CN220398823U

CN220398823U - Operation box testing device

Info

Publication number: CN220398823U
Application number: CN202320460271.XU
Authority: CN
Inventors: 徐辉阳
Original assignee: Fujian Chengtuo Electrical Equipment Co ltd
Current assignee: Fujian Chengtuo Electrical Equipment Co ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2024-01-26
Anticipated expiration: 2033-03-13

Abstract

The utility model relates to the field, in particular to an operation box testing device, which comprises an air pressure adjusting structure and an air pressure detecting structure, wherein the air pressure adjusting structure comprises a tee joint, the pipe orifices at the left side and the right side of the tee joint are respectively connected with an inflating end of an inflating pump and an air suction end of a vacuum pump through connecting pipes, a switch valve B is arranged on the connecting pipes of the tee joint and the inflating pump, a switch valve A is arranged on the connecting pipes of the tee joint and the vacuum pump, a conveying pipe is arranged at the front side pipe orifice of the tee joint, a pressure relief pipe is arranged on the conveying pipe, a switch valve C is arranged on the pressure relief pipe, the air pressure detecting structure comprises a detection box body for placing an operation box, the detection box body is provided with an extension cylinder, the conveying pipe is provided with a sealing ring, the conveying pipe extends into and is extruded and attached to the inner wall of the extension cylinder, and the air pressure detecting structure further comprises an air pressure conveying box placed in the operation box body.

Description

Operation box testing device

Technical Field

The utility model relates to the field of testing devices, in particular to an operation box testing device.

Background

The operation box is matched equipment of a light high-voltage test transformer, has the characteristics of excellent performance, multiple functions, small volume, light weight, reliable use, attractive appearance, convenient operation and maintenance and the like, has high air tightness requirements, and the air tightness directly influences the safety and the reliability of the equipment, so that the air tightness detection of the equipment is particularly important, and the water immersion detection method or the deviation degree judgment directly through the barometer is more applied to the air tightness detection at present;

the detection method is single in common detection method in the market, and the detection result is not accurate, so an operation box testing device is provided for the problems.

Disclosure of Invention

The utility model aims to provide an operation box testing device, which is provided with an inflator pump and a vacuum pump besides a detection box body, so that two different air pressure testing methods can be carried out on the operation box in the detection box body, the detection mode is more diversified, and meanwhile, the accuracy of the detection result is also increased, so that the problems in the background technology are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a test device for an operation box,

as a preferable scheme, the air pressure adjusting structure comprises a tee joint, the pipe orifices at the left side and the right side of the tee joint are respectively connected with the inflating end of the inflator pump and the air suction end of the vacuum pump through connecting pipes, a switching valve B is arranged on the connecting pipe of the tee joint and the inflator pump, a switching valve A is arranged on the connecting pipe of the tee joint and the vacuum pump, a conveying pipe is fixedly arranged at the front side pipe orifice of the tee joint, a pressure relief pipe is arranged on the conveying pipe, and a switching valve C is arranged on the pressure relief pipe;

the air pressure detection structure comprises a detection box body used for placing the operation box;

an extension cylinder penetrating through the rear side panel is arranged on the rear side panel of the detection box body, a sealing ring is arranged on the outer wall, close to the pipe orifice, of the front side of the conveying pipe, the conveying pipe stretches into the extension cylinder to be connected to the inner side of the detection box body, and the sealing ring on the conveying pipe is extruded and attached with the inner wall of the extension cylinder;

the air pressure detection structure further comprises an air pressure conveying box placed in the operation box body.

As a preferable scheme, an open-close airtight door is arranged on the front side panel of the detection box body, and a sealing ring attached to the opening of the detection box body is arranged on the front side panel of the airtight door.

As a preferable scheme, the rear end of the extension cylinder is fixedly provided with a first flange, the front end of the conveying pipe is provided with a second flange, the second flange is tightly attached to the first flange when the conveying pipe stretches into the extension cylinder, the first flange is provided with a bolt, and the first flange is connected with the second flange through a bolt thread.

As a preferable scheme, the right side panel of the air pressure transmission box is provided with an air pressure transmitter, the signal output end of the air pressure transmitter is connected with the signal receiving end of the singlechip through an electric signal, and the singlechip is connected to the wireless communication module through a serial port line.

As a preferred scheme, the top panel of the detection box body is provided with a control box, an air pressure sensor is arranged on an output pipe, a PLC controller is arranged in the control box, the output end of the air pressure sensor is connected with a signal receiving end of the PLC controller through an electric signal, a wireless transmission module is arranged in the control box, the receiving end of the PLC controller is connected with the wireless transmission module through a serial port line, a relay A, a relay B and a relay C are respectively arranged in the control box, and signal access ends of the relay A, the relay B and the relay C are connected to a signal output end of the PLC controller through wires.

As a preferable scheme, the inflator pump and the switch valve B circuit receiving end are connected to the relay A circuit output end in a parallel mode, the vacuum pump and the switch valve A circuit receiving end are connected to the relay B circuit output end in a parallel mode, and the switch valve C circuit receiving end is connected to the relay C circuit output end through a wire.

As a preferable scheme, a placing rack is arranged on the inner side of the detection box body.

According to the technical scheme provided by the utility model, the operation box testing device provided by the utility model has the beneficial effects that:

1. the operation box can be detected in a pressure-increasing or pressure-reducing airtight test mode, the detection mode is not single, and meanwhile, the detection result is more accurate.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a test device for an operation box according to the present utility model;

FIG. 2 is a schematic diagram showing the overall structure of a detection box of the operation box testing device of the present utility model;

FIG. 3 is a schematic diagram of a transport pipe structure of an operation box testing device according to the present utility model;

FIG. 4 is a schematic diagram of an air pressure transmitter of an operation box testing device according to the present utility model;

FIG. 5 is a schematic diagram of a PLC controller structure of an operation box testing device according to the present utility model;

FIG. 6 is a schematic diagram of a transport pipe structure of an operation box testing apparatus according to the present utility model.

In the figure: 1. detecting a box body; 11. a wireless transmission module; 12. an airtight door; 13. a PLC controller; 14. a seal ring; 15. a relay C; 16. an extension cylinder; 17. a control box; 18. a placing rack; 19. a first flange; 110. a relay A; 111. a relay B; 2. a tee joint; 21. an inflator pump; 22. a vacuum pump; 23. a switch valve A; 24. a delivery tube; 25. a switch valve B; 26. an air pressure sensor; 27. a bolt; 28. a seal ring; 29. a second flange; 210. a connecting pipe; 211. a switch valve C; 212. a pressure relief tube; 3. an air pressure transmission instrument; 31. an air pressure transmitter; 32. a wireless communication module; 33. a single chip microcomputer; 34. and a storage battery.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In order to better understand the above technical solutions, the following detailed description will be given with reference to the accompanying drawings and the specific embodiments.

As shown in fig. 1 to 4, an embodiment of the present utility model provides an operation box testing apparatus, including:

the air pressure adjusting structure comprises a tee joint 2, pipe orifices at the left side and the right side of the tee joint 2 are respectively connected with an inflating end of an inflator pump 21 and an air suction end of a vacuum pump 22 through connecting pipes 210, a switch valve B25 is arranged on the connecting pipes 210 of the tee joint 2 and the inflator pump 21, a switch valve A23 is arranged on the connecting pipes 210 of the tee joint 2 and the vacuum pump 22, a conveying pipe 24 is fixedly arranged at the front side pipe orifice of the tee joint 2, a pressure relief pipe 212 is arranged on the conveying pipe 24, and a switch valve C211 is arranged on the pressure relief pipe 212;

the air pressure detection structure comprises a detection box body 1 used for placing an operation box;

an extension cylinder 16 penetrating through the rear side panel is arranged on the rear side panel of the detection box body 1, a sealing ring 28 is arranged on the outer wall, close to a pipe orifice, of the front side of the conveying pipe 24, the conveying pipe 24 extends into the extension cylinder 16 to be connected to the inner side of the detection box body 1, and the sealing ring 28 on the conveying pipe 24 is extruded and attached to the inner wall of the extension cylinder 16;

the air pressure detection structure further comprises an air pressure conveying box 3 placed in the operation box body.

The front side panel of the detection box body 1 is provided with an openable airtight door 12, the front side panel of the airtight door 12 is provided with a sealing ring 14 attached to the opening of the detection box body 1, and the inner side of the detection box body 1 is provided with a placing frame 18.

The rear end of the extension cylinder 16 is fixedly provided with a first flange 19, the front end of the conveying pipe 24 is provided with a second flange 29, the second flange 29 is tightly attached to the first flange 19 when the conveying pipe 24 stretches into the extension cylinder 16, bolts 27 are arranged on the first flange 19, and the first flange 19 is connected with the second flange 29 through the bolts 27 in a threaded manner.

The right side panel of the air pressure transmission box 3 is provided with an air pressure transmitter 31, a signal output end of the air pressure transmitter 31 is connected with a signal receiving end of a singlechip 33 through an electric signal, and the singlechip 33 is connected to a wireless communication module 32 through a serial port line.

The top panel of detection box 1 is provided with control box 17, be provided with air pressure sensor 26 on the output tube 24, be provided with PLC controller 13 in the control box 17, the output of air pressure sensor 26 passes through the signal reception end of electrical signal connection PLC controller 13, be provided with wireless transmission module 11 in the control box 17, the receiving end of PLC controller 13 passes through serial ports line connection wireless transmission module 11, be provided with relay A110 in the control box 17 respectively, relay B111 and relay C15, relay A110, relay B111 and relay C15's signal access end all are connected to the signal output part of PLC controller 13 through the wire.

The circuit receiving end of the inflator pump 21 and the switch valve B25 is connected to the circuit output end of the relay A110 in a parallel mode, the circuit receiving end of the vacuum pump 22 and the switch valve A23 is connected to the circuit output end of the relay B111 in a parallel mode, and the circuit receiving end of the switch valve C211 is connected to the circuit output end of the relay C15 through a wire.

Embodiments of the utility model will be described in further detail below with reference to the attached drawing figures:

in one embodiment, referring to fig. 1, the air pressure adjusting structure includes a tee joint 2, openings on left and right sides of the tee joint 2 are respectively connected with an air charging end of an air pump 21 and an air suction end of a vacuum pump 22 through a connecting pipe 210, a switch valve B25 is arranged on the connecting pipe 210 of the tee joint 2 and the air pump 21, a switch valve a23 is arranged on the connecting pipe 210 of the tee joint 2 and the vacuum pump 22, a conveying pipe 24 is fixedly arranged on a front side opening of the tee joint 2, a pressure relief pipe 212 is arranged on the conveying pipe 24, a switch valve C211 is arranged on the pressure relief pipe 212, and a pressure return sensor 26 is arranged on the output pipe 24.

In one embodiment, referring to fig. 1 and 2, the air pressure detecting structure includes a detecting box 1 for placing an operation box, an air-tight door 12 that opens and closes is provided on a front panel of the detecting box 1, a sealing ring 14 that is attached to an opening of the detecting box 1 is provided on the front panel of the air-tight door 12, a placing frame 18 is provided inside the detecting box 1, and a control box 17 is further provided on a top panel of the detecting box 1.

In one embodiment, referring to fig. 3, an extension tube 16 penetrating through the rear panel is disposed on the rear panel of the detection box 1, a sealing ring 28 is disposed on an outer wall of a front side of the delivery tube 24, which is close to a tube orifice, the delivery tube 24 extends into the extension tube 16 to be connected to the inner side of the detection box 1, the sealing ring 28 on the delivery tube 24 is pressed and attached to an inner wall of the extension tube 16, a first flange 19 is fixedly disposed at a rear end of the extension tube 16, a second flange 29 is disposed at a front end of the delivery tube 24, the second flange 29 is tightly attached to the first flange 19 when the delivery tube 24 extends into the extension tube 16, a bolt 27 is disposed on the first flange 19, and the first flange 19 is screwed and connected with the second flange 29 through the bolt 27.

In one embodiment, referring to fig. 4, an air pressure transmitter 31 is disposed on a right panel of the air pressure transmission box 3, a specific model of the air pressure transmitter 31 is MS5204, a signal output end of the air pressure transmitter 31 is connected with a signal receiving end of a singlechip 33 through an electrical signal, a specific model of the singlechip 33 is STM32, the singlechip 33 is connected to a wireless communication module 32 through a serial line, and a specific model of the wireless communication module 32 is RS485.

In one embodiment, referring to fig. 5, a PLC controller 13 is disposed in a control box 17, an output end of an air pressure sensor 26 is connected with a signal receiving end of the PLC controller 13 through an electric signal, a wireless transmission module 11 is disposed in the control box 17, a specific model number of the wireless transmission module 11 is RS485, a receiving end of the PLC controller 13 is connected with the wireless transmission module 11 through a serial port line, a relay a110, a relay B111 and a relay C15 are disposed in the control box 17 respectively, signal access ends of the relay a110, the relay B111 and the relay C15 are all connected with a signal output end of the PLC controller 13 through wires, an air pump 21 and a switching valve B25 circuit receiving end are connected with a relay a110 circuit output end in a parallel connection manner, a vacuum pump 22 and a switching valve a23 circuit receiving end are connected with a relay B111 circuit output end in a parallel connection manner, and a switching valve C211 circuit receiving end is connected with a relay C15 circuit output end through wires.

The working principle of the embodiment is as follows: the test method is divided into two types, namely a pressurization test and a depressurization test;

the pressurizing test comprises the steps of firstly placing an air pressure transmission box 3 in an operation box to be tested, closing the box door of the operation box and placing the operation box on a placing frame 18 on the inner side of a detection box body 1, closing an air tight door 12, then powering off a relay B111 through a control box, enabling a switch valve A23 to be closed, powering on a relay A110 and a relay C15, opening a switch valve B25 and a switch valve C211, starting an air pressure sensor 26, starting an air pump 21, pressurizing the inner side of the detection box body 1, acquiring an air pressure value in the detection box through the air pressure sensor 26, closing the air pump 21 and closing the switch valve C211 when the air pressure reaches a certain value, and transmitting air pressure change in the operation box to a wireless transmission module 11 in the control box 17 through a wireless communication module 32 by the air pressure transmission box 3, so that the operation box can be kept sealed when the air pressure value is still obtained.

The decompression test is that firstly, an air pressure transmission box 3 is placed in an operation box to be tested, the box door of the operation box is closed and placed on a placing frame on the inner side of a detection box body 1, an air pressure door 12 is closed, then a relay A110 is powered off through a control box 17, a switch valve B25 is closed, meanwhile, a relay B111 and a relay C15 are powered on, a switch valve A123 and a switch valve C211 are opened, an air pressure sensor 26 is opened, a vacuum pump 22 is started, the inner side of the detection box body 1 is decompressed, an air pressure value in the detection box body 1 is obtained through the air pressure sensor 26, when the air pressure reaches a certain value, the vacuum pump 22 is closed, the switch valve C211 is closed, and the air pressure transmission box 3 transmits air pressure change in the operation box to a wireless transmission module 11 in the control box 17 through a wireless communication module 32, so that the operation box can be kept sealed when the air pressure value is obtained.

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

Claims

1. An operation box testing device, which is characterized in that: comprising the following steps:

the pneumatic pressure adjusting structure comprises a tee joint (2), pipe orifices at the left side and the right side of the tee joint (2) are respectively connected with an inflating end of an inflating pump (21) and an air suction end of a vacuum pump (22) through connecting pipes (210), a switch valve B (25) is arranged on the connecting pipe (210) of the tee joint (2) and the inflating pump (21), a switch valve A (23) is arranged on the connecting pipe (210) of the tee joint (2) and the vacuum pump (22), a conveying pipe (24) is fixedly arranged at a front side pipe orifice of the tee joint (2), a pressure relief pipe (212) is arranged on the conveying pipe (24), and a switch valve C (211) is arranged on the pressure relief pipe (212);

the air pressure detection structure comprises a detection box body (1) for placing the operation box;

an extension cylinder (16) penetrating through the rear side panel is arranged on the rear side panel of the detection box body (1), a sealing ring (28) is arranged on the outer wall, close to a pipe orifice, of the front side of the conveying pipe (24), the conveying pipe (24) stretches into the extension cylinder (16) to be connected to the inner side of the detection box body (1), and the sealing ring (28) on the conveying pipe (24) is extruded and attached to the inner wall of the extension cylinder (16);

the air pressure detection structure also comprises an air pressure transmission box (3) arranged in the operation box body.

2. An operation box testing device according to claim 1, wherein: the front side panel of the detection box body (1) is provided with an openable airtight door (12), and the front side panel of the airtight door (12) is provided with a sealing ring (14) attached to the opening of the detection box body (1).

3. An operation box testing device according to claim 1, wherein: the novel conveying pipe is characterized in that a first flange (19) is fixedly arranged at the rear end of the extension cylinder (16), a second flange (29) is arranged at the front end of the conveying pipe (24), the second flange (29) is tightly attached to the first flange (19) when the conveying pipe (24) stretches into the extension cylinder (16), bolts (27) are arranged on the first flange (19), and the first flange (19) is connected with the second flange (29) through the bolts (27) in a threaded mode.

4. An operation box testing device according to claim 1, wherein: the air pressure transmitter (31) is arranged on the right side panel of the air pressure transmission box (3), the signal output end of the air pressure transmitter (31) is connected with the signal receiving end of the singlechip (33) through an electric signal, and the singlechip (33) is connected to the wireless communication module (32) through a serial port line.

5. An operation box testing device according to claim 1, wherein: the top panel of detection box (1) is provided with control box (17), be provided with air pressure sensor (26) on conveyer pipe (24), be provided with PLC controller (13) in control box (17), the signal receiving part of air pressure sensor (26) through signal connection PLC controller (13), be provided with wireless transmission module (11) in control box (17), the receiving part of PLC controller (13) passes through serial connection wireless transmission module (11), be provided with relay A (110), relay B (111) and relay C (15) in control box (17) respectively, the signal access part of relay A (110), relay B (111) and relay C (15) all is connected to the signal output part of PLC controller (13) through the wire.

6. An operation box testing device according to claim 1, wherein: the circuit receiving end of the air pump (21) and the circuit receiving end of the switch valve B (25) are connected to the circuit output end of the relay A (110) in a parallel mode, the circuit receiving end of the vacuum pump (22) and the circuit receiving end of the switch valve A (23) are connected to the circuit output end of the relay B (111) in a parallel mode, and the circuit receiving end of the switch valve C (211) is connected to the circuit output end of the relay C (15) through a wire.

7. An operation box testing device according to claim 1, wherein: the inner side of the detection box body (1) is provided with a placing rack (18).