Automobile pipeline air tightness inspection equipment
By designing an adaptive clamping and testing device for automotive piping air tightness, the problem of traditional equipment being unable to adapt to different specifications of piping has been solved, achieving efficient and accurate air tightness testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional airtightness testing equipment is difficult to adapt to different specifications of automotive pipelines, requiring frequent changes of clamping equipment, resulting in low testing efficiency and affecting the testing results.
An airtightness testing device for automotive pipelines was designed. By rotating the telescopic rod to adjust the distance of the clamping plate, and combining the control component, adjustment component and observation component, it can achieve adaptive clamping and testing of pipelines of different specifications. The airtightness is determined by the swaying of the testing rod, and close-range observation is carried out through the sealing component and observation component.
It enables efficient and adaptable clamping and testing of automotive pipelines of different specifications, improving the accuracy and efficiency of testing, and enhancing the control, protection, and observation effects of the equipment.
Smart Images

Figure CN224066285U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of airtightness testing technology, specifically an airtightness testing device for automotive pipelines. Background Technology
[0002] Automotive piping systems involve the transmission of various media such as fuel, brake fluid, coolant, and gas. If there is a leak in the piping, it may lead to serious safety accidents such as fuel leaks causing fires, brake fluid leaks causing brake failure, coolant leaks causing engine overheating and damage, and gas leaks causing explosions.
[0003] By conducting airtightness tests, potential leaks can be detected and eliminated in advance, ensuring vehicle safety. Through rigorous airtightness testing, companies can produce high-quality automotive piping products, improve customer satisfaction and loyalty, establish a good brand image, and thus gain a favorable position in market competition.
[0004] After prolonged use, it was found that traditional airtightness testing equipment is designed for testing only a single model or part of the automotive piping. This means that when dealing with different specifications of automotive piping, it is necessary to change the clamping equipment, which is not easy to adjust. This is not only time-consuming and labor-intensive, but also affects the airtightness testing process.
[0005] Therefore, this utility model provides an equipment for testing the airtightness of automotive pipelines. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The automotive pipeline airtightness testing equipment of this utility model includes a testing box; a rotating telescopic rod is rotatably fitted on the outer wall of the testing box; two rotating telescopic rods are provided on the outer wall of the testing box; a slide is fixedly connected to the end of each rotating telescopic rod; a ventilation groove is opened in the middle of the rotating telescopic rod; a sliding rod is slidably fitted on the inner wall of the slide; a control component is rotatably fitted on the inner wall of the slide; a clamping plate is fixedly connected to the side wall of the sliding rod; a sliding groove is opened on the side wall of the testing box; a testing rod is slidably fitted on the inner wall of the sliding groove; an adjustment component is fixedly connected to the side wall of the sliding groove; an observation component is installed on the top of the testing box; a sealing component is opened on the top of the testing box; through the above structure, the rotating telescopic rod can... The device features adjustable clamping plates to accommodate different lengths of automotive piping. The distance between the clamping plates can be adjusted to accommodate different specifications of automotive piping. A venting groove allows for air circulation to the piping via external equipment. The device also uses the movement of the test needle on the side wall of the test needle to test the airtightness of the automotive piping. Adjusting the height of the test needle allows for adjustment of the component settings. A sealing component provides a tight seal to the front of the test chamber. When the movement of the test needle is not significant, close-up observation is possible using the observation component, enhancing the adaptability of the automotive piping airtightness testing equipment.
[0008] Preferably, the control component includes a bidirectional threaded rod; a control knob is fixedly connected to the end of the bidirectional threaded rod; the control knob is rotatably engaged with the outer wall of the slide; the bidirectional threaded rod and the sliding rod are connected by screws; a protective plate is fixedly connected to the side wall of the bidirectional threaded rod; through the above structure, the bidirectional threaded rod and the control knob can control and adjust the distance between the two clamping plates, and the protective plate can block and protect the slide at the adjustment position, further enhancing the control and protection effect of the automotive pipeline airtightness testing equipment.
[0009] Preferably, the adjustment assembly includes a fixing plate; the fixing plate is fixedly connected to the outer wall of the detection rod and the detection box; an electric actuator is installed on the top of the fixing plate; the output end of the electric actuator is fixedly connected to the top of the fixing plate connected to the side wall of the detection rod; through the above structure, the setting of the fixing plate and the electric actuator can adjust the height of the detection rod, which is convenient for air tightness testing of automotive pipelines of different specifications, and further enhances the detection and adjustment effect of the automotive pipeline air tightness testing equipment.
[0010] Preferably, an elastic restraint ring is fixed to the side wall of the clamping plate; the elastic restraint ring is arranged in a semi-arc shape; through the above structure, the setting of the elastic restraint ring can provide auxiliary support and clamping for the automotive pipeline, preventing the automotive pipeline from falling off when clamped by the side wall of the clamping plate, and further enhancing the auxiliary support effect of the automotive pipeline airtightness testing equipment.
[0011] Preferably, the observation component includes a periscope; a fall-prevention ring is fixed to the top of the detection box; the inner wall of the fall-prevention ring and the outer wall of the periscope are in sliding fit; through the above structure, the periscope and the periscope can be set to make detailed observation of the detection hairs at various positions of the detection hair rod, which can better find the leakage position and further enhance the observation effect of the automotive pipeline air tightness testing equipment.
[0012] Preferably, the sealing component includes a through groove; a sealing plate is slidably fitted on the inner side wall of the through groove; through the above structure, the sealing plate and the through groove can seal the side of the vehicle pipeline into which it is inserted, blocking the external airflow, and further enhancing the sealing effect of the vehicle pipeline airtightness testing equipment.
[0013] Preferably, the outer wall of the rotating telescopic rod is fixed with an anti-slip block; through the above structure, the anti-slip block can prevent the rotating telescopic rod from slipping when the test box is used, further enhancing the anti-slip effect of the automotive pipeline airtightness testing equipment.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. The automotive pipeline airtightness testing equipment of this utility model can adjust the distance between two clamping plates by rotating the telescopic rod, allowing for adaptive clamping of automotive pipelines of different lengths. The control component allows for adaptive adjustment of the distance between the clamping plates to accommodate automotive pipelines of different specifications. The venting groove allows for ventilation of the pipeline via external equipment. The airtightness of the automotive pipeline is tested by observing the movement of the test hair on the side wall of the test hair rod. The height of the test hair rod can be adjusted by the adjustment component. The sealing component can seal the front of the test chamber. When the movement of the test hair rod is not obvious, close-up observation can be performed using the observation component, enhancing the adaptability of the automotive pipeline airtightness testing equipment.
[0016] 2. The automotive pipeline airtightness testing equipment described in this utility model allows for the control and adjustment of the distance between two clamping plates through the setting of a bidirectional threaded rod and a control knob. The setting of a protective plate can block and protect the slide at the adjustment position, further enhancing the control and protection effect of the automotive pipeline airtightness testing equipment. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] Figure 1 This is a perspective view of the present invention;
[0019] Figure 2 This is a schematic diagram of the carriage structure in this utility model;
[0020] Figure 3 This is a schematic diagram of the fixing plate structure in this utility model;
[0021] Figure 4 This is a schematic diagram of the elastic restraint ring structure in this utility model.
[0022] In the diagram: 1. Detection box; 11. Rotating telescopic rod; 12. Slide; 13. Sliding rod; 14. Clamping plate; 15. Detection rod; 16. Slide groove; 17. Ventilation groove; 2. Bidirectional threaded rod; 21. Control knob; 22. Protective plate; 3. Fixing plate; 31. Electric actuator; 4. Elastic restraint ring; 5. Periscope; 51. Anti-fall ring; 6. Sealing plate; 61. Through groove; 7. Anti-slip block. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figures 1 to 4As shown, an embodiment of the present invention provides an automotive pipeline airtightness testing device, comprising a testing box 1; a rotating telescopic rod 11 is rotatably fitted on the outer wall of the testing box 1; two rotating telescopic rods 11 are provided on the outer wall of the testing box 1; a slide 12 is fixedly connected to the end of each rotating telescopic rod 11; a venting groove 17 is provided in the middle of the rotating telescopic rod 11; a sliding rod 13 is slidably fitted on the inner wall of the slide 12; a control component is rotatably fitted on the inner wall of the slide 12; a clamping plate 14 is fixedly connected to the side wall of the sliding rod 13; a sliding groove 16 is provided on the side wall of the testing box 1; a sliding groove 16 is slidably fitted on the inner wall of the sliding groove 16. The system includes a detection rod 15; an adjustment assembly fixed to the side wall of the slide groove 16; an observation assembly installed on the top of the detection box 1; and a sealing assembly on the top of the detection box 1. During operation, the distance between the two clamping plates 14 can be controlled by rotating the telescopic rod 11, allowing for the clamping of automotive pipes of different lengths. The distance between the clamping plates 14 can be adjusted via the control assembly to accommodate different specifications of automotive pipes. An external device can be connected to the venting groove 17 to ventilate the inside of the pipe. The movement of the detection hairs on the side wall of the detection rod 15 is used to determine the condition of the automotive pipe. Air tightness is ensured by adjusting the height of the detection rod 15 using the adjustment component, and by sealing the front of the detection box 1 to prevent external airflow from blowing the detection rod 15. When the movement of the detection rod 15 is not obvious, it can be observed at close range using the observation component. The distance between the two clamping plates 14 can be adjusted by rotating the telescopic rod 11, allowing for adaptive clamping of automotive pipes of different lengths. The distance between the clamping plates 14 can be adjusted to accommodate different specifications of... When testing automotive pipelines, the clamping mechanism is adjusted to adapt to the system. The ventilation slot 17 allows for ventilation of the pipeline via an external device. Simultaneously, the airtightness of the automotive pipeline is tested by observing the movement of the test hair on the side wall of the test hair rod 15. The height of the test hair rod 15 can be adjusted by the adjustment component, and the front of the test box 1 can be sealed off by the sealing component. When the movement of the test hair rod 15 is not significant, close-up observation can be performed by observing the component, thus enhancing the testing adaptability of the automotive pipeline airtightness testing equipment.
[0025] like Figures 2 to 4As shown, the control assembly includes a bidirectional threaded rod 2; a control knob 21 is fixedly connected to the end of the bidirectional threaded rod 2; the control knob 21 is rotatably engaged with the outer wall of the slide 12; the bidirectional threaded rod 2 and the sliding rod 13 are connected by screws; a protective plate 22 is fixedly connected to the side wall of the bidirectional threaded rod 2; during operation, the distance between the clamping plates 14 can be controlled and adjusted by rotating the bidirectional threaded rod 2 through the control knob 21; the protective plate 22 can prevent damage caused by excessive adjustment between the slides 12; the distance between the two clamping plates 14 can be controlled and adjusted by the bidirectional threaded rod 2 and the control knob 21; the protective plate 22 can block and protect the slide 12 in the adjusted position, further enhancing the control and protection effect of the automotive pipeline airtightness testing equipment.
[0026] like Figures 1 to 3 As shown, the adjustment assembly includes a fixing plate 3; the fixing plate 3 is fixedly connected to the outer wall of the detection rod 15 and the detection box 1; an electric push rod 31 is installed on the top of the fixing plate 3; the output end of the electric push rod 31 is fixedly connected to the top of the fixing plate 3, which is connected to the side wall of the detection rod 15; during operation, the height of the detection rod 15 can be adjusted by the fixing plate 3 and the electric push rod 31, allowing for air tightness testing at any position when dealing with different specifications of automotive pipelines; the adjustable height of the detection rod 15 by the fixing plate 3 and the electric push rod 31 facilitates air tightness testing of different specifications of automotive pipelines, further enhancing the testing and adjustment effect of the automotive pipeline air tightness testing equipment.
[0027] like Figures 1 to 4 As shown, an elastic restraint ring 4 is fixed to the side wall of the clamping plate 14; the elastic restraint ring 4 is set in a semi-arc shape; during operation, the elastic restraint ring 4 can support and assist in clamping the side wall of the automobile pipeline held by the clamping plate 14; the setting of the elastic restraint ring 4 can provide auxiliary support and clamping for the automobile pipeline, preventing the automobile pipeline from falling off when clamped by the side wall of the clamping plate 14, and further enhancing the auxiliary support effect of the automobile pipeline airtightness testing equipment.
[0028] like Figures 1 to 2 As shown, the observation assembly includes a periscope 5; a fall arrestor 51 is fixed to the top of the inspection box 1; the inner wall of the fall arrestor 51 and the outer wall of the periscope 5 are in sliding fit; during operation, the periscope 5 allows for accurate observation of various positions of the inspection rod 15, and the fall arrestor 51 provides support for the periscope 5 during use, preventing it from falling and causing the telescopic structure to jam; the periscope 5 and its configuration allow for detailed observation of the inspection rod 15 at various positions, enabling better identification of leaks and further enhancing the observation effect of the automotive pipeline airtightness testing equipment.
[0029] like Figures 1 to 2As shown, the sealing component includes a through groove 61; a sealing plate 6 is slidably fitted on the inner wall of the through groove 61; during operation, the sealing plate 6 and the through groove 61 can seal the side of the vehicle pipeline entering, reducing the impact of destructive factors on the accuracy of the test; the sealing plate 6 and the through groove 61 can seal the side of the vehicle pipeline being inserted, blocking external airflow and further enhancing the sealing effect of the vehicle pipeline airtightness testing equipment.
[0030] like Figure 3 As shown, an anti-slip block 7 is fixed to the outer wall of the rotating telescopic rod 11. During operation, the anti-slip block 7 can increase the contact area and friction of the outer wall of the rotating telescopic rod 11. The anti-slip block 7 can prevent the rotating telescopic rod 11 from slipping when it is used in the test box 1, further enhancing the anti-slip effect of the automotive pipeline airtightness testing equipment.
[0031] During operation, the distance between the two clamping plates 14 can be controlled by rotating the telescopic rod 11, allowing for the clamping of automotive pipes of different lengths. The distance between the clamping plates 14 can be adjusted via the control component to accommodate different specifications of automotive pipes. An external device can be connected to the vent 17 to ventilate the inside of the pipe. The airtightness of the automotive pipe is determined by whether the detection bristles on the side wall of the detection bristle rod 15 are moving. The height of the detection bristle rod 15 can be adjusted via the adjustment component. The sealing component can seal the front of the detection box 1 to prevent external airflow from blowing the detection bristle rod 15. When the movement of the detection bristle rod 15 is not obvious, it can be observed closely using the observation component. The distance between the clamping plates 14 can be controlled by rotating the bidirectional threaded rod 2 via the control knob 21. The protective plate 22 prevents damage caused by excessive adjustment between the slides 12. The height of the testing rod 15 can be adjusted by the fixing plate 3 and the electric push rod 31. Air tightness testing can be performed at any position when facing different specifications of automotive pipelines. The elastic restraint ring 4 supports and assists in clamping the side wall of the automotive pipeline held by the clamping plate 14. The periscope 5 allows for accurate observation of various positions of the testing rod 15. The anti-fall ring 51 supports the periscope 5 during use, preventing it from falling and causing the telescopic structure to jam. The sealing plate 6 and the through groove 61 can seal the side of the automotive pipeline entering, reducing the impact of factors that could disrupt the accuracy of the test. The anti-slip block 7 increases the contact area and friction of the outer wall of the rotating telescopic rod 11.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A device for testing the tightness of a pipe of a vehicle, comprising a testing tank (1); characterized in that: The outer side wall of the detection box (1) is rotationally connected with a rotating telescopic rod (11); the rotating telescopic rod (11) is provided with two on the outer side wall of the detection box (1); the end of each rotating telescopic rod (11) is fixedly connected with a sliding frame (12); the middle part of the rotating telescopic rod (11) is provided with a ventilation groove (17); the inner side wall of the sliding frame (12) is slidably connected with a sliding rod (13); the inner side wall of the sliding frame (12) is rotationally connected with a control assembly; the side wall of the sliding rod (13) is fixedly connected with a clamping plate (14); the side wall of the detection box (1) is provided with a sliding groove (16); the inner side wall of the sliding groove (16) is slidably connected with a detection hair rod (15); the side wall of the sliding groove (16) is fixedly connected with an adjusting assembly; the top of the detection box (1) is provided with an observation assembly; the top of the detection box (1) is provided with a sealing assembly.
2. The automotive pipe air tightness inspection apparatus according to claim 1, characterized by: The control assembly comprises a bidirectional threaded rod (2); the end of the bidirectional threaded rod (2) is fixedly connected with a control knob (21); the control knob (21) is rotationally connected with the outer side wall of the sliding frame (12); the bidirectional threaded rod (2) is screw-connected with the sliding rod (13); the side wall of the bidirectional threaded rod (2) is fixedly connected with a protective plate (22).
3. The automotive pipe air tightness inspection apparatus according to claim 1, characterized by: The adjusting assembly comprises a fixed plate (3); the fixed plate (3) is fixedly connected between the detection hair rod (15) and the outer side wall of the detection box (1); the top of the fixed plate (3) is provided with an electric push rod (31); the output end of the electric push rod (31) is fixedly connected with the top of the fixed plate (3) connected with the side wall of the detection hair rod (15).
4. The automotive pipe air tightness inspection apparatus according to claim 1, characterized by: The side wall of the clamping plate (14) is fixedly connected with an elastic binding ring (4); the elastic binding ring (4) is arranged in a semicircular shape.
5. The apparatus for testing the air tightness of a pipe of a vehicle according to claim 1, characterized in that: The observation assembly comprises a periscope (5); the top of the detection box (1) is fixedly connected with a fall-preventing ring (51); the inner side wall of the fall-preventing ring (51) is slidably connected with the outer side wall of the periscope (5).
6. The automotive pipe air tightness inspection apparatus according to claim 1, characterized by: The sealing assembly comprises a through groove (61); the inner side wall of the through groove (61) is slidably connected with a sealing plate (6).
7. The apparatus for testing the air tightness of a pipe of a vehicle according to claim 1, characterized in that: The outer side wall of the rotating telescopic rod (11) is fixedly connected with an anti-skid block (7).