A linkage control device and control method for a standing self-propelled device

Abstract

The present invention provides a linkage control device and control method for a standing self-propelled device, wherein the linkage control device includes a travel drive rod and a function drive rod that are independently and rotatably mounted in a device frame, a linkage mechanism is provided between the travel drive rod and the function drive rod, and the linkage mechanism includes a slide bar seat and an articulated bracket mounted in the device frame, a slide bar is slidably mounted in the slide bar seat, a linkage block is hingedly mounted on the articulated bracket, and a linkage slot is provided on the linkage block; one end of the slide bar is hooked on a side of the linkage block away from the hinge, and the other end is connected to the travel drive rod. The present invention realizes the linkage operation of the function drive rod and the travel drive rod through the linkage mechanism, and can also manually control the function drive rod to release the linkage operation with the travel drive rod; in the event of an emergency, the external force applied to the travel drive rod can be immediately removed, so that the function drive rod and the travel drive rod can be released from linkage and reset at the same time, making it safe and reliable to use.

Description

Technical Field

[0001] The present invention relates to the technical field of standing self-propelled equipment, and in particular to a linkage control device and a control method for standing self-propelled equipment. Background Art

[0002] A stand-on snowplow is a self-propelled machine operated by a standing operator standing on the rear pedals. The snowplow features steering, sweeping, and snow throwing functions. The snowplow's snow collection function is achieved through the auger at the front of the snowplow, all controlled by the operator at the control console.

[0003] On March 25, 2022, the applicant applied for a Chinese utility model patent numbered "202220674192.4," entitled "An Operating Panel Structure for a Stand-Up Snowplow." The patent specifically includes a panel housing and a control lever assembly. The panel housing is positioned above the snowplow. The control lever assemblies are positioned on both sides of the upper end of the panel housing to control the rotation of the snowplow's wheels. The control lever assembly includes a left control lever and a right control lever. The left control lever is connected to control the snowplow's left tire, and the right control lever is connected to control the snowplow's right tire. The left control lever of the control lever assembly can only control the movement of the snowplow and cannot achieve the purpose of synchronously controlling the rotation of the snowplow auger.

[0004] Therefore, based on the above-mentioned stand-up snowplow, a linkage control device can be developed, which can control the operation of the snowplow auger control lever in a linkage manner, and can also operate the snowplow auger control lever alone to release the linkage state; releasing the left control lever can synchronously reset the snowplow auger control lever. Summary of the Invention

[0005] (1) Technical issues to be resolved

[0006] The problem to be solved by the present invention is to provide a linkage control device and control method for a standing self-propelled device, so that the travel drive rod and the function drive rod have the function of linkage operation through a linkage mechanism. By loosening the travel drive rod, the two can be decoupled and the device can be stopped. The function drive rod and the travel drive rod can also be manually controlled to decouple.

[0007] (2) Technical solution

[0008] In order to solve the technical problem, the present invention provides a linkage control device and control method for a stand-up self-propelled equipment, which can be applied to snowplow products. The linkage control device includes a travel drive rod and a function drive rod independently and rotatably installed in the equipment frame, and a linkage mechanism is arranged between the travel drive rod and the function drive rod. The linkage mechanism includes a slide bar seat and an articulated bracket installed in the equipment frame, a slide bar is slidably installed in the slide bar seat, a linkage block is hingedly installed on the articulated bracket, and a linkage slot is provided on the linkage block; one end of the slide bar is hooked on the side of the linkage block away from the hinge, and the other end is connected to the travel drive rod; when the travel drive rod and the function drive rod are operated in linkage, a driving force is applied to the travel drive rod to drive the slide bar and the linkage block to move toward one side of the function drive rod, and then push the function drive rod to make it stuck in the linkage slot to realize the linkage between the two. The main purpose of this device is that on the one hand, it can make the travel drive rod and the function drive rod work synchronously through the linkage mechanism, and can also manually control the function drive rod and the travel drive rod to release the linkage state; on the other hand, in an emergency, loosening the travel drive rod can ensure that the travel drive rod and the function drive rod can be reset, which is safe and reliable to use.

[0009] Furthermore, a reset spring is installed on the linkage block, one end of which is hooked on the hinged bracket. After the force applied to the travel drive rod is removed, the linkage block is reset to disengage the function drive rod from the linkage slot.

[0010] Furthermore, the lower end of the travel drive rod is hinged on the gear seat, and the gear seat is fixed on the gear rotation axis 1 in the equipment frame. A safety switch with a spring is installed on the gear seat. Only when the travel drive rod is pressed down to trigger the safety switch can the self-propelled equipment move without stalling; the gear seat is provided with a limit rod.

[0011] Furthermore, the linkage block is L-shaped as a whole, with a guide flange provided on its inner side, and the linkage slot is formed on the upper end of the guide flange; the guide flange is triangular in shape, and the upper end edge is tilted downward.

[0012] Furthermore, the slide rod seat is fixed on the hinged bracket, a hinge hole is provided at one end of the linkage block, and a guide groove is formed at the other end for cooperating with the sliding shaft of the slide rod, and a hook hole is provided on the linkage block for hooking the reset spring.

[0013] Furthermore, the sliding rod includes two guide rod bodies, and a connecting rod in contact with the travel driving rod is formed between the two guide rod bodies.

[0014] Furthermore, the articulated bracket is provided with a gear slot for accommodating the functional driving lever, and a "7"-shaped slot is formed between the guide flange and the gear slot during linkage operation.

[0015] Furthermore, the functional driving rod can also manually release the linkage work, and the lower end of the functional driving rod forms a driving plate, and a bracket plate is installed on one side of the driving plate, and the bracket plate is fixed on the gear rotation shaft 2 in the equipment frame, and a spring is installed between the driving plate and the second axial end of the gear rotation shaft; when the functional driving rod needs to be manually disengaged from the linkage slot, the functional driving rod is pushed along the axial direction of the gear rotation shaft 2, so that the driving plate is deflected with the upper end of the bracket plate as the fulcrum, so that the functional driving rod is disengaged from the linkage slot.

[0016] Furthermore, the present technical solution also provides a control method for a linkage control device of a standing self-propelled device, comprising the following steps: step S001, starting the device; step S002, preparing for linkage operation; pressing down the travel drive rod, and driving the linkage slot of the linkage block to move toward the side of the function drive rod through the sliding rod of the linkage mechanism; step S003, the function drive rod is linked and engaged with the travel drive rod; the function drive rod is pushed forward so that the function drive rod is engaged and positioned on the linkage slot, completing the linkage engagement operation; wherein when the linkage is manually released: manually pushing the function drive rod to disengage from the linkage slot, the function drive rod is reset and released from the linkage with the travel drive rod (at this time, the travel drive rod is always in a pressed-down state); wherein when shutting down in an emergency; releasing the external force applied to the travel drive rod, the travel drive rod is reset upward, so that the linkage block returns to its original position, so that the linkage slot is disengaged from the function drive rod, and the function drive rod is reset.

[0017] Furthermore, in step S002, the linkage block is hinged on the hinged bracket, and the slide rod pushes the linkage block to rotate, so that the linkage slot enters above the gear slot of the hinged bracket. At this time, the linkage slot is located in front of the function drive rod.

[0018] Furthermore, in the manual release of linkage, the function drive rod is deflected toward the axial direction of the gear rotation axis 2 with the upper end of the bracket plate as a fulcrum, so that the function drive rod is manually disengaged from the gear slot.

[0019] (3) Beneficial effects

[0020] The present invention provides a linkage control device and control method for a standing self-propelled equipment. On the one hand, the linkage mechanism can realize the linkage operation of the function drive rod and the travel drive rod, and the function drive rod can also be manually toggled to release the linkage working state with the travel drive rod; on the other hand, in an emergency, the external force applied to the travel drive rod can be immediately removed, so that the function drive rod and the travel drive rod can be released from linkage and reset at the same time; when applied to a snowplow, the snowplow stops moving and the snowplow auger stops working when the travel drive rod is released to release the linkage, which is safe and reliable to use. When the two work in linkage, the snowplow moves forward and the snowplow auger rotates; through the drive plate, drive, bracket plate and spring at the lower end of the travel drive rod, the travel drive rod can be deflected at the upper end edge of the bracket plate, and manual release of linkage can be achieved through this structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of a self-propelled device according to the present invention;

[0022] Figure 2 This is a perspective view of the present invention after being installed on an equipment rack;

[0023] Figure 3 A perspective view of the present invention;

[0024] Figure 4 This is a three-dimensional diagram of the present invention when working in linkage;

[0025] Figure 5 A perspective view of a travel drive rod according to the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the functional driving lever of the present invention when it is in two gear positions;

[0027] Figure 7 A three-dimensional diagram of the linkage block of the present invention;

[0028] Figure 8 A three-dimensional diagram of the linkage mechanism of the present invention;

[0029] Figure 9 An exploded view of the linkage mechanism of the present invention;

[0030] Figure 10 is a three-dimensional diagram of the hinged bracket of the present invention;

[0031] Figure 11 A perspective view of the functional driving rod portion of the present invention;

[0032] Figure 12 A three-dimensional diagram of the functional driving rod portion of the present invention from another viewing direction;

[0033] Figure 13 An exploded view of the functional driving rod portion of the present invention;

[0034] 1. The names of the components corresponding to the various reference numerals in the figure are: 1. Equipment frame; 2. Travel drive rod; 3. Function drive rod; 4. Linkage mechanism; 5. Slide rod seat; 6. Articulated bracket; 7. Slide rod; 8. Linkage block; 9. Linkage slot; 10. Return spring; 11. Gear seat; 12. Gear rotation axis 1; 13. Safety switch; 14. Limit rod; 15. Guide flange; 16. Hinge hole; 17. Slide shaft; 18. Guide groove; 19. Hook hole; 20. Guide rod body; 21. Connecting rod; 22. Guide hole 1; 23. Guide hole 2; 24. Gear slot; 25. Drive plate; 26. Bracket plate; 27. Gear rotation axis 2; 28. Spring; 29. ​​Upper end edge; 30. Spring placement cavity; 31. Guide pin; 32. Waist-shaped groove; 33. Handbrake. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0036] See Figures 1 to 13 The present invention provides a linkage control device for a stand-up self-propelled device, which can be applied to snowplow equipment; its linkage control device includes a travel drive rod 2 and a function drive rod 3 independently and rotatably mounted in the equipment frame 1, and a linkage mechanism 4 is arranged between the travel drive rod 2 and the function drive rod 3. The linkage mechanism 4 includes a slide bar seat 5 and an articulated bracket 6 installed in the equipment frame 1, a slide bar 7 is slidably mounted in the slide bar seat 5, and a linkage block 8 is hingedly mounted on the articulated bracket 6, and a linkage slot 9 is provided on the linkage block 8; one end of the slide bar 7 is hooked on the side of the linkage block 8 away from the hinge, and the other end is connected to the travel drive rod 2; when the travel drive rod 2 and the function drive rod 3 are operated in linkage, a driving force is applied to the travel drive rod 2, driving the slide bar 7 and the linkage block 8 to move toward one side of the function drive rod 3, and then pushing the function drive rod 3 to make it stuck in the linkage slot 9 to realize the linkage between the two.

[0037] See Figure 1The standing self-propelled device of this embodiment is a snowplow. The travel drive rod 2 is used to control the movement of the snowplow, and the function drive rod 3 is used to control the operation of the snowplow's snow auger. The usage scenario of this embodiment is that the operator stands on the pedal of the snowplow, and the operator needs to apply an external force to the travel drive rod 2 at all times (the external force in this embodiment is a downward pressure) to make the snowplow move. If the external force is removed, the machine will stop moving. Based on the above usage scenario, through the linkage mechanism of this embodiment, on the one hand, the function drive rod 3 can be linked with the travel drive rod 2 to work, and the function drive rod 3 can be manually controlled to release the linkage with the travel drive rod 2; on the other hand, in case of emergency, the external force applied to the travel drive rod 2 can be immediately removed, and the function drive rod 3 can be released from the linkage with the travel drive rod 2 to reset, so that the snowplow stops moving and the snowplow's snow auger stops rotating.

[0038] See Figure 3 、 Figure 8 and Figure 9 A reset spring 10 is installed on the linkage block 8, and one end of the reset spring 10 is hooked on the hinged bracket 6. After the force applied to the travel drive rod 2 is removed, the linkage block 8 is reset to disengage the functional drive rod 3 from the linkage slot 9.

[0039] See Figure 3-Figure 5 The lower end of the travel drive rod 2 is hinged on the gear seat 11, and the gear seat 11 is fixed on the gear rotation axis 12 in the equipment frame 1. A safety switch 13 with a spring is installed on the gear seat 11. In this embodiment, the self-propelled device can move without stalling only after the travel drive rod 2 is pressed down to trigger the safety switch 13; the gear seat 11 is provided with a limit rod 14.

[0040] See Figure 6 and Figure 7 The linkage block 8 is L-shaped as a whole, with a guide flange 15 provided on its inner side, and a linkage slot 9 formed on the upper end of the guide flange 15. The guide flange 15 is triangular in shape, with its upper edge tilted downward, and its tilt angle is small, which facilitates the functional driving rod 3 to disengage from the linkage slot 9. Among them, the slide rod seat 5 is fixed on the hinge bracket 6, see Figure 7 The linkage block 8 has a hinge hole 16 at one end and a guide groove 18 at the other end for cooperating with the slide shaft 17 of the slide rod 7. Figure 6 and Figure 9 The guide groove 18 is waist-shaped, and the linkage block 8 is provided with a hook hole 19 for hooking the reset spring 10.

[0041] See Figure 8 and Figure 9The slide rod 7 includes two guide rod bodies 20. The two guide rod bodies 20 are provided to ensure smooth sliding of the slide rod 7. A connecting rod 21 in contact with the travel drive rod 2 is formed between the two guide rod bodies 20. The slide rod seat 5 is correspondingly provided with a guide hole 1 22 and a guide hole 23 that cooperate with the two guide rod bodies 20. The guide hole 23 is a U-shaped opening.

[0042] See Figure 6 and Figure 10 The hinged bracket 6 is provided with a gear slot 24 for placing the functional driving lever 3. During the linkage operation, a "7"-shaped slot is formed between the guide flange 15 and the gear slot 24. Figure 6 At the same time, two gear positions of the function driving lever 3 are shown, and the function driving lever 3 is represented by a double-dotted line in the figure. Figure 10 A spring placement cavity 30 for placing the return spring 10 is provided on the hinged bracket 6.

[0043] See Figure 11-13 The lower end of the functional driving rod 3 forms a driving plate 25, and a bracket piece 26 is mounted on one side of the driving plate 25. The bracket piece 26 is fixed on the gear rotation shaft 27 in the equipment frame 1. The driving plate 25 of the functional driving rod 3 is slidably installed on the gear rotation shaft 27; a spring 28 is installed between the driving plate 25 and the shaft end of the gear rotation shaft 27. The spring 28 always pushes the driving plate 25 to rest against the bracket piece 26, which is used to straighten the driving plate 25 so that it does not deflect under normal conditions; when it is necessary to manually disengage the functional driving rod 3 from the linkage slot 9, push the functional driving rod 3 along the direction of the gear rotation shaft 27, so that the driving plate 25 deflects with the upper end 29 of the bracket piece 26 as the fulcrum, so that the functional driving rod 3 disengages from the linkage slot 9. Figure 13 The drive plate 25 is slidably mounted on the guide pin 31 of the bracket piece 26. The matching groove of the drive plate 25 that cooperates with the guide pin 31 is waist-shaped. The bracket piece 26 is provided with a waist-shaped groove 32 connected to the gear rotation axis 27, so that the drive plate 25 can deflect with the upper end edge 29 of the bracket piece 26 as the fulcrum.

[0044] Based on the above-mentioned control device, this embodiment also provides a control method for the linkage control device of a standing self-propelled device, including the following steps: step S001, the device is turned on; step S002, the linkage operation is prepared; the travel drive rod 2 is pressed down, and the linkage slot 9 of the linkage block 8 is driven to move toward the side of the function drive rod 3 through the slide rod 7 of the linkage mechanism 4; step S003, the function drive rod is linked and engaged with the travel drive rod; the function drive rod 3 is pushed forward so that the function drive rod 3 is engaged and positioned on the linkage slot 9, completing the linkage engagement operation; when the linkage is manually released, the function drive rod 3 is manually pushed to disengage from the linkage slot 9, and the function drive rod 3 is reset and released from the linkage with the travel drive rod 2; when the device is shut down in an emergency, the external force applied to the travel drive rod 2 is released, the travel drive rod 2 is reset upward, so that the linkage block 8 is reset back and forth, so that the linkage slot 9 is disengaged from the function drive rod 3, and the function drive rod 3 is reset.

[0045] In step S002, linkage block 8 is hinged to hinge bracket 6, and slide bar 7 drives linkage block 8 to rotate, causing linkage slot 9 to enter above shift slot 24 of hinge bracket 6. At this point, linkage slot 9 is located in front of function drive lever 3. A support plate 26 is mounted on one side of the drive plate 25 at the lower end of function drive lever 3. To manually release the linkage, the function drive lever 3 is deflected toward the axial direction of the second shift rotation axis 27, using the upper edge 29 of support plate 26 as a fulcrum, manually disengaging the function drive lever 3 from the shift slot 24.

[0046] Among them, between step S002 and step S003, the handbrake 33 needs to be released; the snow blower of this embodiment needs to first press down the travel drive rod 2 so that the travel drive rod 2 triggers the safety switch 13 before releasing the handbrake 33 for subsequent operations (the travel drive rod 2 needs to be in a pressed state at all times during operation). In the above steps, the operator steps on the pedal of the snow blower (see Figure 1 ) is operated on.

[0047] The linkage mechanism of the present invention drives the linkage block 8 to rotate via the slide bar 7, so that the linkage slot 9 of the linkage block 8 is located in front of the function drive rod 3. At this time, the function drive rod 3 can be manually pushed to realize the linkage between the function drive rod 3 and the travel drive rod 2. That is, the linkage operation of the function drive rod 3 and the travel drive rod 2 can be realized by one hand (pressing the travel drive rod 2 with one hand); in addition, in an emergency, the external force applied to the travel drive rod 2 can be immediately removed, and the function drive rod 3 can be simultaneously released from the linkage and reset, so that the snow plowing auger of the snowplow of this embodiment stops working. The linkage control device of this embodiment can be used in snowplow products and can also be applied to standing-operated equipment such as snowplows, lawn mowers, and sweepers.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A linkage control device for a standing self-propelled device, comprising a travel drive rod (2) and a function drive rod (3) independently and rotatably mounted in a device frame (1), characterized in that: A linkage mechanism (4) is provided between the travel drive rod (2) and the functional drive rod (3), and the linkage mechanism (4) comprises a slide rod seat (5) and an articulated bracket (6) installed in the equipment frame (1); a slide rod (7) is slidably installed in the slide rod seat (5), a linkage block (8) is hingedly installed on the articulated bracket (6), and a linkage slot (9) is provided on the linkage block (8); one end of the slide rod (7) is hooked on a side of the linkage block (8) away from the hinge, and the other end thereof is connected to the travel drive rod (2); The linkage block (8) is L-shaped as a whole, and a guide flange (15) is provided on its inner side. The linkage slot (9) is formed on the upper end of the guide flange (15). The hinge bracket (6) is provided with a gear slot (24) for accommodating the functional drive rod (3). During the linkage operation, a "7"-shaped slot is formed between the guide flange (15) and the gear slot (24); a drive plate (25) is formed at the lower end of the functional drive rod (3), and a bracket plate (26) is sleeved on one side of the drive plate (25). The bracket plate (26) is fixed on the gear rotation shaft 2 (27) in the equipment frame (1), and a spring (28) is installed between the drive plate (25) and the shaft end of the gear rotation shaft 2 (27); During linkage operation, a driving force is applied to the travel drive rod (2), driving the slide rod (7) and the linkage block (8) to move toward one side of the function drive rod (3), and then the function drive rod (3) is pushed to be clamped into the linkage clamping slot (9) to realize linkage between the two; when it is necessary to manually disengage the function drive rod (3) from the linkage clamping slot (9), the function drive rod (3) is pushed along the axial direction of the gear rotation axis (27) so that the drive plate (25) is connected to the bracket plate The upper edge (29) of (26) is deflected as a fulcrum, so that the functional drive rod (3) is disengaged from the linkage slot (9); when the machine is shut down in an emergency, the external force applied to the travel drive rod (2) is released, and the travel drive rod (2) is reset upward, so that the linkage block (8) is reset back and forth, so that the linkage slot (9) is disengaged from the functional drive rod (3), and the functional drive rod (3) is reset; the guide flange (15) is triangular in shape, and its upper edge is tilted downward.

2. The linkage control device for a standing self-propelled vehicle according to claim 1, wherein: A return spring (10) is installed on the linkage block (8), and one end of the return spring (10) is hooked on the hinged bracket (6).

3. The linkage control device for a standing self-propelled vehicle according to claim 2, wherein: The slide rod seat (5) is fixed on the hinge bracket (6), one end of the linkage block (8) is provided with a hinge hole (16), and the other end is formed with a guide groove (18) for cooperating with the slide shaft (17) of the slide rod (7), and the linkage block (8) is provided with a hook hole (19) for hooking the return spring (10).

4. The linkage control device for a standing self-propelled vehicle according to claim 1, wherein: The sliding rod (7) comprises two guide rod bodies (20), and a connecting rod (21) in contact with the travel drive rod (2) is formed between the two guide rod bodies (20).

5. A control method for a linkage control device of a standing self-propelled vehicle, implemented based on the linkage control device of the standing self-propelled vehicle according to claim 1, characterized in that: The steps include: Step S001, the device is powered on; Step S002, linkage operation preparation; pressing down the travel drive rod (2), and driving the linkage slot (9) of the linkage block (8) to move toward the side of the functional drive rod (3) through the slide rod (7) of the linkage mechanism (4); Step S003, the function drive rod is linked and engaged with the travel drive rod; the function drive rod (3) is moved forward so that the function drive rod (3) is engaged and positioned on the linkage slot (9), completing the linkage engagement operation; When the linkage is manually released: the function drive rod (3) is manually moved to disengage from the linkage slot (9), and the function drive rod (3) is reset and released from the linkage with the travel drive rod (2); When the machine is shut down in an emergency, the external force applied to the travel drive rod (2) is released, and the travel drive rod (2) is reset upward, so that the linkage block (8) is reset back and forth, so that the linkage slot (9) is disengaged from the functional drive rod (3), and the functional drive rod (3) is reset.

6. The control method of the linkage control device of the standing self-propelled device according to claim 5, characterized in that: In the step S002, the linkage block (8) is hinged on the hinge bracket (6), and the slide bar (7) pushes the linkage block (8) to rotate, so that the linkage slot (9) enters above the gear slot (24) of the hinge bracket (6). At this time, the linkage slot (9) is located in front of the function drive rod (3); in the manual release of the linkage, the function drive rod (3) is deflected toward the axial direction of the gear rotation axis (27) with the upper end (29) of the bracket plate (26) as a fulcrum, so that the function drive rod (3) is manually disengaged from the gear slot (24).

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