High-precision air tightness detection device

Abstract

The utility model provides a high-precision air tightness detection device, which belongs to the technical field of air tightness detection, and comprises a box body, a cavity is arranged in the box body, a detection assembly is arranged above the box body, the detection assembly is used for detecting the air tightness of a product, the detection assembly comprises a box cover, the box cover is arranged at the top of the box body, and the box cover is arranged in the cavity. Hasps are installed on the side walls of the box cover and the box body through bolts, a bottom plate is installed on the top of the box cover through bolts, two carriers are detachably installed on the top of the bottom plate, quick connectors are installed on the side walls of the carriers in a penetrating mode, a vertical plate is installed on the top of the box cover through bolts, and a fixing base is installed on the top of the side wall of the vertical plate through bolts; and a pull-down handle is rotationally mounted in the fixed seat. According to the utility model, through the arrangement of the detection assembly, quantitative detection can be carried out on the air tightness of the product, the detection operation is simple, the detection efficiency is improved, the pressure head and the carrier can be replaced according to the product, and the adaptability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, and in particular to a high-precision airtightness testing device. Background Technology

[0002] Air tightness testing is a key step in ensuring product quality and safety. It is often used to test the sealing of electronic products, automotive parts, or medical equipment housings. With the upgrading of industrial technology, the downstream industry's demand for testing accuracy has increased from the traditional milligram level to the microgram level for leakage identification. The accurate identification of minute leaks is directly related to product safety and service life, thus requiring a high-precision air tightness testing device.

[0003] The prior art, disclosed in CN211261689U, discloses a high-precision pressure vessel airtightness testing device, which "includes a base plate, a water tank fixedly connected to the top of the base plate, a drain valve connected to the bottom of the left side of the water tank, support rods fixedly connected to both sides of the top of the water tank, a top plate fixedly connected between the tops of the two support rods, and a first electric telescopic rod fixedly connected to the top of the top plate".

[0004] The aforementioned airtightness testing device uses the water immersion method for airtightness testing. However, the water immersion method has low accuracy in airtightness testing and cannot perform quantitative testing. After completing the airtightness test of the product, the product also needs to be dried, which is quite troublesome and affects the testing efficiency. On the other hand, some pneumatic testing devices have complex fixture sealing structures and low efficiency when changing the test piece, which in turn affects the airtightness testing efficiency. Furthermore, the testing devices have poor adaptability to multiple product specifications and lack versatility. Utility Model Content

[0005] To address the aforementioned problems, this invention proposes a high-precision airtightness testing device, which more accurately solves the problems of low testing efficiency and poor device adaptability of existing airtightness testing devices.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model proposes a high-precision airtightness testing device, including a box with a cavity inside. The side wall of the box has a power interface, a fan vent and control buttons. A testing component is set on the top of the box for testing the airtightness of the product.

[0008] The testing assembly includes a lid, which is located on the top of the housing. The lid is bolted to the side wall of the housing and fastened with a buckle. A base plate is bolted to the top of the lid. Two sets of carriers are detachably mounted on the top of the base plate. Quick connectors are installed through the side walls of the carriers. An airtightness tester is located on one side of the housing and is connected to the quick connectors via a hose.

[0009] Furthermore, handles are bolted to the side walls of the box, and shock-absorbing columns are symmetrically installed at the four corners of the bottom of the box.

[0010] Furthermore, the lid is correspondingly positioned to the body of the chamber, and the side wall of the airtightness tester is equipped with control buttons and a display screen.

[0011] Furthermore, the top of the carrier is fitted with a product-shaped sealing ring, and the quick connector has an L-shaped cross-section.

[0012] Furthermore, a vertical plate is bolted to the top of the box cover, and a fixed seat is bolted to the top of the side wall of the vertical plate. A pull-down handle is rotatably installed inside the fixed seat, and a limit cylinder is installed on the inner wall of the fixed seat. Connecting parts are symmetrically rotatably installed on both sides of the pull-down handle, and a pressure rod is rotatably installed between the ends of the connecting parts. An adjusting nut is screwed onto the outside of the pressure rod.

[0013] Furthermore, the pull-down handle is fitted with an anti-slip soft sleeve, the pressure rod passes through the limiting cylinder, the pressure rod is slidably disposed with the limiting cylinder, and the connecting piece has an L-shaped cross-section.

[0014] Furthermore, a slide rail is bolted to the side wall of the upright plate, a limit block is installed at the bottom of the slide rail, a slider is slidably mounted on the outside of the slide rail, an mounting block is bolted to the side wall of the slider, an mounting plate is bolted to the bottom of the mounting block, multiple sets of mounting holes are evenly distributed on the surface of the mounting plate, and two sets of pressure heads are detachably mounted on the bottom of the mounting plate.

[0015] Furthermore, the mounting block has a U-shaped cross-section, the bottom of the pressure head is fitted with a product-shaped sealing ring, and the pressure head is correspondingly positioned with the carrier.

[0016] The beneficial effects of this utility model are:

[0017] This utility model proposes a high-precision airtightness testing device. With the configuration of a pull-down handle, limiting cylinder, connecting piece, pressure rod, slide rail, slider, mounting block, mounting plate, pressure head, carrier, airtightness tester and quick connector, it can quantitatively test the airtightness of products, achieve high-precision airtightness testing, is simple to operate and improves the efficiency of product airtightness testing.

[0018] With the detachable design of the carrier and pressure head, the device can be easily and conveniently replaced according to the product to be tested, reducing the cost of additional purchases for different products and improving the adaptability and versatility of the testing device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the box body and box lid structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the detection component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the mounting plate structure of this utility model.

[0023] The attached figures are labeled as follows:

[0024] In the diagram: 1. Box body; 2. Handle; 3. Box cover; 4. Hook and loop; 5. Base plate; 6. Carrier; 7. Quick connector; 8. Vertical plate; 9. Fixed base; 10. Pull-down handle; 11. Limiting cylinder; 12. Connecting piece; 13. Pressing rod; 14. Adjusting nut; 15. Slide rail; 16. Limiting block; 17. Sliding block; 18. Mounting block; 19. Mounting plate; 20. Mounting hole; 21. Pressure head; 22. Air tightness tester. Detailed Implementation

[0025] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.

[0026] Please refer to Figures 1-4 This utility model proposes a high-precision airtightness testing device, characterized in that it includes a housing 1, the housing 1 having an internal cavity, a testing component mounted on the top of the housing 1 for testing the airtightness of the product, handles 2 bolted to the side walls of the housing 1 for easy movement of the testing device by the user, a power interface, a fan vent, and control buttons pre-installed on the side walls of the housing 1, the control buttons being reconfigurable for electronic or pneumatic control, selectable according to different product airtightness requirements, and offering flexible and selective options, and shock-absorbing columns symmetrically mounted at the four corners of the bottom of the housing 1.

[0027] The testing assembly includes a lid 3, which is located on top of the housing 1. The lid 3 is bolted to the side wall of the housing 1 via a latch 4 for connection and fixation. A base plate 5 is bolted to the top of the lid 3 for mounting and fixing a carrier 6. Two carriers 6 are detachably mounted on the top of the base plate 5 for product placement and positioning. Quick connectors 7 are threaded through the side walls of the carriers 6 for connection to the airtightness tester 22. A product-shaped sealing ring is affixed to the top of the carrier 6 to ensure sealing. The quick connector 7 has an L-shaped cross-section. When airtightness testing is required, the user connects the hose of the airtightness tester 22 to the quick connector 7, and then places the product to be tested into the carrier 6 for subsequent airtightness testing. The user can replace the carrier 6 and the sealing ring according to the product to be tested, making it portable and convenient, improving the adaptability of the device.

[0028] A vertical plate 8 is bolted to the top of the cover 3. A fixing seat 9 is bolted to the top of the side wall of the vertical plate 8 to limit the pull-down handle 10. The pull-down handle 10 is rotatably installed inside the fixing seat 9. A limiting cylinder 11 is installed on the inner wall of the fixing seat 9 to limit the pressure rod 13. Connecting parts 12 are symmetrically rotatably installed on both sides of the pull-down handle 10. A pressure rod 13 is rotatably installed between the ends of the connecting parts 12. An adjusting nut 14 is threaded onto the outside of the pressure rod 13 to adjust the up and down stroke of the mounting block 18. An anti-slip soft sleeve is fitted onto the outside of the pull-down handle 10. The pressure rod 13 passes through the limiting cylinder 11 and slides with the limiting cylinder 11. The connector 12 has an L-shaped cross-section. A slide rail 15 is bolted to the side wall of the upright plate 8 to limit the movement of the slider 17, ensuring its vertical movement. A limit block 16 is installed at the bottom of the slide rail 15 to limit the downward stroke of the slider 17. The slider 17 is slidably mounted on the outside of the slide rail 15. An mounting block 18 is bolted to the side wall of the slider 17. An mounting plate 19 is bolted to the bottom of the mounting block 18. Multiple sets of mounting holes 20 are evenly distributed on the surface of the mounting plate 19 to facilitate subsequent adjustment of the left and right positions of the pressure head 21. Two sets of pressure heads 21 are detachably mounted at the bottom of the mounting plate 19 for pressing and sealing the product. The housing... An airtightness tester 22 is installed on one side to test the airtightness of the product. The mounting block 18 has a U-shaped cross-section. The bottom of the pressure head 21 is fitted with a product-shaped sealing ring. The pressure head 21 is correspondingly positioned with the carrier 6. The airtightness tester 22 is connected to the quick connector 7 via a hose. After placing the product, the user rotates the adjusting nut 14 to control the pull-down handle 10 to press down until it reaches the appropriate position of the product to be tested. Then, the adjusting nut 14 is tightened to fix the pressing position. Then, the pull-down handle 10 is pressed down. With the cooperation of the connector 12, the limiting cylinder 11, the slide rail 15, and the slider 17, the mounting block 18 moves down. The downward movement of the mounting block 18 causes the mounting plate 19 and the pressure head 21 to move down until they reach the adjusted and fixed pressing position. At the pressure head 21, the bottom contour sealing ring and the top contour sealing ring of the carrier 6 press the product to be tested into the middle to achieve a vacuum seal. Finally, the air tightness tester 22 passes test gas and fills the carrier 6 with a set pressure through the quick connector 7 to complete the quantitative test of the product's air tightness and achieve high-precision testing of the product. With the setting of the adjusting nut 14, the downward stroke of the pressure head 21 can be controlled, which is convenient for testing products of different specifications. After the test is completed, the pull handle 10 is moved up to reset the pressure head 21 and the slider 17. The user can also adjust the position of the pressure head 21 or replace the pressure head 21 to adapt to different products. The whole device is small and lightweight, easy to operate, and improves the testing efficiency of product air tightness.

[0029] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A high-precision airtightness testing device, characterized in that, The product includes a housing with an internal cavity. The side wall of the housing has a power interface, a fan vent, and control buttons. A detection component is installed on the top of the housing to detect the airtightness of the product. The testing assembly includes a lid, which is located on the top of the housing. The lid is bolted to the side wall of the housing and fastened with a buckle. A base plate is bolted to the top of the lid. Two sets of carriers are detachably mounted on the top of the base plate. Quick connectors are installed through the side walls of the carriers. An airtightness tester is located on one side of the housing and is connected to the quick connectors via a hose.

2. The high-precision airtightness testing device according to claim 1, characterized in that, Handles are bolted to the side walls of the box, and shock-absorbing columns are symmetrically installed at the four corners of the bottom of the box.

3. The high-precision airtightness testing device according to claim 1, characterized in that, The lid is correspondingly set to the body of the box, and the side wall of the airtightness tester is equipped with control buttons and a display screen.

4. The high-precision airtightness testing device according to claim 1, characterized in that, The top of the carrier is fitted with a product-shaped sealing ring, and the quick connector has an L-shaped cross-section.

5. The high-precision airtightness testing device according to claim 1, characterized in that, A vertical plate is bolted to the top of the box cover, and a fixed seat is bolted to the top of the side wall of the vertical plate. A pull-down handle is rotatably installed inside the fixed seat, and a limit cylinder is installed on the inner wall of the fixed seat. Connecting parts are symmetrically rotatably installed on both sides of the pull-down handle, and a pressure rod is rotatably installed between the ends of the connecting parts. An adjusting nut is screwed onto the outside of the pressure rod.

6. The high-precision airtightness testing device according to claim 5, characterized in that, The pull-down handle is fitted with an anti-slip soft sleeve, the pressure rod passes through the limiting cylinder, the pressure rod slides with the limiting cylinder, and the connecting piece has an L-shaped cross-section.

7. The high-precision airtightness testing device according to claim 5, characterized in that, The side wall of the upright plate is bolted with a slide rail, the bottom of the slide rail is fitted with a limit block, a slider is slidably fitted on the outside of the slide rail, the side wall of the slider is bolted with an mounting block, the bottom of the mounting block is bolted with an mounting plate, the surface of the mounting plate is evenly distributed with multiple sets of mounting holes, and the bottom of the mounting plate is detachably fitted with two sets of pressure heads.

8. The high-precision airtightness testing device according to claim 7, characterized in that, The mounting block has a U-shaped cross-section, and the bottom of the pressure head is fitted with a product-shaped sealing ring. The pressure head is configured to correspond with the carrier.

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