Integrated multi-way valve

Abstract

The utility model relates to the technical field of hydraulic control, and discloses an integrated multi-way valve. The multi-way valve comprises a body, a plate type valve, an electromagnetic valve, a tail plate and an oil return pipeline, the plate type valve comprises valve bodies, an electromagnetic reversing valve, a check valve and a one-way valve, the valve bodies are arranged side by side, and the body and the tail plate are arranged on the two sides of the valve bodies. The second oil inlet and the second oil return port of the valve body are communicated with the first oil inlet and the first oil return port of the body respectively, the electromagnetic reversing valve and the check valve are arranged on the valve body, and the electromagnetic valve is arranged on the body. According to the multi-way valve, hydraulic oil enters from the P port of the body and reaches the P port of the valve body, the electromagnetic directional valve controls the hydraulic oil to flow out from the working oil port A or the working oil port B of the valve body and reaches the port A or the port B of the executing mechanism after passing through the check valve, control over the executing mechanism is achieved, and the electromagnetic valve controls whether the hydraulic oil of the executing mechanism flows back to the T port of the body or not. The device has the advantages of small size and compact structure.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of hydraulic control, and in particular to an integrated multi-way valve. Background Art

[0002] The hydraulic control system is based on the power provided by the motor, and uses the hydraulic pump to convert mechanical energy into pressure to push the hydraulic oil. The oil pressure of the hydraulic oil drives various actuators to move and complete the required work.

[0003] The control and reversing of the actuator's motion are generally achieved through hydraulic valves in the hydraulic control system.

[0004] The inventors of the present application have discovered that, when there are a large number of actuators, there are also a large number of hydraulic valves, which results in a complex oil circuit structure of the hydraulic system and inconvenience in installation. Utility Model Content

[0005] The purpose of the present utility model is to provide an integrated multi-way valve to solve the problems in the above-mentioned background technology.

[0006] The embodiment of the utility model provides an integrated multi-way valve, comprising: a body, a plate valve, a solenoid valve, a tail plate and an oil return pipeline;

[0007] The body is provided with a first oil inlet and a first oil return port for connecting to a hydraulic oil supply mechanism;

[0008] The plate-type valve is provided in plurality;

[0009] The disc valve comprises: a valve body, an electromagnetic reversing valve, a check valve and a one-way valve;

[0010] The valve body is provided with a second oil inlet, a second oil return port, a working oil port A and a working oil port B;

[0011] The plurality of valve bodies are arranged side by side, the main body and the tail plate are respectively arranged on both sides of the plurality of valve bodies, the second oil inlet and the second oil return port are respectively connected to the first oil inlet and the first oil return port, and the working oil port A and the working oil port B are respectively used to connect to the A port and the B port of the actuator;

[0012] The electromagnetic reversing valve is arranged on the valve body and is used to control the oil outlet direction of the valve body;

[0013] There are two check valves and two one-way valves;

[0014] The two check valves are provided on the valve body, respectively located between the working oil port A and the A port of the actuator, and between the working oil port B and the B port of the actuator, for preventing the hydraulic oil from flowing back to the working oil port;

[0015] The oil return pipeline is connected to the first oil return port;

[0016] The A port and the B port of the actuator are connected to the oil return pipeline through oil return branches respectively, and the one-way valve is arranged on the oil return branch;

[0017] The solenoid valve is arranged on the oil return pipeline and is used to control the connection and disconnection between the A port and the B port of all actuators and the first oil return port.

[0018] Based on the above scheme, the integrated multi-way valve of the present invention comprises a main body, a disc valve, a solenoid valve, a tail plate, and an oil return line. The disc valve comprises a valve body, a solenoid reversing valve, a check valve, and a one-way valve. The valve bodies of the multiple disc valves are arranged side by side, and the main body and tail plate are disposed on either side of the multiple valve bodies. The second oil inlet and second oil return port of the valve body are respectively connected to the first oil inlet and first oil return port of the main body. The working oil port A and working oil port B of the valve body are respectively connected to port A and port B of the actuator. The solenoid reversing valve is disposed on the valve body, and two check valves are disposed on the valve body, located between working oil port A and port A of the actuator, and between working oil port B and port B of the actuator. The oil return line is connected to the first oil return port, and ports A and B are connected to the oil return line via an oil return branch line. The one-way valve is disposed on the oil return branch line, and the solenoid valve is disposed on the oil return line. This integrated multi-way valve combines multiple disc valves to control the movement of multiple actuators, simplifying the hydraulic control system's oil circuit structure. Hydraulic oil enters the valve body through port P and flows to ports P of all valve bodies. A solenoid-operated directional valve controls the flow of hydraulic oil from either working port A or port B of the valve body, where it then flows through a check valve to port A or port B of the external actuator, thereby controlling the actuator. The on / off switching of the solenoid valve controls whether the hydraulic oil from the actuator flows back to port T of the valve body. This valve boasts a compact size, compact structure, durability, and low leakage, making it suitable for a wide range of actuators, including those in construction machinery and lifting and transportation equipment.

[0019] In a feasible solution, the check valve is a plug-in check valve, and the solenoid valve is a plug-in solenoid valve.

[0020] In a feasible solution, the main body is provided with a threaded hole, and the valve body and the tail plate are both provided with fixing through holes, so that the three are connected by connecting screws.

[0021] In a feasible solution, a spring washer is provided between the tail plate and the connecting screw.

[0022] In a feasible solution, O-rings are provided between the tail plate and the valve body, between the main body and the valve body, and between two adjacent valve bodies.

[0023] In a feasible solution, it further includes: a connecting plate;

[0024] There are two connecting plates, which are respectively arranged on the main body and the tail plate for fixing.

[0025] In a feasible solution, the body and the tail plate are provided with threaded holes;

[0026] The connecting plate is U-shaped, and a mounting hole is provided on a side wall of the U-shape, so that the connecting plate can be fixed by fixing screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] Figure 1 Schematic diagram of an integrated multi-way valve in an embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram from another angle of the integrated multi-way valve in an embodiment of the present utility model;

[0030] Figure 3 2 is a schematic diagram of the integrated multi-way valve in an embodiment of the present utility model from a third angle;

[0031] Figure 4 This is a schematic diagram of the working principle of the integrated multi-way valve in an embodiment of the present utility model.

[0032] Numbers in the figure:

[0033] 1. Main body; 11. First oil inlet; 12. First oil return port; 2. Plate valve; 21. Valve body; 22. Solenoid reversing valve; 23. Check valve; 24. One-way valve; 3. Solenoid valve; 4. Tail plate; 5. Oil return line; 6. Connecting screws; 7. Connecting plate; 71. Mounting hole; 72. Fixing screws. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to 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 device or element referred to 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 this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0038] As described in the background of this application, a hydraulic control system uses the pressure of hydraulic oil to drive various actuators to move and complete the required work. The control and reversal of the actuator movement are generally achieved through hydraulic valves in the hydraulic control system.

[0039] The inventors of the present application have discovered that, when there are a large number of actuators, there are also a large number of hydraulic valves, which results in a complex oil circuit structure of the hydraulic system, occupies a large space, and is inconvenient to install.

[0040] In order to solve the above problems, the inventors of this application have proposed the technical solution of this application, and the specific embodiments are as follows:

[0041] Figure 1 This is a schematic diagram of an integrated multi-way valve in an embodiment of the present utility model. Figure 2 This is a schematic diagram from another angle of the integrated multi-way valve in the embodiment of the utility model. Figure 3 : is a third angle schematic diagram of the integrated multi-way valve in the embodiment of the utility model, Figure 4 This is a schematic diagram of the working principle of the integrated multi-way valve in an embodiment of the present utility model.

[0042] like Figures 1 to 4 As shown, the integrated multi-way valve of this embodiment includes: a body 1, a plate valve 2, a solenoid valve 3, a tail plate 4 and an oil return pipeline 5.

[0043] The main body 1 is in a square block shape and is provided with a first oil inlet 11 (P port) and a first oil return port 12 (T port) which penetrate through the main body 1. The first oil inlet 11 and the first oil return port 12 of the main body 1 are used to connect with the hydraulic oil supply mechanism.

[0044] The disc valve 2 includes a valve body 21 , an electromagnetic reversing valve 22 , a check valve 23 and a one-way valve 24 .

[0045] The valve body 21 of the disc valve 2 is also in a square block shape. The valve body 21 is provided with a second oil inlet (P port), a second oil return port (T port), a working oil port A (A port) and a working oil port B (B port).

[0046] There are multiple disc valves 2, and the number of disc valves 2 corresponds to the number of actuators.

[0047] The valve bodies 21 of the multiple disc valves 2 are arranged closely side by side, with the main body 1 and tail plate 4 respectively arranged on the left and right sides of the multiple parallel valve bodies 21. The second oil inlet ports of the multiple valve bodies 21 are all connected to the first oil inlet port 11 of the main body 1, and the second oil return ports of the multiple valve bodies 21 are all connected to the first oil return port 12 of the main body 1.

[0048] The working oil ports A and B of the plurality of valve bodies 21 are respectively used to be connected to the A ports and B ports of the plurality of actuators.

[0049] The electromagnetic reversing valve 22 is arranged on the valve body 21. The electromagnetic reversing valve 22 controls the oil outlet direction of the valve body 21, that is, controls the hydraulic oil to flow out from the working oil port A or the working oil port B of the valve body 21, that is, the electromagnetic reversing valve 22 controls the hydraulic oil to be delivered from the A port or the B port of the actuator to the actuator.

[0050] Each disc valve 2 is provided with two check valves 23 and two one-way valves 24 .

[0051] The check valve 23 is arranged on the valve body 21. The two check valves 23 are respectively located between the working oil port A of the valve body 21 and the A port of the actuator, and between the working oil port B of the valve body 21 and the B port of the actuator. The check valve 23 is used to prevent the hydraulic oil from flowing back from the actuator to the working oil port of the valve body 21.

[0052] One end of the oil return pipeline 5 is connected to and communicates with the first oil return port 12 of the body 1 .

[0053] Ports A and B of all actuators are connected to and communicate with the oil return line via oil return branches. A check valve 24 is built into the valve body 21 and positioned on the oil return branch. This check valve 24 connects ports A and B of each actuator to the first oil return port 12 of the main body 1, while simultaneously blocking the connection from the first oil return port 12 to the actuator's ports A and B, allowing the actuator's hydraulic oil to flow back to the first oil return port 12 of the main body 1.

[0054] The solenoid valve 3 is arranged on the body 1 and on the oil return line 5 . The solenoid valve 3 is used to control the connection and disconnection between the A port and the B port of all actuators and the first oil return port 12 of the body 1 .

[0055] like Figure 4 As shown, the working principle of the oil circuit of the multi-way valve in this embodiment is: the hydraulic oil of the hydraulic oil supply mechanism enters from the P port of the main body and flows into the P port of the valve body of all the disc valves. The hydraulic oil is controlled by the electromagnetic reversing valve to flow out from the working oil port A or the working oil port B of the valve body. After passing through the check valve, the hydraulic oil reaches the A port or B port of the external actuator to realize the control of the actuator.

[0056] When the hydraulic oil supply mechanism stops supplying oil, under the action of the check valve, the hydraulic oil in the actuator will not flow back to the working oil port of the valve body, so that the actuator can maintain its working state and ensure safety.

[0057] Port A or B of each actuator is connected to port T of the main body through an oil return branch and oil return line. The hydraulic oil in port A or B flows through a one-way valve to the solenoid valve in the oil return line. The on-off control of the solenoid valve controls whether the hydraulic oil of the actuator flows back to the first oil return port (port T) of the main body.

[0058] From the foregoing, it is readily apparent that the integrated multi-way valve of this embodiment comprises a main body, a disc valve, a solenoid valve, a tail plate, and an oil return line. The disc valve comprises a valve body, a solenoid directional control valve, a check valve, and a one-way valve. The valve bodies of the multiple disc valves are arranged side by side, with the main body and tail plate positioned on either side of the multiple valve bodies. The second oil inlet and second oil return ports of the valve body are connected to the first oil inlet and first oil return ports of the main body, respectively. The working oil ports A and B of the valve body are respectively connected to ports A and B of the actuator. The solenoid directional control valve is disposed on the valve body, and two check valves are disposed on the valve body, located between working oil port A and port A of the actuator, and between working oil port B and port B of the actuator. The oil return line is connected to the first oil return port, and ports A and B are connected to the oil return line via an oil return branch. The one-way valve is disposed on the oil return branch, and the solenoid valve is disposed on the oil return line. In this embodiment, the integrated multi-way valve integrates multiple disc valves to control the movement of multiple actuators, simplifying the oil circuit structure of the hydraulic control system. Hydraulic oil enters the valve body through port P and flows into all valve bodies' ports P. A solenoid-operated directional valve controls the flow of hydraulic oil out of either working port A or B. After passing through a check valve, the oil reaches port A or B of the external actuator, controlling the actuator. The on / off switching of the solenoid valve controls whether the hydraulic oil from the actuator flows back to port T on the valve body. This valve offers advantages such as small size, compact structure, durability, and low leakage, making it suitable for a wide range of actuators, including those in construction machinery and lifting and transportation equipment.

[0059] Optionally, in the integrated multi-way valve in this embodiment, the check valve 23 is a plug-in check valve, which is plugged into both sides of the valve body 21 .

[0060] The solenoid valve 3 is a plug-in solenoid valve, which is plugged into a reserved socket of the body 1 .

[0061] Optionally, in the integrated multi-way valve in this embodiment, the main body 1 is provided with a threaded hole, and the valve body 21 of the disc valve 2 and the tail plate 4 are both provided with fixed through holes.

[0062] The connecting screws 6 pass through the fixing through holes of the tail plate 4 and the fixing through holes of the multiple valve bodies 21 in sequence, and engage with the threaded holes of the main body 1 to connect and fix the tail plate 4, the multiple valve bodies 21 and the main body 1 together.

[0063] Furthermore, in the integrated multi-way valve of this embodiment, a spring washer is provided between the connecting screw 6 and the tail plate 4. The spring washer is sleeved on the connecting screw 6, and its two side surfaces respectively abut against the connecting screw 6 and the tail plate 4.

[0064] Furthermore, the integrated multi-way valve in this embodiment is provided with O-rings (not shown) between the main body 1 and the valve body 21, between two adjacent valve bodies 21, and between the tail plate 4 and the valve body 21, so as to make them more sealed.

[0065] Optionally, the integrated multi-way valve in this embodiment further includes: a connecting plate 7.

[0066] There are two connecting plates 7, which are respectively arranged on the main body 1 and the tail plate 4. The connecting plates 7 are used to connect with external workpieces to facilitate the installation and fixation of the multi-way valve as a whole.

[0067] Furthermore, in the integrated multi-way valve of this embodiment, both the body 1 and the tail plate 4 are provided with threaded holes.

[0068] The connecting plate 7 is U-shaped, and mounting holes 71 are provided on both side walls of the U-shape, so that the connecting plate 7 is fixed to the body 1 and the tail plate 4 by fixing screws 72, and can also be fixed to an external workpiece by fixing screws.

[0069] In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may mean that the first feature and the second feature are in direct contact, or the first feature and the second feature are in indirect contact through an intermediate medium.

[0070] Furthermore, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0071] In the description of this specification, reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated multi-way valve, characterized in that: include: Body, disc valve, solenoid valve, tail plate and oil return line; The body is provided with a first oil inlet and a first oil return port for connecting to a hydraulic oil supply mechanism; The plate-type valve is provided in plurality; The disc valve comprises: a valve body, an electromagnetic reversing valve, a check valve and a one-way valve; The valve body is provided with a second oil inlet, a second oil return port, a working oil port A and a working oil port B; The plurality of valve bodies are arranged side by side, the main body and the tail plate are respectively arranged on both sides of the plurality of valve bodies, the second oil inlet and the second oil return port are respectively connected to the first oil inlet and the first oil return port, and the working oil port A and the working oil port B are respectively used to connect to the A port and the B port of the actuator; The electromagnetic reversing valve is arranged on the valve body and is used to control the oil outlet direction of the valve body; There are two check valves and two one-way valves; The two check valves are provided on the valve body, respectively located between the working oil port A and the A port of the actuator, and between the working oil port B and the B port of the actuator, for preventing the hydraulic oil from flowing back to the working oil port; The oil return pipeline is connected to the first oil return port; The A port and the B port of the actuator are connected to the oil return pipeline through oil return branches respectively, and the one-way valve is arranged on the oil return branch; The solenoid valve is arranged on the oil return pipeline and is used to control the connection and disconnection between the A port and the B port of all actuators and the first oil return port.

2. The integrated multi-way valve according to claim 1, characterized in that: The check valve is a plug-in check valve, and the solenoid valve is a plug-in solenoid valve.

3. The integrated multi-way valve according to claim 1, characterized in that: The main body is provided with a threaded hole, and the valve body and the tail plate are both provided with fixing through holes, so that the three are connected by connecting screws.

4. The integrated multi-way valve according to claim 3, characterized in that: A spring washer is provided between the tail plate and the connecting screws.

5. The integrated multi-way valve according to claim 3, characterized in that: O-type sealing rings are provided between the tail plate and the valve body, between the main body and the valve body, and between two adjacent valve bodies.

6. The integrated multi-way valve according to claim 1, characterized in that: Also includes: connecting plate; There are two connecting plates, which are respectively arranged on the main body and the tail plate for fixing.

7. The integrated multi-way valve according to claim 6, characterized in that: The body and the tail plate are provided with threaded holes; The connecting plate is U-shaped, and a mounting hole is provided on a side wall of the U-shape, so that the connecting plate can be fixed by fixing screws.

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