Grass and tree pruning device for municipal gardens

Abstract

According to the grass and tree pruning device for the municipal gardens, a cutter is arranged at the position, close to the bottom, of the outer wall of a sleeve, the sleeve is movably arranged on an output shaft of an engine in a sleeving mode, and a mounting plate rotationally connected with the sleeve through a bearing is in sliding connection in a sliding groove in a matched mode, so that a threaded rod can be driven to rotate by rotating an operation disc; by means of threaded connection between a threaded rod and a base plate, a mounting plate can be driven to slide up and down in a sliding groove, then the purpose of driving a cutter to move up and down is achieved, and the purpose of conveniently cutting out landscape grass with different heights during garden landscaping is achieved; and rotation of the threaded rod caused by vibration in the action process of the cutter can be prevented.

Description

Technical Field

[0001] The utility model relates to a grass and tree pruning device used in municipal gardens, belonging to the technical field of grass and tree pruning devices. Background Art

[0002] The plants in garden landscaping have multiple meanings. In terms of aesthetics: plants are one of the important decorative plants in gardens. Their colors, shapes and growth habits can add layers and dynamic beauty to garden landscapes. In terms of ecology: the roots of plants can effectively fix the soil, prevent soil erosion, and provide habitats for microorganisms and animals in the soil. In terms of function: lawns can be used as places for leisure and entertainment, where people can move around and relax. Plants need to be trimmed regularly during their growth to maintain their beauty and a certain height, but the existing push-type plant trimming device does not have the function of adjusting the cutter up and down, which is not conducive to trimming plants at different heights. Therefore, the utility model proposes a plant trimming device for municipal gardens to solve the problem that the push-type plant trimming device does not have the function of adjusting the cutter up and down. Utility Model Content

[0003] Based on the above background, the purpose of the utility model is to provide a grass and tree pruning device for municipal gardens to solve the problems in the background technology.

[0004] The utility model provides the following technical solutions:

[0005] A grass and tree pruning device for municipal gardens comprises a chassis, an engine is arranged on the top of the chassis, a working chamber is arranged at the bottom of the chassis, the engine is provided with an output shaft, the output shaft passes through the chassis and is located in the working chamber, a sleeve is movably sleeved on the output shaft, a group of colinear cutters are arranged on the outer cylindrical surface of the sleeve near the bottom, a bearing is arranged on the outer cylindrical surface of the sleeve near the top, a mounting plate is arranged on the outer ring of the bearing, a group of sliding grooves are arranged on the inner wall of the working chamber, both ends of the mounting plate are slidably connected with the sliding grooves, a threaded rod is arranged on one side of the bearing at the top of the mounting plate, the threaded rod passes through the top surface of the chassis and is threadedly connected to the chassis, the bottom of the threaded rod is rotatably connected with the mounting plate, an operating disk is arranged on the top of the threaded rod, a limiting groove is arranged on the side wall of the threaded rod, and a blocking component is arranged on the top of the chassis, and the blocking component can be blocked with the limiting groove to prevent the threaded rod from rotating.

[0006] Preferably, a first annular mounting platform is provided near the top of the outer cylindrical surface of the sleeve, and the bearing sleeve is mounted on the outer cylindrical surface of the first mounting platform. The top of the first mounting platform is detachably connected to an inner ring pressure plate by bolts, and the bottom of the inner ring pressure plate is pressed on the inner ring top surface of the bearing. A bearing chamber is provided in the center of the top of the mounting plate, and a through hole is provided in the center of the bottom of the bearing chamber. The bearing is located in the bearing chamber, and a pressure plate groove coaxial with the bearing chamber is opened in the center of the top of the mounting plate. An outer ring pressure plate is detachably connected to the pressure plate groove by bolts, and the bottom of the outer ring pressure plate is pressed on the outer ring top surface of the bearing, and the mounting plate and the sleeve are rotatably connected through the bearing.

[0007] Preferably, the positioning assembly comprises a U-shaped fixing frame, which is fixedly connected to the position where the threaded rod on the top of the chassis passes through, and matching slide grooves are provided on the side walls on both sides of the U-shaped fixing frame, and a square frame is provided outside the U-shaped fixing frame, and the square frame is provided with slide rails on the side walls of the two side walls corresponding to the matching slide grooves on the U-shaped fixing frame, and the square frame is slidably matched with the U-shaped fixing frame through the sliding connection between the slide rails and the matching slide grooves. A positioning column is provided on the inner side wall of the square frame corresponding to the opening side of the U-shaped fixing frame, and a spring is fixedly connected to the center of an inner wall parallel to a surface provided with the positioning column, and the spring abuts on the U-shaped fixing frame at one end away from the fixed connection with the square frame.

[0008] Preferably, the front and rear ends of the chassis are rotatably connected with moving wheels, and the top rear end of the chassis is provided with a pushing handle.

[0009] Preferably, a grass collecting bag is detachably connected to the rear portion of the chassis, and the inner space of the grass collecting bag is communicated with the working chamber.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The utility model discloses a grass and tree trimming device for municipal gardens, wherein a cutting knife is arranged on the outer wall of a sleeve near the bottom, and the sleeve is movably sleeved on the output shaft of an engine, and a mounting plate rotatably connected to the sleeve through a bearing is slidably connected in a sliding groove, so that a rotating operating disk can drive a threaded rod to rotate, and a threaded connection between the threaded rod and a chassis can drive the mounting plate to slide up and down in the sliding groove, thereby achieving the purpose of driving the cutting knife to move up and down, facilitating the purpose of cutting landscape grass of different heights during garden landscaping, and at the same time, a clamping assembly arranged on the top of the chassis can prevent the threaded rod from rotating due to vibration during the action of the cutting knife.

[0012] The utility model discloses a grass and tree trimming device for municipal gardens, which can be used to install other components of a positioning assembly by arranging a U-shaped fixing frame, and a square frame is slidably connected to the U-shaped fixing frame by utilizing a sliding connection between a matching slide groove and a slide rail, and a positioning column is arranged on the square frame, so that after the positioning column is inserted into a limiting groove on the threaded rod, the threaded rod can be effectively prevented from rotating, and a spring can be arranged, so that the engaging state of the positioning column and the limiting groove can be maintained by the elastic force of the spring, and the engaging state of the positioning column and the limiting groove can be reset at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above;

[0016] Figure 3 It is a schematic diagram of the positional relationship between the mounting plate, the bearing and the sleeve of the utility model;

[0017] Figure 4 This utility model Figure 3 A cross-sectional view of

[0018] Figure 5 It is a schematic diagram of the structure of the clamping assembly of the utility model.

[0019] In the figure: 1. chassis; 2. engine; 3. positioning assembly; 301. U-shaped fixing frame; 302. matching slide groove; 303. square frame; 304. slide rail; 305. positioning column; 306. spring; 4. working chamber; 5. output shaft; 6. sleeve; 7. cutter; 8. bearing; 9. mounting plate; 10. sliding groove; 11. threaded rod; 12. operating panel; 13. limiting groove; 14. first mounting platform; 15. inner ring pressure plate; 16. bearing chamber; 17. through hole; 18. pressure plate groove; 19. outer ring pressure plate; 20. moving wheel; 21. pushing handle; 22. grass collecting bag. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described in detail below through specific embodiments and in combination with the accompanying drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any form of modification and / or change made to the utility model will fall within the protection scope of the utility model.

[0021] In the present invention, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the field. The methods in the following embodiments, unless otherwise specified, are conventional methods in the field. The components or equipment in the following embodiments, unless otherwise specified, are universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods.

[0022] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. In the following detailed description, for ease of explanation, many specific details are described to provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may also be implemented by those skilled in the art without these specific details.

[0023] like Figure 1-Figure 5 As shown, a grass and tree pruning device for municipal gardens includes a chassis 1, an engine 2 is provided on the top of the chassis 1, a working chamber 4 is provided at the bottom of the chassis 1, an output shaft 5 is provided on the engine 2, the output shaft 5 passes through the chassis 1 and is located in the working chamber 4, a sleeve 6 is movably sleeved on the output shaft 5, a group of colinear cutters 7 are provided on the outer cylindrical surface of the sleeve 6 near the bottom, a bearing 8 is provided on the outer cylindrical surface of the sleeve 6 near the top, a mounting plate 9 is provided on the outer ring of the bearing 8, a group of sliding grooves 10 are provided on the inner wall of the working chamber 4, both ends of the mounting plate 9 are slidably connected with the sliding grooves 10, a threaded rod 11 is provided on one side of the bearing 8 at the top of the mounting plate 9, the threaded rod 11 passes through the top surface of the chassis 1 and is threadedly connected to the chassis 1, the bottom of the threaded rod 11 is rotatably connected with the mounting plate 9, an operating panel 12 is provided on the top of the threaded rod 11, a limiting groove 13 is provided on the side wall of the threaded rod 11, and a clamping component 3 is provided on the top of the chassis 1, and the clamping component 3 can be clamped with the limiting groove 13 to prevent the threaded rod 11 from rotating.

[0024] In the above technical solution, the cutter 7 is arranged on the outer wall of the sleeve 6 near the bottom, and the sleeve 6 is movably sleeved on the output shaft 5 of the engine 2, and the mounting plate 9 rotatably connected to the sleeve 6 through the bearing 8 is slidably connected in the sliding groove 10, so that the rotating operating disk 12 can drive the threaded rod 11 to rotate, and the threaded connection between the threaded rod 11 and the chassis 1 can drive the mounting plate 9 to slide up and down in the sliding groove, thereby achieving the purpose of driving the cutter 7 to move up and down, which is convenient for cutting landscape grass of different heights during garden landscaping. At the same time, the locking component 3 set on the top of the chassis 1 can prevent the rotation of the threaded rod 11 caused by vibration during the operation of the cutter 7.

[0025] In the utility model, a first annular mounting platform 14 is provided near the top of the outer cylindrical surface of the sleeve 6, and the bearing 8 is sleeved on the outer cylindrical surface of the first mounting platform 14. The top of the first mounting platform 14 is detachably connected to an inner ring pressure plate 15 by bolts, and the bottom of the inner ring pressure plate 15 is pressed on the inner ring top surface of the bearing 8. A bearing chamber 16 is provided in the center of the top of the mounting plate 9, and a through hole 17 is provided in the center of the bottom of the bearing chamber 16. The bearing 8 is located in the bearing chamber 16. A pressure plate groove 18 coaxial with the bearing chamber 16 is opened in the center of the top of the mounting plate 9, and an outer ring pressure plate 19 is detachably connected to the pressure plate groove 18 by bolts, and the bottom of the outer ring pressure plate 19 is pressed on the outer ring top surface of the bearing 8. The mounting plate 9 and the sleeve 6 are rotatably connected through the bearing 8.

[0026] In the above technical solution, the inner ring of the bearing 8 is pressed onto the first mounting platform 14 by using the inner ring pressure plate 15, and the outer ring of the bearing 8 is pressed into the bearing 8 cavity by using the outer ring pressure plate 19, so that the cutter 7 will not be affected by the rotating connection of the bearing 8 during the height adjustment process.

[0027] In the present invention, the locking component 3 includes a U-shaped fixing frame 301, which is fixedly connected to the position where the threaded rod 11 on the top of the chassis 1 passes through, and matching slide grooves 302 are provided on the side walls of the U-shaped fixing frame 301 on both sides. A square frame 303 is provided outside the U-shaped fixing frame 301, and the side walls of the square frame 303 corresponding to the two side walls of the matching slide grooves 302 on the U-shaped fixing frame 301 are provided with slide rails 304. The square frame 303 is slidably connected with the U-shaped fixing frame 301 through the sliding connection between the slide rails 304 and the matching slide grooves 302, and a locking column 305 is provided on the inner side wall of the square frame 303 corresponding to the opening side of the U-shaped fixing frame 301, and a spring 306 is fixedly connected to the center of an inner wall of the square frame 303 parallel to a surface provided with the locking column 305, and the spring 306 abuts on the U-shaped fixing frame 301 away from the end fixedly connected to the square frame 303.

[0028] In the above technical scheme, a U-shaped fixing frame 301 is provided to install other components of the locking assembly 3. The U-shaped fixing frame 301 is slidably connected with the sliding groove 302 and the sliding rail 304, and then slidably connected with the square frame 303. A locking column 305 is provided on the square frame 303, so that after the locking column 305 is inserted into the limiting groove 13 on the threaded rod 11, the threaded rod 11 can be effectively prevented from rotating. By providing a spring 306, the locking state of the locking column 305 and the limiting groove 13 can be maintained with the help of the elastic force of the spring 306, and the locking state of the locking column 305 and the limiting groove 13 can be reset.

[0029] In the present invention, in order to facilitate the movement of the present invention, moving wheels 20 are rotatably connected at the front and rear ends of the chassis 1 , and in order to facilitate the movement of the present invention, a pushing handle 21 is provided at the top rear end of the chassis 1 .

[0030] In the present invention, in order to collect the cut excess landscape grass, a grass collecting bag 22 is detachably connected to the rear of the chassis 1 , and the inner space of the grass collecting bag 22 is communicated with the working chamber 4 .

[0031] The working principle of the grass and tree pruning device for municipal gardens of the utility model is as follows:

[0032] During adjustment, one hand pushes the square frame 303 to move toward one end of the engine 2. During this process, the spring 306 is compressed, and the slide rail 304 moves toward one end of the engine 2 in the matching slide groove 302 until the square frame 303 cannot be pushed. At this time, the positioning column is driven by the square frame 303 to escape from the limiting groove 13, and the pushing state of the square frame 303 is kept unchanged. When the operating disk 12 is rotated to drive the threaded rod 11 to rotate, the threaded rod 11 rotates upward or downward on the chassis 1, thereby driving the mounting plate 9 to move upward or downward in the sliding groove 10. This can drive the depth of the sleeve 6 on the output shaft 5 of the engine 2 to become deeper or shallower, so as to achieve the purpose of adjusting the height of the cutter 7 from the ground within a certain distance. After the cutter 7 is adjusted to a suitable height, the square frame 303 is released, and under the elastic reset force of the spring 306, the square frame 303 is driven to move away from the engine 2, so that the positioning column can be against the threaded rod 11, and then the operating disk is rotated until the positioning column is inserted into the limit groove 13 so that the threaded rod 11 cannot rotate, thereby completing the entire height adjustment process of the cutter 7.

[0033] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A grass and tree pruning device for municipal gardens, characterized in that: The invention comprises a chassis (1), wherein an engine (2) is arranged on the top of the chassis (1), a working chamber (4) is arranged on the bottom of the chassis (1), the engine (2) is provided with an output shaft (5), the output shaft (5) passes through the chassis (1) and is located in the working chamber (4), a sleeve (6) is movably sleeved on the output shaft (5), a group of co-linear cutters (7) are arranged on the outer cylindrical surface of the sleeve (6) near the bottom, a bearing (8) is arranged on the outer cylindrical surface of the sleeve (6) near the top, a mounting plate (9) is arranged on the outer ring of the bearing (8), and a group of sliding grooves (10) are arranged on the inner wall of the working chamber (4) The two ends of the mounting plate (9) are slidably connected to the sliding groove (10), a threaded rod (11) is provided on one side of the top bearing (8) of the mounting plate (9), the threaded rod (11) passes through the top surface of the chassis (1) and is threadedly connected to the chassis (1), the bottom of the threaded rod (11) is rotatably connected to the mounting plate (9), an operating panel (12) is provided on the top of the threaded rod (11), a limiting groove (13) is provided on the side wall of the threaded rod (11), and a locking assembly (3) is provided on the top of the chassis (1), and the locking assembly (3) can be locked with the limiting groove (13) to prevent the threaded rod (11) from rotating.

2. A grass and tree trimming device for municipal gardens according to claim 1, characterized in that: A first annular mounting platform (14) is provided near the top of the outer cylindrical surface of the sleeve (6); the bearing (8) is sleeved on the outer cylindrical surface of the first mounting platform (14); the top of the first mounting platform (14) is detachably connected to an inner ring pressure plate (15) by bolts; the bottom of the inner ring pressure plate (15) is pressed on the inner ring top surface of the bearing (8); a bearing chamber (16) is provided at the center of the top of the mounting plate (9); a through hole (17) is provided at the center of the bottom of the bearing chamber (16); the bearing (8) is located in the bearing chamber (16); a pressure plate groove (18) coaxial with the bearing chamber (16) is provided at the center of the top of the mounting plate (9); an outer ring pressure plate (19) is detachably connected to the pressure plate groove (18) by bolts; the bottom of the outer ring pressure plate (19) is pressed on the outer ring top surface of the bearing (8); the mounting plate (9) is rotatably connected to the sleeve (6) by the bearing (8).

3. A grass and tree trimming device for municipal gardens according to claim 2, characterized in that: The positioning assembly (3) comprises a U-shaped fixing frame (301), the U-shaped fixing frame (301) is fixedly connected to the position where the threaded rod (11) on the top of the chassis (1) passes through, the side walls of both sides of the U-shaped fixing frame (301) are provided with matching slide grooves (302), the U-shaped fixing frame (301) is provided with a square frame (303) outside, and the square frame (303) is provided with slide rails (304) on the side walls of the two side walls corresponding to the matching slide grooves (302) on the U-shaped fixing frame (301), and the square frame ( The square frame (303) is slidably connected with the U-shaped fixing frame (301) through the sliding connection of the sliding rail (304) and the matching sliding groove (302); a locking column (305) is provided on the inner side wall of the square frame (303) corresponding to the opening side of the U-shaped fixing frame (301); a spring (306) is fixedly connected to the center of an inner wall of the square frame (303) parallel to a surface provided with the locking column (305); and the spring (306) is abutted on the U-shaped fixing frame (301) at one end away from the fixed connection with the square frame (303).

4. A grass and tree trimming device for municipal gardens according to claim 3, characterized in that: The front and rear ends of the chassis (1) are rotatably connected to moving wheels (20), and the top and rear ends of the chassis (1) are provided with a pushing handle (21).

5. A grass and tree trimming device for municipal gardens according to claim 4, characterized in that: The rear part of the chassis (1) is detachably connected to a grass collecting bag (22), and the internal space of the grass collecting bag (22) is in communication with the working chamber (4).

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