Steering mechanism of mower

Abstract

The utility model discloses a lawn mower steering mechanism which comprises a supporting assembly, the supporting assembly comprises a supporting frame, two driving tires are rotationally installed on the front portion of the supporting frame, a mowing assembly is installed on the front portion of the supporting frame, a steering assembly is further arranged on the rear portion of the supporting frame, and the steering assembly comprises a cross beam which is fixed to the middle of the supporting frame. The side, away from the supporting frame, of the cross beam is fixedly connected with a guide pipe, a screw pipe is screwed into the guide pipe, a rotating shaft is rotatably mounted in the screw pipe, the lower portion of the rotating shaft is fixedly connected with a mounting base, and a steering tire is rotatably mounted on one side of the mounting base. According to the utility model, the steering tire is introduced, so that the steering operation becomes easier, the gravity of the whole mower does not need to be moved, and the physical output of an operator is reduced. A triangular supporting structure is formed by the two driving tires and the steering tire, the stability of the mower is improved, and it is ensured that the mower can stably run under various terrain conditions.

Description

Technical Field

[0001] The utility model belongs to the technical field of lawn mowers, in particular to a steering mechanism for lawn mowers. Background Art

[0002] A lawn mower, also known as a lawn machine, is a mechanical device used to mow lawns or grass. The main function of a lawn mower is to keep the lawn neat and beautiful by cutting grass stems.

[0003] The patent with the publication number CN105165228B in the conventional technology discloses a lawn mower, wherein a blade support is fixed in front of a trolley, a limiting sliding hole is provided on the blade support, a sliding rod is installed in the limiting sliding hole, the middle parts of the first rotating shaft and the second rotating shaft are installed on the blade support through a bearing, a first crank wheel is installed on the upper end of the first rotating shaft, a first sawtooth circular blade is installed on the lower end, a second crank wheel is installed on the upper end of the second rotating shaft, a second sawtooth circular blade is installed on the lower end, one end of the first connecting rod is connected to the first crank wheel, and the other end is connected to the sliding rod, one end of the second connecting rod is connected to the second crank wheel, and the other end is connected to the sliding rod, one end of the third connecting rod is connected to one end of the sliding rod, and the other end is connected to the third crank wheel, the third crank wheel is installed at one end of the third rotating shaft, and the other end of the third rotating shaft is connected to the power source on the trolley. The lawn mower not only improves the working efficiency of the lawn mower and reduces mechanical failures, but also can pull out grass roots while cutting weed rhizomes, thereby reducing the frequency of mowing.

[0004] However, there are some problems with the prior art: when a traditional lawn mower is in operation, it mainly relies on manpower to turn, so the overall gravity is needed to offset the lawn mower when turning, which is more laborious. Therefore, we propose a lawn mower steering mechanism. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model provides a steering mechanism for a lawn mower, which solves the problem that traditional lawn mowers rely mainly on manpower for steering during operation, and thus the overall gravity is needed to offset the lawn mower during steering, making steering more laborious.

[0006] The utility model is implemented as follows: a steering mechanism of a lawn mower comprises a support assembly, wherein the support assembly comprises a support frame, two active tires are rotatably mounted on the front of the support frame, a mowing assembly is mounted on the front of the support frame, a steering assembly is also provided on the rear of the support frame, the steering assembly comprises a crossbeam, the crossbeam is fixed to the middle of the support frame, a guide tube is fixedly connected to one side of the crossbeam away from the support frame, a screw tube is screwed inside the guide tube, a rotating shaft is rotatably mounted inside the screw tube, a mounting seat is fixedly connected to the lower part of the rotating shaft, and a steering tire is rotatably mounted on one side of the mounting seat.

[0007] As a preferred embodiment of the utility model, two handles are fixedly connected to the upper portion of the support frame, a fixed tube is fixedly connected to the center position of the upper portion of the support frame, and a shovel plate is fixedly connected to the lower portion of the support frame.

[0008] As a preferred embodiment of the utility model, a plug is rotatably installed inside the fixed tube, and the upper portion of the plug passes through the upper portion of the fixed tube and is fixedly connected to a second turntable.

[0009] As a preferred embodiment of the utility model, the outside of the spiral tube is fixedly connected to a first rotating disk, the upper part of the rotating shaft is fixedly connected to an insertion rod, and the upper part of the insertion rod is plugged into the insertion tube.

[0010] As a preferred embodiment of the utility model, the mowing assembly includes a rotating rod, two supporting plates are fixedly connected to the lower part of the supporting frame, the rotating rod is rotatably installed between the two supporting plates, and a roller is fixedly connected to the outside of the rotating rod.

[0011] As a preferred embodiment of the utility model, a gear ring is fixedly connected inside the driving wheel, gears are fixedly connected at both ends of the rotating rod, and the two gears are respectively meshed and connected with the gear rings in the two driving wheels.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model introduces a steering tire, which makes the steering operation easier. There is no need to move the entire lawn mower, which reduces the physical exertion of the operator. The improved steering mechanism makes the lawn mower more flexible and quick when turning, reduces the operation time and improves the work efficiency. The triangular support structure formed by two active tires and one steering tire increases the stability of the lawn mower, ensuring smooth operation under various terrain conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram provided by an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the steering assembly provided in the embodiment of the utility model;

[0016] Figure 3 It is a schematic diagram of the insertion rod structure provided by an embodiment of the utility model;

[0017] Figure 4 The utility model embodiment provides Figure 2 Schematic diagram of the structure at A in the middle;

[0018] Figure 5 It is a schematic diagram of the hob structure provided by an embodiment of the utility model.

[0019] In the figure: 1, support assembly; 2, active tire; 3, mowing assembly; 4, steering assembly; 101, support frame; 102, handle; 103, shovel board; 104, crossbeam; 105, guide tube; 106, support plate; 107, fixed tube;

[0020] 301, rotating rod; 302, hob; 303, gear; 304, gear ring;

[0021] 401, screw tube; 402, first turntable; 403, rotating shaft; 404, mounting seat; 405, insertion rod; 406, insertion tube; 407, second turntable; 408, steering tire. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 5 As shown, the steering mechanism of the lawn mower provided by the embodiment of the utility model includes a support assembly 1, the support assembly 1 includes a support frame 101, two active tires 2 are rotatably installed at the front of the support frame 101, a mowing assembly 3 is installed at the front of the support frame 101, and a steering assembly 4 is also provided at the rear of the support frame 101, the steering assembly 4 includes a crossbeam 104, the crossbeam 104 is fixed to the middle of the support frame 101, a guide tube 105 is fixedly connected to the side of the crossbeam 104 away from the support frame 101, a screw tube 401 is screwed inside the guide tube 105, a rotating shaft 403 is rotatably installed inside the screw tube 401, a mounting seat 404 is fixedly connected to the lower part of the rotating shaft 403, and a steering tire 408 is rotatably installed on one side of the mounting seat 404.

[0025] The above-mentioned lawn mower steering mechanism has two active tires 2 installed at the front of the support frame 101, and a mowing assembly 3 is installed at the front of the support frame 101 to provide forward power and mowing function. The steering assembly 4 at the rear of the support frame 101 is composed of a crossbeam 104 fixed to the middle of the support frame 101. A guide tube 105 is connected to one side of the crossbeam 104, and a screw tube 401 is installed inside the guide tube 105, and a rotatable shaft 403 is installed inside the screw tube 401. The lower part of the shaft 403 is fixedly connected to the mounting seat 404, and a rotatable steering tire 408 is installed on one side of the mounting seat 404. When steering is required, the direction of travel of the lawn mower is changed by rotating the steering tire 408. This design uses the steering tire 408 to share the steering task, reduces the demand for manpower, and thus greatly reduces the burden on the operator. At the same time, the triangular support structure formed by the two active tires 2 and the steering tire 408 increases the stability of the lawn mower and ensures smooth operation under various terrain conditions.

[0026] In this embodiment, two handles 102 are fixedly connected to the upper portion of the support frame 101 , a fixing tube 107 is fixedly connected to the center position of the upper portion of the support frame 101 , and a shovel plate 103 is fixedly connected to the lower portion of the support frame 101 .

[0027] Two handles 102 are fixedly connected to the upper part of the support frame, which facilitates the operator to hold and control the lawn mower. A fixed pipe 107 is fixedly connected to the center of the upper part of the support frame 101 to increase the stability and firmness of the structure. In addition, a shovel board 103 is fixedly connected to the lower part of the support frame 101. The shovel board 103 is designed to scoop up the pressed grass and guide it into the mowing component 3 for mowing, ensuring that the lawn can be evenly mowed and improving the mowing effect.

[0028] In this embodiment, a plug 406 is rotatably mounted inside the fixed tube 107, and the upper part of the plug 406 passes through the upper part of the fixed tube 107 and is fixedly connected to the second rotating disk 407. The outer part of the screw tube 401 is fixedly connected to the first rotating disk 402, and the upper part of the rotating shaft 403 is fixedly connected to the plug rod 405, and the upper part of the plug rod 405 is plugged with the plug 406.

[0029] A rotatable insert tube 406 is installed inside the fixed tube 107, and the upper part of the insert tube 406 passes through the top of the fixed tube 107, and a second turntable 407 is fixedly connected thereto. A first turntable 402 is fixedly connected to the outside of the screw tube 401, and a plug rod 405 is fixedly connected to the upper part of the rotating shaft 403, and the upper part of the plug rod 405 is plugged into the insert tube 406. By rotating the first turntable 402, the vertical height of the rotating shaft 403 in the screw tube 401 and the steering tire 408 can be controlled. This design allows the height of the lawn mower to be adjusted according to the terrain and work needs, thereby improving the adaptability and work efficiency of the lawn mower. Rotating the second turntable 407 is used to facilitate the steering operation, making the operation more simple and flexible.

[0030] In this embodiment, the mowing assembly 3 includes a rotating rod 301, two supporting plates 106 are fixedly connected to the lower part of the support frame 101, the rotating rod 301 is rotatably installed between the two supporting plates 106, and a roller cutter 302 is fixedly connected to the outside of the rotating rod 301. A gear ring 304 is fixedly connected to the inside of the driving wheel, and gears 303 are fixedly connected to both ends of the rotating rod 301, and the two gears 303 are respectively meshed and connected with the gear rings 304 in the two driving wheels.

[0031] When the operator pushes the lawn mower, the driving wheel rotates, driving the gear ring 304 inside it to rotate. Due to the meshing connection between the gear ring 304 and the gear 303, the rotation of the gear ring 304 is transmitted to the rotating rod 301 through the gear 303, so that the rotating rod 301 drives the reel 302 to rotate. The diameter of the gear ring 304 is larger than the diameter of the gear 303. This proportional design enables the reel 302 to perform mowing operations at an appropriate speed, ensuring the efficiency and effect of the lawn mower. By driving the reel 302 through the driving wheel, the reel 302 can be rotated at a variable speed, thereby improving the efficiency and effect of mowing.

[0032] The working principle of this utility model:

[0033] When in use, two active tires 2 are installed at the front of the support frame 101, and a mowing assembly 3 is installed at the front of the support frame 101 to provide forward power and mowing functions. The steering assembly 4 at the rear of the support frame 101 is composed of a crossbeam 104 fixed to the middle of the support frame 101. A guide tube 105 is connected to one side of the crossbeam 104, and a screw tube 401 is installed inside the guide tube 105, and a rotatable shaft 403 is installed inside the screw tube 401. The lower part of the shaft 403 is fixedly connected to a mounting seat 404, and a rotatable steering tire 408 is installed on one side of the mounting seat 404. When steering is required, the direction of travel of the lawn mower is changed by rotating the steering tire 408. This design utilizes the steering tire 408 to share the steering task, reduces the demand for manpower, and thus greatly reduces the burden on the operator.

[0034] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; in addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present utility model, it should be noted that: unless otherwise clearly stipulated and limited, the terms "installation", "connection", "setting" and "formation" should be understood in a broad sense; for example, it can be a fixed connection, setting, or a detachable connection, setting, or an integrated structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements; for those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0036] In the description of the present invention, reference to terms such as "embodiment", "specific example" or "practical application" means that the specific features, structures, materials or characteristics described in combination with the embodiment are included in at least one embodiment or example of the present invention; the schematic expressions of the above terms do not necessarily refer to the same embodiment or example, and the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A lawn mower steering mechanism, comprising a support assembly (1), characterized in that: The support assembly (1) comprises a support frame (101), two active tires (2) are rotatably mounted on the front of the support frame (101), a mowing assembly (3) is mounted on the front of the support frame (101), and a steering assembly (4) is also arranged on the rear of the support frame (101), the steering assembly (4) comprises a crossbeam (104), the crossbeam (104) is fixed to the middle of the support frame (101), a guide tube (105) is fixedly connected to the side of the crossbeam (104) away from the support frame (101), a screw tube (401) is screwed inside the guide tube (105), a rotating shaft (403) is rotatably mounted inside the screw tube (401), a mounting seat (404) is fixedly connected to the lower part of the rotating shaft (403), and a steering tire (408) is rotatably mounted on one side of the mounting seat (404).

2. The lawn mower steering mechanism according to claim 1, characterized in that: Two handles (102) are fixedly connected to the upper part of the support frame (101), a fixed pipe (107) is fixedly connected to the center position of the upper part of the support frame (101), and a shovel plate (103) is fixedly connected to the lower part of the support frame (101).

3. The lawn mower steering mechanism according to claim 2, characterized in that: An insert tube (406) is rotatably mounted inside the fixed tube (107), and the upper portion of the insert tube (406) passes through the upper portion of the fixed tube (107) and is fixedly connected to a second rotating disk (407).

4. The lawn mower steering mechanism according to claim 3, characterized in that: The outside of the spiral tube (401) is fixedly connected to a first rotating disk (402), the upper part of the rotating shaft (403) is fixedly connected to an insertion rod (405), and the upper part of the insertion rod (405) is plugged into the insertion tube (406).

5. The lawn mower steering mechanism according to claim 1, characterized in that: The mowing assembly (3) comprises a rotating rod (301), the lower part of the supporting frame (101) is fixedly connected to two supporting plates (106), the rotating rod (301) is rotatably installed between the two supporting plates (106), and the rotating rod (301) is fixedly connected to a roller (302) on the outside.

6. The lawn mower steering mechanism according to claim 5, characterized in that: A toothed ring (304) is fixedly connected inside the driving wheel, and gears (303) are fixedly connected at both ends of the rotating rod (301), and the two gears (303) are respectively meshed and connected with the toothed rings (304) in the two driving wheels.

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