Automobile pipeline airtightness leak detection device

Abstract

The utility model relates to the field of detection devices, and discloses an automobile pipeline airtightness leakage detection device which comprises a detection box, a fixed seat is arranged at the top of the detection box, a handle is fixedly connected to the upper surface of the fixed seat, an air pump is arranged in the fixed seat, and the output end of the air pump is fixedly connected with a breather pipe. The side wall of the ventilation pipe is fixedly connected to the interior of the fixing base, a sealing assembly is arranged on the side wall of the ventilation pipe, a clamping plate is rotationally connected to the lower surface of the fixing base, a rotating ring is rotationally connected to the lower surface of the fixing base, and a rotating frame is rotationally connected to the interior of the rotating ring. According to the utility model, through the cooperation of the fixing seat, the handle, the ventilation pipe, the air pump, the sliding block, the rotating block, the screw rod, the rotary knob and other structures, the effect of fixing automobile pipelines with different diameters is achieved, and the problems that some automobile pipeline airtightness leakage detection devices are single in structure and can only fix pipelines with single inner diameters are solved. Through the structure, the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of detection devices, in particular to an automobile pipeline airtight leakage detection device. Background Art

[0002] Automobile pipeline refers to the pipeline system used to transport various fluids (such as fuel, coolant, lubricant, brake fluid, etc.) in the car. These pipelines play an important role in connecting various automobile components and systems, ensuring the normal operation of the vehicle. The air tightness of automobile pipelines is directly related to the performance of the vehicle. The methods for air tightness detection include visual bubble detection method, pressure sensor detection or using gas detection instruments to detect the gas composition in the pipeline.

[0003] A Chinese patent document with a search announcement number of CN204202825U discloses an air tightness inspection device for an automobile fuel pipeline, comprising a base plate, a pillar and a leak detection component, wherein the pillar is mounted on the base plate, and two sets of leak detection components are arranged on the base plate, and there are eight pillars, each set of leak detection components cooperates with four pillars, and the pillars are respectively distributed at the head, middle and tail relative to the fuel pipeline, and the leak detection component is fixed to the base plate through the pillars, and the leak detection component comprises a mouth lock cover, a hydraulic cylinder and a clamp, and the clamp is hinged to the pillar arranged in the middle of the base plate, the hydraulic cylinder is arranged at the head position relative to the fuel pipeline, and the mouth lock cover is arranged at the air inlet portion relative to the fuel pipeline and cooperates with the pillar.

[0004] The utility model has a simple structure and uses an ultra-thin cylinder to take in air, which is faster, more stable and more efficient than traditional manual leak detection. However, the patent does not take into account the problem that it is inconvenient to fix pipes of different inner diameters when testing them. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an automobile pipeline airtight leak detection device, which aims to improve the problem that some automobile pipeline airtight leak detection devices have a single structure and can only fix pipelines with a single inner diameter.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an automobile pipeline airtight leak detection device, comprising a detection box, a fixed seat is provided on the top of the detection box, a handle is fixedly connected to the upper surface of the fixed seat, an air pump is provided inside the fixed seat, a ventilation pipe is fixedly connected to the output end of the air pump, the side wall of the ventilation pipe is fixedly connected to the inside of the fixed seat, a sealing assembly is provided on the side wall of the ventilation pipe, a clamping plate is rotatably connected to the lower surface of the fixed seat, a swivel is rotatably connected to the lower surface of the fixed seat, a rotating frame is rotatably connected to the inside of the rotating ring, the side wall of the clamping plate is slidably connected to the inside of the rotating frame, the side wall of the swivel is rotatably connected to a slider, the lower surface of the fixed seat is rotatably connected to a rotating block, the rotating block is rotatably connected to a screw, one end of the screw is fixedly connected to a torsion, and the inner side wall of the slider is threadedly connected to the side wall of the screw.

[0007] Furthermore, the sealing assembly includes an inflatable air cushion, and a side wall of the inflatable air cushion is fixedly connected to a side wall of the ventilation pipe.

[0008] Furthermore, a fixing plate is fixedly connected to the upper surface of the detection box, and a limiting groove is provided inside the fixing plate.

[0009] Furthermore, an extension plate is fixedly connected to a side wall of the fixing plate, and the extension plate is arranged below the fixing seat.

[0010] Furthermore, the side wall of the fixing seat is fixedly connected to the limiting plate, and the side wall of the limiting plate is slidably connected to the inside of the limiting groove.

[0011] Furthermore, the fixing seat is connected to the detection box through the limiting plate.

[0012] Furthermore, an air outlet hole is provided inside the ventilation pipe, an air inlet pipe is provided inside the inflatable air cushion, and the air outlet hole is connected to the air inlet pipe.

[0013] Beneficial Effects

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the fixing seat, handle, vent pipe, air pump, inflatable air cushion, clamping plate, swivel, swivel frame, slider, swivel block, screw and twist are matched to achieve the effect of fixing automobile pipes of different diameters, and solve the problem that the structure of some automobile pipeline airtight leak detection devices is single and can only fix pipes of a single inner diameter. The practicability of the equipment is improved through the above structure.

[0016] 2. In the utility model, the fixing plate, the limiting groove, the extension plate and the limiting plate cooperate to achieve the effect of facilitating the fixing of the fixing seat, making the equipment more stable when performing pipeline leak detection work, solving the problem of complex and troublesome structure when fixing the airtight leak detection device of some automobile pipelines, and improving the efficiency of fixing the equipment through the above structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of an automobile pipeline airtight leak detection device proposed by the utility model;

[0018] Figure 2 This is a structural diagram of a vent pipe of an automobile pipeline airtight leak detection device proposed by the utility model;

[0019] Figure 3 This is a structural diagram of a fixing seat of an automobile pipeline airtight leak detection device proposed by the utility model;

[0020] Figure 4 The utility model discloses a fixing plate structure diagram of an automobile pipeline airtight leak detection device.

[0021] Legend:

[0022] 1. Test box; 2. Fixed seat; 3. Handle; 4. Ventilation pipe; 5. Air pump; 6. Inflatable air cushion; 7. Clamping plate; 8. Swivel; 9. Rotating frame; 10. Slider; 11. Rotating block; 12. Screw; 13. Twist; 14. Fixed plate; 15. Limiting groove; 16. Extension plate; 17. Limiting plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1 - Figure 3The utility model provides an embodiment: an automobile pipeline airtight leak detection device, comprising a detection box 1, a fixed seat 2 is arranged on the top of the detection box 1, a handle 3 is fixedly connected to the upper surface of the fixed seat 2, an air pump 5 is arranged inside the fixed seat 2, an output end of the air pump 5 is fixedly connected to a ventilation pipe 4, a side wall of the ventilation pipe 4 is fixedly connected to the inside of the fixed seat 2, a sealing assembly is arranged on the side wall of the ventilation pipe 4, a clamping plate 7 is rotatably connected to the lower surface of the fixed seat 2, a swivel 8 is rotatably connected to the lower surface of the fixed seat 2, a rotating frame 9 is rotatably connected to the inside of the rotating ring 8, a side wall of the clamping plate 7 is slidably connected to the inside of the rotating frame 9, a slider 10 is rotatably connected to the side wall of the swivel 8, a rotating block 11 is rotatably connected to the lower surface of the fixed seat 2, a screw 12 is rotatably connected to the inside of the rotating block 11, a twist 13 is fixedly connected to one end of the screw 12, an inner side wall of the slider 10 is threadedly connected to the side wall of the screw 12, and the sealing assembly comprises an inflatable air cushion 6, and a side wall of the inflatable air cushion 6 is fixedly connected to the side wall of the ventilation pipe 4.

[0025] When performing the task of leak detection on automobile pipelines, one end of the automobile U-shaped tube is sleeved on the outside of the inflatable air cushion 6. Next, by turning the knob 13, the screw 12 is driven to rotate, so that the slider 10 moves on the screw 12, and then the swivel 8 is driven to rotate on the fixed seat 2. The rotation of the swivel 8 drives the rotating frame 9, so that the clamping plate 7 is deflected. In this process, one side of the clamping plate 7 fits tightly with the outside of the automobile U-shaped tube to fix the pipeline. After completing the above preparations, start the air pump 5 to extract external air and send it into the pipeline through the ventilation pipe 4. When air passes through the air outlet, it inflates the inside of the inflatable air cushion 6. As the inflatable air cushion 6 expands, one end of the pipeline is closed, thereby ensuring that air can smoothly enter the inside of the pipeline.

[0026] Reference Figure 2 and Figure 4 A fixing plate 14 is fixedly connected to the upper surface of the detection box 1, and a limiting groove 15 is provided inside the fixing plate 14. An extension plate 16 is fixedly connected to the side wall of the fixing plate 14, and the extension plate 16 is arranged below the fixing seat 2. A limiting plate 17 is fixedly connected to the side wall of the fixing seat 2, and the side wall of the limiting plate 17 is slidably connected inside the limiting groove 15. The fixing seat 2 is connected to the detection box 1 through the limiting plate 17. An air outlet is provided inside the ventilation pipe 4, and an air inlet pipe is provided inside the inflatable air cushion 6, and the air outlet is connected to the air inlet pipe.

[0027] After completing the fixing of the pipeline, pour a proper amount of clean water into the detection box 1. This is to make it easier to find bubbles in subsequent operations. When the bubbles in the water gradually dissipate, place the fixing seat 2 on the extension plate 16 so that it fits tightly with the extension plate 16. At this time, the limiting plate 17 will be inserted into the inside of the limiting groove 15 to ensure that the fixing seat 2 can stay stably on the extension plate 16 to prevent it from shifting in subsequent operations. At this time, both ends of the pipeline are outside the water. This is to facilitate observation of whether there are leaks in the pipeline. If there are leaks in the pipeline, bubbles will be generated when air passes through the leaks. It is possible to determine whether there are leaks in the pipeline by observing whether there are bubbles in the water.

[0028] Working principle: When using the device to detect leaks in automobile pipelines, first, one end of the automobile U-shaped pipe is sleeved on the outside of the inflatable air cushion 6, and then the screw 12 is driven to rotate by turning the knob 13, so that the slider 10 moves on the screw 12, thereby rotating the swivel 8 on the fixed seat 2. When the swivel 8 rotates, the clamping plate 7 is deflected through the rotating frame 9, so that one side of the clamping plate 7 is attached to the outside of the automobile U-shaped pipe to fix it. At this time, the air pump 5 is started to draw the external air into the pipe through the ventilation pipe 4. The air passes through the air pump 5. When the air outlet is opened, the inside of the inflatable air cushion 6 will be inflated. When the inflatable air cushion 6 expands, one end of the pipe will be closed, so that air can smoothly enter the inside of the pipe. At this time, pour clean water into the detection box 1, and wait for the bubbles in the water to dissipate. At this time, place the fixing seat 2 on the extension plate 16, and insert the limiting plate 17 connected to the side wall of the fixing seat 2 into the limiting groove 15 to fix the fixing seat 2. At this time, both ends of the pipe are outside the water. When there is a leak in the pipe, bubbles are generated when the air passes through the leak. At this time, by observing whether there are bubbles in the water, it is determined whether there is a leak in the pipe.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automobile pipeline airtightness leak detection device, comprising a detection box (1), characterized in that: The top of the detection box (1) is provided with a fixed seat (2), the upper surface of the fixed seat (2) is fixedly connected with a handle (3), the interior of the fixed seat (2) is provided with an air pump (5), the output end of the air pump (5) is fixedly connected with a ventilation pipe (4), the side wall of the ventilation pipe (4) is fixedly connected to the interior of the fixed seat (2), the side wall of the ventilation pipe (4) is provided with a sealing component, the lower surface of the fixed seat (2) is rotatably connected with a clamping plate (7), and the lower surface of the fixed seat (2) is rotatably connected with a A rotating ring (8), wherein the rotating ring (8) is rotatably connected to a rotating frame (9), the side wall of the clamping plate (7) is slidably connected to the inside of the rotating frame (9), the side wall of the rotating ring (8) is rotatably connected to a slider (10), the lower surface of the fixed seat (2) is rotatably connected to a rotating block (11), the rotating block (11) is rotatably connected to a screw rod (12), one end of the screw rod (12) is fixedly connected to a rotating knob (13), and the inner wall of the slider (10) is threadedly connected to the side wall of the screw rod (12).

2. The automobile pipeline airtight leak detection device according to claim 1, characterized in that: The sealing assembly comprises an inflatable air cushion (6), the side wall of the inflatable air cushion (6) being fixedly connected to the side wall of the ventilation pipe (4).

3. The automobile pipeline airtight leak detection device according to claim 1, characterized in that: A fixing plate (14) is fixedly connected to the upper surface of the detection box (1), and a limiting groove (15) is provided inside the fixing plate (14).

4. The automobile pipeline airtight leak detection device according to claim 3, characterized in that: An extension plate (16) is fixedly connected to the side wall of the fixing plate (14), and the extension plate (16) is arranged below the fixing seat (2).

5. The automobile pipeline airtight leak detection device according to claim 4, characterized in that: The side wall of the fixing seat (2) is fixedly connected to a limiting plate (17), and the side wall of the limiting plate (17) is slidably connected to the inside of the limiting groove (15).

6. The automobile pipeline airtight leak detection device according to claim 5, characterized in that: The fixing seat (2) is connected to the detection box (1) via the limiting plate (17).

7. The automobile pipeline airtight leak detection device according to claim 2, characterized in that: An air outlet hole is provided inside the ventilation pipe (4), an air inlet pipe is provided inside the inflatable air cushion (6), and the air outlet hole is connected to the air inlet pipe.

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