CN218093666U - Throttling one-way throttle valve - Google Patents

Abstract

The utility model discloses a throttle one-way throttle valve relates to one-way throttle valve's technical field, include: the valve comprises a shell, wherein a first cavity is formed in the shell, a valve body is arranged in the first cavity, a second cavity is formed in the valve body, a first throttling hole is formed in one side of the valve body, the second cavity is communicated with the first throttling hole and the first cavity, a first valve port and a second valve port are formed in two ends of the valve body, the first valve port and the second valve port are communicated with the second cavity and the first cavity, a telescopic assembly is arranged in the second cavity, and the telescopic assembly is arranged close to one side of the first valve port. Plug up first valve port through flexible subassembly and make fluid follow the overhead unusual throttle of outflow of throttle and simple structure, easy operation is with low costs, convenient to use.

Description

Throttling one-way throttle valve

Technical Field

The utility model relates to one-way throttle valve's technical field especially involves one-way throttle valve of throttle.

Background

The throttling valve is a valve for controlling the flow of fluid by changing the throttling section or the throttling length, the throttling valve and the one-way valve are connected in parallel to form the one-way throttling valve, the throttling valve and the one-way throttling valve are simple flow control valves, and in a constant displacement pump hydraulic system, the throttling valve is matched with an overflow valve to form three throttling speed control systems, namely an oil inlet path throttling speed control system, an oil return path throttling speed control system and a bypass throttling speed control system. The throttle valve has no flow rate negative feedback function, cannot compensate speed instability caused by load change, and is generally only used in occasions with small load change or low requirement on speed stability.

In the prior art, a line control mode is generally adopted to control the throttle valve to be opened and closed, and each input instruction is converted into an electric signal to control the opening and closing state of the throttle valve, so that the throttle valve is complex in structure, complex in operation and high in cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a throttle one-way throttle valve for solve above-mentioned technical problem.

The utility model adopts the technical scheme as follows:

a throttling one-way throttle valve comprises a shell, wherein a first cavity is formed in the shell, a valve body is arranged in the first cavity, a second cavity is formed in the valve body, a first throttling hole is formed in one side of the valve body, the second cavity is communicated with the first throttling hole and the first cavity, a first valve port and a second valve port are formed in two ends of the valve body, the first valve port and the second valve port are communicated with the second cavity and the first cavity, a telescopic assembly is arranged in the second cavity, and the telescopic assembly is arranged close to one side of the first valve port.

Preferably, a third valve port and a fourth valve port are arranged at two ends of the housing, and the third valve port and the fourth valve port are communicated with the first cavity and the outside.

As a further preference, the first valve port is disposed adjacent to the third valve port, and the second valve port is disposed adjacent to the fourth valve port.

Preferably, a gap is left between the first valve port and the third valve port.

As preferred, flexible subassembly includes flexible hydro-cylinder and shutoff board, the shell is kept away from one side of first orifice is equipped with flexible hydro-cylinder, the shell and all seted up the connecting hole on the valve body, flexible hydro-cylinder's telescopic link is worn to establish the connecting hole is located in the second cavity, flexible hydro-cylinder the lower extreme of telescopic link is equipped with the shutoff board, the shutoff board is located in the second cavity.

Preferably, the diameter of the blocking plate is larger than the diameter of the first valve port.

Preferably, the outer diameter of the valve body is smaller than the inner diameter of the first cavity.

The technical scheme has the following advantages or beneficial effects:

the throttling one-way throttle valve of the application plugs up the first valve port through the telescopic assembly, so that oil flows out of the throttling air in a very throttling mode, the throttling one-way throttle valve is simple in structure, easy to operate and low in cost, and the throttling one-way throttle valve is convenient to use.

Drawings

FIG. 1 is a schematic sectional view of the throttle one-way valve of the present invention;

fig. 2 is an explosion structure schematic diagram of the telescopic assembly of the throttling one-way throttle valve of the present invention.

In the figure: 1. a housing; 11. a first cavity; 12. a third valve port; 13. a fourth valve port; 2. a valve body; 21. a second cavity; 22. a first orifice; 23. a first valve port; 24. a second valve port; 3. a telescoping assembly; 31. a telescopic oil cylinder; 32. a plugging plate.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element 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 appearances of the terms "first," "second," and "third" are only used for descriptive purposes 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" should be interpreted broadly, e.g., as being either 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.

Fig. 1 is the sectional structure schematic diagram of the throttle check valve of the present invention, fig. 2 is the explosion structure schematic diagram of the telescopic assembly of the throttle check valve of the present invention, please refer to fig. 1 to fig. 2, which show a preferred embodiment, an illustrated throttle check valve, including: the valve comprises a shell 1, a first cavity 11 is formed in the shell 1, a valve body 2 is arranged in the first cavity 11, a second cavity 21 is formed in the valve body 2, a first throttle hole 22 is formed in one side of the valve body 2, the second cavity 21 is communicated with the first throttle hole 22 and the first cavity 11, a first valve port 23 and a second valve port 24 are arranged at two ends of the valve body 2, the first valve port 23 and the second valve port 24 are communicated with the second cavity 21 and the first cavity 11, a telescopic assembly 3 is arranged in the second cavity 21, and the telescopic assembly 3 is arranged on one side close to the first valve port 23. A third port 12 and a fourth port 13 are disposed at two ends of the housing 1, and the third port 12 and the fourth port 13 communicate the first cavity 11 with the outside. The first port 23 is disposed near the third port 12, and the second port 24 is disposed near the fourth port 13. A gap is left between the first port 23 and the third port 12. The outer diameter of the valve body 2 is smaller than the inner diameter of the first cavity 11. It is ensured that oil can flow from the first restriction orifice 22 into the first cavity 11 and out of the third valve orifice 12. Wherein, the first valve port 23, the second valve port 24, the third valve port 12 and the fourth valve port 13 are all communicated when the one-way channel is communicated. When the one-way channel is communicated, the telescopic component 3 is positioned at the upper side of the first valve port 23 and does not seal the first valve port 23, and two oil flow paths are a third valve port 12, a first cavity 11 and a fourth valve port 13; a third valve port 12, a first cavity 11 (a gap between the valve body 2 and the housing 1), a first valve port 23 or a first orifice 22, a second cavity 21, a second valve port 24, and the first cavity 11; eventually reaching the fourth port 13.

Further, as an embodiment of a preferred, flexible subassembly 3 includes flexible hydro-cylinder 31 and shutoff board 32, one side that first orifice 22 was kept away from to shell 1 is provided with flexible hydro-cylinder 31, the connecting hole has all been seted up on shell 1 and the valve body 2, the connecting hole is located second cavity 21 to flexible hydro-cylinder 31's telescopic link is worn to establish, the lower extreme of flexible hydro-cylinder 31's telescopic link is provided with shutoff board 32, shutoff board 32 sets up in second cavity 21, flexible hydro-cylinder 31 and connecting hole transition fit, thoroughly seal the connecting hole. The diameter of the blocking plate 32 is smaller than the inner diameter of the first cavity 11 and the diameter of the blocking plate 32 is larger than the diameter of the first valve port 23. The oil can flow through the first cavity 11 (the gap between the valve body 2 and the housing 1) and can also flow out of the first throttle hole 22 of the second cavity 21, and the throttling effect can be achieved by the very small gap between the valve body 2 and the housing 1. When the throttling channel needs to be communicated, the telescopic oil cylinder 31 is started at first, and the telescopic rod of the telescopic oil cylinder 31 extends to drive the blocking plate 32 to move to the position of the first valve port 23 so as to block the first valve port 23. The flow path of the oil may be from the fourth port 13, the first cavity 11, the first orifice 22, the first cavity 11 (the gap between the third port 12 and the first port 23), the second port 24, and the first cavity 11 to the third port 12, similarly to the fourth port 13, the first cavity 11, and the third port 12 directly. The two oil ways flow simultaneously, and the throttling effect can be achieved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope and embodiments of the present invention, and it should be appreciated by those skilled in the art that various equivalent and obvious modifications can be made in the present invention and the description and drawings, and all such modifications are intended to be included within the scope and spirit of the present invention.

Claims (7)

1. A throttling one-way throttle valve is characterized by comprising a shell, wherein a first cavity is formed in the shell, a valve body is arranged in the first cavity, a second cavity is formed in the valve body, a first throttling hole is formed in one side of the valve body, the second cavity is communicated with the first throttling hole and the first cavity, a first valve port and a second valve port are formed in two ends of the valve body, the first valve port and the second valve port are communicated with the second cavity and the first cavity, a telescopic assembly is arranged in the second cavity, and the telescopic assembly is arranged close to one side of the first valve port.

2. The throttle check valve as claimed in claim 1, wherein a third port and a fourth port are provided at two ends of the housing, and the third port and the fourth port communicate the first cavity with the outside.

3. The throttle check valve as recited in claim 2 wherein the first port is disposed adjacent to the third port and the second port is disposed adjacent to the fourth port.

4. The throttle check valve of claim 2, wherein a gap is left between the first port and the third port.

5. The throttle one-way valve according to claim 1, wherein the telescopic assembly comprises a telescopic cylinder and a blocking plate, the telescopic cylinder is disposed on a side of the housing away from the first throttle hole, the housing and the valve body are both provided with connecting holes, a telescopic rod of the telescopic cylinder penetrates through the connecting holes and is located in the second cavity, the blocking plate is disposed at a lower end of the telescopic rod of the telescopic cylinder, and the blocking plate is disposed in the second cavity.

6. The throttle check valve as claimed in claim 5, wherein the diameter of the blocking plate is larger than that of the first port.

7. A throttle check valve as set forth in claim 1 wherein said valve body has an outer diameter less than an inner diameter of said first cavity.

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