CN209201543U - Set in cutter and height adaptive adjust household mowing grass catcher - Google Patents

Abstract

The utility model discloses a household mowing and collecting device with a cutting knife in the middle and self-adaptive adjustment in height. Existing lawn mowers are not suitable for home garden lawns. The utility model comprises a terrain self-adaptive rear drive chassis assembly, a cutter, a column connecting rod, a column, a cutter motor, a cutter height adjustment assembly, a cutter angle adjustment assembly and a broken grass collection assembly; the cutter motor drives the cutter to rotate Mowing, the broken grass is lifted upwards by the cyclone action of the rotating cutter and the blocking effect of the cutter baffle of the cutter, and then the weeds are guided by the arc at the rear of the cutter by the rotation of the grass collecting comb in the arc guide channel The bottom of the channel is transported to the top, and then the broken grass extrusion block reciprocates to push the broken grass in the arc-shaped guide channel into the grass collection box to complete the grass collection and compression. The utility model can self-adaptively adjust the height of the knife, self-adaptively adjust the angle of the cutting knife, self-adaptive to the topography and independently process the weed cutting.

Description

Household mower and grass collection device with central cutter and self-adjusting height

technical field

The utility model relates to a device for maintaining domestic lawns, in particular to a domestic mowing and collecting device with a cutting knife in the middle and self-adaptive adjustment in height.

Background technique

With the improvement of people's living standards and aesthetic standards, people are increasingly recognizing the role of lawns in landscape layout and accommodation atmosphere. In particular, the process of industrialization has brought serious pollution, so green plants are becoming more and more popular in modern society. Therefore, lawns gradually show great advantages in areas close to urban life such as garden landscapes and community greening, and the number and area of lawns are constantly expanding. At the same time, the daily maintenance of the lawn has become an urgent problem to be solved, and the most tedious and important part is the mowing process.

Proper and timely mowing behavior not only makes the lawn neat and beautiful, but also allows the grass to grow and renew continuously and maintain good vitality. However, due to the continuous increase in the number and area of lawns, the cost of manual mowing is too high, which is not conducive to standardization. The use of lawn mowers can effectively solve these problems.

Lawn mowers play a very active and indispensable role in the maintenance of landscape lawns, family garden lawns, etc. However, on the one hand, the existing lawn mowers are mostly designed for large areas such as farms, so there are problems such as difficult collection of broken grass and need to cooperate with special machinery for follow-up processing, high cost, and scattered functions; on the other hand, traditional lawn mowers use diesel Or gasoline engine as power, factors such as high noise, high risk and non-environmental protection greatly limit the home use of lawn mowers. This urgently requires a lawn mower that is small in size, high in safety, low in noise and can handle broken grass autonomously.

Contents of the invention

The technical problem to be solved by the utility model is to provide a middle-mounted mowing and grass collecting device with a cutting knife that can be used for home use, has high mowing efficiency, simple device structure, and low mowing noise.

The technical solution adopted by the utility model to solve the problems of the technologies described above is:

The utility model comprises a terrain adaptive rear drive chassis assembly, a cutter, a column connecting rod, a column, a cutter motor, a cutter height adjustment assembly, a cutter angle adjustment assembly and a broken grass collection assembly; the terrain adaptive rear drive The chassis assembly includes a vehicle frame, a rear-drive hub motor, a front wheel and a rear wheel; the rear of the frame is hinged with two rear wheels, and the two rear wheels are respectively driven by two rear-drive hub motors; the front of the frame is hinged with Two tripods; three front wheels arranged in a triangle are hinged on the tripod; the frame is located between the front and rear wheels and is provided with post holes near the front wheels, and height adjustment slides are provided on both sides of the post holes. Road and angle adjustment slideway; the height adjustment assembly of the cutter includes a height adaptive wheel, a height adjustment sleeve, a height adjustment rod and a height return spring; the height adaptive wheel is hinged at the bottom of the height adjustment rod; the height adaptive wheel The center is higher than the center of the rear wheel; the height adjustment rod and the height adjustment slideway of the vehicle frame constitute a sliding pair, and the external thread at the top of the height adjustment rod is connected with the internal thread of the height adjustment sleeve; the height return spring Set on the height adjustment rod, the top end is against the bottom surface of the frame, and the bottom end is against the convex surface of the height adjustment rod; the height return spring is a compression spring; fixed; the column is perforated through the column of the vehicle frame, and the bottom of the column is hinged with the top of the motor mounting frame; the base of the cutter motor is fixed on the motor mounting frame; 3 to 5 blades fixed on the disc-shaped knife rest; the disc-shaped knife rest is fixed on the output shaft of the cutter motor; the lowest point of the cutter is higher than the lowest point of the height-adaptive wheel; The knife angle adjustment assembly includes an angle adjustment connecting rod, an angle adaptive wheel, a guide frame and an angle return spring; one end of the angle adjustment connecting rod is hinged with the bottom of the motor mounting frame, and the other end is hinged with the guide frame; the hinge angle at the bottom of the guide frame is from Adapt to the wheel; the guide frame and the angle adjustment slideway of the vehicle frame form a sliding pair; the angle return spring is sleeved on the guide frame, the top end is fixed to the convex surface of the guide frame, and the bottom end is fixed to the top surface of the vehicle frame; the angle return spring is a pull Stretching spring; the broken grass collection assembly includes a broken grass collection motor, a grass collection comb, a synchronous belt, a bracket, a disc, a broken grass collection connecting rod, a broken grass extrusion block and a grass collection box; the broken grass collection motor The base is fixed on the frame; the output shaft of the broken grass collection motor is fixed to the driving shaft; the driving shaft and the driven shaft are supported on the bracket through bearings, and the bracket is fixed on the frame; the driving gear and the driving pulley are fixed on On the driving shaft; the driving pulley is connected with the driven pulley fixed on the handle shaft of the grass comb through a timing belt; the driven gear and the disk are fixed on the driven shaft; the driving gear meshes with the driven gear; One end of the broken grass collection connecting rod is eccentrically hinged with the disc, and the other end is hinged with the broken grass extrusion block; the broken grass extrusion block and the extrusion slideway opened by the grass collection box form a sliding pair; the arc guide channel is placed The rear part of the cutter is fixed on the vehicle frame; the grass-collecting comb includes a comb handle shaft and 4n nail teeth welded on the comb handle shaft, and n takes a value from 3 to 6; 4n nail teeth, etc. Divided into n pieces along the axis of the comb handle The projections of the four nails in the nail group on the plane perpendicular to the axial direction of the comb shaft are uniformly distributed along the circumference; the comb shaft is supported on the bottom end of the arc guide channel through bearings, and the arc The top of the guide channel communicates with the extruding slideway of the grass collecting box.

Further, the blade of the cutter is bow-shaped; a cutter baffle is fixed on the blade.

Further, the top of the vehicle frame is provided with a detachably connected compartment.

Further, the grass collection box is provided with a detachable top cover.

Further, the four spikes in the spike set are located on four different cross-sections of the comb handle shaft.

Further, the rear drive hub motors, grass clipping motors and cutter motors are all powered by batteries.

Compared with the prior art, the utility model has the beneficial effects of:

1. Self-adaptive adjustment of knife height: Use the height-adaptive wheel fixed to the knife holder to achieve synchronous movement of the cutter and the height-adaptive wheel, so that the cutter will not touch the ground when it is on the top of the slope, and the mowing height is the same.

2. Adaptively adjust the angle of the cutter: When one side of the wheel is on a hillside and the other is on a level ground, use the gravity of the angle-adaptive wheel frame to sag and pull the cutter to the level through the angle adjustment connecting rod, so that the cutter is always at the Level state, solve the problem of uneven mowing.

3. Terrain self-adaptation: When driving to steps or pits, the rear power drive, combined with the front wheels arranged in a triangle, drives the tripod to turn over to achieve the purpose of climbing steps.

4. Self-handling of broken grass: After cutting the grass, the broken grass is lifted upward by the cyclone action of the rotating cutter and the blocking effect of the cutter baffle of the cutter, and then the grass collecting comb in the arc-shaped guiding channel rotates at high speed to remove the weeds from the grass. The bottom of the arc-shaped guide channel at the rear of the cutter is transported to the top, and then the broken grass extrusion block reciprocates to push the broken grass in the arc-shaped guide channel into the grass collection box to complete grass collection and compression.

5. Abandoning the traditional fuel engine and providing power through the motor, the noise is greatly reduced, thereby avoiding noise pollution to surrounding users; small size, high flexibility, and cleaner trimming; independent processing of broken grass, using centrifugal force, Collect the trimmed grass to avoid weeds becoming garbage after trimming, eliminating the need for secondary cleaning concerns. In addition, the cutting knife is placed at the bottom, which eliminates personal safety hazards.

Description of drawings

Fig. 1 is a perspective view of the overall structure of the utility model;

Fig. 2 is a structural perspective view of the utility model after removing the compartment;

Fig. 3 is the structural representation of parts at the bottom of the vehicle frame in the utility model;

Fig. 4 is the self-adaptive schematic diagram of the utility model when climbing steps;

Fig. 5 is the self-adaptive schematic diagram when the utility model is at the top of the slope;

Fig. 6 is a schematic diagram of self-adaptation of the utility model when traveling on a slope.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1, 2 and 3, the domestic mowing and grass collection device with the cutter placed in the middle and self-adaptive in height includes a terrain adaptive rear drive chassis assembly, a cutter 14, a column connecting rod 3, a column, and a cutter motor 16. Knife height adjustment assembly, cutter angle adjustment assembly and broken grass collection assembly; terrain adaptive rear drive chassis assembly includes vehicle frame 1, rear drive hub motor 9, front wheel 6 and rear wheel 10; the rear of vehicle frame 1 Two rear wheels are hinged, and the two rear wheels are respectively driven by two rear drive hub motors 9; two tripods are hinged at the front of the vehicle frame 1; three front wheels 6 arranged in a triangle are hinged on the tripod; The frame 1 is located between the front and rear wheels and is provided with a column perforation near the front wheel, and a height adjustment slideway and an angle adjustment slideway are respectively provided on both sides of the column perforation; the top of the frame 1 is provided with a compartment connected detachably; Knife height adjustment assembly comprises height adaptive wheel 12, height adjustment sleeve 2, height adjustment lever and height return spring 17; Height adaptive wheel 12 is hinged at the bottom of height adjustment lever; The center of height adaptive wheel 12 is higher than rear wheel center; the height adjustment rod and the height adjustment slideway of the vehicle frame 1 form a sliding pair, and the external thread at the top of the height adjustment rod is connected with the internal thread of the height adjustment sleeve 2; the height return spring 17 is sleeved on the height adjustment rod, and the top Hold against the bottom surface of the frame, and the bottom end is against the convex surface of the height adjustment rod; the two ends of the column connecting rod 3 are respectively fixed with the vertically arranged height adjustment sleeve 2 and the column; the column passes through the column perforation of the vehicle frame 1, and the bottom of the column Hinged with the top of the motor mount; the base of the cutter motor 16 is fixed on the motor mount; the cutter 14 includes a disc-shaped knife rest and three blades fixed on the disc-shaped knife rest evenly distributed along the circumference; the disc-shaped knife rest is fixed on the On the output shaft of cutter motor 16; the lowest point position of cutter 14 is higher than the lowest point position of height adaptive wheel 12; Angle return spring 19; one end of angle adjustment connecting rod 15 is hinged with the bottom of the motor mounting frame, and the other end is hinged with guide frame 7; the bottom of guide frame 7 is hinged with angle adaptive wheel 18; the angle adjustment slideway of guide frame 7 and vehicle frame 1 constitutes Sliding pair; Angle return spring 19 is sleeved on the guide frame 7, the top is fixed with the boss surface of guide frame 7, and the bottom end is fixed with the top surface of vehicle frame 1; Angle return spring 19 is a tension spring; Grass collection motor 4, grass collection comb 13, synchronous belt 20, support 5, disc 21, broken grass collection connecting rod 22, broken grass extrusion block 23 and grass collection box 8, the base of broken grass collection motor 4 is fixed on the car on the frame 1; the output shaft of the broken grass collection motor 4 is fixed to the driving shaft; the driving shaft and the driven shaft are all supported on the bracket 5 through bearings, and the bracket is fixed on the vehicle frame 1; the driving gear and the driving pulley are fixed on the driving on the shaft; the driving pulley is connected with the driven pulley fixed on the handle shaft of the grass collecting comb 13 through the timing belt 20; the driven gear and the disk 21 are all fixed on the driven shaft; the driving gear and the driven gear Engagement; one end of the broken grass collection connecting rod 22 is eccentrically hinged with the disc 21, and the other end is hinged with the broken grass extrusion block 23; the broken grass extrusion block 23 is connected with the grass collection box 8 The extruding chute constitutes a sliding pair; the grass collection box 8 is provided with a detachable top cover. The arc-shaped guide channel is placed at the rear part of the cutter 14, and is fixed on the vehicle frame 1; the grass collection comb 13 includes a comb handle shaft and 4n (n=5 in this embodiment) nail teeth welded on the comb handle shaft. ; 4n nail teeth are equally divided into n nail teeth groups that are equidistantly arranged along the axis of the comb handle axis, and the projections of the four nail teeth in the nail tooth group on a plane perpendicular to the axis of the comb handle axis are evenly distributed along the circumference The comb handle shaft is supported on the bottom end of the arc-shaped guide channel through bearings, and the top of the arc-shaped guide channel communicates with the extruding slideway of the grass collection box 8 .

Further, the four spikes in the spike set are located on four different cross-sections of the comb handle shaft.

Further, the blade of the cutter 14 is bow-shaped; a cutter baffle is fixed on the blade.

Further, rear drive hub motor 9, broken grass collection motor 4 and cutter motor 16 are all powered by battery 11.

The household mowing and collecting device with a central cutter and self-adaptive height adjustment works as follows:

Two rear-drive hub motors 9 respectively drive the two rear wheels, thereby driving the vehicle frame 1 to move forward, backward or turn; wherein, the steering is realized by the differential drive of the two rear-drive hub motors 9; when the vehicle frame 1 moves forward or turns, it is The triangular front wheels adapt to various steps or pits. The cutter motor 16 drives the cutter 14 to rotate to mow the grass, and the cut grass is lifted up by the cyclone action of the rotating cutter 14 and the blocking effect of the cutter baffle of the cutter, and then the grass collecting comb 13 in the arc-shaped guiding channel Rotate to transport the weeds from the bottom to the top of the arc-shaped guide channel at the rear of the cutter, and then the broken grass extrusion block 23 reciprocates to push the broken grass in the arc-shaped guide channel into the grass collection box 8 to complete grass collection and compression Wherein, the power of collecting grass comb 13 and broken grass extruding block 23 is all provided by broken grass collection motor 4, specifically: broken grass collection motor 4 drives driving gear and driving pulley through drive shaft; and the driven pulley drive the grass collecting comb 13 to rotate; the driving gear and the driven gear are engaged for transmission, thereby driving the driven gear and the disc 21 to rotate; the disc 21 drives the broken grass extrusion block 23 through the broken grass collecting connecting rod 22 reciprocating motion.

As shown in Figure 4, when the vehicle frame 1 travels to a step or a pit, the triangular front wheels drive the tripod to overturn, thereby crossing the step or pit; as shown in Figure 5, the vehicle frame 1 travels to a hillside At the top, the height-adaptive wheel 12 is pressed and the height adjustment lever is lifted, and the height return spring 17 is compressed; 14 synchronous lifting, so that the cutter will never hit the ground. As shown in Figure 6, when the vehicle frame 1 travels on a slope near the unilateral side of the height adaptive wheel 12, the vehicle body is inclined, and the guide frame 7 and the angle adaptive wheel 18 descend to Lower position than when being on flat ground, and the angle adaptive wheel 18 is always pressed against the ground; when the guide frame 7 descends, the angle adjustment connecting rod 15 hem is pulled, and the angle adjustment connecting rod 15 pulls the cutter 14 to the angle adaptive wheel 18, finally Make cutter 14 reach level. When the vehicle frame 1 was running on a horizontal plane, the angle adaptive wheel 18 was pressed against the ground all the time, and the cutting knife 14 was also in a horizontal state.

Claims (6)

1. set in cutter and height adaptive adjust household mowing grass catcher, including terrain self-adaptive rear-drive chassis component, Cutter, column connecting rod, column, cutter motor, cutter height adjustment assembly, cutter angular adjustment component and disconnected careless collection assembly, It is characterized by: the terrain self-adaptive rear-drive chassis component includes vehicle frame, rear-guard hub motor, front wheels and rear wheels；It is described Vehicle frame rear portion hingedly there are two rear-wheel, two rear-wheels are respectively driven by two rear-guard hub motors；There are two vehicle frame front is hinged Tripod；Three front-wheels of arrangement triangular in shape are hinged on tripod；Vehicle frame is between front and rear wheel and close to front wheel positions Column perforation is offered, and opens up height adjustment slideway and angular adjustment slideway respectively in column perforation two sides；The cutter Height adjustment assembly includes height adaptive wheel, height adjustment sleeve, height regulating rod and height reset spring；Height adaptive Wheel is articulated with height regulating rod bottom；The center of height adaptive wheel is higher than the center of rear-wheel；The height regulating rod and vehicle The height adjustment slideway of frame constitutes sliding pair, and the internal screw thread of the external screw thread on height regulating rod top and height adjustment sleeve connects It connects；The height reset spring is nested on height regulating rod, and top resists rack bottom surface, and bottom end resists height regulating rod Boss face；Height reset spring is compressed spring；Column connecting rod two end respectively with the height adjustment sleeve and column that are vertically arranged It is fixed；The column that the column passes through vehicle frame is perforated, hinged at the top of column bottom and motor mounting rack；The cutter motor Pedestal is fixed on motor mounting rack；The cutter includes dish type knife rest and is evenly distributed 3 be fixed on dish type knife rest ~5 blades；Dish type knife rest is fixed on the output shaft of cutter motor；The lowest point of cutter is higher than height adaptive wheel Lowest point；The cutter angular adjustment component includes that angular adjustment connecting rod, angle are adaptively taken turns, leading truck and angle are answered Position spring；One end and motor mounting rack bottom of the angular adjustment connecting rod are hinged, and the other end is hinged with leading truck；Leading truck bottom Portion's hinge angle is adaptively taken turns；The angular adjustment slideway of leading truck and vehicle frame constitutes sliding pair；Angle reset spring, which is nested with, is leading To on frame, the boss face of top and leading truck is fixed, and bottom end is fixed with top of frame；Angle reset spring is extension spring；Institute The disconnected grass collection assembly stated includes disconnected grass collection motor, collection grass comb, synchronous belt, bracket, disk, disconnected grass collection connecting rod, careless squeeze of breaking Briquetting and grass box；The pedestal that the disconnected grass collects motor is fixed on vehicle frame；Disconnected grass collects the output shaft and driving shaft of motor It is fixed；Driving shaft and driven shaft pass through bearing and are supported on bracket, and bracket is fixed on vehicle frame；Driving gear and driving pulley It is each attached on driving shaft；Driving pulley passes through synchronous band connection with the driven pulley on the comb handle axis for being fixed on collection grass comb；From Moving gear and disk are each attached on driven shaft；Driving gear is engaged with driven gear；Disconnected grass collects connecting rod one end and disk is inclined The heart is hinged, and the other end and disconnected careless crushing block are hinged；The extruding slideway that the disconnected careless crushing block and grass box open up, which is constituted, to be slided It is secondary；Arcuate guide channel is placed in cutter rear portion, and is fixed on vehicle frame；The collection grass comb includes comb handle axis and is welded on comb handle 4n spike-tooth composition on axis, n value in 3~6；4n spike-tooth is divided into the n spike-tooths axially equidistantly arranged along comb handle axis Group, projection of four spike-tooths in the plane perpendicular to comb handle axis axial direction is uniformly distributed along the circumference in spike-tooth group；Comb handle axis passes through bearing It is supported on arcuate guide channel bottom end, arcuate guide channel top is connected to the extruding slideway of grass box.

2. being set in cutter according to claim 1 and the household mowing grass catcher of height adaptive adjusting, feature existing In: the blade of cutter is arched；Cutter baffle is fixed on blade.

3. being set in cutter according to claim 1 and the household mowing grass catcher of height adaptive adjusting, feature existing In: the compartment being detachably connected is equipped at the top of the vehicle frame.

4. being set in cutter according to claim 1 and the household mowing grass catcher of height adaptive adjusting, feature existing In: the grass box is equipped with dismountable top cover.

5. being set in cutter according to claim 1 and the household mowing grass catcher of height adaptive adjusting, feature existing In: on four varying cross-sections that four spike-tooths are located at comb handle axis in spike-tooth group.

6. being set in cutter according to claim 1 and the household mowing grass catcher of height adaptive adjusting, feature existing In: rear-guard hub motor, disconnected grass collects motor and cutter motor is battery powered.