44. Two push-pull rods 45 are provided, and the two push-pull rods 45 are symmetrically arranged on both sides of the valve body 1. One end of the push-pull rod 45 is connected to the sleeve gate 3, and the other end of the push-pull rod 45 is fixedly connected to the balance beam 44. When the piston 42 moves, it drives the connecting rod 43, the balance beam 44 and the push-pull rod 45 to move, thereby driving the sleeve gate 3 to move.

[0043] In order to make the piston 42 move in the piston cylinder 41, in this embodiment, the reversing valve 46 is a two-position four-way reversing valve having a water inlet port, a water return port and two working ports. One of the working ports of the reversing valve 46 is connected to the first cavity 411 of the piston cylinder 41, and the other working port is connected to the second cavity 412 of the piston cylinder 41. The water inlet port of the reversing valve 46 is used to connect to the pressurized water source, and the water return port of the reversing valve 46 is used to drain water outward. The pressurized water source enters the reversing valve 46 from the water inlet port. When the working port connected to the first cavity 411 is connected to the water inlet port, the working port connected to the second cavity 412 is connected to the water return port. The port is connected with the return water port, so that the pressurized water source enters the first cavity 411, and the piston 42 moves to one side of the second cavity 412; when the working port connected with the second cavity 412 is connected with the water inlet port, the working port connected with the first cavity 411 is connected with the return water port, so that the pressurized water source enters the second cavity 412, and the piston 42 moves to one side of the first cavity 411, and the piston 42 moves by switching the reversing valve 46, and the water inlet port of the reversing valve 46 is connected with the elbow pipe 5, and the return water port of the reversing valve 46 is connected with the external air, and the pressurized water source is provided through the pipeline, and there is no need to set up an additional pressurized water source.

[0044] In order to improve the movement stability of the sleeve gate 3, the outer wall of the elbow pipe 5 is provided with a flange 52 of an integrally formed structure, and the flange 52 is provided with a through hole 521 which is movably matched with the push-pull rod 45, and the push-pull rod 45 is passed through the through hole 521; the inner wall of the sleeve gate 3 is fixedly connected with a slider 31, and the outer wall of the valve body 1 is fixedly connected with a guide rail 12, the guide rail 12 is axially parallel to the end of the valve body 1, and the slider 31 is slidably matched with the guide rail 12, so that the movement of the sleeve gate 3 is more stable, and the opening and closing of the fixed cone valve can be better realized.

[0045] In order to improve the sealing performance of the fixed cone valve, an annular sealing ring 6 is arranged between the inner wall of the sleeve gate 3 and the outer wall of the valve body 1 to maintain the sealing performance between the sleeve gate 3 and the valve body 1 during the movement of the sleeve gate 3 to prevent water leakage; and the outer peripheral wall of the valve seat 2 is detachably connected with a sealing ring 21. When the fixed cone valve is closed, the inner wall at the end of the sleeve gate 3 abuts against the sealing ring 21. A fixing ring 23 is fixedly connected to the valve seat 2 by bolts 22. The sealing ring 21 is arranged between the fixing ring 23 and the valve seat 2, so that the sealing ring 21 is easy to replace and install to maintain good sealing performance.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hydraulic fixed cone valve, characterized in that: The invention comprises a valve body (1), a valve seat (2), a sleeve gate (3) and a hydraulic drive mechanism (4); a flow channel (11) is provided inside the valve body (1); the valve seat (2) is fixedly connected to the valve body (1), and an annular water outlet is formed between the valve seat (2) and the end of the flow channel (11) of the valve body (1); the sleeve gate (3) is movably sleeved on the outer wall of the valve body (1); the hydraulic drive mechanism (4) is connected to the sleeve gate (3) and can drive the sleeve gate (3) to move axially along the end of the valve body (1) to close or open the annular water outlet and adjust the opening degree of the annular water outlet; The hydraulic drive mechanism (4) comprises a piston cylinder (41), a piston (42) and a reversing valve (46); the piston (42) is movably matched with the inner wall of the piston cylinder (41); the piston (42) divides the interior of the piston cylinder (41) into a first cavity (411) and a second cavity (412); the reversing valve (46) is a two-position four-way reversing valve having a water inlet port, a water return port and two working ports; one of the working ports of the reversing valve (46) is connected to the first cavity (411) of the piston cylinder (41), and the other working port is connected to the second cavity (412) of the piston cylinder (41); the water inlet port of the reversing valve (46) is used to connect to a pressurized water source, and the water return port of the reversing valve (46) is used to discharge water to the outside.

2. The hydraulic fixed cone valve according to claim 1, characterized in that: The inlet end of the valve body (1) is fixedly connected to an elbow pipe (5) for connecting a pipeline, the elbow pipe (5) is fixedly connected to a support seat (51), and the hydraulic drive mechanism (4) is arranged on the support seat (51).

3. The hydraulic fixed cone valve according to claim 2, characterized in that: The hydraulic drive mechanism (4) comprises a connecting rod (43), a balance beam (44) and a push-pull rod (45); the piston cylinder (41) is fixedly connected to the support seat (51); one end of the connecting rod (43) is fixedly connected to the piston (42); the other end of the connecting rod (43) passes through the piston cylinder (41) and is fixedly connected to the balance beam (44); one end of the push-pull rod (45) is connected to the sleeve gate (3); and the other end of the push-pull rod (45) is fixedly connected to the balance beam (44).

4. The hydraulic fixed cone valve according to claim 3, characterized in that: The water inlet port of the reversing valve (46) is in communication with the elbow pipe (5), and the water return port of the reversing valve (46) is in communication with the external air.

5. The hydraulic fixed cone valve according to claim 3, characterized in that: Two push-pull rods (45) are provided, and the two push-pull rods (45) are symmetrically arranged on both sides of the valve body (1). The outer wall of the elbow pipe (5) is provided with a flange (52), and the flange (52) is provided with a through hole (521) that movably cooperates with the push-pull rod (45).

6. The hydraulic fixed cone valve according to claim 1, characterized in that: An annular sealing ring (6) is provided between the inner wall of the sleeve gate (3) and the outer wall of the valve body (1).

7. The hydraulic fixed cone valve according to claim 1, characterized in that: The inner wall of the sleeve gate (3) is fixedly connected with a slider (31), the outer wall of the valve body (1) is fixedly connected with a guide rail (12), the guide rail (12) is axially parallel to the end of the valve body (1), and the slider (31) and the guide rail (12) are slidably matched.

8. The hydraulic fixed cone valve according to claim 1, characterized in that: One end of the valve seat (2) close to the valve body (1) is in a pointed cone shape.

9. The hydraulic fixed cone valve according to any one of claims 1 to 8, characterized in that: The outer peripheral wall of the valve seat (2) is detachably connected to a sealing ring (21); when the fixed cone valve is closed, the inner wall of the end of the sleeve gate (3) abuts against the sealing ring (21).

10. The hydraulic fixed cone valve according to claim 9, characterized in that: The valve seat (2) is fixedly connected to a fixing ring (23) via bolts (22), and the sealing ring (21) is arranged between the fixing ring (23) and the valve seat (2).

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