Automobile brake pad wear detection mechanism
By designing an automobile brake pad wear detection mechanism that includes a ruler housing, a measuring ruler, a millimeter-wave ranging sensor and a display, the problems of low accuracy and complex operation of existing detection methods are solved, and efficient and accurate brake pad wear is achieved. detection.
Patent Information
- Application Number
- CN202420784103.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The existing automotive brake pad wear detection methods have low accuracy, time-consuming and labor-intensive methods, and require dismantling of tires, which are complex in operation and have great limitations.
A car brake pad wear detection mechanism is designed, including a ruler housing, a measuring ruler, a millimeter-wave ranging sensor and a display. By automatically measuring the thickness of the brake pad, displaying the measurement results, and subtracting the thickness of the brake pad base, the brake pad can be obtained. The degree of chip wear.
It achieves accurate and automatic measurement of brake pad thickness with high efficiency, reduces the inaccuracy of manual observation, simplifies the detection process and reduces detection costs.
Smart Images
Figure CN222364559U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile brake systems, in particular to an automobile brake pad wear detection mechanism. Background Art
[0002] When a car is driving, the brake function is often used. The brake components of a car include fixed calipers, caliper pistons, brake discs, carrier plates and brake pads. When braking, the friction between the brake pads and the brake discs is used to quickly reduce the speed of the car. Therefore, during the braking process, the brake pads will gradually wear out, and when their thickness drops to a certain threshold, they will lose their braking effect. If the brake pads are not replaced in time, life and property safety may be seriously endangered.
[0003] Usually, the thickness of the brake pad of a new car is about 1.5cm. The existing automobile brake pad wear detection is mostly judged by the owner directly observing the brake pad inside the tire at the edge of the tire hub. In addition, there are judgments based on the braking effect or listening to the sound. The above methods have low accuracy and can only be estimated but not accurately judged. If an accurate judgment is to be made, it is often necessary to disassemble the tire and use a measuring ruler to measure. This detection method is time-consuming and labor-intensive and often needs to be performed in a repair shop. The detection method has great limitations. For this reason, we provide an automobile brake pad wear detection mechanism to solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a method to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A mechanism for detecting wear of automobile brake pads comprises a ruler shell, one end of the ruler shell is provided with a ruler groove, a ruler is arranged in the ruler groove, a strip-shaped sliding opening is provided at the upper part of the ruler shell, a push plate is arranged in the strip-shaped sliding opening, the bottom end of the push plate is fixedly connected to the ruler, a millimeter wave ranging sensor is installed at the bottom of the ruler groove, a display is installed on the outer wall of the ruler shell, the millimeter wave ranging sensor is electrically connected to the display, a hinge plate is installed at the other end of the ruler shell, a hinge pin is installed in the middle of the hinge plate, and a plurality of feeler gauges are installed on the hinge pin.
[0007] As a further solution of the utility model: the surface of the measuring ruler is provided with scale lines.
[0008] As a further solution of the utility model: a baffle is installed at one end of the ruler housing away from the hinge plate.
[0009] As a further solution of the utility model: the two sides of the ruler housing are provided with anti-slip stripes
[0010] As a further solution of the utility model: a lithium battery is installed inside the ruler shell, a battery cover is installed on the outer surface of the ruler shell facing the lithium battery, and the lithium battery is electrically connected to the millimeter wave ranging sensor and the display.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. The utility model can automatically measure the thickness of the brake pad (brake pad body + base) through the cooperation of the ruler shell, the measuring ruler, the millimeter wave distance measuring sensor and the display. The measurement result is automatically displayed on the display, and then the thickness of the brake pad can be measured by subtracting the thickness of the 5mm brake pad base, and then the degree of wear of the brake pad can be known. Compared with the existing manual naked eye observation, the measurement of the utility model is more accurate and efficient.
[0013] 2. The utility model has several feeler gauges of different widths arranged at the tail of the ruler housing. When it is inconvenient to measure with a ruler, the feeler gauge can be inserted from one side of the brake pad and the brake disc to measure the distance between the brake pad base and the brake disc. The measurement result is the thickness of the brake pad body (there is no gap between the brake pad and the brake disc). BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The figure is a front cross-sectional view of a vehicle brake pad wear detection mechanism.
[0015] Figure 2 The figure is an overall appearance diagram of a vehicle brake pad wear detection mechanism.
[0016] Figure 3 This is a state diagram of a measuring ruler of a vehicle brake pad wear detection mechanism when in use.
[0017] 1. Ruler housing; 2. Measuring ruler; 3. Ruler slot; 4. Push plate; 5. Strip slide; 6. Millimeter wave ranging sensor; 7. Display; 8. Scale line; 9. Hinge plate; 10. Feeler gauge; 11. Hinge pin; 12. Baffle; 13. Lithium battery; 14. Battery cover; 15. Anti-slip stripes; 16. Brake disc; 17. Brake pad; 18. Brake pad base. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figure 1-2In the embodiment of the utility model, a brake pad wear detection mechanism for an automobile comprises a ruler shell 1, a ruler slot 3 is provided at one end of the ruler shell 1, a ruler 2 is arranged in the ruler slot 3, a strip-shaped sliding opening 5 is provided at the upper part of the ruler shell 1, a push plate 4 is arranged in the strip-shaped sliding opening 5, the bottom end of the push plate 4 is fixedly connected to the ruler 2, a millimeter wave ranging sensor 6 is installed at the bottom of the ruler slot 3, the model of the millimeter wave ranging sensor 6 is LGUB120, the working heat of the millimeter wave ranging sensor 6 can be dissipated through the strip-shaped sliding opening 5, a display 7 is installed on the outer wall of the ruler shell 1 of the millimeter wave ranging sensor 6, the millimeter wave ranging sensor 6 is electrically connected to the display 7, and the surface of the ruler 2 is fixedly connected to the ruler 2. A scale line 8 is provided. The setting of the scale line 8 can facilitate the measurement of the thickness of the brake pad by observing the scale line 8 with the naked eye when the lithium battery 13 is out of power or the sensor cannot be used. A baffle 12 is installed at the end of the ruler shell 1 away from the hinge plate 9. The baffle 12 is used to abut against the outer wall of the brake pad base 18 for measurement. Anti-skid stripes 15 are provided on both sides of the ruler shell 1. The setting of the anti-skid stripes 15 can increase the friction of the outer surface of the ruler shell 1 and facilitate people to hold it. A lithium battery 13 is installed inside the ruler shell 1, and a battery cover 14 is installed on the outer surface of the ruler shell 1 facing the lithium battery 13. The lithium battery 13 is electrically connected to the millimeter wave ranging sensor 6 and the display 7.
[0020] See also Figure 1-3 When in use, when measuring the degree of wear of the brake pad, the personnel holds the ruler shell 1 with one hand and moves it toward the brake disc 16 until the baffle 12 is pressed against the surface of the brake pad base 18 outside the brake pad, and then places the thumb on the push plate 4 to push the ruler 2 forward from the ruler groove 3 (the angle between the ruler 2 and the brake disc 16 is 90°) until the end of the ruler 2 is pressed against the surface of the brake disc 16. At this time, the millimeter wave ranging sensor 6 located in the ruler shell 1 will measure its distance from the ruler 2. The distance = the extended length of the ruler 2 = the thickness of the brake pad (brake pad base 18 + brake pad body 17). The data is displayed on the display 7. The personnel will subtract 5mm (the thickness value of the brake pad base 18) from the obtained value to obtain the thickness of the brake pad body 17. Compared with the factory brake pad thickness, the wear amount of the brake pad body 17 can be known, and then the degree of wear of the brake pad can be known.
[0021] See also Figure 1-2 A hinge plate 9 is installed at the other end of the ruler housing 1, and a hinge pin 11 is installed in the middle of the hinge plate 9. Several feeler gauges 10 are installed on the hinge pin 11. When vertical insertion is inconvenient, the feeler gauge 10 can also be used to extend from the side of the brake disc 16 to find the feeler gauge 10 whose end can just be inserted into the gap between the brake disc 16 and the brake pad base 18. The thickness marked on the feeler gauge 10 is the thickness of the brake pad body 17.
[0022] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A vehicle brake pad wear detection mechanism, comprising a ruler housing (1), characterized in that: A ruler slot (3) is provided at one end of the ruler housing (1), a ruler (2) is arranged in the ruler slot (3), a strip-shaped sliding opening (5) is provided at the top of the ruler housing (1), a push plate (4) is arranged in the strip-shaped sliding opening (5), the bottom end of the push plate (4) is fixedly connected to the ruler (2), a millimeter wave ranging sensor (6) is installed at the bottom of the ruler slot (3), a display (7) is installed on the outer wall of the ruler housing (1), the millimeter wave ranging sensor (6) is electrically connected to the display (7), and a hinge plate (9) is installed at the other end of the ruler housing (1), a hinge pin (11) is installed in the middle of the hinge plate (9), and a plurality of feeler gauges (10) are installed on the hinge pin (11).
2. The automobile brake pad wear detection mechanism according to claim 1, characterized in that: The surface of the measuring ruler (2) is provided with scale lines (8).
3. The automobile brake pad wear detection mechanism according to claim 1, characterized in that: A baffle plate (12) is mounted on one end of the ruler housing (1) away from the hinge plate (9).
4. The automobile brake pad wear detection mechanism according to claim 1, characterized in that: Anti-slip stripes (15) are provided on both side surfaces of the ruler housing (1).
5. The automobile brake pad wear detection mechanism according to claim 1, characterized in that: A lithium battery (13) is installed inside the ruler housing (1), and a battery cover (14) is installed on the outer surface of the ruler housing (1) facing the lithium battery (13). The lithium battery (13) is electrically connected to the millimeter wave ranging sensor (6) and the display (7).