Engine crankcase blow-by amount detector

The fan cooling system and magnetic structure design solve the problem of electronic component performance degradation in high-temperature environments in the engine crankcase blowby detector, achieve the accuracy of the test results and signal stability, and facilitate dust cleaning and instrument protection.

CN223307856UActive Publication Date: 2025-09-05NANTONG ZELANG TECH CO LTD
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Patent Information

Application Number
CN202422657705.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-09-05
Estimated Expiration
2034-11-01

AI Technical Summary

Technical Problem

The performance of electronic components in existing engine crankcase blowby detectors degrades in high-temperature environments, resulting in inaccurate test results and unstable signals.

Method used

It adopts a fan cooling system and magnetic structure design, uses electromagnets and threaded rod slider mechanisms to achieve automatic heat dissipation, and uses the fan to blow in outside air to dissipate heat to prevent electronic components from overheating; uses springs and pull-plate mechanisms to fix the box cover to prevent damage from foreign objects.

Benefits of technology

It effectively prevents electronic components from overheating, maintains the accuracy of test results and signal stability, and facilitates dust cleaning and protects the instrument operating surface.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an engine crankcase blow-by amount detector, which relates to the technical field of blow-by amount detection and comprises a detector body, and a fixing plate is fixedly mounted on the inner wall of the detector body. According to the utility model, when the temperature is too high, a worker starts an electromagnet, an iron bottom plate descends due to attraction force, a top block enters a storage seat, then the worker rotates a grip, a threaded rod rotates, a sliding block and the storage seat move, then the worker starts a fan, and external air enters the detector body from an air inlet; and then the air is blown to the electronic component from the output end of the fan to cool the electronic component, so that performance reduction caused by overheating of the electronic component is prevented. And after use is finished, a worker reversely rotates the grip, and when the storage base moves to the position below the air inlet and the heat dissipation holes, the elastic force of a second spring pushes the bottom plate to ascend, a top block enters the air inlet and the heat dissipation holes, dust in the air inlet and the heat dissipation holes is pushed out, and cleaning of the dust in the air inlet and the heat dissipation holes is facilitated.
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Description

Technical Field

[0001] The utility model relates to the technical field of blowby gas amount detection, in particular to an engine crankcase blowby gas amount detector. Background Art

[0002] An engine crankcase blowby meter is a crucial device used to monitor blowby within the engine's crankcase during operation. The meter's operating principle is typically based on gas flow measurement. It collects blowby gases through an interface connected to the engine crankcase and employs sophisticated sensors and measurement techniques to determine the gas flow rate and related parameters. Its advantage lies in its ability to accurately assess engine wear and sealing performance. For example, excessive blowby may indicate severe piston ring wear, cylinder wall scratches, or valve seal failure. Common engine crankcase blowby meters come in two types: handheld and desktop. Handheld meters are portable and suitable for rapid on-site testing; desktop meters typically offer more precise measurement capabilities and richer data displays.

[0003] In the prior art, when an engine crankcase blowby gas detector is used, its operating environment may be various. If the operating environment temperature is high, many electronic components inside it may experience performance degradation under high temperature, resulting in inaccurate test results. In addition, high temperature may increase electronic noise, thereby affecting the stability and accuracy of the signal. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the operating environment temperature is high, and many electronic components inside may experience performance degradation at high temperature, resulting in inaccurate detection results, and high temperature may increase electronic noise, thereby affecting the stability and accuracy of the signal. An engine crankcase blowby detector is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an engine crankcase blowby gas detector, comprising a detector body, a fixing plate fixedly installed on the inner wall of the detector body, a fan fixedly installed on the outer wall of the fixing plate, the output end of the fan passes through the fixing plate, and electronic components are provided on the inner wall of the detector body, a threaded rod is rotatably installed between the two sides of the detector body, one end of the threaded rod passes through the detector body and is fixedly installed with a handle, a slider is threadedly connected to the outer wall of the threaded rod, a limit rod is fixedly installed between the two sides of the detector body, the limit rod passes through the slider and is slidably connected to the slider, storage seats are fixedly installed at both ends of the slider, electromagnets are fixedly installed on the inner walls of the two storage seats, second springs are fixedly installed on the tops of the two electromagnets, a bottom plate is fixedly installed on the top of the second spring, and a plurality of evenly distributed top blocks are fixedly installed on the top of the bottom plate, and a plurality of evenly distributed air inlets and heat dissipation holes are opened through the inner wall of the detector body.

[0006] Preferably, a box cover is hingedly connected to the outer wall of the detector body, and a connecting plate is fixedly installed on the outer wall of the box cover.

[0007] Preferably, an L-shaped plate is fixedly installed on the outer wall of the detector body, a first spring is fixedly installed on the inner wall of the L-shaped plate, a stopper is fixedly installed on the bottom of the first spring, a connecting rod is fixedly installed on the top of the stopper, and the top of the connecting rod passes through the L-shaped plate and is fixedly installed with a pull plate.

[0008] Preferably, the plurality of top blocks are respectively engaged with a plurality of air inlets and heat dissipation holes.

[0009] Preferably, the two outer walls of the bottom plate are respectively fitted with the inner walls of the two storage seats.

[0010] Preferably, a handle is fixedly mounted on the top of the detector body, and support frames are fixedly mounted on the four corners of the top of the detector body.

[0011] Preferably, two limit plates are fixedly installed on the inner wall of the detector body.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the present invention, when the temperature is too high, the staff activates the electromagnet, causing the iron base plate to descend under attraction, and the top block to enter the storage seat. The staff then rotates the handle, causing the threaded rod to rotate, and the slider and storage seat to move. The staff then activates the fan, allowing outside air to enter the detector body through the air inlet and then blow toward the electronic components from the fan's output end, dissipating heat and preventing overheating and performance degradation. When use is complete, the staff rotates the handle in the opposite direction, and when the storage seat moves below the air inlet and heat dissipation holes, the elastic force of the second spring pushes the base plate upward, allowing the top block to enter the air inlet and heat dissipation holes, pushing out dust inside the air inlet and heat dissipation holes, making it easier to clean dust inside the air inlet and heat dissipation holes.

[0014] 2. In the present invention, at the end of use, the staff pulls the pull plate, and the pull plate drives the stop block to move upward through the connecting rod, the first spring is compressed, and then the staff rotates the box cover to cover one side of the operating surface of the detector body. At this time, the connecting plate is in contact with one side of the L-shaped plate. At this time, the staff releases the pull plate, and the elastic force of the first spring pushes the stop block down, and one end of the stop block is in contact with the outer wall of the connecting plate. At this time, the connecting plate is fixed, and the box cover can be fixed to prevent foreign objects from damaging the operating surface of the detector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides an overall three-dimensional diagram of an engine crankcase blowby gas detector;

[0016] Figure 2 The utility model provides a three-dimensional diagram of the internal structure of the detector body of an engine crankcase blowby amount detector;

[0017] Figure 3 The utility model provides a cross-sectional view of the detector body of an engine crankcase blowby amount detector;

[0018] Figure 4 The utility model provides a three-dimensional diagram of the internal structure of a storage seat of an engine crankcase blowby gas detector.

[0019] Legend: 1. Detector body; 2. Support frame; 3. Handle; 4. Box cover; 5. Connecting plate; 6. L-shaped plate; 7. First spring; 8. Stop block; 9. Connecting rod; 10. Pull plate; 11. Air inlet; 12. Heat dissipation hole; 13. Fixing plate; 14. Fan; 15. Threaded rod; 16. Grip; 17. Limit rod; 18. Slider; 19. Storage seat; 20. Electronic component; 21. Limit plate; 22. Electromagnet; 23. Second spring; 24. Bottom plate; 25. Top block. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1, as Figure 1-Figure 4 As shown, the utility model provides an engine crankcase blowby amount detector, including a detector body 1, a fixing plate 13 is fixedly installed on the inner wall of the detector body 1, a fan 14 is fixedly installed on the outer wall of the fixing plate 13, the output end of the fan 14 passes through the fixing plate 13, an electronic component 20 is provided on the inner wall of the detector body 1, a threaded rod 15 is rotatably installed between the two sides of the inside of the detector body 1, one end of the threaded rod 15 passes through the detector body 1 and is fixedly installed with a handle 16, and a slider 18 is threadedly connected to the outer wall of the threaded rod 15. A limit rod 17 is fixedly installed between the two sides of the body 1, and the limit rod 17 passes through the slider 18 and is slidably connected to the slider 18. Storage seats 19 are fixedly installed at both ends of the slider 18, and electromagnets 22 are fixedly installed on the inner walls of the two storage seats 19. Second springs 23 are fixedly installed on the tops of the two electromagnets 22, and a bottom plate 24 is fixedly installed on the tops of the second springs 23. A plurality of evenly distributed top blocks 25 are fixedly installed on the tops of the bottom plate 24. A plurality of evenly distributed air inlets 11 and heat dissipation holes 12 are opened through the inner wall of the detector body 1.

[0023] The effect achieved by the entire embodiment 1 is that when the temperature is too high, the staff activates the electromagnet 22, the iron bottom plate 24 is attracted and lowered, and the top block 25 enters the storage seat 19. The staff then rotates the handle 16, the threaded rod 15 rotates, the slider 18 and the storage seat 19 move, and the staff then activates the fan 14. External air enters the detector body 1 through the air inlet 11 and is then blown toward the electronic components 20 from the output end of the fan 14, dissipating heat and preventing overheating and performance degradation. At the end of use, the staff rotates the handle 16 in the opposite direction. When the storage seat 19 moves below the air inlet 11 and the heat dissipation hole 12, the elastic force of the second spring 23 pushes the bottom plate 24 upward, and the top block 25 enters the air inlet 11 and the heat dissipation hole 12, pushing out dust inside the air inlet 11 and the heat dissipation hole 12, making it easier to clean the dust inside the air inlet 11 and the heat dissipation hole 12.

[0024] Example 2, as Figure 1-Figure 4 As shown, further, a box cover 4 is hingedly connected to the outer wall of the detector body 1, and a connecting plate 5 is fixedly installed on the outer wall of the box cover 4.

[0025] Furthermore, an L-shaped plate 6 is fixedly installed on the outer wall of the detector body 1, a first spring 7 is fixedly installed on the inner wall of the L-shaped plate 6, a stopper 8 is fixedly installed on the bottom of the first spring 7, a connecting rod 9 is fixedly installed on the top of the stopper 8, and the top of the connecting rod 9 passes through the L-shaped plate 6 and is fixedly installed with a pull plate 10.

[0026] Furthermore, the plurality of top blocks 25 are respectively engaged with the plurality of air inlets 11 and heat dissipation holes 12 , ensuring that when the top blocks 25 enter the air inlets 11 and heat dissipation holes 12 , the dust inside them can be pushed out.

[0027] Furthermore, the outer walls of the two bottom plates 24 are respectively fitted with the inner walls of the two storage seats 19 to prevent the bottom plates 24 from tilting when moving.

[0028] Furthermore, a handle 3 is fixedly installed on the top of the detector body 1, and support frames 2 are fixedly installed on the four corners of the top of the detector body 1.

[0029] Furthermore, two limit plates 21 are fixedly installed on the inner wall of the detector body 1. When the storage seat 19 contacts the limit plates 21, multiple top blocks 25 move to the bottom of the air inlet 11 and the heat dissipation hole 12 to prevent the staff from rotating excessively.

[0030] The effect achieved by the entire embodiment 2 is that at the end of use, the staff pulls the pull plate 10, and the pull plate 10 drives the stop block 8 to move upward through the connecting rod 9, and the first spring 7 is compressed. Then the staff rotates the box cover 4 to cover the side of the operating surface of the detector body 1. At this time, the connecting plate 5 is in contact with one side of the L-shaped plate 6. At this time, the staff releases the pull plate 10, and the elastic force of the first spring 7 pushes the stop block 8 down. One end of the stop block 8 is in contact with the outer wall of the connecting plate 5. At this time, the connecting plate 5 is fixed, and the fixation of the box cover 4 can be completed to prevent foreign objects from causing damage to the operating surface of the detector body 1.

[0031] Working principle: When the temperature is too high, the staff starts the electromagnet 22, the iron bottom plate 24 is attracted and drops, and the top block 25 enters the storage seat 19. Then the staff turns the handle 16, the threaded rod 15 rotates, the slider 18 and the storage seat 19 move, and then the staff starts the fan 14. The outside air enters the detector body 1 from the air inlet 11, and then blows from the output end of the fan 14 to the electronic components 20 to dissipate heat and prevent them from overheating and causing performance degradation. At the end of use, the staff rotates the handle 16 in the opposite direction. When the storage seat 19 moves to the bottom of the air inlet 11 and the heat dissipation hole 12, the elastic force of the second spring 23 pushes the bottom plate 24 up, and the top block 25 enters the air inlet 11 and the heat dissipation hole 12, pushing out the dust inside the air inlet 11 and the heat dissipation hole 12, making it easier to clean the dust inside the air inlet 11 and the heat dissipation hole 12. At the end of use, the staff pulls the pull plate 10, and the pull plate 10 drives the stop block 8 to move upward through the connecting rod 9, the first spring 7 is compressed, and then the staff rotates the box cover 4 to cover the side of the operating surface of the detector body 1. At this time, the connecting plate 5 is in contact with one side of the L-shaped plate 6. At this time, the staff releases the pull plate 10, and the elastic force of the first spring 7 pushes the stop block 8 down. One end of the stop block 8 is in contact with the outer wall of the connecting plate 5. At this time, the connecting plate 5 is fixed, and the fixation of the box cover 4 can be completed to prevent foreign objects from damaging the operating surface of the detector body 1.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An engine crankcase blowby gas detector, comprising a detector body (1), characterized in that: A fixing plate (13) is fixedly mounted on the inner wall of the detector body (1), a fan (14) is fixedly mounted on the outer wall of the fixing plate (13), an output end of the fan (14) passes through the fixing plate (13), an electronic component (20) is provided on the inner wall of the detector body (1), a threaded rod (15) is rotatably mounted between the two sides of the interior of the detector body (1), one end of the threaded rod (15) passes through the detector body (1) and is fixedly mounted with a handle (16), a slider (18) is threadedly connected to the outer wall of the threaded rod (15), and a limit rod (16) is fixedly mounted between the two sides of the interior of the detector body (1). 17), the limiting rod (17) passes through the slider (18) and is slidably connected to the slider (18), storage seats (19) are fixedly installed at both ends of the slider (18), electromagnets (22) are fixedly installed on the inner walls of the two storage seats (19), second springs (23) are fixedly installed on the tops of the two electromagnets (22), a bottom plate (24) is fixedly installed on the tops of the second springs (23), and a plurality of evenly distributed top blocks (25) are fixedly installed on the tops of the bottom plate (24), and a plurality of evenly distributed air inlets (11) and heat dissipation holes (12) are opened through the inner wall of the detector body (1).

2. The engine crankcase blowby gas detector according to claim 1, characterized in that: A box cover (4) is hingedly connected to the outer wall of the detector body (1), and a connecting plate (5) is fixedly installed on the outer wall of the box cover (4).

3. The engine crankcase blowby gas detector according to claim 1, characterized in that: An L-shaped plate (6) is fixedly mounted on the outer wall of the detector body (1), a first spring (7) is fixedly mounted on the inner wall of the L-shaped plate (6), a stopper (8) is fixedly mounted on the bottom of the first spring (7), a connecting rod (9) is fixedly mounted on the top of the stopper (8), and the top of the connecting rod (9) passes through the L-shaped plate (6) and is fixedly mounted with a pull plate (10).

4. The engine crankcase blowby gas detector according to claim 1, characterized in that: The plurality of top blocks (25) are respectively engaged with the plurality of air inlets (11) and heat dissipation holes (12).

5. The engine crankcase blowby gas detector according to claim 1, characterized in that: The outer walls of the two bottom plates (24) are respectively fitted with the inner walls of the two storage seats (19).

6. The engine crankcase blowby gas detector according to claim 1, characterized in that: A handle (3) is fixedly mounted on the top of the detector body (1), and support frames (2) are fixedly mounted on the four corners of the top of the detector body (1).

7. The engine crankcase blowby gas detector according to claim 1, characterized in that: Two limiting plates (21) are fixedly mounted on the inner wall of the detector body (1).