Multi-way valve with oil pressure adjusting function

Abstract

The multi-way valve with the oil pressure adjusting function comprises a multi-way valve body, a hydraulic pump is installed at one end of the multi-way valve body, a supporting plate is fixedly installed at the bottom of one end of the hydraulic pump, a pressure relief pipe is installed at the top of the supporting plate, and a telescopic rod, a piston plate and a spring are installed in the pressure relief pipe. According to the multi-way valve, when the oil pressure value in the multi-way valve needs to be adjusted, the pressure monitoring value of the pressure sensor is set through the control panel, and when the pressure is higher than the set pressure value, the control panel automatically controls the electric push rod to be started to pull the telescopic rod to move towards one side; and when the pressure sensor detects that the pressure of the electric push rod is smaller than a set value, the electric push rod stops running, so that the oil pressure is controlled within a set range, and the oil pressure adjusting function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-way valves, in particular to a multi-way valve with an oil pressure regulating function. Background Art

[0002] A multi-way valve refers to a multi-way combination valve consisting of two or more reversing valves as the main body, and auxiliary devices such as safety valves, one-way valves, and oil replenishing valves are added according to different working requirements. Its structure includes components such as a control valve core, a valve body, a hydraulic oil circuit, and a spring. The valve core is the core component, which is responsible for cutting off or opening the fluid channel, and complements the control device to realize the hydraulic control function. The valve body is mainly responsible for the flow direction of the hydraulic oil and plays a control role. The spring plays a shock absorbing role to ensure the stable operation of the hydraulic system.

[0003] In order to prevent the oil pressure of the multi-way valve from being too high, a safety valve is generally installed. When the oil pressure is too high, the safety valve automatically starts to release the pressure to ensure the stability of the oil pressure. However, the safety valve only controls the maximum pressure of the multi-way valve and cannot set and adjust the pressure inside the multi-way valve to stabilize the oil pressure within the set pressure range.

[0004] Therefore, a multi-way valve with oil pressure regulating function is proposed to solve the above problems. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a multi-way valve with an oil pressure regulating function, aiming to solve the problem that when the oil pressure is too high, the safety valve automatically starts to release the pressure to ensure the stability of the oil pressure under the prior art, but the safety valve only controls the maximum pressure of the multi-way valve and cannot regulate the pressure inside the multi-way valve to stabilize the oil pressure within the set pressure range.

[0007] 2. Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A multi-way valve with an oil pressure regulating function comprises a multi-way valve, a hydraulic pump is installed at one end of the multi-way valve, a support plate is fixedly installed at the bottom of one end of the hydraulic pump, a pressure relief pipe is installed on the top of the support plate, a telescopic rod, a piston plate and a spring are installed inside the pressure relief pipe, an electric push rod is connected to one end of the pressure relief pipe, one end of the electric push rod extends into the interior of the pressure relief pipe and is connected to one end of the telescopic rod, a protective cover is installed at one end of the electric push rod, a pressure sensor is embedded in the end of the electric push rod located inside the protective cover, a control panel is installed on the top of the protective cover, the control panel is electrically connected to the electric push rod and the pressure sensor, a pressure relief pipe is installed at the other end of the pressure relief pipe, and one end of the pressure relief pipe is communicated with the interior of the hydraulic pump.

[0010] As a preferred solution of the utility model, an oil return tank is installed at one end of the multi-way valve away from the hydraulic pump, and the hydraulic oil inside the hydraulic pump will flow back to the oil return tank through the pipeline when flowing.

[0011] As a preferred solution of the utility model, an oil pressure relief port is installed at one end of the hydraulic pump, an oil external thread is provided on the outer ring surface of the pressure relief port, and a sealing gasket is fitted on one end of the pressure relief port.

[0012] As a preferred solution of the utility model, a sealing ring is installed at one end of the pressure relief pipe, and a nut is sleeved and slidably installed on the outer ring surface of the pressure relief pipe. After one end of the pressure relief pipe is fitted with a sealing gasket on the pressure relief port through the sealing ring, the nut is threadedly connected to the pressure relief port, and the other end of the pressure relief pipe is communicated with the interior of the pressure relief cylinder.

[0013] As a preferred solution of the utility model, the telescopic rod is slidably installed inside the pressure relief cylinder, one end of the telescopic rod is installed with a piston plate at the opening of the pressure relief cylinder, and a spring is sleeved and installed between one end of the fixed section of the telescopic rod and the piston plate.

[0014] As a preferred solution of the utility model, there is a gap of 7 cm between one end of the telescopic rod and one end inside the pressure relief cylinder. When the pressure applied to the piston plate is greater than the maximum oil pressure value of the multi-way valve, the piston plate will squeeze the spring to shrink the telescopic rod.

[0015] As a preferred solution of the utility model, a circular hole is opened at one end of the pressure relief cylinder, and one end of the electric push rod passes through the circular hole and is fixedly connected to one end of the telescopic rod. The telescopic length value of the electric push rod is ±7cm.

[0016] As a preferred solution of the utility model, one end of the electric push rod is clamped inside the protective cover, and one end of the electric push rod can rotate inside the protective cover, and one side of the pressure sensor is in contact with one end inside the protective cover.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model monitors the pressure on the electric push rod by means of a pressure sensor. When the oil pressure value inside the multi-way valve needs to be adjusted, the pressure monitoring value of the pressure sensor is first set through the control panel. The hydraulic oil inside the hydraulic pump enters the pressure relief pipe through the pressure relief pipe and squeezes the piston plate. At this time, the piston plate squeezes the telescopic rod, and the telescopic rod squeezes the electric push rod. At this time, the pressure sensor detects the pressure on the electric push rod. When the pressure is higher than the set pressure value, the control panel automatically controls the electric push rod to start pulling the telescopic rod to move to one side. At this time, the piston plate slides toward the inside of the pressure relief pipe, allowing the hydraulic oil to enter the pressure relief pipe, thereby achieving the purpose of pressure relief. When the pressure sensor detects that the pressure of the electric push rod is less than the set value, the electric push rod stops running, thereby controlling the oil pressure within the set range, thereby achieving the oil pressure regulation function. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a multi-way valve with oil pressure regulating function according to the utility model;

[0021] Figure 2 The utility model is a multi-way valve with oil pressure regulating function Figure 1 Schematic diagram of some structures;

[0022] Figure 3 It is a cross-section of a pressure relief cylinder of a multi-way valve with oil pressure regulating function and an enlarged structural diagram of its components of the utility model;

[0023] Figure 4 It is a schematic diagram of the layered enlarged structure of the electric push rod and the protective cover of a multi-way valve with oil pressure regulating function in the utility model.

[0024] In the figure: 1. multi-way valve; 2. oil return tank; 3. hydraulic pump; 4. pressure relief port; 5. nut; 6. pressure relief pipe; 61. sealing ring; 7. pressure relief cylinder; 8. telescopic rod; 9. piston plate; 10. spring; 11. electric push rod; 12. pressure sensor; 13. protective cover; 14. control panel; 15. support plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] See also Figure 1-4 The present embodiment provides a multi-way valve with oil pressure regulating function, including a multi-way valve 1, a hydraulic pump 3 is installed at one end of the multi-way valve 1, a support plate 15 is fixedly installed at the bottom of one end of the hydraulic pump 3, a pressure relief cylinder 7 is installed on the top of the support plate 15, a telescopic rod 8, a piston plate 9 and a spring 10 are installed inside the pressure relief cylinder 7, an electric push rod 11 is connected to one end of the pressure relief cylinder 7, one end of the electric push rod 11 extends into the interior of the pressure relief cylinder 7 and is connected to one end of the telescopic rod 8, a protective cover 13 is installed at one end of the electric push rod 11, a pressure sensor 12 is embedded in one end of the electric push rod 11 located inside the protective cover 13, a control panel 14 is installed on the top of the protective cover 13, the control panel 14 is electrically connected to the electric push rod 11 and the pressure sensor 12, a pressure relief pipe 6 is installed at the other end of the pressure relief cylinder 7, one end of the pressure relief pipe 6 is connected to the inner part of the hydraulic pump 3 The parts are connected. When it is necessary to adjust the oil pressure value inside the multi-way valve, first set the pressure monitoring value of the pressure sensor 12 through the control panel 14. The hydraulic oil inside the hydraulic pump 3 will enter the pressure relief cylinder 7 through the pressure relief pipe 6 and squeeze the piston plate 9. At this time, the piston plate 9 squeezes the telescopic rod 8, and the telescopic rod 8 squeezes the electric push rod 11. At this time, the pressure sensor 12 will detect the pressure exerted on the electric push rod 11. When the pressure is higher than the set pressure value, the control panel 14 automatically controls the electric push rod 11 to start pulling the telescopic rod 8 to one side. At this time, the piston plate 9 slides toward the inside of the pressure relief cylinder 7, allowing the hydraulic oil to enter the pressure relief cylinder 7, thereby achieving the purpose of pressure relief. When the pressure sensor 12 detects that the pressure of the electric push rod 11 is less than the set value, the electric push rod 11 stops running, thereby controlling the oil pressure within the set range, thereby realizing the oil pressure regulation function.

[0028] In this embodiment, if Figure 1 and Figure 2 As shown, a sealing ring 61 is installed at one end of the pressure relief pipe 6, and a nut 5 is sleeved and slidably installed on the outer ring surface of the pressure relief pipe 6. After one end of the pressure relief pipe 6 is fitted with the sealing gasket on the pressure relief port 4 through the sealing ring 61, the nut 5 and the pressure relief port 4 are threadedly connected, and the other end of the pressure relief pipe 6 is communicated with the interior of the pressure relief cylinder 7, thereby ensuring the sealing of the pressure relief pipeline and facilitating the disassembly and assembly of the pressure relief structure.

[0029] In this embodiment, if Figure 1 and Figure 3 As shown, the telescopic rod 8 is slidably installed inside the pressure relief cylinder 7, one end of the telescopic rod 8 is located at the opening of the pressure relief cylinder 7 and a piston plate 9 is installed, a spring 10 is sleeved and installed between one end of the fixed section of the telescopic rod 8 and the piston plate 9, and there is a 7 cm gap between one end of the telescopic rod 8 and one end inside the pressure relief cylinder 7. When the pressure applied to the piston plate 9 is greater than the maximum oil pressure value of the multi-way valve 1, the piston plate 9 will squeeze the spring 10 to shrink the telescopic rod 8, thereby ensuring the internal pressure safety of the multi-way valve 1.

[0030] In this embodiment, if Figure 1 , Figure 3 and Figure 4 As shown, a circular hole is opened at one end of the pressure relief cylinder 7, and one end of the electric push rod 11 passes through the circular hole and is fixedly connected to one end of the telescopic rod 8. The telescopic length value of the electric push rod 11 is ±7cm. One end of the electric push rod 11 is clamped inside the protective cover 13, and one end of the electric push rod 11 can rotate inside the protective cover 13. One side surface of the pressure sensor 12 is in contact with one end of the inner part of the protective cover 13, so that when the electric push rod 11 is subjected to pressure, it can be transmitted to the pressure sensor 12, thereby realizing the pressure sensor 12 to monitor the pressure of one end of the electric push rod 11.

[0031] Working principle: When the multi-way valve is in use, the pressure monitoring value of the pressure sensor 12 is first set through the control panel 14. After one end of the pressure relief pipe 6 is fitted with the sealing gasket on the pressure relief port 4 through the sealing ring 61, the nut 5 is threadedly connected to the pressure relief port 4. The other end of the pressure relief pipe 6 is connected to the inside of the pressure relief cylinder 7, thereby ensuring the sealing of the pressure relief pipeline. The hydraulic oil inside the hydraulic pump 3 will enter the inside of the pressure relief cylinder 7 through the pressure relief pipe 6 and squeeze the piston plate 9. At this time, the piston plate 9 squeezes the telescopic rod 8, and the telescopic rod 8 squeezes the electric push rod 11. At this time, the pressure sensor 12 will detect the pressure on the electric push rod 11. The pressure on the piston plate 9 is greater than that of the multi-way valve 1. When the oil pressure value is the maximum, the piston plate 9 will squeeze the spring 10 to shrink the telescopic rod 8, and the piston plate 9 will slide inward to allow the oil to enter the interior of the pressure relief cylinder 7 to achieve pressure relief, thereby ensuring the internal pressure safety of the multi-way valve 1. When the pressure is higher than the set pressure value and less than the maximum oil pressure value, the control panel 14 automatically controls the electric push rod 11 to start pulling the telescopic rod 8 to one side. At this time, the piston plate 9 slides toward the interior of the pressure relief cylinder 7, allowing the hydraulic oil to enter the pressure relief cylinder 7, thereby achieving the purpose of pressure relief. When the pressure sensor 12 detects that the pressure of the electric push rod 11 is less than the set value, the electric push rod 11 stops running, thereby controlling the oil pressure within the set range, thereby realizing the oil pressure regulation function.

[0032] All technical features in this embodiment can be freely combined according to actual needs.

[0033] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A multi-way valve with oil pressure regulating function, comprising a multi-way valve (1), characterized in that: A hydraulic pump (3) is installed at one end of the multi-way valve (1), a support plate (15) is fixedly installed at the bottom of one end of the hydraulic pump (3), a pressure relief cylinder (7) is installed on the top of the support plate (15), a telescopic rod (8), a piston plate (9) and a spring (10) are installed inside the pressure relief cylinder (7), one end of the pressure relief cylinder (7) is connected to an electric push rod (11), one end of the electric push rod (11) extends into the interior of the pressure relief cylinder (7) and is connected to one end of the telescopic rod (8), A protective cover (13) is installed at one end of the electric push rod (11), and a pressure sensor (12) is embedded in one end of the electric push rod (11) located inside the protective cover (13). A control panel (14) is installed on the top of the protective cover (13). The control panel (14) is electrically connected to the electric push rod (11) and the pressure sensor (12). A pressure relief pipe (6) is installed at the other end of the pressure relief cylinder (7), and one end of the pressure relief pipe (6) is connected to the inside of the hydraulic pump (3).

2. A multi-way valve with oil pressure regulating function according to claim 1, characterized in that: An oil return tank (2) is installed at one end of the multi-way valve (1) away from the hydraulic pump (3), and the hydraulic oil inside the hydraulic pump (3) will flow back into the oil return tank (2) through the pipeline when flowing.

3. The multi-way valve with oil pressure regulating function according to claim 1, characterized in that: An oil pressure relief port (4) is installed at one end of the hydraulic pump (3), an oil external thread is provided on the outer ring surface of the pressure relief port (4), and a sealing gasket is fitted on one end of the pressure relief port (4).

4. The multi-way valve with oil pressure regulating function according to claim 1, characterized in that: A sealing ring (61) is installed at one end of the pressure relief pipe (6), and a nut (5) is sleeved and slidably installed on the outer ring surface of the pressure relief pipe (6). After one end of the pressure relief pipe (6) is fitted with a sealing gasket on the pressure relief port (4) through the sealing ring (61), the nut (5) and the pressure relief port (4) are threadedly connected, and the other end of the pressure relief pipe (6) is communicated with the interior of the pressure relief cylinder (7).

5. The multi-way valve with oil pressure regulating function according to claim 1, characterized in that: The telescopic rod (8) is slidably mounted inside the pressure relief cylinder (7); one end of the telescopic rod (8) is provided with a piston plate (9) at the opening of the pressure relief cylinder (7); and a spring (10) is sleeved and mounted between one end of the fixed section of the telescopic rod (8) and the piston plate (9).

6. The multi-way valve with oil pressure regulating function according to claim 1, characterized in that: There is a gap of 7 cm between one end of the telescopic rod (8) and one end inside the pressure relief cylinder (7). When the pressure applied to the piston plate (9) is greater than the maximum oil pressure value of the multi-way valve (1), the piston plate (9) will squeeze the spring (10) to shrink the telescopic rod (8).

7. The multi-way valve with oil pressure regulating function according to claim 1, characterized in that: A circular hole is formed at one end of the pressure relief cylinder (7), and one end of the electric push rod (11) passes through the circular hole and is fixedly connected to one end of the telescopic rod (8). The telescopic length of the electric push rod (11) is ±7 cm.

8. The multi-way valve with oil pressure regulating function according to claim 1, characterized in that: One end of the electric push rod (11) is clamped inside the protective cover (13), and one end of the electric push rod (11) can rotate inside the protective cover (13), and one side of the pressure sensor (12) is in contact with one end inside the protective cover (13).

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