CN101837816A - Brake device for vehicle - Google Patents

Abstract

The invention relates to a brake device of a vehicle, which comprises a frame and two wheels, wherein the brake device comprises a control unit and at least one brake unit. The control unit comprises a control member and a brake cable. The brake unit comprises a pivot seat fixedly arranged on the frame, a brake disc fixedly arranged on one of the wheels and provided with at least one embedded part, a brake piece penetrating through the pivot seat and provided with a clamping part embedded with the embedded part, and an elastic piece keeping the brake piece moving towards the brake disc.

Description

vehicle brakes

technical field

The invention relates to a brake device, in particular to a brake device for a vehicle that is towed or pushed.

Background technique

Due to the prevalence of bicycle leisure activities, leisure-related peripheral equipment is becoming more and more diverse, and trailers are one of them.

See also Fig. 1-shown in Fig. 3, it is the braking device 2 of a kind of trailer 1 in the prior art, and this trailer 1 is suitable for taking the baby or transporting goods, and comprises a vehicle frame 11, and two are arranged on this vehicle frame 11 respectively. The wheels 12 on the left and right sides, the vehicle frame 11 includes a bottom frame 111, a ceiling frame 112 connected to the bottom frame 111, two side push rods 113 respectively connected to both sides of the ceiling frame 112, and a connection The cross bar 114 of the side push rod 113 . The brake unit 2 includes two calipers 21 arranged on both sides of the bottom frame 111 and respectively used to clamp the wheel frame 121 of the wheel 12, a brake handle 22 pivotally connected with the side push rod 113, two brake handles 22 respectively The brake wire 23 connecting the brake handle 22 with the caliper 131 , and a limiting member 24 disposed on the cross bar 114 for locking the brake handle 22 in place.

When the trailer 1 is going to decelerate while moving, the brake line 23 is pulled by pulling the brake handle 22 to move upwards, so that the calipers 21 act and respectively clamp the wheel frames 121 to achieve the purpose of deceleration. In addition, when the brake handle 22 continues to be pulled up to be locked with the limiter 24, even if the user releases his hand at this time, the caliper 21 still clamps the wheel frame 121 respectively to make the trailer 1 Stay still.

Although the brake device 2 can make the trailer 1 have the function of braking, when the calipers 21 respectively clamp the wheel frames, a certain clamping force must be reached to keep the wheels 12 stationary, that is, the brake The handle 22 must move a considerable distance to tighten the brake line 23 so that the caliper 21 can produce sufficient clamping force, so that when the user's strength is small or can only be operated by one hand, Difficult to operate, and unable to make the caliper 21 produce enough clamping force to reduce the braking effect and other problems, and when the trailer 1 is going to brake when the trailer 1 is traveling on a bumpy road, the user is often unable to hold the trailer 1 stably due to vibration. The phenomenon that the brake lever 22 brakes will greatly reduce the braking effect.

This shows that the above-mentioned existing vehicle braking device obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently. In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. This is obviously the relevant industry. urgent problem to be solved. Therefore, how to create a vehicle braking device with a new structure is one of the current important research and development issues, and has also become a goal that the industry needs to improve.

Contents of the invention

The purpose of the present invention is to overcome the defects existing in the existing vehicle braking device and provide a vehicle braking device with a new structure. The technical problem to be solved is to make it easy to operate and have better braking effect.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. According to a brake device for a vehicle proposed in the present invention, the vehicle includes a frame including a wheel shaft tube, and two wheels connected to the wheel shaft tube and located on the left and right sides of the frame, the brake device for the vehicle It includes: a control unit, which is arranged on the vehicle frame, and includes a control part that changes between a braking position and a driving position, and a brake line connected with the control part; and at least one brake unit, including a pivot seat fixed on the axle tube, a brake disc fixed on one of the wheels and having at least one engaging portion, a brake piece passing through the pivot seat and connected to the brake line, and an elastic piece sleeved on the stopper, the stopper has an engaging part fitted with the engaging part, and a stop part, the two ends of the elastic part are connected with the stopper part and the stopper respectively The pivot seat pushes against and keeps the stop part moving towards the brake disc. When the control part is at the braking position, the catch part is acted by the elastic part to make the engaging part fit into the engaging part so that the The wheel cannot rotate, and when the control part is at the driving position, the brake part is acted by the brake line to disengage the engaging part from the engaging part so that the wheel can rotate.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

In the aforementioned brake device for vehicles, the brake disc of the braking unit has a plurality of interlocking parts arranged at intervals along the circumferential direction. Fit one of the above-mentioned engaging parts.

In the aforementioned braking device for a vehicle, the brake disc further has a body connected to the wheel, and a plurality of teeth disposed on the body along the circumferential direction, and each engaging portion is between two adjacent teeth. The gap, the engaging part is columnar.

In the aforementioned braking device for a vehicle, the catch member further has a pin, the pin has the engaging portion, and a connecting portion away from the engaging portion and connected to the brake wire.

In the aforementioned braking device for a vehicle, the braking member further has a collar, and the collar is fixed on the bolt and has the stop portion.

The brake device of the aforementioned vehicle, wherein the braking unit further includes two pivot lugs arranged on the axle tube along the long axis of the axle tube and respectively located on both sides of the pivot seat, and the pin passes through the pivot The seat is connected with the pivot ear adjacent to the wheel, and the brake line passes through another pivot ear and is connected with the connecting portion.

In the aforementioned brake device for vehicles, the elastic member is a compression spring.

The aforementioned vehicle braking device, wherein the control unit further includes a housing box arranged on the vehicle frame and having a long hole, the control member is pivoted to the housing box and is rod-shaped, and has a A pivoting section located in the housing box and connected to the brake line, and a driving section extending from the pivoting section and passing through the elongated hole for the user to pull.

In the aforementioned brake device for a vehicle, the elongated hole is bent and has a straight line and a bent portion extending from the straight line. When the control member is at the braking position, the driving section is When the control member is located at the driving position at the straight line portion, the driving section is located at the bending portion and abuts against the receiving box

Compared with the prior art, the present invention has obvious advantages and beneficial effects.

By fitting or disengaging the engaging portion of the detent member from the engaging portion of the brake disc, the wheel cannot rotate or can rotate. In this way, the braking device not only has easy operation, but also has a better braking effect.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a perspective view illustrating the situation when a brake device of an existing vehicle is installed on a trailer;

Fig. 2 is a schematic top view illustrating the situation when a caliper is arranged on a bottom frame;

Fig. 3 is a side view, illustrating the situation when a brake handle moves upwards and is locked in a stopper;

Fig. 4 is a perspective view illustrating the situation when the brake device of the vehicle of the present invention is applied to a vehicle;

Fig. 5 is a partial three-dimensional exploded view illustrating the composition of a detent unit;

Fig. 6 is a schematic diagram of a side view, illustrating the situation when a control member is located at a driving position, wherein only a part of one accommodating box is drawn;

Fig. 7 is a schematic cross-sectional view illustrating the situation when one engaging portion is disengaged from an embedding portion;

Figure 8 is a view similar to Figure 6 illustrating the control member in a brake position;

Fig. 9 is a view similar to Fig. 7, illustrating the situation when the engaging portion is engaged with the engaging portion.

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, characteristics and effects of the brake device for vehicles proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , as detailed below.

Please refer to Fig. 4, shown in Fig. 5, the applicable vehicle 3 of a preferred embodiment of the brake device of the vehicle of the present invention is a trailer, but is not limited to this, this vehicle 3 comprises a wheel shaft pipe 311 The vehicle frame 31, and two wheels 32 pivotally connected to the axle tube 311, the wheels 32 are located on the left and right sides of the vehicle frame 31 and are non-coaxially driven. The brake device includes a control unit 4 and two braking units 5 . It is worth noting that, when the wheels 32 are driven coaxially, the number of the braking unit 5 can be one.

4 and 6, the control unit 4 is arranged on the vehicle frame 31, and includes an accommodating box 41 arranged above the vehicle frame 31 and having an elongated hole 411, an accommodating box 41 pivotally arranged on the accommodating The box 41 has a rod-shaped control member 42 and a brake wire 43 . The elongated hole 411 is bent and has a straight portion 412 and a bent portion 413 extending from the straight portion 412 . The control member 42 is changed between a braking position and a driving position, and has a pivot section 421 located in the housing box 41 and connected with the brake line 43, and a pivot section 421 extending from the pivot section 421 and passing through The driving section 422 protruding from the elongated hole 411 for the user to pull. When the control member 42 is at the braking position, the driving section 422 is located at the straight line portion 412. When the control member 42 is at the driving position, the driving The segment 422 is located at the bending portion 413 and abuts against the receiving box 41 .

Please refer to Fig. 4, 5, and 7, each braking unit 5 includes a pivot seat 51 fixed on the axle tube 311, two pivots arranged on the axle tube 311 along the long axis of the axle tube 311 and respectively Pivot ears 52 located on two sides of the pivot base 51 , a brake disc 53 , a detent member 54 passing through the pivot base 51 , and an elastic member 55 sleeved on the detent member 54 . The brake disc 53 has a body 531 connected to one of the wheels 32, a plurality of teeth 532 disposed on the body 531 along the circumferential direction, and a plurality of engaging portions 533 arranged at intervals along the circumferential direction. In the embodiment, each engaging portion 533 is a gap between two adjacent tooth portions 532 . The latch 54 has a pin 541 and a collar 542 fixed on the pin 541. The collar 542 abuts against the pivot ear 52 and has a stopper 545. In this embodiment, The collar 542 is fixedly connected to the pin 541 by a headless screw 546 . The pin 541 has an engaging portion 543 that can be engaged with one of the engaging portions 533 , and a connecting portion 544 that is away from the engaging portion 543 and connected with the brake wire 43 . In this embodiment, The engaging portion 543 is columnar, and the connecting portion 544 is connected to the brake cable 43 by locking a screw 547 and a nut 548 . The two ends of the elastic member 55 respectively abut against the stop portion 545 and the pivot seat 51, and keep the stop portion 545 moving toward the brake disc 53. The elastic member 55 can be a rubber elastic body or a spring, In this embodiment, the elastic member 55 is a compression spring.

Please refer to Fig. 4, Fig. 6 and Fig. 7, and then explain how to use the brake device. When the user wants to move the vehicle 3, first pull the control part 42 to switch to the driving state and pull the brake line 43, At this time, the brake wire 43 pulls the latch 541 of each brake unit 5 with a greater force than the elastic member 55 pushes the brake 54 to move toward the brake disc 53, so the brake wire 43 pulls the latch 541 The engaging portion 543 is disengaged from the corresponding engaging portion 533 , so that the wheels 32 can rotate freely, and the user can move the vehicle 3 . Referring to Fig. 4, Fig. 8, and Fig. 9, on the contrary, when the user wants to stop the vehicle 3 from traveling or keep the vehicle 3 stationary, the user pulls the control member 42 to switch to the brake position, and the The active force of the brake wire 43 pulling the latch 541 of each detent unit 5 is less than the active force of the elastic member 55 pushing the detent member 54 to move towards the brake disc 53. Therefore, the detent member 54 is supported by the elastic member 55. By shifting, the engaging portion 543 is engaged with the engaging portion 533 so that the wheel 32 cannot rotate. In this way, the vehicle 3 can be stopped from running or the vehicle 3 can be kept stationary.

Since the brake device brakes by using the engaging portion 543 of the catch member 54 and the engaging portion 533 of the brake disc 53 to brake, compared with the existing brake device 2, the caliper 21 needs to be formed. In the case of braking with a certain clamping force, the operator only needs to pull the control member 42 with one hand to switch between the braking position and the exercise position to brake. , because the detent 54 is passed through the pivot base 51 and the pivot ear 52, so the detent 54 will not be affected by the vibration, and can still be stably pushed by the elastic member 55 to the lateral direction of the brake disc 53 Move, make this engaging portion 543 fit with this engaging portion 533 and brake, can not produce the situation that existing this brake device 2 is difficult to brake on the bumpy road surface, therefore, this brake device not only is easy to operate, also has Better braking effect, so the beneficial effects of the present invention can indeed be achieved.

It is worth noting that the engaging portion 533 of the brake disc 53 can also be in the shape of a column, while the engaging portion 543 of the pin 541 can be in the shape of a concave hole. In this way, the engaging portion 543 can be similar to the The engaging part 533 is fitted.

It is worth noting that when the width of the pivot seat 51 along the long axis of the axle tube 311 is wide enough to support the pin 541 to move toward the brake disc 533 smoothly, the pivot ear 52 can be omitted.

In addition, the pin 541 and the collar 542 can also be integrated into one part, so that the assembly time of the brake device can be further reduced.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all the content that does not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence still belong to the scope of the technical solution of the present invention.

Claims (9)

1. the brake gear of a vehicle, this vehicle comprises a vehicle frame that comprises a hub, and the wheel of two these vehicle frame left and right sides that are coupling with this hub and are positioned at, and the brake gear of this vehicle is characterized in that it includes:

A control unit is arranged at this vehicle frame, and comprises the control piece of a conversion between a normal danger and traveling-position, one with this control piece bonded assembly brake cable; And

At least one stopper unit, comprise a pivot seat that is fixedly arranged on this hub, a brake disc that is fixedly arranged on one of them of described wheel and has at least one embedding part, one be arranged in this pivot seat and with this brake cable bonded assembly brake, and elastic component that is sheathed on this brake, this brake has an engagement section chimeric with this embedding part, and stop section, these elastic component two ends respectively with this stop section and this pivot seat contact, and keep this stop section to move toward this brake disc, when this control piece is positioned at this normal danger, this brake is subjected to this elastic component effect to make this engagement section and this embedding part chimeric and this wheel can't be rotated, when this control piece was positioned at this traveling-position, this brake was subjected to this brake cable effect that this engagement section and this embedding part are broken away from and this wheel can be rotated.

2. the brake gear of vehicle as claimed in claim 1, the brake disc that it is characterized in that this stopper unit has a plurality of embedding parts that along the circumferential direction are provided with at interval, when this control piece was positioned at this normal danger, the engagement section of this stopper unit was chimeric with one of them of described embedding part.

3. the brake gear of vehicle as claimed in claim 2, it is characterized in that this brake disc also has one and this wheel bonded assembly body, and a plurality of tooth portions that along the circumferential direction are arranged at this body, each embedding part is the gap between adjacent two tooth portions, this engagement section is to be column.

4. the brake gear of vehicle as claimed in claim 3 is characterized in that this brake also has a latch, and this latch has this engagement section, and one away from this engagement section and with this brake cable bonded assembly connecting portion.

5. the brake gear of vehicle as claimed in claim 4 is characterized in that this brake also has a collar, and this collar is fixedly arranged on this latch and has this stop section.

6. the brake gear of vehicle as claimed in claim 5, it is characterized in that this stopper unit also comprise two along the major axis of this hub to being arranged at this hub and laying respectively at the pivot ear of these pivot seat both sides, this latch is arranged in the pivot ear of this pivot seat and contiguous this wheel, and this brake cable is passed another pivot ear and is connected with this connecting portion.

7. the brake gear of vehicle as claimed in claim 6 is characterized in that this elastic component is a compression spring.

8. the brake gear of vehicle as claimed in claim 1, it is characterized in that this control unit also comprises a container that is arranged at this vehicle frame and has a strip hole, this control piece is hubbed at this container and is shaft-like, and have one be positioned at this container and with this brake cable bonded assembly section that pivots, and one by this driving section that pivots section is extended and this strip hole that stretches through out supplies the user to pull.

9. the brake gear of vehicle as claimed in claim 8, it is characterized in that this strip hole is to be bending, and has a kink that a line part and are extended by this line part, when this control piece is positioned at this normal danger, this driving section is to be positioned at this line part, when this control piece was positioned at this traveling-position, this driving section was to be positioned at this kink and to support to terminate in this container.

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