Standing control type lawn vehicle

Abstract

A left drive axle and a right drive axle are arranged on the two sides of the rear end of a rack, control handles are arranged on the front portions and the rear portions of the left side and the right side of a fixed cross rod on the upper portion of the rear side of the rack respectively, the lower ends of the control handles on the left side and the right side are connected with corresponding first rocker arms respectively, and locking grooves are formed in the upper edges of the first rocker arms. The front end of the rocker arm I is hinged with a connecting rod I; the upper end of the second rocker arm is connected with a first tension spring, and the lower end of the first tension spring is connected with a drive mechanism of a drive axle brake arm. The upper end of the push rod is inserted into a notch in the rear end of the warping plate, and the lower end of the push rod is connected with the rear end of the warping plate through a second tension spring; warped plate protruding teeth are arranged on the left side and the right side of the warped plate respectively, and when the brake handle is located at the brake position, the warped plate protruding teeth are embedded into the locking grooves of the first rocker arm. According to the lawn vehicle, the control handle can be locked in the parking state, and safety and reliability are good.

Description

Technical Field

[0001] This utility model relates to a lawn cart, and more particularly to a standing-operated lawn cart, in the field of garden machinery technology. Background Technology

[0002] The global market for gasoline-powered lawnmowers has entered a phase of competition for existing market share. In the short term, their high power and long range make them irreplaceable in the commercial sector.

[0003] Currently, common zero-turn hydraulically driven lawn mowers have a large axial dimension, requiring operators to sit on the vehicle to work. However, these ride-on lawn mowers have several drawbacks: First, their large length results in insufficient maneuverability in smaller areas and confined spaces, making precise control difficult and unable to meet the mowing needs of special areas such as small gardens and narrow passageways; second, operation is relatively complex, requiring professional operators to undergo training to master the skills, increasing labor costs and the barrier to entry, and the complexity of operation may also lead to misoperation and safety hazards; third, to ensure safety, dedicated safety seats and rollover protection bars (ROPS) must be installed, making the machine heavy, which not only affects the lawn mower's maneuverability but also increases transportation costs, and places certain requirements on the ground's load-bearing capacity during operation, limiting its application scenarios; in addition, due to their large weight, energy consumption is higher for the same area, resulting in higher direct energy consumption costs per shift and increased maintenance and operating costs in the long run.

[0004] The rear-mounted, stand-operated lawnmower significantly reduces vehicle length, weight, and cost, making it easier for operators to get in and out and allowing for quick escape in emergencies. In municipal, landscaping, grassland, and aviation sectors, targeting professional clients such as municipal landscaping departments, airports, golf courses, professional landscaping maintenance companies, and turf growers, the rear-mounted, stand-operated lawnmower offers a more compact structure and easier operation compared to traditional seated lawnmowers, making it more suitable for mechanized lawn mowing operations in smaller areas and confined spaces. The reduced overall weight can save approximately 100 yuan in direct energy consumption per shift for the same area worked.

[0005] While existing stand-up lawnmowers with rear steps have improved upon issues related to vehicle length, weight, and cost to some extent, they still have some drawbacks. For example, the brake lever and control lever cannot interlock. If the control lever is not effectively locked while the vehicle is parked, the vehicle may move due to accidental operation, causing an accidental collision or other dangerous situation. Furthermore, if the parking brake is applied before the control lever has returned to the neutral parking position while the vehicle is moving, it will damage the expensive hydraulic drive axle. Improper operation not only reduces safety but also increases maintenance costs and affects the reliability and efficiency of the work. Utility Model Content

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0007] In view of the problems existing in the above and / or prior art, this utility model is proposed.

[0008] To overcome the shortcomings of existing technologies, this utility model proposes a standing-operated lawn cart, which can lock the control handle of the walking mechanism when parked, reducing safety hazards and improving the safety and reliability of the lawn cart.

[0009] To solve the above technical problems, this utility model provides a standing-operated lawn mower, including a frame, an engine mounted on the upper middle part of the frame, a cutter head located on the lower front end of the frame, a left drive axle and a right drive axle respectively controlled by a drive axle control arm on both sides of the rear end of the frame, a fixed crossbar mounted on the upper rear side of the frame, and operating handles located on the left front, left rear, right front, and right rear of the fixed crossbar, respectively. The lower ends of the left and right operating handles are respectively connected to the corresponding rocker arms. The upper edge of the rocker arms has a locking groove, and the front end of the rocker arms is hinged. A connecting rod is connected, with its lower end hinged to the corresponding drive axle control arm; the lower end of the brake handle is connected to a rocker arm two via a spindle two, and a tension spring one is connected to the upper end of the rocker arm two, with the lower end of the tension spring one connected to the drive mechanism of the drive axle brake arm; the lower end of the rocker arm two is hinged to the lower end of a push rod, the upper end of the push rod is inserted into the rear end slot of the rocker plate, and the lower end of the push rod is connected to the rear end of the rocker plate via the tension spring two; the left and right sides of the rocker plate are respectively provided with rocker plate protruding teeth, and when the brake handle is in the braking position, the rocker plate protruding teeth are embedded in the locking groove of the rocker arm one.

[0010] As an improvement of this utility model, a brake pivot is hinged to the rear end of the frame, and two pivot arms are fixed to the two ends of the brake pivot. A pivot arm is provided on the outer side of one of the pivot arms. A connecting rod is connected to the lower end of the tension spring, and the lower end of the connecting rod is hinged to the free end of the pivot arm. The free ends of the two pivot arms are respectively hinged to the connecting rods, and the lower ends of the connecting rods are respectively hinged to the free ends of the drive axle brake arms.

[0011] As a further improvement of this utility model, the rocker is hinged to the frame on both sides by a spindle, and a push rod protrusion is provided on the rear side of the push rod; when the brake handle is unlocked, the rocker arm drives the push rod to rise, and the push rod protrusion pushes the rear side of the rocker upward, so that the protruding teeth of the rocker disengage from the locking groove of the rocker arm.

[0012] As a further improvement of this utility model, the upper end of the rocker arm two is hinged to a connecting rod four, and the lower end of the connecting rod four is connected to the upper end of the tension spring one.

[0013] As a further improvement of this utility model, an engine pulley is installed at the lower end of the output shaft of the engine, a left drive axle pulley is provided at the input end of the left drive axle, and a right drive axle pulley is provided at the input end of the right drive axle; the engine pulley is connected to the left drive axle pulley and the right drive axle pulley via a belt.

[0014] As a further improvement of this utility model, an engine pulley 2 is also installed at the lower end of the output shaft of the engine, and multiple blades are provided below the cutter head. Each blade has a blade pulley installed at the upper end of its cutter shaft. The engine pulley 2 is connected to each blade pulley via a belt 2.

[0015] As a further improvement of this utility model, blade one, blade two and blade three are provided below the cutter head. Blade one is installed on the upper end of the cutter shaft of blade one, blade two is installed on the upper end of the cutter shaft of blade two, and blade three is installed on the upper end of the cutter shaft of blade three. The engine pulley two is connected to blade pulley one, blade pulley two and blade pulley three through belt two.

[0016] As a further improvement of this utility model, a tensioning wheel is provided on the outer side of the belt, the tensioning wheel is installed at one end of the tensioning arm, the tensioning arm is hinged to the frame by a spindle, and the other end of the tensioning arm is connected to the frame by a tension spring.

[0017] As a further improvement of this utility model, an idler wheel is provided between the first blade pulley and the second blade pulley; a tensioning wheel is also provided on the outer side of the second belt, the tensioning wheel is installed at one end of the tensioning arm, the tensioning arm is hinged to the frame by a spindle four, and the other end of the tensioning arm is connected to the frame by a tension spring four.

[0018] As a further improvement of this utility model, the second engine pulley is connected to the first engine pulley via a clutch and is located below the first engine pulley.

[0019] Compared with existing technologies, the standing-operated lawn mower of this invention has significant technical advantages and practical value, specifically reflected in the following aspects: Through the interlocking mechanism between the operating handle and the parking brake handle, as well as the optimized transmission system, it not only improves the safety and reliability of operation and reduces the weight and cost of the whole machine, but also has the advantages of compact structure and convenient operation. It is particularly suitable for mechanized lawn mowing operations in small areas and narrow spaces, and has broad application prospects and significant practical value in many fields such as municipal administration and landscaping. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The drawings are provided for reference and illustration only and are not intended to limit this utility model. Wherein:

[0021] Figure 1 This is a perspective view of the standing-operated lawn cart of this utility model;

[0022] Figure 2 The three-dimensional walking control mechanism in this utility model Figure 1 ;

[0023] Figure 3 The three-dimensional walking control mechanism in this utility model Figure 2 ;

[0024] Figure 4 This is a perspective view of the grass-cutting and walking control mechanism of this utility model;

[0025] Figure 5 This is a three-dimensional enlarged view of the control handle portion of this utility model;

[0026] Figure 6 This is a perspective view of the transmission mechanism in this utility model;

[0027] In the diagram: 1. Frame; 2. Engine; 2a. Engine output shaft; 2b. Engine pulley one; 2c. Clutch; 2d. Engine pulley two;

[0028] 3. Left drive axle; 3a. Left drive axle pulley; 3b. Left wheel hub flange;

[0029] 4. Right drive axle; 4a. Right drive axle pulley; 4b. Right wheel hub flange;

[0030] 5. Wheels;

[0031] 6. Cutter head; 6a. Blade 1; 6a1. Blade pulley 1; 6b. Blade 2; 6b1. Blade pulley 2; 6c. Blade 3; 6c1. Blade pulley 3;

[0032] 7. Belt 1; 8. Tensioner 1; 8a. Tensioner arm 1; 8b. Spindle 3; 8c. Tension spring 3;

[0033] 9. Two belts; 10. Two tension pulleys; 10a. Two tension arms; 10b. Four spindles; 10c. Four tension springs; 11. Idler pulley;

[0034] 12. Fixed crossbar; 13. Operating handle; 13a. Left front handle; 13b. Right front handle; 13c. Left rear handle; 13d. Right rear handle;

[0035] 14. Rocker arm 1; 15. Connecting rod 1; 16. Drive axle control arm;

[0036] 17. Brake handle; 18. Second spindle; 19. Second rocker arm; 20. First tension spring; 21. Push rod; 21a. Push rod protrusion; 22. Second tension spring;

[0037] 23. Rocker; 23a. Rocker protruding tooth; 24. Spindle 1; 25. Brake pivot; 26. Pivot arm 1; 27. Pivot arm 2; 28. Link 2; 29. ​​Link 3; 30. Drive axle brake arm; 31. Link 4. Detailed Implementation

[0038] In the following description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device must have a specific orientation.

[0039] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0041] like Figures 1 to 6 As shown, the standing-operated lawnmower of this utility model includes a frame 1, an engine 2, wheels 5, a cutter head 6, a transmission mechanism, a drive axle, an operating handle 13, and a brake handle 17. The two ends of the fixed crossbar 12 are bent downward and fixedly connected to the frame 1. The operating handle 13 is divided into a left operating handle and a right operating handle. The left operating handle includes a left front handle 13a and a left rear handle 13c, and the right operating handle includes a right front handle 13b and a right rear handle 13d. The left front handle 13a and the right front handle 13b are located on the front side of the fixed crossbar 12, and the left rear handle 13c and the right rear handle 13d are located on the rear side of the fixed crossbar 12.

[0042] Each control handle 13 is connected to the upper end of the rocker arm 14 below it. The upper edge of the rocker arm 14 is provided with a locking groove. One end of the rocker arm 14 is hinged to a connecting rod 15. The lower end of the connecting rod 15 is hinged to the drive axle control arm 16 to control the forward or backward movement of the wheel 5.

[0043] The lower end of the brake handle 17 is connected to a spindle 2 18 and rotates around the spindle 2 18. The other end of the spindle 2 18 is fixedly connected to the rocker arm 2 19. The upper end of the rocker arm 2 19 is connected to a tension spring 1 20 so that the rocker arm 2 19 can be locked through the dead point under tension. The lower end of the rocker arm 2 19 is connected to the lower end of the push rod 21 through a short pin. The upper end of the push rod 21 is inserted into the rear end slot of the rocker plate 23. The rocker plate 23 has rocker plate protruding teeth 23a on both sides. When the rocker plate protruding teeth 23a are embedded in the locking groove of the rocker arm 1 14, the rocker arm 1 14 is locked and the operating handle 13 cannot move.

[0044] The two ends of the tension spring 22 are respectively connected to the lower end of the push rod 21 and the rear end of the rocker 23. The rocker 23 swings around the spindle 24 on both sides. The push rod 21 also has a push rod protrusion 21a on the rear side. When the brake handle 17 is unlocked and the rocker arm 19 is rotated, the push rod 21 rises, and the push rod protrusion 21a pushes the rear side of the rocker 23 upward, so that the rocker protrusion tooth 23a leaves the locking groove of the rocker arm 14, the rocker arm 14 is unlocked, and the operating handle 13 can move back and forth.

[0045] The brake pivot 25 is supported on the frame 1, and pivot arms 1 26 and 27 are respectively provided at both ends. The roots of pivot arms 1 26 and 27 are fixed on the brake pivot 25, and pivot arms 1 26 is located outside pivot arms 27.

[0046] The lower end of tension spring 20 is connected to the upper end of connecting rod 28. The lower end of connecting rod 28 is hinged to the free end of pivot arm 26. The free end of pivot arm 27 is also hinged to connecting rod 39. The lower end of connecting rod 329 is hinged to the drive end of drive axle brake arm 30.

[0047] Because the tension spring 20 is too thick and causes motion interference, a connecting rod 31 is hinged to the upper end of the rocker arm 19, and the lower end of the connecting rod 31 is connected to the upper end of the tension spring 20.

[0048] The rear ends of the frame 1 are respectively provided with a left drive axle 3 and a right drive axle 4. The input end of the left drive axle 3 is provided with a left drive axle pulley 3a, and the left side of the left drive axle 3 is provided with a left wheel hub flange 3b extending to the left. The input end of the right drive axle 4 is provided with a right drive axle pulley 4a, and the right side of the right drive axle 4 is provided with a right wheel hub flange 4b ​​extending to the right. Wheels 5 are respectively installed on the left wheel hub flange 3b and the right wheel hub flange 4b.

[0049] The front end of the frame 1 is provided with a cutter head 6, which contains a first blade 6a, a second blade 6b, and a third blade 6c. The upper end of the cutter shaft of the first blade 6a is driven by the first blade pulley 6a1, the upper end of the cutter shaft of the second blade 6b is driven by the second blade pulley 6b1, and the upper end of the cutter shaft of the third blade 6c is driven by the third blade pulley 6c1.

[0050] Engine pulley 2b and engine pulley 2d are mounted on the lower end of the engine output shaft 2a. Engine pulley 2d is located below engine pulley 2b and is connected via a clutch.

[0051] Engine pulley 2b is connected to left drive axle pulley 3a and right drive axle pulley 4a via belt 7. Tensioning arm 8a is connected to spindle 8b, allowing it to rotate around spindle 8b. One end of tensioning arm 8a is connected to frame 1 via tension spring 8c, and the other end of tensioning arm 8a is equipped with tension pulley 8, which abuts against the outside of belt 7 to tension it. Engine pulley 2b drives left drive axle pulley 3a and right drive axle pulley 4a to rotate via belt 7, thereby driving wheel 5 forward or turning.

[0052] The engine pulley 2d is connected to the blade pulleys 6a1, 6b1, and 6c1 via belt 9, synchronously driving the blades 6a1, 6b1, and 6c1 to rotate at high speed for mowing. An idler pulley 11 is located between blade pulleys 6a1 and 6b1, pressing against the outside of belt 9. Tensioning arm 10a is connected to spindle 10b, allowing it to rotate around spindle 10b. One end of tensioning arm 10a is connected to frame 1 via tension spring 10c, and the other end is equipped with tensioning wheel 10, located between engine pulley 2d and blade pulley 6a1, and resting against the outside of belt 9.

[0053] The above description is merely a preferred embodiment of the present utility model, showing and describing the basic principles, main features, and advantages of the present utility model. It is not intended to limit the scope of patent protection of the present utility model. Those skilled in the art should understand that the present utility model is not limited to the above embodiments. In addition to the above embodiments, the present utility model may have other implementations without departing from the spirit and scope of the present utility model. Various changes and improvements to the present utility model are also possible. All technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by the present utility model. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents. Technical features not described in the present utility model can be implemented by or using existing technology, and will not be elaborated here.

Claims

1. A standing-operated lawnmower, comprising a frame (1), an engine (2) mounted on the upper middle part of the frame (1), a cutter head (6) provided on the lower front end of the frame (1), and a left drive axle (3) and a right drive axle (4) respectively controlled by a drive axle control arm (16) on both sides of the rear end of the frame (1), characterized in that: A fixed crossbar (12) is installed on the upper rear side of the frame (1). The left front, left rear, right front and right rear of the fixed crossbar (12) are respectively provided with operating handles (13). The lower ends of the operating handles (13) on the left and right sides are respectively connected to the corresponding rocker arm (14). The upper edge of the rocker arm (14) is provided with a locking groove. The front end of the rocker arm (14) is hinged with a connecting rod (15). The lower end of the connecting rod (15) is hinged to the corresponding drive axle control arm (16). The lower end of the brake handle (17) is connected to the rocker arm (19) via the spindle (18). The upper end of the rocker arm (19) is connected to the tension spring (20), and the lower end of the tension spring (20) is connected to the drive mechanism of the drive axle brake arm (30). The lower end of rocker arm 2 (19) is hinged to the lower end of push rod (21), the upper end of push rod (21) is inserted into the rear end slot of rocker plate (23), and the lower end of push rod (21) is connected to the rear end of rocker plate (23) by tension spring 2 (22); rocker plate protrusion teeth (23a) are provided on the left and right sides respectively. When the brake handle (17) is in the brake position, the rocker plate protrusion teeth (23a) are embedded in the locking groove of rocker arm 1 (14).

2. The standing-operated lawnmower according to claim 1, characterized in that: The rear end of the frame (1) is hinged to a brake pivot (25), and two ends of the brake pivot (25) are respectively fixed to pivot arms two (27). One pivot arm one (26) is provided on the outer side of one pivot arm two (27). The lower end of the tension spring one (20) is connected to a connecting rod two (28), and the lower end of the connecting rod two (28) is hinged to the free end of the pivot arm one (26). The free ends of the two pivot arms two (27) are respectively hinged to connecting rod three (29), and the lower ends of connecting rod three (29) are respectively hinged to the free ends of the drive axle brake arm (30).

3. The standing-operated lawnmower according to claim 1, characterized in that: The rocker (23) is hinged to the frame (1) on both sides by a spindle (24). A push rod protrusion (21a) is provided on the rear side of the push rod (21). When the brake handle (17) is unlocked, the rocker arm (19) drives the push rod (21) to rise. The push rod protrusion (21a) pushes the rear side of the rocker (23) upward, so that the rocker protrusion tooth (23a) disengages from the locking groove of the rocker arm (14).

4. The standing-operated lawnmower according to claim 1, characterized in that: The upper end of the rocker arm 2 (19) is hinged to the connecting rod 4 (31), and the lower end of the connecting rod 4 (31) is connected to the upper end of the tension spring 1 (20).

5. The standing-operated lawnmower according to claim 1, characterized in that: The lower end of the output shaft of the engine (2) is equipped with an engine pulley (2b), the input end of the left drive axle (3) is provided with a left drive axle pulley (3a), and the input end of the right drive axle (4) is provided with a right drive axle pulley (4a); the engine pulley (2b) is connected to the left drive axle pulley (3a) and the right drive axle pulley (4a) through a belt (7).

6. The standing-operated lawnmower according to claim 5, characterized in that: The lower end of the output shaft of the engine (2) is also equipped with an engine pulley 2 (2d). Multiple blades are provided below the cutter head (6). Each blade has a blade pulley installed on the upper end of its shaft. The engine pulley 2 (2d) is connected to each blade pulley via belt 2 (9).

7. The standing-operated lawnmower according to claim 6, characterized in that: The cutter head (6) is provided with blade one (6a), blade two (6b) and blade three (6c) below it. Blade one (6a1) is installed on the upper end of the cutter shaft of blade one (6a), blade two (6b1) is installed on the upper end of the cutter shaft of blade two (6b), and blade three (6c1) is installed on the upper end of the cutter shaft of blade three (6c). The engine pulley two (2d) is connected to blade pulley one (6a1), blade pulley two (6b1) and blade pulley three (6c1) through belt two (9).

8. The standing-operated lawnmower according to claim 5, characterized in that: A tensioning wheel (8) is provided on the outer side of the belt (7). The tensioning wheel (8) is installed at one end of the tensioning arm (8a). The tensioning arm (8a) is hinged to the frame (1) through the spindle (8b). The other end of the tensioning arm (8a) is connected to the frame (1) through the tension spring (8c).

9. The standing-operated lawnmower according to claim 7, characterized in that: An idler pulley (11) is provided between the first blade pulley (6a1) and the second blade pulley (6b1); a tensioning pulley (10) is also provided on the outside of the second belt (9). The tensioning pulley (10) is installed at one end of the second tensioning arm (10a). The second tensioning arm (10a) is hinged to the frame (1) through the fourth spindle (10b). The other end of the second tensioning arm (10a) is connected to the frame (1) through the fourth tension spring (10c).

10. The standing-operated lawnmower according to claim 6, characterized in that: The second engine pulley (2d) is connected to the first engine pulley (2b) via a clutch (2c) and is located below the first engine pulley (2b).

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