CN211202698U

CN211202698U - Clamping structure for brake pad wear alarm sensor and sensor thereof

Info

Publication number: CN211202698U
Application number: CN201922253693.6U
Authority: CN
Inventors: 许振飞; 许齐放
Original assignee: Linyi Hongtu Electron Co ltd
Current assignee: Linyi Hongtu Electron Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-08-07
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses a joint structure and sensor for brake block wearing and tearing alarm sensor belongs to automobile brake block accessory field for automobile brake block monitoring, it includes the joint structure, and joint structure snap ring is provided with the last jack catch that upwards buckles and constitute, the lower jack catch that buckles downwards and constitute in the border position department of snap ring, the jack catch is buckled to snap ring the central axis place direction down, and leaves the interval between the free end of the lower jack catch that sets up relatively. In view of above-mentioned technical scheme, the utility model discloses can realize the improvement of brake wear alarm sensor and the stability of being connected between the brake shoe, overcome the not hard up problem of sensor that the brake shoe casting error arouses.

Description

Clamping structure for brake pad wear alarm sensor and sensor thereof

Technical Field

The utility model belongs to the automobile brake piece accessory field, specifically speaking especially relates to a joint structure and sensor for brake block wearing and tearing alarm sensor.

Background

According to the requirements of item 7.9.5 in technical conditions for safety of operation of motor vehicles (GB 7258-2017): when the lining of the service brake needs to be replaced, an optical or acoustic alarm device is adopted to give an alarm to a driver on a cab seat. The degree of wear of the thickness of the brake lining (brake pad or friction plate) of the vehicle determines whether the brake pad needs to be replaced. Because the brake lining is often installed in the brake assembly, the abrasion degree of the brake lining can not be visually observed from the outside, and after the abrasion of the brake lining reaches a certain degree, a series of braking problems can be brought, such as reduction of braking torque, imbalance of left and right braking torque and the like, and in the braking process, the increase of braking distance, vehicle deviation during braking, scratch of a brake disc (brake drum), braking failure and the like easily occur, so that serious hidden dangers are brought to safe driving of a vehicle.

According to the current standard of technical conditions for safety of motor vehicle operation (GB 7258-2017), a friction alarm sensor is required to be disposed on a friction pad, the friction alarm sensor can mount an inductive head with a built-in conductive wire on a back plate or a brake shoe of the brake pad, and can continuously rub against a brake disc or a brake drum during braking, when the friction pad is worn to an extreme position, the conductive wire inside the inductive head is worn off, and an alarm signal is optically displayed on an instrument panel of a cab to remind a driver on a driver seat to replace the brake pad as soon as possible.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a joint structure and sensor for brake block wearing and tearing alarm sensor, its improvement that can realize the brake wearing and tearing alarm sensor and the stability of being connected between the brake shoe, the sensor that overcomes the brake shoe casting error and arouse is not hard up the problem.

In order to achieve the purpose, the utility model is realized by the following technical proposal:

the utility model discloses in a joint structure for brake block wearing and tearing alarm sensor, including the snap ring, be provided with the last jack catch that upwards buckles and constitute, the lower jack catch that buckles downwards and constitute in the border position department of snap ring, the jack catch is buckled to snap ring the central axis place direction down, and leaves the interval between the free end of the lower jack catch that sets up relatively.

Furthermore, the snap ring of the utility model is provided with a joint port at one side.

Further, the utility model discloses in the snap ring be provided with the jack catch in pairs in the both sides that lie in the joint mouth, lie in the joint mouth and be provided with down the jack catch with between the last jack catch of one side.

Further, in the present invention, the free end of the upper jaw is shifted toward the direction of the central axis away from the snap ring.

Further, say, the utility model discloses in last jack catch include once kink A, secondary kink A, once kink A and secondary kink A's the opposite direction of buckling, once kink A buckles to the central axis place direction of snap ring.

Further, the utility model discloses in lower jack catch include the primary bending part B of buckling to snap ring the central axis direction, be provided with rather than the secondary bending part B of buckling opposite direction at primary bending part B's end.

The brake pad abrasion alarm sensor provided with the clamping structure comprises a friction part, a wire part and an insertion part, wherein two ends of the wire part are positioned in the insertion part, a bending part of the wire part is positioned in the friction part and is spaced from the end surface of the friction part, clamping grooves are processed on two sides of the friction part, a clamping ring is sleeved on the friction part, and the clamping ring is positioned below a brake shoe; the clamping groove is clamped with the free end of the lower clamping jaw in the clamping structure, and the upper clamping jaw in the clamping structure is contacted with the lower surface of the brake shoe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the joint structure of jack catch and lower jack catch, can effectively overcome between friction portion and the brake shoe because the not hard up problem of friction portion that the brake shoe casting error arouses, improve automobile brake block wearing and tearing alarm sensor's job stabilization nature with brake shoe, friction portion contact respectively.

2. The utility model discloses a set up the improvement that the joint mouth realized the installation convenience between joint structure and the friction portion on the snap ring, then improve the packaging efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the middle clamping structure of the present invention.

Fig. 2 is a schematic structural diagram of the middle clamping structure of the present invention.

Fig. 3 is a schematic structural view of the brake pad wear alarm sensor of the present invention.

Fig. 4 is a schematic view of the connection between the brake shoe and the brake pad wear alarm sensor of the present invention.

In the figure: 1. a friction plate; 2. riveting; 3. braking a horseshoe; 4. a friction portion; 5. a clamping part; 6. a wire portion; 7. a plug-in part; 8. a clamping groove; 9. an upper jaw; 10. a snap ring; 11. a lower jaw; 12. a card interface; 91. a primary bending part A; 92. a secondary bending part A; 111. a primary bending part B; 112. and D, secondary bending part B.

Detailed Description

The technical solution of the present invention will be further described and illustrated with reference to the following examples. It should be noted that, in the following paragraphs, possible directional terms including, but not limited to, "upper, lower, left, right, front, rear" and the like are used, and all directions are meant to correspond to the visual directions shown in the drawings of the specification, which should not be construed as limiting the scope or technical solutions of the present invention, and are only for facilitating the better understanding of the technical solutions of the present invention by those skilled in the art.

In the description of the present specification, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1

A clamping structure for a brake pad abrasion alarm sensor comprises a clamping ring 10, wherein an upper clamping jaw 9 formed by upward bending and a lower clamping jaw 11 formed by downward bending are arranged at the edge position of the clamping ring 10, the lower clamping jaw 11 is bent towards the direction of the central axis of the clamping ring 10, and a space is reserved between the free ends of the lower clamping jaws 11 which are oppositely arranged; a clamping interface 12 is formed on one side of the clamping ring 10; the clamping ring 10 is provided with upper clamping jaws 9 in pairs at two sides of the clamping interface 12, and a lower clamping jaw 11 is arranged between the upper clamping jaws 9 at the same side of the clamping interface 12; the free end of the upper jaw 9 is offset away from the centre axis of the snap ring 10.

Example 2

A clamping structure for a brake pad wear alarm sensor is disclosed, wherein the upper jaw 9 comprises a primary bending part A91 and a secondary bending part A92, the bending direction of the primary bending part A91 is opposite to that of the secondary bending part A92, and the primary bending part A91 is bent towards the direction of the central axis of a clamping ring 10; the lower jaw 11 includes a first bent portion B111 bent toward the central axis of the snap ring 10, and a second bent portion B112 having a direction opposite to the bending direction of the first bent portion B111 is provided at the end of the first bent portion B111. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.

Example 3

A brake pad abrasion alarm sensor provided with the clamping structure in the embodiment comprises a friction part 4, a wire part 6 and an insertion part 7, wherein two ends of the wire part 6 are positioned in the insertion part 7, the bent part of the wire part 6 is positioned in the friction part 4 and is spaced from the end surface of the friction part 4, clamping grooves 8 are processed on two sides of the friction part 4, a clamping ring 10 is sleeved on the friction part 4, and the clamping ring 10 is positioned below a brake shoe 3; the clamping groove 8 is clamped with the free end of a lower clamping jaw 11 in the clamping structure, and an upper clamping jaw 9 in the clamping structure is contacted with the lower surface of the brake shoe 3. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.

On the basis of the above embodiments, the present invention proceeds with detailed descriptions of technical features and functions thereof, so as to help those skilled in the art fully understand the technical solution of the present invention and reproduce it.

The utility model discloses in, the joint structure include snap ring 10 that the annular plate body constitutes, for the convenience of being connected between snap ring 10 and the friction portion 4, it has joint mouth 12 to open in one side of snap ring 10, joint mouth 12 can supply wire portion 6 to pass. The clamping rings 10 on two sides of the clamping interface 12 are symmetrically provided with upper clamping jaws 9 in pairs, and the clamping ring 10 between the upper clamping jaws 9 is provided with lower clamping jaws 11. As shown in fig. 1 to 2, the free end of the upper jaw 9 extends in the direction of the upper outer side of the snap ring 10, and there are a plurality of circular arc-shaped bends during the extension process. The lower claw 11 extends from the edge of the snap ring 10 to the position of the central axis of the snap ring 10, and a plurality of circular arc bends exist in the extending process.

When the brake shoe is used, the insertion part 7 is inserted from the riveting hole at the top of the brake shoe 3 until the step structure A on the friction part 4 is lapped with the upper surface of the brake shoe 3 and then stops. The state is shown in fig. 3. The symmetrical processing in both sides position department of friction portion 4 below has joint groove 8, and joint groove 8 is from the friction portion 4 surface to the recess that has the inclined plane of inside processing, and it can cooperate with the free end of lower jack catch 11 in order to accomplish the block of jack catch 11 free end down.

The utility model discloses in, friction portion 4, wire portion 6, grafting portion 7 constitute brake block wearing and tearing alarm sensor's primary structure, wherein wire portion 6 is single wire, it buckles in friction portion 4, the both ends of guide portion 6 and the contact pin fixed connection in grafting portion 7. Thus, the wire part 6 forms a loop in the friction part 4, and when the bent part in the friction part 4 is broken, the loop formed by the wire part 6 is broken, and then a signal for the judgment of the automobile control system is formed.

In the present invention, the snap ring 10 passes through the wire portion 6 through the snap interface 12, and the wire portion 6 is located in the inner hole of the snap ring 10. The snap ring 10 moves up along the wire part 6 to the position of the friction part 4, and the lower jaw 11 comes into contact with the friction part 4 gradually. When the lower claw 11 contacts and is clamped with the clamping grooves 8 on two sides of the friction part 4, and the upper claw 9 contacts with the bottom of the brake shoe 3 or is elastically deformed, the friction part 4 can be stably connected with the brake shoe 3 under the fixation of the clamping structure. Namely the utility model discloses utilize last jack catch 9, lower jack catch 11 to realize the elimination to 3 thickness direction casting errors of brake shoe, guarantee the stability of being connected after friction portion 4 and the installation of brake shoe 3 then.

The utility model provides a preferred elastic metal piece of joint structure is made, and it is through being provided with convex bending of two places and opposite direction's a kink A91, secondary kink A92 on last jack catch 9, and above-mentioned two kinks can make full use of elastic metal piece's self performance, produce the effort of the original form of recovery after taking place deformation, then can cooperate complete offsetting to brake shoe 3 casting error with lower jack catch 11. Based on the same principle, the lower jaw 11 is also provided with a primary bent portion B111 and a secondary bent portion B112.

Finally, although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description of the present description is for clarity reasons only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The utility model provides a joint structure for brake block wearing and tearing alarm sensor which characterized in that: including snap ring (10), be provided with the last jack catch (9) that upwards buckle and constitute, lower jack catch (11) that downwards buckle and constitute in the border position department of snap ring (10), jack catch (11) are buckled to snap ring (10) the central axis place direction down, and leave the interval between the free end of the lower jack catch (11) that sets up relatively.

2. The clamping structure for the brake pad wear alarm sensor according to claim 1, wherein: the clamping ring (10) is provided with a clamping interface (12) at one side.

3. The clamping structure for the brake pad wear alarm sensor according to claim 1, wherein: the clamping ring (10) is provided with upper clamping jaws (9) in pairs on two sides of the clamping interface (12), and lower clamping jaws (11) are arranged between the upper clamping jaws (9) on the same side of the clamping interface (12).

4. The clamping structure for the brake pad wear alarm sensor according to claim 1, wherein: the free end of the upper clamping jaw (9) deviates towards the direction of the central axis far away from the clamping ring (10).

5. The clamping structure for the brake pad wear alarm sensor according to claim 1, wherein: the upper clamping jaw (9) comprises a primary bent part A (91) and a secondary bent part A (92), the bending directions of the primary bent part A (91) and the secondary bent part A (92) are opposite, and the primary bent part A (91) is bent towards the direction of the central axis of the clamping ring (10).

6. The clamping structure for the brake pad wear alarm sensor according to claim 1, wherein: the lower clamping jaw (11) comprises a primary bending part B (111) which is bent towards the central axis direction of the clamping ring (10), and a secondary bending part B (112) opposite to the bending direction of the primary bending part B (111) is arranged at the tail end of the primary bending part B (111).

7. The brake pad wear alarm sensor provided with the clamping structure for the brake pad wear alarm sensor as claimed in any one of claims 1 to 6, comprises a friction part (4), a wire part (6) and an insertion part (7), wherein two ends of the wire part (6) are located in the insertion part (7), a bent part of the wire part (6) is located in the friction part (4) and is spaced from the end surface of the friction part (4), and the brake pad wear alarm sensor is characterized in that: clamping grooves (8) are processed on two sides of the friction part (4), a clamping ring (10) is sleeved on the friction part (4), and the clamping ring (10) is located below the brake shoe (3); the clamping groove (8) is clamped with the free end of a lower clamping jaw (11) in the clamping structure, and an upper clamping jaw (9) in the clamping structure is in contact with the lower surface of the brake shoe (3).