CN109927689B - Disconnect-type service brake device and fork truck - Google Patents
Disconnect-type service brake device and fork truck Download PDFInfo
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- CN109927689B CN109927689B CN201711365650.6A CN201711365650A CN109927689B CN 109927689 B CN109927689 B CN 109927689B CN 201711365650 A CN201711365650 A CN 201711365650A CN 109927689 B CN109927689 B CN 109927689B
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Abstract
In order to overcome the problems of complex overall structure and troublesome maintenance operation in the conventional service brake device, the invention provides a separated service brake device, which comprises a pedal, a rotating arm, a return component, an installation structure and a brake master cylinder; the mounting structure is fixed on a cab, one end of the rotating arm is rotatably connected to the mounting structure, and the other end of the rotating arm is connected to the pedal; the tumbler can be driven to rotate from the initial position to the braking position by stepping on the pedal, and the return component drives the tumbler to return from the braking position to the initial position after the force for stepping on the pedal is relieved; the rotating arm is in separated abutting connection with a valve core of the brake master cylinder. Meanwhile, the invention also discloses a forklift of the separated service braking device. The separated service braking device provided by the invention is beneficial to optimizing the structure of the whole vehicle and reducing the cost.
Description
Technical Field
The invention belongs to the technical field of brake systems, and particularly relates to a separated service brake device and a forklift.
Background
The service braking device is used for stopping or decelerating the forklift, and the hydraulic braking device is one of the service braking devices.
The existing hydraulic brake device mainly comprises a pedal, a push rod, a bracket, a brake master cylinder and the like. The pedal is usually installed in the cab, one end of a push rod is moved by pressing down the pedal, the other end of the push rod is connected to a piston of a master cylinder, and the pedal and the master cylinder are installed through a bracket. The piston of the master cylinder is mounted in the master cylinder and can be actuated by the driver via a brake pedal mechanism. The hydraulic brake wheel cylinder is arranged on the brake bottom plate, is connected with a brake main cylinder arranged on the lower frame through a hydraulic oil pipe, and is controlled through the brake main cylinder.
In the existing service brake device, a pedal and a brake master cylinder are assembled on the same bracket, if the condition that a cab is separated from a lower frame (such as lifting, lateral moving, overturning and the like of the cab) is met, the problems of complex integral structure and troublesome overhauling operation can be caused by the fact that a hydraulic oil pipe is prolonged, fixed and bent and the like, and the cost can be increased.
Disclosure of Invention
The invention provides a separated service braking device and a forklift, and aims to solve the problems of complex overall structure and troublesome maintenance operation in the conventional service braking device.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in one aspect, an embodiment of the present invention provides a separated service braking device, including a pedal, a rotating arm, a return member, a mounting structure, and a brake master cylinder;
the mounting structure is fixed on a cab, one end of the rotating arm is rotatably connected to the mounting structure, and the other end of the rotating arm is connected to the pedal;
the tumbler can be driven to rotate from the initial position to the braking position by stepping on the pedal, and the return component drives the tumbler to return from the braking position to the initial position after the force for stepping on the pedal is relieved;
the rotating arm is in separated abutting connection with a valve core of the brake master cylinder, and when the rotating arm rotates from an initial position to a braking position, the rotating arm presses down the valve core of the brake master cylinder; when the rotating arm returns to the initial position from the braking position, the downward pressure of the rotating arm on the brake master cylinder is relieved, and the valve core of the brake master cylinder returns.
Optionally, the pivot arm has a curved rod structure with a middle bent portion, and the return member is connected to the middle bent portion of the pivot arm.
Optionally, the return member is a spring, one end of the spring is connected to the rotating arm, and the other end of the spring is connected to the cab.
Optionally, the rocking arm with the tip that the footboard is connected is opened has first commentaries on classics hole, the footboard bottom is provided with the second and changes the hole, first commentaries on classics hole with a pivot is changeed to the second interpolation in the hole, the cover is equipped with the torsional spring in the pivot, the one end butt of torsional spring the rocking arm, the other end butt of torsional spring the footboard.
Optionally, the mounting structure includes a mounting seat, a pin shaft and a shaft sleeve, the mounting seat includes an arch portion and a mounting portion connected to one side of the arch portion, the mounting portion is provided with a mounting hole, two side walls of the arch portion are respectively provided with a pin hole, the shaft sleeve is located between the two pin holes, the pin shaft penetrates through the shaft sleeve, and the pin shaft is fixed to the two pin holes; the rotating arm is provided with a rotating drum which is positioned in the arched part and is rotatably sleeved on the shaft sleeve.
Optionally, a through hole is formed in the top of the arch portion, a nut fixed to the top of the arch portion is arranged above the through hole, a limiting screw is connected to the nut in a threaded mode, a limiting block is arranged on the rotating arm, the lower end of the limiting screw extends into the arch portion, and when the pedal is located at an initial position, the lower end of the limiting screw abuts against the limiting block.
Optionally, a position on the rotating arm, which is abutted against the master cylinder, is rotatably connected with a roller, and an outer wall of the roller is abutted against a valve core of the master cylinder.
Optionally, the brake master cylinder includes a cylinder body, an elastic member and the valve core, the cylinder body is connected with a first oil pipe, a second oil pipe and a third oil pipe, the first oil pipe is connected with an energy accumulator, the second oil pipe is connected with an oil tank, the third oil pipe is connected with a brake, the valve core is slidably disposed inside the cylinder body, and one end of the valve core is exposed out of the cylinder body;
the valve core can slide to an oil inlet position from an oil return position under the driving of the rotating arm;
the elastic element is connected between the valve core and the cylinder body, and the valve core can be restored from an oil inlet position to an oil return position by virtue of the restoring force of the elastic element;
in the oil inlet position of the valve core, the second oil pipe is closed, and the first oil pipe is communicated with the third oil pipe;
and in the oil return position of the valve core, the first oil pipe is closed, and the second oil pipe is communicated with the third oil pipe.
Optionally, a connecting portion is disposed at an end of the cylinder, one end of the valve element, which is exposed out of the cylinder, penetrates through the connecting portion, and a connecting hole is formed in the connecting portion.
According to the separated type service braking device provided by the invention, the rotating arm and the pedal can be installed in the cab through the installation structure, the brake master cylinder is in separated type abutting joint with the rotating arm, the brake master cylinder can be independently installed on the lower frame, when the cab is separated from or assembled with the lower frame, the brake master cylinder and the rotating arm can be respectively separated from and combined with the cab and the lower frame for abutting joint, the operation of the separated type service braking device is not needed, and the operation is convenient and fast. And the problems of oil pipe extension and the like caused by cab separation do not need to be considered on the whole vehicle structure, the whole vehicle structure can be optimized, and the cost is reduced.
In another aspect, another embodiment of the present invention provides a forklift including the above-described split service brake device.
Drawings
FIG. 1 is a schematic structural diagram of a split service brake device according to an embodiment of the present invention;
FIG. 2 is an exploded view of a portion of a split service brake assembly according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a master cylinder of the split service brake device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a master cylinder of the split service brake device according to an embodiment of the present invention;
fig. 5 is a schematic diagram of the working principle of the separate service braking device according to an embodiment of the present invention.
The reference numbers in the drawings of the specification are as follows:
1. a pedal; 11. an anti-slip groove; 12. a second rotary hole; 13. a rotating shaft; 14. a torsion spring; 2. a rotating arm; 21. a first rotary hole; 22. a connecting plate; 221. perforating; 23. a second rod portion; 24. a middle bent part; 25. a first rod portion; 26. a rotating rod; 27. a roller; 28. a rotating drum; 29. a limiting block; 3. a return member; 4. a mounting structure; 41. a mounting seat; 411. an arch portion; 4111. a pin hole; 4112. a second hole site; 4113. a nut; 412. an installation part; 4121. mounting holes; 42. a pin shaft; 421. a flat plate portion; 422. a first hole site; 43. a set screw; 44. a limit screw; 45. a shaft sleeve; 5. a brake master cylinder; 51. a cylinder body; 52. a valve core; 53. a connecting portion; 531. connecting holes; 54. a first oil pipe; 55. a second oil pipe; 56. a third oil pipe; 57. an elastic member; 6. an accumulator; 7. an oil tank; 8. and a brake.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3, an embodiment of the invention discloses a split service brake device, which comprises a pedal 1, a rotating arm 2, a return component 3, a mounting structure 4 and a brake master cylinder 5.
The mounting structure 4 is fixed on a cab, one end of the rotating arm 2 is rotatably connected to the mounting structure 4, and the other end of the rotating arm 2 is connected to the pedal 1.
The arm 2 is driven to rotate from an initial position to a braking position by depressing the pedal 1, and the return member 3 drives the arm 2 to return from the braking position to the initial position after the force of depressing the pedal is released.
The brake master cylinder 5 is used for being connected with a lower frame, the rotating arm 2 is in separated abutting joint with a valve core 52 of the brake master cylinder 5, and when the rotating arm 2 rotates from an initial position to a braking position, the rotating arm 2 presses down the valve core 52 of the brake master cylinder 5 to form braking; when the rotating arm 2 returns to the initial position from the braking position, the downward pressure of the rotating arm 2 on the brake master cylinder 5 is released, and the valve core 52 of the brake master cylinder 5 returns to the original position, so that the braking is released.
In this embodiment, the phrase "the swivel arm 2 is detachably abutted against the valve core 52 of the master cylinder 5" means that the swivel arm 2 and the master cylinder 5 have a contact surface or a contact point which is abutted against each other, torque transmission is completed through the contact surface or the contact point, and the swivel arm 2 and the master cylinder 5 are not directly connected or not indirectly connected through other structures into an integral structure.
The separated service brake device provided by the invention is particularly suitable for vehicle structures with a cab and a lower frame which can be separated, such as a forklift. Rocking arm 2 and footboard 1 accessible mounting structure 4 install in the driver's cabin, separate master cylinder 5 with rocking arm 2, footboard 1 and mounting structure 4 simultaneously, can install master cylinder 5 alone on lower frame, butt between rocking arm 2 and the master cylinder 5, when driver's cabin and frame separation or aggregate erection, need not to operate this disconnect-type service brake device, convenient and fast. And the problems of oil pipe extension and the like caused by cab separation do not need to be considered on the whole vehicle structure, the whole vehicle structure can be optimized, and the cost is reduced.
In the present embodiment, as shown in fig. 2, the rotating arm 2 is a curved rod structure having an intermediate bent portion 24, one end of the rotating arm 2 is connected to the pedal 1, the return member 3 is connected to the intermediate bent portion 24 of the rotating arm 2, and the other end of the rotating arm 2 is rotatably connected to the mounting structure 4.
The rotating arm 2 is of a plate-shaped structure, the rotating arm 2 is divided into a first rod part 25 and a second rod part 23 at the middle bent part 24, the bending angle of the middle bent part 24 is 90 degrees, the first rod part 25 and the second rod part 23 are perpendicular to each other, one end, away from the middle bent part 24, of the first rod part 25 is rotatably connected with the mounting structure 4, the first rod is horizontally arranged at the initial position, one end, away from the middle bent part 24, of the second rod part 23 is connected with the pedal 1, an end bent part is formed at the end part, connected with the pedal 1, of the second rod part 23, and the bending angle of the end bent part is an obtuse angle so that the pedal 1 faces the direction of an operator.
It should be noted that in other embodiments, depending on the installation position of the installation structure 4 in the cab, other structures of the rotating arm 2, such as a circular arc shape and an irregular shape, may be adopted to achieve the same technical effect.
In the present embodiment, the return member 3 is a spring, one end of which is connected to the boom 2 and the other end of which is connected to the cab.
Specifically, a connecting plate 22 is provided on the intermediate bent portion 24 of the boom 2, a through hole 221 is provided on the connecting plate 22, one end of the spring is connected to the through hole 221, and the other end of the spring is connected to the cab.
The spring has the functions of: a restoring force is provided to return the swivel arm 2 from the braking position to the initial position. When the rotating arm 2 is rotated from the initial position to the braking position by the force applied by the pedal 1, the spring is stretched and elastically deformed; however, when the force applied to the pedal 1 is removed, the elastic deformation of the spring is restored and brings the rotating arm 2 back to the initial position from the braking position.
In other embodiments, the return member 3 may also adopt other structures that achieve the same function, such as a spring sheet, elastic rubber, and the like.
In this embodiment, footboard 1 slope sets up, just footboard 1 is provided with anti-skidding groove 11 in the one side up, rocking arm 2 be used for with the tip that footboard 1 is connected is opened has first commentaries on classics hole 21, footboard 1 bottom is provided with the second and changes hole 12, first commentaries on classics hole 21 with a pivot 13 is changeed the interpolation in hole 12 to the second, footboard 1 can be relative rocking arm 2 takes place to rotate at certain angle within range, the cover is equipped with torsional spring 14 on the pivot 13, the one end butt of torsional spring 14 rocking arm 2, the other end butt of torsional spring 14 footboard 1.
The pedal 1 is kept in an inclined state in an initial state through the torsion spring 14, when the foot of an operator treads the pedal 1, the rotating arm 2 is pressed down, meanwhile, as the pedal 1 and the rotating arm 2 are in a rotatable state, in the pressing down process, the inclined angle of the pedal 1 can be adjusted adaptively according to the inclined angle of the sole of the foot of the operator, and the torsion spring 14 is used for providing proper rotation damping of the pedal 1 and restoring force for restoring the pedal 1 to the initial state.
The mounting structure 4 comprises a mounting seat 41, a pin shaft 42 and a shaft sleeve 45, the mounting seat 41 comprises an arch part 411 and a mounting part 412 connected to one side of the arch part 411, a mounting hole 4121 is formed in the mounting part 412, a hole is formed in a corresponding position in a cab during mounting, a screw or bolt and other structures are arranged to penetrate through the mounting hole 4121 to fix the mounting part 412 in the cab, pin holes 4111 are formed in two side walls of the arch part 411 respectively, the shaft sleeve 45 is located between the two pin holes 4111, the pin shaft 42 penetrates through the shaft sleeve 45, and the pin shaft 42 is fixed to the two pin holes 4111; a flat plate portion 421 is connected to an end of the pin shaft 42, a first hole 422 is formed in the flat plate portion 421, a second hole 4112 is formed in the arched portion 411, and a positioning screw 43 is arranged to sequentially penetrate through the first hole 422 and the second hole 4112 to fix the pin shaft 42; a rotating drum 28 is arranged on the first rotating arm 2, the rotating drum 28 is located in the arch 411, and the rotating drum 28 is rotatably sleeved on the shaft sleeve 45, so that the rotating connection between the rotating arm 2 and the mounting structure 4 is realized.
In this embodiment, the number of the shaft sleeves 45 is 2, and 2 shaft sleeves 45 are sleeved on the pin shaft 42 side by side.
In order to limit the rotation angle of the rotating arm 2, a through hole (not shown) is formed in the top of the arch portion 411, a nut 4113 fixed to the top of the arch portion 411 is disposed above the through hole, a limit screw 44 is threadedly connected to the nut 4113, a limit block 29 is disposed on the rotating arm 2, the limit block 29 is located on the rotating arm 2 and faces one side of the arch portion 411, the lower end of the limit screw 44 extends into the arch portion 411, and the lower end of the limit screw 44 abuts against the limit block 29 when the pedal 1 is at an initial position, so that the rotating arm 2 is positioned at the initial position. On the other hand, in the braking position, the boom 2 is positioned by the master cylinder 5.
A roller 27 is rotatably connected to the boom 2 at a position abutting against the master cylinder 5, and an outer wall of the roller 27 abuts against a valve body 52 of the master cylinder 5.
Specifically, the rotating arm 2 is provided with a rotating rod 26, the rotating rod 26 is located in the arched portion 411, and the roller 27 is rotatably connected to the rotating rod 26.
The roller 27 is made of a tough, elastic and impact-resistant plastic material. The brake master cylinder is made of plastic materials, cannot be broken due to impact force at the moment of combination of a cab and a lower frame, and cannot be deformed or indented when the brake master cylinder 5 is pressed for a long time. In addition, the friction coefficient between the plastic material and the brake master cylinder 5 is small, so that large resistance cannot be generated when a driver steps on the pedal 1, and the abrasion to the brake master cylinder 5 can be reduced.
As shown in fig. 3 to 5, in the present embodiment, the brake master cylinder 5 is disposed on the lower frame, the brake master cylinder 5 includes a cylinder body 51, an elastic member 57, and the valve body 52, the cylinder body 51 is connected to a first oil pipe 54, a second oil pipe 55, and a third oil pipe 56, the first oil pipe 54 is connected to the accumulator 6, the second oil pipe 55 is connected to the oil tank 7, the third oil pipe 56 is connected to the brake 8, the valve body 52 is slidably disposed inside the cylinder body 51, and one end of the valve body 52 is exposed to the cylinder body 51.
The valve core 52 can slide in the cylinder 51 from a return position to an oil inlet position under the drive of the rotating arm 2.
The elastic member 57 is connected between the valve body 52 and the cylinder 51, and the valve body 52 is restored from the oil inlet position to the oil return position in the cylinder 51 by the restoring force of the elastic member 57.
The valve core 52 and the cylinder 51 are combined to obtain a two-position three-way valve.
In the oil inlet position of the valve core 52, the second oil pipe 55 is closed, the first oil pipe 54 is communicated with the third oil pipe 56, at the moment, the energy accumulator 6 is communicated with the brake 8, and hydraulic oil can be pressed into the brake 8 through the valve core 52 by the pressure of the energy accumulator 6, so that the brake is realized.
In the oil return position of the valve core 52, the first oil pipe 54 is closed, the second oil pipe 55 is communicated with the third oil pipe 56, at this time, the brake 8 is communicated with the oil tank 7, and the hydraulic oil in the brake 8 flows back to the oil tank 7 through the valve core 52, so that the brake is released.
The end of the cylinder 51 is provided with a connecting part 53, the connecting part 53 is plate-shaped, one end of the valve core 52 exposed out of the cylinder 51 penetrates through the connecting part 53, the connecting part 53 is provided with a connecting hole 531, and the cylinder 51 can be mounted on the lower frame by arranging a screw or a bolt to penetrate through the connecting hole 531.
Another embodiment of the invention provides a forklift comprising the above-mentioned split service brake device.
The brake master cylinder 5 is connected with a lower frame, the mounting structure 4 is fixedly arranged in a cab, the rotating arm 2 is rotatably connected to the mounting structure 4, the pedal 1 is connected with the rotating arm 2, and the brake master cylinder 5 is abutted to the rotating arm 2.
Adopt disconnect-type service brake device's fork truck has the advantage: when the cab is separated from or combined with the lower frame, the device does not need to be operated, and the operation is convenient and fast. And the problems of oil pipe extension and the like caused by cab separation do not need to be considered on the whole vehicle structure, the whole vehicle structure can be optimized, and the cost is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A separated service brake device is characterized by comprising a pedal, a rotating arm, a return component, a mounting structure and a brake master cylinder;
the mounting structure is fixed on a cab, one end of the rotating arm is rotatably connected to the mounting structure, and the other end of the rotating arm is connected to the pedal;
the tumbler can be driven to rotate from the initial position to the braking position by stepping on the pedal, and the return component drives the tumbler to return from the braking position to the initial position after the force for stepping on the pedal is relieved;
the brake master cylinder is connected to a lower frame, the rotating arm is in separated abutting joint with a valve core of the brake master cylinder, and when the rotating arm rotates from an initial position to a braking position, the rotating arm presses down the valve core of the brake master cylinder; when the rotating arm returns to the initial position from the braking position, the downward pressure of the rotating arm on the brake master cylinder is relieved, and the valve core of the brake master cylinder returns;
the tumbler and the valve core of the brake master cylinder are in separated abutting, namely the tumbler and the brake master cylinder are provided with contact surfaces or contact points which are abutted against each other, the moment is transmitted through the contact surfaces or the contact points, and the tumbler and the brake master cylinder are not directly connected or indirectly connected into an integral structure through other structures.
2. A split service brake device according to claim 1, wherein the pivot arm is of a knee lever construction having an intermediate bend, the return means being connected to the intermediate bend of the pivot arm.
3. A split service brake device according to claim 1 or 2, wherein the return member is a spring, one end of which is connected to the arm and the other end of which is connected to the cab.
4. The separated type service brake device according to claim 2, wherein the end of the rotating arm connected with the pedal is provided with a first rotating hole, the bottom of the pedal is provided with a second rotating hole, a rotating shaft is inserted in the first rotating hole and the second rotating hole, the rotating shaft is sleeved with a torsion spring, one end of the torsion spring is abutted to the rotating arm, and the other end of the torsion spring is abutted to the pedal.
5. The separated service brake device according to claim 1, wherein the mounting structure comprises a mounting seat, a pin shaft and a shaft sleeve, the mounting seat comprises an arch part and a mounting part connected to one side of the arch part, the mounting part is provided with a mounting hole, two side walls of the arch part are respectively provided with a pin hole, the shaft sleeve is positioned between the two pin holes, the pin shaft penetrates through the shaft sleeve, and the pin shaft is fixed on the two pin holes; the rotating arm is provided with a rotating drum which is positioned in the arched part and is rotatably sleeved on the shaft sleeve.
6. The separated service brake device according to claim 5, wherein a through hole is formed in the top of the arch portion, a nut fixed to the top of the arch portion is arranged above the through hole, a limit screw is connected to the nut in a threaded manner, a limit block is arranged on the rotating arm, the lower end of the limit screw extends into the arch portion, and when the pedal is in an initial position, the lower end of the limit screw abuts against the limit block.
7. The split service brake device according to claim 1, wherein a roller is rotatably connected to the pivot arm at a position abutting against the master cylinder, and an outer wall of the roller abuts against a spool of the master cylinder.
8. The separated service brake device according to claim 1, wherein the brake master cylinder comprises a cylinder body, an elastic member and the valve core, the cylinder body is connected with a first oil pipe, a second oil pipe and a third oil pipe, the first oil pipe is connected with an energy accumulator, the second oil pipe is connected with an oil tank, the third oil pipe is connected with a brake, the valve core is slidably arranged in the cylinder body, and one end of the valve core is exposed out of the cylinder body;
the valve core can slide to an oil inlet position from an oil return position under the driving of the rotating arm;
the elastic element is connected between the valve core and the cylinder body, and the valve core can be restored from an oil inlet position to an oil return position by virtue of the restoring force of the elastic element;
in the oil inlet position of the valve core, the second oil pipe is closed, and the first oil pipe is communicated with the third oil pipe;
and in the oil return position of the valve core, the first oil pipe is closed, and the second oil pipe is communicated with the third oil pipe.
9. The separated service brake device according to claim 8, wherein a connecting portion is disposed at an end of the cylinder, one end of the valve element exposed out of the cylinder extends out of the connecting portion, and a connecting hole is formed in the connecting portion.
10. A forklift truck comprising a split service brake device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711365650.6A CN109927689B (en) | 2017-12-18 | 2017-12-18 | Disconnect-type service brake device and fork truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711365650.6A CN109927689B (en) | 2017-12-18 | 2017-12-18 | Disconnect-type service brake device and fork truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109927689A CN109927689A (en) | 2019-06-25 |
| CN109927689B true CN109927689B (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711365650.6A Active CN109927689B (en) | 2017-12-18 | 2017-12-18 | Disconnect-type service brake device and fork truck |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112498313B (en) * | 2020-12-10 | 2022-02-22 | 中联重科安徽工业车辆有限公司 | Fork truck micro-motion and braking system and diesel fork truck |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004042813A (en) * | 2002-07-12 | 2004-02-12 | Nippon Yusoki Co Ltd | Brake unit of forklift |
| CN204775193U (en) * | 2015-07-15 | 2015-11-18 | 林德（中国）叉车有限公司 | Two pedal fork truck's braking control system |
| CN205469025U (en) * | 2016-01-13 | 2016-08-17 | 浙江中盾机械有限公司 | Take pedal brake pump |
| CN206456354U (en) * | 2017-02-17 | 2017-09-01 | 东莞市奥垦汽车泵业有限公司 | A kind of pedal gear for vavuum pump power brake |
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