Hydraulic valve with liquid accumulation prevention structure

Abstract

The utility model relates to the technical field of hydraulic valves, in particular to a hydraulic valve with a liquid accumulation prevention structure. A hydraulic valve with a liquid accumulation prevention structure comprises a valve body, a piston is arranged at the left end in the valve body, a liquid inlet channel is formed in the upper end of the valve body, the liquid inlet channel and a liquid outlet channel are arranged in a staggered mode, a liquid inlet pipe is connected to the liquid inlet channel, the left end of the valve body is connected and communicated with a left pipeline, and the left pipeline is communicated with the liquid inlet channel. The lower end of the left portion of the piston is fixedly connected with a connecting rod, the upper end of the connecting rod is fixedly connected with a round blocking piece, the round blocking piece penetrates through the middle of the left pipeline, and the diameter of the round blocking piece is matched with that of the left pipeline. The piston drives the circular blocking piece, the left pipeline is automatically closed when the liquid outlet channel is communicated with the liquid inlet channel, the circulation amount of the left pipeline is reduced, liquid accumulation is prevented, the small liquid drainage pipe and the liquid drainage valve are arranged, accumulated liquid can be conveniently and timely drained, hydraulic elements are protected, and a hydraulic system is orderly operated.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valves, in particular to a hydraulic valve with a liquid accumulation prevention structure. Background Art

[0002] A hydraulic valve is an automated component operated by pressurized oil. It is controlled by the pressure oil of a pressure regulating valve and is usually used in combination with an electromagnetic pressure regulating valve. It is suitable for equipment and piping systems that need to reduce the temperature of water, non-corrosive fluids (gasoline, kerosene) and gases to a certain range. By adjusting the inlet pressure to a required outlet pressure value, it is used to remotely control the on-off of the oil, gas and water pipeline systems of hydropower stations.

[0003] However, hydraulic valves are prone to fluid accumulation during long-term use, resulting in reduced system performance and even damage to hydraulic components. Existing anti-fluid accumulation designs still have fluid accumulation, resulting in slower hydraulic valve response speed, reduced control accuracy, and even system failure. Therefore, there is an urgent need for a hydraulic valve with an anti-fluid accumulation structure to solve the existing problems. Utility Model Content

[0004] In order to overcome the above problems, the utility model provides a hydraulic valve with a liquid accumulation prevention structure.

[0005] A hydraulic valve with an anti-liquid accumulation structure is arranged on a base, a controller is installed at the left end of the base, a hydraulic output pipe is installed on the base through a fixed plate, a valve body is arranged above the middle of the hydraulic output pipe, the lower end of the valve body is connected with the hydraulic output pipe through a liquid outlet channel, a piston is arranged at the left end of the valve body, an extrusion column is arranged at the right end of the valve body, a spring is arranged between the extrusion column and the valve body, a liquid inlet channel is opened at the upper end of the valve body, the liquid inlet channel and the liquid outlet channel are staggered, the liquid inlet pipe is connected to the liquid inlet channel, the left end of the valve body is connected and connected with a left pipeline, the left pipeline is connected with the liquid inlet channel, a connecting rod is fixedly connected to the lower end of the left part of the piston, a circular baffle is fixedly connected to the upper end of the connecting rod, the circular baffle is penetrated through the middle of the left pipeline, and the diameter of the circular baffle matches the diameter of the left pipeline.

[0006] Optionally, a small drainage tube is connected to the lower end of the left pipeline, and a drainage valve is provided on the small drainage tube.

[0007] Optionally, a cylinder is installed on the outer side of the front end of the valve body, a pull rod is connected to the cylinder, and the pull rod is fixedly connected to the connecting rod.

[0008] Optionally, a plurality of flow divider pipes are connected to the front end of the valve body, a plurality of pressure divider pipes are connected to the left pipeline, and the flow divider pipes and the pressure divider pipes are respectively connected to the hydraulic output pipe.

[0009] Optionally, a pressure gauge is provided at the right end of the hydraulic output pipe.

[0010] Optionally, a C-shaped through groove is opened in the middle of the left pipeline, the left end of the C-shaped through groove is open, the circular baffle is located in the C-shaped through groove, and a seal is arranged between the left pipeline and the circular baffle.

[0011] The utility model has the following advantages: 1. The utility model drives the circular baffle through the piston to automatically close the left pipeline when the liquid outlet channel is connected to the liquid inlet channel, thereby reducing the flow rate of the left pipeline and preventing liquid from flowing into the bottom of the left pipeline and causing liquid accumulation. It can effectively protect the hydraulic components and is conducive to the orderly operation of the hydraulic system.

[0012] 2. The utility model is provided with a cylinder to drive the connecting rod, which can quickly and accurately control the circular baffle to timely close or unclog the left pipeline, thereby effectively preventing the generation of liquid accumulation and improving the control accuracy of the hydraulic valve.

[0013] 3. The utility model can conveniently and timely discharge the accumulated liquid through the small discharge tube and the discharge valve, ensure the internal cleanliness of the hydraulic valve, and improve the system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the cylinder, the pull rod and the connecting rod of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the circular baffle, the liquid discharge pipe and the liquid discharge valve of the utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the flow divider and the pressure divider of the utility model.

[0018] Figure numerals: 1: base, 2: fixing plate, 3: controller, 4: hydraulic output pipe, 41: liquid outlet channel, 42: pressure gauge, 5: valve body, 51: liquid inlet channel, 52: diverter pipe, 6: liquid inlet pipe, 7: left pipeline, 71: pressure dividing pipe, 8: piston, 9: extrusion column, 10: spring, 11: cylinder, 12: pull rod, 13: connecting rod, 14: circular baffle, 15: small discharge tube, 16: discharge valve. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described below in conjunction with the accompanying drawings.

[0020] Embodiment: A hydraulic valve with a liquid accumulation prevention structure, such as Figure 1-4As shown, it is arranged on the base 1, and a controller 3 is installed on the left end of the base 1. A hydraulic output pipe 4 is installed on the base 1 through a fixing plate 2. The hydraulic output pipe 4 is electrically connected to the controller 3. A valve body 5 is provided on the upper middle part of the hydraulic output pipe 4. The lower end of the valve body 5 is connected to the hydraulic output pipe 4 through a liquid outlet channel 41. A chamber is provided inside the valve body 5. A piston 8 is provided at the left end of the valve body 5. A circular piece is provided on the left part of the piston 8. The diameter of the circular piece matches the chamber of the valve body 5. An extrusion column 9 is provided at the right end of the valve body 5. A spring 10 is provided between the extrusion column 9 and the valve body 5. A liquid inlet channel 51 is provided on the upper end of the valve body 5. The liquid inlet channel 51 and the liquid outlet channel 41 are connected to each other. The channel 41 is staggered, and the liquid inlet channel 51 is connected to the liquid inlet pipe 6 for communicating with external liquid. The left end of the valve body 5 is connected to the left pipeline 7, and the left pipeline 7 is communicated with the chamber inside the valve body 5. The upper end of the left pipeline 7 is communicated with the liquid inlet channel 51, and the upper end of the left pipeline 7 is located inside the valve body 5. A connecting rod 13 is fixedly connected to the lower end of the circular part of the piston 8, and a circular baffle 14 is fixedly connected to the upper end of the connecting rod 13. A C-shaped through groove is provided in the middle of the left pipeline 7, and the left end of the C-shaped through groove is open. The circular baffle 14 is penetrated in the C-shaped through groove. The left pipeline 7 and the circular baffle 14 are sealed, and the diameter of the circular baffle 14 matches the diameter of the left pipeline 7.

[0021] In the initial state, the squeezing column 9 is located directly above the liquid outlet channel 41, the liquid inlet channel 51 and the liquid outlet channel 41 are not in circulation, the piston 8 is located at the leftmost end of the valve body 5, the spring 10 is in a relaxed state, and the circular baffle 14 is located at the left end of the C-shaped through groove of the left pipeline 7. When working, the controller 3 controls the external fluid to be introduced from the liquid inlet pipe 6 and flows into the internal chamber of the valve body 5 through the liquid inlet channel 51. Due to the obstruction of the squeezing column 9, the fluid accumulates in the chamber and enters the left pipeline 7, and then flows into the left end chamber of the valve body 5. According to the parameter value set by the external fluid, the fluid pushes the piston 8 and the squeezing column 9 to move a certain distance to the right, and compresses the spring 10. The connecting rod 13 drives the circular baffle 14 to translate to the right, squeezing The pressure column 9 releases the obstruction on the liquid outlet channel 41, so that the liquid outlet channel 41 and the liquid inlet channel 51 are connected in the valve body 5, and the fluid flows from the liquid outlet channel 41 into the hydraulic output pipe 4. When the circular baffle 14 closes the left pipeline 7, the liquid outlet channel 41 and the liquid inlet channel 51 achieve maximum connectivity. The circular baffle 14 blocks the fluid from continuing to flow into the lower section of the left pipeline 7 to cause liquid accumulation. The remaining fluid in the lower section of the left pipeline 7 flows to the liquid outlet channel 41 under the action of the piston 8, so that the hydraulic valve completes the control of the fluid pressure, flow and direction; the external fluid is stopped from entering through the controller 3, and the spring 10 automatically resets, so that the piston 8 and the squeeze column 9 return to their initial positions, and the circular baffle 14 releases the blockage of the left pipeline 7.

[0022] like Figure 1 and Figure 4 As shown, a small drain pipe 15 is connected to the lower end of the left pipeline 7, and a drain valve 16 is provided on the small drain pipe 15.

[0023] The drain valve 16 is used to open the drain pipe 15 to drain the accumulated liquid and prevent damage to the hydraulic system.

[0024] like Figure 2 and Figure 3 As shown, a cylinder 11 is installed on the outer side of the front end of the valve body 5, and a pull rod 12 is connected to the cylinder 11, and the pull rod 12 is fixedly connected to the connecting rod 13.

[0025] The cylinder 11 drives the pull rod 12 to control the precise movement of the circular baffle 14, so as to achieve rapid closure and unblocking of the road pipeline 7 and prevent the formation of liquid accumulation.

[0026] like Figure 1 and Figure 4 As shown, the front end of the valve body 5 is connected to a plurality of flow dividers 52, and the left pipeline 7 is connected to a plurality of pressure dividers 71, and the flow dividers 52 and the pressure dividers 71 are respectively connected to the hydraulic output pipe 4. A pressure gauge 42 is provided at the right end of the hydraulic output pipe 4.

[0027] The flow divider 52 and the pressure divider 71 can adjust the fluid flow and pressure, and the pressure gauge 42 can monitor the pressure in the hydraulic output pipe 4 to ensure the safe and stable operation of the hydraulic system.

Claims

1. A hydraulic valve with a liquid accumulation prevention structure, arranged on a base (1), a controller (3) is installed at the left end of the base (1), a hydraulic output pipe (4) is installed on the base (1) through a fixing plate (2), a valve body (5) is provided at the upper middle part of the hydraulic output pipe (4), the lower end of the valve body (5) is connected to the hydraulic output pipe (4) through a liquid outlet channel (41), a piston (8) is provided at the left end of the valve body (5), an extrusion column (9) is provided at the right end of the valve body (5), and a spring (10) is provided between the extrusion column (9) and the valve body (5), wherein: The upper end of the valve body (5) is provided with a liquid inlet channel (51), the liquid inlet channel (51) and the liquid outlet channel (41) are arranged in a staggered manner, the liquid inlet channel (51) is connected to a liquid inlet pipe (6), the left end of the valve body (5) is connected to and communicated with a left pipeline (7), the left pipeline (7) is communicated with the liquid inlet channel (51), the lower end of the left part of the piston (8) is fixedly connected to a connecting rod (13), the upper end of the connecting rod (13) is fixedly connected to a circular baffle (14), the circular baffle (14) is arranged through the middle of the left pipeline (7), and the diameter of the circular baffle (14) matches the diameter of the left pipeline (7).

2. The hydraulic valve with a liquid accumulation prevention structure according to claim 1, characterized in that: The lower end of the left pipeline (7) is connected to a small liquid discharge tube (15), and a liquid discharge valve (16) is provided on the small liquid discharge tube (15).

3. The hydraulic valve with a liquid accumulation prevention structure according to claim 1, characterized in that: A cylinder (11) is installed on the outside of the front end of the valve body (5), a pull rod (12) is connected to the cylinder (11), and the pull rod (12) is fixedly connected to a connecting rod (13).

4. The hydraulic valve with a liquid accumulation prevention structure according to claim 1, characterized in that: The front end of the valve body (5) is connected to a plurality of flow divider pipes (52), the left pipeline (7) is connected to a plurality of pressure divider pipes (71), and the flow divider pipes (52) and the pressure divider pipes (71) are respectively connected to the hydraulic output pipe (4).

5. The hydraulic valve with a liquid accumulation prevention structure according to claim 1, characterized in that: A pressure gauge (42) is provided at the right end of the hydraulic output pipe (4).

6. The hydraulic valve with a liquid accumulation prevention structure according to claim 1, characterized in that: A C-shaped through groove is provided in the middle of the left pipeline (7), the left end of the C-shaped through groove is open, a circular baffle (14) is located in the C-shaped through groove, and a sealing arrangement is provided between the left pipeline (7) and the circular baffle (14).

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