CN218072517U

CN218072517U - Obstacle clearing rake tooth assembly of lawn trimming machine

Info

Publication number: CN218072517U
Application number: CN202222081801.8U
Authority: CN
Inventors: 程彪
Original assignee: Sichuan Yibei Intelligent Equipment Co ltd
Current assignee: Sichuan Yibei Intelligent Equipment Co ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2022-12-20
Anticipated expiration: 2032-08-08

Abstract

The utility model discloses a barrier-removing rake teeth component of lawn pruning machinery, which comprises a mounting seat, wherein the mounting seat is used for mounting rake teeth; the rake teeth group is used for clearing obstacles and combing grass, the rake teeth group comprises a plurality of rake teeth, the rake teeth are arranged on the mounting seat side by side in parallel, and the end face shape of one side, far away from the mounting seat, of the rake teeth group is one or more of a circular arc face, an inclined face relative to the length direction of a single rake tooth, and a shape, formed by at least two inclined faces, of a tip end with the direction far away from the mounting seat. The utility model discloses a clearance barrier rake teeth subassembly is through the design to rake teeth group front end face shape for remove the carrier when impelling, rake teeth group is after contacting the barrier, and the barrier can be along rake teeth group front end face towards the outside removal of rake teeth group, and final barrier breaks away from rake teeth group from the both sides of rake teeth group, has avoided the barrier to obstruct the propulsion of removing the carrier in rake teeth group the place ahead all the time, has also avoided the long-time wearing and tearing of rake teeth simultaneously.

Description

Obstacle clearing rake tooth assembly of lawn trimming machine

Technical Field

The utility model relates to a lawn mowing technical field especially relates to a mechanical obstacles removing rake teeth subassembly is pruned on lawn.

Background

The traditional lawn trimming machine is characterized in that a trimming cutter is horizontally arranged at the bottom of a manual or electric movable carrier, the trimming cutter rotates when the movable carrier moves, grass higher than the trimming cutter is trimmed, and then in order to protect the trimming cutter and improve trimming quality, obstacle clearing rake teeth are arranged below the trimming cutter;

however, the disadvantage of this apparatus is that the front end of the rake teeth assembly is flush, when the mobile carrier moves forward, the rake teeth assembly can only push the obstacle forward, i.e. the obstacle is always located in front of the rake teeth assembly, although the trimming cutter can be protected to a certain extent, the obstacle always blocks the propulsion of the mobile carrier in front of the rake teeth, and when the number of obstacles increases during the forward movement, the propulsion of the mobile carrier is increasingly blocked, which affects the movement of the mobile carrier, and the front end of the rake teeth always collides or rubs against the obstacle, and the rake teeth are easily damaged due to long-term wear.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the prior art, the utility model provides a lawn mowing machinery's clearance rake teeth subassembly, this lawn mowing machinery's clearance rake teeth subassembly is through the design to rake teeth group front end face shape, make and remove the carrier when impelling, rake teeth group is after contacting the barrier, under the thrust effect of rake teeth group, the barrier can be removed towards the outside of rake teeth group along rake teeth group front end face, the both sides edge that final barrier was organized from the rake teeth breaks away from the rake teeth group, avoided the barrier to obstruct the propulsion of removing the carrier all the time in rake teeth group the place ahead, also avoided the rake teeth to suffer wearing and tearing for a long time simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a machinery's obstacles removing rake teeth subassembly is pruned on lawn, include:

a mounting base for mounting a rake tine;

the rake tooth group is used for clearing obstacles and combing grass and comprises a plurality of rake teeth, the rake teeth are arranged on the mounting seat side by side in parallel, and the end surface of one side, far away from the mounting seat, of the rake tooth group is in one or more combinations of a circular arc surface, an inclined surface relative to the length direction of a single rake tooth and a shape of a tip end, formed by at least two inclined surfaces, with the direction far away from the mounting seat.

The utility model discloses a lawn mowing machinery's clearance rake teeth subassembly is through the design to rake teeth group front end face shape for remove the carrier when impelling, rake teeth group is after contacting the barrier, under the thrust effect of rake teeth group, the barrier can remove along the outside of rake teeth group towards rake teeth group of rake teeth group front end face, the both sides edge that final barrier was organized from the rake teeth group breaks away from the rake teeth group, avoided the barrier to obstruct the propulsion of removing the carrier in rake teeth group the place ahead all the time, the while has also avoided the rake teeth to suffer wearing and tearing for a long time.

In a further technical scheme, one end of each rake tooth, which is far away from the mounting seat, is provided with a notch so as to form the end surface shape of one side of the rake tooth group, which is far away from the mounting seat.

The unfilled corners are arranged at the end parts of the rake teeth, so that the shape transition formed by the end surfaces of the rake teeth group is smoother, the obstacle can slide towards the two sides of the rake teeth group along the end surfaces of the obstacle, and the obstacle removing effect is better.

In a further aspect, the rake teeth comprise:

the fixing part is connected with the mounting seat and is used for supporting the movable part;

the movable part is detachably connected to one end, far away from the mounting seat, of the fixing part.

Be divided into fixed part and movable part with the rake teeth, movable part detachable design for the whole rake teeth group need not to be changed at long-term maintenance in-process that uses of rake teeth group, only need to wear out serious movable part change can, maintenance cost is lower.

In a further aspect, the movable portion includes:

the lower arc part is bent towards the ground and used for clearing obstacles and combing low grass;

the connecting part is arranged at one end of the lower arc part and is used for being connected with the fixing part.

The lower arc part is bent towards the ground, so that the height range of grass combing by the harrow teeth is larger, the trimming quality is better, the bent lower arc part can play a role in buffering when colliding with a barrier, and the impact on the fixing part is smaller.

In a further aspect, the movable portion further includes:

the upper arc part is in a bending shape with the bending direction opposite to that of the lower arc part, and the upper arc part is used for blocking the barrier raised by the lower arc part.

The upper arc part can block the barriers raised by the bent lower arc part, so that the barriers are prevented from being raised to the trimming cutter, and a good protection effect is achieved on the trimming cutter.

In a further aspect, the top of the upper arc is higher than the level of the trimming blade of the lawn trimming machine.

The top of the upper arc part winds above the trimming cutter, and all obstacles flying from the front are blocked by the upper arc part, so that the trimming cutter can be protected to the maximum extent, and the combing effect of the harrow teeth on grass is not influenced.

In a further technical scheme, an upper arc mounting sleeve is arranged at the bottom of the upper arc part, a penetrating cavity is arranged inside the upper arc mounting sleeve, and the shape of the cavity is matched with that of the connecting part.

The upper arc portion is installed through the upper arc installation sleeve, the problem that two bent parts are connected to be unstable caused by the same connecting portion can be avoided, meanwhile, the upper arc installation sleeve can produce an extruding effect on the connecting portion when the upper arc installation sleeve, the connecting portion and the nested portion are fixed together, and the connecting strength between the upper arc installation sleeve and the connecting portion is further enhanced.

In a further technical scheme, the fixing portion is arranged obliquely, and the horizontal height of one end, connected with the mounting seat, of the fixing portion is higher than that of one end, far away from the mounting seat, of the fixing portion.

The fixing part is obliquely arranged, so that an obstacle entering between the fixing part and the trimming cutter under a special condition can slide downwards under the action of self weight, the trimming cutter is prevented from being continuously damaged, and the obliquely arranged fixing part has a better supporting effect on the bent lower arc part.

In a further technical scheme, the one end of fixed part that keeps away from the mount pad is provided with nested portion and is connected with the movable part through this nested portion, set up the breach that corresponds the breach shape assorted on the movable part with this fixed part on the nested portion, a plurality of the length of the movable part of rake teeth equals.

Through setting up nested portion, the fixed part of being convenient for is connected with the movable part is inseparabler, and the breach convenient to use person who sets up in the nested portion simultaneously selects or processes the breach of movable part according to the shape of nested portion breach when maintaining, and further be convenient for maintain.

In a further aspect, the movable portion is plastic.

The movable part made of plastic has lower cost, is convenient to be constructed to conform to the standard shape during maintenance, does not need to store movable parts with all shapes, and can be constructed and processed according to the shape of the replaced movable part during replacement.

Has the advantages that:

1. the utility model discloses a lawn mowing machinery's clearance rake teeth subassembly is through the design to rake teeth group front end face shape for remove the carrier when impelling, rake teeth group is after contacting the barrier, under the thrust effect of rake teeth group, the barrier can remove along the outside of rake teeth group towards rake teeth group of rake teeth group front end face, the both sides edge that final barrier was organized from the rake teeth group breaks away from the rake teeth group, avoided the barrier to obstruct the propulsion of removing the carrier in rake teeth group the place ahead all the time, the while has also avoided the rake teeth to suffer wearing and tearing for a long time.

2. The unfilled corners are arranged at the end parts of the rake teeth, so that the shape transition formed by the end surfaces of the rake teeth group is smoother, the obstacle can slide towards the two sides of the rake teeth group along the end surfaces of the obstacle, and the obstacle removing effect is better.

3. Be divided into fixed part and movable part with the rake teeth, movable part detachable design for the whole rake teeth group need not to be changed at long-term maintenance in-process that uses of rake teeth group, only need to wear out serious movable part change can, maintenance cost is lower.

4. The arc portion is crooked towards ground down for the high scope that the rake teeth can comb grass is bigger, and the quality of pruning is better, and the effect of buffering can be played to the lower arc portion of crooked when colliding the barrier simultaneously, and the impact that the fixed part received is littleer.

5. The upper arc part can block the barriers raised by the bent lower arc part, so that the barriers are prevented from being raised to the trimming cutter, and a good protection effect is achieved on the trimming cutter.

6. The top of the upper arc part winds above the trimming cutter, and all obstacles flying from the front are blocked by the upper arc part, so that the trimming cutter can be protected to the maximum extent, and the combing effect of the harrow teeth on grass is not influenced.

7. Install last arc portion through going up the arc installation cover, can avoid two crooked parts to connect the unstable problem that brings at same connecting portion, go up the arc installation cover simultaneously, connecting portion and nested portion when fixing together and can produce extruded effect to connecting portion, further strengthen the joint strength between the three.

8. The fixing part is obliquely arranged, so that an obstacle entering between the fixing part and the trimming cutter under a special condition can slide downwards under the action of self weight, the trimming cutter is prevented from being continuously damaged, and the obliquely arranged fixing part has a better supporting effect on the bent lower arc part.

9. Through setting up nested portion, the fixed part of being convenient for is connected with the movable part is inseparabler, and the breach convenient to use person who sets up in the nested portion simultaneously selects or processes the breach of movable part according to the shape of nested portion breach when maintaining, and further be convenient for maintain.

10. The movable part made of plastic has lower cost, is convenient to be constructed to conform to the standard shape during maintenance, does not need to store movable parts with all shapes, and can be constructed and processed according to the shape of the replaced movable part during replacement.

Drawings

Fig. 1 is a top view of the overall construction of a first embodiment of the obstacle clearing rake teeth assembly of the lawn mowing machine of the present invention;

fig. 2 is a top view of the overall structure of a obstacle clearing rake teeth assembly of a lawn mowing machine according to a second embodiment of the present invention;

fig. 3 is a top view of the overall construction of a third embodiment of the obstacle clearing rake teeth assembly of the lawn mowing machine according to the present invention;

fig. 4 is a top view of the overall construction of a obstacle clearing rake teeth assembly of a lawn mowing machine according to a fourth embodiment of the present invention;

fig. 5 is a top view of the overall construction of a fifth embodiment of the obstacle-clearing rake teeth assembly of the lawn mowing machine of the present invention;

fig. 6 is a plan view of the whole construction of a obstacle-clearing rake teeth assembly of a lawn-trimming machine according to a sixth embodiment of the present invention;

fig. 7 is a plan view of the entire construction of a obstacle-clearing rake teeth assembly of a lawn mowing machine according to a seventh embodiment of the present invention;

fig. 8 is a top view of the overall structure of a obstacle clearing rake teeth assembly of a lawn mowing machine according to another embodiment of the present invention;

fig. 9 is a schematic view of a disassembled structure of the blade of the obstacle clearing blade assembly of the lawn mowing machine according to another embodiment of the present invention;

FIG. 10 is an enlarged partial view of the structure at A in FIG. 9;

fig. 11 is a schematic view illustrating a detachable structure of a movable portion and a fixed portion of a obstacle clearing rake teeth assembly of a lawn mowing machine according to another embodiment of the present invention;

fig. 12 is a schematic view illustrating an installation state of a rake teeth set of the obstacle removing rake teeth assembly of the lawn mowing machine according to another embodiment of the present invention;

fig. 13 is a schematic view of the relative position relationship between the cutting blade and the rake teeth of the obstacle removing rake teeth assembly of the lawn mowing machine according to another embodiment of the present invention;

fig. 14 is a schematic structural view illustrating a connection state of a movable portion and a fixed portion of the obstacle clearing rake teeth assembly of the lawn mowing machine according to another embodiment of the present invention;

fig. 15 is a schematic structural view illustrating a state in which the movable portion and the fixed portion of the obstacle clearing rake teeth assembly of the lawn mowing machine according to another embodiment of the present invention are separated from each other.

Reference numerals:

10. a mounting base; 20. rake teeth; 21. a fixed part; 211. a nesting part; 22. a movable portion; 221. a connecting portion; 222. a lower arc portion; 223. an upper arc portion; 224. an upper arc mounting sleeve; 30. and (4) trimming the cutter.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

example 1:

a obstacle clearing rake tooth assembly for a lawn mowing machine, as shown in fig. 1, comprising:

a mounting seat 10, wherein the mounting seat 10 is used for mounting the rake teeth 20;

the rake teeth set is used for clearing obstacles and combing grass and comprises a plurality of rake teeth 20, the rake teeth 20 are arranged on the mounting base 10 side by side in parallel, and the end face of one side, far away from the mounting base 10, of the rake teeth set is in the shape of one or a combination of a circular arc face, an inclined face relative to the length direction of a single rake tooth 20 and a shape, formed by at least two inclined faces, of a tip end in the direction far away from the mounting base 10.

In this embodiment, the end surface of the rake teeth set away from the mounting seat 10 is a complete circular arc surface, and the rake teeth 20 are straight, and the end surface is not processed.

The utility model discloses a lawn mowing machinery's clearance rake teeth subassembly is through the design to rake teeth group front end face shape for remove the carrier when impelling, rake teeth group is after contacting the barrier, under the thrust effect of rake teeth group, the barrier can be removed along the outside of rake teeth group towards rake teeth group front end face, the both sides edge that final barrier was organized from the rake teeth group breaks away from the rake teeth group, avoided the barrier to obstruct the propulsion of removing the carrier in rake teeth group the place ahead all the time, also avoided rake teeth 20 to suffer wearing and tearing for a long time simultaneously.

Example 2:

as shown in fig. 2, the present embodiment is different from embodiment 1 in that one end of the rake teeth 20 away from the mounting seat 10 is chamfered to form an end surface shape of one side of the rake teeth group away from the mounting seat 10.

The unfilled corners are formed at the end parts of the rake teeth 20, so that the shape transition formed by the end surfaces of the rake teeth group is smoother, the obstacle can slide towards the two sides of the rake teeth group along the end surfaces of the obstacle more favorably, and the obstacle removing effect is better.

In the present embodiment, the end surface of the rake tooth group is still in the shape of a circular arc, but a circular arc notch is cut on the end surface of the rake tooth 20, so that the transition between the rake teeth 20 is smoother, and the circular arc surface has stronger bearing capacity when being impacted.

Example 3:

as shown in fig. 3, the present embodiment is different from embodiment 2 in that the end face of the rake teeth group is shaped as an entirely inclined slope.

In the present embodiment, the end surface of the rake teeth 20 is also provided with a notch, and in the present embodiment, the notch of the end surface of the rake teeth 20 is also an inclined notch.

In the process of propelling the mobile carrier, all the obstacles slide towards one side of the rake tooth group.

Example 4:

as shown in fig. 4, the present embodiment is different from embodiment 3 in that the end surface of the rake teeth group is shaped into a tip end composed of at least two inclined surfaces in a direction away from the mounting seat 10, and in the present embodiment, the end surface of the rake teeth group is shaped into two inclined surfaces, and the intersection point thereof is in the middle of the end surface of the rake teeth group.

In the propelling process of the mobile carrier, the obstacles can slide towards the left side and the right side of the rake tooth group according to the positions of the obstacles contacting the rake tooth group.

Example 5:

as shown in fig. 5, the difference between this embodiment and embodiment 4 is that the end surface of the rake teeth group is formed by four inclined surfaces, and the intersection points are respectively in the middle of the end surface of the rake teeth group and on both sides of the middle, and in this embodiment, the number of the inclined surfaces is larger;

aiming at the condition that the number of the inclined planes is more, the inclined planes can be closer to the rotation track of the trimming cutter 30, as shown in fig. 5, the end surface shape of the rake tooth group and the rotation track of the trimming cutter 30 are marked by dotted lines in fig. 5, the inclined planes formed at the front ends of the rake tooth group are nearly tangent to the rotation track of the trimming cutter 30, in order to ensure safety in practical application, the rake teeth 20 are designed to be longer, but under the condition that the inclined planes are more, the end surfaces of the rake tooth group can be closer to the rotation track of the trimming cutter 30, the length of the rake teeth 20 at the edges of the two sides of the rake tooth group is shorter, the support performance of the mounting seat 10 on the rake teeth 20 is better, the rake teeth 20 are less prone to deformation, meanwhile, the angles of the inclined planes at the edges of the two sides of the rake tooth group are larger, the obstacle can be more conveniently enabled to rapidly slide out of the front of the trimming cutter group, and the obstacle removing effect is better.

Example 6:

as shown in fig. 6, the difference between this embodiment and embodiment 5 is that the end surface of the rake tooth group is a combined shape of an arc surface located in the middle and inclined surfaces located on both sides of the arc surface, the end surface shape of the rake tooth group and the rotation trajectory of the trimming cutter 30 in fig. 6 are also marked by dotted lines, the arc surface is located in the middle, and when the middle is just opposite to the impact, the bearing capacity of the arc surface is greater than that of the end point of the rake tooth group, so that the combined shape can ensure the bearing capacity of the impact, and can also obtain an inclined surface with a larger inclination angle at the edge of the rake tooth group, thereby quickly removing obstacles, providing a better support for the rake teeth 20 by the mounting seat 10, and making the rake teeth 20 less prone to deformation.

In the above embodiments, one of the circular arc surfaces, the inclined surfaces with respect to the length direction of the single rake teeth 20, and the shape of the tip end composed of at least two inclined surfaces with the direction away from the mounting seat 10 are respectively exemplified, and combinations of the three ways are also exemplified, but it will be understood by those skilled in the art that the shapes of the end surfaces of the rake teeth group can be further combined on the basis of the above three single designs, and will not be exhaustive here.

Example 7:

as shown in fig. 7, the present embodiment is different from embodiment 4 in that the end surface of the mounting seat 10 facing the rake teeth group has the same shape as the end surface of the rake teeth group, and also has a shape with a sharp end composed of two inclined surfaces, which can further reduce the length of the rake teeth 20, and the mounting seat 10 has better support performance for the rake teeth 20, so that the rake teeth 20 are less likely to deform.

In another embodiment, as shown in fig. 8, 9 and 10, this embodiment can be implemented on the basis of any of the above embodiments, and is exemplified on the basis of embodiment 2.

The rake teeth 20 include:

a fixed part 21, wherein the fixed part 21 is connected with the mounting seat 10, and the fixed part 21 is used for supporting the movable part 22;

and the movable part 22 is detachably connected to one end, far away from the mounting seat 10, of the fixed part 21.

The rake teeth 20 are divided into the fixed part 21 and the movable part 22, and the movable part 22 is detachably designed, so that the whole rake teeth group does not need to be replaced in the long-term use maintenance process, only the movable part 22 seriously abraded needs to be replaced, and the maintenance cost is lower.

In another embodiment, as shown in fig. 10, a nesting portion 211 is provided at the end of the fixed portion 21, and the nesting portion 211 is provided to facilitate the installation of the movable portion 22.

In another embodiment, as shown in fig. 11, the movable portion 22 includes:

a lower arc part 222, wherein the lower arc part 222 is bent towards the ground, and the lower arc part 222 is used for clearing obstacles and combing low grass;

the connecting portion 221 is disposed at one end of the lower arc portion 222, and the connecting portion 221 is connected to the fixing portion 21.

Lower arc 222 is crooked towards ground, to the crooked grass of the transverse direction for rake teeth group direction of advance, the lower arc 222 of downwarping can comb it vertically, be convenient for rake teeth 20 to prune, consequently make the range of height that rake teeth 20 can comb grass bigger, in prior art, for combing crooked grass vertically, need carry out the setting of power component, this embodiment can realize similar technological effect through the structural design to lower arc 222, the quality of pruning is better, crooked lower arc 222 can play the effect of buffering when colliding the barrier simultaneously, the impact that fixed part 21 received is littleer.

In another embodiment, as shown in fig. 11, the movable portion 22 further includes:

and an upper arc part 223, wherein the upper arc part 223 is bent in a direction opposite to the bending direction of the lower arc part 222, and the upper arc part 223 is used for blocking an obstacle raised by the lower arc part 222.

The lower arc portion 222 is bent downward, and it may happen that some small stones are pushed to the outside of the rake teeth group and simultaneously lifted by the rake teeth group, and by arranging the upper arc portion 223, a barrier is formed between the lower arc portion 222 and the trimming cutter 30, and the arrangement of the upper arc portion 223 can block the obstacle lifted by the bent lower arc portion 222, so as to prevent the obstacle from being lifted toward the trimming cutter 30, and thus, the trimming cutter 30 is protected well.

In another embodiment, as shown in fig. 13, the top of the upper arc 223 is at a higher level than the level of the trimming blade 30 of the lawn trimming machine.

The top of the upper arc part 223 winds to the upper part of the trimming cutter 30, and all obstacles flying from the front are blocked by the upper arc part 223, so that the trimming cutter 30 can be protected to the maximum, and the combing effect of the harrow teeth 20 on grass is not influenced.

In another embodiment, as shown in fig. 11, 12 and 13, an end of the upper arc portion 223 is fixedly connected to the connecting portion 221, in this embodiment, the upper arc portion 223, the lower arc portion 222 and the connecting portion 221 are of an integral structure, a cavity having the same shape as the nesting portion 211 is opened in the middle of the connecting portion 221, and engaging structures are respectively disposed on the surface of the nesting portion 211 and the inner wall of the cavity in the middle of the connecting portion 221, and the connecting portion 221 and the nesting portion 211 are engaged by the engaging structures.

In another embodiment, as shown in fig. 14 and 15, the bottom of the upper arc part 223 is provided with an upper arc mounting sleeve 224, and the inner part of the upper arc mounting sleeve 224 is provided with a through cavity, and the shape of the cavity matches with the shape of the connecting part 221.

When the upper arc portion 223 is installed, the upper arc installing sleeve 224 is sleeved from one end of the lower arc portion 222, the upper arc installing sleeve 224 is opposite to the connecting portion 221 in position, installing holes are formed in the upper arc installing sleeve 224 and the connecting portion 221, a middle cavity of the connecting portion 221 is matched with the shape of the nested portion 211, installing holes with the same size are also formed in the nested portion 211, after the positions of the upper arc installing sleeve and the connecting portion 221 are adjusted, the nested portion 211 is inserted into the middle cavity of the connecting portion 221, screws and nuts are screwed into two sides of the upper arc installing sleeve 224, and the upper arc installing sleeve 224 is fixed into a whole.

The upper arc portion 223 is installed through the upper arc installation sleeve 224, the problem that two bent parts are connected to the same connecting portion 221 and are unstable can be avoided, meanwhile, when the upper arc installation sleeve 224, the connecting portion 221 and the nesting portion 211 are fixed together, the upper arc installation sleeve 224 can extrude the connecting portion 221, and the connection strength among the upper arc installation sleeve 224, the connecting portion 221 and the nesting portion 211 is further enhanced.

In another embodiment, as shown in fig. 12 and 13, the fixing portion 21 is disposed obliquely, and the horizontal height of the end of the fixing portion 21 connected to the mounting seat 10 is higher than the horizontal height of the end of the fixing portion 21 away from the mounting seat 10.

Fixing portion 21 is obliquely arranged, so that an obstacle entering between fixing portion 21 and trimming cutter 30 under a special condition can slide downwards under the action of self weight, damage to trimming cutter 30 continuously is avoided, and the supporting effect of obliquely arranged fixing portion 21 on curved lower arc portion 222 is better.

In practical use, the trimming blade 30 is moved across the fixing portion 21 at a constant frequency interval, and the fixing portion 21 is directly swept out with a possibility of small stones on the fixing portion 21, but since some small stones always collide with the trimming blade 30 on the fixing portion 21, even if small stones enter between the fixing portion 21 and the trimming blade 30, the small stones can be quickly discharged in conjunction with the sweeping of the trimming blade 30 when the fixing portion 21 is inclined.

In another embodiment, as shown in fig. 10, one end of the fixing portion 21, which is far away from the mounting base 10, is provided with a nesting portion 211, and is connected to the movable portion 22 through the nesting portion 211, the nesting portion 211 is provided with a notch matching with the notch of the movable portion 22 corresponding to the fixing portion 21, and the movable portions 22 of the rake teeth 20 have the same length.

Through setting up nested portion 211, the fixed part 21 of being convenient for is connected with the activity portion 22 is inseparabler, and the breach convenient to use person who sets up on the nested portion 211 simultaneously selects or processes the breach of activity portion 22 according to the shape of nested portion 211 breach when maintaining, and the length homoenergetic of the activity portion 22 of rake teeth 20 equals, is convenient for accomodate and store the transportation, further is convenient for maintain.

In another embodiment, the movable portion 22 is entirely plastic.

The plastic movable portion 22 is less expensive, and it is convenient to form the movable portion to a standard shape by a built-up form during maintenance, and it is not necessary to store the movable portions 22 of all shapes, and it is sufficient to build a new movable portion 22 in accordance with the shape of the movable portion 22 to be replaced during replacement.

In another embodiment, the lower arc portion 222 and the connecting portion 221 are made of plastic, the upper arc portion 223 and the upper arc mounting sleeve 224 are made of metal, the lower arc portion 222 is fast in loss, the plastic is low in cost, the upper arc portion 223 is slow in loss, the metal is long in service life, the metal upper arc portion 223 is strong in impact resistance, the upper arc portion 223 can be prevented from being bent when being impacted by stones and moving towards the trimming cutter 30, and the rotation movement of the trimming cutter 30 is prevented, therefore, the metal upper arc portion 223 is made of metal, the trimming cutter 30 can be better protected, the connecting portion 221 is made of plastic, and when the connecting portion 221 is fastened by screws, the connecting portion 221 can be further deformed, so that the connecting portion 221 and the nesting portion 211, the connecting portion 221 and the upper arc mounting sleeve 224 are closer, and the connecting strength is higher.

The foregoing illustrates and describes the general principles, features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A clearance rake teeth assembly for a lawn mowing machine, comprising:

a mounting base for mounting a rake tine;

2. A obstacle clearing rake teeth assembly for a lawn mowing machine as claimed in claim 1, wherein an end of the rake teeth remote from the mounting base is chamfered to form an end face shape of a side of the rake teeth assembly remote from the mounting base.

3. A clearing rake blade assembly of a lawn mowing machine as claimed in claim 2, wherein the rake blade comprises:

the movable part is detachably connected to one end, far away from the mounting seat, of the fixed part.

4. A obstacle clearing rake tooth assembly for a lawn mowing machine as claimed in claim 3, wherein the movable portion comprises:

5. The trimmer according to claim 4, wherein the movable portion further comprises:

the upper arc part is in a bending shape with the opposite direction to the bending direction of the lower arc part, and the upper arc part is used for blocking the barrier raised by the lower arc part.

6. The obstacle clearing rake tooth assembly of a lawn mowing machine as claimed in claim 5, wherein a top of the upper arc has a higher level than a level of a trimming blade of the lawn mowing machine.

7. A snag removal rake tooth assembly for a lawn mowing machine according to claim 5, wherein the bottom of the upper curved portion is provided with an upper curved mounting sleeve, and a through cavity is provided inside the upper curved mounting sleeve and has a shape matching the shape of the connecting portion.

8. A obstacle clearing rake tine assembly for a lawn mowing machine as claimed in claim 4, wherein said anchor portion is inclined such that the end of said anchor portion connected to the mounting is at a higher level than the end of said anchor portion remote from the mounting.

9. A obstacle clearing rake teeth assembly for a lawn mowing machine according to claim 3, wherein a nesting portion is disposed at an end of the fixed portion away from the mounting seat and connected to the movable portion through the nesting portion, the nesting portion is provided with a notch matching with the notch of the movable portion corresponding to the fixed portion, and the movable portions of the plurality of rake teeth are equal in length.

10. A obstacle clearing rake tine assembly for a lawn mowing machine as defined in claim 9, wherein the movable portion is plastic.