阅读说明：本技术 一种市政工程用草坪修剪机 (Lawn trimmer for municipal works ) 是由 赵元凤 于 2021-07-29 设计创作，主要内容包括：本发明涉及一种修剪机,尤其涉及一种市政工程用草坪修剪机。本发明提供一种能快速修剪草坪,同时能根据需要将草坪被修剪成统一长度,而且能有效的避免修剪草坪的过程中草会扬起的市政工程用草坪修剪机。一种市政工程用草坪修剪机,包括有第一车轴、第二车轴、车架、刀盘和第一滑轨车架后侧左右两部均转动式设有第一车轴,车架前侧左右两部均转动式设有第二车轴,第一车轴与第二车轴均与地面接触配合,车架前侧左右两部对称焊接有第一滑轨。本发明通过设有割草机构和洒水机构,能快速对草坪进行修剪,同时能将水的喷在至草坪上,从而有效的降低草扬起情况出现。(The invention relates to a trimmer, in particular to a lawn trimmer for municipal engineering. The invention provides a lawn trimmer for municipal engineering, which can quickly trim a lawn, can trim the lawn into a uniform length according to needs, and can effectively avoid Chinese herbs from being kicked up in the process of trimming the lawn. The utility model provides a lawn mower for municipal works, is equipped with first axletree including first axletree, second axletree, frame, blade disc and the equal rotary type in first slide rail frame rear side left and right sides two, and the equal rotary type in frame front side left and right sides two is equipped with the second axletree, and first axletree all cooperates with ground contact with the second axletree, and two symmetrical welding have first slide rail about the frame front side. The lawn mower provided by the invention is provided with the mowing mechanism and the sprinkling mechanism, so that the lawn can be quickly trimmed, and meanwhile, water can be sprayed on the lawn, thereby effectively reducing the situation of grass uplift.)

1. A lawn trimmer for municipal engineering comprises a first axle (1), a second axle (2), a frame (3), a cutter head (301), a first slide rail (302), first slide bars (303), a first spring (304) and a first fixing sleeve (305), wherein the first axle (1) is rotatably arranged at the left and right sides of the rear side of the frame (3), the second axle (2) is rotatably arranged at the left and right sides of the front side of the frame (3), the first axle (1) and the second axle (2) are in contact fit with the ground, the first slide rails (302) are symmetrically welded at the left and right sides of the front side of the frame (3), the first slide bars (303) are slidably arranged in the two first slide rails (302), the first fixing sleeve (305) is connected between the inner ends of the two first slide bars (303), the cutter head (301) is rotatably arranged in the first fixing sleeve (305), the first spring (304) is connected between the first slide rails (302) and the corresponding first slide bars (303), the number of the first springs (304) is two, characterized in that: the lawn mower is characterized by further comprising a mowing mechanism (4) and a sprinkling mechanism (5), wherein the mowing mechanism (4) is installed on the first sliding rod (303) and the first fixing sleeve (305), and the sprinkling mechanism (5) is arranged on the frame (3).

2. A lawn trimmer for municipal engineering according to claim 1, wherein: mowing mechanism (4) is including first mount (41), protection casing (42), second mount (43) and motor (44), frame (3) front side left and right sides both symmetry welding have first mount (41), be connected with protection casing (42) between two first mount (41) inboards, blade disc (301) are located protection casing (42), the equal rigid coupling in two first slide bar (303) tops has second mount (43), be connected with motor (44) between two second mount (43) upper portions, the output shaft and the blade disc (301) top of motor (44) are connected.

3. A municipal lawn trimmer according to claim 2, wherein: watering mechanism (5) are including water tank (51), water pipe (52), flow control valve (53), head rod (54), second spring (55) and first wedge (56), install water tank (51) on frame (3), water pipe (52) are equipped with to water tank (51) lower part, water pipe (52) are located frame (3) below, water pipe (52) internal sliding formula is equipped with head rod (54), interval welding has flow control valve (53) on head rod (54), flow control valve (53) and water pipe (52) sliding type cooperation, head rod (54) left end rigid coupling has first wedge (56), the cover is equipped with second spring (55) on head rod (54), the both ends of second spring (55) are connected respectively on water pipe (52) and first wedge (56).

4. A municipal lawn trimmer according to claim 3, wherein: still including cleaning mechanism (6), clean mechanism (6) including second slide rail (61), third spring (62), second slide bar (63) and brush (64), frame (3) bottom symmetry welding has second slide rail (61), all slidingtype is equipped with second slide bar (63) on two second slide rail (61), the quantity of second slide bar (63) is four, be located and be connected with between second slide bar (63) the bottom with one side brush (64), the quantity of brush (64) is two, all overlap on two second slide rail (61) and be equipped with third spring (62), the both ends of third spring (62) are connected respectively on second slide rail (61) and second slide bar (63).

5. A lawn trimmer for municipal engineering according to claim 4, wherein: the lifting mechanism (7) comprises a third slide rail (71), a rack (72), a fourth spring (73), a second guide rod (74), a third fixed frame (75), a second connecting rod (76), a belt pulley group (77), a rotating shaft (78), a second fixed sleeve (79) and a one-way gear (710), the third fixed frame (75) is welded at the left part of the front side of the frame (3), the third slide rail (71) is fixedly connected at the front end of the third fixed frame (75), the rack (72) is arranged in the third slide rail (71) in a sliding manner, the second guide rod (74) is arranged at the upper part of the rack (72) in a sliding manner, the second connecting rod (76) is connected between the rack (72) and the top of the first slide bar (303) at the left side, the fourth spring (73) is sleeved on the second guide rod (74), and two ends of the fourth spring (73) are respectively connected to the rack (72) and the second guide rod (74), frame (3) front side left part rigid coupling has the fixed cover of second (79), the fixed cover of second (79) internal rotation formula is equipped with axis of rotation (78), be connected with between axis of rotation (78) left end and left second axletree (2) pulley group (77), pulley group (77) comprise two belt pulleys and belt, a belt pulley connection is on axis of rotation (78), another belt pulley connection is on second axletree (2), the belt is around between two belt pulleys, one-way gear (710) are installed to the right-hand member of axis of rotation (78), rack (72) and one-way gear (710) meshing, second guide bar (74) and one-way gear (710) contact cooperation.

6. A lawn trimmer for municipal engineering according to claim 5, wherein: the folding device further comprises an opening mechanism (8), the opening mechanism (8) comprises a first pulley (81), a second pulley (82), a third pulley (83), a third fixing sleeve (84), a pull rope (85), a lever (86), a fixing shaft (87) and a third connecting rod (88), the first pulley (81) is rotatably arranged at the left part and the right part of a second sliding rail (61) at the rear side, the second pulley (82) is rotatably arranged at the left part and the right part of the rear side at the bottom of the frame (3) symmetrically, the third pulley (83) is rotatably arranged at the left part and the right part of the rear side at the bottom of the frame (3) symmetrically, the third fixing sleeve (84) is fixedly connected to the left side and the right side of the upper part at the rear side of the frame (3) symmetrically, the pull rope (85) is slidably arranged in the third fixing sleeve (84) at the same side, the third connecting rod (88) is symmetrically arranged at the upper part at the rear side of the frame (3), fixed shafts (87) are installed on the two third connecting rods (88), levers (86) are arranged on the two fixed shafts (87) in a rotating mode, one ends of the two pull ropes (85) are connected with the front sides of the corresponding levers (86), and the other ends of the two pull ropes (85) are connected to second sliding rods (63) on the rear sides by respectively winding around the first pulleys (81), the second pulleys (82) and the third pulleys (83).

7. A lawn trimmer for municipal engineering according to claim 6, wherein: still including accuse flow mechanism (9), accuse flow mechanism (9) including the fixed cover of fourth (91), clamp plate (92), fifth spring (93), second wedge (94) and cam (95), frame (3) rear side left part welding has the fixed cover of fourth (91), fixed cover of fourth (91) inner sliding type is equipped with clamp plate (92), the cover is equipped with fifth spring (93) on clamp plate (92), the both ends of fifth spring (93) are connected respectively on the fixed cover of fourth (91) and clamp plate (92), clamp plate (92) front side top welding has second wedge (94), second wedge (94) and first wedge (56) contact cooperation, the first axletree (1) left side of rear side is equipped with cam (95), cam (95) and clamp plate (92) contact cooperation.

8. A lawn trimmer for municipal engineering according to claim 4, wherein: the second slide rail (61) is U-shaped.

Technical Field

The invention relates to a trimmer, in particular to a lawn trimmer for municipal engineering.

Background

The lawn is visible in communities, flower gardens and parks everywhere, the lawn generally needs to be trimmed to control the growth height of grass, and then the grass keeps flat and attractive for a long time, so that the lawn is suitable for the needs of people for rest activities, workers manually trim the lawn and need to consume great strength, meanwhile, the workers are difficult to be proved that the lawn is trimmed to be uniform in length, and the grass can be raised in the process of trimming the lawn by the workers.

Therefore, the lawn trimmer for municipal engineering is required to be designed, which can rapidly trim the lawn, can trim the lawn into a uniform length according to the requirement, and can effectively avoid uplifting of the grass in the process of trimming the lawn.

Disclosure of Invention

Need consume great strength in order to overcome the manual lawn of workman and prune, the difficult lawn of proving of workman is pruned into uniform length simultaneously, and the shortcoming that the in-process chinese herbal of workman's pruning lawn can be raised moreover, the technical problem that solve is: the utility model provides a can prune the lawn fast, can prune the lawn into unified length as required simultaneously, can effectually avoid the in-process grass of pruning the lawn can raise the lawn trimmer for municipal works.

The technical scheme of the invention is as follows: the utility model provides a lawn mower for municipal works, including first axletree, the second axletree, the frame, the blade disc, first slide rail, first slide bar, first spring and first fixed cover, the equal rotary type in both parts is equipped with first axletree about the frame rear side, the equal rotary type in both parts is equipped with the second axletree about the frame front side, first axletree and second axletree all cooperate with ground contact, the symmetrical welding in both parts has first slide rail about the frame front side, equal slidingtype is equipped with first slide bar in two first slide rails, be connected with first fixed cover between two first slide bar the inner, the rotary type is equipped with the blade disc in the first fixed cover, be connected with first spring between first slide rail and the first slide bar that corresponds, the quantity of first spring is two, its characterized in that: still including mowing mechanism and watering mechanism, install the mechanism of mowing on first slide bar and the first fixed cover, be equipped with watering mechanism on the frame.

Preferably, the mowing mechanism comprises a first fixing frame, a protective cover, a second fixing frame and a motor, the left fixing frame and the right fixing frame are symmetrically welded at the left side and the right side of the front side of the frame, the protective cover is connected between the inner sides of the two first fixing frames, the tops of the two first sliding rods are fixedly connected with the second fixing frame, the motor is connected between the upper portions of the two second fixing frames, and an output shaft of the motor is connected with the top end of the cutter head.

Preferably, the sprinkling mechanism comprises a water tank, a water pipe, a flow control valve, a first connecting rod, a second spring and a first wedge block, the water tank is mounted on the frame, the water pipe is arranged at the lower part of the water tank and is positioned below the frame, the first connecting rod is arranged in a sliding manner in the water pipe, the flow control valve is welded on the first connecting rod at intervals and is in sliding fit with the water pipe, the first wedge block is fixedly connected at the left end of the first connecting rod, the second spring is sleeved on the first connecting rod, and two ends of the second spring are respectively connected to the water pipe and the first wedge block.

Preferably, the cleaning mechanism comprises a second slide rail, a third spring, a second slide bar and brushes, the second slide rail is symmetrically welded to the bottom of the frame, the second slide bars are arranged on the two second slide rails in a sliding mode, the number of the second slide bars is four, the brushes are connected between the bottom ends of the second slide bars on the same side, the number of the brushes is two, the third springs are sleeved on the two second slide rails, and two ends of each third spring are connected to the second slide rail and the second slide bar respectively.

Preferably, the lifting device further comprises a lifting mechanism, the lifting mechanism comprises a third slide rail, a rack, a fourth spring, a second guide rod, a third fixing frame, a second connecting rod, a belt pulley group, a rotating shaft, a second fixing sleeve and a one-way gear, the third fixing frame is welded on the left portion of the front side of the frame, the third slide rail is fixedly connected to the front end of the third fixing frame, the rack is arranged in the third slide rail in a sliding mode, the second guide rod is arranged on the upper portion of the rack in a sliding mode, the second connecting rod is connected between the rack and the top of the first slide rod on the left side, the fourth spring is sleeved on the second guide rod, two ends of the fourth spring are respectively connected to the rack and the second guide rod, the second fixing sleeve is fixedly connected to the left portion of the front side of the frame, the rotating shaft is rotatably arranged in the second fixing sleeve, the belt pulley group is connected between the left end of the rotating shaft and the second axle on the left side, and the belt pulley group comprises two belt pulleys and a belt, one belt pulley is connected on the rotating shaft, the other belt pulley is connected on the second axle, the belt is wound between the two belt pulleys, the one-way gear is installed at the right end of the rotating shaft, the rack is meshed with the one-way gear, and the second guide rod is in contact fit with the one-way gear.

Preferably, the folding device further comprises an opening mechanism, the opening mechanism comprises a first pulley, a second pulley, a third fixing sleeve, pull ropes, levers, fixing shafts and a third connecting rod, the first pulley is rotatably arranged at the left part and the right part of a second sliding rail at the rear side, the second pulley is rotatably arranged at the left part and the right part of the rear side at the bottom of the frame, the third pulley is positioned at the rear side of the second pulley, the third fixing sleeves are symmetrically and fixedly connected at the left side and the right side of the upper part at the rear side of the frame, the number of the third fixing sleeves is two, the pull ropes are slidably arranged in the third fixing sleeves positioned at the same side, the third connecting rods are symmetrically arranged at the upper part at the rear side of the frame, the fixing shafts are installed on the two third connecting rods, the levers are rotatably arranged on the two fixing shafts, one ends of the two pull ropes are connected with the front sides of the corresponding levers, and the other ends of the two pull ropes are respectively wound around the first pulley, the second pulley and the third pulley, and the second sliding rod connected at the rear side of the second sliding rod The above.

Preferably, the automobile steering wheel further comprises a flow control mechanism, the flow control mechanism comprises a fourth fixing sleeve, a pressing plate, a fifth spring, a second wedge block and a cam, the fourth fixing sleeve is welded at the left part of the rear side of the automobile frame, the pressing plate is arranged in the fourth fixing sleeve in a sliding mode, the fifth spring is sleeved on the pressing plate, two ends of the fifth spring are respectively connected to the fourth fixing sleeve and the pressing plate, the second wedge block is welded at the top of the front side of the pressing plate, the second wedge block is in contact fit with the first wedge block, the cam is arranged on the left side of the first automobile axle at the rear side, and the cam is in contact fit with the pressing plate.

Preferably, the second slide rail is U-shaped.

The beneficial effects are that: 1. the lawn mower is provided with the mowing mechanism and the sprinkling mechanism, so that the lawn can be quickly trimmed, and meanwhile, water can be sprayed on the lawn, so that the situation of raising grass is effectively reduced;

2. the cleaning mechanism and the opening mechanism are arranged, so that the second sliding rod can slide outwards on the second sliding rail, and the grass can be scraped flat to avoid accumulation;

3. according to the invention, through the descending mechanism and the mowing mechanism, the lawn trimming height can be quickly adjusted according to requirements, so that the flatness of the lawn is ensured;

4. the flow control mechanism is matched with the sprinkling mechanism, so that the first wedge-shaped block is not required to be manually operated by a worker, and the labor burden of the worker is effectively reduced.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the mowing mechanism of the present invention.

Fig. 3 is a schematic perspective view of a sprinkler mechanism according to the present invention.

Fig. 4 is a schematic perspective view of the cleaning mechanism of the present invention.

Fig. 5 is a schematic perspective view of the descending mechanism of the present invention.

Fig. 6 is a schematic perspective view of the opening mechanism of the present invention.

Fig. 7 is a schematic perspective view of the flow control mechanism of the present invention.

Labeled as: 1-a first axle, 2-a second axle, 3-a frame, 301-a cutter head, 302-a first slide rail, 303-a first slide bar, 304-a first spring, 305-a first fixing sleeve, 4-a mowing mechanism, 41-a first fixing frame, 42-a protective cover, 43-a second fixing frame, 44-a motor, 5-a watering mechanism, 51-a water tank, 52-a water pipe, 53-a flow control valve, 54-a first connecting rod, 55-a second spring, 56-a first wedge block, 6-a sweeping mechanism, 61-a second slide rail, 62-a third spring, 63-a second slide bar, 64-a brush, 7-a descending mechanism, 71-a third slide rail, 72-a rack, 73-a fourth spring, 74-a second guide bar, 75-a third fixing frame, 76-a second connecting rod, 77-a belt pulley set, 78-a rotating shaft, 79-a second fixing sleeve, 710-a one-way gear, 8-an opening mechanism, 81-a first pulley, 82-a second pulley, 83-a third pulley, 84-a third fixing sleeve, 85-a pull rope, 86-a lever, 87-a fixing shaft, 88-a third connecting rod, 9-a flow control mechanism, 91-a fourth fixing sleeve, 92-a pressing plate, 93-a fifth spring, 94-a second wedge block and 95-a cam.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

A lawn trimmer for municipal engineering comprises a first axle 1, a second axle 2, a frame 3, a cutter disc 301, a first slide rail 302, a first slide bar 303, a first spring 304, a first fixing sleeve 305, a mowing mechanism 4 and a sprinkling mechanism 5, wherein the first axle 1 is rotatably arranged at the left and right parts of the rear side of the frame 3, the second axle 2 is rotatably arranged at the left and right parts of the front side of the frame 3, the first axle 1 and the second axle 2 are in contact fit with the ground, the first slide rail 302 is symmetrically welded at the left and right parts of the front side of the frame 3, the first slide bar 303 is slidably arranged in the two first slide rails 302, the first fixing sleeve 305 is connected between the inner ends of the two first slide bars 303, the cutter disc 301 is rotatably arranged in the first fixing sleeve 305, the first spring 304 is connected between the first slide rail 302 and the corresponding first slide bar 303, the number of the first springs 304 is two, the mowing mechanism 4 is arranged on the first slide bars 303 and the first fixing sleeve 305, the frame 3 is provided with a sprinkling mechanism 5.

When a worker needs to trim a lawn, the worker can move the vehicle frame 3, the first axle 1 and the second axle 2 rotate to enable the vehicle frame 3 to rapidly move above the lawn, then the worker can rotate the mowing mechanism 4, the mowing mechanism 4 rotates to enable the cutter head 301 to rotate in the first fixing sleeve 305, the cutter head 301 rotates to trim the lawn, the worker can adaptively press the mowing mechanism 4 downwards according to use needs, the mowing mechanism 4 enables the first sliding rod 303 to slide downwards on the first sliding rail 302, the first spring 304 is compressed, the cutter head 301 can cut the lawn short, in order to avoid raising in the lawn trimming process, the worker needs to pour water into the watering mechanism 5, then the worker can enable the watering mechanism 5 to spray water onto the lawn, so that the raising situation of the lawn is effectively reduced, when the worker temporarily does not need to cut the lawn, the worker can close the mowing mechanism 4, then the mowing mechanism 4 is quickly loosened, the first sliding rod 303 is enabled to slide upwards and reset on the first sliding rail 302 by resetting of the first spring 304, and the cutter head 301 can temporarily stop cutting the lawn, and if the worker needs to continue to cut the lawn, the worker can repeat the operation again.

Example 2

In a preferred embodiment of the present invention, as shown in fig. 2-7, the mowing mechanism 4 comprises a first fixing frame 41, a protective cover 42, a second fixing frame 43 and a motor 44, the first fixing frame 41 is symmetrically welded at the left and right parts of the front side of the frame 3, the protective cover 42 is connected between the inner sides of the two first fixing frames 41, the cutter 301 is located in the protective cover 42, the second fixing frame 43 is fixedly connected to the top parts of the two first sliding rods 303, the motor 44 is connected between the upper parts of the two second fixing frames 43, and the output shaft of the motor 44 is connected to the top end of the cutter 301.

When the carriage 3 is located above the lawn, the worker can rotate the motor 44, the rotation of the output shaft of the motor 44 can rotate the cutter head 301 in the first fixing sleeve 305, the protective cover 42 and the first fixing frame 41 can prevent the lawn from being raised, the second fixing frame 43 plays a supporting role, when the worker does not need to trim the lawn temporarily, the worker can turn off the motor 44, and if the worker needs to continue to trim the lawn, the worker can repeat the operation again.

The sprinkling mechanism 5 comprises a water tank 51, a water pipe 52, a flow control valve 53, a first connecting rod 54, a second spring 55 and a first wedge-shaped block 56, the water tank 51 is installed on the frame 3, the water pipe 52 is arranged on the lower portion of the water tank 51, the water pipe 52 is positioned below the frame 3, the first connecting rod 54 is arranged in the water pipe 52 in a sliding mode, the flow control valve 53 is welded on the first connecting rod 54 at intervals, the flow control valve 53 is in sliding fit with the water pipe 52, the first wedge-shaped block 56 is fixedly connected to the left end of the first connecting rod 54, the second spring 55 is sleeved on the first connecting rod 54, and two ends of the second spring 55 are respectively connected to the water pipe 52 and the first wedge-shaped block 56.

In order to avoid the uplifting of grass in the lawn trimming process, a worker needs to pour water into the water tank 51, the water in the water tank 51 flows into the water pipe 52, the worker needs to move the first wedge-shaped block 56 to the right side, the first wedge-shaped block 56 moves to the right side, the first connecting rod 54 slides to the right side in the water pipe 52, the flow control valve 53 slides to the right side along with the water, the second spring 55 is compressed, the flow control valve 53 stops blocking the water pipe 52 temporarily, the water in the water pipe 52 is sprayed on the lawn, the uplifting of the grass is effectively reduced, when the worker does not need to spray water onto the lawn temporarily, the worker can open the first wedge-shaped block 56 quickly, the second spring 55 resets to move the first wedge-shaped block 56 to the left side, the first connecting rod 54 and the flow control valve slide to the left side in the water pipe 52, and the flow control valve 53 blocks the water pipe 52 again, the water in the water pipe 52 temporarily stops spraying on the lawn, and if the worker needs to continue spraying water on the lawn, the worker repeats the above operation again.

Still including cleaning mechanism 6, clean mechanism 6 including second slide rail 61, third spring 62, second slide bar 63 and brush 64, frame 3 bottom symmetric welding has second slide rail 61, all slidingtype is equipped with second slide bar 63 on two second slide rails 61, the quantity of second slide bar 63 is four, lie in and be connected with brush 64 between the second slide bar 63 bottom with one side, the quantity of brush 64 is two, all overlap on two second slide rails 61 and be equipped with third spring 62, the both ends of third spring 62 are connected respectively on second slide rail 61 and second slide bar 63.

In order to avoid the situation that the trimmed grass is accumulated to influence the growth of other grass, when a worker needs to level the trimmed grass, the worker needs to slide the second slide bar 63 outwards on the second slide rail 61, the brush 64 moves outwards along with the second slide bar to level the grass, the third spring 62 is compressed, when the worker does not need to level the grass temporarily, the worker can quickly loosen the second slide bar 63, the third spring 62 resets to enable the second slide bar 63 to slide inwards on the second slide rail 61, the brush 64 moves inwards along with the second slide bar to level the grass again, when the brush 64 slides inwards to return to the original position, the brush 64 stops leveling the grass temporarily, and if the worker needs to continue to level the grass, the worker repeats the operation again.

The lifting mechanism 7 is further included, the lifting mechanism 7 includes a third slide rail 71, a rack 72, a fourth spring 73, a second guide rod 74, a third fixing frame 75, a second connecting rod 76, a belt wheel set 77, a rotating shaft 78, a second fixing sleeve 79 and a one-way gear 710, the third fixing frame 75 is welded at the left portion of the front side of the frame 3, the third slide rail 71 is fixedly connected at the front end of the third fixing frame 75, the rack 72 is arranged in the sliding manner, the second guide rod 74 is arranged at the upper portion of the rack 72 in the sliding manner, the second connecting rod 76 is connected between the rack 72 and the top of the first slide rod 303 at the left side, the fourth spring 73 is sleeved on the second guide rod 74, two ends of the fourth spring 73 are respectively connected to the rack 72 and the second guide rod 74, the left portion of the front side of the frame 3 is fixedly connected with the second fixing sleeve 79, the rotating shaft 78 is arranged in the rotating manner in the second fixing sleeve 79, the belt wheel set 77 is connected between the left end of the rotating shaft 78 and the second axle 2 at the left side, the pulley group 77 is composed of two pulleys, one of which is connected to the rotation shaft 78 and the other of which is connected to the second axle 2, and a belt wound between the two pulleys, the one-way gear 710 is installed at the right end of the rotation shaft 78, the rack 72 is engaged with the one-way gear 710, and the second guide bar 74 is in contact fit with the one-way gear 710.

The manual sliding process of the first sliding bar 303 by a worker is complicated, so when the second axle 2 rotates, the second axle 2 rotates the pulley set 77, the pulley set 77 rotates the rotating shaft 78 in the second fixing sleeve 79, the rotating shaft 78 rotates the one-way gear 710, the one-way gear 710 rotates the rack 72 to slide downward in the third sliding bar 71, so that the fourth spring 73, the second guiding bar 74 and the second connecting bar 76 move downward, the one-way gear 710 slides the second guiding bar 74 downward in the rack 72, the fourth spring 73 deforms, the second connecting bar 76 moves downward to slide the first sliding bar 303, when the fourth spring 73 is reset, the fourth spring 73 resets the second guiding bar 74 to slide in the rack 72, the second guiding bar 74 resets the one-way gear 710 to rotate in the opposite direction, so that the rack 72 slides upward in the third sliding bar 71, the upward sliding of the rack 72 will drive the second connecting rod 76 to move upward, and the first sliding rod 303 will move upward to reset, so that the trimmer can quickly adjust the height of the lawn to be trimmed as required.

The bicycle frame further comprises an opening mechanism 8, the opening mechanism 8 comprises a first pulley 81, a second pulley 82, a third pulley 83, a third fixing sleeve 84, a pull rope 85, a lever 86, a fixed shaft 87 and a third connecting rod 88, the first pulley 81 is rotatably arranged at the left and right parts of the second slide rail 61 at the rear side, the second pulley 82 is rotatably arranged at the left and right parts of the rear side at the bottom of the frame 3, the third pulley 83 is rotatably arranged at the left and right parts of the rear side at the bottom of the frame 3, the third fixing sleeve 84 is symmetrically fixedly connected at the left and right sides of the upper part at the rear side of the frame 3, the number of the third fixing sleeves 84 is two, the pull rope 85 is slidably arranged in the third fixing sleeve 84 at the same side, the third connecting rod 88 is symmetrically arranged at the upper part at the rear side of the frame 3, the fixed shaft 87 is arranged on the two third connecting rods 88, the levers 86 are rotatably arranged on the two fixed shafts 87, one ends of the two pull ropes 85 are connected to the front side of the corresponding lever 86, and the other ends of the two pull ropes 85 are connected to the second slide bar 63 on the rear side by being wound around the first pulley 81, the second pulley 82, and the third pulley 83, respectively.

The process of the worker manually making the second sliding rod 63 slide on the second sliding rail 61 to the outside is more complicated, the worker can make the lever 86 rotate on the fixed shaft 87, the third connecting rod 88 plays a supporting role, the lever 86 rotates to make the pulling rope 85 rotate, the first pulley 81, the second pulley 82 and the third pulley 83 can adaptively rotate, the first pulley 81, the second pulley 82 and the third pulley 83 can guide the pulling rope 85, the third fixing sleeve 84 can prevent the pulling rope 85 from displacing, further the pulling rope 85 can make the second sliding rod 63 slide on the second sliding rail 61 to the outside, when the worker can make the lever 86 rotate on the fixed shaft 87 to reset, the lever 86 rotates to make the pulling rope 85 rotate, so that the first pulley 81, the second pulley 82 and the third pulley 83 can adaptively rotate, the first pulley 81, the second pulley 82 and the third pulley 83 can guide the pulling rope 85, the third fixing sleeve 84 can prevent the pulling rope 85 from displacing, furthermore, the second sliding rod 63 can slide inwards on the second sliding rail 61 to reset through the pull rope 85, so that the trimmer can rapidly slide the second sliding rod 63 outwards on the second sliding rail 61 as required, and the labor intensity of workers is effectively reduced.

Still flow mechanism 9 including the accuse, mechanism 9 is flowed in the accuse is including the fixed cover 91 of fourth, clamp plate 92, fifth spring 93, second wedge 94 and cam 95, the welding of frame 3 rear side left part has the fixed cover 91 of fourth, the fixed cover 91 internal sliding type of fourth is equipped with clamp plate 92, the cover is equipped with fifth spring 93 on the clamp plate 92, the both ends of fifth spring 93 are connected respectively on fixed cover 91 of fourth and clamp plate 92, the welding of clamp plate 92 front side top has second wedge 94, second wedge 94 and the cooperation of the contact of first wedge 56, 1 left side of first axletree of rear side is equipped with cam 95, cam 95 and the cooperation of the contact of clamp plate 92.

A process that a worker manually moves the first wedge block 56 to the right side is complicated, so that when the first axle 1 rotates, the first axle 1 rotates the cam 95, the cam 95 causes the pressing plate 92 to slide forward in the fourth fixing sleeve 91 when the cam 95 rotates to contact with the pressing plate 92, the fifth spring 93 is compressed, the second wedge block 94 moves forward along with the cam, when the second wedge block 94 moves forward to contact with the first wedge block 56, the second wedge block 94 causes the first wedge block 56 to move to the right side, the second spring 55 is compressed, when the cam 95 rotates to temporarily stop contacting with the pressing plate 92, the fifth spring 93 resets to cause the pressing plate 92 to slide backward in the fourth fixing sleeve 91, the second wedge block 94 slides backward along with the cam, the second wedge block 94 slides backward to temporarily stop contacting with the first wedge block 56, the second spring 55 resets to cause the first wedge block 56 to move to the left side, the trimmer can realize that the first wedge block 56 does not need to be manually operated by a worker, thereby effectively lightening the labor burden of the worker.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.