CN216116483U

CN216116483U - Air pressure type overpressure monitoring device

Info

Publication number: CN216116483U
Application number: CN202122817733.2U
Authority: CN
Inventors: 康全礼; 任明永
Original assignee: Hefei Shengwen Information Technology Co ltd
Current assignee: Hefei Shengwen Information Technology Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-03-22
Anticipated expiration: 2031-11-17

Abstract

The utility model relates to the technical field of pressure monitoring equipment, in particular to a pneumatic overpressure monitoring device.A device body comprises an overpressure cavity, a pressure cavity and an underpressure cavity, wherein a vent and a diaphragm plate are arranged in the pressure cavity; the movable end of an overpressure spring in the overpressure monitoring mechanism is provided with a first base plate which is abutted with one side of a partition plate far away from a pressure cavity, the movable end of an underpressure spring penetrates through a through hole and is fixedly provided with a second base plate which is abutted with one side of the partition plate in the pressure cavity, a first displacement sensor corresponding to the first base plate is fixed in the overpressure cavity, and a second displacement sensor corresponding to the second base plate is fixed in the pressure cavity; the data conversion processor of the data processing module is electrically connected with the first displacement inductor, the second displacement inductor and the warning lamp, and the controller is arranged below the data conversion processor. The utility model is small, portable, high in sensitivity and strong in practicability.

Description

Air pressure type overpressure monitoring device

Technical Field

The utility model relates to the technical field of pressure monitoring equipment, in particular to a pneumatic overpressure monitoring device.

Background

Pressure is an important parameter control in industrial control, and too low or too high pressure not only affects production efficiency, but also causes a series of faults and even potential safety hazards. Therefore, overpressure monitoring is necessary in industrial control.

The related overpressure monitoring devices in the market are single in structure, for example, in the prior art, the "display alarm device for monitoring tire pressure" in patent No. CN2165025Y is single in structure as a whole, and the monitoring sensitivity thereof needs to be further improved. The research on the overpressure monitoring device is of great practical significance just because no mature overpressure monitoring device exists in the market. The utility model provides a vapour-pressure type superpressure monitoring devices, the superpressure chamber has creatively been set up, pressure chamber and under-voltage chamber, and the cooperation has set up superpressure monitoring mechanism and data processing module, through the pressure of predetermineeing the pressure chamber, fill predetermined pressure into to superpressure chamber and under-voltage intracavity promptly, in the monitoring process, only through the air that lets in the system that awaits measuring in to the pressure chamber, under the analysis and the processing of superpressure monitoring mechanism and data processing module, can obtain the pressure value in the system that awaits measuring, and carry out the early warning suggestion through superpressure monitoring mechanism, so that the staff carries out timely processing.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model aims to provide the pneumatic overpressure monitoring device which is simple in structure, high in overpressure monitoring sensitivity and strong in practicability. In order to realize the purpose of the utility model, the following technical scheme is adopted:

an air pressure type overpressure monitoring device comprises

The device comprises a device body, wherein the device body is provided with a hollow wall cavity and is used for placing various connected wires, two parallel partition plates are arranged in the device body and are vertical to a top plate and a bottom plate of the device body, through holes are formed in the two partition plates, the two partition plates divide the inner part of the device body into an overpressure cavity, a pressure cavity and an under-pressure cavity, and the pressure cavity is positioned between the overpressure cavity and the under-pressure cavity; a vent hole is arranged in the pressure cavity, a vent pipe is connected to the vent hole, and a vent valve is arranged on the vent pipe; a horizontal transverse partition plate is arranged on one side, far away from the vent hole, in the pressure cavity, a space formed between the transverse partition plate and the two partition plates is used for placing an air supply device, a first air supply port and a second air supply port are arranged on the air supply device, the first air supply port is connected with the overpressure cavity through a first air supply pipe with a first air supply valve, and the second air supply port is connected with the underpressure cavity through a second air supply pipe with a second air supply valve; a warning lamp is arranged above the outer surface of the device body;

the overpressure monitoring mechanism comprises an overpressure spring, an underpressure spring, a first displacement sensor and a second displacement sensor, the overpressure spring is fixed on one side, far away from the partition plate, of the overpressure cavity, a first base plate is fixed at the movable end of the overpressure spring, and the first base plate is abutted to one side, far away from the pressure cavity, of the partition plate; the under-pressure spring is fixed on one side, far away from the partition plate, in the under-pressure cavity, the movable end of the under-pressure spring penetrates through the through hole and is fixed with a second base plate, and the second base plate is abutted and connected with one side, located in the pressure cavity, of the partition plate; the first displacement sensor is fixed in the overpressure cavity and corresponds to the first base plate, the second displacement sensor is fixed in the pressure cavity and corresponds to the second base plate; and

the data conversion processor is electrically connected with the first displacement sensor and the second displacement sensor through leads and is electrically connected with the warning lamp; the data conversion processor is provided with a controller below, the data conversion processor is electrically connected with the controller, and the controller is electrically connected with the vent valve, the first air supply valve and the second air supply valve.

Preferably, the through hole is provided at the center of the partition plate.

Preferably, a second sealing ring is arranged on one side, close to the partition plate, of the first base plate and the second base plate, and the second sealing ring is matched with the through hole.

Preferably, a ventilation filter screen is arranged in the ventilation pipe, and the ventilation filter screen is arranged below the ventilation valve.

Preferably, a first sealing ring is arranged on the vent valve.

Preferably, the upper end of the vent pipe is provided with a threaded opening.

Preferably, the warning light comprises a red light, a green light and a yellow light.

Preferably, the front side of device body surface is equipped with display screen and control button, display screen and data processing module electric connection for show the real-time atmospheric pressure in supercharge chamber and the under-voltage intracavity, control button and controller electric connection.

Preferably, the control button comprises three valve control buttons and three pressure setting buttons, each valve control button is electrically connected with the vent valve, the first air supply valve and the second air supply valve through the controller, each pressure setting button corresponds to the unit number, the tens number and the hundreds number of the preset pressure in the pressure cavity, and the pressure setting buttons are electrically connected with the display screen and used for displaying the preset pressure in the pressure cavity on the display screen.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model is provided with an overpressure cavity, a pressure cavity, an underpressure cavity, a gas supply device arranged below the pressure cavity, and a data conversion processor and a controller arranged on one side, and each connecting lead is arranged in a wall cavity of a device body, so that the space of the device is fully utilized, and the whole device is small and portable.

The overpressure monitoring mechanism is provided with an overpressure monitoring mechanism with an overpressure spring and an underpressure spring, the overpressure monitoring mechanism further comprises a partition plate, a first base plate, a second base plate, a first displacement sensor and a second displacement sensor, the overpressure monitoring mechanism is combined with the structural arrangement of the overpressure cavity, the pressure cavity and the underpressure cavity, the data processing module and the display screen, the overpressure/underpressure condition of the component can be monitored in real time only by introducing the pressure of the component to be detected into the pressure cavity, the result is displayed on the display screen, the overpressure/underpressure monitoring mechanism is clear at a glance, early warning can be timely performed through a warning lamp, the sensitivity is high, the overall structure is simple, and the operation is convenient.

Drawings

FIG. 1 is a schematic diagram of a vertical cross-section of a pneumatic overpressure monitoring device according to the present invention;

FIG. 2 is a schematic view of an overall structure of a pneumatic overpressure monitoring device according to the present invention;

in the figure, 1-device body, 2-wall cavity, 3-partition plate, 4-through hole, 5-overpressure cavity, 6-pressure cavity, 7-underpressure cavity, 8-data conversion processor, 9-controller, 10-vent hole, 11-vent pipe, 12-vent valve, 13-thread hole, 14-vent screen, 15-first sealing ring, 16-overpressure spring, 17-first backing plate, 18-underpressure spring, 19-second backing plate, 20-first displacement sensor, 21-second displacement sensor, 22-lead wire, 23-warning light, 24-gas supply device, 25-first gas supply port, 26-first gas supply pipe, 27-first gas supply valve, 28-second gas supply port, 29-second gas supply pipe, 30-second air supply valve, 31-second sealing ring, 32-display screen, 33-control button, 3301-valve control button, 3302-pressure setting button, 34-diaphragm.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic structural view of a vertical section of a pneumatic overpressure monitoring device of the present invention, and fig. 2 is a schematic structural view of an overall structure of a pneumatic overpressure monitoring device of the present invention, from which it can be seen that a pneumatic overpressure monitoring device of the present invention includes a device body 1, an overpressure monitoring mechanism and a data processing module.

The device body 1 of the utility model is provided with a hollow wall cavity 2 for placing various connected leads 22, two parallel separation plates 3 are arranged in the device body 1, the separation plates 3 are vertical to a top plate and a bottom plate of the device body 1, the centers of the two separation plates 3 are respectively provided with a through hole 4, the two separation plates 3 divide the interior of the device body 1 into an overpressure cavity 5, a pressure cavity 6 and an underpressure cavity 7, and the pressure cavity 6 is positioned between the overpressure cavity 5 and the underpressure cavity 7. Wherein, a vent 10 communicated with a vent pipe 11 is arranged in the pressure cavity 6, the vent pipe 11 is provided with a vent valve 12, a vent filter 14 is arranged in the vent pipe 11, the vent filter 14 is arranged below the vent valve 12, the vent valve 12 is provided with a first sealing ring 15, the upper end of the vent pipe 11 is provided with a threaded port 13, which is convenient for the pneumatic overpressure monitoring device to be tightly connected with a component to be tested; a horizontal diaphragm plate 34 is arranged at one side of the pressure cavity 6 far away from the vent hole 10, a space formed between the diaphragm plate 34 and the two diaphragm plates 3 is used for placing a gas supply device 24, the gas supply device 24 is provided with a first gas supply port 25 and a second gas supply port 28, the first gas supply port 25 is connected with the overpressure cavity 5 through a first gas supply pipe 26 with a first gas supply valve 27, the second gas supply port 28 is connected with the underpressure cavity 7 through a second gas supply pipe 29 with a second gas supply valve 30, and gas with preset pressure is filled into the overpressure cavity 5 and the underpressure cavity 7 through the gas supply device 24 so as to carry out overpressure monitoring; a warning lamp 23 is arranged above the outer surface of the device body 1, and the warning lamp 23 comprises a red lamp, a green lamp and a yellow lamp, wherein the red lamp represents overpressure, the green lamp represents normal, and the yellow lamp represents underpressure.

The overpressure monitoring mechanism comprises an overpressure spring 16, an underpressure spring 18, a first displacement sensor 20 and a second displacement sensor 21, wherein the overpressure spring 16 is fixed on one side, far away from a partition plate 3, in an overpressure cavity 5, a first backing plate 17 is fixed at the movable end of the overpressure spring 16, and the first backing plate 17 is abutted and connected with one side, far away from a pressure cavity 6, of the partition plate 3; the underpressure spring 18 is fixed on one side of the underpressure cavity 7 far away from the partition plate 3, the movable end of the underpressure spring 18 penetrates through the through hole 4 and is fixed with a second cushion plate 19, the second cushion plate 19 is butted and connected with one side of the partition plate 3 in the pressure cavity 6, in the embodiment, one sides of the first cushion plate 17 and the second cushion plate 19 close to the partition plate 3 are provided with second sealing rings 31 matched with the through hole 4, so that the tightness of the overpressure cavity 5, the pressure cavity 6 and the underpressure cavity 7 is improved, and the monitoring accuracy is improved; in addition, a first displacement sensor 20 is fixed in the overpressure chamber 5, and the first displacement sensor 20 corresponds to the first pad plate 17, a second displacement sensor 21 is fixed in the pressure chamber 6, and the second displacement sensor 21 corresponds to the second pad plate 19.

The data processing module comprises a data conversion processor 8, wherein the data conversion processor 8 is fixed on one side of an overpressure cavity 5/an underpressure cavity 7, the data conversion processor 8 is electrically connected with a first displacement sensor 20 and a second displacement sensor 21 through a lead 22, so that the pressure and the change of the pressure in each cavity are monitored in real time, overpressure monitoring is realized, the data conversion processor 8 is electrically connected with a warning lamp 23, the monitored result is displayed through the warning lamp, and related workers are reminded to operate, so that accidents are prevented; a controller 9 electrically connected with the data conversion processor 8 is arranged below the data conversion processor 8, and the controller 9 is electrically connected with the vent valve 12, the first air supply valve 27 and the second air supply valve 30 to realize the inflation of the overpressure cavity and the underpressure cavity, thereby monitoring the pressure of the component to be tested. In addition, in this embodiment, a display screen 32 and a control button 33 are disposed on the front side of the outer surface of the device body 1, wherein the display screen 32 is electrically connected to the data processing module for displaying the real-time air pressure in the overpressure chamber 5 and the underpressure chamber 7, the control button 33 is electrically connected to the controller 9, the control button 33 includes three valve control buttons 3301 and three pressure setting buttons 3302, each valve control button 3301 is electrically connected to the vent valve 12, the first air supply valve 27 and the second air supply valve 30 through the controller 9, each pressure setting button 3302 corresponds to the unit number, the ten number and the hundred number of the preset pressure in the pressure chamber 6, and the pressure setting button 3302 is electrically connected to the display screen 32 for displaying the preset pressure in the pressure chamber 6 on the display screen 32.

In the using process of the utility model, firstly, the control button controls the vent valve to be closed, the pressure in the pressure cavity is preset by the pressure setting button, and the size of the preset pressure is displayed on the display screen (namely the unit number, the tens number and the hundreds number of the preset pressure); then, opening a first air supply valve and a second air supply valve through a control button, respectively introducing air with preset pressure into the overpressure cavity and the underpressure cavity by an air supply device, wherein the first base plate and the second base plate are just abutted to the partition plate, the overpressure cavity and the underpressure cavity are sealed due to the arrangement of a second sealing ring, the preset pressure is finally reached, then, closing the first air supply valve and the second air supply valve, and stopping the operation of the air supply device; next, the vent valve is opened and the air of the system to be monitored is introduced into the pressure chamber: if the pressure in the system to be monitored is overpressure, the first base plate in the overpressure cavity is pushed (the second base plate is still abutted and connected with the partition plate) so that the overpressure spring is compressed, at the moment, the first displacement sensor senses the displacement of the first base plate and transmits information to the data conversion processor, a warning lamp electrically connected with the data conversion processor displays a red light to perform overpressure early warning, when the pressure in the overpressure cavity and the pressure in the pressure cavity are balanced, the first base plate stops moving, at the moment, the data conversion processor measures the pressure difference between the overpressure cavity and the pressure cavity through the moving distance of the data conversion processor, calculates the pressure value in the system at the moment through preset pressure, and displays the result on a display screen; if the pressure in the system to be monitored is under-pressure, a second base plate in the pressure cavity is pushed (the first base plate is still in butt joint with the partition plate), so that the under-pressure spring is stretched, the second displacement sensor senses the displacement of the second base plate at the moment and transmits information to the data conversion processor, a warning lamp electrically connected with the data conversion processor displays a yellow lamp to perform under-pressure early warning, when the pressure in the under-pressure cavity and the pressure in the pressure cavity reach balance, the second base plate stops moving, the data conversion processor measures the pressure difference between the under-pressure cavity and the pressure cavity according to the moving distance of the data conversion processor at the moment, the pressure value in the system at the moment is obtained through preset pressure calculation, and the result is displayed on a display screen; when the pressure in the system to be monitored is equal to the preset pressure, the first base plate and the second base plate do not displace, the warning lamp electrically connected with the data conversion processor displays a green lamp at the moment, the system operation pressure is normal, and the pressure in the system is just equal to the preset pressure value at the moment.

As can be seen from the above embodiments of the present invention, the present invention is provided with an overpressure chamber, a pressure chamber, an underpressure chamber, a gas supply device arranged below the pressure chamber, and a data conversion processor and a controller arranged at one side, and each connecting wire is arranged in a wall cavity of the device body, so that the space of the device is fully utilized, and the whole device is small and light; the overpressure monitoring mechanism with the overpressure spring and the underpressure spring is arranged, the overpressure monitoring mechanism further comprises a partition plate, a first base plate, a second base plate, a first displacement sensor and a second displacement sensor, and is combined with an overpressure cavity, a pressure cavity and an underpressure cavity, and a data processing module and a display screen, only the pressure of a component to be detected needs to be introduced into the pressure cavity, the overpressure/underpressure condition of the component can be monitored in real time, the result is displayed on the display screen, the overpressure monitoring mechanism is clear at a glance, early warning can be timely performed through a warning lamp, the sensitivity is high, the overall structure is simple, and the operation is convenient.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can understand that the changes or modifications within the technical scope of the present invention are included in the scope of the present invention, and therefore, the scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A vapour-pressure type superpressure monitoring devices which characterized in that: comprises that

The device comprises a device body (1), wherein the device body (1) is provided with a hollow wall cavity (2) and is used for placing various connected wires (22), two partition plates (3) which are parallel to each other are arranged inside the device body (1), the partition plates (3) are perpendicular to a top plate and a bottom plate of the device body (1), through holes (4) are formed in the two partition plates (3), the two partition plates (3) divide the inner part of the device body (1) into an overpressure cavity (5), a pressure cavity (6) and an underpressure cavity (7), and the pressure cavity (6) is located between the overpressure cavity (5) and the underpressure cavity (7); a vent hole (10) is arranged in the pressure cavity (6), a vent pipe (11) is connected to the vent hole (10), and a vent valve (12) is arranged on the vent pipe (11); a horizontal transverse partition plate (34) is arranged on one side, far away from the vent hole (10), in the pressure cavity (6), a space formed between the transverse partition plate (34) and the two partition plates (3) is used for placing an air supply device (24), a first air supply port (25) and a second air supply port (28) are arranged on the air supply device (24), the first air supply port (25) is connected with the overpressure cavity (5) through a first air supply pipe (26) with a first air supply valve (27), and the second air supply port (28) is connected with the underpressure cavity (7) through a second air supply pipe (29) with a second air supply valve (30); a warning lamp (23) is arranged above the outer surface of the device body (1);

the overpressure monitoring mechanism comprises an overpressure spring (16), an underpressure spring (18), a first displacement sensor (20) and a second displacement sensor (21), wherein the overpressure spring (16) is fixed on one side, far away from the partition plate (3), in the overpressure cavity (5), a first base plate (17) is fixed at the movable end of the overpressure spring (16), and the first base plate (17) is abutted and connected with one side, far away from the pressure cavity (6), of the partition plate (3); the under-pressure spring (18) is fixed on one side, far away from the partition plate (3), in the under-pressure cavity (7), the movable end of the under-pressure spring (18) penetrates through the through hole (4) and is fixedly provided with a second base plate (19), and the second base plate (19) is abutted and connected with one side, located in the pressure cavity (6), of the partition plate (3); the first displacement inductor (20) is fixed in the overpressure cavity (5), the first displacement inductor (20) corresponds to the first backing plate (17), the second displacement inductor (21) is fixed in the pressure cavity (6), and the second displacement inductor (21) corresponds to the second backing plate (19); and

the data processing module comprises a data conversion processor (8), the data conversion processor (8) is fixed on one side of the over-pressure cavity (5)/the under-pressure cavity (7), the data conversion processor (8) is electrically connected with the first displacement inductor (20) and the second displacement inductor (21) through a lead (22), and the data conversion processor (8) is electrically connected with the warning lamp (23); the data conversion device is characterized in that a controller (9) is arranged below the data conversion processor (8), the data conversion processor (8) is electrically connected with the controller (9), and the controller (9) is electrically connected with the vent valve (12), the first air supply valve (27) and the second air supply valve (30).

2. The pneumatic overpressure monitoring apparatus of claim 1, wherein: the through hole (4) is arranged in the center of the partition plate (3).

3. The pneumatic overpressure monitoring apparatus of claim 1 or 2, wherein: and a second sealing ring (31) is arranged on one side of the first base plate (17) and the second base plate (19) close to the partition plate (3), and the second sealing ring (31) is matched with the through hole (4).

4. The pneumatic overpressure monitoring apparatus of claim 1, wherein: a ventilation filter screen (14) is arranged in the ventilation pipe (11), and the ventilation filter screen (14) is arranged below the ventilation valve (12).

5. The pneumatic overpressure monitoring apparatus of claim 1 or 4, wherein: and a first sealing ring (15) is arranged on the vent valve (12).

6. The pneumatic overpressure monitoring apparatus of claim 1 or 4, wherein: the upper end of the vent pipe (11) is provided with a threaded opening (13).

7. The pneumatic overpressure monitoring apparatus of claim 1, wherein: the warning lamp (23) comprises a red lamp, a green lamp and a yellow lamp.

8. The pneumatic overpressure monitoring apparatus of claim 1, wherein: the device is characterized in that a display screen (32) and a control button (33) are arranged on the front side of the outer surface of the device body (1), the display screen (32) is electrically connected with the data processing module and used for displaying real-time air pressure in the over-pressure cavity (5) and the under-pressure cavity (7), and the control button (33) is electrically connected with the controller (9).

9. The pneumatic overpressure monitoring apparatus of claim 8, wherein: control button (33) include three valve control button (3301) and three pressure setting button (3302), and each valve control button (3301) is respectively through controller (9) and breather valve (12), first air feed valve (27) and second air feed valve (30) electric connection, and each pressure setting button (3302) corresponds the unit number, tens number and the hundred number of presetting pressure in pressure chamber (6) respectively, just pressure setting button (3302) and display screen (32) electric connection for show the pressure of presetting in pressure chamber (6) on display screen (32).