CN209743268U - Shuttle type differential circuit device of hydraulic valve set - Google Patents

Abstract

The utility model discloses a hydraulic valve group shuttle-type differential circuit device, which comprises a valve body, the valve body has opening and closing port, and opening and closing port are located the same side face of the valve body, and a chamber A, a chamber B and a chamber C are opened in the valve body, the chamber B is located the chamber C tail end, and the chamber A is located the chamber C middle part, and is equipped with the shuttle case in the chamber C, be equipped with the plug in the closing port, the chamber B is rodless chamber, and the chamber A is the chamber with the pole, is equipped with a check valve in the chamber A, is equipped with two check valves in the chamber B; according to the technical scheme, the shuttle valve core is directly embedded into the hydraulic valve body, so that the differential circuit control is realized without externally installing an electromagnetic valve or other valves, the structure that the shuttle valve core is embedded into the valve group replaces the externally installed electromagnetic valve or other valves to realize the differential circuit device structure, the defects that the whole valve group is overlarge in size, needs an electric supply signal in the control process and is irregular in appearance are overcome, and some valves are omitted, so that the cost is reduced.

Description

Shuttle type differential circuit device of hydraulic valve set

Technical Field

The utility model relates to a hydraulic pressure differential mechanism specifically is a shuttle formula differential circuit device of hydrovalve group.

Background

The function of the differential circuit is as follows: when the rodless cavity is filled with oil, the oil in the rod cavity directly returns to the rodless cavity by utilizing the area difference of the rods and the rodless cavity, so that the quick action is realized.

The traditional hydraulic differential circuit has various forms, all of which are formed by installing electromagnetic valves or using 2-3 hydraulic control valves, the oil circuit control of the traditional hydraulic differential circuit can be realized only by supplying electric signals when differential action is needed, and meanwhile, the traditional hydraulic differential circuit is influenced by factors such as the flow rate, the response speed and the shape of the electromagnetic valves and is relatively complex to control.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic valve group shuttle-type differential circuit device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

The utility model provides a hydraulic valve group shuttle formula differential circuit device, includes the valve body, the valve body has opening and closing port, and opening and closing port lie in the valve body with one side, seted up A chamber, B chamber and C chamber in the valve body, the B chamber lies in C chamber tail end, and the A chamber lies in C chamber middle part to be equipped with the shuttle case in the C chamber, be equipped with the plug in the closing port, the B chamber is the rodless chamber, and the A chamber is for having the pole chamber, is equipped with a check valve in the A chamber, is equipped with two check valves in the B chamber.

As the preferred scheme of the utility model: a plug is arranged above the cavity B.

Compared with the prior art, the beneficial effects of the utility model are that: according to the technical scheme, the shuttle valve core is directly embedded into the hydraulic valve body, so that the differential circuit control is realized without externally installing an electromagnetic valve or other valves, the structure that the shuttle valve core is embedded into the valve group replaces the externally installed electromagnetic valve or other valves to realize the differential circuit device structure, the defects that the whole valve group is overlarge in size, needs an electric supply signal in the control process and is irregular in appearance are overcome, and some valves are omitted, so that the cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the present invention.

In the figure, 1-opening port, 2-closing port, 3-joint, 4-C cavity, 5-shuttling valve core, 6-A cavity, 7-plug and 8-B cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

Referring to fig. 1-2, a shuttle-type differential circuit device of a hydraulic valve set comprises a valve body, wherein the valve body is provided with an opening port 1 and a closing port 2, the opening port 1 and the closing port 2 are positioned on the same side surface of the valve body, a cavity a 6, a cavity B8 and a cavity C4 are arranged in the valve body, the cavity B8 is positioned at the tail end of the cavity C4, the cavity a 6 is positioned in the middle of the cavity C4, a shuttle valve core 5 is arranged in the cavity C4, a plug is arranged in the closing port 2, the cavity B8 is a rodless cavity, the cavity a 6 is a rod cavity, a one-way valve is arranged in the cavity a 6, two one-way valves are arranged in the cavity B8, when the device works, pressure oil directly pushes the bottom of the shuttle valve core 5 from an inlet of the closing port 2 to move so as to connect the cavity a 6 with the cavity C4, and the cavity B8; after the direction is changed, pressure oil enters from the opening port 1 and then pushes the shuttle valve core 5 to press the joint 3, so that the cavity A6 and the cavity B8 are connected, at the moment, oil enters into the rodless cavity, namely the cavity B8, and oil and liquid in the rod cavity, namely the cavity A6 directly return to the rodless cavity from the loop, so that a differential loop is realized, and the opening speed is accelerated.

The device realizes a differential circuit, omits an electromagnetic valve or other hydraulic control valves, realizes differential control by using a simple shuttle function, and is a very economical and practical control scheme; from the aspect of control, the control of the differential circuit can be automatically changed along with the conversion of oil liquid, the function of the differential circuit can be achieved without needing an electric signal to control the electromagnetic valve, and the control method is simple and effective; the device adopts a mode of arranging the shuttle valve core 5 in the single valve body, saves redundant devices such as an electromagnetic valve, a hydraulic control valve and the like, has small volume, reduces the requirement of installation space, and has compact structure, thereby improving the overall response speed of the device and having quicker response.

Example 2:

On the basis of embodiment 1, be equipped with end cap 7 above B chamber 8, end cap 7 is used for carrying out the inside sealed work of multi-chamber of valve body to conveniently overhaul when the device goes wrong.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The shuttle type differential circuit device of the hydraulic valve group comprises a valve body, wherein the valve body is provided with an opening (1) and a closing (2), and is characterized in that an A cavity (6), a B cavity (8) and a C cavity (4) are arranged in the valve body, the B cavity (8) is positioned at the tail end of the C cavity (4), the A cavity (6) is positioned in the middle of the C cavity (4), a shuttle valve core (5) is arranged in the C cavity (4), the B cavity (8) is a rodless cavity, and the A cavity (6) is a rod cavity.

2. A hydrovalve unit shuttling differential circuit device as claimed in claim 1 wherein the opening port (1) and the closing port (2) are located on the same side of the valve body.

3. a shuttled differential circuit device for hydraulic valve groups, as in claim 1, characterized in that said closing port (2) is internally provided with a plug.

4. A hydrovalve train shuttling differential circuit device as claimed in claim 1 wherein one check valve is located in chamber a (6) and two check valves are located in chamber B (8).

5. A hydrovalve unit shuttling differential circuit device as claimed in any one of claims 1-4 characterized in that a plug (7) is provided above the B chamber (8).