CN217502392U - Automobile brake pad abrasion alarm device - Google Patents

Abstract

The utility model provides an automobile brake pad wear alarm device, which comprises a sleeve, wherein a pushing assembly is arranged in the sleeve, the pushing assembly comprises a contact body with one end inserted into the sleeve, one end of the contact body positioned outside the sleeve is provided with a groove, a rotatable ball body is arranged in the groove, and one surface of the ball body is positioned outside the groove; one end of the contact body, which is positioned in the sleeve, is fixedly connected with a fixed column and an insulating cross rod in sequence. The utility model discloses a warning and warning can carry out twice warning to the driver, realize the effect of accurate warning, remind the driver to change the brake block or overhaul and maintain it, avoid the driver to ignore alarm device's police dispatch newspaper; after the warning device gives an early warning, a driver can check the brake pad before long-distance driving so as to calculate whether the brake pad can be used to a destination, the condition that the brake pad is damaged in the long-distance driving process of a vehicle is prevented, and safety accidents are avoided.

Description

Automobile brake pad abrasion alarm device

Technical Field

The utility model relates to an alarm device technical field especially relates to an automobile brake block wearing and tearing alarm device.

Background

The automobile brake block is used as one of important parts of an automobile and plays an important role in braking, decelerating or stopping the automobile in the running process; when the automobile brake pad is worn to a certain degree and becomes thin after being used for a long time, the brake pad wear alarm device gives an alarm to remind a driver to replace the brake pad; however, the existing brake pad alarming device cannot perform the condition of early warning when the brake pad is worn to a certain degree, and performs the function of secondary alarming when the brake pad is worn to the degree that the brake pad needs to be replaced, and the brake pad alarming device can remind a driver of replacing the brake pad when the brake pad is worn to the degree that the brake pad needs to be replaced or scrapped, so that the alarm of the alarming device is easily ignored by the driver due to other conditions, and the brake pad cannot be replaced in time; meanwhile, the brake pad is easy to replace after a driver meets the alarm of the brake pad during long-distance running on the highway, and cannot be replaced in time, so that safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an automobile brake block wearing and tearing alarm device has solved brake block alarm device and can not play and carry out earlier early warning after the brake block wearing and tearing to the certain degree, carries out the effect that the secondary was reported to the police again when the degree that the brake block wearing and tearing must be changed, leads to the driver to meet the brake block and report to the police in the long distance goes on highway and must change the back, can not in time change again, and causes the problem of incident.

In order to solve the technical problem, the utility model discloses specifically adopt following technical scheme:

a wear alarm device for an automobile brake pad comprises a sleeve, wherein a pushing assembly is arranged in the sleeve, the pushing assembly comprises a contact body, one end of the contact body is inserted into the sleeve, a groove is formed in one end, located outside the sleeve, of the contact body, a rotatable ball body is placed in the groove, and one surface of the ball body is located outside the groove; the contact comprises a sleeve and is characterized in that one end, located in the sleeve, of the contact body is fixedly connected with a fixed column and an insulating cross rod in sequence, at least two conducting rings are sleeved on the cross rod, an interval is formed between the two conducting rings, two elastic pieces are further arranged at the end portion, located in the sleeve, of the cross rod, the elastic pieces are connected to the conducting rings close to the end portion of the cross rod in a sliding mode, at least two electric connection assemblies are arranged at one end, far away from the contact body, of the sleeve, and the two electric connection assemblies are connected with the elastic pieces and form a conducting loop through the conducting rings.

Compared with the prior art, the utility model discloses following beneficial effect has:

the sleeve is arranged on the horseshoe, when the brake pad is worn and thinned, the ball body can rotate along with the friction of the brake drum, meanwhile, the brake drum applies pressure to the ball body to push the ball body into the sleeve, so that the contact body continues to penetrate into the sleeve, and the fixed column drives the cross rod to move along with the movement; when the cross rod moves for multiple times to enable the end parts of the two elastic sheets to be respectively contacted with the part of the cross rod between the two conducting rings (the interval between the two conducting rings), the power-on assembly is powered off to enable the vehicle to send out early warning to remind a driver that the abrasion degree of the brake pad is high, so that the driver can check the brake pad before long-distance driving, and check whether the driver can insist on a destination; when the brake pad is not replaced and is continuously used, the contact body continuously extends into the sleeve along with the friction of the brake pad, so that the cross rod moves, and when the end parts of the two elastic sheets are contacted with the other conducting ring, the electric connection assembly is electrified; after the brake pad is used for a long time and becomes thinner, the cross rod moves along with the continuous movement of the contact body into the sleeve, and when the end parts of the two elastic sheets are separated from the other conducting ring, the vehicle gives an alarm to remind a driver that the brake pad needs to be replaced in a short time; the utility model discloses a warning and warning can carry out twice warning to the driver, realize the effect of accurate warning, remind the driver to change the brake block or overhaul and maintain it, avoid the driver to ignore alarm device's police dispatch newspaper; after the warning device carries out early warning, a driver can check the brake pad before long-distance driving so as to calculate whether the brake pad can be used to a destination, the condition that the brake pad is damaged in the long-distance driving process of a vehicle is prevented, and safety accidents are avoided.

Drawings

Fig. 1 is a front view schematically illustrating a first embodiment of the present invention;

FIG. 2 is a schematic sectional view of a first embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

fig. 4 is a schematic structural view of the first embodiment of the present invention assembled on a shoe;

FIG. 5 is a schematic sectional view of a second embodiment of the present invention;

fig. 6 is a schematic structural view of the card display of the present invention.

In the figure: 1. a sleeve; 2. a contact body; 21. a sphere; 22. concave holes; 23. a first step ring gear; 24. a slide hole; 3. fixing a column; 31. a cross bar; 32. an annular groove; 33. conducting rings; 34. a guide cone; 35. a seal ring; 4. a fixed block; 41. a spring plate; 5. a wire; 51. a sleeve; 6. a lead tail end fixing body; 61. a second step ring gear; 7. a T-shaped cylinder; 71. a ball; 72. step ring gear No. three; 73. a housing; 74. a sealing head; 8. a pin; 9. a shoe; 10. a brake pad; 11. a card.

Detailed Description

The following detailed description of the present invention will be made with reference to the accompanying drawings and examples.

As shown in fig. 1, 2, 4 and 5, the utility model provides an automobile brake pad wear alarm device, which comprises a sleeve 1, a pushing assembly is arranged in the sleeve 1, the pushing assembly comprises a contact body 2 with one end inserted into the sleeve 1, a groove is arranged at one end of the contact body 2 positioned outside the sleeve 1, a rotatable ball 21 is placed in the groove, and one surface of the ball 21 is positioned outside the groove; the one end that the contact body 2 is located sleeve 1 is fixedly connected with fixed column 3 and insulating horizontal pole 31 in proper order, the cover is equipped with two at least conducting rings 33 on the horizontal pole 31, has the interval between two conducting rings 33, the tip that is located horizontal pole 31 in the sleeve 1 still is provided with two shell fragments 41, shell fragment 41 sliding connection is on the conducting ring 33 that is close to horizontal pole 31 tip, the one end that the contact body 2 was kept away from to sleeve 1 sets up two at least and connects the electric subassembly, two connect the electric subassembly with shell fragment 41 is connected and is formed conductive loop through the conducting ring. The part of the ball 21 in the groove of the contact body 2 is attached to the inner wall of the groove, so that part of the ball 21 is always positioned outside the groove, the ball 21 rolls after being rubbed, and meanwhile, the diameter of the groove opening of the groove of the contact body 2 is smaller than that of the ball 21, and the ball 21 can be prevented from falling out of the groove.

As shown in fig. 1 and fig. 2, the electrical connection assembly includes a wire 5 inserted into one end of the sleeve 1 far from the contact body 2, and one end of the wire 5 located in the sleeve 1 is fixed to one end of the elastic piece 41 far from the cross bar 31; a fixed block 4 penetrated by a lead 5 is further fixed in one end of the sleeve 1 far away from the contact body 2, and one end of the elastic sheet 41 far away from the cross bar 31 is fixed with one surface of the fixed block 4 close to the cross bar 31; a lead tail end fixing body 6 which is contacted with the fixing block 4 is inserted into one end of the sleeve 1 far away from the contact body 2, and a through hole for the lead 5 to pass through is formed in the lead tail end fixing body 6. Two wires 5 are arranged, and one ends of the two wires 5 positioned in the sleeve 1 are respectively fixed with the two elastic sheets 41; one side of the fixed block 4 close to the cross rod 31 is provided with two concave grooves, one ends of the two elastic sheets 41 far away from the cross rod 31 are respectively positioned in the two concave grooves, the elastic sheets 41 are provided with through holes for one ends of the wires 5 positioned in the sleeve 1 to pass through, after one ends of the wires 5 pass through the through holes on the elastic sheets 41, the elastic sheets 41 and the wires 5 are fixed together through rivets, one side of the fixed block 4 provided with the concave grooves is blocked by a convex part in the sleeve 1, and the fixed block 4 is provided with concave parts matched with the convex parts (as shown in fig. 2); then the lead tail end fixing body 6 is inserted into the sleeve 1 to be contacted with the fixing block 4, so that the two leads 5 respectively penetrate through the two through holes on the lead tail end fixing body 6 and then extend out of the sleeve 1, and the lead tail end fixing body 6 can increase the stability of the fixing block 4 and simultaneously seal the sleeve 1; the two wires 5 are connected to the control system in the vehicle.

As shown in fig. 1, 2 and 4, a concave hole 22 for storing lubricating oil is formed in the groove on the contact body 2, a first clamping groove is formed on the inner wall of the sleeve 1, which is in contact with the contact body 2, and a first stepping ring tooth 23 which is matched with the first clamping groove and prevents the contact body 2 from withdrawing from the sleeve 1 is arranged on the outer wall of the contact body 2; half of the contact body 2 is provided with a sliding hole 24 which is positioned outside the sleeve 1 and is transversely arranged, and the sleeve 1 is in threaded connection with a pin 8 inserted into the sliding hole 24. When the ball 21 is placed in the groove of the contact body 2, lubricating oil can be injected into the concave hole 22, so that the ball 21 can rotate conveniently, after the contact body 2 is inserted into the sleeve 1, a group of first stepping ring teeth 23 on the contact body 2 are clamped with a group of first clamping grooves on the inner wall of the sleeve 1, and the first clamping grooves and the first stepping ring teeth 23 are both conical, so that the contact body 2 can be effectively prevented from being withdrawn from the sleeve 1; after the contact body 2 is installed, the pin 8 penetrates through the sliding hole 24 and then is in threaded connection with the sleeve 1 (the sliding hole 24 is in a transverse strip shape), so that the contact body 2 can be further fixed, the contact body 2 only can move towards the sleeve 1, and the contact body 2 is prevented from falling off from the sleeve 1; meanwhile, after the positioning hole is formed in the lead tail end fixing body 6, the sleeve 1 is in threaded connection with a positioning rod penetrating through the positioning hole in the lead tail end fixing body 6, so that the lead tail end fixing body 6 is prevented from being separated from the sleeve 1 (the positioning hole and the positioning rod are not shown in the figure).

As shown in fig. 2 and fig. 3, a sleeve 51 for sleeving the lead 5 is fixed at one end of the lead tail end fixing body 6 located outside the sleeve 1, a second clamping groove is further formed in the inner wall of the sleeve 1 contacting the lead tail end fixing body 6, and a second stepping ring tooth 61 adapted to the second clamping groove and used for preventing the lead tail end fixing body 6 from exiting from the sleeve 1 is arranged at the portion of the lead tail end fixing body 6 located inside the sleeve 1. The second clamping groove is matched with the second stepping ring tooth 61 to prevent the lead tail end fixing body 6 from withdrawing from the sleeve 1, and the sleeve 51 can sleeve two leads 5 to protect the leads 5.

As shown in fig. 2, a protruding portion contacting with the outer wall of the fixed column 3 close to the cross bar 31 is arranged in the sleeve 1, and a group of sealing rings 35 located between the contact body 2 and the protruding portion in the sleeve 1 is sleeved on the fixed column 3. After the convex part in the sleeve 1 contacts the fixed column 3 (the convex part in the sleeve 1 is shown in fig. 2, the convex part and the convex part in the sleeve 1 blocking the fixed block 4 are not the same), the sealing property in the sleeve 1 can be improved, and water is prevented from entering the sleeve 1 and then soaking the elastic sheet 41 or the conducting ring 33; meanwhile, after the contact body 2 moves into the sleeve 1, a group of sealing rings 35 can be extruded, so that the sealing rings 35 further seal the interior of the sleeve 1; a set of sealing rings 35 may also be replaced by a spring for compression of the contact body 2.

As shown in fig. 2, the cross bar 31 is provided with two annular grooves 32, and two conductive rings 33 are respectively fixed in the two annular grooves 32; a guide cone 34 is fixed to the end of the cross bar 31 facing away from the contact body 2. The outer surface of the conducting ring 33 is flush with the outer surface of the cross bar 31, so that the end of the elastic sheet 41 is not blocked, and the guiding cone 34 can prevent the elastic sheet 41 from being separated from the cross bar 31 to limit the elastic sheet 41.

As shown in fig. 5 and 6, the pushing assembly includes a T-shaped cylinder 7 fixed at one end of the cross bar 31 away from the elastic piece 41, one end of the T-shaped cylinder 7 away from the cross bar 31 is a larger-diameter end and is provided with a semicircular groove, a half of a round ball 71 located outside the semicircular groove is placed in the semicircular groove, a housing 73 covering a part of the round ball 71 located outside the semicircular groove is fixed at one end of the T-shaped cylinder 7 away from the cross bar 31, a sealing head 74 extending to the outside of the sleeve 1 is fixed on the housing 73, and the diameter of the sealing head 74 located outside the sleeve 1 is the same as the diameter of the sleeve 1; the inner wall of the sleeve 1 close to the T-shaped cylinder 7 is provided with a third clamping groove, and the outer wall of the end with the larger diameter of the T-shaped cylinder 7 is provided with a third stepping ring gear 72 matched with the third clamping groove. The second embodiment is that the fixed column 3 and the contact body 2 on the left side of the cross bar 31 are replaced by a T-shaped cylinder 7, and the T-shaped cylinder 7 can be matched with the upper sealing head 74 and the cover 73 to further seal the interior of the sleeve 1, so that a better waterproof effect is achieved; when the sleeve 1 is clamped and fixed on the shoe 9 through the clamping piece 11, the clamping piece 11 can prevent the sleeve 1 from being separated from the shoe 9, when the brake pad 10 becomes thin after long-term use, the sealing head 74 is rubbed along with the brake pad 10, when the sealing head 74 is rubbed for a long time to expose the housing 73, so that the housing 73 is also worn and the ball 71 is exposed, the ball 71 is rotated when the brake pad 10 rubs the ball 71, pressure is applied to the ball 71 to push the T-shaped cylinder 7 to the fixed block 4, the cross rod 31 is moved to enable the end parts of the two elastic sheets 41 to be in contact with the part of the cross rod 31 between the two conductive rings 33, and then the circuit is disconnected to enable the vehicle to send out a yellow light early warning signal; when the ball 71 pushes the T-shaped cylinder 7 to move continuously as the brake pad 10 is continuously rubbed and thinned, the circuit is connected after the ends of the two elastic sheets 41 contact with the other conductive ring 33; when the brake pad 10 is continuously rubbed and thinned, and the end parts of the two elastic sheets 41 are separated from the other conducting ring 33, the circuit is disconnected for the second time, so that the vehicle sends a red light alarm signal to remind a driver of needing to replace the brake pad 10; the third clamping groove and the first clamping groove in the sleeve 1 are the same, and after the third stepping ring tooth 72 on the T-shaped cylinder 7 is clamped with the third clamping groove, the T-shaped cylinder 7 can be prevented from withdrawing from the sleeve 1; and a slotted hole for storing lubricating oil is also formed in the semicircular groove on the T-shaped cylinder 7.

When the brake pad 10 is thinned after long-term use, after the ball 21 is rubbed and rotated by a brake drum, the brake drum applies pressure to the ball 21 to push the contact body 2 into the sleeve 1, the fixed column 3 drives the cross rod 31 to move, so that the end parts of the two elastic sheets 41 are in contact with the part of the cross rod 31 between the two conductive rings 33, and the circuit is disconnected to make the vehicle send out a yellow light warning; when the brake pad 10 becomes thinner and thinner, the brake drum continues to apply pressure to the ball 21 to move the contact body 2 into the sleeve 1, and when the cross bar 31 moves to make the two elastic pieces 41 contact with the other conductive ring 33, the circuit is connected; after the brake pad 10 is thinned after being used continuously, when the end parts of the two elastic sheets 41 are separated from the other conducting ring 33, the circuit is disconnected for the second time, so that the vehicle sends a red light alarm to remind a driver that the brake pad 10 needs to be replaced in a short time, and the brake pad 10 cannot be used for a long time; the ball body 21 and the ball 71 are made of wear-resistant metal such as high manganese steel.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (7)

1. The utility model provides an automobile brake block wearing and tearing alarm device, includes sleeve (1), its characterized in that: a pushing assembly is arranged in the sleeve (1), the pushing assembly comprises a contact body (2) with one end inserted into the sleeve (1), a groove is formed in one end, located outside the sleeve (1), of the contact body (2), a rotatable ball (21) is placed in the groove, and one surface of the ball (21) is located outside the groove; the utility model discloses a contact structure, including contact body (2), horizontal pole (31), shell fragment (41) sliding connection on the conducting ring (33) that is close to horizontal pole (31) tip, the one end that contact body (2) are located sleeve (1) one end fixedly connected with fixed column (3) and insulating horizontal pole (31) in proper order, the cover is equipped with two at least conducting rings (33) on horizontal pole (31), has the interval between two conducting rings (33), the tip that is located horizontal pole (31) in sleeve (1) still is provided with two shell fragments (41), shell fragment (41) sliding connection is on conducting ring (33) that is close to horizontal pole (31) tip, the one end that contact body (2) were kept away from in sleeve (1) sets up two at least and connects the electric subassembly, two connect the electric subassembly with shell fragment (41) are connected and are formed conductive loop through the conducting ring.

2. The automobile brake pad wear alarm device according to claim 1, wherein: the electric connection assembly comprises a lead (5) inserted into one end, far away from the contact body (2), of the sleeve (1), and one end, located in the sleeve (1), of the lead (5) is fixed to one end, far away from the cross rod (31), of the elastic sheet (41); a fixed block (4) penetrated by a lead (5) is further fixed in one end of the sleeve (1) far away from the contact body (2), and one end of the elastic sheet (41) far away from the transverse rod (31) is fixed with one surface of the fixed block (4) close to the transverse rod (31); one end of the sleeve (1) far away from the contact body (2) is inserted with a lead tail end fixing body (6) which is contacted with the fixing block (4), and the lead tail end fixing body (6) is provided with a through hole for the lead (5) to pass through.

3. The automobile brake pad wear alarm device according to claim 1, wherein: a concave hole (22) used for storing lubricating oil is formed in the groove in the contact body (2), a first clamping groove is formed in the inner wall, in contact with the contact body (2), of the sleeve (1), and a group of first stepping ring teeth (23) matched with the first clamping groove to prevent the contact body (2) from withdrawing from the sleeve (1) are arranged on the outer wall of the contact body (2); the contact body (2) is provided with a sliding hole (24) which is half positioned outside the sleeve (1) and transversely arranged, and the sleeve (1) is connected with a pin (8) inserted into the sliding hole (24) in a threaded manner.

4. The automobile brake pad wear alarm device according to claim 2, wherein: the lead tail end fixing body (6) is located sleeve (1) outer one end and is fixed with sleeve pipe (51) of entangling lead (5), has still seted up No. two draw-in grooves on the inner wall that sleeve (1) and lead tail end fixing body (6) contacted, and the part that lead tail end fixing body (6) is located sleeve (1) is equipped with and is used for preventing No. two step-by-step ring tooth (61) that lead tail end fixing body (6) withdrawed from in sleeve (1) with No. two draw-in groove looks adaptation.

5. The automobile brake pad wear alarm device according to claim 1, wherein: the contact structure is characterized in that a protruding portion which is contacted with the outer wall of the fixing column (3) close to the cross rod (31) is arranged in the sleeve (1), and a group of sealing rings (35) which are located between the contact body (2) and the protruding portion in the sleeve (1) are sleeved on the fixing column (3).

6. The automobile brake pad wear alarm device according to claim 1, wherein: the cross rod (31) is provided with two annular grooves (32), and the two conducting rings (33) are respectively fixed in the two annular grooves (32); a guide cone (34) is fixed at one end of the cross bar (31) departing from the contact body (2).

7. The automobile brake pad wear alarm device according to claim 1, wherein: the pushing assembly comprises a T-shaped cylinder (7) with one end of the cross rod (31) departing from the elastic sheet (41) fixed, one end of the T-shaped cylinder (7) departing from the cross rod (31) is a larger-diameter end and is provided with a semicircular groove, a half of a ball (71) positioned outside the semicircular groove is placed in the semicircular groove, one end of the T-shaped cylinder (7) departing from the cross rod (31) is fixed with a housing (73) for covering the part of the ball (71) positioned outside the semicircular groove, a sealing head (74) extending out of the sleeve (1) is fixed on the housing (73), and the diameter of the sealing head (74) positioned outside the sleeve (1) is the same as the diameter of the sleeve (1); the inner wall of the sleeve (1) close to the T-shaped cylinder (7) is provided with a third clamping groove, and the outer wall of the end with the larger diameter of the T-shaped cylinder (7) is provided with a third stepping ring gear (72) matched with the third clamping groove.

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