CN220528614U - Multifunctional grass mowing machine - Google Patents

Abstract

The utility model discloses a multifunctional grass trimmer, which comprises a handle rod, a motor seat, a driving motor, a motor output shaft, a cutting tool bit, a clearance tool bit for replacing the cutting tool bit and a cleaning tool bit for replacing the cutting tool bit, wherein the cutting tool bit comprises a first tool shell and blades connected to two sides of the first tool shell, the clearance tool bit comprises a second tool shell and a plurality of clearance brush strips connected to the periphery of the second tool shell, the cleaning tool bit comprises a third tool shell and a plurality of clearance brush strips connected to the periphery of the lower surface of the third tool shell, a clamping block is connected to the motor output shaft through a key, shaft holes for the motor output shaft to penetrate are formed in the centers of the first tool shell, the second tool shell and the third tool shell, clamping grooves for clamping blocks to be embedded into are formed in the positions of the upper sides of the first tool shell, the second tool shell and the third tool shell, threaded ends are formed in the lower ends of the motor output shaft, and positioning nuts are connected to the threaded ends.

Description

Multifunctional grass mowing machine

Technical Field

The utility model belongs to the technical field of grass mowers, and particularly relates to a multifunctional grass mowing machine.

Background

A grass cutter for cutting all hand-held tools for weeds in lawns, gardens, pastures and the like. The power source can be divided into oil power and electric power; the power head structure can be divided into front power and rear power.

At present, chinese patent with publication number of CN219165148U and publication date of 2023, 6 and 13 discloses a multifunctional grass trimmer, which comprises a machine head and a rod group, wherein the machine head comprises a grass blocking cover and a shell, the grass blocking cover is detachably provided with a grass trimming head, the grass trimming head is detachably replaced with a grass trimming rope and a saw blade, the shell is arranged on the grass blocking cover, and a lock shaft assembly is arranged in the shell; the lock shaft assembly comprises a locking piece which is slidably arranged in the shell, a motor is arranged in the shell, one end of a motor shaft of the motor is rotationally connected with the grass mowing head, the other end of the motor shaft of the motor is provided with an outwards extending linear lock head, and the linear lock head is positioned in the locking piece; when the grass mowing head is replaced, the locking piece is pushed to clamp the locking piece with the linear lock head of the motor, personal safety when a worker replaces tooling parts on the grass mowing head is effectively guaranteed, the grass mowing worker can conveniently find a proper angle to hold the rod group to perform grass mowing work by pushing the push-torsion tooth block adjusting rod group to incline the angle on the head of the grass mowing machine, and the limb fatigue degree of the worker is reduced.

After weeds are cut, operators also need to clean gaps between the ground and the floor tiles, but the grass trimmer does not have the capability of cleaning the gaps between the ground and the floor tiles, so that the operators need to clean the gaps between the ground and the floor tiles by using other tools, and finally, the weeding work is not less troublesome.

Disclosure of Invention

The utility model aims to provide a multifunctional grass trimmer which can clean gaps between the ground and floor tiles after a cutter head is replaced.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a multi-functional grass cutting machine, includes the handle pole, rotates the motor cabinet of connection in the handle pole lower extreme, sets up driving motor in the motor cabinet, upper end and driving motor are connected and the lower extreme wears out to the motor output shaft of motor cabinet downside, connects at motor output epaxial cutter head, still including being used for changing cutter head's clearance tool bit and being used for changing cutter head's clearance tool bit, cutter head includes first cutter housing, connects the blade in first cutter housing both sides, clearance tool bit includes second cutter housing, many connections in the clearance brush strip of second cutter housing week side, it includes third cutter housing, many connections in the clearance brush strip of the week side of third cutter housing lower surface to clean the tool bit, motor output shaft upper key-type is connected with the fixture block, the shaft hole that supplies motor output shaft to pass is all seted up to the center department of first cutter housing, second cutter housing and third cutter housing's upside and being located the position department in shaft hole has seted up the draw-in groove that supplies the motor output shaft to imbed, the lower extreme is provided with the screw thread end, the screw thread end is provided with threaded nut.

The utility model is further provided with: the motor also comprises a supporting head which is positioned at one end of the motor output shaft far away from the motor seat and is used for supporting on the ground, the supporting head comprises a headstock, a seat hole, a stepped groove, a bearing, a first check ring and a second check ring, wherein the lower surface of the headstock is of a spherical surface, the seat hole is formed in the center of the headstock and is penetrated by an output shaft of a power supply machine, the stepped groove is formed in the upper end of the seat hole, the bearing is embedded in the stepped groove, the first check ring is fixed on the upper surface of the headstock through a bolt and is pressed on an outer ring of the bearing, and the second check ring is sleeved on the output shaft of the motor and is pressed on an inner ring of the bearing through a positioning nut.

The utility model is further provided with: the support head also comprises an operation port arranged at the lower end of the seat hole and a protective cover embedded in the operation port, and the lower surface of the protective cover is also a sphere.

The utility model is further provided with: the lower sides of the first cutter shell, the second cutter shell and the third cutter shell are respectively provided with a positioning ring, and the peripheral side of the upper surface of the headstock is provided with a ring groove for embedding the positioning rings.

The utility model is further provided with: the second cutter shell comprises a first upper shell body positioned on the upper side, a first lower shell body positioned on the lower side of the first upper shell body, a plurality of first through holes formed in the periphery of the first upper shell body, a plurality of first internal thread sleeves arranged on the first lower shell body and corresponding to the plurality of first through holes, a plurality of first bolts arranged between the first upper shell body and the first lower shell body and penetrating through the first through holes and then in the first internal thread sleeves in a threaded manner, and a first mounting groove formed in the first lower shell body and used for being embedded after the middle part of the slit cleaning brush strip is bent.

The utility model is further provided with: the third cutter shell comprises a second upper shell body positioned at the upper side, a second lower shell body positioned at the lower side of the second upper shell body, a plurality of second through holes formed in the periphery of the second upper shell body, a plurality of second internal thread sleeves arranged on the second lower shell body and corresponding to the plurality of second through holes, a plurality of second bolts arranged between the second upper shell body and the second lower shell body and penetrating through the second through holes and then being in threaded connection with the second internal thread sleeves, and second mounting grooves formed in the second lower shell body and used for being embedded after the middle part of the cleaning brush strip is bent.

In summary, the utility model has the following beneficial effects:

1. the motor output shaft is embedded into the clamping groove of the first cutter shell, the second cutter shell or the third cutter shell by utilizing the clamping block, so that the motor output shaft drives the first cutter shell, the second cutter shell or the third cutter shell to rotate when rotating;

when the seam cleaning tool bit is needed to be replaced so as to clean sundries in the seam of the floor tile, the positioning nut is unscrewed, then the cutting tool bit can be detached along the motor output shaft, then the shaft hole on the second tool shell of the seam cleaning tool bit can be penetrated by the motor output shaft, and then the positioning nut is in threaded connection with the threaded end, so that the seam cleaning tool bit can be installed on the motor output shaft, and finally the seam cleaning brush bar on the peripheral side of the second tool shell can be utilized to clean the seam of the floor tile after rotating;

when the cleaning tool bit is needed to be replaced so as to clean sundries on the ground surface, the positioning nut is unscrewed, then the cutting tool bit can be detached along the motor output shaft, then the shaft hole on the third tool shell of the cleaning tool bit can be penetrated by the motor output shaft, and then the positioning nut is connected to the threaded end in a threaded manner, so that the cleaning tool bit can be installed on the motor output shaft, and finally the cleaning brush bar on the peripheral side of the lower surface of the third tool shell can be utilized to clean the ground surface after rotating;

2. the motor output shaft penetrates through the seat hole of the head seat, the first check ring and the second check ring are respectively pressed on the upper side edge and the lower side edge of the peripheral side, the head seat can be rotationally connected to the lower end of the motor output shaft, and finally the motor output shaft can be supported on the ground through the supporting head, so that the grass cutting machine can work stably on the ground, and abrasion of the motor output shaft after contacting the ground is avoided;

3. when the positioning nut needs to be screwed, the protective cover in the operation opening is pulled out to expose the positioning nut in the operation opening; the peripheral side of the positioning nut can be wrapped through the protective cover, so that the peripheral side of the positioning nut is prevented from entering external sundries;

4. the headstock is embedded by the positioning ring at the lower side of the first cutter shell, the second cutter shell or the third cutter shell by utilizing the annular groove, so that the stable installation of the headstock is facilitated;

5. the first lower shell and the first upper shell are fixedly connected by a first bolt after being spliced, and the slit cleaning brush strip can be stably embedded into the first mounting groove at the moment, so that the detachable connection of the slit cleaning brush strip on the second cutter shell can be realized, and the slit cleaning brush strip is convenient to replace;

6. the second lower shell is fixedly connected with the second upper shell through the second bolt after being spliced, and the cleaning brush strip can be stably embedded into the second mounting groove, so that the cleaning brush strip can be detachably connected on the third cutter shell, and the cleaning brush strip can be conveniently replaced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a partial exploded view of the connection between the drive motor, the cutting bit, the clearance bit, the cleaning bit and the support head of the present utility model;

FIG. 3 is an exploded view of the structure of the joint cleaning tool bit of the present utility model;

FIG. 4 is an exploded view of the structure of the cleaning head of the present utility model;

FIG. 5 is a partial cross-sectional view of a cutting bit according to the present utility model;

fig. 6 is a cross-sectional view of the structure of the support head of the present utility model.

In the figure, 1, a handle rod; 2. a motor base; 21. a driving motor; 22. an output shaft of the motor; 221. a clamping block; 222. a threaded end; 223. positioning a nut; 3. a cutter head; 31. a first cutter housing; 32. a blade; 4. a joint cleaning tool bit; 41. a second cutter housing; 411. a first upper case; 412. a first lower housing; 413. a first through hole; 414. a first female threaded sleeve; 415. a first bolt; 416. a first mounting groove; 42. cleaning a slit brush strip; 5. cleaning a cutter head; 51. a third cutter shell; 511. a second upper case; 512. a second lower case; 513. a second through hole; 514. a second female threaded sleeve; 515. a second bolt; 516. a second mounting groove; 52. cleaning brush strips; 6. a shaft hole; 7. a clamping groove; 8. a support head; 81. a head seat; 82. a seat hole; 83. a stepped groove; 84. a bearing; 85. a first retainer ring; 86. the second check ring; 87. an operation port; 88. a protective cover; 9. a positioning ring; 10. and a ring groove.

Detailed Description

The technical solutions in the embodiments will be clearly and completely described below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

Referring to fig. 1 and 2, the multifunctional grass trimmer comprises a handle rod 1, a motor base 2, a driving motor 21, a motor output shaft 22, a cutting tool bit 3, a joint cleaning tool bit 4, a cleaning tool bit 5 and a supporting head 8, wherein the handle rod 1 is held by a person, the motor base 2 is rotationally connected to the lower end of the handle rod 1, meanwhile, the driving motor 21 is installed in the motor base 2 through a bolt, the upper end of the motor output shaft 22 is connected with the driving motor 21, and the lower end of the motor output shaft 22 penetrates out to the lower side of the motor base 2, wherein the cutting tool bit 3, the joint cleaning tool bit 4 and the cleaning tool bit 5 are alternately connected to the motor output shaft 22, so that the cutting tool bit 3, the joint cleaning tool bit 4 or the cleaning tool bit 5 are driven to rotate by the motor output shaft 22, and finally different functions can be realized through the cutting tool bit 3, the joint cleaning tool bit 4 and the cleaning tool bit 5; and the supporting head 8 is positioned at one end of the motor output shaft 22 away from the motor base 2 and is used for supporting on the ground.

Referring to fig. 2 and 3, the cutter head 3 is used for cutting weeds, and the cutter head 3 comprises a first cutter shell 31 and blades 32 fixedly connected to two sides of the first cutter shell 31 through bolts; the joint cleaning tool bit 4 is used for cleaning the gaps of the floor tiles, and the joint cleaning tool bit 4 comprises a second cutter shell 41 and a plurality of joint cleaning brush strips 42 connected to the periphery of the second cutter shell 41; meanwhile, the second cutter housing 41 comprises a first upper housing 411, a first lower housing 412, a first through hole 413, a first internal thread sleeve 414, a first bolt 415 and a first mounting groove 416, wherein the first upper housing 411 is located at the upper side, the first lower housing 412 is located at the lower side, the first upper housing 411 and the first lower housing 412 can be spliced together up and down, the first through hole 413 is formed in the peripheral side of the first upper housing 411 and is uniformly distributed at intervals along the peripheral side of the first upper housing 411, a plurality of first through holes 413 are integrally formed in the peripheral side of the first lower housing 412 and correspond to the plurality of first through holes 413 respectively, the first bolt 415 is also provided with a plurality of first bolts 415 and is in threaded connection with the first internal thread sleeve 414 after penetrating through the first through holes 413, and the first mounting groove 416 is formed in the first lower housing 412 and is used for embedding after the middle part of the clearance brush bar 42 is bent.

Referring to fig. 2 and 4, the cleaning head 5 is used for cleaning a floor surface, the cleaning head 5 includes a third cutter housing 51, a plurality of cleaning brush strips 52 connected to a lower surface of the third cutter housing 51, the third cutter housing 51 includes a second upper housing 511, a second lower housing 512, a second through hole 513, a second internal thread bush 514, a second bolt 515, and a second mounting groove 516, wherein the second upper housing 511 is located at an upper side and the second lower housing 512 is located at a lower side, the second upper housing 511 and the second lower housing 512 can be spliced together up and down, the second through hole 513 is formed at a periphery of the second upper housing 511 and is uniformly distributed at intervals along a periphery of the second upper housing 511, the second internal thread bush 514 is integrally formed at a periphery of the second lower housing 512 and corresponds to the plurality of second through holes 513, and the second bolt 515 is also formed to be threaded into the second internal thread bush 514 after passing through the second through hole 513, wherein the second mounting groove 516 is formed at a periphery of the second lower housing 512 for being bent and embedded in the cleaning brush strips 52.

Referring to fig. 2, 5 and 6, the motor output shaft 22 is connected with a clamping block 221 by a key, and the centers of the first cutter shell 31, the second cutter shell 41 and the third cutter shell 51 are respectively provided with a shaft hole 6 for the motor output shaft 22 to pass through, wherein the upper sides of the first cutter shell 31, the second cutter shell 41 and the third cutter shell 51 are respectively provided with a clamping groove 7 for the clamping block 221 to be embedded in at the position of the shaft hole 6, the lower end of the motor output shaft 22 is integrally provided with a threaded end 222, and the threaded end 222 is connected with a positioning nut 223 by threads.

Referring to fig. 2, 5 and 6, the supporting head 8 includes a head seat 81, a seat hole 82, a stepped slot 83, a bearing 84, a first retainer ring 85, a second retainer ring 86, an operation opening 87 and a protection cover 88, wherein the lower surface of the head seat 81 is a sphere, the seat hole 82 is formed at the center of the head seat 81 and the power supply output shaft 22 passes through, the stepped slot 83 is formed at the upper end of the seat hole 82, the bearing 84 is embedded in the stepped slot 83, the first retainer ring 85 is fixed at the upper surface of the head seat 81 by a bolt, the inner ring of the first retainer ring 85 is pressed at the outer ring of the periphery, the second retainer ring 86 is sleeved on the motor output shaft 22 and is pressed by a positioning nut 223, and at the moment, the outer ring of the second retainer ring 86 is abutted against the inner ring of the bearing 84; wherein the operation opening 87 is opened at the lower end of the seat hole 82, the protection cover 88 is embedded in the operation opening 87, and the lower surface of the protection cover 88 is also a sphere; meanwhile, the lower sides of the first cutter housing 31, the second cutter housing 41 and the third cutter housing 51 are uniformly provided with the positioning ring 9, and the peripheral side of the upper surface of the head seat 81 is provided with the ring groove 10 into which the positioning ring 9 is embedded.

Principle of: when the upper joint cleaning tool bit 4 needs to be replaced to clean sundries in the floor tile gaps, the protective cover 88 is opened, the positioning nut 223 is unscrewed to detach the supporting head 8, then the cutting tool bit 3 can be detached along the motor output shaft 22, the shaft hole 6 on the second tool shell 41 of the joint cleaning tool bit 4 can be penetrated through the motor output shaft 22, the positioning nut 223 is in threaded connection with the threaded end 222, at the moment, the installation of the joint cleaning tool bit 4 on the motor output shaft 22 can be completed, and finally the floor tile gaps can be cleaned after the joint cleaning brush strips 42 on the periphery of the second tool shell 41 are rotated.

When the cleaning tool bit 5 needs to be replaced to clean sundries on the ground surface, the protective cover 88 is opened, the positioning nut 223 is unscrewed to detach the supporting head 8, then the cutting tool bit 3 can be detached along the motor output shaft 22, the shaft hole 6 on the third tool shell 51 of the cleaning tool bit 5 can be penetrated by the motor output shaft 22, the positioning nut 223 is connected to the threaded end 222 in a threaded mode, at the moment, the cleaning tool bit 5 can be installed on the motor output shaft 22, and finally the cleaning brush strip 52 on the periphery side of the lower surface of the third tool shell 51 can be used for cleaning the ground surface after rotating.

The power supply output shaft 22 passes through the seat hole 82 of the head seat 81, wherein the first check ring 85 and the second check ring 86 are respectively pressed at the upper side and the lower side of the periphery, the head seat 81 can be rotationally connected at the lower end of the motor output shaft 22 at the moment, and finally the motor output shaft can be supported on the ground through the supporting head 8, so that the grass cutting machine can work stably on the ground, and abrasion of the motor output shaft 22 after contacting the ground is avoided.

Claims (6)

1. The utility model provides a multi-functional grass trimmer, includes handle pole (1), rotates motor cabinet (2) of connection in handle pole (1) lower extreme, sets up driving motor (21) in motor cabinet (2), upper end and driving motor (21) are connected and the lower extreme wears out motor output shaft (22) to motor cabinet (2) downside, connects cutting tool bit (3) on motor output shaft (22), its characterized in that: still including being used for changing clearance tool bit (4) of cutting tool bit (3) and being used for changing clearance tool bit (5) of cutting tool bit (3), cutting tool bit (3) are including first cutter housing (31), connect blade (32) in first cutter housing (31) both sides, clearance tool bit (4) include second cutter housing (41), many connections are in clearance brush strip (42) of second cutter housing (41) week side, clearance tool bit (5) include third cutter housing (51), many connections are in clearance brush strip (52) of the week side of third cutter housing (51) lower surface, motor output shaft (22) go up key connection have fixture block (221), shaft hole (6) that supply motor output shaft (22) to pass are all seted up in the center department of first cutter housing (31), second cutter housing (41) and third cutter housing (51), the upside of first cutter housing (51) and be located the position department of shaft hole (6) and supply motor output shaft (221) to open draw-in groove (222), threaded end (222) are connected to screw thread location nut (222).

2. A multi-function grass trimmer according to claim 1 wherein: still including being located motor output shaft (22) and keeping away from motor cabinet (2) one end department and being used for supporting on subaerial supporting head (8), supporting head (8) are including headstock (81) that the lower surface is the sphere, offer seat hole (82) that seat hole (82) upper end are offered in the center department and power supply motor output shaft (22) pass, offer step groove (83) in seat hole (82), bearing (84) of embedding in step groove (83), fix in headstock (81) upper surface department and compress tightly first retaining ring (85) in bearing (84) outer lane department through the bolt, cover establish on motor output shaft (22) and supply set nut (223) to compress tightly second retaining ring (86) in bearing (84) inner circle department with it.

3. A multi-function grass trimmer according to claim 2 wherein: the support head (8) further comprises an operation port (87) formed at the lower end of the seat hole (82) and a protective cover (88) embedded in the operation port (87), and the lower surface of the protective cover (88) is a sphere.

4. A multi-function grass trimmer according to claim 2 wherein: the lower sides of the first cutter shell (31), the second cutter shell (41) and the third cutter shell (51) are respectively provided with a positioning ring (9), and the peripheral side of the upper surface of the head seat (81) is provided with a ring groove (10) for embedding the positioning rings (9).

5. A multi-function grass trimmer according to claim 1 wherein: the second cutter shell (41) comprises a first upper shell (411) located on the upper side, a first lower shell (412) located on the lower side of the first upper shell (411), a plurality of first through holes (413) formed in the periphery of the first upper shell (411), a plurality of first inner thread sleeves (414) arranged on the first lower shell (412) and corresponding to the plurality of first through holes (413), a plurality of first bolts (415) which are arranged between the first upper shell (411) and the first lower shell (412) and penetrate through the first through holes (413) to be connected in the first inner thread sleeves (414) in a threaded mode, and first mounting grooves (416) formed in the first lower shell (412) and used for being embedded after the middle portion of the slit-cleaning brush strip (42) is bent.

6. A multi-function grass trimmer according to claim 1 wherein: the third cutter shell (51) comprises a second upper shell (511) located on the upper side, a second lower shell (512) located on the lower side of the second upper shell (511), a plurality of second through holes (513) formed in the periphery of the second upper shell (511), a plurality of second inner thread sleeves (514) arranged on the second lower shell (512) and corresponding to the plurality of second through holes (513), a plurality of second bolts (515) which are arranged between the second upper shell (511) and the second lower shell (512) and penetrate through the second through holes (513) to be connected in the second inner thread sleeves (514) in a threaded mode, and second mounting grooves (516) formed in the second lower shell (512) and used for being embedded after the middle of the cleaning brush strip (52) is bent.