CN106813823B

CN106813823B - Swift formula manometer switch of many measurement stations

Info

Publication number: CN106813823B
Application number: CN201710188187.6A
Authority: CN
Inventors: 孟利民
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2017-03-27
Filing date: 2017-03-27
Publication date: 2023-03-31
Anticipated expiration: 2037-03-27
Also published as: CN106813823A

Abstract

The invention discloses a multi-measuring-point quick pressure gauge switch which comprises a pressure gauge, a self-closing quick connector sub-body, a connecting hose, a throttle valve connector, a throttle valve, a three-way connector, a stop valve, a gland, a switch frame body, a self-closing quick connector parent body, a pressure oil pipe, an oil return pipe connector, an oil return pipe, a gland nut and a gland screw. The six self-closing quick connector matrixes are fixed in the switch frame body through the gland by gland screws and nuts; the self-closing quick connector sub-body is connected with the pressure gauge through a connecting hose, a throttle valve connector and a throttle valve by utilizing a tee joint. Inserting the self-closing quick coupling daughter into a quick coupling mother body connected with a pressure oil pipe of a certain point to be measured, and measuring the pressure of the point to be measured; when the quick connector sub-body is disconnected with the parent body, the respective valves are closed, and the oil way is disconnected. The switch frame body is easy to process, can realize multi-pressure point test, is convenient to unload, is provided with the throttle valve to play a damping role, and can improve the measurement accuracy of the pressure gauge.

Description

Swift formula manometer switch of multiple measuring points

Technical Field

The invention relates to the field of hydraulic valves, in particular to a multi-measuring-point quick pressure gauge switch.

Background

The pressure gauge is used for detecting and displaying the working pressure of the hydraulic system, and the pressure gauge switch is a device for connecting the pressure gauge and a measured point together and can be divided into a single-measuring-point type and a multi-measuring-point type. The multi-measuring-point pressure gauge switch can effectively reduce the number of pressure gauges in a hydraulic system and simplify pipelines of the hydraulic system. At present, the valve core structure of a multi-measuring-point pressure gauge switch is complex, the processing difficulty is high, and the cost is high. Meanwhile, because the pressure gauge switch is in a normally open state in the hydraulic system, the vibration of the hydraulic system or the sudden change of the load can cause the instantaneous increase of the system pressure, so that the pointer of the pressure gauge swings instantly by a large margin, the measurement precision of the pressure gauge is reduced due to long-time use, and the pressure gauge can be failed or damaged seriously.

Disclosure of Invention

The invention aims to provide a pressure gauge switch which is simple in structure, easy to machine and manufacture, capable of preventing a pressure gauge from being damaged, guaranteeing measurement accuracy and capable of realizing multipoint testing, aiming at the technical defects of the existing pressure gauge switch.

The technical problem to be solved by the invention is realized by adopting the following technical scheme.

The utility model provides a swift formula manometer switch of multiple measuring points, by the manometer, self-closing quick-operation joint daughter, coupling hose, throttle valve connects, choke valve, three way connection, the stop valve, the gland, the switch support body, self-closing quick-operation joint parent, pressure oil pipe, the oil return coupling, return oil pipe, gland nut, gland screw constitute.

Six holes are uniformly distributed on the switch frame body and used for placing the self-closing quick coupling parent body and a central hole for unloading; six self-closing quick connector matrixes are placed in the six uniform distribution holes, and gland covers are mounted on the six self-closing quick connector matrixes and fixed through gland screws and gland nuts; the lower end of the self-closing quick coupling parent body is in threaded connection with a pressure oil pipe of a measured point.

One end of the stop valve is connected to the upper end of the central hole of the switch frame body through threads; the lower end of the central hole of the switch frame body is connected with an oil return pipe through an oil return pipe joint.

The other end of the stop valve is connected with a three-way joint through threads, and the three-way joint is connected with one end of the throttle valve through threads; the self-closing quick connector sub-body is connected with the other end of the throttle valve through a connecting hose and a throttle valve connector; the pressure gauge is connected to the third end of the three-way joint.

The invention relates to a multi-measuring-point quick pressure gauge switch which has the beneficial effects that:

six holes for placing the self-closing quick coupling parent body and a central hole for unloading are uniformly distributed on a switch support of the related pressure gauge switch, and the switch support is simple in structure and easy to machine and manufacture.

The pressure test of multiple test points is conveniently realized by the pressure meter switch through the self-closing quick connector, the test points are conveniently and quickly converted, the using quantity of the pressure meters is effectively saved, and a pipeline for the pressure test is simplified.

The related pressure gauge switch is provided with a throttle valve, has a damping and vibration-reducing effect, can prevent the pressure gauge from being influenced by system vibration impact and sudden load change, and has the function of protecting the measurement precision of the pressure gauge; the pressure gauge switch is provided with a stop valve and is easy to unload.

Drawings

FIG. 1 is a schematic diagram of a multi-point quick pressure gauge switch;

FIG. 2 is an appearance diagram of a multi-point quick pressure gauge switch;

FIG. 3 is a schematic diagram of the operation of a multi-point quick pressure gauge switch.

In the figure: the self-closing type quick connector comprises a pressure gauge 1, a self-closing type quick connector sub-body 2, a connecting hose 3, a throttle valve connector 4, a throttle valve 5, a three-way connector 6, a stop valve 7, a gland 8, a switch frame body 9, a self-closing type quick connector parent body 10, a pressure oil pipe 11, an oil return pipe connector 12, an oil return pipe 13, a gland nut 14 and a gland screw 15.

Detailed Description

As shown in figure 1, the multi-measuring-point quick pressure gauge switch is composed of a pressure gauge 1, a self-closing quick connector sub-body 2, a connecting hose 3, a throttle valve connector 4, a throttle valve 5, a three-way connector 6, a stop valve 7, a gland 8, a switch frame body 9, a self-closing quick connector parent body 10, a pressure oil pipe 11, an oil return pipe connector 12, an oil return pipe 13, a gland nut 14 and a gland screw 15.

As shown in fig. 2 and 3, six placing holes of the self-closing quick coupling parent body 10 and a central hole for unloading are arranged on a switch frame body 9 of the multi-measuring-point quick pressure gauge switch in a winding manner; the six self-closing quick coupling matrixes 10 are placed in six holes of the switch frame body 9, the gland 8 is installed on the six holes, and the six self-closing quick coupling matrixes are fixed through gland nuts 14 and gland screws 15.

As shown in fig. 2, one end of the stop valve 7 is connected to the upper end of the central hole of the switch frame body 9 through a thread, and the other end of the stop valve 7 is connected to the three-way joint 6 through a thread;

the three-way joint 6 is in threaded connection with one end of the throttle valve 5; the self-closing quick connector sub body 2 is connected with the other end of the throttle valve 5 through a connecting hose 3 and a throttle valve connector 4; the pressure gauge 1 is connected to a third end of the three-way joint 6;

the lower end of the self-closing quick joint matrix 10 is in threaded connection with a pressure oil pipe 11 of a measured point (P1-6);

the lower end of the central hole of the switch frame body 9 is in threaded connection with an oil return pipe 13 of an oil return pipeline (T) through an oil return pipe joint 12.

As shown in fig. 2 and 3, when the self-closing quick connector works, the self-closing quick connector daughter 2 is inserted into a certain quick connector mother body 10, and a sealed oil path can be formed between the self-closing quick connector daughter and a certain measured point; the pressure oil from the measured point reaches the pressure gauge 1 through the quick connector parent body 10, the quick connector child body 2, the connecting hose 3 and the throttle valve 5, and the pressure value of the measured point is measured;

the pressure sudden change can be caused by the vibration of a hydraulic system or the sudden change of load, the throttle valve 5 has a damping vibration attenuation function, pressure oil can buffer the influence of the oil pressure sudden change on the pressure gauge 1 through the throttle valve 5, the pointer of the pressure gauge is prevented from swinging violently, and the measurement accuracy of the pressure gauge is ensured;

when the self-closing quick connector daughter 2 is pulled out of the quick connector mother body 10, the valves of the quick connector daughter 2 and the quick connector mother body 10 are closed, and the oil way is cut off instantly;

before measurement, the stop valve 7 can be opened, and residual oil of a measurement oil way can flow back to the oil tank through the oil return pipe 13, so that the oil way is convenient to unload.

Finally, it should be noted that: the above description and accompanying drawings illustrate the general principles, features and advantages of this patent. The invention is only a preferred embodiment of the invention, and is not limited to the embodiment. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And obvious changes and modifications can be made without departing from the scope of the present invention.

Claims

1. The utility model provides a swift formula manometer switch of many measurement stations, by the manometer, self-closing quick-operation joint daughter, coupling hose, the throttle valve connects, the choke valve, three way connection, the stop valve, the gland, the switch support body, the self-closing quick-operation joint parent, pressure oil pipe, the oil return coupling, return oil pipe, gland nut, gland screw constitutes its characterized in that: six holes are uniformly distributed on the switch frame body and used for placing the self-closing quick coupling parent body and a central hole for unloading; the six self-closing quick connector matrixes are placed in the six uniform distribution holes, the glands are mounted on the six self-closing quick connector matrixes, and the six self-closing quick connector matrixes are fixed through gland screws and gland nuts; the lower end of the self-closing quick joint matrix is in threaded connection with a pressure oil pipe of a measured point; the lower end of the central hole of the switch frame body is connected with an oil return pipe through an oil return pipe joint.

2. The multipoint shortcut pressure gauge switch as claimed in claim 1, wherein: one end of the stop valve is connected to the upper end of the center hole of the switch frame body through threads, and the other end of the stop valve is connected to the three-way joint through threads.

3. The multi-point quick pressure gauge switch of claim 1, wherein: the three-way joint is in threaded connection with one end of the throttle valve; the self-closing quick connector sub-body is connected with the other end of the throttle valve through a connecting hose and a throttle valve connector; the pressure gauge is connected to the third end of the three-way joint.