Multi-way valve with oil return self-locking device

Abstract

The utility model relates to the technical field of multi-way valves, and discloses a multi-way valve with an oil return self-locking device, which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is positioned at the outer end of the main body mechanism, the main body mechanism comprises a machine body, a first oil inlet, a second oil outlet and inlet and a control assembly, the first oil inlet is fixedly arranged at the upper end of the machine body, and the second oil outlet and inlet is fixedly arranged at the lower end of the machine body. The second oil inlet and outlet is fixedly formed in the front end of the machine body, and the control assembly is fixedly installed in the machine body and comprises a first oil inlet pipe, a check valve and a first fluid sensor. According to the multi-way valve with the oil return self-locking device, through installation of the main body mechanism, when backflow occurs in a pipe cavity of a first oil inlet and a pipe cavity of a second oil inlet, a first fluid sensor controls a check valve to be closed through a PLC remote control device, a second fluid sensor controls an electromagnetic valve to be closed through the PLC remote control device, and then backflow of liquid in the pipe cavity is controlled; and the safety of the device is effectively improved.

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 return self-locking device. Background Art

[0002] A multi-way valve, also known as a multi-way reversing valve, is a device used to control the flow direction and pressure of a fluid. 12 A multi-way valve is usually composed of a valve body, a valve core, a spring, a seal, etc. Its structure can be divided into manual, pneumatic and electric types according to the control method of the valve. The main function of a multi-way valve is to control the flow direction and pressure of the fluid. When the multi-way valve is in a closed state, the fluid cannot enter or exit through the multi-way valve; when the multi-way valve is in an open state, the fluid can flow in or out from different channels. The multi-way valve is not only suitable for control and distribution in hydraulic systems, but can also be used in pneumatic systems and liquid-gas mixing systems. The characteristics of a multi-way valve include simple structure, easy operation, ability to reduce pipeline connections, reduce system costs, improve efficiency, strong control capabilities and reliability, and can adapt to different working conditions and flow requirements.

[0003] The existing patent CN214838749U proposes a multi-way valve with an oil return self-locking device. The utility model includes a multi-way valve body, which includes a valve body, an oil inlet oil circuit, a three-way assembly, an oil supply oil circuit and an oil return oil circuit. By setting a pressure sensor, when hydraulic oil enters, the pressure inside the oil inlet oil circuit increases, the pressure sensor detects the pressure information, and transmits the signal to the receiver, and the receiver then transmits the signal to the control unit. The control unit controls the operation of the electric actuator and the valve core opens. Conversely, when no hydraulic oil enters, the valve core closes. By setting a connecting structure, the valve body can be simply disassembled, which facilitates the maintenance work of maintenance workers, so that the valve body does not have to be a disposable item, reducing the cost of use. The control unit is connected to the remote control end, and the user can operate remotely, which is very practical.

[0004] However, although the existing patent CN214838749U can realize simple disassembly of the valve body by setting a connection structure, which facilitates the maintenance work of maintenance workers and makes the valve body no longer disposable, reducing the cost of use, and the control unit is connected to the remote control end, the user can operate remotely, which is very practical. However, when the oil load inside the multi-way valve is too large, oil return may occur, which may cause the oil circuit to be contaminated by other oils. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-way valve with an oil return self-locking device to solve the problem mentioned in the above background technology that when the oil load inside the multi-way valve is too large, oil return may occur, which may then cause the oil circuit to be contaminated by other oils.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-way valve with an oil return self-locking device, comprising a main mechanism and an auxiliary mechanism, wherein the auxiliary mechanism is located at the outer end of the main mechanism, and the main mechanism comprises a body, an oil inlet port 1, an oil inlet port 2 and a control component, wherein the oil inlet port 1 is fixedly arranged at the upper end of the body, the oil inlet port 2 is fixedly arranged at the front end of the body, and the control component is fixedly installed inside the body; the control component comprises an oil inlet pipe 1, a check valve and a fluid sensor 1, wherein the oil inlet pipe 1 is fixedly arranged at the lower end of the oil inlet port 1, the check valve is fixedly installed at the lower end of the oil inlet pipe 1, and the fluid sensor 1 is fixedly installed on the outside of the check valve.

[0007] Preferably, the control component also includes a valve core, a solenoid valve, two fluid sensors, an oil outlet pipe and a PLC remote control device. The valve core is fixedly installed below the check valve. The installation of the valve core is mainly used for distributing liquid pipelines, which effectively improves the practicability of the device.

[0008] Preferably, the solenoid valve is fixedly installed below the valve core, and the fluid sensor 2 is fixedly installed on the outside of the solenoid valve. When backflow occurs inside the official cavity of the oil inlet 1 and the oil outlet 2, the fluid sensor 1 controls the check valve to close through the PLC remote control device, and then controls the backflow of the liquid inside the official cavity, which effectively improves the safety of the device.

[0009] Preferably, the oil outlet pipe 1 is fixedly installed at the lower end of the solenoid valve, and the PLC remote control device is fixedly installed on the left side of the inner end of the machine body. When backflow occurs inside the official cavity of the oil inlet 1 and the oil outlet 2, the fluid sensor 2 controls the solenoid valve to close through the PLC remote control device, and then controls the backflow of the liquid inside the official cavity, thereby effectively improving the safety of the device.

[0010] Preferably, the PLC remote control device signal is connected to fluid sensor 1, and the PLC remote control device signal is connected to fluid sensor 2. The PLC remote control device is mainly used to control the check valve and the solenoid valve inside the machine body.

[0011] Preferably, the auxiliary mechanism comprises a mounting seat, a tube bundle hole and a heat dissipation window. The mounting seat is fixedly mounted on the lower end of the machine body. The installation of the mounting seat facilitates the fixation of the device and can also prevent liquid from dripping.

[0012] Preferably, the tube bundle hole is fixedly arranged on the mounting seat, and the heat dissipation window is fixedly arranged on the right side of the machine body. The setting of the tube bundle hole facilitates the fixation of the connecting tube, and the setting of the heat dissipation window facilitates the heat dissipation inside the machine body, which effectively improves the safety of the device.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The multi-way valve with oil return self-locking device, through the installation of the main body mechanism, when the internal cavity of the oil inlet 1 and the oil inlet 2 has backflow, the fluid sensor 1 controls the check valve to close through the PLC remote control device, and the fluid sensor 2 controls the solenoid valve to close through the PLC remote control device, and then controls the backflow of the liquid in the internal cavity, which effectively improves the safety of the device;

[0015] 2. The multi-way valve with oil return self-locking device is convenient for fixing the device through the installation of auxiliary mechanisms and the installation of the mounting seat, and can also prevent liquid from dripping. The setting of the tube bundle hole is convenient for fixing the connecting pipe, and the setting of the heat dissipation window is convenient for heat dissipation inside the machine body, which effectively improves the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the machine body of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the partial cross-section structure of the utility model.

[0021] In the figure: 1. Main mechanism; 101. Machine body; 102. Oil inlet 1; 103. Oil inlet and outlet 2; 104. Control assembly; 1041. Oil inlet pipe 1; 1042. Check valve; 1043. Fluid sensor 1; 1044. Valve core; 1044. Valve core; 1045. Solenoid valve; 1046. Fluid sensor 2; 1047. Oil outlet pipe 1; 1048. PLC remote control device; 2. Auxiliary mechanism; 201. Mounting seat; 202. Tube bundle hole; 203. Heat dissipation window. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 5The utility model provides a technical solution: a multi-way valve with an oil return self-locking device, comprising a main mechanism 1 and an auxiliary mechanism 2, the auxiliary mechanism 2 is located at the outer end of the main mechanism 1, the main mechanism 1 comprises a body 101, an oil inlet 102, an oil inlet and outlet 103 and a control component 104, the oil inlet 102 is fixedly arranged at the upper end of the body 101, the oil inlet and outlet 103 is fixedly arranged at the front end of the body 101, and the control component 104 is fixedly installed inside the body 101; the control component 104 comprises an oil inlet pipe 1041, a check valve 1042 and a fluid sensor 1043, the oil inlet pipe 1041 is fixedly arranged at the lower end of the oil inlet 102, the check valve 1042 is fixedly arranged at the lower end of the oil inlet pipe 1041, the fluid sensor 104 3 is fixedly installed on the outer side of the check valve 1042. The control component 104 also includes a valve core 1044, a solenoid valve 1045, a fluid sensor 1046, an oil outlet pipe 1047 and a PLC remote control device 1048. The valve core 1044 is fixedly installed below the check valve 1042, the solenoid valve 1045 is fixedly installed below the valve core 1044, the fluid sensor 1046 is fixedly installed on the outer side of the solenoid valve 1045, the oil outlet pipe 1047 is fixedly installed at the lower end of the solenoid valve 1045, and the PLC remote control device 1048 is fixedly installed on the left side of the inner end of the body 101. The signal of the PLC remote control device 1048 is connected to the fluid sensor 1 1043, and the signal of the PLC remote control device 1048 is connected to the fluid sensor 2 1046.

[0024] The auxiliary mechanism 2 includes a mounting seat 201, a tube bundle hole 202 and a heat dissipation window 203. The mounting seat 201 is fixedly mounted on the lower end of the body 101, the tube bundle hole 202 is fixedly arranged on the mounting seat 201, and the heat dissipation window 203 is fixedly arranged on the right side of the body 101. When using a multi-way valve with an oil return self-locking device, when backflow occurs inside the official cavity of the oil inlet 102 and the oil inlet and outlet 2 103, the fluid sensor 1 1043 controls the check valve 1042 to be closed through the PLC remote control device 1048, and the fluid sensor 2 1046 controls the solenoid valve 1045 to be closed through the PLC remote control device 1048, thereby controlling the backflow of the liquid inside the official cavity. The installation of the mounting seat 201 facilitates the fixation of the device and also prevents liquid from dripping. The setting of the tube bundle hole 202 facilitates the fixation of the connecting pipe, and the setting of the heat dissipation window 203 facilitates the heat dissipation inside the body 101.

[0025] Working principle: When using a multi-way valve with an oil return self-locking device, when backflow occurs inside the official cavity of the oil inlet 102 and the oil inlet 2 103, the fluid sensor 1 1043 controls the check valve 1042 to close through the PLC remote control device 1048, and the fluid sensor 2 1046 controls the solenoid valve 1045 to close through the PLC remote control device 1048, thereby controlling the backflow of the liquid inside the official cavity. The installation of the mounting seat 201 facilitates the fixation of the device and prevents liquid from dripping. The setting of the tube bundle hole 202 facilitates the fixation of the connecting pipe. The setting of the heat dissipation window 203 facilitates the heat dissipation inside the machine body 101.

[0026] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A multi-way valve with an oil return self-locking device, comprising a main mechanism (1) and an auxiliary mechanism (2), characterized in that: The auxiliary mechanism (2) is located at the outer end of the main mechanism (1); the main mechanism (1) comprises a body (101), an oil inlet port 1 (102), an oil inlet port 2 (103) and a control component (104); the oil inlet port 1 (102) is fixedly arranged at the upper end of the body (101); the oil inlet port 2 (103) is fixedly arranged at the front end of the body (101); and the control component (104) is fixedly installed inside the body (101); the control component (104) comprises an oil inlet pipe 1 (1041), a check valve (1042) and a fluid sensor 1 (1043); the oil inlet pipe 1 (1041) is fixedly arranged at the lower end of the oil inlet port 1 (102); the check valve (1042) is fixedly installed at the lower end of the oil inlet pipe 1 (1041); and the fluid sensor 1 (1043) is fixedly installed on the outer side of the check valve (1042).

2. A multi-way valve with an oil return self-locking device according to claim 1, characterized in that: The control assembly (104) further comprises a valve core (1044), a solenoid valve (1045), a second fluid sensor (1046), an oil outlet pipe (1047) and a PLC remote control device (1048); the valve core (1044) is fixedly installed below the check valve (1042).

3. A multi-way valve with an oil return self-locking device according to claim 2, characterized in that: The solenoid valve (1045) is fixedly mounted below the valve core (1044), and the second fluid sensor (1046) is fixedly mounted on the outside of the solenoid valve (1045).

4. A multi-way valve with an oil return self-locking device according to claim 3, characterized in that: The oil outlet pipe 1 (1047) is fixedly mounted on the lower end of the solenoid valve (1045), and the PLC remote control device (1048) is fixedly mounted on the left side of the inner end of the machine body (101).

5. A multi-way valve with an oil return self-locking device according to claim 4, characterized in that: The PLC remote control device (1048) is signal-connected to the fluid sensor 1 (1043), and the PLC remote control device (1048) is signal-connected to the fluid sensor 2 (1046).

6. A multi-way valve with an oil return self-locking device according to claim 5, characterized in that: The auxiliary mechanism (2) comprises a mounting seat (201), a tube bundle hole (202) and a heat dissipation window (203); the mounting seat (201) is fixedly mounted on the lower end of the machine body (101).

7. A multi-way valve with an oil return self-locking device according to claim 6, characterized in that: The tube bundle hole (202) is fixedly arranged on the mounting seat (201), and the heat dissipation window (203) is fixedly arranged on the right side of the machine body (101).

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