CN219601345U - Brake device, brake castor and fuel generator set - Google Patents

Abstract

The utility model belongs to the technical field of fuel generator sets, and provides a brake device which is arranged on casters and/or a frame of the fuel generator set, and comprises: the brake disc is coaxially arranged with the trundle and fixedly connected with the trundle; and the locking component is arranged on the brake disc and/or the frame and is used for locking the rotation of the brake disc, and the locking component further provides a brake castor, comprises the brake device and further provides a fuel generator set, and the fuel generator set comprises the brake castor. The braking device, the braking trundle and the fuel generator set provided by the utility model have the advantages of simple structure, reasonable design, good braking effect and no damage to the trundle.

Description

Brake device, brake castor and fuel generator set

Technical Field

The utility model relates to the technical field of fuel generator sets, in particular to a brake device, a brake caster and a fuel generator set.

Background

Currently, a fuel generator set generally comprises a frame, an engine and a generator, and in order to facilitate the transfer of the fuel generator set, casters are usually arranged on the frame, and in order to facilitate the fixing of the fuel generator set after the fuel generator set is moved to a destination, braking devices are usually required to be arranged on the casters and/or the frame to lock the rotation of the casters.

However, in the prior art, most of casters with braking function drive the brake pad to abut against the outer circumferential surface of the caster by pedaling the caster, so that the purpose of braking is achieved by the friction between the brake pad and the outer circumferential surface of the caster.

The defects of the casters are that: the friction force between the brake block and the truckle is insufficient, so that the braking effect is not firm enough, the brake block is in conflict with the truckle, and the truckle is easy to damage in the braking process.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a braking device, a braking trundle and a fuel generator set so as to improve the braking effect of the trundle without damaging the trundle.

In order to achieve the above object, in a first aspect, the present utility model provides a brake device provided on a caster and/or a frame of a fuel generator set, comprising:

the brake disc is coaxially arranged with the trundle and fixedly connected with the trundle; and

and the locking assembly is arranged on the brake disc and/or the frame of the engine and is used for locking the rotation of the brake disc.

Further, the locking assembly includes:

the locking grooves are formed in the periphery of the brake disc, the number of the locking grooves is multiple, and the locking grooves are uniformly arranged around the axial lead of the brake disc;

the locking block is matched with the locking groove and can reciprocate between a first working position A and a second working position A along the direction approaching or separating from the locking groove, wherein when the locking block is positioned at the first working position A, the locking block is separated from the locking groove, and when the locking block is positioned at the second working position A, the locking block is positioned in one of the locking grooves;

the driving mechanism is arranged on the frame, the power output end of the driving mechanism is in transmission connection with the locking block, and the driving mechanism is used for driving the locking block to reciprocate between the first working position A and the second working position A.

Further, the driving mechanism includes:

the first driving arm is hinged with the frame, the second end of the first driving arm extends to the direction close to the locking block and is fixedly connected with the locking block, and the second end of the first driving arm can swing back and forth around the hinged center line of the first driving arm between a first working position B and a second working position B, wherein when the second end of the first driving arm is positioned at the first working position B, the locking block is positioned at the first working position A, and when the first driving arm is positioned at the second working position B, the locking block is positioned at the second working position A; and

the driving structure is arranged on the frame, the power output end of the driving structure is in transmission connection with the power input end of the first driving arm, and the driving structure is used for driving the first driving arm to swing back and forth between the first working position B and the second working position B.

Further, the driving structure includes:

the first end of the first driving arm is hinged with the frame, the second end of the first driving arm extends towards the direction close to the second end of the first driving arm, the second end of the second driving arm is connected with the first driving arm, the second end of the second driving arm can swing back and forth around the hinged center line of the second driving arm between a first working position C and a second working position C, when the second end of the driving arm is in the first working position C, the second end of the first driving arm is in the first working position B, and when the second end of the driving arm is in the second working position C, the second end of the first driving arm is in the second working position B; and

the driving unit is arranged on the frame, the power output end of the driving unit is in transmission connection with the power input end of the second driving arm, and the driving unit is used for driving the second end of the second driving arm to swing back and forth between the first working position C and the second working position C.

Further, the driving structure further includes:

the first end of the first elastic piece is connected with the second end of the second driving arm, and the second end of the first elastic piece is connected with the second end of the first driving arm;

the first end of the driving block is connected with the second driving arm, and the second end of the driving block extends towards the direction approaching to the first driving arm; and

when the second end of the first driving arm rotates in a direction close to the brake disc, the outer peripheral wall of the driving block is in contact with the side wall of one side of the first driving arm facing the axial lead of the brake disc, and when the second end of the first driving arm rotates in a direction far away from the brake disc, the outer peripheral wall of the driving block is in contact with the side wall of one side of the first driving arm facing away from the axial lead of the brake disc.

Further, the driving unit includes:

the third driving arm is arranged on one side of the first driving arm or the second driving arm, which is far away from the locking block, and is hinged with the frame, the first end of the third driving arm extends towards the direction of approaching the first driving arm or the second driving arm, the second end of the third driving arm extends towards the direction of separating from the first driving arm or the second driving arm, and the third driving arm can swing back and forth around the hinge center line of the third driving arm at a first working position D and a second working position D;

the first end of the push rod is fixedly connected with the first end of the third driving arm, the second end of the push rod is hinged with the second driving arm, and the included angle between the push rod and the third driving arm is alpha, wherein alpha is smaller than 180 degrees; and

a locking module for holding the third drive arm in the first or second operating position D;

when the third driving arm is at the first working position D, the second driving arm is at the first working position C, and when the third driving arm is at the second working position D, the second driving arm is at the second working position C.

Further, the illustrated locking module includes:

the locking block is arranged on one side of the push rod facing the third driving arm and is fixedly connected with the push rod;

the first end of the second elastic piece is connected with the push rod, the second end of the second elastic piece is connected with the third driving arm or the rack, and the second elastic piece has a tendency of enabling the push rod to rotate towards the direction close to the third driving arm in a natural state; and

a locking part which is arranged at one side of the first end of the third driving arm facing the locking block and comprises a first side wall, a second side wall and a third side wall, wherein the first side wall, the second side wall and the third side wall are sequentially connected to form a Z shape;

when the locking block is abutted with the first side wall, the third driving arm is in the first working position D, and when the locking block is abutted with the second side wall, the third driving arm is in the second working position D.

Further, the locking block and the push rod are integrally formed, and the locking block and the first driving arm are integrally formed.

In a second aspect, the utility model provides a brake castor comprising a brake device as defined in any one of the preceding claims.

In a third aspect, the present utility model provides a fuel generator set, including the brake caster described above.

The utility model has the beneficial effects that:

according to the braking device, the braking trundle and the fuel generator set, the rotation of the brake disc is locked through the locking assembly, so that the purpose of braking is achieved, the braking effect is good, and the trundle cannot be damaged in the braking process.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a perspective view of a brake assembly, brake casters, and a frame of a fuel-electric power generating unit in a first direction in accordance with an embodiment of the present utility model;

fig. 2 is an enlarged view at a shown in fig. 1;

FIG. 3 is a combined perspective view of the brake assembly, brake casters and frame of the fuel cell unit of FIG. 1 in a second direction (after hiding the casters and rims);

fig. 4 is an enlarged view at B shown in fig. 3;

fig. 5 is an enlarged view at C shown in fig. 4.

Reference numerals:

the brake disc mechanism comprises a frame 100, casters 200, a brake disc 310, a locking groove 311, a first driving arm 320, a locking block 321, a second driving arm 330, a first elastic member 340, a driving block 350, a third driving arm 360, a first side wall 361, a second side wall 362, a third side wall 363, a push rod 370, a locking block 371 and a second elastic member 380.

Description of the embodiments

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1-5, the present utility model provides a brake device that is provided on a caster 200 and/or a frame 100 of a fuel-electric power plant, which includes a brake disc 310 and a locking assembly.

The brake disc 310 is coaxially arranged with the caster 200 and fixedly connected with the caster 200. Specifically, the brake disc 310 is disposed on a side of the caster 200 facing the frame 100 and is fixedly connected to the hub of the caster 200. Preferably, the brake disc 310 is fixedly connected to the hub of the caster 200 by a plurality of bolts uniformly arranged around the rotation center line thereof, and the bolts are sleeved with a screw sleeve for securing the distance between the brake disc 310 and the hub of the caster 200. In use, the bolts sequentially pass through the brake disc 310, the threaded sleeve and the hub of the caster 200 and then are in threaded connection with the nuts. A locking assembly is provided on the brake disc 310 and/or the frame 100 of the engine, the locking assembly being used to lock the rotation of the brake disc 310.

In the use, when needing to brake truckle 200, lock truckle 200 through locking element to reach the purpose of restricting the rotation of brake disc 310, because brake disc 310 and wheel hub fixed connection, therefore, brake disc 310 can't rotate, thereby make wheel hub also can't rotate, and then reach the purpose of braking truckle 200.

The brake device with the structure locks the rotation of the brake disc 310 through the locking assembly, so that the brake effect is good, and the caster 200 cannot be damaged in the process of braking.

In one embodiment, the locking assembly includes a locking recess 311, a locking block 321, and a drive mechanism.

The locking grooves 311 are formed on the periphery of the brake disc 310, the number of the locking grooves 311 is plural, and the locking grooves 311 are uniformly arranged around the axial line of the brake disc 310. Preferably, the locking groove 311 is a dovetail groove with a narrow opening for the purpose of increasing the locking effect and reducing the braking distance.

The locking block 321 is fitted with the locking groove 311. When in use, the locking block 321 can be inserted into the locking groove 311 to lock the rotation of the brake disc 310, and when the locking block 321 is pulled out of the locking groove 311, the rotation of the brake disc 310 can be released. Specifically, the locking piece 321 is reciprocally movable between the first working position a and the second working position a in a direction approaching or separating from the locking groove 311, wherein the locking piece 321 is separated from the locking groove 311 when the locking piece 321 is in the first working position a, and at this time, the brake disc 310 is free to rotate. When the locking block 321 is in the second working position a, the locking block 321 is in one of the locking grooves 311, and at this time, the brake disc 310 cannot rotate, so as to achieve the purpose of locking the rotation of the brake disc 310.

The driving mechanism is arranged on the frame 100, the power output end of the driving mechanism is in transmission connection with the locking block 321, and the driving mechanism is used for driving the locking block 321 to reciprocate between a first working position A and a second working position A.

When the caster wheel is used, the driving mechanism drives the locking block 321 from the first working position A to the second working position A, so that the locking block 321 is inserted into the locking groove 311, thereby achieving the purpose of locking the rotation of the brake disc 310 and further achieving the purpose of braking the caster 200; the driving mechanism drives the locking block 321 from the second working position to the first working position, so that the locking block 321 is separated from the locking groove 311, thereby achieving the purpose of unlocking the brake disc 310 and further achieving the purpose of unlocking the brake of the caster 200.

The locking component with the structure has the advantages of simple structure, reasonable design and convenient operation.

In one embodiment, the drive mechanism includes a first drive arm 320 and a drive structure.

The first end of the first driving arm 320 is hinged to the frame 100, the second end extends in a direction approaching the locking block 321, and the second end of the first driving arm 320 is fixedly connected to the locking block 321. Preferably, the first driving arm 320 is integrally formed with the locking block 321. The second end of the first driving arm 320 is reciprocally swingable about its own hinge center line between a first working position B and a second working position B, wherein the locking block 321 is in the first working position a when the second end of the first driving arm 320 is in the first working position B, and the locking block 321 is in the second working position a when the first driving arm 320 is in the second working position B.

The driving structure is disposed on the frame 100, and a power output end of the driving structure is in transmission connection with a power input end of the first driving arm 320, and the driving structure is used for driving the first driving arm 320 to swing reciprocally between a first working position B and a second working position B.

When the caster wheel is used, the driving structure drives the first driving arm 320 to swing from the first working position B to the second working position B, the first driving arm 320 drives the locking block 321 from the first working position A to the second working position A, so that the locking block 321 is inserted into the locking groove 311, the purpose of locking the rotation of the brake disc 310 is achieved, and the purpose of braking the caster wheel 200 is achieved; the driving structure drives the first driving arm 320 to swing from the second working position B to the first working position B, and the first driving arm 320 drives the locking block 321 from the second working position a to the first working position a, so that the locking block 321 is separated from the locking groove 311, thereby achieving the purpose of unlocking the brake disc 310, and further achieving the purpose of unlocking the brake of the caster 200.

The driving mechanism with the structure has the advantages of simple structure, reasonable design and convenient operation.

In one embodiment, the drive structure includes a second drive arm 330 and a drive unit.

The second driving arm 330 is configured to drive the first driving arm 320 to move, where a first end of the second driving arm 330 is hinged to the frame 100, a second end of the second driving arm 330 extends in a direction approaching to a second end of the first driving arm 320, and a second end of the second driving arm 330 is connected to the first driving arm 320 and is capable of swinging reciprocally about its hinge center line between a first working position C and a second working position C. Wherein the second end of the first driving arm 320 is in the first working position B when the second end of the driving arm is in the first working position C, and the second end of the first driving arm 320 is in the second working position B when the second end of the driving arm is in the second working position C.

The driving unit is disposed on the frame 100, and a power output end of the driving unit is in transmission connection with a power input end of the second driving arm 330, and the driving unit is used for driving a second end of the second driving arm 330 to swing reciprocally between a first working position C and a second working position C.

When the caster braking device is used, the driving unit drives the second driving arm 330 to swing from the first working position C to the second working position C, the second driving arm 330 drives the first driving arm 320 to swing from the first working position B to the second working position B, the first driving arm 320 drives the locking block 321 from the first working position A to the second working position A, and the locking block 321 is inserted into the locking groove 311, so that the purpose of locking the rotation of the brake disc 310 is achieved, and the purpose of braking the caster 200 is achieved; the driving unit drives the second driving arm 330 to swing from the second working position C to the first working position C, the second driving arm 330 drives the first driving arm 320 to swing from the second working position B to the first working position B, and the first driving arm 320 drives the locking block 321 from the second working position a to the first working position a, so that the locking block 321 is separated from the locking groove 311, thereby achieving the purpose of releasing the locking of the brake disc 310, and further achieving the purpose of releasing the braking of the caster 200.

The driving structure of the structure has the advantages of simple structure, reasonable design and convenient operation.

Preferably, the hinge center line of the second driving arm 330 coincides with the hinge center line of the first driving arm 320.

In one embodiment, the driving structure further includes a first elastic member 340 and a driving block 350.

The first end of the first elastic member 340 is connected to the second end of the second driving arm 330, and the second end of the first elastic member 340 is connected to the second end of the first driving arm 320. Preferably, the first elastic member 340 is a spring.

The driving block 350 has a first end connected to the second driving arm 330 and a second end extending in a direction approaching the first driving arm 320. Preferably, the driving block 350 has a cylindrical shape, and the driving block 350 is rotatably connected to the second driving arm 330.

When the second end of the first driving arm 320 is turned in a direction approaching the brake disc in the natural state, that is, when the first elastic member 340 is turned to move the first driving arm 320 from the first operating position B to the second operating position B, the outer peripheral wall of the driving block 350 abuts against the side wall of the side of the first driving arm 320 facing the axial line of the brake disc. In use, when the second driving arm 330 swings from the first working position C to the second working position C, the first elastic member 340 pulls the first driving arm 320 to swing from the first working position B to the second working position B under the action of the elastic force of the first elastic member 340, and when the second driving arm 330 swings from the second working position C to the first working position C, the driving block 350 pushes the first driving arm 320 to swing from the second working position B to the first working position B under the action of the driving block 350.

In a natural state, when the second end of the first driving arm 320 is turned away from the disc rotor, that is, when the first elastic member 340 is turned from the second operating position B to the first operating position B, the outer peripheral wall of the driving block 350 abuts against the side wall of the first driving arm 320 on the side facing away from the axis line of the disc rotor. In use, when the second driving arm 330 swings from the first working position C to the second working position C, the driving block 350 pulls the first driving arm 320 to swing from the first working position B to the second working position B under the action of the driving block 350, and when the second driving arm 330 swings from the second working position C to the first working position C, the first elastic member 340 pushes the first driving arm 320 to swing from the second working position B to the first working position B under the action of the elastic force of the first elastic member 340.

Preferably, in the present embodiment, the first elastic member 340 has a tendency to move the first driving arm 320 from the first working position B to the second working position B. In this way, when the locking groove 311 does not correspond to the locking block 321 in the braking process, the first elastic member 340 can deform, so that the movement of the driving unit to drive the second driving arm 330 is not affected, and after the locking groove 311 corresponds to the locking block 321, the first elastic member 340 drives the first driving arm 320 to swing from the first working position B to the second working position B under the elastic force of the first elastic member 340, so that the locking block 321 is inserted into the locking groove 311. In the process of releasing the automation, when the driving unit drives the second driving arm 330 to swing from the second working position C to the first working position C, the driving block 350 drives the first driving arm 320 to swing along with the swinging of the second driving arm 330 under the action of the driving block 350, and the first driving arm 320 swings from the second working position B to the first working position B. The design is more reasonable, and the operation is more convenient.

The driving structure of the structure has simple structure and reasonable design.

In one embodiment, the drive unit includes a third drive arm 360, a push rod 370, and a locking module.

The third driving arm 360 is disposed at a side of the first driving arm 320 or the second driving arm 330 away from the locking block 321, the third driving arm 360 is hinged with the frame 100, and a first end of the third driving arm 360 extends in a direction approaching the first driving arm 320 or the second driving arm 330, and a second end extends in a direction separating from the first driving arm 320 or the second driving arm 330. Preferably, the second end of the third driving arm 360 is provided with a foot pedal. The third drive arm 360 is reciprocally swingable about its own hinge center line in the first working position D and the second working position D.

The push rod 370 has a first end fixedly coupled to the first end of the third drive arm 360 and a second end hinged to the second drive arm 330. And the angle between the push rod 370 and the third driving arm 360 is α, where α < 180 °. When in use, the second end of the third driving arm 360 is used for rotating the third driving arm 360, so that the included angle alpha between the third driving arm 360 and the push rod 370 is changed, and the purpose of driving the second driving arm 330 to rotate through the second end of the push rod 370 is achieved.

The locking module is used for keeping the third driving arm 360 in the first working position D or the second working position D. Specifically, when the third driving arm 360 is in the first working position D, the locking module keeps the third driving arm 360 in the first working position D under the action of the locking module, and when the third driving arm 360 is in the second working position D, the locking module keeps the third driving arm 360 in the second working position D under the action of the locking module.

In use, the third driving arm 360 is rotated from the first working position D to the second working position D through the second end of the third driving arm 360, the third driving arm 360 drives the second driving arm 330 from the first working position C to the second working position C through the push rod 370, the second driving arm 330 drives the first driving arm 320 from the first working position B to the second working position B, and the first driving arm 320 drives the locking block 321 from the first working position a to the second working position a.

When the third driving arm 360 rotates to the second working position D, the locking module keeps the third driving arm 360 at the second working position D under the action of the locking module, so that the second driving arm 330 is kept at the second working position C through the push rod 370, and the first driving arm 320 is kept at the second working position B through the second driving arm 330, so that the purpose of keeping the locking block 321 at the second working position a through the first driving arm 320 is achieved.

The third driving arm 360 is rotated from the second working position D to the first working position D through the second end of the third driving arm 360, the third driving arm 360 drives the second driving arm 330 from the second working position C to the first working position C through the push rod 370, the second driving arm 330 drives the first driving arm 320 from the second working position B to the first working position B, and the first driving arm 320 drives the locking block 321 from the second working position a to the first working position a.

When the third driving arm 360 rotates to the second working position D, the locking module keeps the third driving arm 360 at the first working position D under the action of the locking module, so that the second driving arm 330 is kept at the first working position C through the push rod 370, and the first driving arm 320 is kept at the first working position B through the second driving arm 330, so that the purpose of keeping the locking block 321 at the first working position a through the first driving arm 320 is achieved.

The driving unit with the structure has the advantages of simple structure, reasonable design and convenient operation.

In one embodiment, the illustrated locking module includes a locking block 371, a second spring 380, and a locking portion.

The locking piece 371 is disposed at a side of the push rod 370 facing the third driving arm 360 and fixedly connected with the push rod 370. Preferably, the locking block 371 is integrally formed with the push rod 370. The first end of the second elastic member 380 is connected to the push rod 370, the second end is connected to the third driving arm 360 or the frame 100, and in this embodiment, the second end of the second elastic member 380 is connected to the frame 100. And in a natural state, the second elastic member 380 has a tendency to rotate the push rod 370 in a direction approaching the third driving arm 360. The locking part is disposed at a side of the first end of the third driving arm 360 facing the locking block 371, and includes a first side wall 361, a second side wall 362 and a third side wall 363, the first side wall 361, the second side wall 362 and the third side wall 363 being sequentially connected to form a zigzag shape, and the second side wall 362 extending in a radial direction of the rotating circumferential surface of the third driving arm 360.

When the lock block 371 abuts against the first sidewall 361, the third driving arm 360 is at the first working position D, and when the lock block 371 abuts against the second sidewall 362, the third driving arm 360 is at the second working position D.

Specifically, when the third driving arm 360 swings from the first operating position D to the second operating position D, the locking piece 371 slides along the first side wall 361 and the second side wall 362, and when the third driving arm 360 moves to the second operating position D, the locking piece 371 collides with the second side wall 362, and the second elastic member 380 has a tendency to move the push rod 370 in a direction approaching the third driving arm 360 under the action of the second elastic member 380, so the second elastic member 380 has a tendency to slide the locking piece 371 in a direction approaching the first side wall 361, but under the action of the second side wall 362, the second side wall 362 prevents the locking piece 371 from sliding in a direction approaching the first side wall 361, and therefore the push rod 370 cannot swing in a direction approaching the third driving arm 360, and the third driving arm 360 cannot rotate in the first operating position D, thereby achieving the purpose of holding the third driving arm 360 in the second operating position D.

The third driving arm 360 is swung again through the second end of the third driving arm 360, so that the locking block 371 leaves the second side wall 362 to slide along the third side wall 363, under the action of the third side wall 363, the third side wall 363 pushes the locking block 371 to move, so that the locking block 371 is higher than the second side wall 362, then, the third driving arm 360 is loosened, under the action of the second elastic piece 380, the second elastic piece 380 enables the push rod 370 to swing towards the direction close to the third driving arm 360, and therefore, the locking block 371 slides to the first side wall 361 and is in interference with the first side wall 361, and when the locking block 371 is in interference with the first side wall 361, the push rod 370 cannot continue to move towards the direction close to the third driving arm 360 under the action of the second elastic piece 380, so that the purpose of keeping the third driving arm 360 at the first working position D is achieved.

In a second aspect, the present utility model provides a brake castor comprising a brake apparatus according to any one of the preceding claims.

In a third aspect, the present utility model provides a fuel generator set, including the brake caster described above.

In the description of the present utility model, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims (6)

1. A brake device provided on casters and/or a frame of a fuel generator set, comprising:

the brake disc is coaxially arranged with the trundle and fixedly connected with the trundle; and

a locking assembly provided on the brake disc and/or the frame for locking rotation of the brake disc;

the locking assembly includes:

the locking grooves are formed in the periphery of the brake disc, the number of the locking grooves is multiple, and the locking grooves are uniformly arranged around the axial lead of the brake disc;

the locking block is matched with the locking groove and can reciprocate between a first working position A and a second working position A along the direction approaching or separating from the locking groove, wherein when the locking block is positioned at the first working position A, the locking block is separated from the locking groove, and when the locking block is positioned at the second working position A, the locking block is positioned in one of the locking grooves;

the driving mechanism is arranged on the frame, the power output end of the driving mechanism is in transmission connection with the locking block and is used for driving the locking block to reciprocate between the first working position A and the second working position A;

the driving mechanism includes:

the first driving arm is hinged with the frame, the second end of the first driving arm extends to the direction close to the locking block and is fixedly connected with the locking block, and the second end of the first driving arm can swing back and forth around the hinged center line of the first driving arm between a first working position B and a second working position B, wherein when the second end of the first driving arm is positioned at the first working position B, the locking block is positioned at the first working position A, and when the first driving arm is positioned at the second working position B, the locking block is positioned at the second working position A; and

the driving structure is arranged on the frame, the power output end of the driving structure is in transmission connection with the power input end of the first driving arm, and the driving structure is used for driving the first driving arm to swing back and forth between the first working position B and the second working position B;

the driving structure includes:

the first end of the first driving arm is hinged with the frame, the second end of the first driving arm extends towards the direction close to the second end of the first driving arm, the second end of the second driving arm is connected with the first driving arm, the second end of the second driving arm can swing back and forth around the hinged center line of the second driving arm between a first working position C and a second working position C, when the second end of the driving arm is in the first working position C, the second end of the first driving arm is in the first working position B, and when the second end of the driving arm is in the second working position C, the second end of the first driving arm is in the second working position B; and

the driving unit is arranged on the frame, the power output end of the driving unit is in transmission connection with the power input end of the second driving arm, and the driving unit is used for driving the second end of the second driving arm to swing back and forth between the first working position C and the second working position C.

2. The brake apparatus of claim 1, wherein the drive structure further comprises:

the first end of the first elastic piece is connected with the second end of the second driving arm, and the second end of the first elastic piece is connected with the second end of the first driving arm;

the first end of the driving block is connected with the second driving arm, and the second end of the driving block extends towards the direction approaching to the first driving arm; and

when the second end of the first driving arm rotates in a direction close to the brake disc, the outer peripheral wall of the driving block is in contact with the side wall of one side of the first driving arm facing the axial lead of the brake disc, and when the second end of the first driving arm rotates in a direction far away from the brake disc, the outer peripheral wall of the driving block is in contact with the side wall of one side of the first driving arm facing away from the axial lead of the brake disc.

3. Brake device according to any one of claims 1 or 2, wherein the drive unit comprises:

the third driving arm is arranged on one side of the first driving arm or the second driving arm, which is far away from the locking block, and is hinged with the frame, the first end of the third driving arm extends towards the direction of approaching the first driving arm or the second driving arm, the second end of the third driving arm extends towards the direction of separating from the first driving arm or the second driving arm, and the third driving arm can swing back and forth around the hinge center line of the third driving arm at a first working position D and a second working position D;

the first end of the push rod is fixedly connected with the first end of the third driving arm, the second end of the push rod is hinged with the second driving arm, and the included angle between the push rod and the third driving arm is alpha, wherein alpha is smaller than 180 degrees; and

a locking module for holding the third drive arm in the first or second operating position D;

when the third driving arm is at the first working position D, the second driving arm is at the first working position C, and when the third driving arm is at the second working position D, the second driving arm is at the second working position C.

4. A brake arrangement according to claim 3, wherein the locking module comprises:

the locking block is arranged on one side of the push rod facing the third driving arm and is fixedly connected with the push rod;

the first end of the second elastic piece is connected with the push rod, the second end of the second elastic piece is connected with the third driving arm or the rack, and the second elastic piece has a tendency of enabling the push rod to rotate towards the direction close to the third driving arm in a natural state; and

a locking part which is arranged at one side of the first end of the third driving arm facing the locking block and comprises a first side wall, a second side wall and a third side wall, wherein the first side wall, the second side wall and the third side wall are sequentially connected to form a Z shape;

when the locking block is abutted with the first side wall, the third driving arm is in the first working position D, and when the locking block is abutted with the second side wall, the third driving arm is in the second working position D.

5. A brake castor comprising a brake apparatus according to any one of claims 1 to 4.

6. A fuel generator set comprising the brake caster of claim 5.