CN214888533U

CN214888533U - Stroke disconnection type abrasion alarm probe for drum type automobile brake lining

Info

Publication number: CN214888533U
Application number: CN202121223253.7U
Authority: CN
Inventors: 田孝建
Original assignee: Hubei Shenou Sensor Technology Co ltd
Current assignee: Hubei Shenou Sensor Technology Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-11-26
Anticipated expiration: 2031-06-02

Abstract

The utility model relates to a disconnected formula wearing and tearing warning probe of stroke of drum-type car brake facing belongs to auto-parts equipment technical field. The stroke disconnection type abrasion warning probe of the drum type automobile brake lining comprises a clamping bush, a connector and a sliding body; a sliding body is movably arranged inside the upper end of the clamping bush; a connector is arranged in the clamping bush below the sliding body; the connector is connected with the sliding body in a sliding manner. The stroke disconnection type abrasion alarm probe for the drum type automobile brake lining has the advantages of compact structure and ingenious design, can be repeatedly used, and the brake lining does not need to be replaced when replaced, so that the problems of resource waste and inconvenience in maintenance existing when the existing abrasion probe is used by an automobile brake system are solved, and the use requirement of the automobile brake system is met.

Description

Stroke disconnection type abrasion alarm probe for drum type automobile brake lining

Technical Field

The utility model relates to a disconnected formula wearing and tearing warning probe of stroke of drum-type car brake facing belongs to auto-parts equipment technical field.

Background

The brake lining in the automobile brake system is arranged on the brake shoe iron, and the automobile brake system achieves the deceleration or braking of the automobile in a mode of rubbing the brake lining in the automobile braking process. When the thickness of the brake lining is too low, the thickness of the brake lining can not only increase the braking distance of the automobile, but also cause the failure of the braking system of the automobile when the thickness of the brake lining is too low, thereby causing traffic accidents. Therefore, the thickness of the brake lining of the automobile needs to be detected, and when the thickness of the brake lining is lower than a certain value, people are reminded to replace the brake lining.

Currently, automobiles on the market generally use a wear alarm sensor to detect the thickness of a brake lining. The utility model discloses a wear alarm sensor that current wear alarm sensor is as the utility model patent of grant bulletin number CN211288542U, it is to install inductive probe on the brake shoe horseshoe, when brake facing wearing and tearing to the position that needs to be changed, can wear and tear inductive probe's terminal surface and break its inside wire mill off, and wear alarm sensor will report to the police after the wire mill off to reach the purpose of reminding the driver to change the brake facing. Although the existing abrasion probe for the automobile brake lining can meet the requirement of normal use, the existing abrasion probe can only be used once and cannot be reused, and the problems of resource waste caused by repeated utilization and inconvenient maintenance caused by the need of replacing the abrasion probe and a connecting wire together when the brake lining is replaced exist. Therefore, a new alarm probe needs to be developed to solve the above problems of the existing wear probe used in the automobile brake system.

Disclosure of Invention

The utility model aims to provide a: the automobile brake system is compact in structure and ingenious in design, and solves the problems of resource waste and inconvenience in maintenance existing when the existing abrasion probe is used in the automobile brake system.

The technical scheme of the utility model is that:

a stroke disconnection type abrasion alarm probe for a drum type automobile brake lining comprises a clamping bush, a connector and a sliding body; the method is characterized in that: a sliding body is movably arranged inside the upper end of the clamping bush; a connector is arranged in the clamping bush below the sliding body; the connector is connected with the sliding body in a sliding manner.

The sliding body comprises a conducting ring; the conducting ring is arranged at the lower end of the sliding body; the connector comprises two groups of lap joint elastic sheets; two groups of lap joint elastic sheets are arranged at the upper end of the connector; the lapping elastic sheet is intermittently and slidably connected with the conducting ring.

The whole sliding body is of a revolving body structure, and the middle part of the sliding body is provided with a clamping part which is thick in the middle and thin at two ends; the upper part of the clamping part is provided with a conical avoiding part; the bottom end of the sliding body is provided with an assembly part in a stepped cylindrical structure; the bottom end of the assembly part is embedded with a conducting ring.

The sliding body is made of an insulating material;

elastic hanging claws are symmetrically arranged on the circumferential surface of the upper end of the clamping bush; a plurality of limiting pressing plates are arranged on the circumferential surface of the clamping bush below the elastic hanging claw; two groups of limiting elastic sheets are arranged inside the clamping bush below the limiting pressure plate in a vertically staggered manner; the inner side of the lower end of the clamping bush is provided with a limiting stop sheet; the inboard symmetry of joint bush of spacing separation blade below is provided with the elastic support board.

The connector comprises a connector body, a lap joint elastic sheet, a lead and a wiring sleeve; two groups of through holes are arranged inside the connector; the lower end of the elastic hanging claw is bent into a U shape and then inserted into the through hole; the inner part of the lower end of the elastic hanging claw is clamped with a lead through a wiring sleeve; the wire passes through the elastic hanging claw and then extends to the outer side of the connector.

The lower end bending part of the elastic hanging claw is in a wave-shaped structure; the lower end of the elastic hanging claw is bent outwards to form a positioning part.

The connector comprises a connector body, a lap joint elastic sheet and a lead; the connecting body is of an integrated structure; two groups of lap joint elastic sheets are embedded at the upper end of the connecting body; two groups of wires are embedded at the lower end of the connector; the conducting wires are connected with the corresponding lapping elastic sheets.

The connecting body is of a revolving body structure; the connector is provided with a clamping conical surface.

The utility model has the advantages that:

the stroke disconnection type abrasion alarm probe for the drum type automobile brake lining has the advantages of compact structure and ingenious design, can be repeatedly used, and the brake lining does not need to be replaced when replaced, so that the problems of resource waste and inconvenience in maintenance existing when the existing abrasion probe is used by an automobile brake system are solved, and the use requirement of the automobile brake system is met.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure in the direction A-A in FIG. 1;

fig. 3 is a schematic structural diagram of a slider according to the present invention;

fig. 4 is a schematic structural diagram of the connecting head of the present invention;

FIG. 5 is a schematic structural view of the connector of the present invention;

FIG. 6 is a schematic structural view of the lap joint spring plate and the connecting wire of the present invention;

fig. 7 is a schematic structural view of the lap joint elastic sheet of the present invention;

fig. 8 is a schematic structural view of the lap joint elastic sheet connecting wire of the present invention;

FIG. 9 is a schematic structural view of the clamping bush of the present invention;

fig. 10 is a schematic view of an assembly structure of the present invention;

FIG. 11 is a schematic structural view of an operating state;

fig. 12 is a schematic diagram of a deformed structure of the slider according to the present invention;

fig. 13 is a schematic diagram of a deformation structure of the present invention;

fig. 14 is a schematic diagram of a deformation structure of the connector of the present invention.

In the figure: 1. clamping the bushing; 2. a connector; 3. a slider; 4. conducting rings; 5. overlapping the elastic sheets; 6. a clamping part; 7. an avoidance part; 8. an assembling portion; 9. elastic hanging claws; 10. a limiting pressure plate; 11. a limiting elastic sheet; 12. a limiting baffle plate; 13. an elastic support plate; 14. a linker; 15. a wire; 16. clamping the conical surface; 17. a through hole; 18. a wiring sleeve; 19. a brake lining; 20. a brake shoe; 21. a positioning part; 23. a gland; 24. wear-resistant balls; 25. and (4) a thimble.

Detailed Description

The stroke disconnection type wear alarm probe for the drum type automobile brake lining comprises a clamping bush 1, a connector 2 and a sliding body 3 (see the attached figures 1 and 2 in the specification).

Elastic hanging claws 9 are symmetrically arranged on the circumferential surface of the upper end of the clamping bush 1 (see the attached figure 9 of the specification); a plurality of limiting pressing plates 10 are arranged on the circumferential surface of the clamping bush 1 below the elastic hanging claw 9 (refer to the attached figures 2 and 9 in the specification); the elastic hanging claws 9 are in an outward opening state under the condition of not bearing force (see the attached figure 1 of the specification); during assembly, the elastic hanging claws 9 can be retracted into the clamping bush 1 in a mode of inwards pressing the elastic hanging claws 9, then one end of the clamping bush 1 is inserted into an assembly hole in the brake shoe iron 20, the elastic hanging claws 9 are loosened, and the clamping bush 1 is pushed to enable the limiting pressing plate 10 of the clamping bush 1 to be abutted against the lower end face of the brake shoe iron 20; at this time, the elastic hanging claw 9 is opened under the action of self elastic force, so that the claw head of the elastic hanging claw is abutted against the upper end face of the brake shoe horseshoe 20 (see the attached figure 11 of the specification); when the brake shoe is assembled in this way, the clamping bush 1 can be fixedly arranged on the brake shoe horseshoe 20 through the elastic hanging claw 9 and the limiting pressing plate 10.

The inner limiting elastic sheets 11 of the clamping bush 1 below the limiting pressure plate 10 can be one group or multiple groups of limiting elastic sheets 11; the two groups of limiting elastic sheets 11 are preferably arranged in a vertically staggered mode (see the attached figure 9 in the specification). A sliding body 3 is movably arranged inside the upper end of the clamping bush 1 (see the attached figure 1 in the specification).

The sliding body 3 is a revolving body structure as a whole and is made of an insulating material (see the attached figure 3 in the specification). The middle part of the sliding body 3 is provided with a clamping part 6 with thick middle part and thin two ends; the upper part of the clamping part 6 is provided with a conical avoiding part 7; the bottom end of the sliding body 3 is provided with an assembly part 8 with a step cylindrical structure; the bottom end of the mounting portion 8 is fitted with a conductive ring 4 (see fig. 3 in the specification).

After the slider 3 is assembled inside the clamping bush 1, the upper end of the slider 3 extends to the outside of the clamping bush 1 (see the attached figure 1 in the specification). The purpose of such a placement of slider 3 is: when the automobile brake system works and is worn to an alarm position through the friction of the brake lining, the automobile brake system can firstly press the sliding body 3 to enable the sliding body to move downwards relative to the clamping bush 1, and therefore smooth work of the alarm probe is ensured.

In addition, when the sliding body 3 is assembled in the clamping bush 1, the avoiding part 7 and the elastic hanging claw 9 of the clamping bush 1 are arranged oppositely (see the attached figure 1 in the specification); two sets of spacing shell fragments 11 of inside of joint bush 1 are laminated sliding connection with joint portion 6 of sliding body 3 all the time under the effect of self elasticity (refer to description attached figure 1).

The purpose of providing the avoiding part 7 in a conical shape on the sliding body 3 is as follows: so that the assembly of the sliding body 3 is behind the inside of joint bush 1, in assembling process to joint bush 1, dodge portion 7 and can hang claw 9 for the elasticity that contracts and provide certain space that contracts to avoided elasticity to hang claw 9 and can't contract to the inside of joint bush 1 and take place the problem that joint bush 1 can't install.

The purpose of designing the clamping part 6 of the sliding body 3 into a shape of thick middle and thin two ends is as follows: so that when slider 3 assembles in the inside of joint bush 1, the spacing shell fragment 11 that is in the upper portion position can contact with the position that leans on down in the middle of joint portion 6, and the spacing shell fragment 11 that is in the lower part position can contact with 6 lower part positions of joint portion. At the moment, the sliding body 3 keeps the relative position with the clamping bush 1 unchanged under the pressure of the two groups of limiting elastic sheets 11 (refer to the attached figures 1 and 10 in the specification); when the sliding body 3 is pressed and moves downwards for a distance relative to the clamping bush 1, the limiting elastic pieces 11 at the upper portion can be in contact with the lower portion of the middle of the clamping portion 6, the limiting elastic pieces 11 at the upper portion are in contact with the lower portion of the clamping portion 6 (see the attached drawing 11 in the specification), the two sets of limiting elastic pieces 11 are located on the upper side and the lower side of the middle of the clamping portion 6, certain clamping force can be formed on the clamping portion 6, and therefore the purpose that the sliding body 3 is fixed to prevent the sliding body and the clamping bush 1 from moving easily is achieved.

As a modification of the slider 3, a wear-resistant ball 24 is mounted on the upper end of the slider 3 through a screw-connected gland 23 (see fig. 12 in the specification). The purpose of such an improvement to the slider 3 is: when the automobile brake system works, the sliding body 3 can be pressed by the anti-wear ball 24 to move downwards, so that the problem of abrasion caused by direct contact between the automobile brake system and the sliding body 3 can be avoided.

A limiting stop piece 12 is arranged on the inner side of the lower end of the clamping bush 1; and elastic support plates 13 (see the attached figure 9 in the specification) are symmetrically arranged on the inner sides of the clamping bushings 1 below the limiting blocking pieces 12. The spring support plate 13 is in an unstressed condition, in its inwardly splayed condition. The clamping bush 1 is internally provided with a connector 2 (refer to the specification) through a limiting stop piece 12 and an elastic support plate 13.

The connector 2 comprises a connector 14, a lead 15, a splicing spring 5 and a wiring sleeve 18. Connecting body 14 is of a solid of revolution structure; the connecting body 14 is provided with a clamping conical surface 16 (see the description and the attached figure 5). The purpose of this arrangement of the connecting body 14 is: so that in the process of assembling the connecting body 14 to the clamping bush 1, the connecting body 14 can be inserted into the clamping bush 1 from the bottom, in this process, the connecting body 14 can press the elastic support plate 13 to move outwards, when the top end of the connecting body 14 abuts against the limiting stop piece 12, the elastic support plate 13 abuts against the clamping conical surface 16 of the connecting body 14 under the action of the self elastic force (see the attached drawing 2 in the specification), so that the connecting body 14 can be fixedly mounted at the lower end of the clamping bush 1 under the action of the limiting stop piece 12 and the elastic support plate 13.

The interior of the connecting body 14 is provided with two sets of through holes 17 (see the description and the attached figure 5). The lap joint elastic sheet 5 is inserted in the through hole 17. The lower end of the lapping elastic sheet 5 is bent into a U shape, and the bent part of the lower end of the lapping elastic sheet 5 is of a wave-shaped structure; the lower end of the overlapping elastic sheet 5 is bent outwards to form a positioning part 21 (see the attached figure 7 in the specification). So set up the aim at of overlap joint shell fragment 5: after the lapping elastic sheet 5 is inserted into the through hole 17 through the bottom U-shaped structure, the positioning part 21 can be contacted and positioned with the top bayonet of the through hole 17, so that the lapping elastic sheet 5 is clamped in the through hole 17 under the action of the bottom U-shaped elastic force.

The bottom of the through hole 17 is provided with a boss (see the attached drawing 5 in the specification), and after the lower end of the overlapping elastic sheet 5 is inserted into the through hole 17, the through hole 17 can provide support for the overlapping elastic sheet 5 through the boss.

The inner part of the lower end of the lapping elastic sheet 5 is clamped with a lead 15 through a wiring sleeve 18; one end of the lead 15 passes through the lapping elastic sheet 5 and then extends to the outer side of the connector 2 (see the attached figure 4 in the specification). Wiring sleeve 18 is the tubular metal resonator, can insert wiring sleeve 18's inside back with the one end of wire 15 during the assembly, the mode that wiring sleeve 18 warp is compeled to rethread pressure, make wiring sleeve 18 and wire 15's one end fixed connection, then pass the overlap joint shell fragment 5 with the other end of wire 15 after, place wiring sleeve 18 in the inside of overlap joint shell fragment 5 lower extreme "U" type, 5 lower extreme "U" types of overlap joint shell fragment will extrude wiring sleeve 18 this moment, make overlap joint shell fragment 5 keep being connected electrically through wiring sleeve 18 and wire 15.

The lapping elastic sheet 5 is intermittently and slidably connected with the conducting ring 4. The lead 15 is electrically connected with a wear alarm sensor on the automobile; when the lapping elastic sheet 5 is in contact connection with the conducting ring 4, the abrasion alarm sensor forms a complete circuit through the conducting wire 15, the lapping elastic sheet 5 and the conducting ring 4, when the lapping elastic sheet 5 is separated from the conducting ring 4, the circuit is disconnected, and the abrasion alarm sensor of the automobile gives an alarm.

As an improvement of the utility model: the connector 2 comprises a connector 14, an overlapping elastic sheet 5 and a lead 15; the connecting body 14 is of a one-piece structure; two groups of lap joint elastic sheets 5 are embedded at the upper end of the connecting body 14; two groups of leads 15 are embedded at the lower end of the connecting body 14; the conducting wires 15 are connected with the corresponding lapping elastic sheets 5 (see the attached figure 14 in the specification).

After the stroke disconnection type abrasion alarm probe of the drum type automobile brake lining is assembled, when the automobile brake lining is abraded to an alarm position during working, an automobile brake system presses a sliding body 3 to enable the sliding body to move downwards relative to a clamping bush 1; in the process that the sliding body 3 moves downwards, the conducting ring 4 moves downwards relative to the lapping elastic sheet 5, and when the conducting ring 4 moves downwards to be separated from the lapping elastic sheet 5, the abrasion alarm sensor on the automobile gives an alarm to remind a driver of replacing the brake lining 19.

When people replace the brake lining 19, the sliding body 3 is manually pulled to reset, at the moment, the lapping elastic sheet 5 is reconnected with the conducting ring 4, and the abrasion alarm sensor on the automobile stops alarming.

As an improvement of the utility model: the slider 3 includes a thimble 25; the thimble 25 is arranged at the lower end of the sliding body 3; the connector 2 comprises two groups of lap joint elastic sheets 5; two groups of lap joint elastic sheets 5 are arranged at the upper end of the connector 2; the ends of the two groups of lap joint elastic sheets 5 are mutually lap-jointed; the thimble 25 is connected with one group of overlapping spring plates 5 in an abutting mode (see the attached figure 13 of the specification).

After the improvement, when the automobile brake lining is worn to the alarm position, the automobile brake system presses the sliding body 3 to move downwards relative to the clamping bush 1; in the process of moving the sliding body 3 downwards, the thimble 25 presses the corresponding lapping elastic sheet 5 to deform the lapping elastic sheet to separate from the other group of lapping elastic sheets 5. When the two groups of lap joint elastic sheets 5 are separated, the abrasion alarm sensor on the automobile gives an alarm to remind a driver of replacing the brake lining 19.

After people replace the brake lining 19, the sliding body 3 is manually pulled to reset, at the moment, the two groups of lap joint elastic sheets 5 are reconnected under the action of the elastic force of the lap joint elastic sheets, and the alarm of the abrasion alarm sensor on the automobile stops.

Claims

1. A stroke disconnection type abrasion warning probe for a drum type automobile brake lining comprises a clamping bush (1), a connector (2) and a sliding body (3); the method is characterized in that: a sliding body (3) is movably arranged inside the upper end of the clamping bush (1); a connector (2) is arranged in the clamping bush (1) below the sliding body (3); the connector (2) is connected with the sliding body (3) in a sliding way.

2. A stroke break wear warning probe for a drum brake lining according to claim 1, wherein: the sliding body (3) comprises a conductive ring (4); the conducting ring (4) is arranged at the lower end of the sliding body (3); the connector (2) comprises two groups of lap joint elastic sheets (5); two groups of lap joint elastic sheets (5) are arranged at the upper end of the connector (2); the lapping elastic sheet (5) is intermittently connected with the conducting ring (4) in a sliding way.

3. A stroke break wear warning probe for a drum brake lining according to claim 2, wherein: the middle part of the sliding body (3) is provided with a clamping part (6) which is thick in the middle and thin at two ends; the upper part of the clamping part (6) is provided with a conical avoiding part (7); the bottom end of the sliding body (3) is provided with an assembly part (8) with a step cylindrical structure; the bottom end of the assembly part (8) is embedded with a conductive ring (4).

4. A stroke break wear warning probe for a drum brake lining according to claim 3, wherein: elastic hanging claws (9) are symmetrically arranged on the circumferential surface of the upper end of the clamping bush (1); a plurality of limiting pressing plates (10) are arranged on the circumferential surface of the clamping bush (1) below the elastic hanging claw (9); a limiting elastic sheet (11) is arranged inside the clamping bush (1) below the limiting pressure plate (10); a limiting blocking piece (12) is arranged on the inner side of the lower end of the clamping bush (1); elastic support plates (13) are symmetrically arranged on the inner side of the clamping bush (1) below the limiting blocking piece (12).

5. A stroke break wear warning probe for a drum brake lining according to claim 2, wherein: the connector (2) comprises a connector (14), an overlapping elastic sheet (5), a lead (15) and a wiring sleeve (18); two groups of through holes (17) are arranged in the connecting body (14); the lower end of the lapping elastic sheet (5) is bent into a U shape and then inserted into the through hole (17); the inner part of the lower end of the lapping elastic sheet (5) is clamped with a lead (15) through a wiring sleeve (18); the lead (15) passes through the lapping elastic sheet (5) and then extends to the outer side of the connector (2).

6. The trip break wear warning probe for a drum brake lining according to claim 5, wherein: the lower end bending part of the lap joint elastic sheet (5) is in a wave-shaped structure; the lower end of the lapping elastic sheet (5) is bent outwards to form a positioning part (21).

7. A stroke break wear warning probe for a drum brake lining according to claim 2, wherein: the connector (2) comprises a connector (14), an overlapping elastic sheet (5) and a lead (15); the connecting body (14) is of an integrated structure; two groups of lap joint elastic sheets (5) are embedded at the upper end of the connecting body (14); two groups of leads (15) are embedded at the lower end of the connecting body (14); the conducting wires (15) are connected with the corresponding lapping elastic sheets (5).

8. A stroke break wear warning probe for a drum brake lining according to claim 5 or 7, wherein: the connecting body (14) is provided with a clamping conical surface (16).

9. A stroke break wear warning probe for a drum brake lining according to claim 1, wherein: the sliding body (3) comprises a thimble (25); the thimble (25) is arranged at the lower end of the sliding body (3); the connector (2) comprises two groups of lap joint elastic sheets (5); two groups of lap joint elastic sheets (5) are arranged at the upper end of the connector (2); the ends of the two groups of lap joint elastic sheets (5) are in lap joint connection with each other; the thimble (25) is connected with one group of lap joint spring sheets (5) in an abutting mode.