Split type pedal parking braking system and agricultural machine

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a split type pedal parking braking system and agricultural machinery, the agricultural machinery comprises a cab and a chassis, the cab is mounted at the top of the chassis, and the split type pedal parking braking system comprises a pedal rocker arm type operating mechanism, a rocker arm transmission mechanism and a pull wire; wherein the pedal rocker arm type operating mechanism is mounted in a cab; the rocker arm transmission mechanism and the stay wire are both mounted in the chassis; the pedal rocker arm type operating mechanism is used for driving the rocker arm transmission mechanism to pull the stay wire to achieve braking. The brake system is designed to be of a split structure, the pedal rocker arm type operating mechanism is installed in the cab, and the rocker arm transmission mechanism and the stay wire are installed on the chassis, so that the parking brake system does not need to be disassembled when the cab is turned over, manpower and working hours are saved, the working efficiency and the maintenance convenience are greatly improved, and the cost is reduced. And the occupancy rate of the height space is small, so that the height size of the appearance of the whole machine can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery, and in particular to a split-type pedal parking brake system and agricultural machinery. Background Art

[0002] At present, most rice harvesters use pedal brakes. The hand brake is a drum brake that uses a ratchet handle to drive a cable, while the pedal brake is a direct connection between a pedal and a cable. Both have certain problems: (1) For the hand brake, this structure requires the design of a ratchet and a bracket, which occupies too much space and places high demands on the overall dimensions of the machine; (2) For the pedal brake, the pedal arm is located below the cab, which places high demands on the overall space; the pedal brake system is a non-separable structure, and when the cab is flipped, the pedal brake system needs to be disassembled, which is extremely inconvenient. Therefore, there is an urgent need to develop a parking brake system that occupies little space and does not need to be disassembled when the cab is flipped. Utility Model Content

[0003] The purpose of the present application is to provide a split pedal parking brake system and agricultural machinery, which to a certain extent solves the technical problem in the prior art of urgently needing to develop a parking brake system with a small height space occupancy rate and which does not need to be disassembled when the cab is flipped.

[0004] The present application provides a split pedal parking brake system, which is applied to agricultural machinery, and the agricultural machinery includes a cab and a chassis, the cab is installed on the top of the chassis, and the split pedal parking brake system includes: a pedal rocker arm operating mechanism, a rocker arm transmission mechanism and a pull wire;

[0005] Wherein, the pedal rocker-arm operating mechanism is installed in the cab; the rocker-arm transmission mechanism and the pull wire are both installed in the chassis; the pedal rocker-arm operating mechanism is used to drive the rocker-arm transmission mechanism to pull the pull wire to achieve braking.

[0006] In the above technical solution, further, the pedal rocker type operating mechanism includes a rotating shaft, a pedal connecting member, a pedal and a driving member; wherein one end of the pedal connecting member is rotatably connected to the cab through the rotating shaft, and the other end of the pedal connecting member is fixedly connected to the pedal;

[0007] The driving member is fixedly connected to the pedal connecting member and is located between the rotating shaft and the pedal; the bottom plate of the cab and the chassis are both provided with a first through hole, and the driving member is movably inserted into the first through hole.

[0008] In any of the above technical solutions, further, the pedal rocker arm operating mechanism also includes a return spring and a return spring hanging member; wherein, the return spring hanging member is connected to the pedal connecting member; one end of the return spring is connected to the return spring hanging member, and the other end of the return spring is connected to the cab.

[0009] In any of the above technical solutions, further, the pedal rocker arm type operating mechanism also includes a mounting seat, the mounting seat is fixed on the bottom plate of the cab, and the mounting seat is formed with a second through hole, the second through hole is located directly above the first through hole, and the driving member is movably arranged in the second through hole and the first through hole in sequence.

[0010] In any of the above technical solutions, further, the pedal rocker arm operating mechanism also includes a limit plate, and the limit plate is fixed to the bottom end of the driving member located in the chassis, and a sealing sponge is provided at the top end of the limit plate facing the cab.

[0011] In any of the above technical solutions, further, the split pedal parking brake system also includes a limiting mechanism, and when the pedal of the pedal rocker arm type operating mechanism is pressed down to a preset position, the limiting mechanism can limit the pedal.

[0012] In any of the above technical solutions, further, the limiting mechanism includes a pedal locking member and an operating rod; wherein, the pedal locking member is rotationally connected to the cab; the operating rod is fixedly connected to the pedal locking member; the pedal locking member forms a limiting slot, and the limiting slot can be clamped on the edge of the pedal to limit the pedal.

[0013] In any of the above technical solutions, further, the limiting mechanism also includes a support seat and a first return torsion spring; wherein, the support seat is fixed to the cab; the pedal locking member is rotatably connected to the support seat; one end of the first return torsion spring is connected to the pedal locking member, and the other end of the first return torsion spring is connected to the support seat.

[0014] In any of the above technical solutions, further, the rocker arm transmission mechanism includes a rotating component, a transmission component and a force spring; wherein the rotating component is rotatably connected to the chassis, one side of the rotating component located at the rotation connection point is connected to the transmission component, the other side of the rotating component located at the rotation connection point is connected to one end of the force spring, and the other end of the force spring is connected to the pull wire.

[0015] In any of the above technical solutions, further, the rocker arm transmission mechanism also includes a hanging member, a U-shaped mounting member and a locking member; wherein the hanging member is connected to the force spring; the U-shaped mounting member is installed on the edge of the hanging member through an opening and is fixed by the locking member.

[0016] In any of the above technical solutions, further, the U-shaped mounting component is provided with a mounting through hole, and one end of the pull wire passes through the mounting through hole and extends to the inside of the U-shaped mounting component to form a limited position knot.

[0017] In any of the above technical solutions, further, the rocker arm transmission mechanism also includes a limiting member, the limiting member is fixed to the chassis, and the limiting member extends to the rotating member and between the rotating member and the force spring.

[0018] In any of the above technical solutions, further, the rocker arm transmission mechanism also includes a second return torsion spring, the rotating component is rotatably connected to the shaft fixed on the chassis, and one end of the second return torsion spring is connected to the shaft, and the other end of the second return torsion spring is connected to the rotating component.

[0019] In any of the above technical solutions, further, the rotating member is a triangular plate, and one vertex angle thereof is connected to the transmission member, and the other vertex angle thereof is connected to one end of the force spring.

[0020] The present application also provides an agricultural machine, comprising a cab, a chassis and a split pedal parking brake system as described in any of the above technical solutions, wherein the cab is installed on the top of the chassis; the pedal rocker arm operating mechanism is installed in the cab; the rocker arm transmission mechanism and the pull wire are both arranged in the chassis. Therefore, all the beneficial technical effects of the split pedal parking brake system are achieved, which will not be described in detail here.

[0021] Compared with the prior art, the beneficial effects of this application are:

[0022] The split pedal parking brake system provided in the present application is designed as a split structure, with a pedal rocker arm operating mechanism installed in the cab, and a rocker arm transmission mechanism and a pull wire installed in the chassis. Therefore, when the cab is flipped over, there is no need to disassemble the parking brake system, which saves manpower and working hours, greatly improves operating efficiency and convenience of maintenance. Moreover, the system adopts a pedal combined with a rocker arm structure, which is a foot-operated type, thus avoiding the use of a ratchet and a bracket, reducing the occupancy rate of the height space, and helping to reduce the height size of the overall machine appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of an initial state of a split pedal parking brake system provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the structure of a pedal rocker arm operating mechanism provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of the structure of the limiting mechanism provided in the embodiment of the present application;

[0027] Figure 4 A partial structural schematic diagram of a rocker arm transmission mechanism provided in an embodiment of the present application;

[0028] Figure 5 A schematic diagram of another part of the structure of the rocker arm transmission mechanism provided in an embodiment of the present application;

[0029] Figure 6 A schematic diagram of the braking state of a split pedal parking brake system provided in an embodiment of the present application;

[0030] Figure 7 for Figure 6 Schematic diagram of the local enlarged structure.

[0031] Reference numerals:

[0032] 1-pedal rocker type operating mechanism, 11-rotating shaft, 12-pedal connecting member, 13-pedal, 14-driving member, 15-return spring, 16-return spring hanging member, 17-mounting seat, 18-first mounting beam;

[0033] 2- rocker arm transmission mechanism, 21- rotating member, 22- transmission member, 23- force spring, 24- hanging member, 25- U-shaped mounting member, 26- locking member, 27- limiting member, 28- first flat head pin, 29- first pin, 210- first limiting washer, 211- second flat head pin, 212- second pin, 213- second limiting washer, 214- second mounting beam;

[0034] 3-limiting mechanism, 31-pedal locking piece, 311-limiting slot, 32-operating rod, 33-first reset torsion spring, 34-support seat; 4-pull wire. DETAILED DESCRIPTION

[0035] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0036] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0037] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0038] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] Refer to the following Figures 1 to 7 A split pedal parking brake system and agricultural machinery according to some embodiments of the present application are described.

[0041] Embodiment 1

[0042] See also Figure 1 and Figure 2 As shown, an embodiment of the present application provides a split pedal parking brake system, which is applied to agricultural machinery, and the agricultural machinery includes a cab and a chassis, and the cab is installed on the top of the chassis. The split pedal parking brake system includes: a pedal rocker arm operating mechanism 1, a rocker arm transmission mechanism 2 and a pull wire 4;

[0043] Among them, the pedal rocker-arm operating mechanism 1 is installed in the cab; the rocker-arm transmission mechanism 2 and the pull wire 4 are both installed in the chassis; the pedal rocker-arm operating mechanism 1 is used to drive the rocker-arm transmission mechanism 2 to pull the pull wire 4 to achieve braking.

[0044] Based on the structure described above, it can be known that the split pedal parking brake system provided in the present application is designed as a split structure, with the pedal rocker arm operating mechanism 1 installed in the cab, and the rocker arm transmission mechanism 2 and the pull wire 4 installed in the chassis. Therefore, when the cab is flipped over, there is no need to disassemble the parking brake system, which saves manpower and working hours, greatly improves work efficiency and maintenance convenience, and the system adopts a pedal 13 combined with a rocker arm structure, which belongs to a foot-operated braking solution, thus avoiding the use of ratchet and bracket, reducing the occupancy rate of the height space, and helping to reduce the height size of the overall machine appearance.

[0045] Further, preferably, the aforementioned agricultural machinery may be a rice harvester, but of course, it is not limited thereto and may also be other types of agricultural machinery.

[0046] In this embodiment, preferably, Figure 1 and Figure 2 As shown, the pedal rocker type operating mechanism 1 comprises a rotating shaft 11, a pedal connecting member 12, a pedal 13 and a driving member 14; wherein one end of the pedal connecting member 12 is rotatably connected to the cab through the rotating shaft 11, and the other end of the pedal connecting member 12 is fixedly connected to the pedal 13;

[0047] The driving member 14 is fixedly connected to the pedal connecting member 12 and is located between the rotating shaft 11 and the pedal 13; the bottom plate and the chassis of the cab are both provided with a first through hole, and the driving member 14 is movably arranged in the first through hole.

[0048] According to the structure described above, the working process of the pedal rocker type operating mechanism 1 is as follows: when the driver steps on the pedal 13 downward, the pedal connecting member 12 will be forced to drive the driving member 14 to rotate clockwise, and the driving member 14 will push the transmission member 22 described below to move downward, so that the left end of the rotating member 21 drops, and the right end of the rotating member 21 tilts up, thereby forcing the force spring 23 described below to be stretched, thereby providing a certain pulling force to the pull wire 4, and finally realizing the braking operation. It can be seen that the above operation is simple and convenient, and fully utilizes the width space or length space of the cab, reduces the occupancy rate of the height space, and reduces the height of the whole machine.

[0049] Further, preferably, the pedal connector 12 can be fixedly connected to the rotating shaft 11, and the rotating shaft 11 is rotatably connected to the inner wall of the cab, or a sleeve is formed at the end of the pedal connector 12, and the sleeve can be rotatably mounted on the rotating shaft 11, and the rotating shaft 11 is fixedly connected to the inner wall of the cab, and the specific design is based on actual needs.

[0050] Further, preferably, the pedal connector 12 is a long rectangular plate, but is not limited thereto and can be designed according to actual needs.

[0051] Furthermore, preferably, the driving member 14 is a bent member and has a Z-shaped structure, so as to facilitate assembly with the pedal connecting member 12 and the mounting seat 17 .

[0052] Further, preferably, the driving member 14 and the pedal connecting member 12 can be detachably connected by fasteners such as bolts or screws.

[0053] In this embodiment, preferably, Figure 1 and Figure 2 As shown, the pedal rocker arm operating mechanism 1 also includes a return spring 15 and a return spring hanging member 16; wherein, the return spring hanging member 16 is connected to the pedal connecting member 12; one end of the return spring 15 is connected to the return spring hanging member 16, and the other end of the return spring 15 is connected to the cab.

[0054] According to the structure described above, when the brake needs to be released, the return spring 15 has a rebound force, so that the return spring hook 16 drives the pedal connector 12, the transmission member and the pedal 13 to return to their original positions, which is convenient for the next step.

[0055] Further, preferably, the return spring hanging member 16 is provided with a through hole, and one end of the return spring 15 can be hung in the through hole. Of course, it is not limited to this and can be designed according to actual needs.

[0056] Further, preferably, the pedal rocker arm operating mechanism 1 also includes a first mounting beam 18, and the first mounting beam 18 is fixed to the inner wall of the cab, and preferably, the first mounting beam 18 is provided with a mounting hole, and the top end of the return spring hanging member 16 is hung in the mounting hole.

[0057] In this embodiment, preferably, Figure 1 and Figure 2 As shown, the pedal rocker arm operating mechanism 1 also includes a mounting seat 17, which is fixed to the bottom plate of the cab, and the mounting seat 17 is formed with a second through hole, the second through hole is located directly above the first through hole, and the driving member 14 is movably arranged in the second through hole and the first through hole in sequence.

[0058] According to the structure described above, the mounting seat 17 plays a role in guiding the movement of the driving member 14 on the one hand, and can play a certain sealing role on the other hand to prevent the bottom opening from being too large, and preferably, a sealing ring can be compressed between the mounting seat 17 and the bottom of the cab.

[0059] Further, preferably, the mounting seat 17 and the inner wall of the cab can be detachably connected by fasteners such as bolts.

[0060] Further, preferably, the mounting seat 17 is a flat plate structure with through holes, but is not limited thereto.

[0061] In this embodiment, preferably, the pedal rocker arm operating mechanism 1 also includes a limit plate (not shown in the figure), and the limit plate is fixed to the bottom end of the driving member 14 located in the chassis, and a sealing sponge is provided at the top of the limit plate facing the cab.

[0062] According to the structure described above, in the initial state, that is, when the pedal 13 is not stepped on downward, the sealing sponge is pressed against the lower surface of the bottom plate of the cab by the limiting plate, which greatly improves the sealing performance of the cab.

[0063] In this embodiment, preferably, Figure 1 , Figure 3 , Figure 6 and Figure 7 As shown, the split pedal parking brake system further includes a limiting mechanism 3 , and when the pedal 13 of the pedal rocker arm operating mechanism 1 is pressed down to a preset position, the limiting mechanism 3 can limit the pedal 13 .

[0064] According to the structure described above, the limiting mechanism 3 is designed to effectively limit the pedal 13 when the pedal 13 is stepped on to the limit position, thereby avoiding the need to control the pedal 13 by hand to keep it in the stepped state.

[0065] In this embodiment, preferably, Figure 1 , Figure 3 , Figure 6 and Figure 7 As shown, the limiting mechanism 3 includes a pedal locking member 31 and an operating rod 32; wherein the pedal locking member 31 is rotationally connected to the cab; the operating rod 32 is fixedly connected to the pedal locking member 31; the pedal locking member 31 forms a limiting slot 311, and the limiting slot 311 can be clamped on the edge of the pedal 13 to limit the pedal 13.

[0066] According to the structure described above, when the pedal 13 is stepped on to the preset position, the operating rod 32 is pushed by hand, thereby driving the pedal locking member 31 to rotate, so that the limiting slot 311 of the pedal locking member 31 is engaged with the edge of the pedal 13, thereby limiting the position of the pedal 13, so that the pedal 13 is always kept in the stepped state. After the operation is completed, the operating rod 32 can be released without having to push the operating rod 32 all the time;

[0067] When the brake needs to be released, the operating rod 32 can be pushed in the reverse direction by hand again, thereby driving the pedal locking member 31 to rotate in the reverse direction, so that the limiting slot 311 of the pedal locking member 31 is disengaged from the edge of the pedal 13, that is, the restriction on the pedal 13 is released, thereby resetting the pull wire 4.

[0068] In this embodiment, preferably, Figure 6 and Figure 7 As shown, the limiting mechanism 3 also includes a support seat 34 and a first return torsion spring 33; wherein the support seat 34 is fixed to the cab; the pedal locking member 31 is rotatably connected to the support seat 34; one end of the first return torsion spring 33 is connected to the pedal locking member 31, and the other end of the first return torsion spring 33 is connected to the support seat 34.

[0069] According to the structure described above, when the brake needs to be released, the person only needs to hold the operating rod 32 again and push the operating rod 32 in the reverse direction so that the limit slot 311 is disengaged from the edge of the pedal 13, and under the action of the first reset torsion spring 33, the pedal locking member 31 is reset for the next use.

[0070] Further, preferably, one end of the first return torsion spring 33 can be clamped on the support seat 34, and one end of the first return torsion spring 33 is inserted into the mounting hole on the support seat 34. Of course, the mounting method of the first return torsion spring 33 and the support seat 34 is not limited to the above.

[0071] In this embodiment, preferably, Figure 1 and Figure 4 As shown, the rocker arm transmission mechanism 2 includes a rotating component 21, a transmission component 22 and a force spring 23; wherein the rotating component 21 is rotatably connected to the chassis, one side of the rotating component 21 located at the rotation connection point is connected to the transmission component 22, the other side of the rotating component 21 located at the rotation connection point is connected to one end of the force spring 23, and the other end of the force spring 23 is connected to the pull wire 4.

[0072] According to the structure described above, the working process of the pedal rocker arm operating mechanism 1 is as follows: when the driver steps on the pedal 13 downward, the pedal connecting member 12 will be forced to drive the driving member 14 to rotate clockwise, and the driving member 14 will push the transmission member 22 to move downward, causing the left end of the rotating member 21 to drop, and the right end of the rotating member 21 to tilt, thereby forcing the force spring 23 to be stretched, thereby providing a certain pulling force to the pull wire 4, and finally realizing the braking operation. The operation is simple and convenient, and only the rotating member 21 needs to be adjusted to meet different travel, operating force, angle direction and other requirements.

[0073] Further, preferably, the rocker arm transmission mechanism 2 also includes a first flat head pin 28, a first pin 29 and a first limiting washer 210; wherein, the first flat head pin 28 is passed through the rotating component 21, and the first limiting washer 210 is installed at the tail end, the force spring 23 is hung on the first flat head pin 28, and is clamped by the first limiting washer 210 and the rotating component 21, and the first pin 29 is inserted into the tail end of the first flat head pin 28 exposed from the first limiting washer 210, thereby fixing one end of the force spring 23 to the rotating component 21.

[0074] Further, preferably, one side of the rotating member 21 at the rotating connection point is fixedly connected to the transmission member 22, and the other side of the rotating member 21 at the rotating connection point is fixedly connected to one end of the force spring 23. Of course, it is not limited to this and can be set according to actual needs.

[0075] Further, preferably, the force spring 23 is arranged along the height direction of the chassis, and the top end of the force spring 23 is fixedly connected to the rotating member 21, and the bottom end of the force spring 23 is connected to the pull wire 4. Of course, it is not limited to this.

[0076] Further, preferably, the rotating member 21 is a triangular plate, and one of its vertices is connected to the transmission member 22, and the other vertices is connected to one end of the force spring 23, and preferably, its vertex is set downward to save upper space. Of course, it is not limited to this, and the rotating member 21 can also be other shapes, which can be designed according to actual needs.

[0077] Further, preferably, the transmission member 22 may also be fixed to a pin on the rotating member 21 , which may be plugged into the rotating member 21 or welded to the rotating member 21 , and the specific design is based on actual needs.

[0078] Further, preferably, the rocker transmission mechanism 2 further includes a second mounting beam 214 , the second mounting beam 214 is fixed in the chassis, and the rotating component 21 is rotatably connected to the second mounting beam 214 .

[0079] In this embodiment, preferably, Figure 1 and Figure 4 As shown, the rocker transmission mechanism 2 further includes a limiting member 27 , which is fixed to the chassis and extends to the rotating member 21 and between the rotating member 21 and the force spring 23 .

[0080] According to the structure described above, it can be known that the limiting member 27 serves to limit the rotation member 21 to ensure its initial position.

[0081] Further, preferably, the limiting member 27 is an L-shaped rod, a portion of which is located between the rotating member 21 and the force spring 23, and another portion of which extends to the front of the rotating member 21. Of course, the structure of the limiting member 27 is not limited to this, and can also be a straight rod in a straight line, etc., which is specifically designed according to actual needs.

[0082] In this embodiment, preferably, the rocker arm transmission mechanism 2 also includes a second return torsion spring (not shown in the figure), the rotating member 21 is rotatably connected to the shaft fixed on the chassis, and one end of the second return torsion spring is connected to the shaft, and the other end of the second return torsion spring is connected to the rotating member 21.

[0083] According to the structure described above, when the pedal 13 is released and the driving member 14 no longer applies pressure to the transmission member 22, the rotating member 21 is reset under the action of the second reset torsion spring, so as to facilitate the next use.

[0084] In this embodiment, preferably, Figure 5 As shown, the rocker transmission mechanism 2 further includes a hanging member 24, a U-shaped mounting member 25 and a locking member 26; wherein the hanging member 24 is connected to the force spring 23; the U-shaped mounting member 25 is mounted on the edge of the hanging member 24 through an opening and is fixed by the locking member 26;

[0085] The U-shaped mounting member 25 is provided with a mounting through hole, and one end of the pull wire 4 passes through the mounting through hole and extends to the inside of the U-shaped mounting member 25 to form a limited position knot.

[0086] According to the structure described above, the U-shaped mounting member 25 is mounted on the edge of the hanging member 24 and fixed by the locking member 26 , so that the pull wire 4 is fixed on the hanging member 24 .

[0087] Further, preferably, the locking member 26 includes a second flat head pin 211, a second pin 212 and a second limiting washer 213; wherein, the second flat head pin 211 is passed through the two side portions of the U-shaped mounting member 25 and the hanging member 24, and the second limiting washer 213 is installed at the tail end, the second limiting washer 213 abuts against the side of the U-shaped mounting member 25 away from the head of the second flat head pin 211, and the second pin 212 is inserted into the tail end exposed from the second limiting washer 213, thereby fixing the U-shaped mounting member 25 on the hanging member 24.

[0088] It should be noted that: in this solution, since it is adapted to a double-sided reduction gearbox and brakes are performed on one side separately, two U-shaped mounting components 25 and two locking components 26 are used to connect the two pull wires 4. Of course, this is not limited to this. When adapting to different gearboxes, U-shaped mounting components 25 and locking components 26 are configured according to the number of pull wires 4. For example, when it is suitable for a single pull wire 4, only one mounting component 25 and one locking component 26 are required.

[0089] Embodiment 2

[0090] Embodiment 2 of the present application also provides an agricultural machinery, including the split pedal parking brake system described in the above-mentioned embodiment 1, and thus, has all the beneficial technical effects of the split pedal parking brake system, and the same technical features and beneficial effects are not repeated here.

[0091] In this embodiment, preferably, the agricultural machinery also includes a cab and a chassis; wherein the cab is installed on the top of the chassis; the pedal 13 mechanism and the pedal 13 limiting mechanism 3 are both installed in the cab; the rocker arm transmission mechanism 2 and the pull wire 4 are both arranged in the chassis.

[0092] According to the structure described above, the agricultural machinery has a new type of split pedal parking brake system. This brake system is designed as a split structure. The pedal rocker arm operating mechanism 1 is installed in the cab, and the rocker arm transmission mechanism 2 and the pull wire 4 are installed in the chassis. Therefore, when the cab is flipped, there is no need to disassemble the parking brake system, which saves manpower and working hours, greatly improves the working efficiency and the convenience of maintenance. Moreover, the system adopts a pedal 13 combined with a rocker arm structure, which is a foot-operated type, thus avoiding the use of ratchet and bracket, reducing the occupancy rate of the height space, and helping to reduce the height size of the overall machine appearance.

[0093] Furthermore, preferably, the agricultural machinery may be a rice machine, but of course, it is not limited thereto and may be other types of agricultural machinery, etc., which may be selected according to actual needs.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A split pedal parking brake system, applied to agricultural machinery, wherein the agricultural machinery comprises a cab and a chassis, wherein the cab is mounted on the top of the chassis, and wherein: The split pedal parking brake system comprises: a pedal rocker arm operating mechanism, a rocker arm transmission mechanism and a pull wire; Wherein, the pedal rocker-arm operating mechanism is installed in the cab; the rocker-arm transmission mechanism and the pull wire are both installed in the chassis; the pedal rocker-arm operating mechanism is used to drive the rocker-arm transmission mechanism to pull the pull wire to achieve braking.

2. The split pedal parking brake system according to claim 1, characterized in that: The pedal rocker type operating mechanism comprises a rotating shaft, a pedal connecting member, a pedal and a driving member; wherein one end of the pedal connecting member is rotatably connected to the cab through the rotating shaft, and the other end of the pedal connecting member is fixedly connected to the pedal; The driving member is fixedly connected to the pedal connecting member and is located between the rotating shaft and the pedal; the bottom plate of the cab and the chassis are both provided with a first through hole, and the driving member is movably inserted into the first through hole.

3. The split pedal parking brake system according to claim 2, characterized in that: The pedal rocker-arm operating mechanism also includes a return spring and a return spring hanging member; wherein the return spring hanging member is connected to the pedal connecting member; one end of the return spring is connected to the return spring hanging member, and the other end of the return spring is connected to the cab.

4. The split pedal parking brake system according to claim 2, characterized in that: The pedal rocker type operating mechanism further comprises a mounting seat, the mounting seat is fixed to the bottom plate of the cab, and the mounting seat is formed with a second through hole, the second through hole is located directly above the first through hole, and the driving member is movably arranged in the second through hole and the first through hole in sequence; and / or The pedal rocker arm type operating mechanism also includes a limit plate, and the limit plate is fixed to the bottom end of the driving member located in the chassis, and a sealing sponge is arranged on the top end of the limit plate facing the cab.

5. The split pedal parking brake system according to claim 1, characterized in that: The split-type pedal parking brake system further includes a limiting mechanism, and when the pedal of the pedal rocker-arm operating mechanism is pressed down to a preset position, the limiting mechanism can limit the pedal.

6. The split pedal parking brake system according to claim 5, characterized in that: The limiting mechanism includes a pedal locking member and an operating rod; wherein the pedal locking member is rotationally connected to the cab; the operating rod is fixedly connected to the pedal locking member; the pedal locking member forms a limiting slot, and the limiting slot can be clamped on the edge of the pedal to limit the pedal.

7. The split pedal parking brake system according to claim 6, characterized in that: The limiting mechanism also includes a support seat and a first return torsion spring; wherein, the support seat is fixed to the cab; the pedal locking member is rotatably connected to the support seat; one end of the first return torsion spring is connected to the pedal locking member, and the other end of the first return torsion spring is connected to the support seat.

8. The split pedal parking brake system according to any one of claims 1 to 7, characterized in that: The rocker arm transmission mechanism includes a rotating component, a transmission component and a force spring; wherein the rotating component is rotatably connected to the chassis, one side of the rotating component located at the rotating connection point is connected to the transmission component, the other side of the rotating component located at the rotating connection point is connected to one end of the force spring, and the other end of the force spring is connected to the pull wire.

9. The split pedal parking brake system according to claim 8, characterized in that: The rocker transmission mechanism further comprises a hanging member, a U-shaped mounting member and a locking member; wherein the hanging member is connected to the force spring; the U-shaped mounting member is mounted on the edge of the hanging member through an opening and is fixed by the locking member; The U-shaped mounting member is provided with a mounting through hole, and one end of the pull wire passes through the mounting through hole and extends to the inside of the U-shaped mounting member to form a limited position knot; and / or The rocker transmission mechanism further includes a limiting member, the limiting member is fixed to the chassis, and the limiting member extends to the rotating member and between the rotating member and the force spring; and / or The rocker transmission mechanism further includes a second return torsion spring, the rotating member is rotatably connected to a shaft fixed to the chassis, one end of the second return torsion spring is connected to the shaft, and the other end of the second return torsion spring is connected to the rotating member; and / or The rotating member is a triangular plate, one vertex of which is connected to the transmission member, and the other vertex of which is connected to one end of the force spring.

10. An agricultural machine, characterized in that: It comprises a cab, a chassis and a split pedal parking brake system as claimed in any one of claims 1 to 9; wherein the cab is mounted on the top of the chassis; the pedal rocker arm type operating mechanism is installed in the cab; the rocker arm transmission mechanism and the pull wire are both arranged in the chassis.

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