Shuttle valve group control signal device

Abstract

The utility model discloses a shuttle valve group control signal device relates to valve group technical field. It includes the top and bottom of shuttle valve block with four plastic screw plug and a pilot oil plug of thread connection installation, and the front of shuttle valve block is with two broken head screw plug of thread connection installation, and the side is with screw plug of thread connection installation, and screw plug is with sealing ring of plane sealing connection installation, and the inside of shuttle valve block is with three shuttle valves of thread connection installation. The utility model discloses shuttle valve group control signal device is small, integrates multiple shuttle valves, can be installed in the required part of each of hydraulic system flexibly, to realize the collection of hydraulic information.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve group technical field, especially shuttle valve group control signal device. BACKGROUND

[0002] In some hydraulic systems, often need to collect the pressure signal of some position to feedback some hydraulic element, and realize the accurate control of this element, at this moment generally will be through shuttle valve to collect, the existing mode is through multiple shuttle valves to complete signal collection, the volume occupies many in practical application, the installation is disorderly, cannot install multiple in some limited installation space parts. SUMMARY

[0003] To solve the problems in the above background art, the purpose of the present application is to provide a shuttle valve group control signal device, which integrates multiple shuttle valves to realize multi-channel signal feedback. The installation volume is small and the assembly is convenient.

[0004] Preferably, a shuttle valve group control signal device, comprising a shuttle valve block, the top and bottom of the shuttle valve block are provided with four plastic screw plugs and a pilot oil plug through threaded connection, the front of the shuttle valve block is provided with two broken head screw plugs through threaded connection, the side is provided with a screw plug through threaded connection, the screw plug is provided with a sealing ring through plane sealing connection, the inside of the shuttle valve block is provided with three shuttle valves through threaded connection.

[0005] Preferably, the shuttle valve block is provided with four oil inlets and one signal output oil port.

[0006] Preferably, the oil inlets at both ends of the shuttle valve block are connected through the shuttle valve.

[0007] Preferably, the signal output oil port of the shuttle valve block is connected with the oil inlet.

[0008] Preferably, the shuttle valve is a steel ball structure.

[0009] Preferably, the shuttle valve is a plug-in type shuttle valve.

[0010] In summary, the technical effects and advantages of the utility model are as follows:

[0011] 1. In the utility model, the shuttle valve group integrates multiple shuttle valves, which can realize the control signal feedback of different oil circuits.

[0012] 2. In the utility model, the shuttle valve group has small structure and can be conveniently connected to the required part of the hydraulic system.

[0013] 3. In the utility model, the shuttle valve is a plug-in type shuttle valve with steel ball structure, which is sensitive and easy to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1It is a front view structural schematic diagram of a shuttle valve group control signal device in the embodiment of the application.

[0015] Figure 2 It is a top view structural schematic diagram of a shuttle valve group control signal device in the embodiment of the application.

[0016] Figure 3 It is Figure 2 It is a sectional view structural schematic diagram at A-A in the embodiment of the application.

[0017] Figure 4a It is a left view structural schematic diagram of a shuttle valve group control signal device in the embodiment of the application.

[0018] Figure 4b It is Figure 4a It is a sectional view structural schematic diagram at B-B.

[0019] Figure 5 It is a shuttle valve structural schematic diagram of a shuttle valve group control signal device in the embodiment of the application.

[0020] Figure 6 It is a hydraulic principle diagram of a shuttle valve group control signal device in the embodiment of the application.

[0021] In the figure: 1, shuttle valve block; 2, broken screw plug; 3, shuttle valve; 4, screw plug; 5, sealing ring; 6, pilot oil plug; 7, plastic screw plug; 3-1, large valve seat; 3-2, conical spring; 3-3, first O-shaped ring; 3-4, steel ball; 3-5, small valve seat; 3-6, second O-shaped ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the application.

[0023] In view of the problems in the prior art, the embodiments of the application provide a shuttle valve group control signal device.

[0024] Embodiment: refer to Figures 1-6The illustrated one shuttle valve group control signal device, including shuttle valve block 1. Shuttle valve block 1 can be any valve block structure in the prior art, such as rectangular valve block. The top and bottom of the shuttle valve block 1 are threadedly connected with four plastic screw plugs 7 and a pilot oil plug 6, the front of the shuttle valve block 1 is threadedly connected with two broken head screw plugs 2, the side is threadedly connected with M14x1.5 screw plug 4, the M14x1.5 screw plug 4 is connected with a sealing ring 5 in a plane sealing manner, and the inside of the shuttle valve block 1 is threadedly connected with three shuttle valves 3.

[0025] Further, in the above scheme, the shuttle valve block 1 is provided with four oil inlets and one signal output oil port.

[0026] Further, in the above scheme, the oil inlets at both ends of the shuttle valve block 1 are communicated through the shuttle valve 3.

[0027] Further, in the above scheme, the signal output oil port of the shuttle valve block 1 is communicated with the oil inlet.

[0028] Further, in the above scheme, the shuttle valve block 1 is made of nodular cast iron.

[0029] Further, in the above scheme, the shuttle valve 3 is a steel ball type structure.

[0030] Further, in the above scheme, the shuttle valve 3 is a plug-in type shuttle valve.

[0031] Among them, as shown in the figure, Figure 5 The shuttle valve 3 includes a large valve seat 3-1 with a cavity, a steel ball 3-4 is arranged in the cavity of the large valve seat 3-1, a conical spring 3-2 is connected to the top of the steel ball 3-4, and one end of the conical spring 3-2 is in contact with the inner wall of the cavity of the large valve seat 3-1 and is fixed; preferably, the small-diameter end of the conical spring 3-2 is connected with the steel ball 3-4, and the large-diameter end extends vertically upward and is in contact with the inner wall of the cavity of the large valve seat 3-1 and is fixed; a small valve seat 3-5 is arranged on the outer periphery of the steel ball 3-4, so as to position the steel ball 3-4. The bottom of the large valve seat 3-1 is open, and the small valve seat 3-5 extends downward from the opening.

[0032] In order to improve the sealing performance of the shuttle valve 3, a sealing groove is arranged on the outer periphery of the large valve seat 3-1 and the small valve seat 3-5, respectively, to accommodate a first O-ring 3-3 and a second O-ring 3-6, respectively.

[0033] The working principle of the utility model is as follows:

[0034] The shuttle valve group control signal device realizes the purpose of feedback transmission of control signal by setting shuttle valves between each oil port and signal collection oil port.

[0035] The shuttle valve group control signal device is small in size, integrates multiple shuttle valves, can be flexibly installed in each required part of the hydraulic system, and realizes collection of hydraulic information.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A shuttle valve assembly control signal device, comprising a shuttle valve block (1), characterized in that: The top and bottom of the shuttle valve block (1) are connected by threads with four plastic plugs (7) and a pilot oil plug (6). The front of the shuttle valve block (1) is connected by threads with two broken plugs (2), and the side is connected by threads with plugs (4). The plugs (4) are connected by a sealing ring (5) with a flat sealing connection. The inside of the shuttle valve block (1) is connected by threads with three shuttle valves (3).

2. The shuttle valve assembly control signal device according to claim 1, characterized in that: The shuttle valve block (1) is provided with four oil inlets and one signal output oil port.

3. The shuttle valve assembly control signal device according to claim 1, characterized in that: The oil inlets at both ends of the shuttle valve block (1) are connected by the shuttle valve (3).

4. The shuttle valve assembly control signal device according to claim 1, characterized in that: The signal output port of the shuttle valve block (1) is connected to the oil inlet.

5. The shuttle valve assembly control signal device according to claim 1, characterized in that: The shuttle valve block (1) is made of ductile iron.

6. The shuttle valve assembly control signal device according to claim 1, characterized in that: The shuttle valve (3) has a steel ball structure.

7. The shuttle valve assembly control signal device according to claim 1, characterized in that: The shuttle valve (3) is a cartridge-type shuttle valve.

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