A highly adjustable rotary table leak tester

By combining the lifting and rotating components, the problem of insufficient height adjustment in turntable leak detectors is solved, enabling flexible and adaptable testing of workpieces of different heights, and improving testing efficiency and the reliability of results.

CN224354022UActive Publication Date: 2026-06-12CANGZHOU LINGANG XINSHENGDA PACKAGING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CANGZHOU LINGANG XINSHENGDA PACKAGING CO LTD
Filing Date
2025-08-21
Publication Date
2026-06-12

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  • Figure CN224354022U_ABST
    Figure CN224354022U_ABST
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Abstract

This utility model discloses a height-adjustable rotary leak detector, which relates to the field of testing equipment technology. It includes a housing assembly, with a control box fixedly connected to the outer wall of the housing assembly. A front observation door is fixedly connected to the inner wall of the housing assembly near the control box. It also includes a lifting assembly, with a rotating assembly fixedly connected below the lifting assembly. Height adjustment is achieved through the lifting assembly and an electric telescopic rod. The meshing transmission of gears and racks drives the rotating assembly to precisely lift and lower, meeting the testing needs of workpieces of different heights. The electric telescopic rod can drive the adjusting assembly to move up and down for further adjustment. The fixing plate secures the gears to prevent wobbling, achieving stable locking of the lifting assembly. Simultaneously, the movement of the support plate expands and contracts the inlet to self-adjust and test different specifications and models of workpieces, improving the equipment's adaptability to diverse workpieces.
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Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a height-adjustable rotary leak detector. Background Technology

[0002] The existing rotary leak detectors have insufficient height adjustment capability in actual use, making it difficult to adapt to workpieces of different specifications and heights. When faced with products with large height differences, it is often necessary to change the tooling or adjust the installation position of the entire equipment, which is not only cumbersome to operate, but also consumes a lot of time and manpower, seriously affecting production efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a height-adjustable rotary leak detector, solving the problem of insufficient height adjustment capability.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a height-adjustable rotary leak detector, comprising a housing assembly, a control box fixedly connected to the outer wall of the housing assembly, a front observation door fixedly connected to the inner wall of the housing assembly near the control box, and a lifting assembly, a rotating assembly fixedly connected below the lifting assembly, and an adjustment assembly fixedly connected to the outer wall of the rotating assembly; the adjustment assembly includes an electric telescopic rod, a connecting rod fixedly connected to the outer wall above the electric telescopic rod, an air vent fixedly connected to the inner wall of the connecting rod, a sealing ring fixedly connected to the outer wall above the air vent, and a sealing ring fixedly connected to the outer wall below the air vent. A sealing plate is fixedly connected to the outer wall, and a telescopic sleeve is fixedly connected to the outer wall below the sealing plate. A thrust spring is fitted on the outside of the telescopic sleeve. A support plate is slidably connected to the inner wall of the sealing plate, and a second sealing ring is fixedly connected to the inner wall of the sealing plate near the support plate. The adjustment components allow for flexible adjustment of the state of relevant components according to different testing requirements. Through the cooperation of various sealing structures, the sealing performance during the testing process is effectively enhanced, reducing the possibility of gas leakage. The power provided by the electric telescopic rod makes the adjustment process more convenient and efficient. The thrust spring ensures the stability of relevant components within a certain range, improving the adaptability and reliability of the equipment.

[0005] Preferably, the end of the telescopic sleeve away from the sealing plate is fixedly connected to the inner wall of the support plate, and the outer wall below the support plate is smaller than the outer wall above it. The fixed connection between the telescopic sleeve and the support plate ensures the consistency of their movements, making the sliding of the support plate more stable and reliable. The shape design of the support plate facilitates its cooperation with other components, improves the overall coordination of the adjustment assembly, and helps to improve the working efficiency of the equipment.

[0006] Preferably, the lifting assembly includes a fixed sleeve, a connecting frame slidably connected inside the fixed sleeve, a rack fixedly connected to the outer wall of the connecting frame, a gear meshing with the rack, a fixed plate fixedly connected to the outer wall of the gear, the outer wall of the fixed plate fixedly connected to the outer wall of the fixed sleeve, and the upper outer wall of the fixed sleeve fixedly connected to the upper part of the inner wall of the outer shell assembly. The lifting assembly realizes the up-and-down sliding of the connecting frame through the meshing transmission of the gear and rack, thereby driving the relevant components to adjust the height, meeting the detection requirements of workpieces of different heights, improving the versatility of the equipment, ensuring the firm connection between the components, smooth movement, and guaranteeing the accuracy and reliability of height adjustment.

[0007] Preferably, the rotating assembly includes a stepper motor, the output end of which is fixedly connected to a rotating rod. A detection component is fixedly connected to one side of the outer wall of the rotating rod, and a rotating disk is fixedly connected to the outer wall below the rotating rod. The outer wall above the rotating disk is fixedly connected to the outer wall below the electric telescopic rod. Driven by the stepper motor, the rotating assembly drives the detection component and the adjustment component to rotate together, realizing multi-station detection operation, improving detection efficiency, and ensuring the orderly progress of detection work.

[0008] Preferably, the detection component includes an injection cylinder, an air inlet valve pipe connected to one side of the injection cylinder, an injection head connected through the outer wall below the injection cylinder, a first sealing ring sleeved on the outer wall of the injection head, a connecting plate sleeved on the outer wall of the injection cylinder, and a bushing fixedly connected to the rotating rod at the end of the connecting plate away from the injection cylinder. The first sealing ring corresponds to the sealing ring. The detection component realizes the function of injecting gas into the workpiece to be tested through the injection cylinder and the injection head, providing the necessary conditions for leak detection. The corresponding arrangement of the first sealing ring and the sealing ring enhances the sealing performance during the detection process and avoids gas leakage from affecting the detection results. The connection method of the connecting plate and the bushing ensures the stability and flexibility of the connection between the detection component and the rotating rod. The outer wall is fixedly connected to the inner wall.

[0009] This invention provides a height-adjustable rotary leak detector. It offers the following advantages:

[0010] (I) This height-adjustable rotary leak detector achieves height adjustment through a lifting assembly and an electric telescopic rod. The meshing transmission of gears and racks drives the rotating assembly to precisely lift and lower, meeting the testing needs of workpieces of different heights. The electric telescopic rod can drive the adjustment assembly to move up and down for further adjustment. The fixing plate fixes the gears to prevent them from shaking, achieving stable locking of the lifting assembly and ensuring the structural stability after height adjustment. At the same time, the expansion and contraction of the support plate allows for self-adjustment and testing of inlets of different specifications and models of workpieces, improving the equipment's adaptability to diverse workpieces.

[0011] (II) This height-adjustable rotary leak detector can achieve multi-station switching by rotating the adjustment component, which facilitates continuous testing of multiple workpieces and improves testing efficiency. At the same time, the cooperation between the second sealing ring and the sealing ring in the adjustment component and the first sealing ring in the detection component forms a good sealing environment, reducing the impact of gas leakage on the test results. Combined with the sensing of air pressure changes, the test results are more reliable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the present invention;

[0014] Figure 3 This is a schematic diagram of the structure of the detection component of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0016] In the diagram: 1. Outer shell assembly; 14. Front observation door; 2. Control box; 5. Lifting assembly; 51. Fixing sleeve; 52. Rack; 53. Gear; 54. Fixing plate; 55. Connecting frame; 6. Detection assembly; 61. Air injection cylinder; 62. Air injection head; 63. First sealing ring; 64. Connecting plate; 7. Rotating assembly; 71. Stepper motor; 72. Rotating rod; 73. Rotating disk; 8. Adjusting assembly; 81. Electric telescopic rod; 82. Connecting rod; 83. Sealing ring; 84. Air inlet; 85. Sealing plate; 86. Second sealing ring; 87. Thrust spring; 88. Telescopic sleeve; 89. Support plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4This utility model provides a technical solution: a height-adjustable rotary leak detector, including a housing assembly 1, a control box 2 fixedly connected to the outer wall of the housing assembly 1, a front observation door 14 fixedly connected to the inner wall of the housing assembly 1 near the control box 2, and a lifting assembly 5. A rotating assembly 7 is fixedly connected below the lifting assembly 5, and an adjusting assembly 8 is fixedly connected to the outer wall of the rotating assembly 7. The adjusting assembly 8 includes an electric telescopic rod 81, a connecting rod 82 fixedly connected to the outer wall above the electric telescopic rod 81, and a connecting rod 82 fixedly connected to the inner wall of the connecting rod 82. An air inlet 84 is connected to the outer wall above the air inlet 84. A sealing ring 83 is fixedly connected to the outer wall below the air inlet 84. A telescopic sleeve 88 is fixedly connected to the outer wall below the sealing plate 85. A thrust spring 87 is sleeved on the outside of the telescopic sleeve 88. A support plate 89 is slidably connected to the inner wall of the sealing plate 85. A second sealing ring 86 is fixedly connected to the inner wall of the sealing plate 85 near the support plate 89. The end of the telescopic sleeve 88 away from the sealing plate 85 is fixedly connected to the inner wall of the support plate 89. The outer wall below the support plate 89 is smaller than the outer wall above it.

[0019] The lifting assembly 5 includes a fixed sleeve 51, a connecting frame 55 is slidably connected inside the fixed sleeve 51, a rack 52 is fixedly connected to the outer wall of the connecting frame 55, a gear 53 is meshed with the rack 52, a fixed plate 54 is fixedly connected to the outer wall of the gear 53, the outer wall of the fixed plate 54 is fixedly connected to the outer wall of the fixed sleeve 51, and the upper outer wall of the fixed sleeve 51 is fixedly connected to the upper part of the inner wall of the outer casing assembly 1.

[0020] The rotating component 7 includes a stepper motor 71, with a rotating rod 72 fixedly connected to the output end of the stepper motor 71. A detection component 6 is fixedly connected to one side of the outer wall of the rotating rod 72. A rotating disk 73 is fixedly connected to the outer wall below the rotating rod 72. The outer wall above the rotating disk 73 is fixedly connected to the outer wall below the electric telescopic rod 81.

[0021] The detection component 6 includes an air injection cylinder 61. An air inlet valve pipe is connected to one side of the air injection cylinder 61. An air injection head 62 is connected through the outer wall below the air injection cylinder 61. A first sealing ring 63 is sleeved on the outer wall of the air injection head 62. A connecting plate 64 is sleeved on the outer wall of the air injection cylinder 61. The end of the connecting plate 64 away from the air injection cylinder 61 is fixedly connected to the rotating rod 72 through a bushing. The first sealing ring 63 corresponds to the sealing ring 83.

[0022] When in use, after the equipment is started, the operator can control the operation of the entire equipment through the control box 2. First, according to the height of the workpiece to be inspected, the height is adjusted by using the lifting assembly 5. In the lifting assembly 5, the gear 53 rotates and drives the rack 52 that meshes with it to move, thereby causing the connecting frame 55 to slide up and down in the fixed sleeve 51. The movement of the connecting frame 55 drives the rotating assembly 7 connected below to rise and fall synchronously until it reaches the height that matches the workpiece, meeting the inspection requirements of workpieces of different heights. The gear 53 can be fixed by the fixing plate 54 to prevent the gear 53 from shaking when rotating. At the same time, fixing the gear 53 can lock the lifting assembly 5.

[0023] After the height adjustment is completed, the rotating component 7 starts working, the stepper motor 71 starts, and its output end drives the rotating rod 72 to rotate, which in turn drives the rotating disk 73 to rotate. The rotating disk 73 will then drive the adjusting component 8 to rotate synchronously, realizing the switching of multiple workstations so as to continuously detect multiple workpieces. The rotating rod 72 will not drive the detection component 6 to rotate synchronously, because the detection component 6 is fixedly connected to the inner wall above the outer shell component 1 through the connecting plate 64.

[0024] When rotated to the testing position, the adjusting component 8 starts to operate, the electric telescopic rod 81 extends, and drives the air inlet 84, sealing plate 85 and other components to move upward through the connecting rod 82. The support plate 89 contacts the workpiece and is supported by the thrust spring 87, while the telescopic sleeve 88 extends and retracts. At the same time, the second sealing ring 86 ensures the sealing between the sealing plate 85 and the support plate 89. As the electric telescopic rod 81 continues to operate, the sealing ring 83 fits against the first sealing ring 63 on the outer wall of the air injection head 62 in the testing component 6, forming a sealed environment to ensure that the gas does not leak during the testing process.

[0025] Subsequently, the detection component 6 starts working, injecting gas into the gas injection cylinder 61 through the air inlet valve pipe. The gas enters the air guide port 84 through the gas injection head 62, and then enters the workpiece to be tested through the air guide port 84. During the gas injection process, if there is a leak in the workpiece, the air pressure in the sealed environment will change. The equipment can sense this change through relevant detection elements to determine whether there is a leak in the workpiece.

[0026] Throughout the testing process, operators can observe the internal working status of the equipment through the front observation door 14 in order to promptly detect and handle any abnormalities. After the testing is completed, all components are reset, awaiting the start of the next round of testing.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A height-adjustable rotary leak detector, comprising a housing assembly (1), wherein a control box (2) is fixedly connected to the outer wall of the housing assembly (1), and a front observation door (14) is fixedly connected to the inner wall of the housing assembly (1) near the control box (2), characterized in that, It also includes a lifting assembly (5), a rotating assembly (7) is fixedly connected to the lower part of the lifting assembly (5), and an adjusting assembly (8) is fixedly connected to the outer wall of the rotating assembly (7). The adjustment assembly (8) includes an electric telescopic rod (81), a connecting rod (82) is fixedly connected to the outer wall above the electric telescopic rod (81), an air vent (84) is fixedly connected to the inner wall of the connecting rod (82), a sealing ring (83) is fixedly connected to the outer wall above the air vent (84), a sealing plate (85) is fixedly connected to the outer wall below the air vent (84), a telescopic sleeve (88) is fixedly connected to the outer wall below the sealing plate (85), a thrust spring (87) is sleeved on the outside of the telescopic sleeve (88), a support plate (89) is slidably connected to the inner wall of the sealing plate (85), and a second sealing ring (86) is fixedly connected to the inner wall of the sealing plate (85) near the support plate (89).

2. The height-adjustable rotary leak detector according to claim 1, characterized in that: The end of the telescopic sleeve (88) away from the sealing plate (85) is fixedly connected to the inner wall of the support plate (89), and the outer wall below the support plate (89) is smaller than the outer wall above it.

3. The height-adjustable rotary leak detector according to claim 1, characterized in that: The lifting assembly (5) includes a fixed sleeve (51), a connecting frame (55) is slidably connected inside the fixed sleeve (51), a rack (52) is fixedly connected to the outer wall of the connecting frame (55), a gear (53) is meshed with the rack (52), a fixed plate (54) is fixedly connected to the outer wall of the gear (53), the outer wall of the fixed plate (54) is fixedly connected to the outer wall of the fixed sleeve (51), and the outer wall above the fixed sleeve (51) is fixedly connected to the upper part of the inner wall of the outer shell assembly (1).

4. The height-adjustable rotary leak detector according to claim 1, characterized in that: The rotating component (7) includes a stepper motor (71), the output end of which is fixedly connected to a rotating rod (72), a detection component (6) is fixedly connected to one side of the outer wall of the rotating rod (72), a rotating disk (73) is fixedly connected to the outer wall below the rotating rod (72), and the outer wall above the rotating disk (73) is fixedly connected to the outer wall below the electric telescopic rod (81).

5. A height-adjustable rotary leak detector according to claim 4, characterized in that: The detection component (6) includes an air injection cylinder (61), an air inlet valve pipe is connected to one side of the air injection cylinder (61), an air injection head (62) is connected through the outer wall below the air injection cylinder (61), a first sealing ring (63) is sleeved on the outer wall of the air injection head (62), a connecting plate (64) is sleeved on the outer wall of the air injection cylinder (61), and the end of the connecting plate (64) away from the air injection cylinder (61) is fixedly connected to the rotating rod (72) through a bushing, and the first sealing ring (63) corresponds to the sealing ring (83).