CN218000018U

CN218000018U - Unloading valve group

Info

Publication number: CN218000018U
Application number: CN202221832021.6U
Authority: CN
Inventors: 易君; 陈建勋; 胡北喜; 程国辉
Original assignee: Shanghai Zhongcheng Precision Machinery Co ltd
Current assignee: Shanghai Zhongcheng Precision Machinery Co ltd
Priority date: 2022-07-17
Filing date: 2022-07-17
Publication date: 2022-12-09
Anticipated expiration: 2032-07-17

Abstract

The utility model relates to an off-load valves technical field just discloses an off-load valves, including the valve piece, the check valve is installed to the right-hand member of valve piece, the off-load valve is installed to the rear end of valve piece, the avris of valve piece left end is provided with first connector, the right-hand member of valve piece is provided with the second connector, the avris that the left end of valve piece is located first connector is provided with the third connector, the front end of valve piece is provided with the fourth connector, the up end of valve piece is provided with the fifth connector. According to the unloading valve group, when the pressure reaches the set pressure of the valve, the unloading valve opens the oil to directly flow to the second connector from the first connector, so that the low-pressure pump motor is in no-load, energy is saved, consumption is reduced, and the practicability is improved.

Description

Unloading valve group

Technical Field

The utility model relates to an off-load valves technical field specifically is an off-load valves.

Background

The unloading valve is a valve which can unload the hydraulic pump under a certain condition, usually an overflow valve with a two-position two-way valve (usually an electromagnetic valve), and has the function of setting the main pressure of the system (oil pump) when the unloading valve is not unloading, when the unloading valve is in an unloading state (switched by the action of the two-position two-way valve), the pressure oil directly returns to an oil tank, the pressure of the oil pump is reduced to be approximately zero, so as to realize the control of some loops and improve the service life of the oil pump, and reduce the power consumption.

The existing unloading valve group has a single structure, causes the low-pressure pump to be in a working condition during unloading, increases the energy consumption and has low practicability.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an unloading valves to the current unloading valves structure that proposes in solving above-mentioned background art is comparatively single, and the low-pressure pump is in the working condition when causing the off-load, has increased the consumption of the energy, the lower problem of practicality.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an off-load valves group, includes the valve piece, the check valve is installed to the right-hand member of valve piece, the off-load valve is installed to the rear end of valve piece, the avris of valve piece left end is provided with first connector, the right-hand member of valve piece is provided with the second connector, the avris that the left end of valve piece is located first connector is provided with the third connector, the front end of valve piece is provided with the fourth connector, the up end of valve piece is provided with the fifth connector.

Preferably, the first connection port is a low-pressure pump outlet, so that the low-pressure pump system can be conveniently adapted to.

Preferably, the second connecting port is an oil return port, and an oil liquid loop is formed.

Preferably, the third connector is an oil discharge port, and the third connector is connected with an oil return tank through a pipeline, so that oil can be conveniently refluxed and collected.

Preferably, the fourth connecting port is connected with the actuating mechanism or the energy accumulator through a pipeline, so that oil can be conveniently supplemented to the energy accumulator.

Preferably, the fifth connecting port is a pressure measuring port, so that pressure can be conveniently measured.

Compared with the prior art, the utility model provides an off-load valves possesses following beneficial effect:

according to the unloading valve group, when the pressure reaches the set pressure of the valve, the unloading valve opens the oil to directly flow to the second connector from the first connector, so that the low-pressure pump motor is in no-load, energy is saved, consumption is reduced, and the practicability is improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a side view schematic structure diagram of the present invention;

fig. 4 is a schematic structural diagram of the operation principle of the connector according to the present invention.

In the figure: 1. a valve block; 2. a one-way valve; 3. an unloading valve; 11. a first connection port; 12. a second connection port; 13. a third connection port; 14. a fourth connection port; 15. and a fifth connecting port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-4, the present invention provides a technical solution: an unloading valve group comprises a valve block 1, wherein a check valve 2 is installed at the right end of the valve block 1, and an unloading valve 3 is installed at the rear end of the valve block 1, so that the valve group can be conveniently controlled;

the avris of the left end of the valve block 1 is provided with a first connecting port 11, the first connecting port 11 is a low-pressure pump outlet, the right end of the valve block 1 is provided with a second connecting port 12, the second connecting port 12 is an oil return port, the avris of the left end of the valve block 1, which is located in the first connecting port 11, is provided with a third connecting port 13, the third connecting port 13 is an oil discharge port, the third connecting port 13 is connected with an oil return tank through a pipeline, the front end of the valve block 1 is provided with a fourth connecting port 14, the fourth connecting port 14 is connected with an execution mechanism or an energy accumulator through a pipeline, the upper end face of the valve block 1 is provided with a fifth connecting port 15, the fifth connecting port 15 is a pressure measuring port, when the pressure reaches the set pressure of the valve, the unloading valve 3 opens the oil, the oil directly flows to the second connecting port 12 through the first connecting port 11, the low-pressure pump motor is enabled to be idle, energy conservation and consumption reduction are achieved, and practicability is improved.

The working principle is as follows: firstly, install and fix valve block 1, then export through the first connector 11 adaptation low pressure pump, second connector 12 connects back the oil pipe way, third connector 13 is put through with returning the oil tank through the pipeline, fourth connector 14 passes through tube coupling actuating mechanism or energy storage ware, be located the pressure measurement mouth through fifth connector 15 at last, thereby the pressure of survey valves, after pressure reached the settlement pressure of valve, off-load valve 3 opened fluid and directly flowed to second connector 12 by first connector 11, make low pressure pump motor unloaded, thereby energy saving and consumption reduction, the practicality has been improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An unloading valve group comprises a valve block (1), and is characterized in that: check valve (2) are installed to the right-hand member of valve piece (1), unloading valve (3) are installed to the rear end of valve piece (1), the avris of valve piece (1) left end is provided with first connector (11), the right-hand member of valve piece (1) is provided with second connector (12), the avris that the left end of valve piece (1) is located first connector (11) is provided with third connector (13), the front end of valve piece (1) is provided with fourth connector (14), the up end of valve piece (1) is provided with fifth connector (15).

2. A valve manifold according to claim 1, characterised in that: the first connecting port (11) is a low-pressure pump outlet.

3. A valve manifold according to claim 1, characterised in that: the second connecting port (12) is an oil return port.

4. A set of unloader valves according to claim 1, wherein: the third connecting port (13) is an oil unloading port, and the third connecting port (13) is connected with an oil return tank through a pipeline.

5. A valve manifold according to claim 1, characterised in that: the fourth connecting port (14) is connected with an actuating mechanism or an energy accumulator through a pipeline.

6. A valve manifold according to claim 1, characterised in that: the fifth connecting port (15) is a pressure measuring port.