CN116336115B - Alarm sensor for automobile brake pad - Google Patents

Alarm sensor for automobile brake pad Download PDF

Info

Publication number
CN116336115B
CN116336115B CN202310394730.3A CN202310394730A CN116336115B CN 116336115 B CN116336115 B CN 116336115B CN 202310394730 A CN202310394730 A CN 202310394730A CN 116336115 B CN116336115 B CN 116336115B
Authority
CN
China
Prior art keywords
electromagnet
rod
fixedly connected
movable
brake pad
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202310394730.3A
Other languages
Chinese (zh)
Other versions
CN116336115A (en
Inventor
刘春廷
郑加彬
张伟杰
牛玉霞
黄茂福
丁荣波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linyi Tianyi Electronic Co ltd
Original Assignee
Linyi Tianyi Electronic Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linyi Tianyi Electronic Co ltd filed Critical Linyi Tianyi Electronic Co ltd
Priority to CN202310394730.3A priority Critical patent/CN116336115B/en
Publication of CN116336115A publication Critical patent/CN116336115A/en
Application granted granted Critical
Publication of CN116336115B publication Critical patent/CN116336115B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D66/02—Apparatus for indicating wear
    • F16D66/021—Apparatus for indicating wear using electrical detection or indication means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D2066/003—Position, angle or speed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention discloses an alarm sensor for an automobile brake pad, which relates to the technical field of automobile brake pads and comprises an alarm, a steel plate and a plurality of brake pads fixedly installed on the top of the steel plate, wherein two installation cavities are formed in the steel plate; the installation cavity is internally provided with a positioning mechanism and an anti-disengaging mechanism, and the anti-disengaging mechanism is positioned above the positioning mechanism. According to the invention, under the condition that the length of the resistor disc is unchanged, the thickness of the resistor disc is thinned and the cross section area is reduced due to friction between the brake disc and the resistor disc, so that the current flowing through the first electromagnet and the second electromagnet is reduced, the magnetic attraction between the first electromagnet and the permanent magnet is reduced to be smaller than the mutual attraction between the first electromagnet and the permanent magnet, the first electromagnet moves towards the permanent magnet to push the positioning mechanism to approach the inserting connection rod at the bottom of the sensor body, and then the inserting connection rod can be clamped through the four movable frames, so that the situation of preventing the alarm from loosening and skewing is achieved.

Description

Alarm sensor for automobile brake pad
Technical Field
The invention relates to the technical field of automobile brake pads, in particular to an alarm sensor for an automobile brake pad.
Background
The automobile brake pad is also called an automobile brake pad, and is a friction material fixed on a brake drum or a brake disc rotating with a wheel, and generally consists of a steel plate, an adhesive heat insulation layer and friction blocks, wherein the steel plate is subjected to rust prevention through coating, the friction blocks bear external pressure to generate friction action so as to achieve the aim of decelerating a vehicle, and an alarm sensor is arranged on the steel plate of the automobile brake pad to monitor the thickness of the brake pad, so that the normal braking of the automobile is prevented from being influenced along with the abrasion of the brake pad.
The automobile brake alarm sensor comprises a rotary disc for mounting a brake pad, wherein the rotary disc is divided into a left disc and a right disc, the left disc and the right disc are uniformly connected with protruding blocks, the two protruding blocks are symmetrically distributed about the circle center of the rotary disc, the end faces of the protruding blocks are provided with sensor bodies, the left disc and the right disc are respectively provided with a fixing device, each fixing device comprises a concave plate connected with the rotary disc in a rotating mode, each concave plate comprises a rotating shaft, two ends of each rotating shaft are connected with the rotary disc in a rotating mode, one end of each rotating shaft is connected with a torsion spring connected with the rotary disc in a sleeved mode, the bottom of each rotary disc is fixedly connected with a rotating shaft, the other end of each rotating shaft is connected with a rotating motor, and the rotating motor is fixedly connected with a chassis. The invention has the advantages of being capable of replacing the brake pad which is about to be depleted and being capable of early warning.
In the prior art, the sensor is generally arranged on a steel plate of the automobile brake pad, but in the running process of the automobile, the sensor is interfered by various external forces, such as vibration jolt, and the generated forces of the external factors can possibly cause the installation of the sensor to be loose or inclined, so that the monitoring accuracy of the automobile brake pad is affected, and the sensor can not normally and timely give out an alarm, and a monitoring error occurs.
Disclosure of Invention
The invention aims to provide an alarm sensor for an automobile brake pad, which aims to solve the problems that in the running process of an automobile, the sensor is interfered by various external forces, such as vibration and jolt, and the installation of the sensor is possibly loosened or skewed due to the force generated by the external factors, so that the monitoring accuracy of the automobile brake pad is affected, and the sensor cannot normally and timely give an alarm and a monitoring error occurs.
In order to achieve the above purpose, the present invention provides the following technical solutions: the alarm sensor for the automobile brake pad comprises an alarm, a steel plate and a plurality of brake pads fixedly installed on the top of the steel plate, wherein two installation cavities are formed in the steel plate; a positioning mechanism and an anti-disengaging mechanism are arranged in the mounting cavity, and the anti-disengaging mechanism is positioned above the positioning mechanism;
the positioning mechanism comprises an insulating sleeve and a mounting bracket, wherein the insulating sleeve is fixedly arranged on two sides of an inner cavity of the mounting cavity, the mounting bracket is arranged on one side of the insulating sleeve, a first electromagnet, a second electromagnet and a permanent magnet are arranged in the inner cavity of the insulating sleeve, the first electromagnet is positioned between the second electromagnet and the permanent magnet, one side of the permanent magnet is fixedly connected with the inner wall of the insulating sleeve, the second electromagnet is fixedly connected with the inner wall of the insulating sleeve, a movable rod is fixedly connected with one side of the first electromagnet, one end of the movable rod penetrates through the insulating sleeve, a movable frame is arranged on the inner side of the mounting bracket, a limiting hole is formed in one side of the mounting bracket, one end of the movable rod penetrates through the limiting hole, one end of the movable rod is fixedly connected with the center of a movable frame side plate, two mounting shafts are fixedly arranged on the inner sides of the movable frame, one ends of the movable clamps extend to the inner sides of the movable frames, one ends of the movable clamps are movably sleeved on the surfaces of the mounting shafts, torsion springs are fixedly connected with one ends of the movable clamps, the other ends of the movable clamps are fixedly connected with the torsional springs, and the center of the movable frame is fixedly connected with the top of the fixed frame.
Preferably, the two ends of the movable frame are respectively provided with a track, one side of the track is fixedly connected with the inner wall of the mounting bracket, the tracks are in sliding connection with the movable frame, the two ends of the movable frame are respectively provided with a limiting groove, and the section width of each limiting groove is larger than the thickness of the movable clamp.
Preferably, a resistor disc is arranged in the brake pad, and the resistor disc is electrically connected with the first electromagnet and the second electromagnet respectively.
Preferably, the alarm comprises sensor body and sensor pin, sensor body bottom fixedly connected with backing plate, backing plate bottom central authorities fixedly connected with screwed pipe, screwed pipe bottom fixed connection plug rod, the sensor pin passes plug rod and screwed pipe in proper order, and sensor pin one end fixed connection sensor body bottom.
Preferably, the anti-disengaging mechanism comprises a supporting rod and a linkage rod, a rotating shaft is fixedly arranged at the top of the supporting rod, a rotating frame is rotationally connected to the top of the rotating shaft, a rubber gasket is fixedly connected to one end bottom of the rotating frame, a guide block is fixedly connected to one side of the supporting rod, a sliding rod is arranged on the inner surface of the guide block, hinging pieces are rotationally connected to two ends of the linkage rod, the two ends of the hinging pieces are fixedly connected with the bottom of the supporting rod and the top of a fixing frame respectively, the linkage rod is located between the supporting rod and the fixing frame, and one hinging piece at the bottom of the linkage rod is fixedly connected with the top of the fixing frame, so that the fixing frame drives the linkage rod to move together through the hinging pieces, and then, the linkage rod is rotationally connected with the hinging pieces at the top and the bottom of the linkage rod.
Preferably, the top of the sliding rod is fixedly connected with the top of the cavity inner cavity, the bottom of the sliding rod is fixedly connected with a limiting plate, the diameter of the sliding rod is smaller than the diameter of the guide block, the diameter of the guide block is smaller than the diameter of the limiting plate, the rubber gasket is located above the base plate, and the guide block can slide up and down along the surface of the sliding rod under the limiting effect of the sliding rod due to the fact that the guide block can slide up and down along the surface of the sliding rod, and therefore the guide block can move up and down together with the supporting rod when moving.
Preferably, the installation cavity center is provided with the jack-in groove, jack-in groove and installation cavity intercommunication, the jack-in groove top is provided with the screw thread groove, the jack-in groove below is provided with the pin groove, the pin groove internal diameter is less than the jack-in groove internal diameter, the jack-in groove internal diameter is less than the screw thread groove internal diameter, the internal thread that matches with the screwed pipe has been seted up to the screw thread inslot portion, and the plug rod can peg graft with the jack-in groove, because the internal thread that matches with the screwed pipe has been seted up to the screw thread inslot portion, the screwed pipe can slowly be connected with the screw thread groove at rotatory in-process, installs after the screwed pipe is inside the screw thread groove completely.
Preferably, the sensor body is electrically connected with the resistor disc, the diameter of the backing plate is larger than the inner diameter of the thread groove, and the plug rod can be blocked by the pin groove at the moment because the inner diameter of the pin groove is smaller than the inner diameter of the plug groove, and the backing plate can be stably mounted on the surface of the steel plate because the diameter of the backing plate is larger than the inner diameter of the thread groove.
Preferably, the wire holes are formed in two sides of the top of the insulating sleeve, the diameter of a through hole in one side of the insulating sleeve is smaller than that of the first electromagnet, the diameter of the through hole is larger than that of a movable rod, the first electromagnet and the second electromagnet can be electrically connected with the resistor disc conveniently through the wire holes, the abrasion of the resistor disc can be utilized to cause the gradual reduction of the cross section area, the resistance is increased, and the magnetic force of the first electromagnet and the magnetic force of the second electromagnet are further reduced.
Preferably, the first electromagnet and the second electromagnet are arranged in opposite directions, the first electromagnet and the permanent magnet are arranged in opposite directions, the permanent magnet is of an annular structure, and the inner diameter of the permanent magnet is larger than the rod diameter of the movable rod.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, under the condition that the length of the resistor disc is unchanged, the thickness of the resistor disc is thinned and the cross section area is reduced due to friction between the brake disc and the resistor disc, so that the current flowing through the first electromagnet and the second electromagnet is reduced, the magnetic attraction between the first electromagnet and the permanent magnet is reduced to be smaller than the mutual attraction between the first electromagnet and the permanent magnet, the first electromagnet moves towards the permanent magnet to push the positioning mechanism to approach the inserting connection rod at the bottom of the sensor body, and then the inserting connection rod can be clamped through the four movable frames, so that the situation of preventing the alarm from loosening and skewing is achieved.
2. According to the invention, when the movable frame slides in the mounting bracket, the guide block can also slide on the surface through the limit of the slide rod, at the moment, the support rod, the rotating frame and the rubber gasket can be driven to move up and down through the linkage rod, the fixed frame and the hinge piece, the motion space of the base plate and the sensor body in the vertical direction can also be limited through the rubber gasket and the rotating frame, along with the abrasion of the resistor, the current between the first electromagnet and the second electromagnet is reduced, so that the magnetic attraction between the first electromagnet and the second electromagnet is weakened, and the downward moving distance of the support rod is increased until the magnetic attraction is smaller than the mutual attraction between the first electromagnet and the permanent electromagnet, so that the extrusion force of the rubber gasket on the base plate can be improved, and the anti-falling effect is achieved.
3. According to the invention, the sensor body can be conveniently installed through the plugging rod and the plugging groove, and then the sensor body is further installed through the thread groove and the thread groove, so that when the brake pad is worn to be flush with the top of the sensor body, the sensor can give an alarm, and along with the wear of the resistor pad, the current passing through the sensor body is increased, so that the alarm signal of the sensor is also gradually enhanced.
Drawings
FIG. 1 is a schematic perspective view of an alarm sensor for an automobile brake pad according to the present invention;
FIG. 2 is a schematic diagram showing the assembly structure of a positioning mechanism and a release preventing mechanism of an alarm sensor for an automobile brake pad;
FIG. 3 is a schematic diagram of a positioning mechanism of an alarm sensor for an automobile brake pad according to the present invention;
FIG. 4 is a schematic diagram of a movable frame of an alarm sensor for an automobile brake pad according to the present invention;
FIG. 5 is a schematic view showing a partial cross-sectional structure of an alarm sensor for an automobile brake pad according to the present invention;
FIG. 6 is a schematic diagram of a structure of a release mechanism of an alarm sensor for an automobile brake pad according to the present invention;
FIG. 7 is a schematic view of a mounting cavity structure of an alarm sensor for an automotive brake pad according to the present invention;
FIG. 8 is a schematic diagram showing a cross-sectional structure of a brake pad of an alarm sensor for an automobile brake pad according to the present invention.
In the figure:
a steel plate; 11. a thread groove; 12. a mounting cavity; 13. a pin slot; 14. a plug-in groove;
an alarm; 21. a sensor body; 22. a backing plate; 23. inserting a connecting rod; 24. a threaded tube; 25. a sensor pin;
a brake pad; 31. a resistor sheet;
a positioning mechanism; 41. a mounting bracket; 42. a movable rod; 43. a limiting hole; 44. a movable clamp; 441. a mounting shaft; 442. a torsion spring; 45. a moving rack; 46. a track; 47. a limit groove; 48. an insulating sleeve; 481. a first electromagnet; 482. a second electromagnet; 483. a permanent magnet; 49. a fixing frame;
an anti-drop mechanism; 51. a rotating frame; 52. a rubber gasket; 53. a rotating shaft; 54. a guide block; 55. a slide bar; 56. a limiting plate; 57. a linkage rod; 58. a hinge; 59. and (5) supporting the rod.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1, 2, 3, 4, 5, 7 and 8, the present invention provides a technical solution: the alarm sensor for the automobile brake pad comprises an alarm 2, a steel plate 1 and a plurality of brake pads 3 fixedly installed at the top of the steel plate, wherein two installation cavities 12 are formed in the steel plate 1; a positioning mechanism 4 and an anti-falling mechanism 5 are arranged in the mounting cavity 12, and the anti-falling mechanism 5 is positioned above the positioning mechanism 4;
the positioning mechanism 4 comprises an insulating sleeve 48 and a mounting bracket 41, the insulating sleeve 48 is fixedly arranged on two sides of the inner cavity of the mounting cavity 12, the mounting bracket 41 is arranged on one side of the insulating sleeve 48, a first electromagnet 481, a second electromagnet 482 and a permanent magnet 483 are arranged in the inner cavity of the insulating sleeve 48, the first electromagnet 481 is positioned between the second electromagnet 482 and the permanent magnet 483, one side of the permanent magnet 483 is fixedly connected with the inner wall of the insulating sleeve 48, the second electromagnet 482 is fixedly connected with the inner wall of the insulating sleeve 48, one side of the first electromagnet 481 is fixedly connected with a movable rod 42, one end of the movable rod 42 penetrates through the insulating sleeve 48, a movable frame 45 is arranged on the inner side of the mounting bracket 41, one side of the mounting bracket 41 is provided with a limiting hole 43, one end of the movable rod 42 penetrates through the limiting hole 43, one end of the movable rod 42 is fixedly connected with the center of a side plate of the movable frame 45, two mounting shafts 441 are fixedly arranged on the inner side of the movable frame 45, the top and the bottom ends of the two mounting shafts 441 penetrate through the movable frame 45, two movable clamps 44 are symmetrically arranged on one side of the movable frame 45, one end of the movable clamps 44 extends to the inner side of the movable frame 45, one end of the movable clamp 44 is movably sleeved on the surface of the movable clamp 441, one end of the movable clamp 442 is fixedly connected with the movable frame 442, the movable frame 442 is fixedly connected with the movable frame 49, and the movable frame 442 is fixedly connected with the movable frame 45; the two ends of the movable frame 45 are respectively provided with a track 46, one side of each track 46 is fixedly connected with the inner wall of the mounting bracket 41, the tracks 46 are in sliding connection with the movable frame 45, the two ends of the movable frame 45 are respectively provided with a limit groove 47, and the section width of each limit groove 47 is larger than the thickness of the movable clamp 44; the brake pad 3 is internally provided with a resistor 31, and the resistor 31 is electrically connected with the first electromagnet 481 and the second electromagnet 482, respectively.
The working principle of the embodiment is as follows: in the running process of the automobile, each time the automobile brakes, the brake pad 3 can rub against the automobile brake disc, so that the brake pad 3 is gradually worn and thinned, the state and the thickness of the brake pad are required to be detected, the warning and alarming functions can be achieved through some sensors, the sensor body 21 is relatively stable in the initial installation process, but the sensor body 21 can be subjected to loosening and falling after continuously jolt vibration in the running process of the automobile is transmitted to the sensor body 21, and the problem of skew can also occur;
first, during the gradual wear of the brake pad 3, the resistor 31 may wear, and the resistor 31 may be a wire resistor such as silver/copper/nichrome, and the resistance value=resistivity×length/cross-sectional area of such resistor, so that the cross-sectional area of the resistor 31 decreases as the resistor 31 wears, and the first electromagnet 481 and the second electromagnet 482 are connected in series with the resistor 31, and the length of the resistor 31 connected to the first electromagnet 481 and the second electromagnet 482 does not change, so that the resistance in the circuit connected to the resistor 31 continuously increases slowly, and the current passing through the first electromagnet 481 and the second electromagnet 482 decreases.
Since the current decreases, the magnetic attraction force between the first electromagnet 481 and the second electromagnet 482 also decreases, and since the permanent magnet magnetic force hardly changes, the mutual attraction force between the first electromagnet 481 and the second electromagnet 482 gradually becomes smaller than the mutual attraction force between the first electromagnet 481 and the permanent magnet 483, and therefore the first electromagnet 481 gradually moves toward the permanent magnet 483. When the first electromagnet 481 moves, the movable rod 42 moves along with the first electromagnet 481, then, the movable rod 42 can push the movable frame 45 to move, and the movable frame 45 slides along the surfaces of the two rails 46 under the limiting action of the rails 46, and as the movable frame 45 approaches the inserting-connecting rod 23, the two movable clips 44 on one side of the movable frame 45 can squeeze the positioning-inserting-connecting rod 23, and because of the action of the torsion spring 442, the two movable frames can also perform folding action in the process of positioning the inserting-connecting rod 23, so that the inserting-connecting rod 23 is convenient to be stably clamped.
Finally, the plugging rod 23 can be clamped by four movable clamps 44 around the plugging rod 23, so that the problem that the sensor is loose and inclined when the automobile runs is prevented, the plugging rod 23 is clamped in the long-term use process, the movable condition can not occur, and the threaded pipe 24 in the threaded groove 11 can be prevented from being separated.
Examples
According to the embodiment shown in fig. 2, 3 and 6, the alarm 2 is composed of a sensor body 21 and a sensor pin 25, wherein a backing plate 22 is fixedly connected to the bottom of the sensor body 21, a threaded pipe 24 is fixedly connected to the center of the bottom of the backing plate 22, a plug rod 23 is fixedly connected to the bottom of the threaded pipe 24, the sensor pin 25 sequentially passes through the plug rod 23 and the threaded pipe 24, and one end of the sensor pin 25 is fixedly connected to the bottom of the sensor body 21; the anti-drop mechanism 5 comprises a supporting rod 59 and a linkage rod 57, wherein a rotating shaft 53 is fixedly arranged at the top of the supporting rod 59, a rotating frame 51 is rotatably connected to the top of the rotating shaft 53, a rubber gasket 52 is fixedly connected to the bottom of one end of the rotating frame 51, a guide block 54 is fixedly connected to one side of the supporting rod 59, a sliding rod 55 is arranged on the inner surface of the guide block 54, two ends of the linkage rod 57 are rotatably connected with hinge pieces 58, two ends of the two hinge pieces 58 are fixedly connected with the bottom of the supporting rod 59 and the top of a fixing frame 49 respectively, and the linkage rod 57 is positioned between the supporting rod 59 and the fixing frame 49; the top of the slide bar 55 is fixedly connected with the top of the cavity 12, the bottom of the slide bar 55 is fixedly connected with a limiting plate 56, the diameter of the slide bar 55 is smaller than the inner diameter of the guide block 54, the inner diameter of the guide block 54 is smaller than the diameter of the limiting plate 56, and the rubber gasket 52 is arranged above the backing plate 22.
The working principle of the embodiment is as follows: firstly, the moving frame 45 starts to move under the pushing of the movable rod 42, after the moving frame 45 moves, since one hinge piece 58 at the bottom of the linkage rod 57 is fixedly connected with the top of the fixed frame 49, the fixed frame 49 drives the linkage rod 57 to move together through the hinge piece 58, then, since the linkage rod 57 is rotationally connected with the hinge pieces 58 at the top and bottom, the linkage rod 57 drives the supporting rod 59 to move together, an inclined state can occur, then, when the supporting rod 59 moves, since the guide block 54 slides up and down along the surface of the sliding rod 55 under the limiting action of the sliding rod 55, the guide block 54 can move up and down together with the supporting rod 59 when moving, finally, the rotating frame 51 at the top of the supporting rod 59 can drive the rubber gasket 52 to squeeze the backing plate 22, and since the rubber gasket 52 has a certain elasticity, the backing plate 22 can be prevented from being crushed, and the anti-falling effect can be achieved.
Examples
According to the embodiment shown in fig. 2, 7 and 8, a plugging groove 14 is arranged in the center of the installation cavity 12, the plugging groove 14 is communicated with the installation cavity 12, a thread groove 11 is arranged above the plugging groove 14, a pin groove 13 is arranged below the plugging groove 14, the inner diameter of the pin groove 13 is smaller than that of the plugging groove 14, the inner diameter of the plugging groove 14 is smaller than that of the thread groove 11, and an internal thread matched with the thread pipe 24 is arranged inside the thread groove 11; the sensor body 21 is electrically connected with the resistor disc 31, and the diameter of the backing plate 22 is larger than the inner diameter of the thread groove 11, so that the sensor body 21 can be conveniently installed; the two sides of the top of the insulating sleeve 48 are provided with wire holes, the diameter of a through hole on one side of the insulating sleeve 48 is smaller than that of the first electromagnet 481, the diameter of the through hole is larger than that of the movable rod 42, the first electromagnet 481 can be prevented from being separated from the insulating sleeve 48 under the limiting effect of the through hole on one side of the insulating sleeve 48, the control and positioning of the inserting rod 23 are prevented from being influenced, the first electromagnet 481 and the second electromagnet 482 of one insulating sleeve 48 can be conveniently connected with the resistor 31 in series through the wire holes, the abrasion of the resistor 31 can be utilized to reduce the cross-sectional area, and under the condition that the length is unchanged, the resistance can be gradually increased, and the magnetic force of the first electromagnet 481 and the magnetic force of the second electromagnet 482 can be further reduced; the first electromagnet 481 and the second electromagnet 482 are arranged in opposite directions, the first electromagnet 481 and the permanent magnet 483 are arranged in opposite directions, the permanent magnet 483 is of an annular structure, the inner diameter of the permanent magnet 483 is larger than the rod diameter of the movable rod 42, and the permanent magnet 483 is magnetized in the axial direction.
The working principle of the embodiment is as follows: before the alarm 2 is installed, the two rotating frames 51 are rotated, the rubber gasket 52 at the bottom is guaranteed to be positioned at one end of the two rotating frames 51, which is opposite to the rotating frames 51, firstly, the sensor pin 25 at the bottom of the sensor body 21 sequentially passes through the thread groove 11, the inserting groove 14 and the pin groove 13, at the moment, the inserting rod 23 can be inserted into the inserting groove 14, the inserting rod 23 can be blocked by the pin groove 13 because the inner diameter of the pin groove 13 is smaller than that of the inserting groove 14, secondly, the rubber gasket 22 can be stably installed on the surface of the steel plate 1 because the diameter of the gasket 22 is larger than that of the thread groove 11, after the inserting rod is completely inserted into the inserting groove 14, the step of initially installing the sensor body 21 is completed, then, the sensor body 21 can be rotated, the thread pipe 24 can be slowly connected with the thread groove 11 in the rotating process, and the gasket 22 and the surface of the steel plate 1 can be tightly installed after the thread groove 11 is completely installed in the thread groove 11, finally, the rubber gasket 22 can be manually attached to the gasket 52 through the rotating shaft 53, and the vibration gasket can be prevented from falling off in the vertical direction because of the gasket 52 is arranged.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims (9)

1. The alarm sensor for the automobile brake pad comprises an alarm (2), a steel plate (1) and a plurality of brake pads (3) fixedly installed on the top of the steel plate, wherein two installation cavities (12) are formed in the steel plate (1); the method is characterized in that: a positioning mechanism (4) and a release preventing mechanism (5) are arranged in the mounting cavity (12), and the release preventing mechanism (5) is positioned above the positioning mechanism (4);
the positioning mechanism (4) comprises an insulating sleeve (48) and a mounting bracket (41), the two sides of the inner cavity of the mounting cavity (12) are fixedly provided with the insulating sleeve (48), one side of the insulating sleeve (48) is provided with the mounting bracket (41), the inner cavity of the insulating sleeve (48) is provided with a first electromagnet (481), a second electromagnet (482) and a permanent magnet (483), the first electromagnet (481) is positioned between the second electromagnet (482) and the permanent magnet (483), one side of the permanent magnet (483) is fixedly connected with the inner wall of the insulating sleeve (48), one side of the second electromagnet (482) is fixedly connected with the inner wall of the insulating sleeve (48), one side of the first electromagnet (481) is fixedly connected with a movable rod (42), one end of the movable rod (42) penetrates through the insulating sleeve (48), the inner side of the mounting bracket (41) is provided with a movable frame (45), one side of the mounting bracket (41) is provided with a limiting hole (43), one end of the movable rod (42) penetrates through the limiting hole (43), one end of the movable rod (42) is fixedly connected with the movable frame (45), one end of the movable rod (45) is fixedly connected with the central frame (45), two movable frames (441) are arranged on the inner sides of the two shafts (441) and the two shafts (45) are fixedly arranged on the two shafts (45), two movable clamps (44) are symmetrically arranged on one side of the movable frame (45), one end of each movable clamp (44) extends to the inner side of the movable frame (45), one end of each movable clamp (44) is movably sleeved on the surface of a mounting shaft (441), a torsion spring (442) is mounted on the surface of the mounting shaft (441), one end of each torsion spring (442) is fixedly connected with the movable clamp (44), the other end of each torsion spring (442) is fixedly connected with the movable frame (45), and a fixing frame (49) is fixedly connected with the center of the top of the movable frame (45);
the inside resistance card (31) that is provided with of brake block (3), resistance card (31) are connected with first electro-magnet (481) and second electro-magnet (482) electricity respectively.
2. An alarm sensor for an automotive brake pad according to claim 1, wherein: the utility model discloses a movable clamp, including movable frame (45), track (46) are all provided with at movable frame (45) both ends, track (46) one side fixed connection installing support (41) inner wall, track (46) and movable frame (45) sliding connection, spacing groove (47) have all been seted up at movable frame (45) both ends, spacing groove (47) section width is greater than movable clamp (44) thickness.
3. An alarm sensor for an automotive brake pad according to claim 2, wherein: the alarm (2) comprises a sensor body (21) and a sensor pin (25), a base plate (22) is fixedly connected to the bottom of the sensor body (21), a threaded pipe (24) is fixedly connected to the center of the bottom of the base plate (22), a plug rod (23) is fixedly connected to the bottom of the threaded pipe (24), the sensor pin (25) sequentially penetrates through the plug rod (23) and the threaded pipe (24), and one end of the sensor pin (25) is fixedly connected to the bottom of the sensor body (21).
4. An alarm sensor for an automotive brake pad according to claim 3, wherein: the anti-drop mechanism (5) comprises a supporting rod (59) and a linkage rod (57), a rotating shaft (53) is fixedly arranged at the top of the supporting rod (59), a rotating frame (51) is rotationally connected to the top of the rotating shaft (53), a rubber gasket (52) is fixedly connected to one end bottom of the rotating frame (51), a guide block (54) is fixedly connected to one side of the supporting rod (59), a sliding rod (55) is arranged on the inner surface of the guide block (54), hinge pieces (58) are rotationally connected to two ends of the linkage rod (57), two ends of the hinge pieces (58) are fixedly connected with the bottom of the supporting rod (59) and the top of a fixing frame (49) respectively, and the linkage rod (57) is located between the supporting rod (59) and the fixing frame (49).
5. An alarm sensor for an automotive brake pad as defined in claim 4, wherein: the top of the sliding rod (55) is fixedly connected to the top of the inner cavity of the installation cavity (12), the bottom of the sliding rod (55) is fixedly connected with a limiting plate (56), the diameter of the sliding rod (55) is smaller than the inner diameter of the guide block (54), the inner diameter of the guide block (54) is smaller than the diameter of the limiting plate (56), and the rubber gasket (52) is located above the base plate (22).
6. An alarm sensor for an automotive brake pad as defined in claim 5, wherein: the novel socket is characterized in that a plug groove (14) is formed in the center of the installation cavity (12), the plug groove (14) is communicated with the installation cavity (12), a thread groove (11) is formed in the upper portion of the plug groove (14), a pin groove (13) is formed in the lower portion of the plug groove (14), the inner diameter of the pin groove (13) is smaller than that of the plug groove (14), the inner diameter of the plug groove (14) is smaller than that of the thread groove (11), and an internal thread matched with the thread pipe (24) is formed in the thread groove (11).
7. An alarm sensor for an automotive brake pad as defined in claim 6, wherein: the sensor body (21) is electrically connected with the resistor disc (31), and the diameter of the backing plate (22) is larger than the inner diameter of the thread groove (11).
8. An alarm sensor for an automotive brake pad as defined in claim 7, wherein: wire holes are formed in two sides of the top of the insulating sleeve (48), the diameter of a through hole on one side of the insulating sleeve (48) is smaller than that of the first electromagnet (481), and the diameter of the through hole is larger than that of the movable rod (42).
9. An alarm sensor for an automotive brake pad as defined in claim 8, wherein: the first electromagnet (481) and the second electromagnet (482) are oppositely arranged, the first electromagnet (481) and the permanent magnet (483) are oppositely arranged, the permanent magnet (483) is of an annular structure, and the inner diameter of the permanent magnet (483) is larger than the rod diameter of the movable rod (42).
CN202310394730.3A 2023-04-13 2023-04-13 Alarm sensor for automobile brake pad Active CN116336115B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310394730.3A CN116336115B (en) 2023-04-13 2023-04-13 Alarm sensor for automobile brake pad

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310394730.3A CN116336115B (en) 2023-04-13 2023-04-13 Alarm sensor for automobile brake pad

Publications (2)

Publication Number Publication Date
CN116336115A CN116336115A (en) 2023-06-27
CN116336115B true CN116336115B (en) 2023-09-29

Family

ID=86877298

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310394730.3A Active CN116336115B (en) 2023-04-13 2023-04-13 Alarm sensor for automobile brake pad

Country Status (1)

Country Link
CN (1) CN116336115B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0704639A1 (en) * 1994-08-10 1996-04-03 Ferodo Limited Brake wear indicator
JPH10252791A (en) * 1997-03-14 1998-09-22 Nisshinbo Ind Inc Abrasion alarming device for lining
CN209671481U (en) * 2019-01-17 2019-11-22 广东富华重工制造有限公司 The mounting structure of braking automobile pad wear alarm sensor
CN111043196A (en) * 2019-12-10 2020-04-21 温州科丰汽车零部件有限公司 Automobile brake alarm sensor
CN111750012A (en) * 2020-06-08 2020-10-09 熊正怀 Clutch friction plate wear detection mechanism
CN214367414U (en) * 2020-11-09 2021-10-08 临沂合力电子有限公司 Combined brake pad wear alarm sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0704639A1 (en) * 1994-08-10 1996-04-03 Ferodo Limited Brake wear indicator
JPH10252791A (en) * 1997-03-14 1998-09-22 Nisshinbo Ind Inc Abrasion alarming device for lining
CN209671481U (en) * 2019-01-17 2019-11-22 广东富华重工制造有限公司 The mounting structure of braking automobile pad wear alarm sensor
CN111043196A (en) * 2019-12-10 2020-04-21 温州科丰汽车零部件有限公司 Automobile brake alarm sensor
CN111750012A (en) * 2020-06-08 2020-10-09 熊正怀 Clutch friction plate wear detection mechanism
CN214367414U (en) * 2020-11-09 2021-10-08 临沂合力电子有限公司 Combined brake pad wear alarm sensor

Also Published As

Publication number Publication date
CN116336115A (en) 2023-06-27

Similar Documents

Publication Publication Date Title
KR101977714B1 (en) Wear detect device of brake pad
CN116336115B (en) Alarm sensor for automobile brake pad
US6637262B2 (en) Electrical wear sensor for disc brake
CN107975555A (en) A kind of brake friction plate abrasion degree detection device
CN103671635A (en) Reinforcement type electromagnetic mechanical brake
CA1071734A (en) Point sensor mounting apparatus
KR20110060243A (en) Disk brake
JP2008089012A (en) Disk brake device
CN209877871U (en) Brake disc real vehicle end face runout detection device
CN210027387U (en) Conveniently fixed automobile wheel speed sensor
CN116424292A (en) Parking brake device for electromechanical brake system
CN209159674U (en) A kind of electronic unmanned trolley parking system
CN212672286U (en) Brake caliper, brake system and automobile
CN203585157U (en) Electromagnetic mechanical brake
CN113735010A (en) Multi-loop electromagnetic brake
CN207687232U (en) A kind of brake friction plate abrasion degree detection device
CN209671481U (en) The mounting structure of braking automobile pad wear alarm sensor
CN220535651U (en) Sensor with detect and do not fall round vibrations
CN220873962U (en) Brake alarm sensor convenient to dismouting
CN219675646U (en) Automobile brake pad wear resistance detection device
CN218031171U (en) Disc brake caliper
CN109099076B (en) Brake for movable shaft
CN211343814U (en) Electronic parking caliper
CN221110631U (en) Self-adaptive follow-up tightening fixing device for automobile tail lamp
WO2012162410A2 (en) Brake pad retention system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant