Automobile brake monitoring alarm system

Abstract

The utility model relates to a commercial vehicle, in particular to an automobile brake monitoring alarm system of a semitrailer brake system, which comprises a wear sensor with double grooves, a shoe temperature sensor, an elastic retainer ring, a fixing clamp, a shaft beam, a brake shoe and a friction plate. According to the utility model, the wear sensor with the groove, the metal retainer ring and the horseshoe temperature sensor with the groove are combined together, so that when the friction plate is seriously worn, only the wear sensor needs to be replaced, and the horseshoe sensor does not need to be replaced, namely, the horseshoe sensor can be recycled. Meanwhile, in order to better transmit alarm signals and prevent adverse factors such as signal shielding and the like, the signal transmitter is fixed on the shaft beam.

Description

Technical Field

[0001] The utility model relates to a commercial vehicle, in particular to an automobile brake monitoring and alarm system of a semi-trailer brake system. Background Art

[0002] Brake shoes are the friction components of drum brakes. Braking is achieved through friction between the friction linings on the brake shoes and the brake drum. During vehicle use, friction lining wear often occurs, and drivers often neglect to maintain and replace the linings promptly, leading to abnormal wear between the lining rivets and the brake drum. Furthermore, prolonged downhill driving on certain roads often generates excessive heat, and drivers often fail to provide prior warning. This can cause the brake shoes and drum to continuously heat up, potentially burning the tires. This is demonstrated in CN107989937 A. As is well known, drum brake shoes on semitrailers are consumable parts and require multiple replacements throughout the lifecycle of the axle. Existing wear sensors operate by irreversibly wearing along with the shoes. When the wear sensor reaches a certain level of wear, a circuit breaker alarm is triggered, signaling that the shoes need to be replaced. This also requires replacing the unusable wear sensor and any connected components. Utility Model Content

[0003] This utility model aims to provide a fixed structure for an automobile brake monitoring alarm system, which allows for the reusability of horseshoe sensors and the convenient replacement of wear sensors. This fixed structure can reduce the cost and time of subsequent maintenance for users. At the same time, it can also ensure better transmission of alarm signals and prevent adverse factors such as signal shielding.

[0004] In order to solve the above technical problems, the utility model provides a vehicle brake monitoring and alarm system, comprising a brake shoe 2 mounted on an axle beam 1, a friction plate 3 fixed to the outer wall of the brake shoe 2, the brake shoe 2 is provided with a mounting through-hole, a strip groove 31 opposite to and communicating with the mounting through-hole is provided on the friction plate 3, a shoe temperature sensor 4 is fixed in the mounting through-hole of the brake shoe 2, and a wear sensor 5 capable of extending into the strip groove 31 is connected to the shoe temperature sensor 4, which is characterized in that a plurality of circumferentially arranged plug-in sheets 41 forming a plug-in ring are provided at the top end of the shoe temperature sensor 4, a central slot is formed in the middle of all the plug-in sheets 41, and a circumferential plug-in groove 42 communicating with the central slot is formed between adjacent plug-in sheets 41, and a circumferential plug-in groove 42 communicating with the central slot is formed between the adjacent plug-in sheets 41. The outer wall of the wear sensor 5 is provided with a number of raised plug-in blocks 51 that can be inserted into a number of circumferential plug-in grooves 42. Arc-shaped card grooves 40 that can be connected to form an annular card groove are provided on the plug-in piece 41 and the raised plug-in block 51. An elastic retaining ring 6 that can clamp the wear sensor 5 and the horseshoe temperature sensor 4 and fix them together is clamped in the annular card groove; an annular clamping platform 43 that can be clamped to the top edge of the mounting through hole of the brake shoe 2 is provided on the outer wall of the upper end of the horseshoe temperature sensor 4, and an annular groove 44 is provided on the outer wall of the lower end of the horseshoe temperature sensor 4. An elastic fixing clip 7 that can be clamped to the bottom end of the brake shoe 2 is inserted in the annular groove 44. A signal transmitter 8 is installed on the axle beam 1, and the horseshoe temperature sensor 4 and the wear sensor 5 are electrically connected to the signal transmitter 8.

[0005] Furthermore, the preferred technical approach adopted by the present invention is: a power socket is provided at the bottom of the central slot of the horseshoe temperature sensor 4; and a plug 52 that can be inserted into the power socket of the horseshoe temperature sensor 4 is provided at the bottom end of the wear sensor 5.

[0006] Furthermore, the preferred technical approach adopted by the present invention is: the horseshoe temperature sensor 4 and the wear sensor 5 are both cylindrical, the plug-in piece 41 is an arc-shaped piece, the raised plug-in block 51 is a straight plug-in block, and the circumferential plug-in groove 42 is a straight slot.

[0007] Furthermore, the preferred technical approach adopted by the present invention is that after the protruding insert block 51 is inserted into the circumferential insert groove 42 to the bottom, the top of the protruding insert block 51 is flush with the top of the inserting piece 41 .

[0008] Furthermore, the preferred technical approach adopted by the present invention is: a fixing hole 81 is provided on the signal transmitter 8 , and a metal tie 9 for fixing the signal transmitter on the axle beam 1 is passed through the fixing hole 81 .

[0009] Furthermore, the preferred technical approach adopted by the present invention is: a fender 10 is fixed on the axle beam 1 , and the fender 10 is annular and is arranged next to the brake shoe 2 .

[0010] Furthermore, the preferred technical approach adopted by the present invention is: there are four connecting pieces 41 and four protruding blocks 51. After the horseshoe temperature sensor 4 and the wear sensor 5 are connected, the four connecting pieces 41 and the four protruding blocks 51 form a complete annular wall.

[0011] Furthermore, the preferred technical approach adopted by the present invention is: the horseshoe temperature sensor 4 is connected to the signal transmitter 8 through a wire harness, and a wire groove for the wire harness 11 to pass through is provided on the fender 10.

[0012] Furthermore, the preferred technical method adopted by the present invention is: the elastic fixing clip 7 includes a fixing clip body 71, and two clips 72 that can be inserted into the annular groove 44 of the shoe temperature sensor 4 are provided at one end of the fixing clip body 71. An elastic support piece 73 is connected to the fixing clip body 71, and the elastic support piece 73 can be clamped to the bottom end of the brake shoe 2 after the two clips 72 are inserted into the annular groove 44.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The wear sensor and horseshoe temperature sensor are plugged in to form a sensor assembly. The wiring harness is connected to the signal transmitter after passing through the fender hole. The metal cable tie is passed through the fixing hole of the signal transmitter to fix the signal transmitter on the axle beam, thereby allowing the alarm signal of the vehicle brake monitoring alarm system to be better transmitted and preventing adverse factors such as signal shielding.

[0015] The arc-shaped grooves on the connector of the horseshoe temperature sensor and the raised plug-in block of the wear sensor are at the same height to form an annular groove, and then the elastic retaining ring is inserted into the annular groove from one side, and the wear sensor and the horseshoe temperature sensor are clamped and fixed together. This not only facilitates the installation and disassembly of the connector of the horseshoe temperature sensor and the wear sensor, but also when the friction plate is worn to a certain depth, even if the wear sensor is worn away, the horseshoe temperature sensor will not be damaged, so that the horseshoe temperature sensor can be recycled, and it is also convenient to quickly install a new wear sensor on the top of the horseshoe temperature sensor, so that the wear sensor can be easily replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the brake monitoring alarm system assembly structure (part 1);

[0017] Figure 2 yes Figure 1 A local enlarged view of point A;

[0018] Figure 3 Brake monitoring alarm system assembly structure diagram (part 2);

[0019] Figure 4 yes Figure 3 A partial enlarged view of point B;

[0020] Figure 5 This is the third schematic diagram of the assembly structure of the brake monitoring alarm system;

[0021] Figure 6 This is one of the structural diagrams of the wear sensor and the shoe temperature sensor;

[0022] Figure 7 This is the second structural diagram of the wear sensor and horseshoe temperature sensor;

[0023] Figure 8 This is a schematic diagram of the connection between the wear sensor and the signal transmitter;

[0024] Figure 9 This is the fourth schematic diagram of the assembly structure of the brake monitoring alarm system;

[0025] Figure 10 Structural diagram of the signal transmitter.

[0026] Axle beam 1, brake shoe 2, friction plate 3, shoe temperature sensor 4, wear sensor 5, elastic retaining ring 6, elastic fixing clip 7, signal transmitter 8, metal cable tie 9, fender 10, wire harness 11. DETAILED DESCRIPTION

[0027] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0028] The terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances to describe the embodiments of the present disclosure herein. In addition, the terms "including" and "having" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0029] and any variations thereof, are intended to cover non-exclusive inclusions. In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific orientation, or to being constructed and operated in a specific orientation. Moreover, in addition to being used to indicate orientations or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure may be understood based on the specific circumstances.

[0030] See attached Figure 1-10 The utility model provides an automobile brake monitoring and alarm system, the main components of which include an axle beam 1, a brake shoe 2, a friction plate 3, a shoe temperature sensor 4, a wear sensor 5, an elastic retaining ring 6, an elastic fixing clip 7, and a signal transmitter 8, realizing a structure of an automobile brake monitoring and alarm system in which the shoe temperature sensor can be recycled and the wear sensor can be easily replaced.

[0031] The key structure that allows for the reusable horseshoe temperature sensor and the easily replaceable wear sensor is that the protrusion of wear sensor 5 fits into the slot of horseshoe temperature sensor 4, and a retaining ring 6 clamps the wear sensor 5 and the retaining ring groove of horseshoe temperature sensor 4, firmly connecting the three. Horseshoe temperature sensor 4 detects the temperature of brake shoe 2, while wear sensor 5 detects the degree of friction of friction plate 3.

[0032] In order to describe the structure of the utility model in more detail, the specific implementation scheme is as follows:

[0033] A brake shoe 2 and a signal transmitter 8 are installed on the axle beam 1, and a friction plate 3 is fixed on the outer wall of the brake shoe 2. The brake shoe 2 is provided with a mounting through hole, and a strip groove 31 opposite to and communicating with the mounting through hole is provided on the friction plate 3. A shoe temperature sensor 4 is fixed in the mounting through hole of the brake shoe 2, and a wear sensor 5 that can extend into the strip groove 31 is connected to the shoe temperature sensor 4. The shoe temperature sensor 4 and the wear sensor 5 are both electrically connected to the signal transmitter 8.

[0034] In order to quickly fix the wear sensor 5 and the horseshoe temperature sensor 4 into one body to form a sensor assembly, the utility model adopts a quick plug-in structure. A plurality of plug-in sheets 41 arranged circumferentially to form a plug-in ring are provided on the top of the horseshoe temperature sensor 4. A central slot is formed in the middle of all the plug-in sheets 41, and a circumferential plug-in groove 42 communicating with the central slot is formed between adjacent plug-in sheets 41. A plurality of raised plug-in blocks 51 that can be correspondingly inserted into the plurality of circumferential plug-in grooves 42 are provided on the outer wall of the wear sensor 5. An arc-shaped card groove 40 that can be connected to form an annular card groove is provided on the plug-in sheet 41 and the raised plug-in block 51. There is a card slot 40 in the annular card slot. An elastic retaining ring 6 can clamp the wear sensor 5 and the horseshoe temperature sensor 4 and fix them together; when the wear sensor 5 and the horseshoe temperature sensor 4 need to be fixed together, the lower end of the wear sensor 5 is aligned with the top of the horseshoe temperature sensor 4, so that the multiple raised plug-in blocks 51 on the outer wall of the wear sensor 5 are correspondingly inserted into the circumferential plug-in groove 42 at the top of the horseshoe temperature sensor 4, so that the arc-shaped groove 40 on the plug-in piece 41 and the raised plug-in block 51 are at the same height to form an annular groove, and then the elastic retaining ring 6 is clamped into the annular groove from one side to clamp the wear sensor 5 and the horseshoe temperature sensor 4 and fix them together.

[0035] In order to quickly fix the horseshoe temperature sensor 4 on the brake shoe 2, the utility model provides an annular clamping platform 43 on the outer wall of the upper end of the horseshoe temperature sensor 4, which can be clamped to the top edge of the mounting through hole of the brake shoe 2, and an annular groove 44 is provided on the outer wall of the lower end of the horseshoe temperature sensor 4. An elastic fixing clip 7 that can be clamped to the bottom end of the brake shoe 2 is inserted into the annular groove 43. In this way, the horseshoe temperature sensor 4 can be quickly and firmly fixed to the brake shoe 2 through the clamping of the upper and lower ends of the annular clamping platform 43 and the elastic fixing clip 7.

[0036] Furthermore, the preferred technical approach adopted by the present invention is that: a power socket is provided at the bottom of the center slot of the horseshoe temperature sensor 4; and a plug 52 is provided at the bottom end of the wear sensor 5, which can be inserted into the power socket of the horseshoe temperature sensor 4. By plugging the plug 52 into the power socket, the horseshoe temperature sensor 4 and the wear sensor 5 are electrically connected, realizing power supply and signal transmission.

[0037] Furthermore, the preferred technical approach adopted by the present invention is that the horseshoe temperature sensor 4 and the wear sensor 5 are both cylindrical, the plug-in piece 41 is an arc-shaped piece, the raised insert 51 is a linear insert, and the circumferential insert groove 42 is a linear slot. After the raised insert 51 is fully inserted into the circumferential insert groove 42, the top of the raised insert 51 is flush with the top of the plug-in piece 41.

[0038] Furthermore, the preferred technical method adopted by the present invention is: a fixing hole 81 is provided on the signal transmitter 8, and a metal tie 9 for fixing the signal transmitter on the axle beam 1 is passed through the fixing hole 81, so that the signal transmitter 8 is firmly fixed on the axle beam 1 through the metal tie 9.

[0039] Furthermore, the preferred technical approach adopted by the present invention is: a fender 10 is fixed on the axle beam 1, the fender 10 is annular, and is arranged next to the brake shoe 2. Through the arrangement of the fender 10, the vehicle is prevented from driving, and external debris, such as mud, sand, etc., are prevented from entering the shoe temperature sensor 4 and the wear sensor 5, so as to prevent damage to the two sensors or interference with the operation of the two sensors.

[0040] Furthermore, the preferred technical approach adopted by the present invention is: there are four connecting pieces 41 and four protruding blocks 51. After the horseshoe temperature sensor 4 and the wear sensor 5 are connected, the four connecting pieces 41 and the four protruding blocks 51 form a complete annular wall.

[0041] Furthermore, the preferred technical approach adopted by the present invention is: the horseshoe temperature sensor 4 is connected to the signal transmitter 8 through a wire harness, and a wire groove for the wire harness 11 to pass through is provided on the fender 10.

[0042] Furthermore, the preferred technical method adopted by the present invention is: the elastic fixing clip 7 includes a fixing clip body 71, and two clips 72 that can be inserted into the annular groove 43 of the shoe temperature sensor 4 are provided at one end of the fixing clip body 71, and an elastic support piece 73 is connected to the fixing clip body 71. The elastic support piece 73 can be clamped to the bottom end of the brake shoe 2 after the two clips 72 are inserted into the annular groove 43.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A vehicle brake monitoring and alarm system, comprising a brake shoe (2) mounted on an axle beam (1), a friction plate (3) fixed to the outer wall of the brake shoe (2), the brake shoe (2) being provided with a mounting through hole, the friction plate (3) being provided with a strip groove (31) opposite to and communicating with the mounting through hole, a shoe temperature sensor (4) being fixed in the mounting through hole of the brake shoe (2), and a wear sensor (5) being connected to the shoe temperature sensor (4) and capable of extending into the strip groove (31), characterized in that A plurality of plug-in plates (41) arranged circumferentially to form a plug-in ring are provided at the top of the horseshoe temperature sensor (4), a central slot is formed in the middle of all the plug-in plates (41), and a circumferential plug-in groove (42) communicating with the central slot is formed between adjacent plug-in plates (41). A plurality of protruding plug-in blocks (51) capable of correspondingly inserting into the plurality of circumferential plug-in grooves (42) are provided on the outer wall of the wear sensor (5), and an arc-shaped card groove (40) capable of connecting to form an annular card groove is provided on the plug-in plates (41) and the protruding plug-in blocks (51), and a card groove (40) capable of connecting to form an annular card groove is provided in the annular card groove. An elastic retaining ring (6) is clamped and fixed integrally with the horseshoe temperature sensor (4); an annular clamping platform (43) is provided on the outer wall of the upper end of the horseshoe temperature sensor (4) and can be clamped to the top edge of the mounting through hole of the brake shoe (2); an annular groove (44) is provided on the outer wall of the lower end of the horseshoe temperature sensor (4); an elastic fixing clip (7) is inserted into the annular groove (44) and can be clamped to the bottom end of the brake shoe (2); a signal transmitter (8) is installed on the axle beam (1), and the horseshoe temperature sensor (4) and the wear sensor (5) are both electrically connected to the signal transmitter (8).

2. The automobile brake monitoring and alarm system according to claim 1 is characterized in that A power socket is provided at the bottom of the center slot of the horseshoe temperature sensor (4); and a plug (52) capable of being inserted into the power socket of the horseshoe temperature sensor (4) is provided at the bottom end of the wear sensor (5).

3. The automobile brake monitoring and alarm system according to claim 1 is characterized in that The horseshoe temperature sensor (4) and the wear sensor (5) are both cylindrical, the plug-in piece (41) is an arc-shaped piece, the raised plug-in block (51) is a straight plug-in block, and the circumferential plug-in groove (42) is a straight slot.

4. The automobile brake monitoring and alarm system according to claim 3 is characterized in that After the raised insert block (51) is inserted into the circumferential insert groove (42) to the bottom, the top of the raised insert block (51) is flush with the top of the insert plate (41).

5. The automobile brake monitoring and alarm system according to claim 1 is characterized in that A fixing hole (81) is provided on the signal transmitter (8), and a metal tie (9) for fixing the signal transmitter to the axle beam (1) is passed through the fixing hole (81).

6. The automobile brake monitoring and alarm system according to any one of claims 1 to 5, characterized in that A fender (10) is fixed on the axle beam (1), and the fender (10) is annular and is arranged next to the brake shoe (2).

7. The automobile brake monitoring and alarm system according to claim 1 or 3, characterized in that There are four plug-in pieces (41) and four protruding plug-in blocks (51). After the horseshoe temperature sensor (4) and the wear sensor (5) are plugged in, the four plug-in pieces (41) and the four protruding plug-in blocks (51) form a complete annular wall.

8. The automobile brake monitoring and alarm system according to claim 6 is characterized in that The horseshoe temperature sensor (4) is connected to the signal transmitter (8) via a wire harness (11), and a wire groove for the wire harness to pass through is provided on the fender (10).

9. The automobile brake monitoring and alarm system according to claim 1, characterized in that The elastic fixing clamp (7) comprises a fixing clamp body (71), and two clips (72) are provided at one end of the fixing clamp body (71) and can be inserted into the annular groove (44) on both sides of the shoe temperature sensor (4). An elastic supporting piece (73) is connected to the fixing clamp body (71), and the elastic supporting piece (73) can be clamped to the bottom end of the brake shoe (2) after the two clips (72) are inserted into the annular groove (44).

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