Brake structure and four-wheel riding type mini-tiller

Abstract

The utility model belongs to the technical field of brake systems, and particularly relates to a brake structure which comprises a foot brake pedal and further comprises a hand brake control part, after the foot brake pedal is stepped down, the hand brake control part can be operated to prevent the foot brake pedal from rebounding, during driving, when only the foot brake part is used, the foot brake pedal is stepped, a brake pad can be controlled to brake, and when the foot brake pedal is released, the brake pad can be controlled to brake. The foot brake pedal can automatically rebound; according to the scheme, after the foot brake pedal is stepped on, the hand brake control part is arranged to limit the foot brake pedal, so that the foot brake pedal cannot rebound, the braking state of the brake pad is kept, and the hand brake function is achieved; according to the four-wheel riding type mini-tiller, the hand brake structure is simplified, and the equipment cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to brake system technical field, concretely relates to a brake structure and four-wheel riding type mini -cultivator. BACKGROUND

[0002] Four-wheel riding type mini -cultivator, operator can carry out riding driving, through shifting and replacement tillage machine and walking wheel, can realize multiple walking mode and tillage mode.

[0003] In order to meet the demand of riding driving, need to be equipped with corresponding brake system, current brake system generally includes hand brake and foot brake, hand brake is mainly used for locking vehicle when parking, foot brake is used for deceleration or stopping vehicle in the process of running, however, the hand brake structure of existing technology includes rotating handle near seat, rotating handle can be self-locked through ratchet and pawl, rotating handle is connected with cable, cable passes through chassis, extends to be connected with brake, and the structure is relatively complex, is applied to four-wheel riding type mini -cultivator, and the equipment cost is higher. UTILITY MODEL CONTENTS

[0004] In order to overcome the insufficient of prior art, one of purposes of the utility model is to provide a brake structure with simple structure and lower cost.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A brake structure includes a foot brake pedal, and a hand brake control part, when the foot brake pedal is stepped on, the hand brake control part can block the rebound of the foot brake pedal.

[0007] Working principle: in prior art, when driving, only using foot brake part, stepping on foot brake pedal can control brake pad to brake, and when releasing foot brake pedal, the foot brake pedal will automatically rebound, and in the present scheme, after stepping on foot brake pedal, the hand brake control part is arranged to limit the foot brake pedal, so that the foot brake pedal cannot rebound, and the state of brake pad braking is maintained, realizing the function of hand brake.

[0008] Compared with prior art, the utility model has the beneficial effects that:

[0009] The hand brake control part can limit the foot brake pedal, realize the function of hand brake, and the cable, ratchet and pawl in the hand brake structure of prior art are not needed, so that the hand brake structure is simplified, and the equipment cost is reduced.

[0010] As the preferred embodiment of the utility model, the hand brake control part includes a rotating rod and a limiting block, the rotating rod is provided with a torsional spring, the limiting block is fixedly connected to the rotating rod, and after the rotating rod rotates, the torsional spring is compressed, and the limiting block and the stepped-on foot brake pedal are limited.

[0011] Beneficial effect: Through the mutual cooperation of the rotating rod, torsion spring and limit block, after the rotating rod is rotated, it can limit each other with the foot brake pedal after being stepped on. Neither the rotating rod nor the foot brake pedal can be reset, thereby realizing the handbrake function and replacing the existing ratchet and pawl structure. The overall structure of this solution is simple and the equipment cost is low.

[0012] As a preferred embodiment of the present invention, the foot brake pedal includes a rotating sleeve, a rotating plate and a pedal body. The pedal body and the rotating plate are fixedly mounted on the rotating sleeve. The top of the rotating plate is provided with a slot that engages with the limit block.

[0013] Beneficial effect: By setting a coaxially rotating rotating plate and a pedal body, the rotating plate rotates along with the pedal body. Therefore, by limiting the rotating plate, the pedal body can be limited. Moreover, since the slot of the rotating plate is engaged with the limit block, the main force point is on the rotating plate, which avoids direct force on the pedal body, thereby improving the service life of the pedal body.

[0014] As a preferred embodiment of the present invention, when the limit block is engaged with the slot, the length direction of the rotating plate is parallel to the Z-axis direction, and the vertical and horizontal surfaces of the slot both rest against the limit block.

[0015] Beneficial effect: The pedals are arranged according to the above relationship, the vertical surface of the slot prevents the rotating plate from rebounding, and the horizontal surface of the slot prevents the rotating rod from rebounding, thereby achieving mutual limitation of the two.

[0016] As a preferred embodiment of the present invention, the slot is located on a side of the rotating plate away from the pedal body. When the limit block is engaged with the slot, the limit block can be disengaged from the slot by continuing to step on the body.

[0017] Beneficial effect: Through the above structure, when the handbrake state is released, the pedal rod is directly stepped down, the limit block loses the obstruction of the slot, and the limit block returns to its original position. After releasing the pedal rod, the pedal rod is no longer blocked by the limit block and can be restored to its original position. There is no need to operate the handbrake control part, and the operation is more convenient.

[0018] As a preferred embodiment of the present invention, the handbrake control unit also includes a fixed sleeve and a rotating handle, the fixed sleeve is fixedly mounted on the outer shell of the four-wheel riding micro-tiller, the rotating rod is passed through the fixed sleeve, the limit block is fixedly connected to one end of the rotating rod, and the rotating handle is detachably connected to the other end of the rotating rod, and the limit block and the rotating handle are respectively in contact with the two ends of the fixed sleeve.

[0019] Beneficial effect: With the above structure, the installation can be completed by passing the rotating rod through the fixed sleeve and then installing the rotating handle. The installation is convenient and the rotating rod can only rotate relative to the fixed sleeve and cannot be displaced laterally.

[0020] As a preferred embodiment of the present invention, when the foot brake pedal is not depressed, the limit block is located between the rotating plate and the housing of the four-wheel riding micro-tiller.

[0021] Beneficial effect: By setting the above structure, when the foot brake pedal is not stepped on, the limit block is blocked by the rotating plate, so that the rotating handle cannot be pulled up, avoiding accidental touching of the rotating handle, which causes the foot brake pedal to be unable to be stepped on.

[0022] The second purpose of the present utility model is to provide a four-wheel ride-on micro-tillage machine, which adopts the brake structure described above, has a simple overall brake structure, occupies a small space, and has low equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the handbrake in the brake structure embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the brake structure embodiment of the utility model when the foot brake pedal is not depressed;

[0025] Figure 3 It is a structural diagram of the handbrake control part in the brake structure embodiment of the present utility model.

[0026] The reference numerals include: foot brake pedal 1, rotating sleeve 11, rotating plate 12, pedal body 13, pull wire 14, slot 15, handbrake control part 2, rotating rod 21, limit block 22, fixing sleeve 23, rotating handle 24, torsion spring 25. DETAILED DESCRIPTION

[0027] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes and are not intended to limit the present invention.

[0028] In the description of this application, the terms "first", "second", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0029] See also Figure 1 and Figure 2As shown, the brake structure of this embodiment includes a foot brake pedal 1 and a hand brake control part 2. After the foot brake pedal 1 is stepped on, the hand brake control part 2 can be manipulated to prevent the foot brake pedal 1 from rebounding; by controlling the hand brake control part 2, the foot brake pedal 1 can be limited to realize the hand brake function, thereby simplifying the hand brake structure, and there is no need to set the cable part in the existing hand brake structure, thereby reducing the equipment cost.

[0030] Among them, see Figure 1 As shown, the foot brake pedal 1 includes a rotating sleeve 11, a rotating plate 12 and a pedal body 13. The pedal body 13 and the rotating plate 12 are both fixedly mounted on the rotating sleeve 11, with the pedal body 13 located on the outside and the rotating plate 12 located on the inside. Both extend radially of the rotating sleeve 11 and are arranged at an acute angle. In this embodiment, the rotating plate 12 is connected to the housing of the four-wheel riding micro-tiller through a pull wire 14 with a spring, so that after the pedal body 13 is stepped on, it can be restored to its original position through the pull wire 14.

[0031] Among them, see Figure 3 As shown, the handbrake control unit 2 includes a rotating rod 21 and a limit block 22. The rotating rod 21 is provided with a torsion spring 25, the middle part of the torsion spring 25 is sleeved on the fixed sleeve 23, one end of the torsion spring 25 is clamped on the shell of the four-wheel riding micro-tiller, and the other end of the torsion spring 25 is fixedly connected to the rotating rod 21, and the limit block 22 is fixedly connected to the rotating rod 21. The top of the rotating plate 12 is provided with a slot 15 that engages with the limit block 22. After the rotating rod 21 is rotated, the torsion spring 25 is compressed, and the limit block 22 and the foot brake pedal 1 after being stepped on are limited to each other; through the mutual cooperation of the rotating rod 21, the torsion spring 25 and the limit block 22, after the rotating rod 21 is rotated, it can be limited to each other with the foot brake pedal 1 after being stepped on, and the rotating rod 21 and the foot brake pedal 1 cannot be reset, thereby realizing the handbrake function and replacing the existing ratchet and pawl structure. The overall structure of this scheme is simple and the equipment cost is low.

[0032] In other embodiments, corresponding notches may be provided on the pedal body 13 , and the handbrake control unit 2 is limited by the notches.

[0033] Among them, see Figure 1 As shown, when the limit block 22 is engaged with the slot 15, the length direction of the rotating plate 12 is parallel to the Z-axis direction, and the vertical and horizontal surfaces of the slot 15 both rest on the limit block 22; according to the above relationship, the vertical surface of the slot 15 prevents the rotating plate 12 from rebounding, and the horizontal surface of the slot 15 prevents the rotating rod 21 from rebounding, thereby realizing mutual limitation of the two; in this embodiment, the Z-axis direction is a direction perpendicular to the horizontal plane.

[0034] Among them, see Figure 2As shown, the slot 15 is located on the side of the rotating plate 12 away from the pedal body 13. When the limit block 22 is engaged with the slot 15, continue to step on the pedal body 13 and the limit block 22 can be disengaged from the slot 15. Through the above structure, when the handbrake state is released, directly step on the pedal rod downward, the limit block 22 loses the obstruction of the slot 15, and the limit block 22 returns to its original position. After releasing the pedal rod, the pedal rod is no longer blocked by the limit block 22 and can be restored to its original position. There is no need to operate the handbrake control unit 2 anymore, and the operation is more convenient.

[0035] Among them, see Figure 3 As shown, the handbrake control unit 2 also includes a fixed sleeve 23 and a rotating handle 24. The fixed sleeve 23 is fixedly installed on the outer shell of the four-wheel riding micro-tiller, and the rotating rod 21 is inserted into the fixed sleeve 23. The limit block 22 is fixedly connected to one end of the rotating rod 21, and the rotating handle 24 is detachably connected to the other end of the rotating rod 21. The limit block 22 and the rotating handle 24 are respectively in contact with the two ends of the fixed sleeve 23; through the above structure, the rotating rod 21 is passed through the fixed sleeve 23, and then the rotating handle 24 is installed to complete the installation. The installation is convenient, and the rotating rod 21 can only rotate relative to the fixed sleeve 23, and cannot be displaced laterally.

[0036] Among them, see Figure 2 As shown, when the foot brake pedal 1 is not stepped on, the limit block 22 is located between the rotating plate 12 and the housing of the four-wheel ride-on micro-tiller; by setting the above structure, when the foot brake pedal 1 is not stepped on, the limit block 22 is blocked by the rotating plate 12, so that the rotating handle 24 cannot be pulled up, thereby avoiding accidental touching of the rotating handle 24, which causes the foot brake pedal to be unable to be stepped on.

[0037] The four-wheeled riding micro-tillage machine of the utility model adopts the brake structure described above, and the overall brake structure is simple, occupies a small space, and has low equipment cost.

[0038] Specific use (working) process:

[0039] During driving, the pedal body 13 can be stepped on to brake, and when the pedal body 13 is released, the pedal body 13 rebounds to its original position;

[0040] When the four-wheeled riding micro-tiller needs to stop, the pedal body 13 is stepped on to brake and slow down until it stops. After stopping, the foot keeps stepping on the pedal and the rotating handle 24 is rotated by hand. The rotating rod 21 drives the limit block 22 to rotate 90 degrees. The foot is released and the pedal body 13 rebounds (although it rebounds for a distance, the brake pad is still in the braking state) until the slot 15 is engaged with the limit block 22, so that the rotating plate 12 and the limit block 22 are mutually limited, realizing the handbrake function;

[0041] When the hand brake needs to be released, the pedal body 13 is directly stepped down, the limiting block 22 loses the block of the clamping groove 15, the limiting block 22 returns to the original position, after the stepping lever is released, the stepping lever is no longer blocked by the limiting block 22 and can return to the original position, and the hand brake control part 2 does not need to be operated again, so that the operation is more convenient.

[0042] The above embodiment is only a preferred embodiment of the present application, and cannot be used to limit the range of the present application. Any non-substantial change and replacement made by the person skilled in the art on the basis of the present application belongs to the range of the present application.

Claims

1. A brake structure, comprising a foot brake pedal, characterized in that: It also includes a handbrake control part. After the foot brake pedal is stepped on, the handbrake control part can be operated to prevent the foot brake pedal from rebounding; the handbrake control part includes a rotating rod and a limit block. The rotating rod is provided with a torsion spring. The limit block is fixedly connected to the rotating rod. After the rotating rod is rotated, the torsion spring is compressed, and the limit block and the stepped foot brake pedal are limited to each other; the foot brake pedal includes a rotating sleeve, a rotating plate and a pedal body. The pedal body and the rotating plate are fixedly mounted on the rotating sleeve. The top of the rotating plate is provided with a slot that engages with the limit block.

2. The brake structure according to claim 1, characterized in that: When the limiting block is engaged with the slot, the length direction of the rotating plate is parallel to the Z-axis direction, and the vertical surface and the horizontal surface of the slot both lean against the limiting block.

3. The brake structure according to claim 1, characterized in that: The slot is located on a side of the rotating plate away from the pedal body. When the limiting block is engaged with the slot, the limiting block can be disengaged from the slot when the pedal body is continuously stepped on.

4. The brake structure according to claim 1, characterized in that: The handbrake control unit also includes a fixed sleeve and a rotating handle. The fixed sleeve is fixedly installed on the outer shell of the four-wheel riding micro-tiller. The rotating rod is inserted into the fixed sleeve. The limit block is fixedly connected to one end of the rotating rod. The rotating handle is detachably connected to the other end of the rotating rod. The limit block and the rotating handle are respectively in contact with the two ends of the fixed sleeve.

5. The brake structure according to claim 1, characterized in that: When the foot brake pedal is not stepped on, the limit block is located between the rotating plate and the housing of the four-wheel riding micro-tillage machine.

6. A four-wheeled riding micro-tillage machine, characterized in that: A brake structure according to any one of claims 1 to 5 is employed.

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