CN219165148U - Multifunctional grass mowing machine - Google Patents

Abstract

The utility model provides a multifunctional grass cutting machine which comprises a machine head and a rod group, wherein the machine head comprises a grass blocking cover and a shell, a grass cutting head is detachably arranged on the grass blocking cover, a grass cutting rope and a saw blade are detachably replaced on the grass cutting head, 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.

Description

Multifunctional grass mowing machine

Technical Field

The utility model relates to the field of garden tools, in particular to a multifunctional grass mowing machine.

Background

The grass cutting machine is a garden tool, and is a necessary article for urban greening and park district weeding. Chinese patent document CN209994882U discloses a grass cutting head and a grass cutting machine, the grass cutting head comprising: a spool and a head housing; the spool is provided with a winding part for winding the straw rope, and the head shell surrounds a cavity for accommodating at least part of the spool; the grass cutting head is also provided with a winding mode, and when the grass cutting head is in the winding mode, the grass cutting rope is wound on the winding part; the grass cutting head also comprises: when the grass mowing rope is wound on the winding part, a pretightening force is applied to the grass mowing rope, and the pretightening device is used for tensioning the grass mowing rope and winding the grass mowing rope on the winding part;

because the grass cutting machine is used for manually holding the handle rod group to perform grass cutting treatment, when the handle rod group connected with the grass cutting head cannot be adjusted, grass cutting staff can work in a handheld posture for a long time, the limb fatigue degree of the staff is definitely increased, the grass cutting efficiency is reduced, and when the grass cutting machine is used for cutting thick branches, grass cutting ropes or saw blades on the grass cutting head need to be replaced, and when the grass cutting head saw blades or the grass cutting ropes are replaced, the risk that the staff is damaged due to sudden rotation of a motor can exist; therefore, in order to reduce the risk coefficient of changing the grass cutting head and adjust the handle rod group of the grass cutting head to reduce the fatigue degree of grass cutting personnel, a multifunctional grass cutting machine is provided, so as to solve the problems.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to solve the problem of providing a multifunctional grass trimmer so as to overcome the defects in the prior art.

(II) technical scheme

In order to solve the technical problems, the utility model provides 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 shell is arranged on the grass blocking cover, and a lock shaft assembly is arranged in the shell; the grass-mowing head is arranged on the inner side of the shell, and is connected with the grass-mowing head in a sliding manner; when the grass cutting head is replaced, the locking piece is pushed to clamp the locking piece and the linear lock head, the grass cutting head can be detached and replaced with the grass cutting rope and the saw blade, when the grass cutting rope or the saw blade on the grass cutting head is replaced, the locking piece is pushed to the inside of the shell, the locking piece pushes the self-locking switch connected with one end of the self-locking switch, under the locking effect of the self-locking switch, the linear hole in the lock hole on the locking piece is clamped with the linear lock head of the motor, the motor shaft of the motor is limited and cannot rotate, the locking piece achieves the effect of locking the motor shaft, the personal safety when the grass cutting head tool part is replaced by a worker is further guaranteed, the grass cutting head is limited and cannot rotate, the grass cutting rope and the saw blade on the grass cutting head are also convenient to replace, when the grass cutting head tool part is replaced, the self-locking piece is pushed again to be in operation, the self-locking piece is restored to be in the original position under the rebound force of the switch, the linear lock head of the motor is located in the round hole of the lock head, the motor is limited, and the motor can be operated after the grass cutting head is replaced, and the grass cutting machine is limited.

Further, be provided with the internal baffle in the fender grass cover, the mounting groove has been seted up to the one end of internal baffle, install the cutting knife that sets up along fender grass cover axial in the mounting groove, the cutting knife is used for the distance cutting the rope of beating grass, when starting the machine of beating grass at every turn, the unnecessary rope head that the rope of beating grass thrown away under centrifugal force effect is cut off when passing through cutting knife department, avoids beating the rope and takes place the rope condition of card on the fender grass cover.

Further, an adjusting component is connected between the rod group and the machine head and comprises an adjusting piece arranged on the rod group, and the adjusting piece and the shell can be adjusted in a relative rotation mode. The grass-mowing machine is characterized in that a pushing tooth block is slidably arranged in the shell, a spring is connected to the pushing tooth block, a first annular gear meshed with the pushing tooth block is arranged in the adjusting piece, a second annular gear meshed with the pushing tooth block is arranged on the shell, when the adjusting rod group is required to incline at an angle on the grass-mowing machine head, the pushing tooth block is pushed into the adjusting piece, at the moment, the pushing tooth block applies pressure to the spring, the outer tooth part of the pushing tooth block slides away from the second annular gear and slides to one side of the first annular gear, after the outer tooth part of the pushing tooth block completely leaves the second annular gear, the inclination angle of the adjusting rod group on the grass-mowing machine head can be adjusted, after the angle adjustment of the rod group is finished, the pushing force on the pushing tooth block is released, the pushing tooth block is rebounded to the second annular gear under the rebound force of the spring, at the moment, one part of the outer tooth part of the pushing tooth block is positioned on the first annular gear, and the other part of the pushing tooth block is positioned on the second annular gear, so that the inclination angle of the adjusting piece and the rod group is fixed, at the moment, the outer tooth part of the adjusting piece is convenient for grass-mowing personnel to find a proper angle, hold the rod group, and work can be done for long-time, and fatigue of the grass-mowing personnel is reduced.

Further, the adjusting piece comprises a first sleeve piece and a second sleeve piece, the shell comprises a first shell cover and a second shell cover, a limiting block is arranged on the second shell cover, a limiting groove is formed in the second sleeve piece, the limiting block slides in the limiting groove, and the limiting block limits the inclination degree of the rod group on the grass cutting machine head, so that the rod group and the grass cutting machine head are in a reasonable angle adjusting range; the second annular gear is arranged on the first shell cover, the first annular gear is arranged on the first sleeve member, and the spring is positioned between the push-torsion tooth block and the abutting wall of the second sleeve member.

Further, be provided with first spout on the first shell, be provided with the second spout on the second shell, first spout and second spout form the locked groove, the locking piece slides in the locked groove, the one end of locking piece is provided with the push head, the lockhole has been seted up at the locking piece middle part, the lockhole includes a style of calligraphy hole and round hole, be connected with self-locking switch between the other end of locking piece and the second spout, the style of calligraphy tapered end of motor is located the lockhole of locking piece.

Further, install the connecting piece between fender grass cover and the shell, be provided with the step on the connecting piece, the step department at the connecting piece is installed in the conflict of the bottom of shell, the cooperation is formed with the transmission chamber between connecting piece and the shell, the transmission intracavity is provided with the installation shell, the motor is installed in the installation shell, bilateral symmetry is provided with circular slot and lug and backing plate on the connecting piece, the circular slot is articulated to have the protection frame, protection frame and lug sliding connection, the backing plate is spacing to the protection frame, the outside limit of protection frame is greater than the diameter of saw bit, and the setting of protection frame has further ensured grass cutting personnel's safety.

Further, the grass blocking cover is detachably connected with the connecting piece, the flange is arranged on the grass blocking cover, the T-shaped groove and the clamping groove are formed in the flange, the handle is arranged at the side end of the flange, the T-shaped block and the clamping block are arranged at one end of the connecting piece, the T-shaped block is slidably connected with the T-shaped groove, the clamping block is connected with the clamping groove in a clamping manner, and the grass blocking cover is quickly assembled and disassembled by holding the handle and the connecting piece, so that the grass mower can be conveniently assembled, disassembled and overhauled. Install the pulley on the fender grass cover, the pulley can make the aircraft nose of beating grass pass the work of beating grass by the staff of beating grass, compares traditional some and carry the aircraft nose of beating grass of carrying, and this grass beating machine need not to carry the aircraft nose of beating grass machine always and carries out the work of beating grass, has saved the physical expenditure of staff of beating grass, has also reduced the limbs fatigue degree of staff of beating grass.

Further, the pole group is including detachable first connecting rod and second connecting rod and handle of connection, second connecting rod and regulating part fixed connection, be provided with first button and second button and liquid crystal display on the handle, be connected with the battery on the handle, the battery provides the power energy for the motor, and first button is the grass cutting mode control key of grass cutting machine, and the second button is the saw bit mode control key of grass cutting machine, and liquid crystal display shows the battery electric quantity information and the mode of use of grass cutting machine.

(III) beneficial effects

Compared with the prior art, the multifunctional grass trimmer provided by the utility model has the following beneficial effects;

1. according to the utility model, the external tooth part of the push button tooth block slides away from the second annular gear and slides to one side of the first annular gear by pushing the push button tooth block into the adjusting piece, so that the adjusting piece can rotate on the shell after the external tooth part of the push button tooth block completely leaves the second annular gear, and the inclination angle of the adjusting rod group on the grass cutting machine head is convenient for grass cutting staff to find a rod group holding mode suitable for the grass cutting staff, and the limb fatigue degree of the grass cutting staff is effectively reduced when long-time grass cutting operation is carried out.

2. When the grass mowing rope or the saw blade on the grass mowing head is replaced, the locking piece is pushed into the shell and matched with the self-locking switch, and under the locking action of the self-locking switch, the linear hole in the lock hole on the locking piece is clamped with the linear lock head of the motor, so that the motor shaft of the motor cannot rotate, the locking piece achieves the effect of locking the motor shaft, and the personal safety of workers when the tool parts of the grass mowing head are replaced is further guaranteed.

3. According to the grass cutting machine, when the grass cutting machine is started each time, redundant rope heads thrown out by the grass cutting rope under the action of centrifugal force are cut off when the grass cutting rope passes through the cutting knife, so that the condition that the grass cutting rope is clamped on the grass blocking cover is avoided.

Drawings

FIG. 1 is a first perspective view of a multifunctional grass trimmer of the present utility model;

FIG. 2 is a second perspective view of a multifunctional grass trimmer according to the present utility model;

FIG. 3 is an exploded view of a multifunctional grass trimmer of the present utility model;

FIG. 4 is a schematic view of a grass blocking cover of the multifunctional grass trimmer of the present utility model;

FIG. 5 is a schematic view of a connecting plate of the multifunctional grass trimmer of the present utility model;

FIG. 6 is a schematic view of a connecting plate of the multifunctional grass trimmer of the present utility model;

FIG. 7 is a schematic view showing the steps of installing a connector and a grass shield of the multifunctional grass trimmer of the present utility model;

FIG. 8 is a schematic view of a transmission assembly of a multi-function mower of the present utility model;

FIG. 9 is an enlarged schematic view of the multifunctional grass trimmer of the present utility model at A in FIG. 8;

FIG. 10 is a schematic diagram showing the connection of the connector of the multifunctional grass trimmer with the motor and the mounting shell;

FIG. 11 is an exploded view of a handle adjustment assembly of the multi-function mower of the present utility model;

FIG. 12 is an exploded view of a handle adjustment assembly of the multi-function mower of the present utility model;

FIG. 13 is a partial cross-sectional view of a handle adjustment assembly of the multi-functional mower of the present utility model;

FIG. 14 is a schematic view of a lock shaft member of a multifunctional grass trimmer according to the present utility model;

FIG. 15 is a schematic view of a lock shaft assembly of a multifunctional grass trimmer according to the present utility model;

FIG. 16 is an enlarged schematic view of the multifunctional grass trimmer of the present utility model at B in FIG. 15;

FIG. 17 is a schematic view of a handle structure of a multifunctional grass trimmer of the present utility model;

the corresponding component names for each reference number in the figures are:

1. a grass shield; 102. a flange; 103. a T-shaped groove; 104. a clamping groove; 105. a handle; 106. an inner baffle; 107. a mounting groove; 108. a cutting knife;

2. a connecting piece; 201. a transmission cavity; 202. a step; 203. a circular groove; 204. a bump; 205. a backing plate; 206. a T-shaped block; 207. a clamping block;

3. a protective frame; 4. a mounting shell; 5. a motor; 501. a straight lock; 6. grass cutting head; 601. beating grass ropes; 7. a locking member; 701. pushing heads; 702. a lock hole; 703. a self-locking switch;

8. a housing; 801. a first housing; 8011. a second ring gear; 8012. a first chute; 8013. a push button tooth block; 8014. a spring; 802. a second housing; 8021. a limiting block; 8022. a second chute;

9. an adjusting member; 901. a first set; 9011. a first ring gear; 902. a second set; 9021. abutting against the wall; 9022. a limit groove;

10. a rod group; 1011. a first connecting rod; 1012. a second connecting rod; 11. a handle; 12. a first key; 13. a second key; 14. a liquid crystal display; 15. and (5) a saw blade.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 3 and 8 to 16, the present utility model provides a multifunctional grass trimmer comprising a machine head and a rod set 10, wherein the machine head comprises a grass blocking cover 1 and a housing 8, the grass blocking cover 1 is detachably provided with a grass trimming head 6, the housing 8 is arranged on the grass blocking cover 1, and a lock shaft assembly is arranged in the housing 8; the lock shaft assembly comprises a locking piece 7 which is slidably arranged in a shell 8, a motor 5 is arranged in the shell 8, one end of a motor shaft of the motor 5 is rotationally connected with a grass cutting head 6, an outwards extending linear lock head 501 is arranged at the other end of the motor shaft of the motor 5, the linear lock head 501 is positioned in the locking piece 7, and when the grass cutting head 6 is replaced, the locking piece 7 is pushed to clamp the locking piece 7 with the linear lock head 501;

the grass cutting head 6 is detachably replaced with the grass cutting rope 601 and the saw blade 15, the first shell cover 801 is provided with the first sliding groove 8012, the second shell cover 802 is provided with the second sliding groove 8022, the first sliding groove 8012 and the second sliding groove 8022 form a locking groove, the locking piece 7 slides in the locking groove, one end of the locking piece 7 is provided with the push head 701, the middle part of the locking piece 7 is provided with the lock hole 702, the lock hole 702 comprises a straight-shaped hole and a round hole, the other end of the locking piece 7 and the second sliding groove 8022 are connected with the self-locking switch 703, the straight-shaped lock head 501 of the motor 5 is located in the lock hole 702 of the locking piece 7, when the grass cutting rope 601 or the saw blade 15 on the grass cutting head 6 is replaced, the locking piece 7 is pushed into the shell 8, the locking piece 7 is pushed into the self-locking switch 703 connected with one end of the second sliding groove 8022, the straight-shaped hole in the locking piece 7 is locked with the straight-shaped hole 501 of the motor 5 under the locking action of the self-locking switch 703, the straight-shaped hole of the motor shaft 501 can not rotate, the motor shaft 7 of the motor 5 can not rotate, the straight-shaped lock head 501 of the motor shaft 7 can not rotate, the straight-shaped lock head 501 can not be further locked by the motor shaft 7 when the motor shaft 7 is located in the round hole of the lock piece 5, the straight-shaped lock head is further replaced with the straight-shaped groove 7, the side of the grass cutting rope is further, the side of the grass cutting piece is replaced by the straight-shaped blade 7, the straight-shaped blade is located in the straight-shaped groove 7, the straight-shaped groove is further, the front, the straight-shaped body 7 can be conveniently, the work can be conveniently and the high in the work, and the safety, and the work, and the front, the work can be conveniently and the like.

Referring to fig. 1 to 3 and 11 to 13, an adjusting assembly is connected between the rod set 10 and the handpiece, and the adjusting assembly includes an adjusting member 9 mounted on the rod set 10, and the adjusting member 9 and the housing 8 can be adjusted in a rotatable manner. The push button tooth block 8013 is slidably mounted in the casing 8, the spring 8014 is connected to the push button tooth block 8013, a first annular gear 9011 meshed with the push button tooth block 8013 is arranged in the regulating piece 9, a second annular gear 8011 meshed with the push button tooth block 8013 is arranged on the casing 8, when the regulating piece 10 is required to be inclined at an angle on the grass cutting machine head, the push button tooth block 8013 is pushed into the regulating piece 9, at the moment, the push button tooth block 8013 applies pressure to the spring 8014, the outer tooth part of the push button tooth block 3 slides away from the second annular gear 8011 and slides to one side of the first annular gear 8011, after the outer tooth part of the push button tooth block 8013 is completely separated from the second annular gear 8011, the inclination angle of the regulating piece 10 on the grass cutting machine head can be regulated, after the angle regulation of the rod set 10 is completed, the push button tooth block 8013 is released, at the position of the second annular gear 8011 under the action force of the spring 8014, at the moment, a part of the outer tooth part of the push button tooth block 3 is positioned on the first annular gear 8011, the other part of the second annular gear 8011 is positioned on the inner tooth block 8011, the other part of the second annular gear is positioned on the inner gear 8011, the long-time fatigue of the grass cutting piece is reduced, and the human body is convenient to find out, and the working personnel is convenient to work, and the working fatigue of the human body is realized, and the human body is in a long-time of the human body is realized.

Referring to fig. 3 and 10 to 13, the adjusting member 9 includes a first sleeve 901 and a second sleeve 902, the housing 8 includes a first housing 801 and a second housing 802, a limiting block 8021 is provided on the second housing 802, a limiting groove 9022 is provided on the second sleeve 902, the limiting block 8021 slides in the limiting groove 9022, and the limiting block 8021 limits the inclination degree of the adjusting member 9 and the rod set 10 on the grass cutting machine head, so that the rod set 10 and the grass cutting machine head are in a reasonable angle adjusting range; the second ring gear 8011 is disposed on the first housing 801, the first ring gear 9011 is disposed on the first sleeve 901, and the spring 8014 is located between the push button block 8013 and the abutment wall 9021 of the second sleeve 902.

Referring to fig. 8 to 9, an inner baffle 106 is disposed in the grass blocking cover 1, a mounting groove 107 is formed at one end of the inner baffle 106, a cutter 108 disposed along the axial direction of the grass blocking cover 1 is mounted in the mounting groove 107, the cutter 108 is used for cutting the grass beating rope 601 at fixed intervals, and when the grass beating machine is started each time, redundant rope heads thrown out by the grass beating rope 601 under the action of centrifugal force are cut off when passing through the cutter 108, so that the grass beating rope 601 is prevented from being clamped on the grass blocking cover 1.

Referring to fig. 3 to 7, the grass blocking cover 1 is detachably connected with the connecting piece 2, a flange 102 is provided on the grass blocking cover 1, a T-shaped groove 103 and a clamping groove 104 are provided on the flange 102, a handle 105 is mounted at a side end of the flange 102, a T-shaped block 206 and a clamping block 207 are provided at one end of the connecting piece 2, the T-shaped block 206 is slidably connected with the T-shaped groove 103, the clamping block 207 is in snap connection with the clamping groove 104, and the grass blocking cover 1 is rapidly assembled and disassembled with the connecting piece 2 by holding the handle 105, so that disassembly and overhaul of the grass mower are facilitated. Install the pulley on the fender grass cover 1, the pulley can make the aircraft nose of beating grass by the personnel of beating grass pass the work of beating grass, compares traditional some and carry the aircraft nose of beating grass, and this grass beating machine need not to carry the aircraft nose of beating grass machine always and carries out the work of beating grass, has saved the physical expenditure of personnel of beating grass, has also reduced the limbs fatigue degree of the staff of beating grass.

Referring to fig. 2 to 10, a connecting piece 2 is installed between a grass blocking cover 1 and a shell 8, a step 202 is arranged on the connecting piece 2, the bottom of the shell 8 is in abutting fit with the step 202 of the connecting piece 2, a transmission cavity 201 is formed between the connecting piece 2 and the shell 8 in a matched mode, a mounting shell 4 is arranged in the transmission cavity 201, a motor 5 is installed in the mounting shell 4, round grooves 203, lugs 204 and a backing plate 205 are symmetrically arranged on two sides of the connecting piece 2, a protection frame 3 is hinged in the round grooves 203, a hack lever of the protection frame 3 has elasticity, when the protection frame 3 rotates towards the backing plate 205, the hack lever of the protection frame 3 slides against the lugs 204 and expands outwards, after passing through the lugs 204, the hack lever of the protection frame 3 returns to the original position under the elastic action force, under the condition of no external force, the protection frame 3 is located on the backing plate 205, the protection frame 3 reversely rotates again, and the protection frame 3 leaves the backing plate 205 and is located between the lugs 204 and the shell 8; the protection frame 3 and lug 204 sliding connection, backing plate 205 carry out spacingly to the protection frame 3, and the outside limit of protection frame 3 is greater than the diameter of saw bit 15, and the safety of grass cutting personnel has further been ensured in the setting of protection frame 3.

Referring to fig. 2 to 3 and 17, the rod set 10 includes a first connecting rod 1011, a second connecting rod 1012 and a handle 11 which are detachably connected, the second connecting rod 1012 is fixedly connected with the adjusting member 9, a first key 12, a second key 13 and a liquid crystal display 14 are arranged on the handle 11, a battery is connected on the handle 11, the battery provides power for the motor 5, the first key 12 is a grass cutting mode control key of the grass cutting machine, the second key 13 is a saw blade mode control key of the grass cutting machine, and the liquid crystal display 14 displays battery power information and a use mode of the grass cutting machine.

The embodiment is implemented in specific manner:

when the inclination angle of the adjusting rod group 10 on the grass cutting machine head is required, the push button tooth block 8013 is pushed into the adjusting piece 9, at the moment, the push button tooth block 8013 applies pressure to the spring 8014, the outer tooth part of the push button tooth block 8013 slides away from the second annular gear 8011 and slides to one side of the first annular gear 9011, when the outer tooth part of the push button tooth block 8013 completely leaves the second annular gear 8011, the inclination angle of the adjusting rod group 10 on the grass cutting machine head can be adjusted, after the angle adjustment of the rod group 10 is finished, the pushing force on the push button tooth block 8013 is released, the push button tooth block 8013 is bounced back to the second annular gear 8011 under the rebound force of the spring 8014, at the moment, one part of the outer tooth part of the push button tooth block 8013 is positioned on the first annular gear 9011, and the other part of the outer tooth part of the push button tooth block 8011 is positioned on the second annular gear 8011, so that the inclination angle of the adjusting piece 9 and the rod group 10 is fixed, a rod group 10 holding mode suitable for a grass cutting person can be found, and when long-time grass cutting work is performed, the limb fatigue degree of the grass cutting person is effectively reduced;

when the grass cutting rope 601 or the saw blade 15 on the grass cutting head 6 is replaced, the locking piece 7 is pushed into the shell 8, the locking piece 7 pushes the self-locking switch 703 connected with one end of the self-locking switch 703, under the locking action of the self-locking switch 703, the linear hole in the lock hole 702 on the locking piece 7 is clamped with the linear lock 501 of the motor 5, so that the motor shaft of the motor 5 cannot rotate, the locking piece 7 achieves the effect of locking the motor shaft, the personal safety of staff is further ensured, the motor shaft which is limited and fixed also facilitates the replacement of the grass cutting rope 601 and the saw blade 15 on the grass cutting head 6, when the tool part on the grass cutting head 6 is replaced, the locking piece 7 is pushed again, the self-locking switch 703 returns to the original position under the rebound force, and at the moment, the linear lock 501 of the motor 5 is not limited by the linear lock 501 of the motor 5, so that the subsequent grass cutting machine can be operated;

when the protective frame 3 rotates to the base plate 205, the frame rods of the protective frame 3 expand outwards when sliding the convex blocks 204, after passing through the convex blocks 204, the frame rods of the protective frame 3 return to the original positions under the elastic acting force, under the condition of not being subjected to external force, the protective frame 3 is positioned on the base plate 205, so that the protective frame 3 plays a role in safety protection for grass mowers, when not in use, the protective frame 3 reversely rotates again, and the protective frame 3 leaves the base plate 205 and is positioned between the convex blocks 204 and the shell 8;

when the grass trimmer is started each time, the redundant rope heads thrown out by the grass trimming rope 601 under the action of centrifugal force are cut off when passing through the cutter 108, so that the phenomenon that the grass trimming rope 601 is clamped on the grass blocking cover 1 is avoided.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (10)

1. The utility model provides a multifunctional grass trimmer, includes aircraft nose and pole group (10), its characterized in that: the machine head comprises a grass blocking cover (1) and a shell (8), the grass blocking cover (1) is detachably provided with a grass cutting head (6), the shell (8) is arranged on the grass blocking cover (1), and a lock shaft assembly is arranged in the shell (8); the lock shaft assembly comprises a locking piece (7) which is slidably arranged in a shell (8), a motor (5) is arranged in the shell (8), one end of a motor shaft of the motor (5) is rotationally connected with a grass mowing head (6), the other end of the motor shaft of the motor (5) is provided with an outwards extending linear lock head (501), and the linear lock head (501) is positioned in the locking piece (7); when the grass cutting head (6) is replaced, the locking piece (7) is pushed to clamp the locking piece (7) with the linear lock head (501).

2. A multi-function grass trimmer as defined in claim 1 wherein: an adjusting component is connected between the rod group (10) and the machine head and comprises an adjusting piece (9) arranged on the rod group (10), and the adjusting piece (9) and the shell (8) can be adjusted in a relative rotation mode.

3. A multi-function grass trimmer as defined in claim 2 wherein: the novel gear is characterized in that a push-torsion tooth block (8013) is slidably mounted in the shell (8), a spring (8014) is connected to the push-torsion tooth block (8013), a first annular gear (9011) meshed with the push-torsion tooth block (8013) is arranged in the adjusting piece (9), and a second annular gear (8011) meshed with the push-torsion tooth block (8013) is arranged on the shell (8).

4. A multi-function grass cutting machine as claimed in claim 3, wherein: the adjusting piece (9) comprises a first sleeve piece (901) and a second sleeve piece (902), the shell (8) comprises a first sleeve piece (801) and a second sleeve piece (802), a limiting block (8021) is arranged on the second sleeve piece (802), a limiting groove (9022) is formed in the second sleeve piece (902), the limiting block (8021) slides in the limiting groove (9022), a second annular gear (8011) is arranged on the first sleeve piece (801), a first annular gear (9011) is arranged on the first sleeve piece (901), and a spring (8014) is located between a pushing and twisting tooth block (8013) and a supporting wall (9021) of the second sleeve piece (902).

5. A multi-function grass cutting machine as set forth in claim 4, wherein: be provided with first spout (8012) on first shell (801), be provided with second spout (8022) on second shell (802), first spout (8012) forms the locked groove with second spout (8022), locking piece (7) slide in the locked groove, one end of locking piece (7) is provided with push head (701), lockhole (702) have been seted up at locking piece (7) middle part, lockhole (702) include a style of calligraphy hole and round hole, be connected with self-locking switch (703) between the other end of locking piece (7) and second spout (8022), a style of calligraphy tapered end (501) of motor (5) are located lockhole (702) of locking piece (7).

6. A multi-function grass trimmer as defined in claim 1 wherein: the grass cutting head (6) is detachably replaced with a grass cutting rope (601) and a saw blade (15), an inner baffle (106) is arranged in the grass cutting cover (1), an installation groove (107) is formed in one end of the inner baffle (106), a cutting knife (108) axially arranged along the grass cutting cover (1) is arranged in the installation groove (107), and the cutting knife (108) is used for cutting the grass cutting rope (601) at fixed intervals.

7. A multi-function grass trimmer as defined in claim 1 wherein: install connecting piece (2) between fender grass cover (1) and shell (8), be provided with step (202) on connecting piece (2), step (202) department at connecting piece (2) is installed in the bottom conflict of shell (8), cooperation is formed with transmission chamber (201) between connecting piece (2) and shell (8), be provided with installation shell (4) in transmission chamber (201), motor (5) are installed in installation shell (4).

8. A multi-function grass cutting machine as set forth in claim 7, wherein: the grass blocking cover (1) is detachably connected with the connecting piece (2), a flange (102) is arranged on the grass blocking cover (1), a T-shaped groove (103) and a clamping groove (104) are formed in the flange (102), a handle (105) is arranged at the side end of the flange (102), a T-shaped block (206) and a clamping block (207) are arranged at one end of the connecting piece (2), the T-shaped block (206) is in sliding connection with the T-shaped groove (103), the clamping block (207) is in buckling connection with the clamping groove (104), and a pulley is arranged on the grass blocking cover (1).

9. A multi-function grass cutting machine as set forth in claim 7, wherein: the utility model discloses a saw blade (15) for a cutting machine, including connecting piece (2), circular slot (203) and lug (204) and backing plate (205) are provided with to bilateral symmetry on connecting piece (2), articulated in circular slot (203) have protection frame (3), protection frame (3) and lug (204) sliding connection, backing plate (205) are spacing protection frame (3), the outside limit of protection frame (3) is greater than the diameter of saw blade (15).

10. A multi-function grass cutting machine as set forth in claim 9, wherein: the rod group (10) comprises a first connecting rod (1011), a second connecting rod (1012) and a handle (11) which are detachably connected, the second connecting rod (1012) is fixedly connected with the adjusting piece (9), and the handle (11) is provided with a first key (12), a second key (13) and a liquid crystal display screen (14).

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