Modular air tightness detection apparatus

By using a modular airtightness testing device with a disassembly and adjustment mechanism, the problem of low efficiency when replacing clamps in traditional equipment is solved, enabling rapid adaptation to testing different pipe diameters and improving testing efficiency and accuracy.

CN224398894UActive Publication Date: 2026-06-23WUHAN JUNHE AUTO PARTS CO LTD
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Patent Information

Application Number
CN202521964947.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2026-06-23
Estimated Expiration
2035-09-12

AI Technical Summary

Technical Problem

Traditional testing equipment requires changing different clamps when testing pipes of different diameters, which reduces testing efficiency and makes it difficult to meet the needs of high-efficiency production.

Method used

The modular airtightness testing equipment uses a disassembly mechanism to quickly clamp and fix the test piece, and utilizes a spring and elliptical wheel to achieve stable tension adjustment. Combining the fixing components and adjustment mechanism, it can adapt to different specifications of testing requirements.

Benefits of technology

It enables quick clamp replacement, improves testing efficiency and equipment adaptability, enhances testing accuracy and flexibility, adapts to workpieces of various shapes, and extends the service life of the equipment.

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Abstract

The application relates to a modular air tightness detection device and relates to the technical field of automatic equipment, which comprises a sliding base and a box body, a mounting frame is slidably connected in the sliding base, a dismounting mechanism is arranged in the mounting frame, the dismounting mechanism comprises two round rods, the two round rods are fixedly connected to the inside of the mounting frame, clamping plates are slidably connected to the outside of the round rods, the clamping plates are slidably connected to the inside of the mounting frame, springs are arranged on the outside of the round rods, and a cylindrical block is slidably connected to the inside of the mounting frame. In the utility model, the clamping plates are driven to slide along the round rods by rotating the elliptical wheel, the clamping plates are reset to complete clamping by rotating the elliptical wheel after the pipes are put in, the pipes are quickly mounted and dismounted, the spring elasticity guarantees the clamping stability, the operation is simple, and the efficiency of replacing the clamps of the device is improved.
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Description

Technical Field

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

[0002] In today's rapidly developing manufacturing industry, the requirements for product quality and safety are becoming increasingly stringent. Air tightness, as a key indicator for evaluating the performance of many industrial products, directly impacts their market competitiveness and reliability through its testing accuracy and efficiency. From automotive parts and electronics to medical devices and aerospace, the air tightness requirements for various sealing components and cavity structures are constantly increasing, making traditional testing methods insufficient to meet the diverse, high-precision, and high-efficiency production demands.

[0003] A search revealed Chinese Patent Publication No. CN216349401U, which discloses a pipeline airtightness testing device. The device includes a water tank containing a mounting frame. The mounting frame is equipped with an air-blowing component for blowing air into one end of a pipe, a sealing component for sealing the other end of the pipe, and a clamping component for mounting both ends of the pipe onto the mounting frame. This application effectively increases the efficiency of airtightness testing for operators.

[0004] The aforementioned patent specification mentions that "during use, the operator places the connector at one end of the air tube into the first and second clamping slots on a clamping block, and places the connector at the other end of the air tube into the first and second clamping slots on another clamping block; then, the first drive cylinder drives the air nozzle to move along the direction close to the air tube connector, so that the air nozzle connects with the connector at one end of the air tube; the second drive cylinder drives the sealing block to move along the direction close to the air tube connector, so that the sealing block seals the connector at the other end of the air tube." However, when testing pipes of different diameters, different clamps need to be replaced, and some devices are difficult to replace clamps quickly, reducing the equipment's testing efficiency. Therefore, a modular airtightness testing device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a modular airtightness testing device, which aims to improve the problem of difficulty in quickly replacing clamps in some devices.

[0006] The modular airtightness testing device provided in this application adopts the following technical solution: a modular airtightness testing device includes a slide and a housing, a mounting frame is slidably connected inside the slide, a disassembly mechanism is provided inside the mounting frame, and an adjustment mechanism is provided on the top of the slide;

[0007] The disassembly mechanism includes two round rods, both of which are fixedly connected to the interior of the mounting frame. Each round rod is slidably connected to a clamping plate, which is also slidably connected to the interior of the mounting frame. A spring is sleeved on the outside of each round rod. A cylindrical block is slidably connected to the interior of the mounting frame, with one end of the cylindrical block slidably connected to the inner side of the clamping plate. A U-shaped plate is fixedly connected to the top of the mounting frame, and an elliptical wheel is rotatably connected to the interior of the U-shaped plate. The outer side of the elliptical wheel contacts the outer side of the clamping plate. A fixing component is fixedly connected to the other end of the cylindrical block.

[0008] Through the above technical solution: the equipment can quickly clamp and fix the test piece through the disassembly mechanism, and the spring and elliptical wheel work together to achieve stable tension adjustment. The fixing components enhance adaptability, and the adjustment mechanism facilitates the adjustment of the slide position, thereby improving the testing efficiency and the convenience of module replacement.

[0009] Preferably, the adjusting mechanism includes a connecting seat, the bottom of which is fixedly connected to the top of the slide, an L-shaped insert plate is slidably connected inside the connecting seat, the outside of which is slidably connected to the inside of the slide, the bottom of which is slidably connected to the inside of the mounting bracket, and a guide assembly is fixedly connected inside the slide.

[0010] Through the above technical solution: the adjustment mechanism uses an L-shaped insert plate and a connecting seat to achieve rapid positioning of the mounting bracket, the guide component ensures smooth sliding, improves the adjustment accuracy and ease of operation of the equipment, adapts to different specification testing requirements, and enhances the flexibility of use.

[0011] Preferably, the fixing component includes a clamp, the clamp being disposed on the outside of the cylindrical block, and a rubber ring being fixedly connected to the outside of the cylindrical block.

[0012] The above technical solutions enhance the clamping stability of the test piece by using clamps in the fixing components, buffer the contact pressure of the rubber ring to avoid damaging the workpiece, improve the sealing effect to ensure the accuracy of the test, adapt to workpieces of various shapes, and enhance the versatility and practicality of the equipment.

[0013] Preferably, the guide assembly includes a guide plate, the outside of which is fixedly connected to the inside of the slide, and the inside of the mounting bracket is slidably connected to the outside of the guide plate.

[0014] Through the above technical solution, the guide component restricts the sliding trajectory of the mounting frame through the guide plate, ensuring smooth movement without deviation, improving adjustment accuracy and operation smoothness, reducing component wear and extending equipment life, and enhancing operational stability and detection reliability.

[0015] Preferably, one outer end of the spring is fixedly connected to the inside of the mounting bracket, and the other outer end of the spring is fixedly connected to the outside of the clamping plate.

[0016] The above technical solution involves fixing the two ends of the spring to the mounting bracket and the clamping plate respectively, providing a continuous elastic force, assisting the clamping plate in resetting and maintaining the clamping force, buffering external impacts to prevent loosening, ensuring the stability of the test piece, improving sealing performance and ease of operation, and enhancing equipment stability.

[0017] Preferably, a guide rod is fixedly connected to the inner side of the housing, and the slide block is slidably connected to the outside of the guide rod.

[0018] Through the above technical solution: the guide rod provides a stable sliding track for the slide block, ensuring its precise and wobbly movement, improving the stability of equipment operation, reducing component friction wear, extending service life, facilitating adjustment of the detection position, adapting to various working conditions, and enhancing operational flexibility and detection reliability.

[0019] Preferably, an L-shaped support plate is fixedly connected to the top of the housing, and an electric push rod is fixedly connected inside the L-shaped support plate. The drive end of the electric push rod is fixedly connected to the top of the slide.

[0020] The above technical solution provides a stable support for the electric push rod via an L-shaped support plate. The drive end of the push rod moves the slide precisely, enabling automated adjustment, reducing human error, improving detection efficiency and position control accuracy, adapting to different detection needs, and enhancing the automation and practicality of the equipment.

[0021] Preferably, an L-shaped support plate is fixedly connected to the top of the box, a camera is fixedly connected to the bottom of the L-shaped support plate, and a drain pipe is fixedly connected to the outer bottom side of the box.

[0022] The above technical solution allows for the stable installation of cameras on the L-shaped support plate, facilitating real-time monitoring of the testing process. The drainage pipe promptly removes waste liquid, keeping the equipment clean, improving operational convenience, ensuring a tidy testing environment, enhancing testing visibility and maintenance convenience, and optimizing the user experience.

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

[0024] 1. In this utility model, the elliptical wheel is rotated to drive the clamping plate to slide along the round rod, and the spring is compressed to open the clamp. After the pipe is inserted, the elliptical wheel is rotated again to reset the clamping plate and complete the clamping. This enables quick loading and unloading of pipes. The spring force ensures stable clamping. The operation is simple and improves the efficiency of the device for changing clamps.

[0025] 2. In this utility model, by pulling the L-shaped insert plate to release the restriction, pushing the mounting bracket to slide along the guide plate, and then inserting the insert plate to fix it, the spacing of the mounting bracket can be flexibly adjusted to adapt to pipes of different lengths. The operation is simple, the positioning is accurate and stable, and the equipment's versatility and testing adaptability are improved. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a modular airtightness testing device proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the structure of an L-shaped support plate of a modular airtightness testing device proposed in this utility model.

[0028] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0029] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Slide; 2. Mounting bracket; 3. Disassembly mechanism; 31. Round rod; 32. Clamping plate; 33. Spring; 34. Cylindrical block; 35. U-shaped plate; 36. Elliptical wheel; 37. Fixing assembly; 371. Clamp; 372. Rubber ring; 4. Adjustment mechanism; 41. Connecting seat; 42. L-shaped insert plate; 43. Guide assembly; 431. Guide plate; 5. Housing; 6. Guide rod; 7. L-shaped support plate one; 8. Electric push rod; 9. L-shaped support plate two; 10. Camera; 11. Drainage pipe. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0033] Example: A modular airtightness testing device, referring to... Figures 1 to 3 It includes a slide 1 and a housing 5. The slide 1 has a sliding groove inside that is adapted to the sliding of the mounting bracket 2. The housing 5 is the frame of the whole equipment. The mounting bracket 2 is slidably connected inside the slide 1. The mounting bracket 2 is used to install and fix the component 37. The mounting bracket 2 has a disassembly mechanism 3 inside. The top of the slide 1 has an adjustment mechanism 4.

[0034] The disassembly mechanism 3 includes two round rods 31. The round rods 31 serve as guide shafts for the sliding of the clamping plate 32, providing reliable support and motion constraint for the clamping plate 32. Both round rods 31 are externally fixed to the interior of the mounting frame 2, and the clamping plates 32 are slidably connected to the exterior of each round rod 31. Under the elastic force of the spring 33 and the compression of the elliptical wheel 36, the clamping plates 32 reciprocate along the round rods 31, completing the clamping and releasing actions. The exterior of the clamping plates 32 is slidably connected to the interior of the mounting frame 2, and the springs 33 are sleeved on the exterior of the round rods 31. In the pre-compression state, a continuous elastic force is applied to the clamping plate 32 to maintain the pre-tight force on the cylindrical block 34. When the elliptical wheel 36 rotates and squeezes the clamping plate 32, the spring 33 is further compressed and stores elastic potential energy. After the elliptical wheel 36 is released, the spring 33 releases the potential energy and pushes the clamping plate 32 to reset. One end of the spring 33 is fixedly connected to the inside of the mounting bracket 2, and the other end of the spring 33 is fixedly connected to the outside of the clamping plate 32. The cylindrical block 34 is slidably connected inside the mounting bracket 2. The cylindrical block 34 is used to connect the fixing component 37.

[0035] One end of the cylindrical block 34 is slidably connected to the inner side of the clamping plate 32. A U-shaped plate 35 is fixedly connected to the top of the mounting bracket 2. The U-shaped plate 35 provides a stable rotation support structure for the elliptical wheel 36. The elliptical wheel 36 is rotatably connected inside the U-shaped plate 35. When the elliptical wheel 36 rotates, it contacts the outer side of the clamping plate 32. By changing the contour radius, it pushes the clamping plate 32 to slide along the round rod 31, converting the rotation action into the linear clamping action of the clamping plate 32, which enables quick clamping and releasing. The outer side of the elliptical wheel 36 contacts the outer side of the clamping plate 32. A fixing component 37 is fixedly connected to the other end of the cylindrical block 34.

[0036] The fixing component 37 includes a clamp 371, which can fix the pipe to be tested. The clamp 371 is set on the outside of the cylindrical block 34. A rubber ring 372 is fixedly connected to the outside of the cylindrical block 34. The rubber ring 372 plays a sealing role by contacting the pipe.

[0037] Specifically, first rotate the elliptical wheel 36 so that the part with the larger radius of its outline contacts the outside of the clamping plate 32, pushing the clamping plate 32 to slide outward along the round rod 31, while compressing the spring 33. At this time, the cylindrical block 34 moves with the clamping plate 32, causing the clamp 371 to open, and the pipe to be tested is placed into the clamp 371. Then, rotate the elliptical wheel 36 in the opposite direction so that the part with the smaller radius of its outline is opposite to the clamping plate 32, and the spring 33 releases its elastic potential energy, pushing the clamping plate 32 to slide inward and reset.

[0038] Reference Figure 2 and Figure 4The adjusting mechanism 4 includes a connecting seat 41, which provides a linear sliding guide for the L-shaped insert plate 42. By cooperating with the L-shaped insert plate 42, the position of the mounting bracket 2 on the slide block 1 is restricted. The bottom of the connecting seat 41 is fixedly connected to the top of the slide block 1. The L-shaped insert plate 42 is slidably connected inside the connecting seat 41. The L-shaped insert plate 42 is used to restrict the position of the mounting bracket 2. The outside of the L-shaped insert plate 42 is slidably connected to the inside of the slide block 1. The bottom of the L-shaped insert plate 42 is slidably connected to the inside of the mounting bracket 2. The guide assembly 43 is fixedly connected inside the slide block 1.

[0039] The guide assembly 43 includes a guide plate 431, which provides linear constraint for the sliding of the mounting bracket 2 on the slide block 1, ensuring that the mounting bracket 2 remains stable during the sliding process. The guide plate 431 is externally fixedly connected to the inside of the slide block 1, and the inside of the mounting bracket 2 is slidably connected to the outside of the guide plate 431.

[0040] Specifically, first pull the L-shaped insert plate 42 upwards so that its bottom is pulled out from inside the mounting bracket 2, thus releasing the position restriction on the mounting bracket 2. Then push the mounting bracket 2 so that it slides along the guide plate 431 in the slide block 1 until it reaches the desired position. After it is in place, slide the L-shaped insert plate 42 downwards along the connecting seat 41 so that its bottom is reinserted into the mounting bracket 2. The position is fixed by the cooperation between the L-shaped insert plate 42 and the mounting bracket 2, thus completing the position adjustment of the mounting bracket 2.

[0041] Reference Figure 1 and Figure 2 A guide rod 6 is fixedly connected to the inner side of the housing 5. The guide rod 6 provides precise linear guidance for the sliding of the slide 1 along the direction of the housing 5. The slide 1 is slidably connected to the outside of the guide rod 6. An L-shaped support plate 7 is fixedly connected to the top of the housing 5. The L-shaped support plate 7 provides vertical installation support for the electric push rod 8. An electric push rod 8 is fixedly connected to the inside of the L-shaped support plate 7. The electric push rod 8 serves as the power source for the slide 1. The drive end of the electric push rod 8 is fixedly connected to the top of the slide 1. An L-shaped support plate 9 is fixedly connected to the top of the housing 5. The L-shaped support plate 9 provides installation support for the camera 10. The camera 10 is fixedly connected to the bottom of the L-shaped support plate 9. The camera 10 provides visual feedback for the automated and intelligent control of airtightness detection. A drain pipe 11 is fixedly connected to the bottom of the outer side of the housing 5. The drain pipe 11 is used to drain the water inside the housing 5.

[0042] Specifically, the electric push rod 8 is activated, and the electric push rod 8 drives the slide 1 to slide along the guide rod 6 inside the box 5, moving the slide 1 and the components on it to the detection area. During the process, the camera 10 continuously captures images of the relevant area, providing real-time visual information for the automated control of the detection. Water will be discharged from the box 5 through the drain pipe 11, completing the drainage operation.

[0043] The implementation principle of this application embodiment is as follows: When replacing the clamp 371, first operate the elliptical wheel 36 to rotate, and use its contour change to push the clamp 32 to slide along the round rod 31. The clamp 32 releases the cylindrical block 34, and at the same time the spring 33 is compressed, and the matching fixing component 37 slides into the mounting frame 2. Rotate the elliptical wheel 36, and the spring 33 restores its deformation and generates elastic force. The elastic force drives the clamp 32 to reset and fix the cylindrical block 34 again.

[0044] When adjusting the position of the mounting bracket 2, slide the L-shaped insert plate 42 so that the L-shaped insert plate 42 moves along the connecting seat 41 and the slide 1. After the mounting bracket 2 is released from the restriction of the L-shaped insert plate 42, the slide 1 can slide along the guide plate 431 to change the position of the mounting bracket 2 on the slide 1 and adjust the distance between the mounting brackets 2. Then slide the L-shaped insert plate 42 and re-insert it into the mounting bracket 2 to lock the position of the mounting bracket 2 and adapt to pipes of different lengths. Then the electric push rod 8 is started to drive the slide 1 to slide along the guide rod 6 and transport the mounting bracket 2 and the clamped pipe to the detection area. The camera 10 collects images of the clamping and detection process in real time. After detection, the water is discharged from the box 5 through the drain pipe 11.

[0045] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular airtightness testing device, comprising a slide (1) and a housing (5), characterized in that: The slide (1) is slidably connected to a mounting bracket (2), the mounting bracket (2) is provided with a disassembly mechanism (3), and the top of the slide (1) is provided with an adjustment mechanism (4). The disassembly mechanism (3) includes two round rods (31), both of which are fixedly connected to the inside of the mounting frame (2). Each of the round rods (31) is slidably connected to a clamping plate (32), which is slidably connected to the inside of the mounting frame (2). A spring (33) is sleeved on the outside of the round rods (31). A cylindrical block (34) is slidably connected to the inside of the mounting frame (2). One end of the cylindrical block (34) is slidably connected to the inside of the clamping plate (32). A U-shaped plate (35) is fixedly connected to the top of the mounting frame (2). An elliptical wheel (36) is rotatably connected to the inside of the U-shaped plate (35). The outside of the elliptical wheel (36) is in contact with the outside of the clamping plate (32). A fixing component (37) is fixedly connected to the other end of the cylindrical block (34).

2. The modular airtightness testing device according to claim 1, characterized in that: The adjustment mechanism (4) includes a connecting seat (41), the bottom of which is fixedly connected to the top of the slide (1), an L-shaped insert plate (42) is slidably connected inside the connecting seat (41), the outside of which is slidably connected to the inside of the slide (1), the bottom of which is slidably connected to the inside of the mounting bracket (2), and a guide assembly (43) is fixedly connected inside the slide (1).

3. The modular airtightness testing device according to claim 1, characterized in that: The fixing component (37) includes a clamp (371), the clamp (371) is disposed on the outside of the cylindrical block (34), and a rubber ring (372) is fixedly connected to the outside of the cylindrical block (34).

4. The modular airtightness testing device according to claim 2, characterized in that: The guide assembly (43) includes a guide plate (431), the outside of which is fixedly connected to the inside of the slide (1), and the inside of the mounting bracket (2) is slidably connected to the outside of the guide plate (431).

5. The modular airtightness testing device according to claim 1, characterized in that: One end of the spring (33) is fixedly connected to the inside of the mounting bracket (2), and the other end of the spring (33) is fixedly connected to the outside of the clamp (32).

6. The modular airtightness testing device according to claim 1, characterized in that: The inner side of the housing (5) is fixedly connected to a guide rod (6), and the interior of the slide (1) is slidably connected to the outside of the guide rod (6).

7. The modular airtightness testing device according to claim 1, characterized in that: The top of the box (5) is fixedly connected to an L-shaped support plate (7), and an electric push rod (8) is fixedly connected inside the L-shaped support plate (7). The drive end of the electric push rod (8) is fixedly connected to the top of the slide (1).

8. The modular airtightness testing device according to claim 1, characterized in that: The top of the box (5) is fixedly connected to an L-shaped support plate (9), the bottom of the L-shaped support plate (9) is fixedly connected to a camera (10), and the bottom of the box (5) is fixedly connected to a drain pipe (11).

Citation Information

Patent Citations

  • Pipeline airtightness detection equipment

    CN216349401U