Air tightness detection device for automobile air inlet pipe
By designing the threaded barrel and bent rod structure of the positioning device, the problem of gas leakage caused by loose connection between the intake pipe and the detection device was solved, and stable air tightness detection was achieved.
Patent Information
- Application Number
- CN202422860091.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Moving the intake pipe being tested during the test process may cause the connection between the intake pipe and the gas pipe of the test device to loosen, resulting in gas leakage and affecting the test process.
A vehicle intake pipe air tightness detection device is designed, which includes a positioning device. By rotating the threaded barrel to control the movement of the screw, the bending rod and the pressure block are driven to reinforce the detection pipe mouth and the connecting pipe to prevent the connection from loosening.
It effectively avoids the loosening of the air intake pipe and the connecting pipe during the detection process, ensures the stability and accuracy of the detection, prevents gas leakage, and improves the detection efficiency.
Smart Images
Figure CN223412916U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of detection devices, in particular to an automobile intake pipe air tightness detection device. Background Art
[0002] The air tightness test of automobile intake pipe is an important part of ensuring the sealing performance of automobile intake system. It is mainly used to detect whether the intake pipe has sufficient sealing to prevent air leakage and affect engine performance. During the test, the air supply pipe of the detection device is connected to the intake pipe, and the parameters fed back by the detection device are observed to determine whether there is leakage in the intake pipe.
[0003] When using a detection device to test the air tightness of the intake pipe, connect one end of the air pipe of the detection device to the pipe mouth of the intake pipe, apply pressure to the inside of the intake pipe through the detection device, and observe the air pressure changes inside the intake pipe for detection. Moving the inspected intake pipe for observation during the detection process may cause the connection between the intake pipe and the air supply pipe of the detection device to loosen, causing the intake pipe to fall off the outer surface of the air supply pipe, causing gas leakage, and affecting the detection process. Utility Model Content
[0004] The utility model aims to solve the problem that when the intake pipe being inspected is moved for observation during the inspection process, the connection between the intake pipe and the air supply pipe of the inspection device may become loose, causing the intake pipe to fall off the outer surface of the air supply pipe and cause gas leakage, thereby affecting the inspection process. A vehicle intake pipe air tightness inspection device is proposed.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vehicle intake pipe air tightness detection device, comprising a body, one end of the body is provided with an air supply pipe, one end of the air supply pipe is provided with a connecting pipe, the outer surface of the connecting pipe is provided with a positioning device, the positioning device comprises two rectangular rods, one end of the two rectangular rods is fixedly connected to one side of the connecting pipe, the two rectangular rods are rotatably connected to a threaded barrel on one side close to each other, the upper and lower ends of the inner wall of the threaded barrel are respectively threadedly connected with screws, the outer surfaces of the two screws have opposite thread directions, one end of the screw is fixedly connected to a bent rod, one end of the bent rod slides on one side of the rectangular rod, one side of the bent rod is fixedly connected to a round rod, and one end of the round rod is fixedly connected to a pressure block.
[0006] The effect achieved by the above components is: by setting a pressure block, when using the air tightness detection device to perform air tightness detection on the automobile intake pipe, the pipe mouth of the automobile intake pipe to be detected is connected to the connecting pipe, and the threaded barrel in the middle of the two rectangular rods is pushed to rotate, so that the two screws move in the same direction on the inner wall of the threaded barrel, driving one end of the two bent rods to slide on one side of the rectangular rod, so that the outer surfaces of the two bent rods are close to each other through the pressure blocks fixed by the round rods, and the sides of the two pressure blocks that are close to each other are respectively pressed tightly on the outside of the connection between the detection pipe mouth and the connecting pipe, and the connection between the detection pipe mouth and the connecting pipe is reinforced, and then the remaining pipe mouths of the intake pipe are closed, and the operating body pressurizes the inside of the intake pipe through the air supply pipe, and observes the parameters on the display screen on one side of the body to determine whether there is air leakage in the intake pipe, and then each pipe mouth is tested in turn.
[0007] Preferably, a plurality of anti-slip strips are fixedly connected to one side of the pressing block, and the anti-slip strips are made of rubber material.
[0008] The effect achieved by the above components is: by setting the anti-slip strip made of rubber material, the friction force between the side of the pressure block with the anti-slip strip and the outer surface of the pipe mouth can be increased when it is pressed against the outer surface of the pipe mouth, making the position of the pressure block on the pipe mouth more stable.
[0009] Preferably, one side of the round rod is fixedly connected to an oblique rod, and one end of the oblique rod away from the round rod is fixedly connected to one side of the pressing block.
[0010] The effect achieved by the above components is: by setting the oblique rod, the connection between the round rod and the pressure block can be reinforced, and the pressure block of the positioning device can be prevented from being subjected to force on the side away from the round rod for a long time, resulting in deflection and fracture of the connection with the round rod.
[0011] Preferably, two positioning blocks are fixedly connected to the outer surface of the bending rod, and one side of the two positioning blocks slides on the outer surface of the rectangular rod.
[0012] The effect achieved by the above components is: when the threaded barrel is pushed to rotate so that the two screws drive the bending rod to move, the two positioning blocks on the outer surface of the bending rod will slide on the outer surface of the rectangular rod, further limiting the angle between the bending rod and the rectangular rod, and avoiding the angle of the bending rod from being deflected as much as possible.
[0013] Preferably, a plurality of convex strips are fixedly connected to the outer surface of the threaded barrel, and the convex strips are distributed in a circular pattern on the outer surface of the threaded barrel.
[0014] The above components have the following effects: pressing the ridges on the outer surface of the threaded barrel with your hand can increase the friction between the hand and the outer surface of the threaded barrel, making it easier to rotate the threaded barrel without slipping.
[0015] Preferably, an auxiliary device is provided at the top of the body, and the auxiliary device includes two pull rods, one end of the two pull rods is rotatably connected to two sliders, the outer surface of the pull rod is provided with a through groove, and the top of the body is provided with a rectangular groove, and the two sliders slide on both sides of the inner wall of the rectangular groove respectively.
[0016] The effect achieved by the above-mentioned components is: when carrying the detection device, you can hold the through grooves on the outer surfaces of the two pull rods and pull the two pull rods through the two sliders at one end to slide on both sides of the inner wall of the rectangular groove, so that the two pull rods are close to each other and tilted upward at a certain angle. Holding the through grooves on the outer surfaces of the two pull rods can make it more convenient to lift the body for carrying, thereby improving the convenience when using the detection device. When using or storing the detection device, you can push the two pull rods away from each other and make the pull rods fit against the inner wall of the rectangular groove to facilitate the storage of the entire device.
[0017] Preferably, a pad is fixedly connected to one side of the inner wall of the through groove, and the pad is made of rubber.
[0018] The effect achieved by the above components is: by providing the rubber pad, the hand is not easily injured by the inner wall edge of the through groove when holding it, and the hand is not easily slipped when holding the outer surface of the pull rod.
[0019] Preferably, one end of the pull rod is fixedly connected to two positioning rods, and the two positioning rods are magnetic rods with a certain magnetism.
[0020] The effect achieved by the above components is that when the pull rod is pushed to retract into the rectangular groove, one side of the two positioning rods at one end of the pull rod will contact the inner wall of the rectangular groove and be magnetically attracted, further limiting the position of the pull rod inside the rectangular groove.
[0021] Compared with the prior art, the advantages and positive effects of the present invention are:
[0022] In the utility model, a positioning device is provided, and the positions of the two pressure blocks are adjusted by rotating the threaded barrel to control the movement of the two screws and drive the bending rod to move, so that the sides of the two pressure blocks close to each other are respectively pressed tightly on the outer side of the connection between the detection pipe mouth and the connecting pipe, thereby reinforcing the connection between the detection pipe mouth and the connecting pipe, and avoiding as much as possible the loosening of the connection between the detection pipe mouth and the connecting pipe during the detection process, which affects the detection process. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the body of the utility model;
[0025] Figure 3 For this utility model Figure 2 A schematic diagram of a partially enlarged three-dimensional structure at point A;
[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the screw rod of the utility model.
[0027] Legend: 1. Machine body; 2. Positioning device; 3. Auxiliary device; 4. Air pipe; 5. Connecting pipe; 21. Rectangular rod; 22. Threaded barrel; 23. Screw; 24. Bending rod; 25. Round rod; 26. Pressing block; 27. Anti-slip strip; 28. Oblique rod; 29. Positioning block; 210. Raised strip; 31. Rectangular groove; 32. Slider; 33. Pull rod; 34. Through groove; 35. Pad; 36. Positioning rod. DETAILED DESCRIPTION
[0028] Example 1, as Figure 1-4 As shown, a vehicle intake pipe air tightness detection device includes a body 1, an air delivery pipe 4 is provided at one end of the body 1, a connecting pipe 5 is provided at one end of the air delivery pipe 4, and a positioning device 2 is provided on the outer surface of the connecting pipe 5. The positioning device 2 includes two rectangular rods 21, one end of the two rectangular rods 21 is fixedly connected to one side of the connecting pipe 5, and the two rectangular rods 21 are rotatably connected to the side close to each other with a threaded barrel 22, and the upper and lower ends of the inner wall of the threaded barrel 22 are respectively threadedly connected with screws 23, and the outer surfaces of the two screws 23 are fixed to the outer surfaces of the two screws 23. The thread directions of the two surfaces are opposite, one end of the screw 23 is fixedly connected to a bent rod 24, one end of the bent rod 24 slides on one side of the rectangular rod 21, one side of the bent rod 24 is fixedly connected to a round rod 25, one end of the round rod 25 is fixedly connected to a pressing block 26. By setting the pressing block 26, when the air tightness detection device is used to detect the air tightness of the automobile intake pipe, the pipe mouth of the automobile intake pipe to be detected is connected to the connecting pipe 5, and the threaded barrel 22 between the two rectangular rods 21 is pushed to rotate, so that the two screws 23 are screwed in the threaded barrel. The inner wall of the cylinder 22 moves in the same direction, driving one end of the two bent rods 24 to slide on one side of the rectangular rod 21, so that the outer surfaces of the two bent rods 24 are close to each other through the pressure blocks 26 fixed by the round rod 25, and the sides of the two pressure blocks 26 close to each other are respectively pressed against the outer side of the connection between the detection pipe mouth and the connecting pipe 5, thereby strengthening the connection between the detection pipe mouth and the connecting pipe 5, and then the other pipe mouths of the air intake pipe are closed, and the operating body 1 pressurizes the inside of the air intake pipe through the air supply pipe 4, and observes the parameters on the display screen on one side of the body 1 to determine whether there is air leakage in the air intake pipe, and then tests each pipe mouth in turn. By setting the positioning device 2, the two screws 23 are controlled to move by rotating the threaded cylinder 22 to drive the bent rod 24 to move and adjust the position of the two pressure blocks 26, so that the sides of the two pressure blocks 26 close to each other are respectively pressed against the outer side of the connection between the detection pipe mouth and the connecting pipe 5, thereby strengthening the connection between the detection pipe mouth and the connecting pipe 5, and avoiding as much as possible the loosening of the connection between the detection pipe mouth and the connecting pipe 5 during the detection process, thereby affecting the detection process.
[0029] Reference Figure 2-4 As shown, in this embodiment: one side of the pressing block 26 is fixedly connected with a plurality of anti-slip strips 27, and the anti-slip strips 27 are made of rubber material. By providing the anti-slip strips 27 made of rubber material, the friction force between the side of the pressing block 26 provided with the anti-slip strips 27 and the outer surface of the pipe mouth can be increased when it is pressed on the outer surface of the pipe mouth, so that the position of the pipe mouth fixed by the pressing block 26 is more stably fixed, and one side of the round rod 25 is fixedly connected with an inclined rod 28, and the end of the inclined rod 28 away from the round rod 25 is fixedly connected to one side of the pressing block 26. By providing the inclined rod 28, the connection between the round rod 25 and the pressing block 26 can be reinforced, and the long-term use of the positioning device 2 The pressure block 26 is subjected to force on the side away from the round rod 25, which causes the connection with the round rod 25 to be deflected and broken.
[0030] Reference Figure 2-4 As shown, in this embodiment: the outer surface of the bending rod 24 is fixedly connected to two positioning blocks 29, one side of the two positioning blocks 29 slides on the outer surface of the rectangular rod 21, and the threaded barrel 22 is pushed to rotate so that the two screws 23 drive the bending rod 24 to move, and the two positioning blocks 29 on the outer surface of the bending rod 24 will slide on the outer surface of the rectangular rod 21, further limiting the angle between the bending rod 24 and the rectangular rod 21, and avoiding the angle of the bending rod 24 from being deflected as much as possible. The outer surface of the threaded barrel 22 is fixedly connected to a plurality of ridges 210, and the ridges 210 are distributed in a circular shape on the outer surface of the threaded barrel 22. Pressing the ridges 210 on the outer surface of the threaded barrel 22 with your hand can increase the friction when the hand contacts the outer surface of the threaded barrel 22, making it more convenient to push the threaded barrel 22 to rotate and not easy to slip.
[0031] With reference to Figure 1-2, in this embodiment: an auxiliary device 3 is provided at the top of the body 1, and the auxiliary device 3 includes two pull rods 33, one end of the two pull rods 33 is rotatably connected to two sliders 32, and a through groove 34 is provided on the outer surface of the pull rod 33. A rectangular groove 31 is provided at the top of the body 1, and the two sliders 32 slide on both sides of the inner wall of the rectangular groove 31 respectively. When carrying the detection device, you can hold the through groove 34 on the outer surface of the two pull rods 33 and pull the two pull rods 33 through the two sliders 32 at one end to slide on both sides of the inner wall of the rectangular groove 31, so that the two pull rods 33 are close to each other and tilted upward at a certain angle. Holding the through groove 34 on the outer surface of the two pull rods 33 can make it more convenient to lift the body 1 for carrying, thereby improving the convenience when using the detection device. When using or storing the detection device, you can push the two pull rods 33 away from each other, and make the pull rods 33 fit against the inner wall of the rectangular groove 31 for easy storage of the storage device as a whole.
[0032] Referring to Figure 1-2, in this embodiment: a padding strip 35 is fixedly connected to one side of the inner wall of the through groove 34, and the padding strip 35 is made of rubber. By providing the rubber padding strip 35, the hand is not easily hurt by the inner wall edge of the through groove 34 when holding the through groove 34, and the hand is not easy to slip when holding the outer surface of the pull rod 33. One end of the pull rod 33 is fixedly connected to two positioning rods 36, and the two positioning rods 36 are magnetic rods with a certain magnetism. When the pull rod 33 is pushed to retract the pull rod 33 into the inside of the rectangular groove 31, one side of the two positioning rods 36 at one end of the pull rod 33 will contact the inner wall of the rectangular groove 31 and be magnetically attracted, further limiting the position of the pull rod 33 inside the rectangular groove 31.
[0033] Working principle: When using the detection device, you can first hold the through grooves 34 on the outer surfaces of the two pull rods 33 and pull the two pull rods 33 to slide on both sides of the inner wall of the rectangular groove 31 through the two sliders 32 at one end, so that the two pull rods 33 are close to each other and tilted upward at a certain angle. Holding the through grooves 34 on the outer surfaces of the two pull rods 33 makes it easier to lift the body 1 for carrying. Then, place the body 1 on the ground, connect the pipe mouth of the automobile intake pipe for inspection with the connecting pipe 5, push the threaded barrel 22 in the middle of the two rectangular rods 21 to rotate, so that the two screws 23 move in the same direction on the inner wall of the threaded barrel 22, driving one end of the two bent rods 24 to move in the rectangular rod 21. Slide on one side of the body 1, so that the outer surfaces of the two bent rods 24 are close to each other through the pressure blocks 26 fixed by the round rods 25, and the sides of the two pressure blocks 26 close to each other are respectively pressed against the outside of the connection between the detection pipe mouth and the connecting pipe 5 to reinforce the connection between the detection pipe mouth and the connecting pipe 5. Then, the remaining pipe mouths of the air intake pipe are closed, and the operating body 1 pressurizes the inside of the air intake pipe through the air supply pipe 4. Observe the parameters on the display screen on one side of the body 1 to determine whether there is an air leakage in the air intake pipe. After the test is completed, rotate the threaded barrel 22 to make the two screws 23 drive the two pressure blocks 26 away from each other to release the position fixation of the pipe mouth and the connecting pipe 5. Then remove the pipe mouth and test each pipe mouth in turn.
Claims
1. A vehicle intake pipe air tightness detection device, comprising a body (1), characterized in that: An air delivery pipe (4) is provided at one end of the machine body (1), a connecting pipe (5) is provided at one end of the air delivery pipe (4), and a positioning device (2) is provided on the outer surface of the connecting pipe (5), and the positioning device (2) comprises two rectangular rods (21), one end of the two rectangular rods (21) is fixedly connected to one side of the connecting pipe (5), and the two rectangular rods (21) are rotatably connected to a threaded barrel (22) on one side close to each other, and the upper and lower ends of the inner wall of the threaded barrel (22) are respectively threadedly connected to screw rods (23), and the outer surfaces of the two screw rods (23) have opposite thread directions, and one end of the screw rod (23) is fixedly connected to a bending rod (24), and one end of the bending rod (24) slides on one side of the rectangular rod (21), and one side of the bending rod (24) is fixedly connected to a round rod (25), and one end of the round rod (25) is fixedly connected to a pressing block (26).
2. The vehicle intake pipe air tightness detection device according to claim 1, characterized in that: One side of the pressing block (26) is fixedly connected to a plurality of anti-slip strips (27), and the anti-slip strips (27) are made of rubber material.
3. The vehicle intake manifold air tightness detection device according to claim 2, characterized in that: One side of the round rod (25) is fixedly connected to an inclined rod (28), and one end of the inclined rod (28) away from the round rod (25) is fixedly connected to one side of the pressing block (26).
4. The vehicle intake pipe air tightness detection device according to claim 3, characterized in that: Two positioning blocks (29) are fixedly connected to the outer surface of the bending rod (24), and one side of the two positioning blocks (29) slides on the outer surface of the rectangular rod (21).
5. The vehicle intake pipe air tightness detection device according to claim 4, characterized in that: A plurality of convex strips (210) are fixedly connected to the outer surface of the threaded barrel (22), and the convex strips (210) are distributed in a circular pattern on the outer surface of the threaded barrel (22).
6. The vehicle intake pipe air tightness detection device according to claim 5, characterized in that: An auxiliary device (3) is provided at the top of the machine body (1), and the auxiliary device (3) includes two pull rods (33). One end of the two pull rods (33) is rotatably connected to two sliders (32). A through groove (34) is provided on the outer surface of the pull rod (33). A rectangular groove (31) is provided at the top of the machine body (1), and the two sliders (32) slide on both sides of the inner wall of the rectangular groove (31).
7. The vehicle intake pipe air tightness detection device according to claim 6, characterized in that: A pad strip (35) is fixedly connected to one side of the inner wall of the through groove (34), and the pad strip (35) is made of rubber material.
8. The vehicle intake manifold air tightness detection device according to claim 7, characterized in that: One end of the pull rod (33) is fixedly connected to two positioning rods (36), and the two positioning rods (36) are magnetic rods with a certain magnetism.