CN202748201U

CN202748201U - Leakproof testing device

Info

Publication number: CN202748201U
Application number: CN 201220394918
Authority: CN
Inventors: 陈庆贤; 曾佳丽; 陈澔君
Original assignee: HONGJI IND CO Ltd
Current assignee: HONGJI IND CO Ltd
Priority date: 2012-08-09
Filing date: 2012-08-09
Publication date: 2013-02-20
Anticipated expiration: 2022-08-09

Abstract

The utility model relates to a leakproof testing device which is provided with a testing bed and testing equipment. The testing bed is provided with a body; a first testing space is formed in the body; the first testing space is connected with an air pump; one side of the first testing space is provided with a second testing space; a passage for communicating the first testing space and the second testing space is arranged in the body; a second valve is arranged in the passage; the testing equipment is provided with a displacement detector and a pressure detector; and the displacement detector and the pressure detector are connected to a microprocessor.

Description

Leakage proof tester

Technical field

The utility model relates to a kind of leakage proof tester, particularly detects the proving installation of determinand water resistance in the gas boosting mode.

Background technology

Along with science and technology is flourishing, portable electronic equipment such as notebook computer or personal digital assistant (Personal Digital Assistant, PDA) become gradually daily necessities, but this electronic product can along with the user under rugged surroundings, or under unsettled outdoor environment, be operated, tend to because of attachment of moisture electronic product be damaged, therefore, namely there is relevant dealer for its design of electronic products of releasing waterproof effect to be arranged, but the water-proof function in order to ensure electronic product can normally be brought into play, the dealer all can carry out waterproof leakproof test before electronic product dispatches from the factory, and general leakage proof tester only utilizes a kind of mode to test mostly, accuracy rate is lower, then produces many problems after causing electronic product to be sold to the user.

Therefore, how to solve above-mentioned existing issue and disappearance, be the problem of relevant research and development that the dealer desires most ardently.

Summary of the invention

Fundamental purpose of the present utility model is, the leak resistance of utilizing gaseous tension to test determinand with multiple different test mode is to improve the accuracy rate of test.

For reaching above-mentioned purpose, leakage proof tester of the present utility model is provided with Test bench and checkout equipment, wherein:

This Test bench has body, be provided with to put determinand in the body and be the first airtight test space, first test space is connected with pneumatic pump, and first test space, one side is provided with second test space that is airtight, and be provided with to open the loam cake of first test space in body one side, and top cap is connected to driver, and be provided with the passage that is communicated with first test space and second test space in the body, and in passage, be provided with the second valve of opening or close in order to control channel.

This checkout equipment has to detect the displacement detection device of determinand surface displacement amount, and in order to detect the pressure detection device of gaseous tension in first test space, and displacement detection device and pressure detection device are connected in microprocessor, and microprocessor stores displacement setting value, the first pressure set points and the second pressure set points.

The leakage proof tester that the utility model proposes, wherein, body one side of this Test bench is provided with to open the loam cake of described first test space.

The leakage proof tester that the utility model proposes, wherein, the described top cap of this Test bench is connected to driver.

Compared with prior art, the beneficial effects of the utility model are, test the leak resistance of determinand from different angles by a plurality of parameters, can greatly improve the accuracy rate of test.

Description of drawings

Fig. 1 is sectional view of the present utility model.

Fig. 2 is section action schematic diagram of the present utility model.

Fig. 3 is calcspar of the present utility model.

Fig. 4 is action flow chart of the present utility model.

Description of reference numerals: 1-Test bench; The 11-body; The 111-passage; 112-the second valve; 113-the first valve; 12-first test space; 13-second test space; The 14-pneumatic pump; The 15-loam cake; The 16-driver; The 2-checkout equipment; The 21-microprocessor; 211-displacement setting value; 212-the first pressure set points; 213-the second pressure set points; 22-displacement detection device; 23-pressure detection device; The 3-determinand.

Embodiment

See also Fig. 1 to shown in Figure 3, by knowing among the figure that the utility model leakage proof tester is provided with Test bench 1 and checkout equipment 2, wherein:

This Test bench 1 has body 11, be provided with to put determinand 3 in the body 11 and be the first airtight test space 12, and be provided with to open the loam cake 15 of first test space 12 in body 11 1 sides, and loam cake 15 is connected with driver 16, and first test space 12 is to be connected with pneumatic pump 14, be provided with the first valve 113 between pneumatic pump 14 and first test space 12, and first test space, 12 1 sides are provided with second test space 13 that is airtight, and be provided with the passage 111 that is communicated with first test space 12 and second test space 13 in the body 11, and in passage 111, be provided with the second valve 112 of opening or close in order to control channel 111.

This checkout equipment 2 has to detect the displacement detection device 22 of determinand 3 surface displacement amounts, and in order to detect the pressure detection device 23 of first test space, 12 interior gaseous tensions, and displacement detection device 22 is connected in microprocessor 21 with pressure detection device 23, and in microprocessor 21, store displacement setting value 211, the first pressure set points 212 and the second pressure set points 213.

See also Fig. 1 to shown in Figure 4, find out by knowing among the figure, when the utility model when using, be to carry out according to the following step:

(100) determinand 3 is placed in first test space 12, and cover loam cake 15 and make first test space 12 and second test space 13 be airtight shape, and close the second valve 112 passage 111 is closed, in order to separate first test space 12 and second test space 13.

(101) utilize pneumatic pump 14 that gas is poured in first test space 12, this moment, 23 meetings of pressure detection device continued the gaseous tension in detecting first test space 12, gaseous tension in first test space 12, when reaching the first pressure set points 212 that microprocessor 21 sets, namely stop pneumatic pump 14 gas is poured in first test space 12, and close the first valve 113 to keep the gaseous tension in first test space 12.

(102) utilize displacement detection device 22 detecting determinands 3 surfaces because being subjected to gaseous tension to produce the deformation displacement amount of distortion, microprocessor 21 is for comparing deformation displacement amount and the microprocessor 21 interior stored displacement setting values 211 that displacement detection device 22 is detected, if the deformation displacement amount during more than or equal to displacement setting value 211, then carry out step 103; If the deformation displacement amount during less than displacement setting value 211, then carry out step 106.

(103) leave standstill determinand after 3 a period of times, allow pressure detection device 23 again detect gaseous tension in first test space 12, and compare with stored the first pressure set points 212 of microprocessor 21, if the gaseous tension in first test space 12 is equal to the first pressure set points 212, then carry out step 104; If the gaseous tension in first test space 12 then carry out step 106 less than the first pressure set points 212.

(104) the second valve 112 of the passage 111 places setting of unlatching body 11, make first test space 12 and second test space 13 be connected state, and utilize pressure detection device 23 again to detect gaseous tension in first test space 12, and compare with stored the second pressure set points 213 of microprocessor 21, if the gaseous tension in first test space 12 equates or less than the second pressure set points 213, then carry out step 105; If the gaseous tension in first test space 12 then carry out step 106 greater than the second pressure set points 213.

(105) leak resistance of judgement determinand 3 is good.

(106) leak resistance of judgement determinand 3 is not enough.

Moreover, microprocessor 21 stored the second pressure set points 213, it is gaseous tension in the space behind the volume of first test space 12 deduction determinands 3, with gaseous tension in the space of second test space 13, theoretical value after being communicated with first test space 12 and second test space 13, therefore, when if determinand 3 has airtight incomplete situation, gas in first test space 12 can be when pneumatic pump 14 pressurizations first test space 12, and gas is entered in the determinand 3, therefore, determinand 3 can increase the space that first test space 12 is held gas, when allowing first test space 12 be communicated with second test space 13, average pressure value can judge by this greater than theoretical value whether determinand 3 has the airtight incomplete situation of generation.

Claims

1. a leakage proof tester is provided with Test bench and checkout equipment, it is characterized in that:

This Test bench has body, be provided with in the described body to put determinand and be the first airtight test space, described first test space is connected with pneumatic pump, and described first test space, one side is provided with second test space that is airtight, and be provided with the passage that is communicated with described first test space and described second test space in the described body, and in described passage, be provided with to control the second valve that described passage is opened or closed;

This checkout equipment also has to detect the displacement detection device of determinand surface displacement amount, and in order to detecting the pressure detection device of gaseous tension in described first test space, and described displacement detection device and described pressure detection device are connected in microprocessor.

2. leakage proof tester as claimed in claim 1 is characterized in that, body one side of this Test bench is provided with to open the loam cake of described first test space.

3. leakage proof tester as claimed in claim 2 is characterized in that, the described top cap of this Test bench is connected to driver.