Detection device of engine oil position sensor

By introducing a straight cylinder, ring, and screw support structure into the oil position sensor detection device, the problem of unstable connection caused by sliding friction is solved, thereby improving detection accuracy and service life.

CN223767584UActive Publication Date: 2026-01-06WENZHOU QK AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520670632.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-01-06
Estimated Expiration
2035-04-10

AI Technical Summary

Technical Problem

Existing oil level sensor detection devices suffer from unstable connections due to sliding friction during prolonged use, affecting detection accuracy and shortening service life.

Method used

An oil level sensor detection device was designed. By introducing a straight cylinder and a ring into the control structure, a circular rod is used to provide dual-point support for the sliding rheostat to prevent it from tilting. The device is then fixed by a combination of a screw and a bracket to ensure its stability.

Benefits of technology

This improves the accuracy and lifespan of the oil level sensor, ensuring the stability and reliability of the detection device when the oil level changes.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223767584U_ABST
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Abstract

The utility model relates to the technical field of detection devices of engine oil position sensors, in particular to a detection device of an engine oil position sensor, which comprises a wire interface and groove plates, the front side and the rear side of the wire interface are respectively and fixedly connected with the inner sides of a plurality of groove plates, and the inner walls of the groove plates are connected with fixing structures. And the bottom of the wire interface is fixedly connected with an engine oil position sensor detection device. The position of a slide rheostat in a straight cylinder in the control structure can also change, the resistance value of the slide rheostat changes at the moment, then the output current changes along with the change of the oil quantity, the current can be converted into the gasoline quantity through an engine oil position sensor detection device, and oil quantity detection is achieved; the round rod on the inner wall of the circular ring has a limiting effect on the slide rheostat, double-point-position supporting is achieved, the slide rheostat is prevented from inclining, it is guaranteed that the detection device of the engine oil position sensor is accurate in detection, and the service life is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the technical field of detection devices for engine oil position sensors, specifically to a detection device for an engine oil position sensor. Background Technology

[0002] The oil level sensor monitors the engine oil level in real time. When the oil level is below the normal range, the sensor will send a signal to remind the driver to add oil in time to prevent engine damage caused by insufficient oil.

[0003] For example, an oil level sensor with announcement number "CN208347857U" uses a detection method where the detection socket is inserted into the engine oil, immersing the light source and photoresistor in the oil. The light source and photoresistor are used to detect oil parameters on-site, thus avoiding the disadvantages of built-in detection and the high technical requirements of external detection. However, the detection device in this oil level sensor relies on a connected sliding rheostat. As the oil level changes, the resistance value changes, and the output current changes accordingly. This current value is converted into oil level by the internal signal processor of the oil level sensor, thus measuring the oil level. During this process, the detection device changes with the oil level. Since the control device is a single-point sliding connection, prolonged sliding friction can affect the connection stability, causing the detection device to tilt, affecting the accuracy of the oil level sensor's detection and shortening its lifespan. Utility Model Content

[0004] The purpose of this invention is to solve the problem of the oil position sensor detection device affecting accuracy and shortening service life, and to propose an oil position sensor detection device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design an oil position sensor detection device, including a wire interface and a slot plate. The front and rear sides of the wire interface are respectively fixed to the inner sides of multiple slot plates. The inner wall of the slot plate is connected to a fixing structure. The bottom of the wire interface is fixed to the oil position sensor detection device. The front of the oil position sensor detection device is connected to a control structure.

[0007] Preferably, the control structure includes a straight cylinder and a ring. The rear end face of the straight cylinder is fixedly connected to the front face of the oil position sensor detection device. The front and rear sides of the inner wall of the straight cylinder are respectively fixedly connected to the outer walls of the two rings. Multiple round rods are fixedly connected to the inner wall of the rings, and a sliding rheostat is attached to the end of each round rod.

[0008] Preferably, the inner wall of the sliding rheostat is electrically connected to the output terminal of the oil position sensor detection device.

[0009] Preferably, multiple curved plates are fixed to the front of the outer wall of the oil position sensor detection device.

[0010] Preferably, the fixing structure includes a screw and a bracket, the inner side of the outer wall of the screw is slidably connected to the inner wall of the groove plate, the outer side of the screw is fixedly connected to the inner side of the bracket, and a collar is threaded onto the outer wall of the screw.

[0011] Preferably, the inner wall of the bracket is adjacent to the outer wall of the wire interface.

[0012] The present invention provides a detection device for an oil level sensor, which has the following advantages: The sliding rheostat inside the straight cylinder in the control structure also changes position, causing a change in its resistance value. Consequently, the output current changes with the oil level, and this current is converted into the oil level by the oil level sensor detection device, thus enabling oil level detection. When the sliding rheostat changes position, the circular rod on the inner wall of the ring restricts its movement, providing dual-point support and preventing tilting. This ensures accurate detection by the oil level sensor detection device and guarantees its service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the straight cylinder, the ring, and the round rod;

[0015] Figure 3 for Figure 1 A schematic diagram of the structure of A in the middle;

[0016] Figure 4 for Figure 1 A schematic diagram showing the connection relationship between the middle ring and the round rod;

[0017] Figure 5 for Figure 1 A schematic diagram showing the connection relationship between the screw, the bracket, and the collar.

[0018] In the diagram: 1. Wire interface, 2. Control structure, 201. Straight cylinder, 202. Ring, 203. Round rod, 204. Sliding rheostat, 3. Fixed structure, 301. Screw, 302. Bracket, 303. Collar, 4. Groove plate, 5. Oil position sensor detection device, 6. Curved plate, 7. Protective pad. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Example 1: Please refer to Figure 1-5 In this embodiment, an oil position sensor detection device includes a wire interface 1 and a slot plate 4. The front and rear sides of the wire interface 1 are respectively fixedly connected to the inner sides of multiple slot plates 4. The inner wall of the slot plate 4 is connected to a fixing structure 3. An oil position sensor detection device 5 is fixedly connected to the bottom of the wire interface 1. How the oil position sensor detection device 5 is operated and used is existing technology and will not be elaborated in detail. The model is selected according to the usage requirements. A control structure 2 is connected to the front of the oil position sensor detection device 5.

[0021] The control structure 2 includes a straight cylinder 201 and a ring 202. The rear end face of the straight cylinder 201 is fixedly connected to the front face of the oil position sensor detection device 5. The front and rear sides of the inner wall of the straight cylinder 201 are fixedly connected to the outer walls of the two rings 202 respectively. Multiple round rods 203 are fixedly connected to the inner wall of the rings 202. A sliding rheostat 204 is attached to the end of the round rod 203. The sliding rheostat 204 can slide back and forth against the inner side of the round rod 203. The rear of the inner wall of the sliding rheostat 204 is electrically connected to the output terminal of the oil position sensor detection device 5. The model of the sliding rheostat 204 is selected according to the usage requirements.

[0022] The position of the sliding rheostat 204 inside the straight cylinder 201 in the control structure 2 also changes. At this time, the resistance value of the sliding rheostat 204 changes, and the output current changes with the oil level. The current is converted into the oil level by the oil level sensor detection device 5 to realize the oil level detection. When the position of the sliding rheostat 204 changes, the round rod 203 on the inner wall of the ring 202 restricts the sliding rheostat 204, realizing dual-point support, preventing the sliding rheostat 204 from tilting, ensuring the accuracy of the oil level sensor detection device, and guaranteeing its service life.

[0023] Multiple curved plates 6 are fixedly connected to the front of the outer wall of the oil position sensor detection device 5. The fixing structure 3 includes a screw 301 and a bracket 302. The inner side of the outer wall of the screw 301 is slidably connected to the inner wall of the groove plate 4. The screw 301 slides up and down through the inner wall of the groove plate 4 under force, and can also rotate at an angle on the inner wall of the groove plate 4. The outer side of the screw 301 is fixedly connected to the inner side of the bracket 302. A collar 303 is threadedly connected to the outer wall of the screw 301. The collar 303 rotates back and forth through the outer wall of the screw 301 under force. The inner wall of the bracket 302 is adjacent to the outer wall of the wire interface 1.

[0024] Working principle:

[0025] Installation of the oil level sensor detection device:

[0026] Insert the straight cylinder 201 into the oil tank opening until the outer wall of the curved plate 6 is flush with the oil tank. Then, the bolt passes through the curved plate 6 and is fixed to the oil tank. Next, connect the wire interface 1 to the vehicle body wire. Then, the screw 301 slides upward on the inner wall of the slot plate 4, while the bracket 302 flips upward so that the upper part of the inner wall of the bracket 302 is above the wire connector. Then, the screw 301 slides downward on the inner wall of the slot plate 4, moving the bracket 302 downward so that the bracket 302 presses against the top of the wire connector. Then, the collar 303 rotates inward through the screw 301, so that the inner side of the collar 303 abuts against the outer wall of the slot plate 4, generating friction between the collar 303 and the slot plate 4, which fixes the screw 301, thus completing the installation of the oil position sensor detection device 5.

[0027] Oil level sensor detection device usage:

[0028] When the oil level inside the oil tank changes, the position of the sliding rheostat 204 inside the straight cylinder 201 also changes. At this time, the resistance value of the sliding rheostat 204 changes, and the output current changes with the oil level. The current is converted into the oil level by the oil level sensor detection device 5 to realize the oil level detection. When the position of the sliding rheostat 204 changes, the round rod 203 on the inner wall of the ring 202 restricts the sliding rheostat 204, realizes dual-point support, and prevents the sliding rheostat 204 from tilting.

[0029] Example 2: Please refer to Figure 1-5 In this embodiment, an oil position sensor detection device further includes a protective pad 7, the rear end face of which is fixedly connected to the front face of the oil position sensor detection device 5.

[0030] Working principle:

[0031] When the oil level sensor detection device 5 is installed, the gasket 7 will be pressed against the oil tank, and the gasket 7 will play a sealing role through its own rubber material.

[0032] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. An oil level sensor detection device comprising a wire interface (1) and a plurality of slot plates (4), the front and back sides of the wire interface (1) are respectively fixed with the inner sides of the plurality of slot plates (4), characterized in that: The inner wall of the groove plate (4) is connected with a fixing structure (3), the bottom of the wire interface (1) is fixedly connected with an engine oil position sensor detection device (5), and the front surface of the engine oil position sensor detection device (5) is connected with a control structure (2).

2. The detection device of an engine oil level sensor according to claim 1, characterized by: The control structure (2) comprises a straight cylinder (201) and a circular ring (202), the rear end surface of the straight cylinder (201) is fixedly connected with the front surface of the engine oil position sensor detection device (5), the inner wall of the straight cylinder (201) is fixedly connected with the outer wall of two circular rings (202) on the front and rear sides, respectively, a plurality of circular rods (203) are fixedly connected with the inner wall of the circular ring (202), and the end portion of the circular rod (203) is attached with a sliding rheostat (204).

3. The detection device of an engine oil level sensor according to claim 2, characterized by: The inner wall of the sliding rheostat (204) is electrically connected with the output end of the engine oil position sensor detection device (5) at the rear side.

4. The detection device of an engine oil level sensor according to claim 1, characterized by: A plurality of curved plates (6) are fixedly connected with the outer wall of the engine oil position sensor detection device (5) at the front side.

5. The detection device of an engine oil level sensor according to claim 1, characterized by: The fixing structure (3) comprises a screw rod (301) and a support (302), the inner side of the outer wall of the screw rod (301) is slidably connected with the inner wall of the groove plate (4), the outer side of the screw rod (301) is fixedly connected with the inner side of the support (302), and the outer wall of the screw rod (301) is threadedly connected with a sleeve ring (303).

6. The detection device of an engine oil level sensor according to claim 5, characterized by: The inner wall of the support (302) is adjacent to the outer wall of the wire interface (1).

Citation Information

Patent Citations

  • Machine oil detection sensor

    CN208347857U