CN222087244U

CN222087244U - Air tightness tester

Info

Publication number: CN222087244U
Application number: CN202420036198.8U
Authority: CN
Inventors: 彭法锦
Original assignee: Zhuhai Bojay Electronics Co Ltd
Current assignee: Zhuhai Bojay Electronics Co Ltd
Priority date: 2024-01-08
Filing date: 2024-01-08
Publication date: 2024-11-29
Anticipated expiration: 2034-01-08

Abstract

The utility model discloses an airtightness tester, aiming to provide an airtightness tester with accurate measurement, time-saving and labor-saving, convenient and fast operation, and high test efficiency. The utility model includes a box body and a box cover, and an electric proportional valve, an airtightness valve body, an air pressure differential transmitter, a control panel and a touch screen are arranged in the box body, and the air pressure differential transmitter includes a left chamber and a right chamber, and a pressure differential sensor is arranged between the left chamber and the right chamber. One end of the airtightness valve body is connected to the electric proportional valve through an air pipe, and the other end of the airtightness valve body is provided with two output air pipes, one connected to the left chamber, and the other connected to the right chamber. The left chamber is connected to an external adjustable equivalent cavity, and the right chamber is connected to the product through an air pipe. The electric proportional valve, the airtightness valve body, the pressure differential sensor and the touch screen are all connected to the control panel electrical signal. The utility model is applied to the technical field of sealing test.

Description

Air tightness tester

Technical Field

The utility model relates to a tester, in particular to an air tightness tester.

Background

At present, the airtight product needs to be subjected to airtight quality detection after production is finished, so that whether the product is qualified or not is judged, such as a cylinder body, a valve, a water tank and other products, the common method is to directly charge the gas with the pressure larger than the standard atmospheric pressure into the product, then detect the pressure of the charged gas through a pressure gauge to judge whether the product leaks gas or not, and an operator needs to repeatedly check the pressure gauge, so that the detection time is greatly increased, the detection value is inaccurate due to very easy human error operation, the method is inconvenient, time and labor are wasted, and the testing efficiency is low. Therefore, there is a need to provide a new solution to the above-mentioned problems.

Disclosure of utility model

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the air tightness tester which is accurate in measurement, time-saving, labor-saving, convenient and quick to operate and high in testing efficiency.

The utility model adopts the technical scheme that the intelligent air-tight box comprises a box body and a box cover, wherein an electric proportional valve, an air-tight valve body, an air pressure difference transmitter, a control board and a touch screen are arranged in the box body, the air pressure difference transmitter comprises a left cavity and a right cavity, a pressure difference sensor is arranged between the left cavity and the right cavity, one end of the air-tight valve body is connected with the electric proportional valve through an air pipe, the other end of the air-tight valve body is provided with two output air pipes, one air-tight valve body is connected with the left cavity, the other air-tight valve body is connected with the right cavity, the left cavity is connected with an external adjustable equivalent cavity, the right cavity is connected with a product through an air pipe, and the electric proportional valve, the air-tight valve body, the pressure difference sensor and the touch screen are all connected with the control board through electric signals.

Further, the box includes the front panel, be provided with reference port, test port and start button on the front panel, the touch-sensitive screen sets up on the front panel, reference port with left cavity passes through the trachea and is connected, test port with right cavity passes through the trachea and is connected, start button with the control panel electrical signal is connected.

Further, the box still includes the bottom plate, electric proportional valve the gas tightness valve body with the atmospheric pressure difference changer is all fixed to be set up on the bottom plate, be provided with two radiator fan and two ventilation holes on the bottom plate, two radiator fan corresponds with two the ventilation hole, two radiator fan all is located the below of control panel.

Further, four adjustable foot seats are further arranged on the bottom plate, and the four adjustable foot seats are uniformly distributed at the lower end of the bottom plate.

Further, the box still includes the rear panel, be provided with air inlet port, power, switch and communication joint on the rear panel, air inlet port with electric proportional valve passes through the trachea and connects, the power switch with communication joint all with control panel electrical signal connection, switch with communication joint all is located air inlet port's top.

Further, the upper end of the box cover is provided with a hidden handle, the hidden handle comprises an arc handle, a rotating shaft and a fixing seat, and the arc handle is rotatably arranged on the fixing seat through the rotating shaft.

Compared with the traditional testing method, the utility model has the beneficial effects that through the integral design and layout of the structures such as the electric proportional valve, the airtight valve body, the air pressure difference transmitter, the control panel, the touch screen and the like, the air tightness quality detection of products with different pressures can be accurately and rapidly realized, the testing time is greatly shortened, the testing operation is convenient and rapid, the testing efficiency is greatly improved, the time and the labor are saved, the operation burden of workers is reduced, and the product detection quality is improved.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a perspective view of another view of the present utility model;

FIG. 3 is a schematic view of the internal structure of the present utility model;

fig. 4 is a schematic view of the structure of the hidden handle.

Detailed Description

As shown in fig. 1 to 4, in this embodiment, the present utility model includes a box 1 and a box cover 2, an electrical proportional valve 3, an airtight valve body 4, an air pressure difference transmitter 5, a control board 6 and a touch screen 7 are disposed in the box 1, the air pressure difference transmitter 5 includes a left chamber 8 and a right chamber 9, a pressure difference sensor is disposed between the left chamber 8 and the right chamber 9, one end of the airtight valve body 4 is connected with the electrical proportional valve 3 through an air pipe, the other end of the airtight valve body 4 is provided with two output air pipes, one is connected with the left chamber 8, the other is connected with the right chamber 9, the left chamber 8 is connected with an external adjustable equivalent cavity, the right chamber 9 is connected with a product through an air pipe, and the electrical proportional valve 3, the airtight valve body 4, the pressure difference sensor and the touch screen 7 are all connected with the control board 6 through electric signals. According to the scheme, the box cover 2 is matched with the box body 1, one end of the electric proportional valve 3 is connected with the air inlet end, the air tightness valve body 4 at the other end of the electric proportional valve 3 is connected, air pressure required by a product to be tested is regulated by the electric proportional valve 3 through the touch screen 7, the air tightness valve body 4 is input by the air pressure regulated by the electric proportional valve 3, then the air tightness valve body is output through two air pipes, one air tightness valve body is connected with the left cavity 8, the other air tightness valve body is connected with the right cavity 9, when the air pressures at the input end and the output end of the air tightness valve body 4 are the same, the air tightness valve body 4 is closed, the air tightness valve body is regulated to the pressure value of the left cavity 8 through an externally adjustable equivalent cavity, the air tightness valve body is consistent with the pressure value of the product to be tested, the pressure difference sensor is located between the left cavity 8 and the right cavity 9, and the pressure difference sensor is used for sensing the pressure difference between the left cavity 8 and the right cavity 9 and displaying the air tightness through a digital signal on the touch screen 7, and therefore whether the air tightness of the product is qualified or not is judged. Therefore, compared with the traditional testing method, the utility model has the advantages that the utility model not only has simple structure, but also can realize accurate and rapid air tightness quality detection on products with different pressures through the integral design and layout of the structures of the electric proportional valve 3, the air tightness valve body 4, the air pressure difference transmitter 5, the control panel 6, the touch screen 7 and the like, thereby greatly improving the testing efficiency, saving time and labor, reducing the operation burden of workers and improving the product detection quality, and greatly shortening the testing time.

In this embodiment, the case 1 includes a front panel 10, a reference port 11, a test port 12 and a start button 13 are disposed on the front panel 10, the touch screen 7 is disposed on the front panel 10, the reference port 11 is connected with the left chamber 8 through an air pipe, the test port 12 is connected with the right chamber 9 through an air pipe, and the start button 13 is electrically connected with the control board 6. Therefore, the reference port 11 and the test port 12 are both located below the touch screen 7, the left chamber 8 is connected with an external adjustable equivalent cavity through the reference port 11, the right chamber 9 is connected with a product to be tested through the test port 12, the start button 13 is used for controlling the air inlet end of the electric proportional valve 3, and the touch screen 7, the reference port 11 and the test port 12 are all arranged on the front panel 10, so that the product to be tested is more convenient and faster to install and debug.

In this embodiment, the case 1 further includes a bottom plate 20, the electric proportional valve 3, the airtight valve body 4, and the differential air pressure transmitter 5 are all fixedly disposed on the bottom plate 20, two cooling fans 21 and two ventilation holes 22 are disposed on the bottom plate 20, two cooling fans 21 correspond to two ventilation holes 22, and two cooling fans 21 are all located below the control board 6. Therefore, the electric proportional valve 3, the airtight valve body 4 and the air pressure difference transmitter 5 are uniformly distributed on the bottom plate 20, and the two heat dissipation fans 21 are arranged at the two vent holes 22 for dissipating heat from the control board 6 and the box body 1 thereof, so that good working performance of the utility model is ensured.

In this embodiment, four adjustable seats 23 are further disposed on the bottom plate 20, and the four adjustable seats 23 are uniformly distributed at the lower end of the bottom plate 20. Therefore, four adjustable feet 23 are connected with the bottom plate 20 through screws, and rubber blocks are arranged on the four adjustable feet 23, so that stability and practicability of the utility model are further improved.

In this embodiment, the case 1 further includes a rear panel 30, an air inlet interface 31, a power supply 32, a power switch 33 and a communication connector 34 are disposed on the rear panel 30, the air inlet interface 31 is connected with the electric proportional valve 3 through an air pipe, the power supply 32, the power switch 33 and the communication connector 34 are all electrically connected with the control board 6, and the power switch 33 and the communication connector 34 are all located above the air inlet interface 31. Therefore, the power switch 33 and the communication connector 34 are arranged on the outer side of the rear panel 30 in parallel, the power supply 32 is arranged on the inner side of the rear panel 30, the air inlet interface 31 is arranged on the outer side of the rear panel 30 and below the power switch 33, the air inlet interface 31 is used for connecting the electric proportional valve 3 and an external air source, and the communication connector 34 can be connected with communication equipment for information transmission, so that the requirements of different tests are met, and the application field of the utility model is further improved.

In this embodiment, the upper end of the case cover 2 is provided with a hidden handle 40, the hidden handle 40 includes a circular arc handle 41, a rotation shaft 42, and a fixing seat 43, and the circular arc handle 41 is rotatably disposed on the fixing seat 43 through the rotation shaft 42. Therefore, the fixing seat 43 is fixedly arranged at the upper end of the box cover 2, the length of the rotating shaft 42 is larger than the thickness of the circular arc handle 41, when the box is not used, the circular arc end of the circular arc handle 41 is hidden in the box cover 2 under the gravity, the bottom end of the circular arc handle 41 is flush with the upper end of the fixing seat 43, when the box is used, the circular arc handle 41 is pressed down, the circular arc handle 41 rotates around the rotating shaft 42, then the circular arc end of the circular arc handle 41 rotates out, the tester can be lifted through the circular arc handle 41, and the hidden handle 40 is designed to enable the box to be more convenient to carry and attractive in appearance.

In this embodiment, the working principle of the present utility model is as follows:

When the air tightness of the product needs to be detected, the test port 12 is connected with the product to be detected, the reference port 11 is connected with an external adjustable equivalent cavity, the air inlet interface 31 is communicated with an external air source, the electric proportional valve 3 and the external adjustable equivalent cavity are adjusted to be consistent with the pressure value tested by the product to be detected, then the start button 13 is pressed, the product is inflated until the air pressures at the input end and the output end of the air tightness valve body 4 are consistent, the valve core of the air tightness valve body 4 is closed, the product to be detected enters a pressure maintaining state, if the pressures at the two sides of the left cavity 8 and the right cavity 9 are consistent, the reading of the differential pressure sensor is zero, the product is qualified, and if the reading of the differential pressure sensor is bigger, the product to be detected is leaked, and the product is disqualified.

While the embodiments of this utility model have been described in terms of practical aspects, they are not to be construed as limiting the meaning of this utility model, and modifications to the embodiments and combinations with other aspects thereof will be apparent to those skilled in the art from this description.

Claims

1. The air tightness tester is characterized in that an electric proportional valve (3), an air tightness valve body (4), an air pressure difference transmitter (5), a control panel (6) and a touch screen (7) are arranged in the box (1), the air pressure difference transmitter (5) comprises a left cavity (8) and a right cavity (9), a pressure difference sensor is arranged between the left cavity (8) and the right cavity (9), one end of the air tightness valve body (4) is connected with the electric proportional valve (3) through an air pipe, the other end of the air tightness valve body (4) is provided with two output air pipes, one is connected with the left cavity (8), the other is connected with the right cavity (9), the left cavity (8) is connected with an external adjustable equivalent cavity, the right cavity (9) is connected with a product through an air pipe, and the electric proportional valve (3), the air tightness valve body (4), the pressure difference sensor and the touch screen (7) are all connected with the control panel (6) through air signals.

2. The air tightness tester as claimed in claim 1, wherein the box body (1) comprises a front panel (10), a reference port (11), a test port (12) and a start button (13) are arranged on the front panel (10), the touch screen (7) is arranged on the front panel (10), the reference port (11) is connected with the left chamber (8) through an air pipe, the test port (12) is connected with the right chamber (9) through an air pipe, and the start button (13) is electrically connected with the control board (6).

3. The air tightness tester according to claim 1, wherein the box body (1) further comprises a bottom plate (20), the electric proportional valve (3), the air tightness valve body (4) and the air pressure difference transmitter (5) are fixedly arranged on the bottom plate (20), two cooling fans (21) and two ventilation holes (22) are arranged on the bottom plate (20), the two cooling fans (21) correspond to the two ventilation holes (22), and the two cooling fans (21) are located below the control board (6).

4. The air tightness tester as claimed in claim 3, wherein four adjustable feet (23) are further arranged on the bottom plate (20), and the four adjustable feet (23) are uniformly distributed at the lower end of the bottom plate (20).

5. The air tightness tester according to claim 1, wherein the box body (1) further comprises a rear panel (30), an air inlet interface (31), a power supply (32), a power switch (33) and a communication connector (34) are arranged on the rear panel (30), the air inlet interface (31) is connected with the electric proportional valve (3) through an air pipe, the power supply (32), the power switch (33) and the communication connector (34) are all electrically connected with the control board (6), and the power switch (33) and the communication connector (34) are all located above the air inlet interface (31).

6. The air tightness tester as claimed in claim 1, wherein the upper end of the box cover (2) is provided with a hidden handle (40), the hidden handle (40) comprises an arc handle (41), a rotating shaft (42) and a fixing seat (43), and the arc handle (41) is rotatably arranged on the fixing seat (43) through the rotating shaft (42).