Automobile pipeline air tightness detection device

Abstract

The utility model discloses an automobile pipeline air tightness detection device, which belongs to the technical field of air tightness detection and comprises an automobile pipeline body, the side edge of the automobile pipeline body is connected with an air delivery pipe used for assisting the air tightness detection of the automobile pipeline body, and the side edge of the automobile pipeline body is provided with a first plugging piece. The side edge of the first plugging piece is provided with an outer shell, the upper side of the outer shell is provided with a second observation window, the upper side of the second observation window is provided with a third observation window for assisting the airtightness detection of the automobile pipeline body, and the interior of the third observation window is slidably connected with a first piston; according to the device, the automobile pipeline body is placed in the outer shell, the first piston is moved to the lowest position, water in the water tank is conveyed into the outer shell through the water pump, the air pump is started to discharge air in the compressed air tank into the automobile pipeline body, and the air tightness of the automobile pipeline body is detected by observing whether the piston moves or not.

Description

Technical Field

[0001] The utility model belongs to the technical field of air tightness detection, in particular to an automobile pipeline air tightness detection device. Background Art

[0002] Cars are the most important means of transportation nowadays. There are pipes inside them. The main function of the internal pipes is to provide a passage for the fluid in the car, so their air tightness needs to be tested.

[0003] Current automotive pipeline air tightness testing devices generally use a combination of water and gas for testing. However, during the test, bubbles are generated in tiny gaps that are difficult to observe with the naked eye, which can easily lead to detection errors.

[0004] For example, a Chinese patent document (application publication number CN116659776A) of the prior art discloses an automobile pipeline air tightness detection device, which can clamp the pipeline by setting a threaded rod and a first clamping block to prevent the pipeline from shaking while performing air tightness detection on the pipeline, thereby improving the stability of the device. The prior art has the following problem: generally, water and gas are used in combination for detection, but during detection, bubbles are generated in small gaps, which are difficult to be observed by the naked eye, and easily lead to detection errors.

[0005] Therefore, in view of this situation, it is urgent to design and produce an automobile pipeline air tightness detection device to meet the needs of practical use. Utility Model Content

[0006] The utility model aims to provide an automobile pipeline air tightness detection device to solve the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automobile pipeline air tightness detection device, comprising an automobile pipeline body, a side of the automobile pipeline body is connected to an air pipe for assisting the automobile pipeline body air tightness detection, an end of the air pipe away from the automobile pipeline is connected to an air pump, a fixed end of the air pump is fixedly connected to a compressed air tank, a first plugging piece is installed on the side of the automobile pipeline body, an outer shell is installed on the side of the first plugging piece, a second observation window is installed on the upper side of the outer shell, a third observation window for assisting the automobile pipeline body air tightness detection is installed on the upper side of the second observation window, and a first piston is slidably connected to the inside of the third observation window.

[0008] Preferably, a water outlet with a valve is provided on the upper side of the second observation window, and a water inlet with a valve is provided on the upper side of the second observation window.

[0009] Preferably, the water inlet end of the water inlet is connected to a water pipe, and the end of the water pipe away from the water inlet is connected to a water pump.

[0010] Preferably, the fixed end of the water pump is fixedly connected to a water tank, and a first observation window for assisting in the air tightness detection of the automobile pipeline body is installed on the side of the outer shell.

[0011] Preferably, a telescopic rod is fixedly connected to the interior of the outer shell, and the extended end of the telescopic rod is fixedly connected to a second piston which is slidably connected to the outer shell.

[0012] Preferably, a second plugging piece is installed at one end of the automobile pipeline away from the gas pipe, and a pressure detector is installed on the upper side of the second plugging piece.

[0013] Preferably, a humidity sensor for detecting the air tightness of the automobile pipeline body is installed on the side of the second sealing member.

[0014] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0015] The automobile pipeline air tightness detection device is configured to place the automobile pipeline body in the outer shell, move the first piston to the lowest position, transport water in the water tank to the inner part of the outer shell through the water pump, start the air pump to discharge the air in the compressed gas tank into the inner part of the automobile pipeline body, and detect the air tightness of the automobile pipeline body by observing whether the piston moves. It is unnecessary to manually observe the bubbles, so as to avoid the bubbles being too small or not observed due to distraction, which may lead to inaccurate detection data.

[0016] The telescopic rod is started to drive the second piston to move, so as to squeeze the water in the outer shell, and the inside of the automobile pipeline body is detected by a humidity sensor to check the air tightness of the automobile pipeline body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the second piston of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the humidity sensor of the utility model.

[0021] Description of reference numerals:

[0022] In the figure: 1. compressed gas tank; 2. air pump; 3. gas pipe; 4. automobile pipeline body; 5. first plugging piece; 6. first observation window; 7. outer shell; 8. second observation window; 9. water outlet; 10. third observation window; 11. water inlet; 12. first piston; 13. water pipe; 14. water pump; 15. water tank; 16. second plugging piece; 17. pressure detector; 18. humidity sensor; 19. telescopic rod; 20. second piston. DETAILED DESCRIPTION

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0024] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0025] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0026] In order to solve the problem that water and gas are usually used for detection, but bubbles are generated in small gaps during detection, which are difficult to be observed by the naked eye and easily lead to detection errors, such as Figures 1 to 3 The automobile pipeline air tightness detection device shown in the figure includes an automobile pipeline body 4, characterized in that: the side of the automobile pipeline body 4 is connected with an air supply pipe 3 for assisting the automobile pipeline body 4 in air tightness detection, the end of the air supply pipe 3 away from the automobile pipeline is connected with an air pump 2, the fixed end of the air pump 2 is fixedly connected with a compressed gas tank 1, the side of the automobile pipeline body 4 is installed with a first plugging member 5, the side of the first plugging member 5 is installed with an outer shell 7, the upper side of the outer shell 7 is installed with a second observation window 8, and the upper side of the second observation window 8 is installed with an auxiliary automobile pipeline body 4 air tightness detection device. The third observation window 10 is for sexual detection, and a hole is provided at the bottom of the third observation window 10 to facilitate the entry of water. A scale is provided on the side of the third observation window 10 to observe the gas. The inside of the third observation window 10 is slidably connected with a first piston 12, and the first piston 12 is close to the inner wall of the third observation window 10. The first piston 12 can contact the third observation window 10, so as to facilitate the observation of whether air is discharged into the third observation window 10. A water outlet 9 with a valve is provided on the upper side of the second observation window 8, and a water inlet 11 with a valve is provided on the upper side of the second observation window 8.

[0027] The water inlet end of the water inlet 11 is connected to a water pipe 13, and the end of the water pipe 13 away from the water inlet 11 is connected to a water pump 14, and the fixed end of the water pump 14 is fixedly connected to a water tank 15. The side of the outer shell 7 is installed with a first observation window 6 for assisting the air tightness detection of the automobile pipeline body 4, and the inside of the outer shell 7 is fixedly connected to a telescopic rod 19, and the extended end of the telescopic rod 19 is fixedly connected to a second piston 20 that is slidably connected to the outer shell 7, and the second piston 20 is close to the outer shell 7 and the inner wall of the first observation window 6 A second plugging piece 16 is installed at one end of the automobile pipeline away from the gas transmission pipe 3, and a pressure detector 17 is installed on the upper side of the second plugging piece 16. After the automobile pipeline body 4 is deflated and depressurized, the telescopic rod 19 is started to drive the second piston 20 to move to squeeze the water, and the humidity sensor 13 is observed to sense whether there is water seepage inside the automobile pipeline body 4 and detect the air tightness of the automobile pipeline body 4. A humidity sensor 18 for air tightness detection of the automobile pipeline body 4 is installed on the side of the second plugging piece 16.

[0028] All structures and instruments are heat-resistant and waterproof.

[0029] The air pump 2, water pump 14, pressure detector 17, humidity sensor 18 and telescopic rod 19 are all conventional instruments. Their working principles, sizes and models are irrelevant to the functions of the present application, so they will not be described in detail. They are all controlled by a remote control switch. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present utility model is mainly used to protect mechanical devices, so the present utility model will no longer explain the control method and circuit connection in detail.

[0030] How it works

[0031] During use, the automobile pipeline air tightness detection device is installed in the outer shell 7, the automobile pipeline body 4 is blocked by the first blocking member 5 and the second blocking member 16, the first piston 12 is moved to the bottom side of the third observation window 10, the water pump 14 is started to transport the water in the water tank 15 to the water inlet pipe 13, and the water is transported to the water inlet 11 through the water pipe 13. After the water overflows the water outlet 9, the valves on the sides of the water inlet 11 and the water outlet 9 are rotated, and the air pump 2 is started to transport the air in the compressed gas tank 1 to the automobile pipeline body 4, the pressure detector 17 and the third observation window 10 are observed to detect the air tightness of the automobile pipeline body 4, and after the automobile pipeline body 4 is deflated and depressurized, the telescopic rod 19 is started to drive the second piston 20 to move to squeeze the water, and the humidity sensor 13 is observed to detect the air tightness of the automobile pipeline body 4.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An automobile pipeline air tightness detection device, comprising an automobile pipeline body (4), characterized in that: The side of the automobile pipeline body (4) is connected to an air supply pipe (3) for assisting the air tightness detection of the automobile pipeline body (4); the end of the air supply pipe (3) away from the automobile pipeline is connected to an air pump (2); the fixed end of the air pump (2) is fixedly connected to a compressed air tank (1); the side of the automobile pipeline body (4) is installed with a first blocking member (5); the side of the first blocking member (5) is installed with an outer shell (7); the upper side of the outer shell (7) is installed with a second observation window (8); the upper side of the second observation window (8) is installed with a third observation window (10) for assisting the air tightness detection of the automobile pipeline body (4); the interior of the third observation window (10) is slidably connected with a first piston (12).

2. The automobile pipeline air tightness detection device according to claim 1, characterized in that: A water outlet (9) with a valve is provided on the upper side of the second observation window (8), and a water inlet (11) with a valve is provided on the upper side of the second observation window (8).

3. The automobile pipeline air tightness detection device according to claim 2, characterized in that: The water inlet end of the water inlet (11) is connected to a water delivery pipe (13), and the end of the water delivery pipe (13) away from the water inlet (11) is connected to a water pump (14).

4. The automobile pipeline air tightness detection device according to claim 3 is characterized in that: The fixed end of the water pump (14) is fixedly connected to a water tank (15), and the side of the outer shell (7) is provided with a first observation window (6) for assisting in the air tightness detection of the automobile pipeline body (4).

5. The automobile pipeline air tightness detection device according to claim 4, characterized in that: A telescopic rod (19) is fixedly connected to the interior of the outer shell (7), and a second piston (20) which is slidably connected to the outer shell (7) is fixedly connected to the extended end of the telescopic rod (19).

6. The automobile pipeline air tightness detection device according to claim 5, characterized in that: A second blocking member (16) is installed at one end of the automobile pipeline away from the gas delivery pipe (3), and a pressure detector (17) is installed on the upper side of the second blocking member (16).

7. The automobile pipeline air tightness detection device according to claim 6, characterized in that: A humidity sensor (18) for detecting the air tightness of the automobile pipeline body (4) is installed on the side of the second blocking member (16).

Images