Mechanical speed fixing and parking integrated structure of mowing vehicle

Abstract

The utility model discloses a mowing vehicle mechanical speed fixing and parking integrated structure which comprises a vehicle frame, an advancing and retreating shaft and a brake shaft are rotationally arranged on the vehicle frame, and a toothed plate is fixed to the advancing and retreating shaft; the hook plate rotates on the frame, is driven by a hook plate rod and is used for clamping the toothed plate so as to limit the rotation of the advancing and retreating shaft; the two ends of the reset spring are fixed to the frame and the brake axle respectively, and the reset spring is used for driving the brake axle to return; the brake plate is fixed on the brake shaft and is used for driving the hook plate to lift so as to release the clamping with the toothed plate or is used for abutting against the hook plate; and the advancing and retreating switch pressing plate is fixed on the advancing and retreating shaft, is respectively used for triggering an advancing switch or a retreating switch, and is also connected with a reset pull rod for driving the advancing and retreating shaft to reset.

Description

TECHNICAL FIELD

[0001] The present application relates to the lawn mower technical field, especially to a lawn mower mechanical constant speed and parking integrated structure. BACKGROUND

[0002] The riding lawn mower, also commonly known as the riding lawn mower, is a mechanical equipment specially used for trimming lawns, and has a wide application in garden maintenance, agricultural cultivation, public green maintenance and the like.

[0003] The existing lawn mower parking system and constant speed cruise system often rely on complex electronic components and sensors, which not only increases the manufacturing cost, but also puts forward higher requirements for the stability and reliability of the vehicle. In addition, the electronic system is easily affected by environmental factors, and the structure is relatively complex, which is not conducive to daily maintenance. Moreover, the existing lawn mower using a mechanical parking system needs to additionally provide a constant speed cruise structure to realize the constant speed cruise function, which has a relatively complex structure and operation.

[0004] The above content is only used to assist in understanding the technical solutions of the present application, and does not represent the acknowledgement of the above content as the closest prior art to the present application. SUMMARY

[0005] Therefore, the present application provides a lawn mower mechanical constant speed and parking integrated structure to solve one of the above technical problems.

[0006] The technical scheme adopted by the present application to solve the technical problems is: a lawn mower mechanical constant speed and parking integrated structure, comprising: a vehicle frame, a forward and backward shaft and a brake shaft are rotatably arranged on the vehicle frame, and a tooth plate is fixed on the forward and backward shaft; a hook plate is rotatably arranged on the vehicle frame and is driven by a hook plate rod, and is used for clamping the tooth plate to limit the rotation of the forward and backward shaft; a reset spring is fixed at both ends of the vehicle frame and the brake shaft, and is used for driving the brake shaft to reset; a brake plate is fixed on the brake shaft, and is used for driving the hook plate to lift to release the clamping of the tooth plate or for abutting against the hook plate; a forward and backward switch pressing plate is fixed on the forward and backward shaft, and is used for triggering a forward switch or a backward switch, and the forward and backward switch pressing plate is further connected with a reset pull rod for driving the forward and backward shaft to reset; the following modes are provided: a constant speed cruise mode, the forward and backward shaft is kept in a forward state after rotating, and the tooth plate is clamped by the hook plate; a parking mode, the hook plate is driven to deflect, the brake plate is driven to rotate by the brake shaft, and the reset spring is used to keep the brake plate abutting against the hook plate to limit the reset of the brake shaft.

[0007] In some embodiments, a ratchet portion is formed on the top of the tooth plate, and the ratchet portion is used for cooperating with a pawl portion at one end of the hook plate to lock the position of the forward and backward shaft.

[0008] In some embodiments, the middle part of the hook plate rotates on the vehicle frame, one end of which is the pawl portion, and the other end is fixed with the hook plate rod. When the hook plate rod is raised, the hook plate and the pawl portion rotate downwards, and conversely, when the hook plate rod is pressed, it rotates upwards.

[0009] In some embodiments, a mounting bracket is fixed to the brake shaft, and one end of the return spring is fixed to the mounting bracket.

[0010] In some embodiments, the hook plate protrudes from the side of the brake plate with a limiting side plate.

[0011] In some embodiments, the brake plate has a protruding hook at its end near the forward / reverse axis, the hook being used to hook and lock the limiting side plate to enter the parking mode.

[0012] In some embodiments, the forward switch and the reverse switch are fixed to the vehicle frame, and pressing plates are provided on both sides of the forward and reverse switch pressure plate. The pressing plates are used to trigger the forward switch and the reverse switch when the forward and reverse shaft rotates.

[0013] In some embodiments, the forward / reverse shaft is driven to rotate via a forward pedal and a reverse pedal connected thereto, and the brake shaft is driven to rotate via a brake pedal thereon.

[0014] In some embodiments, the vehicle frame includes a base plate and supports on both sides of the base plate. The base plate has several slots of different sizes. The forward / reverse switch pressure plate, toothed plate and brake plate pass through the slots and can only rotate within the size range of the slots.

[0015] In some embodiments, the slot is formed on the substrate, and the forward / backward shaft and the brake shaft rotate on the bracket.

[0016] The beneficial effects of this application are as follows: The integrated mechanical speed control and parking structure of the lawnmower drives the forward and reverse shafts to rotate forward and reverse through the forward and reverse pedals, respectively. This drives the forward and reverse switch pressure plate on the forward and reverse shafts to trigger the forward or reverse switch, driving the lawnmower forward or backward. At the same time, when cruise control is needed, while maintaining the forward state of the lawnmower, the toothed plate on the forward and reverse shaft cooperates with the hook plate on the frame to lock the state of the forward and reverse shaft, enabling the lawnmower to move forward or backward at a constant speed. Lifting the hook plate upwards can disengage the hook plate from the toothed plate, and the forward and reverse shaft can be reset by the reset lever, thereby canceling the cruise control mode. When parking is needed, the brake pedal must be pressed, and the hook plate must be operated to deflect downwards, so that the brake plate is pressed by the hook plate to lock the position of the brake shaft. The brake pedal is kept pressed to achieve parking. This application integrates the lawnmower's cruise control mode and parking mode into a single system through mechanical components, resulting in a simple structure, high reliability, convenient operation, and significant effects. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0018] Figure 1 is the schematic diagram of explosion of the present application.

[0019] Figure 2 is the schematic diagram of perspective of the present application.

[0020] Figure 3 is the schematic diagram of internal structure of the present application.

[0021] Figure 4 is the schematic diagram of constant speed cruising mode of the present application.

[0022] Figure 5 is the schematic diagram of constant speed cruising mode of the present application from another angle.

[0023] Figure 6 is the schematic diagram of constant speed cruising mode release of the present application.

[0024] Figure 7 is the schematic diagram of constant speed cruising mode release of the present application from another angle.

[0025] Figure 8 is the schematic diagram of parking mode of the present application.

[0026] Figure 9 is the schematic diagram of parking mode of the present application from another angle.

[0027] BRIEF DESCRIPTION OF DRAWINGS: 1, frame, 101, base plate, 102, support, 2, advance and retreat shaft, 3, brake shaft, 4, toothed plate, 401, ratchet part, 5, hook plate, 501, pawl part, 502, limiting side plate, 6, hook plate rod, 7, return spring, 8, brake plate, 801, hook part, 9, advance and retreat switch pressing plate, 901, pressing plate, 10, forward switch, 11, backward switch, 12, return pull rod, 13, mounting frame, 14, forward pedal, 15, backward pedal, 16, brake pedal, 17, slot, 18, extension, 19, torsional spring. DETAILED DESCRIPTION

[0028] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application. In addition, the technical solutions of various embodiments can be combined with each other, but the combination of the technical solutions should be based on the fact that a person of ordinary skill in the art can realize the combination, and when the combination of the technical solutions appears contradictory or unachievable, it should be considered that the combination of the technical solutions does not exist and is not within the protection scope of the present application.

[0029] In the embodiments of the present application, please refer to Figures 1-9 The mechanical constant speed and parking integrated structure of the mower mainly comprises: a vehicle frame 1, a forward and backward shaft 2 and a brake shaft 3 are rotatably arranged on the vehicle frame 1, a toothed plate 4 is fixed on the forward and backward shaft 2; a hook plate 5 is rotatably arranged on the vehicle frame 1 and is driven by a hook plate rod 6, and is used for clamping the toothed plate 4, thereby limiting the rotation of the forward and backward shaft 2; a reset spring 7 is fixed at two ends of the vehicle frame 1 and the brake shaft 3 respectively, and is used for driving the brake shaft 3 to reset; a brake plate 8 is fixed on the brake shaft 3, and is used for driving the hook plate 5 to lift to release the clamping of the toothed plate 4 or for abutting against the hook plate 5; a forward and backward switch pressing plate 9 is fixed on the forward and backward shaft 2, and is used for triggering a forward switch 10 or a backward switch 11 respectively, and the forward and backward switch pressing plate 9 is further connected with a reset pull rod 12 for driving the forward and backward shaft 2 to reset; the following modes are provided: a constant speed cruise mode, the forward and backward shaft 2 is kept in a forward state after rotating, the hook plate 5 clamps the toothed plate 4, the state of the forward and backward shaft 2 is kept, and the forward and backward switch pressing plate 9 keeps triggering the forward switch 10; a parking mode, after the hook plate 5 is driven to deflect, the brake shaft 3 drives the brake plate 8 to rotate, and the reset spring 7 drives the hook plate 5 to deflect downward, so that the brake plate 8 is kept abutting against the hook plate 5, and the reset of the brake shaft 3 is limited.

[0030] The following preferred / improved embodiments based on the above embodiments will be further described. The following embodiments can be selected or combined.

[0031] As shown in Figures 1-2 The top of the toothed plate 4 is formed with a ratchet part 401, the ratchet part 401 is used for cooperating with a pawl part 501 at one end of the hook plate 5 to lock the position of the forward and backward shaft 2, no matter the forward and backward shaft 2 rotates forward or reversely, the pawl part 501 and the ratchet part 401 can cooperate with each other within a certain rotation range of the forward and backward shaft 2 to trigger the forward switch 10 or the backward switch 11, so that the constant speed cruise mode of forward or backward is realized.

[0032] Furthermore, the middle part of the hook plate 5 rotates on the frame 1, one end of which is the pawl part 501, and the other end is fixed with the hook plate rod 6. When the hook plate rod 6 is raised, the hook plate 5 and the pawl part 501 rotate downwards, and conversely, when the hook plate rod 6 is pressed, it rotates upwards. The position of the hook plate 5 is controlled by operating the hook plate rod 6.

[0033] Furthermore, a mounting bracket 13 is fixed on the brake shaft 3, one end of the return spring 7 is fixed on the mounting bracket 13, and both ends of the return spring 7 are fixed on the mounting bracket 13 and the vehicle frame 1 respectively, so as to provide a return force for the brake shaft 3 after it rotates.

[0034] Furthermore, a limiting side plate 502 protrudes from the side of the hook plate 5 near the brake plate 8. The limiting side plate 502 is used to cooperate with the brake plate 8. When the cruise control mode is deactivated, the brake plate 8 disengages the hook plate 5 from the toothed plate 4 by pressing against the limiting side plate 502 upwards. When the parking mode is entered, the limiting side plate 502 is used to press against and limit the position of the brake plate 8.

[0035] Specifically, the brake plate 8 has a protruding hook 801 at its end near the forward / reverse shaft 2. The hook 801 is used to hook and lock the limiting side plate 502 to enter the parking mode.

[0036] Furthermore, the forward switch 10 and the reverse switch 11 are fixed on the frame 1. Press plates 901 are provided on both sides of the forward / reverse switch pressure plate 9. The press plates 901 are used to trigger the forward switch 10 and the reverse switch 11 when the forward / reverse shaft 2 rotates. The forward switch 10 and the reverse switch 11 are used to provide a trigger signal to the lawnmower, ultimately controlling the engine or motor to execute, and ultimately controlling the lawnmower to move forward or backward.

[0037] like Figure 3 As shown, the forward / reverse shaft 2 is driven to rotate via the forward pedal 14 and the reverse pedal 15 connected thereto. The brake shaft 3 is driven to rotate via the brake pedal 16 on it. The middle part of the forward pedal 14 is connected to the forward / reverse shaft 2, and an extension 18 is formed thereon. The reverse pedal 15 is connected to the frame 1. The reverse pedal 15 is hinged to the extension 18 of the forward pedal 14. A torsion spring 19 is provided on the rotating shaft of the reverse pedal 15. Under the action of the torsion spring 19, the reverse pedal 15 and the forward pedal 14 can always automatically reset to the unpedaled state without external interference. At this time, neither the forward switch 10 nor the reverse switch 11 is triggered. When the forward pedal 14 is pressed, the forward / reverse shaft 2 rotates to one side. When the reverse pedal 15 is pressed, the forward / reverse shaft 2 rotates in the opposite direction.

[0038] Furthermore, the frame 1 includes a base plate 101 and brackets 102 on both sides of the base plate 101. The base plate 101 has several slots 17 of different sizes. The forward / reverse switch pressure plate 9, the toothed plate 4 and the brake plate 8 pass through the slots 17 and can only rotate within the size range of the slots 17. The size of the slots 17 limits the operable range of the forward / reverse shaft 2, the brake shaft 3 and other components.

[0039] Specifically, the slot 17 is formed on the base plate 101, and the forward / backward shaft 2 and the brake shaft 3 rotate on the bracket 102.

[0040] like Figures 4-5 As shown, before entering cruise control mode, the forward / reverse shaft 2 is driven by pressing the forward pedal 14. Figure 4 The S3 direction is rotated, which in turn drives the forward / reverse switch pressure plate 9 and the toothed plate 4 to rotate synchronously with the forward / reverse shaft 2. The pressing plate 901 on the forward / reverse switch pressure plate 9 triggers the forward switch 10, and the lawnmower moves forward. Based on this, as Figure 4 Raise the hook rod 6 in the S1 direction so that the hook plate 5 is in the S1 direction. Figure 4 When the S2 direction is rotated, the pawl 501 deflects downward until it contacts the ratchet 401. Then, by pulling the operation reset lever 12, a reset force is provided to the toothed plate 4 on the forward and backward shaft 2. The pawl 501 and the ratchet 401 cooperate to abut against the toothed plate 4, keeping the forward shaft in a forward state and achieving constant speed cruise.

[0041] like Figures 6-7 As shown, when it is necessary to deactivate cruise control mode, press the brake pedal 16 to make the brake shaft 3... Figure 6 Rotating in the S5 direction causes the pawl 501 to disengage from the ratchet 401. Simultaneously, the brake shaft 3 drives the brake plate 8 to abut against the limiting side plate 502, and raises the hook plate 5, driving the hook plate 5 to... Figure 6 Rotate in the S4 direction to completely disengage the hook plate 5 from the toothed plate 4, and then it can be... Figure 6 Pulling the reset lever 12 in the S6 direction resets the gear, driving the forward / reverse shaft 2 and the gear plate 4 to deflect, thus releasing the gear plate 4 and the forward / reverse shaft 2 and deactivating the cruise control mode.

[0042] like Figures 8-9 As shown, before entering parking mode, first press the brake pedal 16 to drive the brake shaft 3. Figure 8 When the brake shaft 3 rotates in the S7 direction, it drives the brake plate 8 to rotate synchronously. Figure 8 In the S8 direction, lift the hook rod 6, hook 5 and so on. Figure 8In the S9 direction, the hook plate rod 6 and the brake pedal 16 are loosened in turn, the hook plate 5 is automatically reset due to gravity, and the brake plate 8 is restored due to the action of the reset spring 7. The hook part 801 on the brake plate 8 cooperates with the limiting side plate 502 on the hook plate 5, and resists the brake plate 8, thereby locking the state of the brake plate 8, and locking the state of the brake shaft 3. The brake pedal 16 remains in the pressed state, and the vehicle is parked.

[0043] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present application, and the foregoing embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can understand that the technical solutions described in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A mower vehicle mechanical constant speed and parking integrated structure, characterized in that, It comprises: a frame, on which a forward-and-backward shaft and a brake shaft are rotatably arranged, the forward-and-backward shaft being fixed with a toothed plate; a hook plate, which is rotatably arranged on the frame and is driven by a hook plate rod, for clamping the toothed plate and thereby limiting the rotation of the forward-and-backward shaft; a return spring, the two ends of which are fixed on the frame and the brake shaft respectively, for driving the brake shaft back to the original position; a brake plate, which is fixed on the brake shaft, for driving the hook plate to lift up and thereby releasing the clamping of the toothed plate or for abutting against the hook plate; a forward-and-backward switch pressing plate, which is fixed on the forward-and-backward shaft, for triggering the forward switch or the backward switch respectively, the forward-and-backward switch pressing plate being further connected with a return pull rod for driving the forward-and-backward shaft back to the original position; the following modes are provided: a constant speed cruise mode, which keeps the forward-and-backward shaft rotating in the forward direction and clamps the toothed plate by the hook plate; a parking mode, which drives the brake plate to rotate by driving the hook plate to deflect, and keeps the brake plate abutting against the hook plate by the return spring, thereby limiting the brake shaft from returning to the original position.

2. The mechanical speed limiting and parking structure of the lawn mower according to claim 1, characterized in that, The top of the toothed plate is formed with a ratchet part, which is used for cooperating with a pawl part at one end of the hook plate to lock the position of the forward-and-backward shaft.

3. The mechanical speed limiting and parking structure of the lawn mower according to claim 2, characterized in that, The middle part of the hook plate is rotatably arranged on the frame, one end of which is the pawl part and the other end of which is fixed with the hook plate rod, lifting the hook plate rod makes the hook plate and the pawl part rotate downward, and vice versa, pressing the hook plate rod makes the hook plate and the pawl part rotate upward.

4. The mechanical speed limiting and parking structure of the lawn mower according to claim 1, characterized in that, The brake shaft is fixed with a mounting frame, one end of the return spring is fixed on the mounting frame.

5. The mechanical speed limiting and parking structure of the lawn mower according to claim 1, characterized in that, The side of the hook plate close to the brake plate is protruded with a limiting side plate.

6. The mechanical speed limiting and parking structure of the mower according to claim 5, characterized in that, The end of the brake plate close to the forward-and-backward shaft is formed with a protruding hook part, which is used for hooking and locking the limiting side plate, so as to enter the parking mode.

7. The mechanical speed limiting and parking structure of the lawn mower according to claim 1, characterized in that, The forward switch and the backward switch are fixed on the frame, the forward-and-backward switch pressing plate is provided with pressing plates on both sides, which are used for triggering the forward switch and the backward switch when the forward-and-backward shaft rotates.

8. The mechanical speed limiting and parking structure of the lawn mower according to claim 1, characterized in that, The forward-and-backward shaft is driven to rotate by the forward pedal and the backward pedal connected therewith, and the brake shaft is driven to rotate by the brake pedal thereon.

9. The mechanical speed limiting and parking structure of the lawn mower according to claim 1, characterized in that, The frame comprises a base plate and supports on both sides of the base plate, the base plate is provided with a plurality of slots of different sizes, the forward-and-backward switch pressing plate, the toothed plate and the brake plate pass through the slots and can only rotate within the size range of the slots.

10. The mechanical speed limiting and parking structure of the lawn mower according to claim 9, characterized in that, The slots are arranged on the base plate, and the forward-and-backward shaft and the brake shaft rotate on the supports.

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