Product air tightness detection device

Abstract

The utility model relates to the technical field of air tightness detection, in particular to a product air tightness detection device which comprises a workbench, and the workbench is provided with a fixing mechanism used for fixing products, an air supply device used for inflating the interiors of the products and an air pressure detection device used for detecting air supply pressure changes. The fixing mechanism is provided with a plurality of matching grooves used for being in interference fit with the products, an air supply pipeline is connected into any matching groove of the fixing mechanism, an air inlet of the air supply pipeline is connected with the air supply device, and the air supply device inflates air into each product. After air supply is stopped, the air pressure detection device is used for detecting the air pressure change in the product in real time, so that whether the air tightness of the product is qualified or not can be accurately judged, and the detection accuracy is improved; and a plurality of matching grooves are formed in the fixing mechanism, so that a plurality of products can be fixed and detected at the same time, the repeated labor of detecting a single product is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air tightness detection, and in particular to a product air tightness detection device. Background Art

[0002] At present, with the increasing complexity of products and strict requirements for safety assurance, air tightness detection technology plays an increasingly important role in production and life. Therefore, air tightness detection technology has become an important process to ensure product quality and production safety.

[0003] During the testing process, the product to be tested is placed in a sealed cavity and connected to the air tightness tester. A certain amount of gas is filled into the interior of the product to be tested, and the air tightness tester detects the changes in the gas pressure inside the product to evaluate the air tightness of the product.

[0004] However, since most existing detection devices can only perform air tightness testing on a single product, it is very labor-intensive and time-consuming to test a large number of products, and there is room for improvement. Utility Model Content

[0005] In order to perform air tightness testing on multiple products at the same time, the present application provides a product air tightness testing device.

[0006] This application provides a product air tightness detection device, which adopts the following technical solution:

[0007] A product air tightness detection device includes a workbench, on which are provided a fixing mechanism for fixing products, an air supply device for inflating air into each product, and an air pressure detection device for detecting changes in the air supply pressure. The fixing mechanism is provided with a matching groove for forming an interference fit with the product, and there are multiple matching grooves. An air supply pipe is connected to any matching groove of the fixing mechanism, and the air inlet of the air supply pipe is connected to the air supply device.

[0008] By adopting the above technical solution, air is inflated into each product through the air supply device, and after the air supply is stopped, the air pressure detection device is used to detect the air pressure changes inside the product in real time, so that it is possible to accurately judge whether the air tightness of the product is qualified, thereby improving the accuracy of the detection; and by utilizing the setting of multiple matching grooves on the fixing mechanism, multiple products can be fixed and detected at the same time, reducing the repetitive work of detecting a single product and improving work efficiency.

[0009] Preferably, the fixing mechanism includes a fixing seat and a fixing plate, the fixing seat is provided with a fixing groove, the matching grooves are arranged at intervals on the fixing plate, a fixing block is provided on the side of the fixing plate away from the matching groove, the fixing block forms an embedded fit with the fixing groove, a vent is provided on the fixing block, the vent is communicated with the matching groove, and the fixing groove is connected to the air supply pipe.

[0010] By adopting the above technical solution, the fixing block and the fixing groove are embedded in each other, so that the connection between the fixing seat and the fixing plate is firm and reliable. This detachable setting makes it easy for the staff to first fix the product on the fixing plate, and then install the fixing plate with the fixed product on the fixing seat, thereby improving the installation efficiency of the product. At the same time, the setting of the vent hole allows the gas delivered to the fixing groove by the air supply device to smoothly enter the product through the vent hole.

[0011] Preferably, a clamping piece for clamping the fixing seat and the fixing plate is provided on the workbench, and the clamping piece forms an abutting fit with the upper surface of the fixing plate.

[0012] By adopting the above technical solution and utilizing the setting of the clamping parts, the connection stability between the fixing seat and the fixing plate is further strengthened, thereby enhancing the air tightness between the fixing seat and the fixing plate and reducing the risk of gas input into the fixing seat by the gas supply device escaping from the gap between the fixing seat and the fixing plate.

[0013] Preferably, a protection component for protecting the fixing mechanism is provided on the workbench, a protection space is formed between the workbench and the protection component, and the fixing mechanism is arranged in the protection space.

[0014] By adopting the above technical solution and utilizing the provision of the protection component, the contact between the fixing mechanism and the outside world is reduced, thereby lowering the risk of damage to the fixing mechanism due to collision.

[0015] Preferably, the protection assembly includes a fixing frame and a flip cover, the fixing frame is welded on the workbench, and the fixing frame and the flip cover are rotatably connected.

[0016] By adopting the above technical solution, the fixing frame and the flip cover are rotatably connected, thereby making it convenient for staff to open or close the flip cover.

[0017] Preferably, the flip cover is provided with a visual window for the staff to observe the product testing status.

[0018] By adopting the above technical solution and utilizing the setting of the visualization window, the staff can observe the inspection status of the product at any time without having to frequently open the flip cover.

[0019] Preferably, the air pressure detection device includes a pressure gauge for detecting the air pressure inside the product, and the pressure gauge is arranged on the air supply pipeline.

[0020] By adopting the above technical solution and utilizing the setting of the pressure gauge, the staff observes the air pressure value on the pressure gauge after stopping the gas supply. If the air pressure value of the pressure gauge decreases after a period of time, it means that the product corresponding to the pressure gauge is leaking. If the air pressure value of the pressure gauge does not change, it means that the quality of the product corresponding to the pressure gauge is qualified.

[0021] Preferably, any of the gas supply pipelines is provided with a vent valve for controlling gas delivery.

[0022] By adopting the above technical solution and utilizing the setting of the ventilation valve, the staff can control the delivery of gas according to needs, which helps to improve the detection efficiency.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The air supply device is used to inflate the interior of each product, and the air pressure detection device is used to monitor the air pressure changes inside the product in real time, so that the air tightness of the product can be accurately judged, which improves the accuracy of the detection. In addition, the multiple matching grooves on the fixing mechanism can be set up to enable multiple products to be fixed and detected at the same time, reducing the duplication of single product detection and improving work efficiency.

[0025] 2. The fixing block and the fixing groove form an embedded fit, making the connection between the fixing base and the fixing plate stable and reliable. This detachable setting makes it easy for workers to first fix the product on the fixing plate, and then install the fixing plate with the fixed product on the fixing base, improving product installation efficiency. At the same time, the provision of the vent hole allows the gas delivered to the fixing groove by the air supply device to smoothly enter the product through the vent hole;

[0026] 3. The provision of the clamping piece further strengthens the connection stability between the fixing seat and the fixing plate, thereby enhancing the airtightness between the fixing seat and the fixing plate and reducing the risk of the gas input into the fixing seat by the gas supply device escaping from the gap between the fixing seat and the fixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an axonometric diagram mainly showing the overall structure in the embodiment of the present application;

[0028] Figure 2 This is a diagram showing the state of the protection component and the fixing mechanism when the cover is opened in the embodiment of the present application;

[0029] Figure 3This is a partial exploded view mainly showing the connection relationship between the fixing seat and the fixing plate in the embodiment of the present application;

[0030] Figure 4 It is a top view mainly showing the internal structure of the fixing groove and the matching groove in the embodiment of the present application.

[0031] Reference numerals: 1, workbench; 11, tabletop; 111, connecting block; 1111, first connecting groove; 1112, second connecting groove; 112, connecting hole; 12, connecting frame; 121, connecting plate; 13, clamping member; 131, quick clamp; 14, protective assembly; 141, fixing frame; 1411, avoidance hole; 142, flip cover; 1421, rotating rod; 1422, handle; 1423, visual window; 143 , side panel; 15, protective space; 2, fixing mechanism; 21, fixing seat; 211, fixing groove; 212, matching hole; 22, fixing plate; 221, matching groove; 23, fixing block; 231, vent hole; 3, air supply device; 31, air pump; 32, air supply pipeline; 321, first connecting pipe; 322, second connecting pipe; 3221, vent valve; 4, air pressure detection device; 41, air tightness detector; 42, pressure gauge. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 -Attached Figure 4 This application is described in further detail.

[0033] The embodiment of the present application discloses a product air tightness detection device.

[0034] Reference Figure 1 and Figure 2 A product air tightness detection device includes a workbench 1, on which is provided a fixing mechanism 2 for fixing the product and an air supply device 3 for inflating air into each product. The workbench 1 includes a tabletop 11 and a connecting frame 12. The tabletop 11 is welded to the connecting frame 12. A connecting plate 121 is welded to the connecting frame 12. The connecting plate 121 is located below the tabletop 11. The fixing mechanism 2 is arranged on the tabletop 11, and the air supply device 3 is arranged on the connecting plate 121. In the embodiment of the present application, the air supply device 3 is configured as an air pump 31, and the air pressure of the gas filled into each product by the air pump 31 will not affect the fixation of the product by the fixing mechanism 2.

[0035] Reference Figure 1 and Figure 2The fixing mechanism 2 includes a fixing seat 21 and a fixing plate 22. The fixing seat 21 is threadedly connected to the table 11 by bolts. Fixing grooves 211 are arranged at intervals on the fixing seat 21. There are multiple fixing grooves 211. In this embodiment, there are six fixing grooves 211. By utilizing the arrangement of multiple matching grooves 221 on the fixing mechanism 2, multiple products can be fixed and tested at the same time, reducing the repetitive work of testing a single product and improving work efficiency.

[0036] Reference Figure 3 The fixing plate 22 is provided with fixing blocks 23 at positions and numbers corresponding to the fixing grooves 211. Any fixing block 23 is integrally formed with the fixing plate 22, and any fixing block 23 is embedded in the corresponding fixing groove 211, so that the connection between the fixing seat 21 and the fixing plate 22 is firm and reliable. At the same time, it is convenient for the staff to first fix the product on the fixing plate 22, and then install the fixing plate 22 with the fixed product on the fixing seat 21, thereby improving the installation efficiency of the product.

[0037] Reference Figure 3 On one side of the fixing plate 22 away from the fixing block 23, there are intervals of mating grooves 221 for forming an interference fit with the product. There are six mating grooves 221 corresponding to the position and number of the fixing block 23, so that the staff can choose the number of products to be tested according to their needs; the fixing seat 21 is provided with mating holes 212 corresponding to the position and number of the fixing slots 211. The mating holes 212 are arranged perpendicular to the embedding direction of the fixing block 23 and the fixing slot 211, and any mating hole 212 is connected to the corresponding fixing slot 211.

[0038] Reference Figure 1 and Figure 4 A connecting block 111 and a connecting hole 112 are provided on the table 11. The connecting block 111 is threadedly connected to the table 11 by bolts. A first connecting groove 1111 and a second connecting groove 1112 are provided on the connecting block 111. The second connecting grooves 1112 are provided in six positions and quantities corresponding to the matching holes 212. Any second connecting groove 1112 is provided perpendicular to the first connecting groove 1111, and any second connecting groove 1112 is connected to the first connecting groove 1111.

[0039] Reference Figure 1 and Figure 4The air pump 31 is connected to an air supply pipe 32, and the air supply pipe 32 includes a first connecting pipe 321 and a second connecting pipe 322. One end of the first connecting pipe 321 is connected to the air outlet of the air pump 31, and the other end of the first connecting pipe 321 is connected to the opening of the first connecting groove 1111 through the connecting hole 112. There are six second connecting pipes 322 corresponding to the position and number of the second connecting groove 1112. One end of any second connecting pipe 322 is connected to the opening of the corresponding second connecting groove 1112, and the other end of the second connecting pipe 322 is connected to the opening of the matching hole 212 away from the fixing groove 211.

[0040] Reference Figure 4 A vent valve 3221 for controlling gas delivery is provided at one end of any second connecting pipe 322 close to the connecting block 111, so that the staff can control the gas delivery as needed, which helps to reduce gas waste and improve detection efficiency.

[0041] Reference Figure 3 and Figure 4 A vent hole 231 is provided on any fixed block 23 , and any vent hole 231 is connected to the corresponding matching groove 221 , so that the gas delivered to the fixed groove 211 by the air pump 31 can smoothly enter the product through the vent hole 231 .

[0042] Reference Figure 1 and Figure 2 The table 11 is threadedly connected with a clamping piece 13 for clamping the fixing seat 21 and the fixing plate 22 by a bolt, and a plurality of clamping pieces 13 are arranged at intervals. In this embodiment, there are three clamping pieces 13 and any one of the clamping pieces 13 is set as a quick clamp 131. The quick clamp 131 forms an abutment fit with the upper surface of the fixing plate 22, thereby further strengthening the connection stability between the fixing seat 21 and the fixing plate 22, thereby enhancing the airtightness between the fixing seat 21 and the fixing plate 22, and reducing the risk of gas input into the fixing seat 21 by the gas supply device 3 escaping from the gap between the fixing seat 21 and the fixing plate 22.

[0043] Reference Figure 1 and Figure 4The workbench 1 is provided with an air pressure detection device 4 for detecting changes in the air supply pressure. The air pressure detection device 4 includes an air tightness detector 41 for detecting the air pressure inside the connecting block 111 and a pressure gauge 42 for detecting the air pressure inside the product. There are six pressure gauges 42 corresponding to the positions and quantities of the second connecting pipes 322. Any pressure gauge 42 is set on the second connecting pipe 322 corresponding to the air supply pipe 32. The air tightness detector 41 is installed on the workbench 1. During actual operation, the air pump 31 inflates the first connecting groove 1111 of the connecting block 111 through the first connecting pipe 321. The air tightness detector 41 can detect the air pressure changes in the first connecting groove 1111, so that the staff can accurately control the air supply pressure of the air pump 31 by observing the data on the air tightness detector 41.

[0044] Reference Figure 1 and Figure 4 , a vent valve 3221 is installed on any second connecting pipe 322, and any pressure gauge 42 is installed on the vent valve 3221. When the air pump 31 supplies air to the inside of the product, the staff first controls the air pressure of the gas supplied by the air pump 31 through the air tightness detector 41 to reach a preset value, and then closes the vent valve 3221 on the second connecting pipe 322. Since the second connecting pipe 322 is connected to the inside of the product, the air pressure inside the product can be judged by observing the air pressure value of the pressure gauge 4. If the air pressure value of the pressure gauge 42 decreases after a period of time, it means that the product corresponding to the detection of the pressure gauge 42 is leaking. If the air pressure value of the pressure gauge 42 does not change, it means that the quality of the product corresponding to the detection of the pressure gauge 42 is qualified.

[0045] Reference Figure 1 and Figure 2 A protective component 14 for protecting the fixing mechanism 2 is provided on the table 11, and a protective space 15 is formed between the workbench 1 and the protective component 14. The fixing seat 21 and the fixing plate 22 are both arranged in the protective space 15, thereby reducing the contact between the fixing seat 21 and the fixing plate 22 and the outside world, and reducing the risk of damage to the fixing mechanism 2 due to collision.

[0046] Reference Figure 1 and Figure 2 The protection component 14 includes a fixing frame 141 and a flip cover 142. The fixing frame 141 is welded to the table 11 and is arranged between the connecting block 111 and the fixing seat 21. The fixing frame 141 is provided with an avoidance hole 1411 for avoiding the second connecting pipe 322, and two avoidance holes 1411 are arranged at intervals; the flip cover 142 is rotatably connected to a rotating rod 1421 on one side close to the connecting block 111, and both ends of the rotating rod 1421 are rotatably connected to the fixing frame 141, so that the staff can easily open or close the flip cover 142.

[0047] Reference Figure 1 and Figure 2 The protection component 14 also includes a side plate 143, which is welded to the table 11. The side plate 143 is threadedly connected to the flip cover 142 by bolts. When the flip cover 142 is in a closed state, the side plate 143 and the flip cover 142 are threadedly connected by bolts, thereby further fixing the position of the flip cover 142 and enhancing the stability of the flip cover 142 when it is in a closed state.

[0048] Reference Figure 2 The flip cover 142 is provided with a handle 1422 for the staff to open or close the flip cover 142, thereby improving the convenience of the staff in operating the flip cover 142; the flip cover 142 is provided with a visual window 1423 for the staff to observe the product inspection status, so that the staff can observe the product inspection status at any time without having to frequently open the flip cover 142.

[0049] The implementation principle of the embodiment of the present application is: during actual operation, the staff first installs the product to be tested into the matching groove 221, closes the flip cover 142, opens the required vent valve 3221, and controls the air pump 31 to inflate the interior of the product to be tested, and then controls the air pressure of the supplied gas to reach the preset value by observing the air tightness tester 41. After the air pressure reaches the preset value, the vent valve 3221 is closed, and finally the air pressure inside the product detected by the pressure gauge 42 is observed. If the air pressure value of the pressure gauge 42 decreases after a period of time, it means that the product corresponding to the test of the pressure gauge 42 is leaking. If the air pressure value of the pressure gauge 42 does not change, it means that the quality of the product corresponding to the test of the pressure gauge 42 is qualified.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A product air tightness detection device, characterized in that: The invention comprises a workbench (1), wherein the workbench (1) is provided with a fixing mechanism (2) for fixing products, an air supply device (3) for inflating the interior of each product, and an air pressure detection device (4) for detecting changes in the air supply pressure; the fixing mechanism (2) is provided with a matching groove (221) for forming an interference fit with the product, and the matching grooves (221) are provided in plurality; an air supply pipe (32) is connected to any matching groove (221) of the fixing mechanism (2); and the air inlet of any air supply pipe (32) is connected to the air supply device (3).

2. A product air tightness detection device according to claim 1, characterized in that: The fixing mechanism (2) comprises a fixing seat (21) and a fixing plate (22); a fixing groove (211) is provided on the fixing seat (21); the matching grooves (221) are arranged at intervals on the fixing plate (22); a fixing block (23) is provided on a side of the fixing plate (22) away from the matching grooves (221); the fixing block (23) and the fixing groove (211) are embedded and matched; a vent hole (231) is provided on the fixing block (23); the vent hole (231) is communicated with the matching groove (221); and the fixing groove (211) is connected to the air supply pipe (32).

3. A product air tightness detection device according to claim 2, characterized in that: The workbench (1) is provided with a clamping member (13) for clamping the fixing seat (21) and the fixing plate (22), and the clamping member (13) forms an abutting fit with the upper surface of the fixing plate (22).

4. The product air tightness detection device according to claim 1, characterized in that: A protection component (14) for protecting the fixing mechanism (2) is provided on the workbench (1); a protection space (15) is formed between the workbench (1) and the protection component (14); and the fixing mechanism (2) is provided in the protection space (15).

5. The product air tightness detection device according to claim 4, characterized in that: The protection assembly (14) comprises a fixing frame (141) and a flip cover (142); the fixing frame (141) is welded on the workbench (1); and the fixing frame (141) and the flip cover (142) are rotatably connected.

6. The product air tightness detection device according to claim 5, characterized in that: The flip cover (142) is provided with a visual window (1423) for the staff to observe the product testing status.

7. The product air tightness detection device according to claim 1, characterized in that: The air pressure detection device (4) comprises an air pressure gauge (42) for detecting the air pressure inside the product, and the air pressure gauge (42) is arranged on the air supply pipeline (32).

8. The product air tightness detection device according to claim 1, characterized in that: Any of the gas supply pipes (32) is provided with a vent valve (3221) for controlling gas delivery.

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