CN111364841A

CN111364841A - Intelligent drum brake lock with emergency lock safety protection function

Info

Publication number: CN111364841A
Application number: CN202010339563.9A
Authority: CN
Inventors: 应鸿峰
Original assignee: Taizhou Bodyguard Lock Co ltd
Current assignee: Taizhou Bodyguard Lock Co ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-07-03
Anticipated expiration: 2040-04-26
Also published as: CN111364841B

Abstract

The invention discloses an intelligent drum brake lock with an emergency lock safety protection function, and mainly relates to the field of intelligent drum brake locks. The drum brake device comprises a drum brake shell, a lock pin executing device and a driving assembly are arranged in the drum brake shell, an emergency lock matched with the lock pin executing device is arranged at one end of the drum brake shell, the lock pin executing device comprises a rack box, a connecting piece is arranged on the upper side of the rack box, a sliding block is arranged at the bottom of the connecting piece along the length direction of the rack box, a second sliding groove matched with the sliding block is arranged at the top of the rack box, a pressure spring mounting cavity is formed in the sliding block, a pressure spring is arranged in the pressure spring mounting cavity, the outer diameter of the pressure spring is larger than the width of the sliding block, a mounting groove matched with the pressure spring is formed in the second sliding groove, and a lock pin is arranged on the. The invention has the beneficial effects that: the safety and reliability of driving are achieved, the state of the lock pin can be monitored in real time, and personal safety is guaranteed.

Description

Intelligent drum brake lock with emergency lock safety protection function

Technical Field

The invention relates to the field of intelligent drum brake locks, in particular to an intelligent drum brake lock with emergency lock safety protection.

Background

The intelligent drum brake lock with the emergency lock safety protection function is one of intelligent drum brake locks, is widely applied to the electric vehicle industry, and has a certain anti-theft effect. However, the intelligent drum brake lock in the prior art still has the following defects: the existing intelligent drum brake lock only controls the on-off action of the lock pin to achieve the functions of unlocking and locking, but the safety problem is only to protect the lock pin in a control circuit, the real-time state of the lock pin is not monitored, if the lock pin moves and is staggered in the running process of a vehicle, certain risks can be brought to the running safety, and personal safety accidents can be caused once the lock pin is out of control. In addition, the lockhole of the emergent lock on current intelligence drum lock of stopping does not carry out totally closed design, and waterproof silt performance of preventing is poor, and the lockhole gets into silt easily and leads to breaking troubles such as not unlocking.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides an intelligent drum brake lock with an emergency lock for safety protection, which has the characteristics of safety and reliability in driving, can monitor the state of a lock pin in real time and ensure personal safety.

In order to achieve the purpose, the invention is realized by the following technical scheme:

an intelligent drum brake lock with emergency lock safety protection comprises a drum brake shell, wherein a lock pin executing device and a drive assembly providing driving force for the lock pin executing device are arranged in the drum brake shell, the drive assembly comprises a stepping motor and a control circuit, an emergency lock matched with the lock pin executing device is arranged at one end of the drum brake shell, a driving gear is arranged on the drive assembly, the lock pin executing device comprises a rack box, a rack meshed with the driving gear is horizontally arranged on the outer wall of the rack box, a first sliding groove matched with the rack box is arranged on the drum brake shell, the rack box is in sliding connection with the first sliding groove, a connecting piece is arranged on the upper side of the rack box, a sliding block is arranged at the bottom of the connecting piece along the length direction of the rack box, a second sliding groove matched with the sliding block is arranged at the top of the rack box, and the second sliding groove horizontally penetrates through the rack box, a pressure spring installation cavity penetrating through the sliding block along the width direction of the sliding block is arranged on the sliding block, a pressure spring is arranged in the pressure spring installation cavity, the outer diameter of the pressure spring is larger than the width of the sliding block, an installation groove matched with the pressure spring is arranged in the second sliding groove, the length of the installation groove is equal to that of the pressure spring installation cavity, the part, extending out of the pressure spring installation cavity, of the pressure spring is located in the installation groove, the end part of the pressure spring is abutted against the corresponding end of the installation groove, a lock pin is arranged on the connecting piece along the length direction of the second sliding groove, a lock pin sliding groove matched with the lock pin is arranged on the drum brake shell, a lock cylinder for emergency unlocking is arranged at the bottom of the lock pin, the emergency lock comprises an emergency lock head, an emergency lock cam is arranged at one end of the emergency lock head, a trapezoidal slide way matched, one end of the safety signal switch, which is close to the connecting piece, is provided with a switch button, one end of the connecting piece, which is close to the safety signal switch, is a trigger end of the switch button, one pin of the safety signal switch is connected with one group of coils in the stepping motor, and the other pin is connected with the other group of coils in the stepping motor.

Preferably, the drum brake shell is provided with a cover plate matched with the lock pin executing device.

Preferably, the one end of drive assembly is equipped with the lead wire and prevents the silt rubber circle, it passes the hole to be equipped with the lead wire on the silt rubber circle to prevent the lead wire, the lead wire prevents that the silt rubber circle is inlayed and is stopped on the casing and run through the drum and stop the casing at the drum.

Preferably, one end of the emergency lock head, which is far away from the emergency lock cam, is provided with a rubber silt-proof cover.

Preferably, one end, far away from trapezoidal slide, of the emergency lock cam is provided with a connecting square hole, and the end part of the emergency lock head is provided with a connecting square head matched with the connecting square hole.

Preferably, the stepping motor is in transmission connection with the driving gear through a gear set, and the stepping motor, the driving gear and the gear set are all located in the shell.

Preferably, the emergency unlocking column is positioned in the middle of the bottom of the lock pin.

Preferably, one end of the lock pin is provided with two connecting holes, and the connecting piece is provided with a connecting column matched with the connecting holes.

Preferably, the safety signal switch is a waterproof switch.

Compared with the prior art, the invention has the beneficial effects that:

the driving assembly is in transmission connection with the rack box through the driving gear and the rack, and the driving assembly drives the driving gear to rotate so as to drive the rack box to slide along the first sliding groove; the left end of the pressure spring is abutted to the left ends of the pressure spring mounting cavity and the mounting groove, and the right end of the pressure spring is abutted to the right ends of the pressure spring mounting cavity and the mounting groove, so that the connecting piece can slide along with the rack box; the connecting piece can also slide along a second sliding groove on the rack box, and when the connecting piece slides on the rack box, the pressure spring is compressed; when the driving assembly drives the rack box to slide, the connecting piece slides along with the rack box, and can drive the lock pin to extend out or retract into the lock pin sliding groove to complete locking or unlocking; the emergency lock is used for emergency opening, the emergency unlocking column is inserted into the trapezoidal slideway of the emergency lock cam and is abutted against the trapezoidal slideway, the emergency lock head is rotated, the emergency lock cam is rotated 180 degrees along with the emergency lock cam, so that the trapezoidal slideway generates an upper and lower fall to drive the emergency unlocking column to move horizontally, and further, the lock pin is driven to slide, and the aim of forcibly unlocking the lock in emergency is fulfilled; the safety signal switch is a normally open switch, the purpose of safe driving is achieved by utilizing the on-off of the safety signal switch, in an unlocking state, the lock pin presses the switch button, the safety signal switch is closed, the control circuit acquires the closed state of the safety signal switch at the moment, the control circuit automatically turns on the power supply, the electric vehicle normally drives, in the driving process, if the lock pin does not press the switch button abnormally, the safety signal switch is opened at the moment, the control circuit immediately turns off the power supply, and meanwhile, an alarm sound is given out to ensure the personal safety; the state of the lock pin can be monitored in real time, and safety and reliability in driving are ensured.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a second schematic perspective view of the present invention;

FIG. 3 is a schematic view of FIG. 1 with the cover plate removed;

FIG. 4 is a schematic view of FIG. 2 with the cover plate removed;

FIG. 5 is a third schematic view of the three-dimensional structure of the present invention with the cover plate removed;

FIG. 6 is a schematic structural view of the drum brake housing;

FIG. 7 is a schematic view of the position between the latch actuator and the safety signal switch;

FIG. 8 is a schematic view of the positions of the latch actuator, the safety signal switch, and the drive assembly in a bottom view;

FIG. 9 is a schematic structural view of a rack housing;

FIG. 10 is a schematic view of the internal structure of the housing;

FIG. 11 is a schematic structural view of the panic lock;

FIG. 12 is an exploded view of the panic lock;

FIG. 13 is a schematic view of the construction of the connector;

FIG. 14 is a schematic view of a connection structure between the connection member and the compression spring;

FIG. 15 is a schematic view of the latch construction;

FIG. 16 is a schematic view of the installation of the compression spring;

FIG. 17 is a schematic view of the position between the locking pin and the panic lock;

fig. 18 is a schematic diagram of a safety protection operating circuit.

The reference numbers in the drawings:

1. a drum brake housing; 11. a first chute; 12. a lock pin chute;

2. a locking pin actuator; 21. a rack box; 22. a rack; 23. a second chute; 24. mounting grooves;

3. a drive assembly; 31. a stepping motor; 32. a drive gear; 33. a housing;

4. an emergency lock; 41. an emergency lock head; 42. an emergency lock cam; 43. a trapezoidal slideway; 44. a rubber silt-proof cover; 45. connecting the square holes; 46. connecting the square head;

5. a connecting member; 51. a slider; 52. a pressure spring installation cavity; 53. a pressure spring; 54. a lock pin; 55. emergency unlocking of the lock cylinder; 56. connecting holes; 57. connecting columns;

6. a safety signal switch; 61. a switch button;

7. a cover plate;

8. the lead wire is a sand prevention rubber ring.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

Example (b): as shown in fig. 3, 4 and 5, the invention relates to an intelligent drum brake lock with emergency lock safety protection, which comprises a drum brake shell 1, wherein the drum brake shell 1 can be an aluminum shell, a lock pin executing device 2 is arranged in the drum brake shell 1, and a driving assembly 3 for providing driving force for the lock pin executing device 2 is provided, the driving assembly 3 comprises a shell 33, a stepping motor 31 and a control circuit, preferably, the driving assembly needs to be externally connected, a hole needs to be formed in the drum brake shell, in order to prevent silt from entering an inner cavity of the drum brake lock, one end of the driving assembly 3 is provided with a lead silt-proof rubber ring 8, the lead silt-proof rubber ring 8 is provided with a lead through hole, and the lead silt-proof rubber ring 8 is embedded in the drum brake shell 1 and penetrates through the drum brake shell 1. And an emergency lock 4 matched with the lock pin executing device 2 is arranged at one end of the drum brake shell 1. As shown in fig. 8, the driving assembly 3 is provided with a driving gear 32, the lock pin actuator 2 includes a rack box 21, a rack 22 engaged with the driving gear 32 is horizontally provided on an outer wall of the rack box 21, further, as shown in fig. 10, the stepping motor 31 is in transmission connection with the driving gear 32 through a gear set, and the stepping motor 31, the driving gear 32 and the gear set are all located in a housing 33, so as to provide sufficient power for the movement of the rack 22. As shown in fig. 6, a first sliding groove 11 adapted to the rack box 21 and a driving assembly mounting groove adapted to the driving assembly 3 are provided on the drum brake housing 1, the length of the first sliding groove 11 is greater than that of the rack box 21, the rack box 21 is slidably connected to the first sliding groove 11, and the rack box 21 can slide in the first sliding groove 11. As shown in fig. 7, a connecting piece 5 is arranged on the upper side of the rack box 21, as shown in fig. 13, a sliding block 51 is arranged at the bottom of the connecting piece 5 along the length direction of the rack box 21, as shown in fig. 9, a second sliding groove 23 adapted to the sliding block 51 is arranged at the top of the rack box 21, the second sliding groove 23 horizontally penetrates through the rack box 21, a pressure spring installation cavity 52 penetrating through the sliding block 51 along the width direction of the sliding block 51 is arranged on the sliding block 51, a pressure spring 53 is arranged in the pressure spring installation cavity 52, the outer diameter of the pressure spring 53 is larger than the width of the sliding block 51, preferably, the pressure spring 53 is made of stainless steel, and has strong corrosion resistance, long service life. Be equipped with the mounting groove 24 that suits with pressure spring 53 in the second spout 23, mounting groove 24 equals with the length of pressure spring installation cavity 52, the part that pressure spring 53 stretches out pressure spring installation cavity 52 is arranged in mounting groove 24 and the tip of pressure spring 53 and the corresponding end butt of mounting groove 24, as shown in fig. 16, the left end of pressure spring 53 simultaneously with the left end of mounting groove 24, the left end butt of pressure spring installation cavity 52, the right-hand member of pressure spring simultaneously with the right-hand member of mounting groove 24, the right-hand member butt of pressure spring installation cavity 52. A lock pin 54 is arranged on the connecting member 5 along the length direction of the second sliding groove 23, preferably, in order to ensure the firmness of the connection between the lock pin and the connecting frame, two connecting holes 56 are arranged at one end of the lock pin 54, and a connecting column 57 adapted to the connecting holes 56 is arranged on the connecting member 5. The drum brake shell 1 is provided with a lock pin sliding groove 12 corresponding to the lock pin 54, the bottom of the lock pin 54 is provided with an emergency unlocking column 55, and preferably, the emergency unlocking column 55 is located in the middle of the bottom of the lock pin 54. And an emergency unlocking column sliding groove matched with the emergency unlocking column 55 is arranged on the drum brake shell 1. Further, in order to protect the lock pin executing device and prevent the lock pin and other components from popping up, a cover plate 7 matched with the lock pin executing device 2 is arranged on the drum brake shell 1, and the cover plate 7 is fixed on the drum brake shell through screws. As shown in the attached drawing 11, the emergency lock 4 includes an emergency lock head 41, the emergency lock head 41 can adopt lock heads such as a common lock head, a pin tumbler lock or a magnetic pin tumbler coded lock, preferably, in order to prevent the keyhole of the emergency lock head from being blocked, one end of the emergency lock head 41 far away from the emergency lock cam 42 is provided with a rubber silt-proof cover 44, the rubber silt-proof cover is made of high-quality rubber material, and the design of a blocking type is adopted, so that the emergency lock has the advantages of good sealing performance and effectively preventing silt from entering. The one end of emergent tapered end 41 is equipped with emergent lock cam 42, and is preferred, as shown in fig. 12, for the convenience of the transmission between emergent tapered end and the emergent lock cam is connected, the one end that trapezoidal slide 43 was kept away from to emergent lock cam 42 is equipped with and connects square hole 45, the tip of emergent tapered end 41 is equipped with and connects square hole 45 adapted connection square head 46. The tip of emergent lock cam 42 is equipped with the trapezoidal slide 43 that suits with emergent post 55 of unblanking, the one end of first spout 11 is equipped with safety signal switch 6, and is preferred, safety signal switch 6 is waterproof switch, breaks down when avoiding wading, ensures that the signal reliably switches on, reaches the purpose of safe driving. Be equipped with the safety signal switch mounting groove that suits with safety signal switch 6 on the casing 1 of drum stopping, the one end that safety signal switch 6 is close to connecting piece 5 is equipped with shift knob 61, the one end that connecting piece 5 is close to safety signal switch 6 is shift knob trigger end. One pin of the safety signal switch 6 is connected with one group of coils in the stepping motor 31, and the other pin is connected with the other group of coils in the stepping motor 31, as shown in fig. 18, K represents the safety signal switch 6, a dashed line frame represents the stepping motor 31, the model is BY15, two groups of coils L1 and L2 are arranged inside the stepping motor 31, and the safety signal switch 6 is connected between L1 and L2.

The driving assembly 3 of the invention can drive the rack box 21 to slide along the first chute 11; the compression spring 53 can enable the connecting piece 5 to slide along with the rack box 21; the connecting piece 5 can also slide along the second sliding groove 23 on the rack box 21, and when the connecting piece 5 slides on the rack box 21, the pressure spring 53 is compressed; when the driving assembly 3 drives the rack box 21 to slide, the connecting piece 5 slides along with the rack box 21, and can drive the lock pin 54 to extend out or retract into the lock pin chute 12 to complete locking or unlocking; the emergency lock 4 is used for emergency opening of the invention, the emergency unlocking column 55 is inserted into the trapezoidal slideway 43 of the emergency lock cam 42 and is abutted against the trapezoidal slideway 43, the emergency lock head 41 is rotated, the emergency lock cam 42 is rotated 180 degrees along with the trapezoidal slideway 43 to generate an up-down fall to drive the emergency unlocking column 55 to move horizontally, and then the lock pin 54 is driven to slide, so that the aim of forcibly unlocking the lock in emergency is achieved; the safety signal switch 6 is a normally open switch, the purpose of safe driving is achieved by utilizing the on-off of the safety signal switch 6, in an unlocking state, the lock pin 54 presses the switch button 61, the safety signal switch 6 is closed, the control circuit acquires that the safety signal switch 6 is in a closed state at the moment, the control circuit automatically turns on a power supply, the electric vehicle normally drives, in the driving process, if the lock pin 54 is abnormal, the switch button 61 is not pressed, the safety signal switch is turned off at the moment, the control circuit immediately turns off the power supply, and meanwhile, an alarm sound is given out to ensure the personal safety; the state of the lock pin can be monitored in real time, and safety and reliability in driving are ensured.

Claims

1. The utility model provides a take emergent lock safety protection's intelligence drum to stop lock, includes that the drum stops casing (1), be equipped with lockpin final controlling element (2) in casing (1) are stopped to the drum, for lockpin final controlling element (2) provide drive assembly (3) of drive power, drive assembly (3) include step motor (31) and control circuit, the one end of casing (1) is stopped to the drum is equipped with emergent lock (4) that suit with lockpin final controlling element (2), characterized by: the drum brake is characterized in that a driving gear (32) is arranged on the driving assembly (3), the lock pin executing device (2) comprises a rack box (21), a rack (22) meshed with the driving gear (32) is horizontally arranged on the outer wall of the rack box (21), a first sliding groove (11) matched with the rack box (21) is arranged on the drum brake shell (1), the rack box (21) is connected with the first sliding groove (11) in a sliding mode, a connecting piece (5) is arranged on the upper side of the rack box (21), a sliding block (51) is arranged at the bottom of the connecting piece (5) along the length direction of the rack box (21), a second sliding groove (23) matched with the sliding block (51) is arranged at the top of the rack box (21), the second sliding groove (23) horizontally penetrates through the rack box (21), and a pressure spring installation cavity (52) penetrating through the sliding block (51) along the width direction of the sliding block (51) is arranged on the sliding, a pressure spring (53) is arranged in the pressure spring installation cavity (52), the outer diameter of the pressure spring (53) is larger than the width of the sliding block (51), an installation groove (24) matched with the pressure spring (53) is arranged in the second sliding groove (23), the length of the installation groove (24) is equal to that of the pressure spring installation cavity (52), the part of the pressure spring (53) extending out of the pressure spring installation cavity (52) is located in the installation groove (24), the end part of the pressure spring (53) is abutted to the corresponding end of the installation groove (24), a lock pin (54) is arranged on the connecting piece (5) along the length direction of the second sliding groove (23), a lock pin sliding groove (12) matched with the lock pin (54) is arranged on the drum brake shell (1), a lock column (55) to be unlocked urgently is arranged at the bottom of the lock pin (54), the emergency lock (4) comprises an emergency lock head (41), and an emergency lock cam (42) is arranged, the tip of emergency lock cam (42) is equipped with trapezoidal slide (43) that suits with emergency lock opening post (55), the one end of first spout (11) is equipped with safety signal switch (6), the one end that safety signal switch (6) are close to connecting piece (5) is equipped with shift knob (61), the one end that connecting piece (5) are close to safety signal switch (6) is shift knob trigger end, one of them a set of coil connection in a pin and the step motor (31) of safety signal switch (6), another pin and step motor (31) in another a set of coil connection.

2. The intelligent drum brake lock with the emergency lock safety protection function as claimed in claim 1, wherein the intelligent drum brake lock is characterized in that: and a cover plate (7) matched with the lock pin executing device (2) is arranged on the drum brake shell (1).

3. The intelligent drum brake lock with the emergency lock safety protection function as claimed in claim 1, wherein the intelligent drum brake lock is characterized in that: the one end of drive assembly (3) is equipped with lead wire and prevents silt rubber circle (8), it passes the hole to be equipped with the lead wire on silt rubber circle (8) to prevent leading wire, lead wire prevents that silt rubber circle (8) inlays and stops on casing (1) and run through the drum casing (1) of stopping at the drum.

4. The intelligent drum brake lock with the emergency lock safety protection function as claimed in claim 1, wherein the intelligent drum brake lock is characterized in that: one end of the emergency lock head (41) far away from the emergency lock cam (42) is provided with a rubber silt-proof cover (44).

5. The intelligent drum brake lock with the emergency lock safety protection function as claimed in claim 1, wherein the intelligent drum brake lock is characterized in that: one end, far away from trapezoidal slide (43), of emergency lock cam (42) is provided with a connecting square hole (45), and the end of emergency lock head (41) is provided with a connecting square head (46) matched with connecting square hole (45).

6. The intelligent drum brake lock with the emergency lock safety protection function as claimed in claim 1, wherein the intelligent drum brake lock is characterized in that: step motor (31) and drive gear (32) are connected through the gear train transmission between, step motor (31) and drive gear (32), gear train all are located shell (33).

7. The intelligent drum brake lock with the emergency lock safety protection function as claimed in claim 1, wherein the intelligent drum brake lock is characterized in that: the emergency unlocking column (55) is positioned in the middle of the bottom of the locking pin (54).

8. The intelligent drum brake lock with the emergency lock safety protection function as claimed in claim 1, wherein the intelligent drum brake lock is characterized in that: one end of the lock pin (54) is provided with two connecting holes (56), and the connecting piece (5) is provided with a connecting column (57) matched with the connecting holes (56).

9. The intelligent drum brake lock with the emergency lock safety protection function as claimed in claim 1, wherein the intelligent drum brake lock is characterized in that: the safety signal switch (6) is a waterproof switch.