CN110588601A - Foot brake link mechanism - Google Patents
Foot brake link mechanism Download PDFInfo
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- CN110588601A CN110588601A CN201910857534.9A CN201910857534A CN110588601A CN 110588601 A CN110588601 A CN 110588601A CN 201910857534 A CN201910857534 A CN 201910857534A CN 110588601 A CN110588601 A CN 110588601A
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- torsion bar
- pressing plate
- clamping plate
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- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 238000003825 pressing Methods 0.000 claims description 64
- 230000008859 change Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a foot brake connecting rod mechanism, which comprises a connecting rod mechanism and is characterized in that: a caliper disc brake is arranged on one side of the connecting rod mechanism, a brake disc connected with an output shaft of the motor is arranged in the caliper disc brake, a brake switch support plate is arranged on one side of the brake disc, a microswitch is arranged on the brake switch support plate, and the microswitch is electrically connected with the motor and can control the motor to be electrically connected with or disconnected from a power supply; when a brake pedal on the connecting rod mechanism is stepped by a foot, the connecting rod mechanism rotates to drive the caliper disc brake to enable the brake disc to be in a free state, and meanwhile, the motor is powered by the microswitch to work; when the brake pedal is released, the connecting rod mechanism resets to drive the caliper disc brake to enable the brake disc to be in a locked state, and meanwhile, the motor is powered off by the microswitch to stop working; the invention has simple structure and convenient operation.
Description
Technical Field
The invention belongs to the technical field related to braking systems, and particularly relates to a foot braking connecting rod mechanism.
Background
Braking is commonly known as braking. Stopping or reducing the speed of a running locomotive, vehicle, other transportation means, machine, or the like. The general principle of braking is that a wheel or disk is fixed on the high-speed shaft of the machine, and a brake shoe, belt or disk matched with the wheel or disk is mounted on the machine base, and under the action of external force, it can produce braking torque, and the braking mode includes oil pressure, mechanical, air pressure and vacuum boosted air pressure, spring energy-storage, exhaust auxiliary brake, engine idle auxiliary brake and electromagnetic turbine retarder.
The prior foot brake link mechanism technology has the following problems: the existing foot braking link mechanism is labor-consuming in braking due to the fact that a transmission mechanism is complex when the existing foot braking link mechanism is used, and braking steps are complex in braking, so that the existing foot braking link mechanism cannot timely and effectively brake when braking.
Disclosure of Invention
The present invention is directed to a foot brake link mechanism, so as to solve the problem that the conventional foot brake link mechanism proposed in the above-mentioned background art has complicated operation steps during braking, which may result in a poor braking effect.
In order to achieve the purpose, the invention provides the following technical scheme: the foot brake linkage mechanism comprises a linkage mechanism, wherein a caliper disc brake is arranged on one side of the linkage mechanism, a brake disc connected with an output shaft of a motor is arranged in the caliper disc brake, a brake switch support plate is arranged on one side of the brake disc, a microswitch is arranged on the brake switch support plate, and the microswitch is electrically connected with the motor and can control the motor to be electrically connected with or disconnected from a power supply; when a brake pedal on the connecting rod mechanism is stepped by a foot, the connecting rod mechanism rotates to drive the caliper disc brake to enable the brake disc to be in a free state, and meanwhile, the motor is powered by the microswitch to work; when the brake pedal is released, the connecting rod mechanism is reset, the caliper disc brake is driven to enable the brake disc to be in a locked state, and meanwhile the microswitch enables the motor to be powered off to stop working.
Preferably, the link mechanism comprises a push rod, a hinged joint, a torsion bar assembly, a shaft seat, a pull rod, a pedal pin shaft and a brake pedal; the torsion bar assembly includes a first torsion bar plate, a torsion bar, and a second torsion bar plate; the first torsion bar plate, the torsion bar and the second torsion bar plate cannot change the positions of the first torsion bar plate, the torsion bar and the second torsion bar plate, and the first torsion bar plate and the second torsion bar plate are vertically distributed; two ends of the torsion bar are respectively and rotatably arranged in the shaft seats; the outer end part of the first torsion bar plate is hinged with the push rod through a hinge joint; a pull rod is rotatably arranged at the outer end part of the second torsion bar plate, and a brake pedal is rotatably arranged at the lower end of the pull rod; the brake pedal is connected with the lower end of the pull rod through a hinge joint, so that the brake pedal can rotate around the lower end of the pull rod relatively.
Preferably, the brake pedal is provided with a pedal pin shaft, the pedal pin shaft is hinged with the frame, and the pull rod can drive the torsion bar assembly to rotate.
Preferably, the pedal pad is sleeved on the brake pedal and used for being stepped on by foot.
Preferably, the caliper disc brake comprises a push plate, a first adjusting bolt, a spring adjusting block, a spring, an upper pressure plate rotating shaft, a mounting seat, a lower pressure plate, a first clamping plate, a second clamping plate, a screw, a second adjusting bolt and a top block; the mounting seat is fixed on the outer surface of the motor or a forklift frame; the push plate is hinged to one side of the front end of the mounting seat, and the outer end part of the push plate is hinged to the outer end part of the push rod through a hinge joint; the rear end of the mounting seat is horizontally provided with an upper pressing plate rotating shaft, and the rear ends of the upper pressing plate and the lower pressing plate are respectively and rotatably arranged on the upper pressing plate rotating shaft; a top block is arranged at one side part of the push plate and is positioned in an upper gap and a lower gap between the front ends of the upper pressure plate and the lower pressure plate; a screw rod is arranged at the lower part of the front end of the lower pressing plate, the screw rod sequentially penetrates through the lower pressing plate, the upper pressing plate and the spring from bottom to top, a spring adjusting block is arranged on the upper end surface side of the spring, the tail part of the spring adjusting block is locked by a nut, a first clamping plate and a second clamping plate are respectively and correspondingly arranged on the lower end surface of the upper pressing plate and the upper end surface of the lower pressing plate, and the brake disc connected with an output shaft of the motor is positioned between the first clamping plate and the second clamping plate; when a brake pedal is stepped on by a foot, the connecting rod mechanism rotates, the push rod pushes the push plate and the ejector block to rotate along the horizontal rotation center of the push plate and the ejector block, the ejector block pushes the lower pressing plate downwards, meanwhile, the ejector block pushes the upper pressing plate upwards, so that the distance between the first clamping plate and the second clamping plate is enlarged, the brake disc is simultaneously separated from contact with the first clamping plate and the second clamping plate and is in a free state, and meanwhile, the lower part of the lower pressing plate triggers the micro switch to enable the motor to be electrified to work; when the brake pedal is loosened, the ejector block resets, the upper pressing plate moves downwards, the lower pressing plate moves upwards, the first clamping plate and the second clamping plate reset, the brake disc is clamped simultaneously, the brake disc is in a locking state at the moment, and meanwhile the lower portion of the lower pressing plate is separated from contact with the microswitch, so that the motor is powered off and stops working.
Preferably, the top block comprises a first boss, a first groove, a second boss and a second groove; the lower end of one side of the top block is provided with a first boss and a first groove; the first groove is positioned on the inner side of the first boss; the upper end of the other side of the top block is provided with a second boss and a second groove; the second groove displaces the inner side of the second boss; the first boss and the first groove, and the second boss and the second groove are distributed in a manner of rotating by one hundred eighty degrees.
Preferably, a first threaded hole is formed in the front end of the upper pressure plate, and a first adjusting bolt is arranged in the first threaded hole of the upper pressure plate; a second threaded hole is formed in the front end of the lower pressing plate, and a second adjusting bolt is arranged in the second threaded hole of the lower pressing plate; when the pedal pad is not stepped on by the foot, the first adjusting bolt is inserted into the second groove, the second adjusting bolt is inserted into the first groove, and the first clamping plate and the second clamping plate clamp the brake disc; when a pedal pad is stepped on by a foot, the ejector block rotates along the horizontal rotation center of the ejector block, the second adjusting bolt slides out of the first groove, the first boss downwards jacks the lower pressing plate, meanwhile, the first adjusting bolt slides out of the second groove, the second boss upwards jacks the upper pressing plate, so that the distance between the first clamping plate and the second clamping plate is enlarged, the brake disc is simultaneously separated from the first clamping plate and the second clamping plate and is in a free state, and meanwhile, the lower end part of the second adjusting bolt triggers the micro switch to enable the motor to be electrified to work; when the pedal pad is loosened, the ejector block resets, the first clamping plate and the second clamping plate simultaneously clamp the brake disc, the brake disc is in a locking state at the moment, and meanwhile, the lower end portion of the second adjusting bolt is separated from the microswitch to enable the motor to be powered off and stop working.
Preferably, the upper pressing plate and the lower pressing plate are both strip-shaped plate-shaped structures, and are respectively arranged up and down symmetrically.
Compared with the prior art, the foot brake connecting rod mechanism provided by the invention has the following beneficial effects:
(1) the push plate and the ejector block are integrated, when a pedal pad is stepped on by a foot, the push plate 13 rotates, and meanwhile, the ejector block 25 tilts, so that the distance between an upper press plate and a lower press plate which are arranged up and down is increased, the upper press plate and the lower press plate are not in contact with a brake disc, and simultaneously, when the lower press plate moves downwards, a microswitch is triggered to electrify a motor to work;
(2) when the pedal pad is loosened by a foot, the upper pressing plate and the lower pressing plate reset under the action of the spring, the brake disc is clamped by the first clamping plate and the second clamping plate which are arranged up and down, and meanwhile, when the lower pressing plate moves upwards, the lower pressing plate is separated from the trigger microswitch, the motor is powered off and does not continue to work, so that the rotating shaft of the motor connected with the brake disc stops rotating.
Drawings
FIG. 1 is a schematic structural view of a foot brake linkage mechanism of the present invention;
FIG. 2 is an exploded view of the foot brake linkage of the present invention;
FIG. 3 is a schematic structural diagram of a caliper disc brake according to the present invention;
FIG. 4 is a schematic view of the top block structure of the present invention;
FIG. 5 is a schematic view of a linkage mechanism of the present invention;
FIG. 6 is a schematic structural view of a torsion bar assembly according to the present invention;
in the figure: 1. a motor; 2. a microswitch; 3. a brake switch support plate; 4. a brake disc; 5. a caliper disc brake; 13. pushing the plate; 14. a first adjusting bolt; 15. a spring adjusting block; 16. a spring; 17. an upper pressure plate; 18. an upper platen rotation axis; 19. a mounting seat; 20. a lower pressing plate; 21. a first splint; 22. a second splint; 23. a screw; 24. a second adjusting bolt; 25. a top block; 251. a first boss; 252. a first groove; 253. a second boss; 254. a second groove; 6. a link mechanism; 61. a push rod; 62. a hinge joint; 63. a torsion bar assembly; 631. a first torsion bar plate; 632. a torsion bar; 633. a second torsion bar plate; 64. a shaft seat; 65. a pull rod; 66. a pedal pin shaft; 67. a brake pedal; 7. a pedal pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides the following technical solutions: the foot brake linkage mechanism comprises a pedal pad 7 and a linkage mechanism 6; the link mechanism 6 comprises a push rod 61, a hinged joint 62, a torsion bar assembly 63, a shaft seat 64, a pull rod 65, a pedal pin shaft 66 and a brake pedal 67; the torsion bar assembly 63 includes a first torsion bar plate 631, a torsion bar 632, and a second torsion bar plate 633; the torsion bar assembly 63 is formed by welding a first torsion bar plate 631, a torsion bar 632 and a second torsion bar plate 633, the first torsion bar plate 631, the torsion bar 632 and the second torsion bar plate 633 are all made of stainless steel, the first torsion bar plate 631, the torsion bar 632 and the second torsion bar plate 633 are all welded and fixed, the first torsion bar plate 631, the torsion bar 632 and the second torsion bar plate 633 do not change positions with each other, and the first torsion bar plate 631 and the second torsion bar plate 633 are vertically distributed; both ends of the torsion bar 632 are rotatably arranged in the shaft seats 64 respectively; the outer end of the first torsion bar plate 631 is hinged with the push bar 61 through a hinge joint 62; a pull rod 65 is rotatably arranged at the outer end part of the second torsion bar plate 633, and a brake pedal 67 is rotatably arranged at the lower end of the pull rod 65; the brake pedal 67 is connected with the lower end of the pull rod 65 through a hinge joint 62, so that the brake pedal 67 can rotate around the lower end of the pull rod 65; a pedal pin shaft 66 is arranged on the brake pedal 67, and the pedal pin shaft 66 is hinged with the frame, so that the pull rod 65 can drive the torsion bar assembly 63 to move; the pedal pad 7 is arranged on the brake pedal 67, and in this embodiment, the pedal pad 7 is sleeved on the brake pedal 67 and used for stepping; a caliper disc brake 5 is arranged at the left end of the link mechanism 6, the caliper disc brake 5 comprises a push plate 13, a first adjusting bolt 14, a spring adjusting block 15, a spring 16, an upper pressure plate 17, an upper pressure plate rotating shaft 18, a mounting seat 19, a lower pressure plate 20, a first clamping plate 21, a second clamping plate 22, a screw 23, a second adjusting bolt 24 and a top block 25, and the horizontal part of the mounting seat 19 is fixed on the outer surface of the motor 1 or a forklift frame (not shown); the push plate 13 is hinged to the left side of the front end of the mounting seat 19, and the outer end part of the push plate 13 is hinged to the outer end part of the push rod 61 through a hinge joint 62; an upper platen rotating shaft 18 is horizontally arranged at the rear end of the mounting seat 19, and the rear ends of the upper platen 17 and the lower platen 20 are respectively and rotatably arranged on the upper platen rotating shaft 18; the right end of the push plate 13 is provided with a top block 25, and the top block 25 is positioned in an upper and lower gap between the front ends of the upper press plate 17 and the lower press plate 20; the top block 25 comprises a first boss 251, a first groove 252, a second boss 253 and a second groove 254; the left lower end of the top block 25 is provided with a first boss 251 and a first groove 252; the first groove 252 is located inside the first boss 251; the right upper end of the top block 25 is provided with a second boss 253 and a second groove 254; the second groove 254 displaces the inside of the second boss 253; the first boss 251 and the first groove 252, and the second boss 253 and the second groove 254 are distributed in a manner of rotating by one hundred eighty degrees; the upper pressing plate 17 and the lower pressing plate 20 are both of long strip-shaped plate structures, the upper pressing plate 17 and the lower pressing plate 20 are respectively arranged in a symmetrical up-down mode, the upper pressing plate 17 and the lower pressing plate 20 are both identical in shape, a screw rod 23 is arranged on the lower portion of the front end of the lower pressing plate 20, the screw rod 23 sequentially penetrates through the lower pressing plate 20, the upper pressing plate 17 and the spring 16 from bottom to top, a spring adjusting block 15 is arranged on the upper end surface side of the spring 16, the tail portion of the spring adjusting block 15 is locked through a nut, a first clamping plate 21 and a second clamping plate 22 are respectively and correspondingly arranged on the lower end surface of the upper pressing plate 17 and the upper end surface of the lower pressing plate 20, and the brake disc 4 connected with an output shaft (not marked) of the motor 1 is located between the; a first threaded hole (not marked) is formed in the front end of the upper pressure plate 17, and a first adjusting bolt 14 is arranged in the first threaded hole of the upper pressure plate 17; a second threaded hole (not marked) is formed in the front end of the lower pressing plate 20, and a second adjusting bolt 24 is arranged in the second threaded hole of the lower pressing plate 20; when the pedal pad 7 is not stepped on by a foot, the first adjusting bolt 14 is inserted into the second groove 254, the second adjusting bolt 24 is inserted into the first groove 252, and the first clamping plate 21 and the second clamping plate 22 clamp the brake disc 4; a brake switch support plate 3 is arranged at the outer end part of the mounting seat 19, a microswitch 2 is arranged on the brake switch support plate 3, the microswitch 2 is electrically connected with the motor 1 and can control the motor 1 to be electrically connected with or disconnected from a power supply (not shown); when the pedal pad 7 is stepped on by a foot, the link mechanism 6 rotates clockwise, the push rod 61 pushes the ejector block 25 to rotate along the horizontal rotation center, the second adjusting bolt 24 slides out from the first groove 252, the first boss 251 pushes the lower pressure plate 20 downwards, the first adjusting bolt 14 slides out from the second groove 254, the second boss 253 pushes the upper pressure plate 17 upwards, the distance between the first clamping plate 21 and the second clamping plate 22 is enlarged, the brake disc 4 is separated from the contact with the first clamping plate 21 and the second clamping plate 22 simultaneously and is in a free state, and meanwhile, the lower end of the second adjusting bolt 24 triggers the microswitch 2, so that the motor 1 is electrified to work; when the pedal pad 7 is loosened, the top block 25 resets, the upper pressure plate 17 moves downwards, the lower pressure plate 20 moves upwards, the first clamping plate 21 and the second clamping plate 22 reset, the brake disc 4 is clamped at the same time, the brake disc 4 is in a locking state at the moment, and the lower end part of the second adjusting bolt 24 is separated from the microswitch 2, so that the motor 1 is powered off and stops working.
The working principle and the using process of the invention are as follows: after the present invention is installed, when the brake linkage mechanism is to be used, the pedal pad 7 is stepped down by a user, so that the linkage mechanism 6 is driven to move under the action of the pedal pad 7, the linkage mechanism 6 is assembled by a push rod 61, a torsion rod assembly 63, a pull rod 65 and a brake pedal 67, the torsion rod assembly 63 is formed by welding a first torsion rod plate 631, a torsion rod 632 and a second torsion rod plate 633, the first torsion rod plate 631 and the second torsion rod plate 633 are distributed in a vertical manner, the pull rod 65 is vertically arranged, the lower end is hinged with the brake pedal 67 through a hinge joint 62, the upper end is hinged with the second torsion rod plate 633 through the hinge joint 62, the push rod 61 is horizontally arranged, one end is hinged with the push plate 13 through the hinge joint 62, the other end is hinged with a shaft seat 64 through the hinge joint 62 and the first torsion rod plate 631, both ends of the torsion rod 632 are hinged with the shaft seat 64, the brake pedal 67 is fixed on a vehicle frame, a pedal pin 66 is, the pedal pin shaft 66 is hinged with the frame, so that the pull rod 65 can drive the torsion bar assembly 63 to move, when the pedal pad 7 is not stepped on for braking, the first adjusting bolt 14 is positioned in the second groove 254, the second adjusting bolt 24 is positioned in the first groove 252, and under the action of the spring 16, the brake disc 4 is tightly clamped by the first clamping plate 21 and the second clamping plate 22, so that the forklift braking is realized; when the brake pedal 67 is stepped on, the pull rod 65 pulls the torsion bar assembly 63 to rotate, the push rod 61 and the push plate 13 are indirectly pushed to rotate, the first boss 251 and the second boss 253 are indirectly rotated, the first boss 251 and the second boss 253 are respectively contacted with the first adjusting bolt 14 and the second adjusting bolt 24, the first adjusting bolt 14 and the second adjusting bolt 24 are pushed to move, the spring force is overcome, the included angle between the first clamping plate 21 and the second clamping plate 22 is enlarged, the brake disc 4 is loosened, and meanwhile, the lower end part of the second adjusting bolt 24 triggers the microswitch 2, so that the motor 1 is electrified to work, and the forklift can run; when the pedal pad 7 is loosened by foot, under the action of the spring 16, the upper pressure plate 17 and the lower pressure plate 20 are reset, the brake disc 4 is clamped by the first clamping plate 21 and the second clamping plate 22 which are arranged up and down for braking, and meanwhile, when the lower pressure plate 20 moves upwards, the lower end part of the second adjusting bolt 24 is separated from the micro switch 2, so that the motor 1 is powered off and stops working, and the output shaft of the motor 1 stops rotating quickly, thereby realizing the purpose of braking the forklift.
Compared with the prior art, the foot brake connecting rod mechanism provided by the invention has the following beneficial effects:
(1) the push plate 13 and the top block 25 are integrated, when a foot steps on the pedal pad 7, the push plate 13 rotates, and the top block 25 tilts, so that the distance between an upper press plate and a lower press plate which are arranged up and down is increased, the upper press plate and the lower press plate are not in contact with a brake disc, and simultaneously, when the lower press plate moves downwards, a microswitch is triggered to electrify a motor to work;
(2) when the pedal is loosened by a foot, the upper pressing plate and the lower pressing plate reset under the action of the spring, the brake disc is clamped by the first clamping plate and the second clamping plate which are arranged up and down, and meanwhile, when the lower pressing plate moves upwards, the lower pressing plate is separated from the trigger microswitch, the motor is powered off and does not continue to work, so that the rotating shaft of the motor connected with the brake disc stops rotating.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (8)
1. Foot braking link mechanism, including link mechanism, its characterized in that: a caliper disc brake is arranged on one side of the connecting rod mechanism, a brake disc connected with an output shaft of the motor is arranged in the caliper disc brake, a brake switch support plate is arranged on one side of the brake disc, a microswitch is arranged on the brake switch support plate, and the microswitch is electrically connected with the motor and can control the motor to be electrically connected with or disconnected from a power supply; when a brake pedal on the connecting rod mechanism is stepped by a foot, the connecting rod mechanism rotates to drive the caliper disc brake to enable the brake disc to be in a free state, and meanwhile, the motor is powered by the microswitch to work; when the brake pedal is released, the connecting rod mechanism is reset, the caliper disc brake is driven to enable the brake disc to be in a locked state, and meanwhile the microswitch enables the motor to be powered off to stop working.
2. The foot brake linkage according to claim 1, wherein: the connecting rod mechanism comprises a push rod, a hinged joint, a torsion bar assembly, a shaft seat, a pull rod, a pedal pin shaft and a brake pedal; the torsion bar assembly includes a first torsion bar plate, a torsion bar, and a second torsion bar plate; the first torsion bar plate, the torsion bar and the second torsion bar plate cannot change the positions of the first torsion bar plate, the torsion bar and the second torsion bar plate, and the first torsion bar plate and the second torsion bar plate are vertically distributed; two ends of the torsion bar are respectively and rotatably arranged in the shaft seats; the outer end part of the first torsion bar plate is hinged with the push rod through a hinge joint; a pull rod is rotatably arranged at the outer end part of the second torsion bar plate, and a brake pedal is rotatably arranged at the lower end of the pull rod; the brake pedal is connected with the lower end of the pull rod through a hinge joint, so that the brake pedal can rotate around the lower end of the pull rod relatively.
3. The foot brake linkage according to claim 2, wherein: the brake pedal is provided with a pedal pin shaft which is hinged with the frame, and the pull rod can drive the torsion bar assembly to rotate.
4. The foot brake linkage according to claim 1, wherein: the pedal pad is sleeved on the brake pedal and used for being stepped on by feet.
5. The foot brake linkage according to claim 2, wherein: the caliper disc brake comprises a push plate, a first adjusting bolt, a spring adjusting block, a spring, an upper pressure plate rotating shaft, a mounting seat, a lower pressure plate, a first clamping plate, a second clamping plate, a screw rod, a second adjusting bolt and a top block; the mounting seat is fixed on the outer surface of the motor or a forklift frame; the push plate is hinged to one side of the front end of the mounting seat, and the outer end part of the push plate is hinged to the outer end part of the push rod through a hinge joint; the rear end of the mounting seat is horizontally provided with an upper pressing plate rotating shaft, and the rear ends of the upper pressing plate and the lower pressing plate are respectively and rotatably arranged on the upper pressing plate rotating shaft; a top block is arranged at one side part of the push plate and is positioned in an upper gap and a lower gap between the front ends of the upper pressure plate and the lower pressure plate; a screw rod is arranged at the lower part of the front end of the lower pressing plate, the screw rod sequentially penetrates through the lower pressing plate, the upper pressing plate and the spring from bottom to top, a spring adjusting block is arranged on the upper end surface side of the spring, the tail part of the spring adjusting block is locked by a nut, a first clamping plate and a second clamping plate are respectively and correspondingly arranged on the lower end surface of the upper pressing plate and the upper end surface of the lower pressing plate, and the brake disc connected with an output shaft of the motor is positioned between the first clamping plate and the second clamping plate; when a brake pedal is stepped on by a foot, the connecting rod mechanism rotates, the push rod pushes the push plate and the ejector block to rotate along the horizontal rotation center of the push plate and the ejector block, the ejector block pushes the lower pressing plate downwards, meanwhile, the ejector block pushes the upper pressing plate upwards, so that the distance between the first clamping plate and the second clamping plate is enlarged, the brake disc is simultaneously separated from contact with the first clamping plate and the second clamping plate and is in a free state, and meanwhile, the lower part of the lower pressing plate triggers the micro switch to enable the motor to be electrified to work; when the brake pedal is loosened, the ejector block resets, the upper pressing plate moves downwards, the lower pressing plate moves upwards, the first clamping plate and the second clamping plate reset, the brake disc is clamped simultaneously, the brake disc is in a locking state at the moment, and meanwhile the lower portion of the lower pressing plate is separated from contact with the microswitch, so that the motor is powered off and stops working.
6. The foot brake linkage according to claim 5, wherein: the top block comprises a first boss, a first groove, a second boss and a second groove; the lower end of one side of the top block is provided with a first boss and a first groove; the first groove is positioned on the inner side of the first boss; the upper end of the other side of the top block is provided with a second boss and a second groove; the second groove displaces the inner side of the second boss; the first boss and the first groove, and the second boss and the second groove are distributed in a manner of rotating by one hundred eighty degrees.
7. The foot brake linkage according to claim 6, wherein: a first threaded hole is formed in the front end of the upper pressure plate, and a first adjusting bolt is arranged in the first threaded hole of the upper pressure plate; a second threaded hole is formed in the front end of the lower pressing plate, and a second adjusting bolt is arranged in the second threaded hole of the lower pressing plate; when the pedal pad is not stepped on by the foot, the first adjusting bolt is inserted into the second groove, the second adjusting bolt is inserted into the first groove, and the first clamping plate and the second clamping plate clamp the brake disc; when a pedal pad is stepped on by a foot, the ejector block rotates along the horizontal rotation center of the ejector block, the second adjusting bolt slides out of the first groove, the first boss downwards jacks the lower pressing plate, meanwhile, the first adjusting bolt slides out of the second groove, the second boss upwards jacks the upper pressing plate, so that the distance between the first clamping plate and the second clamping plate is enlarged, the brake disc is simultaneously separated from the first clamping plate and the second clamping plate and is in a free state, and meanwhile, the lower end part of the second adjusting bolt triggers the micro switch to enable the motor to be electrified to work; when the pedal pad is loosened, the ejector block resets, the first clamping plate and the second clamping plate simultaneously clamp the brake disc, the brake disc is in a locking state at the moment, and meanwhile, the lower end portion of the second adjusting bolt is separated from the microswitch to enable the motor to be powered off and stop working.
8. The foot brake linkage according to claim 5, wherein: the upper pressing plate and the lower pressing plate are both of strip-shaped plate structures and are respectively arranged up and down symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857534.9A CN110588601B (en) | 2019-09-09 | 2019-09-09 | Foot brake link mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857534.9A CN110588601B (en) | 2019-09-09 | 2019-09-09 | Foot brake link mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110588601A true CN110588601A (en) | 2019-12-20 |
| CN110588601B CN110588601B (en) | 2024-06-11 |
Family
ID=68858823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910857534.9A Active CN110588601B (en) | 2019-09-09 | 2019-09-09 | Foot brake link mechanism |
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Cited By (1)
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| CN110588601B (en) | 2024-06-11 |
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