Oil cylinder stabilizing valve group

Abstract

The utility model discloses an oil cylinder stabilizing valve group which comprises a valve block, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a first overflow valve and a second overflow valve. The valve block is provided with a first oil port, a second oil port, a third oil port, a fourth oil port, a fifth oil port and a sixth oil port. The first electromagnetic valve is communicated with the fourth oil port and is used for controlling the on-off of the fourth oil port; the second electromagnetic valve is communicated with the third oil port and is used for controlling the on-off of the third oil port; the third electromagnetic valve is communicated with the fifth oil port and is used for controlling the on-off of the fifth oil port; and the second overflow valve is respectively communicated with the second oil port and the third electromagnetic valve. According to the utility model, the backpressure can be controlled more accurately, so that an executive component can act more stably; high pressure resistance, large flow and high valve interchangeability are achieved, the valve can be used in different systems, and the application range is wider; the valve group is more convenient to install, repair or clean.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic valve group technical field, especially relate to a kind of oil cylinder stable valve group. BACKGROUND

[0002] The valve group of such on the market adopts damping hole to increase the stability of execution element, and in the use process, the damping hole needs to be removed valve piece or plug, and the operation is more cumbersome;Long time use, under pressure impact, it is easy to be damaged, lead to functional failure, bring unnecessary loss. SUMMARY

[0003] According to the utility model embodiment, provide a kind of oil cylinder stable valve group, include:

[0004] Valve block, first oil port, second oil port, third oil port, fourth oil port, fifth oil port and sixth oil port are provided on valve block;

[0005] First solenoid valve, first solenoid valve is communicated with fourth oil port, for controlling the on-off of fourth oil port;

[0006] Second solenoid valve, second solenoid valve is communicated with third oil port, for controlling the on-off of third oil port;

[0007] Third solenoid valve, third solenoid valve is communicated with fifth oil port, for controlling the on-off of fifth oil port;

[0008] First overflow valve, first overflow valve is communicated with first solenoid valve, second solenoid valve and third solenoid valve respectively;

[0009] Second overflow valve, second overflow valve is communicated with second oil port and third solenoid valve respectively.

[0010] Further, first overflow valve is direct-acting overflow valve.

[0011] Further, second overflow valve is external exhaust overflow valve.

[0012] System pressure is adjusted by second overflow valve, the action of oil cylinder is controlled by first and second solenoid valve, and the back pressure of oil return of oil cylinder is controlled by third solenoid valve and first overflow valve.

[0013] Further, valve block material is cast iron.

[0014] Further, valve block outer surface is electroplated with one side zinc-nickel alloy.

[0015] Further, seventh oil port and eighth oil port are further provided on valve block, and seventh oil port and eighth oil port are not on the same side of valve block.

[0016] Further, it further includes: pressure measuring connector, pressure measuring connector is connected with sixth oil port, for external pressure gauge.

[0017] Further, the coils on the first solenoid valve, the second solenoid valve and the third solenoid valve are connected in a DUCHI mode.

[0018] The oil cylinder stabilizing valve group according to the embodiment of the present application can more accurately control the size of the back pressure, so that the execution element moves more stably; the coils on the solenoid valves are connected in a DUCHI mode, the waterproof level is IP67, and the safety is higher; it has high pressure resistance, large flow, high valve interchangeability, can be used in different systems, and the application range is wider; at the same time, the height integration of the plug-in valve ensures that the structure is compact, small in size, small in space occupation, so that the valve group is more convenient to install, repair or clean.

[0019] It is to be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further explanation of the subject technology claimed. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a front view according to the embodiment of the present application;

[0021] Figure 2 is a top view according to the embodiment of the present application;

[0022] Figure 3 is a left view according to the embodiment of the present application;

[0023] Figure 4 is a right view according to the embodiment of the present application;

[0024] Figure 5 is a rear view according to the embodiment of the present application;

[0025] Figure 6 is a bottom view according to the embodiment of the present application;

[0026] Figure 7 is a schematic diagram according to the embodiment of the present application. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, and the present application will be further described.

[0028] Firstly, the oil cylinder stabilizing valve group according to the embodiment of the present application will be described in combination with Figures 1-7 The oil cylinder stabilizing valve group according to the embodiment of the present application is used in a hydraulic control device, and has a wide application scenario.

[0029] As shown in Figures 1-7 The oil cylinder stabilizing valve group according to the embodiment of the present application comprises:

[0030] Valve block 1, valve block 1 is provided with first oil port P, second oil port T, third oil port K, fourth oil port X, fifth oil port L and sixth oil port M; first oil port P is communicated with pump outlet, second oil port T and fifth oil port L are communicated with oil tank respectively, third oil port K is communicated with oil cylinder rodless cavity, fourth oil port X is communicated with oil cylinder rod cavity, sixth oil port M is connected with pressure gauge;

[0031] First electromagnetic valve 21, first electromagnetic valve 21 is communicated with fourth oil port X, for controlling the on-off of fourth oil port X;

[0032] Second electromagnetic valve 22, second electromagnetic valve 22 is communicated with third oil port K, for controlling the on-off of third oil port K;

[0033] Third electromagnetic valve 23, third electromagnetic valve 23 is communicated with fifth oil port L, for controlling the on-off of fifth oil port L;

[0034] First overflow valve 3, first overflow valve 3 is communicated with first electromagnetic valve 21, second electromagnetic valve 22 and third electromagnetic valve 23 respectively;

[0035] Second overflow valve 4, second overflow valve 4 is communicated with second oil port T and third electromagnetic valve 23 respectively.

[0036] Further, as shown in FIG. Figure 2 , 6 7, in the embodiment, first overflow valve 3 is direct acting type overflow valve.

[0037] Further, as shown in FIG. Figure 2 , 6 7, in the embodiment, second overflow valve 4 is external exhaust type overflow valve.

[0038] Further, in the embodiment, valve block 1 is made of cast iron.

[0039] Further, in the embodiment, valve block 1 is electroplated with one side zinc-nickel alloy on outer surface, so that the surface rust prevention and corrosion prevention ability is enhanced.

[0040] Further, as shown in FIG. Figure 1 , 3 7, in the embodiment, valve block 1 is further provided with seventh oil port A and eighth oil port S, seventh oil port A and eighth oil port S are not on the same side of valve block 1, which are spare oil ports.

[0041] Further, as shown in FIG. Figures 1-4 , in the embodiment, further comprising: pressure measuring connector 5, pressure measuring connector 5 is connected with sixth oil port M, for connecting pressure gauge.

[0042] Further, in the embodiment, the coils on the first electromagnetic valve 21, the second electromagnetic valve 22 and the third electromagnetic valve 23 are connected in a DUCHS mode, and the waterproof level is IP67, and the safety is higher.

[0043] Further, in the embodiment, further comprising: a plurality of plugs, the plugs are inserted on the pilot process holes generated in the manufacturing process of the valve block 1.

[0044] Working principle: the first oil port P enters oil, and the oil liquid reaches the second overflow valve 4, the second electromagnetic valve 22 and the first electromagnetic valve 21; the second electromagnetic valve 22 is powered on, and the oil cylinder is quickly extended; the second electromagnetic valve 22 is powered off, and the first electromagnetic valve 21 is powered on, and the oil cylinder is quickly retracted; the third electromagnetic valve 23 is powered on, and the back pressure is generated through the first overflow valve 3, the second electromagnetic valve 22 is powered on, and the oil cylinder is smoothly extended; the second electromagnetic valve 22 is powered off, and the first electromagnetic valve 21 is powered on, and the oil cylinder is smoothly retracted.

[0045] The above, with reference to Figures 1-7 The oil cylinder stable valve group according to the embodiment of the utility model is described, the size of back pressure can be controlled more accurately, the execution element moves more stably; the coils on the electromagnetic valves are connected in a DUCHS mode, the waterproof level is IP67, and the safety is higher; it is high in high-pressure resistance, large flow, and interchangeability of valve parts, can be used in different systems, and the application range is wider; meanwhile, the height integration of plug-in valve parts guarantees that the structure is compact, the volume is small, the occupied space is small, so that the valve group becomes more convenient during installation, repair or cleaning.

[0046] It should be noted that in the present specification, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such processes, methods, articles or devices. Without more limitations, the elements defined by the statement "including" do not exclude the presence of additional identical elements in the process, method, article or device including the elements.

[0047] Although the content of the utility model has been introduced in detail through the above preferred embodiment, it should be recognized that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. A cylinder stabilizing valve group, characterized in that, The valve block is provided with a first oil port, a second oil port, a third oil port, a fourth oil port, a fifth oil port and a sixth oil port. A first electromagnetic valve is in communication with the fourth oil port and is used to control the opening and closing of the fourth oil port. A second electromagnetic valve is in communication with the third oil port and is used to control the opening and closing of the third oil port. A third electromagnetic valve is in communication with the fifth oil port and is used to control the opening and closing of the fifth oil port. A first overflow valve is in communication with the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve respectively. A second overflow valve is in communication with the second oil port and the third electromagnetic valve respectively. The first overflow valve is a direct-acting overflow valve.

2. The rod-stabilizing valve group of claim 1, wherein The second overflow valve is an external overflow valve.

3. The rod-stabilizing valve group of claim 1, wherein The valve block is made of cast iron.

4. The rod-stabilizing valve group of claim 1, wherein The outer surface of the valve block is plated with zinc-nickel alloy.

5. The rod-stabilizing valve group of claim 4, wherein The valve block is further provided with a seventh oil port and an eighth oil port, which are not on the same side of the valve block.

6. The rod-stabilizing valve group of claim 1, wherein A pressure measuring connector is connected to the sixth oil port and is used to connect an external pressure gauge.

7. The rod-stabilizing valve group of claim 1, wherein ​

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