CN217687640U

CN217687640U - Gas pressure testing device

Info

Publication number: CN217687640U
Application number: CN202221744198.0U
Authority: CN
Inventors: 全乐强; 李军
Original assignee: Guangzhou Gongle Technology Co ltd
Current assignee: Guangzhou Gongle Technology Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-10-28
Anticipated expiration: 2032-07-06

Abstract

The utility model relates to a gas pressure testing arrangement, including the pipeline subassembly, measuring subassembly and control assembly, the pipeline subassembly is including the air inlet and the gas outlet that communicate each other, is equipped with the air current solenoid valve between air inlet and the gas outlet, is equipped with first gas circuit and second gas circuit on the air current solenoid valve, and the one end and the air current solenoid valve of first gas circuit are connected, and the other end and the gas outlet of first gas circuit are connected, and the one end and the air current solenoid valve of second gas circuit are connected, and the other end of second gas circuit passes through the air resistance governing valve and is connected with the gas outlet. The measurement assembly includes a pressure sensor for measuring the air pressure within the manifold assembly. The control assembly comprises a control circuit board, and the control circuit board is respectively connected with the airflow electromagnetic valve and the air resistance regulating valve. The utility model discloses a gas pressure testing arrangement, simple structure, convenient operation can wide application in various tests in fields such as occupational health detects, is emergent and protection moreover, and the suitability is strong, the controllability is strong, measurement accuracy is high.

Description

Gas pressure testing device

Technical Field

The utility model relates to a gas pressure measuring equipment technical field especially relates to a gas pressure testing arrangement.

Background

In the fields of occupational health detection, emergency, protection and the like, the air tightness test of chemical protective clothing, the resistance test of sampling media such as an activated carbon tube and a sampling tube, the pressure resistance test of an air sampler, other general pressure test scenes and the like are frequently required. However, the conventional air pressure testing equipment, including a differential pressure gauge, a pressure gauge, etc., has a single function and few direct application scenarios, and cannot directly perform the above-mentioned various tests by using the conventional equipment, and the conventional measuring equipment has poor adjustability and low measurement accuracy.

SUMMERY OF THE UTILITY MODEL

Therefore, a need exists for a gas pressure testing device which is simple in structure, convenient to operate, capable of being widely applied to various tests in the fields of occupational health detection, emergency, protection and the like, strong in applicability, strong in adjustability and high in measurement accuracy.

The technical scheme is as follows:

in one aspect, a gas pressure testing apparatus is provided, including:

the pipeline assembly comprises an air inlet and an air outlet which are communicated with each other, an air flow electromagnetic valve is arranged between the air inlet and the air outlet, a first air path and a second air path are arranged on the air flow electromagnetic valve, one end of the first air path is connected with the air flow electromagnetic valve, the other end of the first air path is connected with the air outlet, one end of the second air path is connected with the air flow electromagnetic valve, and the other end of the second air path is connected with the air outlet through an air resistance adjusting valve;

a measurement assembly including a pressure sensor for measuring air pressure within the conduit assembly;

and the control assembly comprises a control circuit board, and the control circuit board is respectively connected with the airflow electromagnetic valve and the air resistance regulating valve.

The technical solution is further explained below:

in one embodiment, a first three-way interface is arranged on the first air passage, two ends of the first three-way interface are communicated with the first air passage, and a third end of the first three-way interface is connected with an air outlet end of the air resistance adjusting valve.

In one embodiment, one end of the second air path is connected to the air flow solenoid valve, and the other end of the second air path is connected to the air inlet end of the air resistance adjusting valve.

In one embodiment, a second three-way interface is arranged on the first air passage, two ends of the second three-way interface are communicated with the first air passage, a pressure measuring pipe is connected to a third end of the second three-way interface, and the pressure sensor is arranged on the pressure measuring pipe.

In one embodiment, the pressure sensor is arranged on the control circuit board, and one end of the pressure measuring pipe is connected to the pressure sensor of the control circuit board.

In one embodiment, the measuring device further comprises a box body, the box body comprises an upper box shell and a lower box shell, an accommodating cavity is arranged between the upper box shell and the lower box shell, and the pipeline assembly, the measuring assembly and the control assembly are all arranged in the accommodating cavity.

In one embodiment, an operation panel is arranged between the upper box shell and the lower box shell, the operation panel divides the accommodating cavity into a first cavity and a second cavity, and the pipeline assembly, the measuring assembly and the control assembly are arranged in the first cavity.

In one embodiment, the operation panel is provided with a vent connected with the air inlet and an air outlet connected with the air outlet on one side of the second chamber.

In one embodiment, a touch screen is disposed on one side of the operating panel located in the second chamber, and the touch screen is connected to the control module.

In one embodiment, the power supply assembly is connected with the control assembly and adopts a rechargeable power supply.

The utility model has the advantages that:

compared with the prior art, the utility model discloses a gas pressure testing arrangement is through setting up two gas circuits of first gas circuit and second gas circuit between air inlet and gas outlet to control the switching of two gas circuits respectively through the air current solenoid valve, and be equipped with the resistance regulation that air resistance governing valve realized the second gas circuit in the second gas circuit, the controllability is high, makes whole device can have the test scene that adapts to various differences, uses extensively, and the suitability is strong. In addition, the pressure sensor can accurately measure the air pressure in the pipeline assembly, and the control circuit board is used for realizing the ventilation operation of the whole pipeline assembly, so that the operation is simple and convenient.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.

FIG. 1 is a schematic diagram of a gas pressure test apparatus according to an embodiment;

fig. 2 is a schematic structural view of a gas pressure testing apparatus in an embodiment, in which a case is omitted.

Description of reference numerals:

100. a tubing assembly; 110. an air inlet; 120. an air outlet; 130. an air flow solenoid valve; 140. a first gas path; 141. a first tee fitting; 142. a second tee fitting; 150. a second gas path; 160. an air resistance regulating valve; 170. a pressure measuring pipe; 210. a pressure sensor; 310. a control circuit board; 400. a box body; 410. an upper box shell; 420. a lower box shell; 430. an operation panel; 431. a vent; 432. an exhaust port; 433. a touch screen; 434. a charging jack; 435. a switch button; 436. a control knob; 500. a power supply assembly.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "horizontal", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, and are only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected or integrated; the connection can be mechanical connection, electrical connection or wireless signal connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 to 2, in one embodiment, a gas pressure testing apparatus is provided, which includes a pipeline assembly 100, a measuring assembly and a control assembly, the pipeline assembly 100 includes an air inlet 110 and an air outlet 120 that are communicated with each other, an air flow solenoid valve 130 is disposed between the air inlet 110 and the air outlet 120, a first air path 140 and a second air path 150 are disposed on the air flow solenoid valve 130, one end of the first air path 140 is connected to the air flow solenoid valve 130, the other end of the first air path 140 is connected to the air outlet 120, one end of the second air path 150 is connected to the air flow solenoid valve 130, and the other end of the second air path 150 is connected to the air outlet 120 through an air resistance adjusting valve 160. The measurement assembly includes a pressure sensor 210 for measuring the air pressure within the manifold assembly 100. The control assembly includes a control circuit board 310, and the control circuit board 310 is connected to the airflow solenoid valve 130 and the air resistance adjusting valve 160 respectively.

In this embodiment, through set up two gas circuits of first gas circuit 140 and second gas circuit 150 between air inlet 110 and gas outlet 120 to control the switching of two gas circuits respectively through air flow solenoid valve 130, and be equipped with air resistance governing valve 160 in second gas circuit 150 and realize the resistance regulation of second gas circuit 150, the controllability is high, makes the integrated device can have the test scene that adapts to various differences, uses extensively, and the suitability is strong. In addition, the pressure sensor 210 can accurately measure the air pressure in the pipeline assembly 100, and the control circuit board 310 can be used for realizing the ventilation operation of the whole pipeline assembly 100, so that the operation is simple and convenient.

In one embodiment, the first air path 140 is provided with a first three-way connection 141, two ends of the first three-way connection 141 are connected to the first air path 140, and a third end of the first three-way connection 141 is connected to an air outlet of the air resistance adjusting valve 160. Further, one end of the second air path 150 is connected to the air flow solenoid valve 130, and the other end of the second air path 150 is connected to an air inlet end of the air resistance adjustment valve 160. When the first air path 140 is ventilated, air enters from the air inlet 110, passes through the air flow solenoid valve 130, enters the first air path 140, and then is directly discharged to the air outlet 120 along the first air path 140. When the second air path 150 is ventilated, air enters from the air inlet 110, enters the second air path 150 through the air flow solenoid valve 130, enters the air resistance adjusting valve 160 along the second air path 150, and enters the first air path 140 through the first three-way connector 141 after being output from the air resistance adjusting valve 160, and is discharged to the air outlet 120 along the first air path 140.

In addition, the first air passage 140 is provided with a second three-way connector 142, two ends of the second three-way connector 142 are communicated with the first air passage 140, a third end of the second three-way connector 142 is connected with a pressure measuring pipe 170, and the pressure sensor 210 is arranged on the pressure measuring pipe 170. Specifically, the second three-way port 142 is disposed at a side close to the air outlet 120, and the air pressure value at the air outlet 120 side is measured by the pressure sensor 210. In practical operation, the second three-way connector 142 is disposed between the first three-way connector 141 and the air outlet 120, so as to ensure that when the first air channel 140 and the second air channel 150 are ventilated, air can pass through the second three-way connector 142, and thus the pressure sensor 210 can simultaneously realize measurement of the first air channel 140 and the second air channel 150.

Further, the pressure sensor 210 is disposed on the control circuit board 310, and one end of the pressure measuring pipe 170 is connected to the pressure sensor 210 of the control circuit board 310. The pressure sensor 210 is directly connected to the control circuit board 310, and transmits the measured air pressure data to the control circuit board 310, and outputs the relevant data through the control circuit board 310.

In actual operation, the airflow solenoid valve 130 is controlled by the control circuit board 310, the airflow solenoid valve 130 is in a normally open state, when the airflow solenoid valve 130 is powered on and closed, the second air path 150 is closed, and air in the air duct passes through the first air path 140 and directly flows out to the air outlet 120, so that the air flow test device can be applied to a test scene with large airflow. When the airflow solenoid valve 130 is not powered on and opened, the first air path 140 is closed, and the air in the pipe passes through the second air path 150 and flows out of the air outlet 120 after flowing through the air resistance adjusting valve 160, which may be suitable for a test scenario application with a small airflow. In addition, the size of the cross section area of air passing through the air path can be adjusted through the air resistance adjusting valve 160, so that the size of the air resistance in the pipe can be adjusted, specific measurement is realized, the applicability is strong, and the device is more widely applied.

In one embodiment, the measuring device further comprises a box body 400, wherein the box body 400 comprises an upper box shell 410 and a lower box shell 420, a containing cavity is arranged between the upper box shell 410 and the lower box shell 420, and the pipeline assembly 100, the measuring assembly and the control assembly are all arranged in the containing cavity. By placing the various components within the case 400, the portability of the overall device is improved. Moreover, the box body 400 can realize good protection effect among all the components, avoid the damage caused by collision of all the components in the carrying and transporting process, or avoid the influence of the external environment on the test of all the components in the measuring process, and is favorable for ensuring the measuring accuracy.

In one embodiment, an operation panel 430 is disposed between the upper case 410 and the lower case 420, the operation panel 430 divides the accommodating chamber into a first chamber and a second chamber, and the pipeline assembly 100, the measurement assembly and the control assembly are disposed in the first chamber. Specifically, the operation panel 430 seals the pipeline assembly 100, the measurement assembly and the control assembly in the first chamber between the operation panel 430 and the lower casing 420, so as to prevent the above assemblies from being directly exposed to the external environment, and to protect the above assemblies.

Further, the operation panel 430 is provided with a plurality of operation components for controlling the operation of the whole device, for example, in one embodiment, the operation panel 430 is provided with a vent 431 connected to the air inlet 110 and an air outlet 432 connected to the air outlet 120 on one side of the second chamber. The air inlet and outlet of the pipeline assembly 100 are realized directly through the air vent 431 and the air outlet 432 on the operation panel 430, and the operation is convenient.

For another example, in one embodiment, the operation panel 430 is provided with a touch screen 433 on one side of the second chamber, and the touch screen 433 is connected to the control unit. The whole measurement control is directly carried out through the touch screen 433, and the measurement data display is carried out by utilizing the touch screen 433, so that the operation is convenient, and the measurement display precision is high.

In addition, in one embodiment, a power supply assembly 500 is included, the power supply assembly 500 is disposed in the first chamber, the power supply assembly 500 is connected to the control assembly, and the power supply assembly 500 is a rechargeable power supply. The operation panel 430 is further provided with a charging socket 434 for charging the power supply module 500, and a switch button 435 for controlling the on/off of the entire apparatus.

Furthermore, the operation panel 430 is further provided with a control knob 436 for controlling the size of the air resistance adjusting valve 160, and in actual operation, when the control knob 436 is rotated clockwise, the air resistance adjusting valve 160 reduces the cross-sectional area of the air passing through the air path, and the air resistance in the tube increases. Conversely, when the control knob 436 is rotated counterclockwise, the air resistance adjustment valve 160 increases the cross-sectional area of the air passing through the air passage, and the air resistance in the tube decreases.

The above embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A gas pressure test apparatus, comprising:

the pipeline assembly (100) comprises an air inlet (110) and an air outlet (120) which are communicated with each other, an air flow electromagnetic valve (130) is arranged between the air inlet (110) and the air outlet (120), a first air path (140) and a second air path (150) are arranged on the air flow electromagnetic valve (130), one end of the first air path (140) is connected with the air flow electromagnetic valve (130), the other end of the first air path (140) is connected with the air outlet (120), one end of the second air path (150) is connected with the air flow electromagnetic valve (130), and the other end of the second air path (150) is connected with the air outlet (120) through an air resistance adjusting valve (160);

a measurement assembly comprising a pressure sensor (210) for measuring the air pressure within the conduit assembly (100);

the control assembly comprises a control circuit board (310), and the control circuit board (310) is respectively connected with the airflow solenoid valve (130) and the air resistance adjusting valve (160).

2. The gas pressure testing device according to claim 1, wherein a first three-way connector (141) is arranged on the first gas path (140), two ends of the first three-way connector (141) are communicated with the first gas path (140), and a third end of the first three-way connector (141) is connected with an air outlet end of the air resistance adjusting valve (160).

3. A gas pressure testing device according to claim 2, wherein one end of the second gas path (150) is connected to the gas flow solenoid valve (130), and the other end of the second gas path (150) is connected to the air inlet end of the air resistance adjusting valve (160).

4. The gas pressure testing device according to claim 1, wherein a second three-way joint (142) is arranged on the first gas path (140), two ends of the second three-way joint (142) are communicated with the first gas path (140), a pressure measuring pipe (170) is connected to a third end of the second three-way joint (142), and the pressure sensor (210) is arranged on the pressure measuring pipe (170).

5. A gas pressure test device according to claim 4, characterized in that the pressure sensor (210) is arranged on the control circuit board (310), and one end of the pressure measuring tube (170) is connected to the control circuit board (310) at the pressure sensor (210).

6. The gas pressure testing device according to claim 1, further comprising a box body (400), wherein the box body (400) comprises an upper box shell (410) and a lower box shell (420), a containing cavity is arranged between the upper box shell (410) and the lower box shell (420), and the pipeline assembly (100), the measuring assembly and the control assembly are all arranged in the containing cavity.

7. A gas pressure testing device according to claim 6, wherein an operation panel (430) is provided between the upper housing (410) and the lower housing (420), the operation panel (430) divides the accommodating chamber into a first chamber and a second chamber, and the piping assembly (100), the measuring assembly and the control assembly are provided in the first chamber.

8. The gas pressure testing device as claimed in claim 7, wherein the operation panel (430) is provided with a vent (431) connected to the gas inlet (110) and a vent (432) connected to the gas outlet (120) on one side of the second chamber.

9. The gas pressure testing device according to claim 7, wherein a touch screen (433) is disposed on a side of the operating panel (430) located in the second chamber, and the touch screen (433) is connected to the control unit.

10. A gas pressure testing arrangement according to claim 1, further comprising a power supply unit (500), said power supply unit (500) being connected to said control unit, said power supply unit (500) being adapted to be powered by a rechargeable power supply.