An air tightness detection device

Abstract

The utility model relates to airtightness detection technical field especially is a kind of airtightness detection device, including base, gas supply equipment, fixture and hold-down mechanism being uniformly arranged in base, fixture is equipped with communicating hole, air inlet and air outlet, communicating hole is used to communicate product, air inlet, air outlet are all communicated with gas supply equipment, hold-down mechanism is used to hold down product to fixture, the fixture is made of aluminium alloy, hold-down mechanism includes quick pressure head and hold-down piece, quick pressure head is installed in base, hold-down piece is installed in the movable end of quick pressure head and is located just above fixture.The utility model controls hold-down piece to go up and down by quick pressure head, and the fixture that hold-down piece holds down product is tightly contacted, since the operating mode of quick pressure head is very simple, and stable lock can be carried out after switching state, so the tight contact between product and fixture can be quickly realized, which is beneficial to improve efficiency and improve stability.

Description

Technical Field

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

[0002] Current air tightness testing devices generally involve manual loading and unloading. This involves placing the product in a fixture and fixing it in place, then inflating the fixture with gas. The gas flows through the fixture and then out of the fixture. The pressure difference before and after the gas is supplied is observed to determine whether the product's air tightness meets the requirements.

[0003] However, in existing technologies, the structures of the products held in the fixtures are mostly quite complex, which is not conducive to control and undoubtedly affects efficiency. Summary of the Invention

[0004] This invention addresses the problems of existing technologies by providing an airtightness testing device that facilitates the fixed connection between the product and the fixture, ensuring a tight fit between them to prevent air leakage.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides an airtightness testing device, including a base, an air supply device, a fixture all mounted on the base, and a holding mechanism. The fixture has a connecting hole, an air inlet, and an air outlet. The connecting hole is used to connect to the product. The air inlet and air outlet are both connected to the air supply device. The holding mechanism is used to hold the product onto the fixture. The fixture is made of aluminum alloy. The holding mechanism includes a quick-pressing head and a holding component. The quick-pressing head is mounted on the base, and the holding component is mounted on the movable end of the quick-pressing head and located directly above the fixture.

[0007] Furthermore, the air inlet and air outlet are each detachably equipped with a connector, and a sealing structure is provided inside the connecting hole.

[0008] Furthermore, the base is provided with a mounting rail, and the bottom of the fixture is provided with a slider, which is slidably mounted on the mounting rail.

[0009] Furthermore, the mounting rail is provided with multiple positioning holes, and the bottom of the fixture is provided with multiple fixing holes that pass through the slider. The fixing holes are connected to any of the positioning holes and then fixed by screws.

[0010] Furthermore, the pressing member is detachably connected to the quick-pressing head, and a pressing part is provided at the bottom of the pressing member, the width of which is greater than the width of the pressing member;

[0011] The pressing component and the pressing part are integrally formed.

[0012] Furthermore, the base is provided with a vertical plate, and the quick press head can be detachably installed on the vertical plate.

[0013] Furthermore, the connector is screwed to the air inlet / outlet, and a rubber sealing ring is provided inside the connector.

[0014] Furthermore, the gas supply device includes an air pump, an air storage unit, a first air pressure detection unit, and a second air pressure detection unit. The output end of the air pump is connected to the air inlet. The first air pressure detection unit is used to detect the air pressure value at the air inlet. The input end of the air pump is connected to the air storage unit. The air storage unit is connected to the air outlet. The second air pressure detection unit is used to detect the air pressure value at the air outlet.

[0015] The beneficial effects of this utility model are as follows: This utility model controls the lifting and lowering of the holding component through a rapid pressing head, so that the product is tightly pressed against the fixture by the holding component. Since the operation of the rapid pressing head is very simple and can be stably locked after switching states, it can quickly achieve tight contact between the product and the fixture, which is conducive to improving efficiency and stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the base, fixture, and pressing mechanism of this utility model.

[0018] Figure 3 This is a schematic diagram of the mounting rail and fixture of this utility model.

[0019] Reference numerals: 1—base, 2—air supply equipment, 3—fixture, 4—pressing mechanism, 5—screw, 11—mounting rail, 12—positioning hole, 13—vertical plate, 21—air pump, 22—air storage component, 31—connecting hole, 32—air inlet, 33—air outlet, 34—connector, 35—slider, 36—fixing hole, 37—sealing collar, 41—quick press head, 42—pressing component, 43—pressing part. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0021] like Figures 1 to 3As shown, the present invention provides an airtightness testing device, including a base 1, an air supply device 2, a fixture 3 all mounted on the base 1, and a pressing mechanism 4. The fixture 3 is provided with a connecting hole 31, an air inlet 32, and an air outlet 33. The connecting hole 31 is used to connect the product, and the air inlet 32 ​​and the air outlet 33 are both connected to the air supply device 2. The pressing mechanism 4 is used to press the product onto the fixture 3. The fixture 3 is made of aluminum alloy. The pressing mechanism 4 includes a quick pressing head 41 and a pressing member 42. The quick pressing head 41 is mounted on the base 1, and the pressing member 42 is mounted on the movable end of the quick pressing head 41 and located directly above the fixture 3.

[0022] Specifically, the air supply device 2 is a conventional device, which remains connected to the air inlet 32 ​​and the air outlet 33. The quick-pressing head 41 described in this invention is a quick-clamping device with the end modified to a threaded or other conventional fixing structure. During operation, the worker places the product on the fixture 3, aligning and connecting the product's holes with the connecting holes 31 of the fixture 3. The worker then operates the quick-pressing head 41 to press the product firmly onto the fixture 3, ensuring tight contact between the two. Subsequently, the air supply device 2 operates, filling the fixture 3 with gas. The gas passes through the air inlet 32, the fixture 3, the product, and then exits through the air outlet 33 back to the air supply device 2. By measuring the relevant parameters of the inlet and outlet, the air tightness of the product can be determined.

[0023] Because the quick-pressing head 41 is easy to operate and has a stable pressing effect, this utility model can stably lock the product after switching states, thus quickly achieving a tight contact between the product and the fixture 3, which is beneficial to improving efficiency and stability.

[0024] In this embodiment, the air inlet 32 ​​and air outlet 33 are each detachably equipped with a connector 34, and a sealing structure is provided inside the connecting hole 31. The connector 34 ensures a quick, stable, and long-term connection with the air supply device 2, preventing air leakage.

[0025] In this embodiment, the base 1 is provided with a mounting rail 11, and the bottom of the fixture 3 is provided with a slider 35, which is slidably disposed on the mounting rail 11.

[0026] In actual use, the mounting rail 11 is provided with multiple positioning holes 12, and the bottom of the fixture 3 is provided with multiple fixing holes 36 that pass through the slider 35. After the fixing hole 36 is connected to any positioning hole 12, it is fixed by screws 5.

[0027] The fixture 3 can move back and forth along the mounting rail 11 to adjust the relative position between the fixture 3 and the holding mechanism 4, so that this invention can accommodate products of different specifications. After adjusting the position of the fixture 3, the fixture 3 can be positioned by simply locking the fixing hole 36 and the positioning hole 12 with screws.

[0028] In this embodiment, the pressing member 42 is detachably connected to the quick pressing head 41, and the bottom of the pressing member 42 is provided with a pressing part 43, the width of the pressing part 43 being greater than the width of the pressing member 42.

[0029] The pressing member 42 and the pressing part 43 are integrally formed.

[0030] The width of the holding part 43 is greater than the width of the holding member 42, which helps to increase the contact area between the holding part and the product, making the holding more stable.

[0031] In this embodiment, the base 1 is provided with a vertical plate 13, and the quick press head 41 is detachably installed on the vertical plate 13. That is, the operator can replace the appropriate quick press head 41 with the vertical plate 13 as needed, so that this utility model can be adapted and adjusted according to different product specifications, thus improving flexibility.

[0032] Specifically, the connector 34 is screwed to the air inlet 32 / air outlet 33, and a rubber sealing ring 37 is provided inside the connector 34, so that the connection between the connector 34 and the air outlet 33 / air inlet 32 ​​is tighter, and air leakage is avoided as much as possible.

[0033] In this embodiment, the gas supply device 2 includes an air pump 21, an air storage device 22, a first air pressure detection device, and a second air pressure detection device. The output end of the air pump is connected to the air inlet 32. The first air pressure detection device is used to detect the air pressure value at the air inlet 32. The input end of the air pump is connected to the air storage device 22. The air storage device 22 is connected to the air outlet 33. The second air pressure detection device is used to detect the air pressure value at the air outlet 33.

[0034] 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 way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. An air tightness detection device, comprising a base, a gas supply device, a jig and a pressing mechanism, all arranged on the base, the jig being provided with a communication hole for communicating with a product, a gas inlet hole and a gas outlet hole, both of which are in communication with the gas supply device, and the pressing mechanism is used for pressing the product to the jig, characterized in that: The fixture is made of aluminum alloy, and the pressing mechanism includes a quick pressing head and a pressing member. The quick pressing head is mounted on the base, and the pressing member is mounted on the movable end of the quick pressing head and located directly above the fixture.

2. The air tightness testing apparatus of claim 1, wherein: The air inlet and air outlet are each detachably equipped with a connector, and a sealing structure is provided in the connecting hole.

3. The air tightness testing apparatus of claim 1, wherein: The base is provided with a mounting rail, and the bottom of the fixture is provided with a slider that slides on the mounting rail.

4. The air tightness testing apparatus of claim 3, wherein: The mounting rail is provided with multiple positioning holes, and the bottom of the fixture is provided with multiple fixing holes that pass through the slider. The fixing holes are connected to any of the positioning holes and then fixed by screws.

5. The air tightness testing apparatus of claim 1, wherein: The pressing member is detachably connected to the quick pressing head, and a pressing part is provided at the bottom of the pressing member, the width of which is greater than the width of the pressing member; The pressing component and the pressing part are integrally formed.

6. The air tightness testing apparatus of claim 1, wherein: The base is equipped with a vertical plate, and the quick press head can be detachably installed on the vertical plate.

7. The air tightness testing apparatus of claim 2, wherein: The connector is screwed to the air inlet / outlet, and a rubber sealing ring is provided inside the connector.

8. The air tightness testing apparatus of claim 1, wherein: The gas supply device includes an air pump, an air storage unit, a first air pressure detection unit, and a second air pressure detection unit. The output end of the air pump is connected to the air inlet. The first air pressure detection unit is used to detect the air pressure value at the air inlet. The input end of the air pump is connected to the air storage unit. The air storage unit is connected to the air outlet. The second air pressure detection unit is used to detect the air pressure value at the air outlet.

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