Airtightness detector

Abstract

The utility model discloses an air tightness detector, relates to the technical field of air tightness detectors, and comprises an air tightness detector main body, four supporting rods are symmetrically fixed on the top surface of the air tightness detector main body, the four supporting rods are symmetrically arranged at the top end of the air tightness detector main body, and two spacing plates are sleeved on the supporting rods, so that the air tightness detector can be used for detecting air tightness. Meanwhile, the spacing plates are pushed to move downwards through a hydraulic cylinder, so that the hydraulic cylinder drives the two different spacing plates to press downwards at the same time, detection molds placed below the different spacing plates can detect at the same time, and meanwhile, when the hydraulic cylinder is reset through a reset spring, the spacing plates are ejected upwards; the problems that in the prior art, only one mobile phone can be detected when a traditional airtight detector detects the mobile phones, the mobile phones need to be frequently and repeatedly placed when multiple mobile phones need to be detected, and meanwhile, when the sizes of the mobile phones are different, a new mobile phone fixing mold needs to be replaced for each detection are solved.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing instruments, and in particular to an airtightness testing instrument. Background Technology

[0002] An airtightness tester is a device used to test the sealing performance of an object or system. It is mainly used to measure gas leakage rate or pressure changes to ensure that it meets design requirements. It determines whether there is a leak by filling the object under test with gas and monitoring pressure changes or gas flow. Airtightness testers are widely used in industries such as automotive, medical, home appliances, and packaging to test the sealing performance of parts, containers, or systems. Its core components include pressure sensors, flow meters, control systems, and data analysis modules, enabling high-precision and automated testing. According to the testing principle, it can be divided into pressure drop method, flow method, and differential pressure method, etc. Airtightness testers are characterized by high efficiency, accuracy, and non-destructive operation, and are an important tool for ensuring product quality and safety.

[0003] However, in the existing technology, traditional air tightness testers can often only test one mobile phone. When multiple mobile phones need to be tested, the phones often need to be placed repeatedly. At the same time, when the size of the mobile phones is different, a new mobile phone fixing mold needs to be changed for each test. This makes it cumbersome for staff to test the air tightness of mobile phones and greatly reduces the testing efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the technology of traditional airtightness testers, which can often only test one mobile phone. When multiple mobile phones need to be tested, the phones often need to be placed repeatedly. At the same time, when the mobile phones are of different sizes, a new mobile phone fixing mold needs to be changed for each test. Therefore, an airtightness tester is proposed.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: It includes an airtightness testing instrument body, with four support rods symmetrically fixed to the top surface of the body. Two partition plates are arranged above the body, each partition plate being slidably fitted onto the four support rods. Two return springs are slidably fitted onto each support rod, with the two return springs located below the two partition plates respectively. A testing instrument top cover is fixed to the top surface of the four support rods. The rear end of the testing instrument top cover is fixedly connected to the airtightness testing instrument body via a testing instrument support plate. A hydraulic cylinder is fixed to the top of the testing instrument top cover, with its output end extending below the top cover and fixedly connected to the top surface of the upper partition plate. Fixing plates are fixed to the top surfaces of both the airtightness testing instrument body and the lower partition plates. A testing mold is arranged on one side of each fixing plate, and a fixing device is arranged at the end of each testing mold away from the fixing plate. A testing device is arranged on the fixing plate, and a rubber pad is arranged at the bottom of each partition plate.

[0006] Preferably, the fixing device includes an adjusting screw, and adjusting plates are fixed to the top surface of the airtightness detector body and the lower partition plate, with an adjusting screw threadedly connected inside each adjusting plate.

[0007] Preferably, the detection device includes an airtightness detection vent, one end of which is connected to an air supply pipe away from the fixed plate, the other end of which is connected to the main body of the airtightness detector, and a sliding groove is provided on the top surface of the fixed plate, with the bottom end of the airtightness detection vent slidably connected inside the sliding groove.

[0008] Preferably, the four reset springs under each of the spacers have the same length and elastic potential energy, and the top of each reset spring under the spacer is fixedly connected to the bottom of the corresponding spacer.

[0009] Preferably, the hydraulic cylinder is located directly above the center of the partition plate, and the output end of the hydraulic cylinder is a multi-stage hydraulic rod.

[0010] Preferably, each of the adjusting screws has a rubber head rotatably connected to the end near the testing mold, and the end of the adjusting screw away from the fixed plate is provided with anti-slip stripes.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, four support rods are symmetrically arranged at the top of the airtightness tester, and two spacer plates are fitted on the support rods. At the same time, the spacer plates are pushed downward by a hydraulic cylinder, so that the hydraulic cylinder drives the two different spacer plates to press down at the same time. This allows the test molds placed under different spacer plates to be tested simultaneously. At the same time, the return spring causes the hydraulic cylinder to return to its original position and push the spacer plates upward. This solves the problem that traditional airtightness testers can only test one mobile phone at a time. When multiple mobile phones need to be tested, the phones often need to be placed repeatedly. Also, when the mobile phones are of different sizes, a new mobile phone fixing mold needs to be replaced for each test.

[0013] 2. In this utility model, a fixing plate is fixed to the top surface of the airtightness tester body and the lower partition plate, and the airtightness test vent slides on the fixing plate. At the same time, it is connected to the airtightness tester body through an air supply pipe, so that the airtightness test vent can be adapted to the air hole position of different mobile phone models. At the same time, when the staff changes the test mold, the adjustable setting of the adjusting screw can make test molds of different lengths fixed on the top surface of the airtightness tester body and the lower partition plate. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of the front end of an airtightness tester is provided for this utility model;

[0015] Figure 2 This utility model provides a bottom-view three-dimensional structural diagram of an airtightness testing instrument;

[0016] Figure 3 This utility model provides a three-dimensional structural diagram of an airtightness tester after it has been opened;

[0017] Figure 4 This invention provides a partial A-dimensional structural diagram of an airtightness testing instrument.

[0018] Legend: 1. Air tightness tester body; 2. Tester top cover; 3. Tester support plate; 4. Test mold; 5. Fixing plate; 6. Air tightness test vent; 7. Air supply pipe; 8. Slide groove; 9. Adjusting screw; 10. Support rod; 11. Return spring; 12. Spacer plate; 13. Hydraulic cylinder; 14. Rubber pad; 15. Adjusting plate. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. Example 1

[0021] like Figure 1-4 As shown, this utility model provides an airtightness detector, including an airtightness detector body 1. Four support rods 10 are symmetrically fixed to the top surface of the airtightness detector body 1. Two partition plates 12 are arranged above the airtightness detector body 1. Each partition plate 12 is slidably sleeved on the four support rods 10. Two return springs 11 are slidably sleeved on each support rod 10, with the two return springs 11 located below the two partition plates 12 respectively. A detector top cover 2 is fixed to the top surface of the four support rods 10. The rear end of the detector top cover 2 is connected to the airtightness detector via a detector support plate 3. The main body 1 of the instrument is fixedly connected. A hydraulic cylinder 13 is fixed to the top of the top cover 2 of the instrument. The output end of the hydraulic cylinder 13 extends to the bottom of the top cover 2 of the instrument and is fixedly connected to the top surface of the upper partition plate 12. The main body 1 of the airtightness tester and the top surface of the lower partition plate 12 are both fixed with a fixing plate 5. Each fixing plate 5 has a test mold 4 on one side. Each test mold 4 has a fixing device at the end away from the fixing plate 5. The fixing plate 5 is equipped with a test device. Each partition plate 12 has a rubber pad 14 at the bottom, so that the main body 1 of the airtightness tester can test multiple mobile phones.

[0022] The specific setup and function of this embodiment are described below: The detection device includes an airtightness detection vent 6. One end of the airtightness detection vent 6 away from the fixed plate 5 is connected to an air supply pipe 7. The other end of the air supply pipe 7 is connected to the airtightness detector body 1. A sliding groove 8 is provided on the top surface of the fixed plate 5. The bottom end of the airtightness detection vent 6 is slidably connected to the inside of the sliding groove 8. The four reset springs 11 under each partition plate 12 have the same length and elastic potential energy. The top end of each reset spring 11 under each partition plate 12 is fixedly connected to the bottom end of the corresponding partition plate 12. The hydraulic cylinder 13 is located directly above the center of the partition plate 12. The output end of the hydraulic cylinder 13 is a multi-stage hydraulic rod, so that the space height under each partition plate 12 is the same. Example 2

[0023] like Figure 1-4 As shown, the fixing device includes an adjusting screw 9. Adjusting plates 15 are fixed on the top surface of the airtightness tester body 1 and the lower partition plate 12. Each adjusting plate 15 is threaded with an adjusting screw 9, so that the adjusting screw 9 can be adapted to test molds 4 of different sizes.

[0024] The overall effect of this embodiment is that each adjusting screw 9 has a rubber head rotatably connected to the end near the detection mold 4, and the end of the adjusting screw 9 away from the fixed plate 5 is provided with anti-slip stripes, which improves the ease of operation for the staff.

[0025] The operating method and working principle of this device are as follows: The operator selects a mold matching the model of the mobile phone to be tested and places it on the top surface of the airtightness testing instrument body 1 and the lower partition plate 12. By rotating the adjusting screw 9, the mold is fixed by sliding it on the adjusting plate 15. The operator can then place different mobile phones into their corresponding molds and align the airtightness testing vent 6 with the air holes on the mobile phone. At this point, the hydraulic cylinder 13 is activated by the airtightness testing instrument body 1, causing the upper partition plate 12 to move downwards. Simultaneously, the partition plate 12 moves, causing the return spring 11 to move, so that the upper partition plate 12 and the lower partition plate 12 fit together and continue to move downward, driving the lower partition plate 12 to move towards the top surface of the airtightness tester body 1, thus fixing the mobile phones inside the two test molds 4. At this time, the airtightness tester body 1 tests the two mobile phones simultaneously. After the test is completed, the airtightness tester body 1 resets the hydraulic cylinder 13, and the return spring 11 rebounds, driving the two partition plates 12 to move upward simultaneously, thereby releasing the fixation of the mobile phones by the partition plates 12. At this time, the staff can take out the mobile phones.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An airtightness detector, comprising an airtightness detector body (1), characterized in that: The airtightness tester body (1) has four support rods (10) symmetrically fixed on its top surface. Two partition plates (12) are provided above the airtightness tester body (1). Each partition plate (12) is slidably sleeved on the four support rods (10). Two return springs (11) are slidably sleeved on each support rod (10). The two return springs (11) are located below the two partition plates (12). The tester top cover (2) is fixed on the top surface of the four support rods (10). The rear end of the tester top cover (2) is connected to the airtightness tester body (1) through the tester support plate (3). The top of the top cover (2) of the detector is fixedly connected to a hydraulic cylinder (13). The output end of the hydraulic cylinder (13) extends to the bottom of the top cover (2) of the detector and is fixedly connected to the top surface of the upper partition plate (12). The top surfaces of the airtightness detector body (1) and the lower partition plate (12) are both fixed with a fixing plate (5). Each fixing plate (5) has a testing mold (4) on one side. Each testing mold (4) has a fixing device at the end away from the fixing plate (5). The fixing plate (5) is equipped with a testing device. Each partition plate (12) has a rubber pad (14) at the bottom.

2. The airtightness detector according to claim 1, characterized in that: The fixing device includes an adjusting screw (9), and the top surfaces of the airtightness tester body (1) and the lower partition plate (12) are both fixed with adjusting plates (15), and each adjusting plate (15) is threaded with an adjusting screw (9).

3. The airtightness detector according to claim 1, characterized in that: The detection device includes an airtightness detection vent (6), one end of which is away from the fixed plate (5) is connected to an air supply pipe (7), and the other end of the air supply pipe (7) is connected to the airtightness detector body (1). A sliding groove (8) is provided on the top surface of the fixed plate (5), and the bottom end of the airtightness detection vent (6) is slidably connected to the inside of the sliding groove (8).

4. The airtightness detector according to claim 1, characterized in that: The four reset springs (11) under each of the spacers (12) have the same length and elastic potential energy, and the top of each reset spring (11) under each spacer (12) is fixedly connected to the bottom of the corresponding spacer (12).

5. The airtightness detector according to claim 1, characterized in that: The hydraulic cylinder (13) is located directly above the center of the partition plate (12), and the output end of the hydraulic cylinder (13) is a multi-stage hydraulic rod.

6. The airtightness detector according to claim 2, characterized in that: Each of the adjusting screws (9) has a rubber head rotatably connected to one end near the testing mold (4), and the other end of the adjusting screw (9) away from the fixed plate (5) is provided with anti-slip stripes.

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