CN110617345A

CN110617345A - Rectifier stop valve

Info

Publication number: CN110617345A
Application number: CN201910897683.8A
Authority: CN
Inventors: 范宝龙
Original assignee: Jiangsu Longyang Power Equipment Co Ltd
Current assignee: Jiangsu Longyang Power Equipment Co Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2019-12-27

Abstract

The invention discloses a rectifier stop valve, which comprises a valve body, wherein the valve body is arranged inside the bottom side of a rectifier, the front side of the valve body is combined with a pipe, and a cavity is formed inside the pipe. A ball installed in a chamber of the valve body and rotated and operated by an operation of the lever; in the state of the inner space, the supply of the working oil is prevented by preventing the connection between the inside of the commutator and the tube according to the rotation motion of the ball, the through hole penetrates the center of the ball, and the supply of the working oil is prevented. The rectifier is connected to the tube. The present invention provides a stop valve rectifier which is embedded in the interior of a stop valve to reduce the necessary installation space of the stop valve rectifier and to perform maintenance and inspection work by not extracting operating oil and other hydraulic system rectifiers from the interior. In the check valve of the rectifier, in order to prevent the working oil stored in the rectifier from being supplied to the hydraulic system through the pipe, the check valve forming the rectifier of the present invention mounts the check valve of the rectifier inside the bottom side.

Description

Rectifier stop valve

Technical Field

The present invention relates to a low oil level shutoff valve, and more particularly, to a low oil level shutoff valve that can reduce a space required for installation of low oil and remove oil in the low oil level by installing the shutoff valve in the low oil level. Low organic pressure shut-off valve technical field the present invention relates to a low organic pressure shut-off valve that enables repair and inspection of organic and other hydraulic devices.

Background

Hydraulic actuators are widely used for actuators requiring strong power, such as heavy construction equipment and machine tools. In a general hydraulic actuator, the electric motor and the hydraulic pump should be always operated regardless of the operation state of the hydraulic cylinder. In addition, in a state where a load acts on the hydraulic cylinder (or the hydraulic motor), in order to stop the hydraulic actuator at any position, it is necessary to continuously operate the hydraulic actuator in order to prevent reverse rotation and forward movement of the external load.

In order to continuously supply hydraulic oil to the hydraulic drive apparatus as described above, a space for storing hydraulic oil is required in addition to the electric motor and the hydraulic pump, and a place for storing such hydraulic fluid is generally called a low tank (low tank).

The oil reservoir and the hydraulic pump are generally connected through a pipe, and at this time, in order to repair the oil reservoir or the hydraulic pump or other various hydraulic devices, the supply of the hydraulic oil must be temporarily stopped, and for this reason, the hydraulic oil stored in the oil reservoir is generally used. After all of them are taken out, repair work is performed and workability is poor, there is a problem that the working oil flows out from the low oil.

For this reason, in recent years, a shut valve for controlling the supply of hydraulic oil is installed outside the oil tank to shut off the supply of hydraulic oil stored in the oil tank during maintenance, but if the shut valve is installed outside the oil tank, an installation space is required. As a result, there is a disadvantage of limiting a large amount of space.

Disclosure of Invention

Therefore, an object of the present invention devised to solve the problem lies on providing a low organic shut-off valve that reduces the space required for installing the shut-off valve by embedding the shut-off valve into a reservoir.

Another technical problem to be solved by the present invention is to provide a low-organic shut-off valve to perform maintenance and inspection work of low oil and other hydraulic devices without having to empty the oil in the low oil.

The present invention for achieving the above object is a low organic cut-off valve for preventing the supply of hydraulic oil stored in an oil reservoir to a hydraulic device through a pipe, characterized in that the cut-off valve is installed on an inner bottom surface of the oil reservoir.

A shut-off valve is installed on an inner bottom surface of the oil reservoir, a pipe is connected with the front portion, a valve body is formed in a chamber, a ball is installed in a cavity of the valve body, the ball is rotated by an operation of a control lever and is formed at the center and includes a through hole for blocking a supply of the working oil by blocking a connection of the inside of the reservoir with the pipe according to a rotation operation of the ball in a state where the inner space of the reservoir and the inside of the pipe are connected with each other. Preferably, the configuration is performed.

An end cover is coupled to a rear portion of the valve body, and an inlet for introducing hydraulic oil stored in the lubricator into a chamber of the valve body is formed at a center of the end cover.

The invention has the effect that the stop valve inside the liquid reservoir reduces the installation space required for installing the stop valve, so that the stop valve is not limited in the space due to the installation of the liquid reservoir.

In addition, the present invention allows repair and inspection work of the oil storage apparatus and other hydraulic devices to be performed without having to remove oil inside the oil storage apparatus to improve workability and problems such as outflow of hydraulic oil from the oil reservoir during maintenance. It has a solvable effect.

Drawings

Fig. 1 is a front view showing an oil reservoir equipped with a shut-off valve according to the present invention;

fig. 2 is a perspective view showing the structure of the shutoff valve;

fig. 3 is a view showing in detail the sectional structure of the shutoff valve by being taken along line AA of fig. 2;

fig. 4 is a diagram showing a state in which the supply of the hydraulic oil is shut off by operating the shutoff valve shown in fig. 3.

In the figure: 10 stop valves, 20 valve bodies, 22 chambers, 30 balls, 32 through holes, 34 connecting grooves, 40 end covers, 42 air inlets, 50 levers, 52 connecting protrusions, 100 oil storage spaces, 200 storage spaces and 300 pipelines.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, representative embodiments of the present invention will be given to achieve the above technical problems. Other embodiments proposed by the present invention may be substituted by the description in the configuration of the present invention.

Fig. 1 is a front view showing a reservoir equipped with a shut-off valve according to the present invention.

As shown in fig. 1, the oil reservoir 100 is a pump (not shown) and a pipe (hereinafter referred to as a hydraulic apparatus) for supplying hydraulic oil from, for example, a hydraulic actuator to a hydraulic cylinder (not shown). It is connected to a tank 300 for storing a predetermined amount of hydraulic fluid in the internal storage space 200 so that hydraulic oil can be supplied to the hydraulic device according to the driving of the pump.

On the other hand, the shut-off valve 10 implemented in the present invention is mounted on the inner bottom surface of the reservoir 100.

The shutoff valve 10 is a device provided for controlling the supply of the hydraulic oil stored in the oil reservoir 100 when the supply of the hydraulic oil temporarily stops the supply of the hydraulic oil in the oil reservoir 100.

In particular, the present invention reduces the installation space required to install the shut-off valve 10 space according to the installation of the reservoir 100 by installing the shut-off valve 10 on the bottom surface of the reservoir 100 in the internal storage space 200. It is characterized by no adjudication limitation.

Fig. 2 is a view showing the configuration of the shut valve from three dimensions, and fig. 3 is a view showing the sectional structure of the shut valve in detail along line AA of fig. 1.

As shown in fig. 2 and 3, the shut-off valve 10 includes a valve body 20, a ball 30, an end cap 40, and a stem 50.

The valve body 20 constitutes the outer shape of the shut-off valve 10 and is mounted on the bottom surface of the reservoir 100 in the form of a rectangular parallelepiped.

A chamber 22 is formed inside the valve body 20 to allow hydraulic oil stored in the storage device 200 to be introduced into the storage body 200. A conduit 300 for supplying hydraulic equipment is constructed.

A ball 30 is installed in the chamber 22 of the valve body 20, the ball 30 being a means for performing a rotating operation according to the operation of the lever 50.

A through hole 32 is formed in the center of the ball 30, and the through hole 32 connects the inlet 42 of the end cap 40 with a tube 300 connected to a hydraulic device. And communicates (connects) to pass hydraulic oil so that the hydraulic oil stored in the oil tank 100, the internal storage space 200 can be supplied to the hydraulic devices through the pipe 300 and the operation of the operation lever 50. The connection between the inlet 42 and the tube 300 serves to block the supply of hydraulic oil when the ball 30 is rotated.

A sealing member 26 is installed between the ball 30 and the chamber 22 of the valve body 20 to have airtightness.

The end cap 40 is screwed into a fastening hole 24 formed at the rear of the valve body 20 and is disposed in the inner cavity 22 of the valve body 20. The airtightness is increased by pressing the ball 30 and the sealing member 26 against each other. An inlet 42 is formed at the center of the end cover 40, and the working oil stored in the reservoir 100 is introduced into the chamber 22 of the valve body 20 through the inlet 42.

The lever 50 is assembled to the side of the valve body 20, and the means for rotating the ball 30 is installed in the chamber 22 of the valve body 20 with the upper surface outside the oil reservoir 100. In a state where the coupling protrusion 52 is formed on the bottom surface of the coupling protrusion 52, the coupling protrusion 52 is inserted into the coupling groove 34 formed in the outer diameter of the ball 30. Thus, the ball 30 is configured to rotate.

The cover 54 is fitted to the outer diameter of the lever 50, and the cover 54 is bolted to the reservoir 100 and fixed so that the lever 50 does not come off the reservoir 100.

Hereinafter, the operation of the shut-off valve of the accumulator according to the present invention will be described with reference to fig. 1 to 4.

First, in supplying the hydraulic oil stored in the reservoir 100 to the various hydraulic devices through the various pipes, it is necessary to temporarily stop the supply of the hydraulic oil to repair the reservoir 100 or the hydraulic devices. At this time, the supply of the working oil stored in the oil reservoir is cut off by operating the cut-off valve 10 installed on the bottom surface of the oil reservoir 100.

That is, as shown in fig. 4, when the operating lever 50 is exposed to the outside of the oil reservoir 100 and rotated in one direction, the ball 30 installed in the chamber 22 of the valve body 20 is rotated on the operating lever. Returning to the rotation direction of 50, a through hole 32 is formed at the center of the ball 30, and the inlet 42 of the cap 40 and the tube 300 communicate with each other through the through hole 32. When the ball 30 is rotated by the lever 50 in this state, the connection of the inlet 42 and the tube 300 is blocked, and thus, the supply of the hydraulic oil stored in the reservoir 100 can be prevented.

Claims

1. A rectifier cut-off valve, in the low oil organic gas cut-off valve, the cut-off valve 10 is a device supplying the hydraulic oil stored in the oil reservoir 100 to the hydraulic device through the pipe 300, the cut-off valve 10 is the internal storage space 200 of the oil reservoir 100, the low oil level cut-off valve is characterized by being installed on the bottom surface.

2. The method according to claim 1, wherein the cut-off valve 10 and the valve body 20 are installed on the bottom surface of the inner storage space 200 of the oil storage unit 100, and have a pipe 300 connected to the front thereof and formed with a chamber 22, a ball 30 is installed in the chamber 22 of the valve body 20 and rotated by a manipulation lever 50, which is formed through the center of the ball 30 and according to the rotating operation of the ball 30 in a state that the inner storage space 200 of the storage 100 and the pipe 300 are connected to each other, and a low organic gas cut-off valve, characterized by comprising a through hole 32, the through hole 32 blocking the supply of the working oil by blocking the connection of the inner storage space 200 and the pipe (300).

3. According to claim 2, the end cap 40 is coupled to the rear of the valve body 20, the operating oil stored in the oil reservoir 100 is located at the center of the end cap 40 of the valve body 20, and the inorganic shut-off valve for flowing through the chamber 22 is characterized in that a through hole is formed.

4. The control device according to claim 2, wherein an upper surface of the lever 50 is exposed to the outside of the lubricator 100, the engaging protrusion 52 is formed to protrude from the lower surface, an outer diameter of the ball 30 is the lever 50, and the coupling groove 34 for fitting the engaging protrusion 52 is formed in a concave shape.