Ventilation pipe looseness detection device

Abstract

The utility model provides a breather pipe looseness detection device, which comprises a clamp mother board, a clamp daughter board, a positioning assembly, a fixing assembly, a magnetic ring cylinder and an alarm assembly, the clamp daughter board is arranged above the clamp mother board and is connected with the clamp mother board through a plurality of support columns, the magnetic ring cylinder is arranged on one side of the clamp daughter board and is arranged on the clamp mother board, and the alarm assembly is arranged on the clamp daughter board. The telescopic end of the magnetic ring air cylinder is arranged upwards, a positioning assembly used for positioning a crankcase placed on the clamp daughter board is arranged on the clamp daughter board, when the crankcase is placed on the clamp daughter board, a breather pipe of the crankcase is located over the telescopic end of the magnetic ring air cylinder through positioning of the positioning assembly, and the fixing assembly is arranged on the clamp mother board. The alarm assembly is arranged on the clamp mother plate and connected with the magnetic ring air cylinder. According to the utility model, the looseness of the breather pipe is checked through a mechanical device, whether the breather pipe is loosened can be accurately checked, and false detection or missing detection is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of engine technology, and in particular relates to a device for detecting loose air pipes. Background Technology

[0002] When the engine is running, gases from the cylinders leak into the crankcase, especially after parts such as cylinder liners, pistons, and piston rings wear down, making the leakage more severe. These gases may contain fuel vapor, water vapor, and acidic substances produced during combustion, which can accelerate the deterioration of the lubricating oil and even dilute it, thus affecting lubrication and increasing wear and corrosion of engine parts. The crankcase vent pipe's function is to expel these harmful gases, keeping the lubricating oil clean and maintaining its stable performance.

[0003] Some crankcases and vent pipes are connected via an interference fit. In this method, the diameter of the crankcase vent hole is slightly smaller than the diameter of the vent pipe. The vent pipe is pressed into the crankcase vent hole to achieve the interference fit. After connection, the frictional resistance between the vent pipe and the crankcase vent hole prevents the vent pipe from loosening on the crankcase. However, when the dimensions of the crankcase vent hole and the vent pipe do not meet the interference fit requirements (i.e., the diameter of the crankcase vent hole is greater than or equal to the diameter of the vent pipe), installation defects such as loosening or even detachment of the vent pipe may occur. Currently, most methods involve manually rotating or pulling the vent pipe to initially check for installation defects. However, this method is labor-intensive, contains uncertainties, and is easily affected by subjective factors, leading to missed or false detections. Utility Model Content

[0004] The purpose of this invention is to provide a ventilation tube loosening detection device, which uses a mechanical device to check for ventilation tube loosening, accurately checking whether the ventilation tube is loose and avoiding false detection or missed detection.

[0005] This utility model is achieved through the following technical solution:

[0006] A vent pipe loosening detection device includes a clamp mother plate, a clamp daughter plate, a positioning component, a fixing component, a magnetic ring cylinder, and an alarm component. The clamp daughter plate is located above the clamp mother plate and is connected to the clamp mother plate through multiple support columns. The magnetic ring cylinder is located on one side of the clamp daughter plate and is mounted on the clamp mother plate, with its telescopic end facing upwards. The clamp daughter plate is provided with a positioning component for positioning a crankcase placed on the clamp daughter plate. When the crankcase is placed on the clamp daughter plate, the positioning component positions the crankcase's vent pipe directly above the telescopic end of the magnetic ring cylinder. The fixing component is mounted on the clamp mother plate to press the crankcase firmly onto the clamp daughter plate. The alarm component is mounted on the clamp mother plate and is connected to the magnetic ring cylinder.

[0007] Furthermore, the magnetic ring cylinder includes a cylinder barrel, a piston, a push rod, a magnetic ring, and a magnetic ring sensing device. A sliding groove is provided inside the cylinder barrel, and a front end cover and a rear end cover are respectively provided at both ends of the cylinder barrel. The piston is slidably disposed in the sliding groove, the push rod is disposed on the piston and passes through the front end cover, the magnetic ring is disposed on the piston, and the magnetic ring sensing device is disposed on the end of the movable groove near the front end cover. The magnetic ring sensing device is connected to the alarm component.

[0008] Furthermore, the telescopic end of the magnetic ring cylinder is equipped with a ejector pin, which is made of a soft material.

[0009] Furthermore, the fixing assembly includes multiple telescopic cylinders, which are arranged circumferentially along the clamp subplate and fixed on the clamp mother plate. The telescopic end of the telescopic cylinder is hinged with a gripper, and a fixing rod is hinged on the gripper. The fixing rod is hinged to the cylinder body of the telescopic cylinder.

[0010] Furthermore, the top of the telescopic cylinder is provided with a fixed seat, and the fixed seat has a through hole for the telescopic end of the telescopic cylinder to pass through. The fixed rod is hinged to the fixed seat.

[0011] Furthermore, the fixed base is provided with a fixed protrusion, and the number of fixed rods hinged to the jaws is two. The two fixed rods are located on both sides of the jaws and are respectively hinged to both sides of the fixed protrusion.

[0012] Furthermore, there are multiple clamping subplates, and the positioning components on the multiple clamping subplates are used to position different models of crankcases. Each clamping subplate can be selectively mounted on multiple support columns.

[0013] Furthermore, the alarm component is equipped with a reset button.

[0014] Compared with the existing technology, the beneficial effects of this utility model are as follows: the air pipe loosening inspection is completed by a mechanical device. The magnetic ring cylinder outputs a fixed torque to push the crankcase air pipe, simulating the process of manually prying the crankcase air pipe. This can accurately check whether the air pipe is loose, reduce false detections caused by human factors, and reduce labor costs. When the inspection fails, an alarm component will be triggered to issue an alarm signal, ensuring that every unqualified air pipe is noticed and avoiding missed detections. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the ventilation tube loosening detection device of this utility model;

[0016] Figure 2 This is a cross-sectional view of the magnetic ring cylinder in the ventilation tube loosening detection device of this utility model;

[0017] In the diagram, 1-clamp mother plate, 2-clamp daughter plate, 3-fixing component, 31-telescopic cylinder, 32-gripper, 33-fixing rod, 34-fixing seat, 35-fixing protrusion, 4-magnetic ring cylinder, 41-cylinder barrel, 42-piston, 43-push rod, 44-magnetic ring, 45-magnetic ring sensing device, 46-sliding groove, 47-front end cover, 48-rear end cover, 5-alarm component, 51-reset button, 6-support column, 7-positioning component, 8-ejector pin, 9-crankcase, 10-vent pipe. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] 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.

[0022] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the ventilation pipe loosening detection device of this utility model. A ventilation pipe loosening detection device includes a clamp mother plate 1, a clamp daughter plate 2, a positioning component 7, a fixing component 3, a magnetic ring cylinder 4, and an alarm component 5. The clamp daughter plate 2 is located above the clamp mother plate 1 and is connected to the clamp mother plate 1 through multiple support columns 6. The magnetic ring cylinder 4 is located on one side of the clamp daughter plate 2 and is mounted on the clamp mother plate 1, with its extension end facing upwards. The clamp daughter plate 2 is provided with a positioning component 7 for positioning a crankcase 9 placed on the clamp daughter plate 2. When the crankcase 9 is placed on the clamp daughter plate 2, the positioning component 7 positions the ventilation pipe 10 of the crankcase 9 directly above the extension end of the magnetic ring cylinder 4. The fixing component 3 is mounted on the clamp mother plate 1 and is used to press the crankcase 9 tightly onto the clamp daughter plate 2. The alarm component 5 is mounted on the clamp mother plate 1 and connected to the magnetic ring cylinder 4.

[0024] In use, the crankcase 9 is placed on the fixture plate 2, and the crankcase 9 is positioned by the positioning component 7 so that the crankcase 9 vent pipe 10 is directly above the telescopic end of the magnetic ring cylinder 4. Then, the crankcase 9 is pressed down by the fixing component 3 to prevent it from moving during the test. Then, the magnetic ring cylinder 4 drives its telescopic end to move upward until it contacts the vent pipe 10. When the vent pipe 10 is properly installed and not loose, the telescopic end of the magnetic ring cylinder 4 stops due to resistance and cannot reach its maximum stroke. Therefore, it does not send an electrical signal to the alarm component 5, and the alarm component 5 does not issue an alarm signal. When the vent pipe 10 is loose, the telescopic end of the magnetic ring cylinder 4 continues to move upward after contacting the vent pipe 10. When the magnetic ring cylinder 4 reaches its maximum stroke, it sends an electrical signal to the alarm component 5, causing the alarm component 5 to issue an alarm signal to remind the operator. This invention uses a mechanical device to check for looseness of the vent pipe 10. The magnetic ring cylinder 4 outputs a fixed torque to push the vent pipe 10 of the crankcase 9, simulating the process of manually prying the vent pipe 10 of the crankcase 9. This can accurately check whether the vent pipe 10 is loose, reduce false detections caused by human factors, and reduce labor costs. When the inspection fails, the alarm component 5 is triggered, and an alarm signal is issued through the alarm component 5, ensuring that every vent pipe 10 that fails the inspection is noticed and avoiding missed detections.

[0025] In one embodiment, the magnetic ring cylinder 4 includes a cylinder barrel 41, a piston 42, a push rod 43, a magnetic ring 44, and a magnetic ring sensing device 45. The cylinder barrel 41 has a sliding groove 46. A front end cover 47 and a rear end cover 48 are respectively provided at both ends of the cylinder barrel 41. The piston 42 is slidably disposed within the sliding groove 46. The push rod 43 is disposed on the piston 42 and passes through the front end cover 47. The magnetic ring 44 is disposed on the piston 42. The magnetic ring sensing device 45 is disposed at the end of the movable groove near the front end cover 47 and is connected to the alarm component 5. The front end cover 47 has an exhaust channel, and the rear end cover 48 has an intake channel. Air intake through the intake channels pushes the piston 42 upward, causing the push rod 43 to move upward. When the piston 42 moves upward to the position of the magnetic ring sensing device 45, the magnetic ring cylinder 4 reaches its maximum stroke. The magnetic ring 44 contacts the magnetic ring sensing device 45, and the magnetic ring sensing device 45 senses the magnetic ring 44 and sends an electrical signal to the alarm component 5, causing the alarm component 5 to issue an alarm signal. In one embodiment, the alarm component 5 is provided with a reset button 51. When the alarm component 5 issues an alarm signal, the reset button 51 needs to be manually pressed to cancel the alarm signal, which further ensures that every unqualified ventilation tube 10 can be noticed and avoids missed detection.

[0026] In one embodiment, a pin 8 is provided on the telescopic end of the magnetic ring cylinder 4. The pin 8 is made of a soft material. The pin 8 can extend the working range of the telescopic end of the magnetic ring cylinder 4, and the soft material of the pin 8 makes it less likely to scratch the vent pipe 10. Copper is preferably the material used to make the pin 8.

[0027] In one embodiment, the fixing assembly 3 includes multiple telescopic cylinders 31, which are arranged circumferentially along the fixture sub-plate 2 and fixed to the fixture mother plate 1. A gripper 32 is hinged to the telescopic end of each telescopic cylinder 31, and a fixing rod 33 is hinged to the gripper 32. The fixing rod 33 is hinged to the cylinder body of the telescopic cylinder 31. When the crankcase 9 is placed on the fixture sub-plate 2 and needs to be fixed, the telescopic end of the telescopic cylinder 31 extends, causing one end of the gripper 32 to rise, so that the other end of the gripper 32 rotates from top to bottom and presses against the crankcase 9, thus pressing the crankcase 9 firmly onto the fixture sub-plate 2. After the inspection is completed, the telescopic end of the telescopic cylinder 31 shortens, causing one end of the gripper 32 to lower, so that the other end of the gripper 32 rotates from bottom to top and disengages from the crankcase 9. At this time, the crankcase 9 can be removed from the fixture sub-plate 2. In one embodiment, the top of the telescopic cylinder 31 is provided with a fixed seat 34, and the fixed seat 34 has a through hole for the telescopic end of the telescopic cylinder 31 to pass through. The fixed rod 33 is hinged to the fixed seat 34. In another embodiment, the fixed seat 34 is provided with a fixed protrusion 35, and the number of fixed rods 33 hinged to the gripper 32 is two. The two fixed rods 33 are located on both sides of the gripper 32 and are respectively hinged to both sides of the fixed protrusion 35. The position of the gripper 32 is limited by the two fixed rods 33 to ensure that the gripper 32 can rotate smoothly in the vertical direction. The fixed seat 34 and the fixed protrusion 35 are provided to facilitate the installation of the fixed rods 33.

[0028] In one embodiment, there are multiple clamping subplates 2, and positioning components 7 on the multiple clamping subplates 2 are used to position different models of crankcases 9. Each clamping subplate 2 can be selectively mounted on multiple support columns 6. By replacing different clamping subplates 2 to adapt to different models of crankcases 9, the looseness detection of the vent pipe 10 of different models of crankcases 9 can be quickly achieved. In one embodiment, the positioning component 7 includes multiple positioning pins. The positions of the multiple positioning pins are set according to the internal space of different models of crankcases 9, thereby positioning the crankcase 9 on the clamping subplate 2 by the multiple positioning pins.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A device for detecting loose air tubes, characterized in that, The device includes a clamp mother plate, a clamp daughter plate, a fixing assembly, a magnetic ring cylinder, and an alarm assembly. The clamp daughter plate is located above the clamp mother plate and is connected to the clamp mother plate via multiple support columns. The magnetic ring cylinder is located on one side of the clamp daughter plate and is mounted on the clamp mother plate, with its telescopic end facing upwards. The clamp daughter plate is equipped with a positioning assembly for positioning a crankcase placed on the clamp daughter plate. When the crankcase is placed on the clamp daughter plate, the positioning assembly positions the crankcase's vent pipe directly above the telescopic end of the magnetic ring cylinder. The fixing assembly is mounted on the clamp mother plate and is used to press the crankcase firmly onto the clamp daughter plate. The alarm assembly is mounted on the clamp mother plate and is connected to the magnetic ring cylinder.

2. The ventilation tube loosening detection device according to claim 1, characterized in that, The magnetic ring cylinder includes a cylinder barrel, a piston, a push rod, a magnetic ring, and a magnetic ring sensing device. The cylinder barrel has a sliding groove, and a front end cover and a rear end cover are respectively provided at both ends of the cylinder barrel. The piston is slidably disposed in the sliding groove. The push rod is disposed on the piston and passes through the front end cover. The magnetic ring is disposed on the piston. The magnetic ring sensing device is disposed at the end of the movable groove near the front end cover. The magnetic ring sensing device is connected to an alarm component.

3. The ventilation tube loosening detection device according to claim 1, characterized in that, The telescopic end of the magnetic ring cylinder is equipped with a push pin, which is made of soft material.

4. The ventilation tube loosening detection device according to claim 1, characterized in that, The fixing assembly includes multiple telescopic cylinders, which are arranged circumferentially along the clamp subplate and fixed to the clamp mother plate. The telescopic end of each telescopic cylinder is hinged with a gripper, and a fixing rod is hinged to the gripper. The fixing rod is hinged to the cylinder body of the telescopic cylinder.

5. The ventilation tube loosening detection device according to claim 4, characterized in that, The top of the telescopic cylinder is provided with a fixed seat, and the fixed seat has a through hole for the telescopic end of the telescopic cylinder to pass through. The fixed rod is hinged to the fixed seat.

6. The ventilation tube loosening detection device according to claim 5, characterized in that, The fixed base is provided with a fixed protrusion, and the number of fixed rods hinged to the jaws is two. The two fixed rods are located on both sides of the jaws and are respectively hinged to both sides of the fixed protrusion.

7. The ventilation tube loosening detection device according to claim 1, characterized in that, The number of clamp subplates is multiple, and the positioning components on the multiple clamp subplates are used to position crankcases of different models. Each clamp subplate can be selectively mounted on multiple support columns.

8. The ventilation tube loosening detection device according to claim 1, characterized in that, The alarm component is equipped with a reset button.

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