CN217509420U

CN217509420U - Grass mowing head and grass mowing machine using grass mowing head

Info

Publication number: CN217509420U
Application number: CN202122856965.9U
Authority: CN
Inventors: 何科峰; 何壮壮; 何彩芬; 王海伟; 成银华
Original assignee: Zhejiang Sunseeker Industrial Co ltd
Current assignee: Zhejiang Baima Technology Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-09-30
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses the machine of beating grass of head and using this head of beating grass, including the upper cover, the subassembly is hung to the blade that detachable was fixed in the upper cover, the lower cover of detachable and upper cover combination, the lateral wall of upper cover is equipped with an at least breach, and a tip of subassembly is hung to the blade corresponds the breach and stretches out, and the position installation blade that the subassembly was stretched out is hung to the blade. Be detachable fixed connection between upper cover and the lower cover, all the other each parts are convenient registrates and connect, this technical scheme utilizes the overall structure shape of upper cover to set up the breach at its lateral wall, and set up blade rack subassembly and install inside the upper cover, a tip of blade rack subassembly corresponds the breach and stretches out, the blade is installed at the position of stretching out, blade rack subassembly is in fastening state with the upper cover behind the lower cover fixed connection, the impact force that the blade received when beating grass just can be absorbed by the breach side like this, and the blade rack subassembly also can share the atress of breach side by the fastening power that the lower cover compressed tightly, consequently, impact resistance can strengthen by a wide margin under the combination.

Description

Grass mowing head and grass mowing machine using same

Technical Field

The utility model belongs to the technical field of garden instrument, concretely relates to head of beating grass with stronger shock resistance.

Background

The blade of the grass cutter among the prior art scheme passes through the connecting piece plug-in type and installs on the inferior valve, this is in the operation of actually mowing grass, and when certain blade met hard object, the effort that this blade received directly transmitted to the inferior valve on, and the inferior valve is integrated into one piece preparation for this local position hardly carries out solitary enhancement processing, consequently just this position suffers the damage in making the inferior valve very easily, thereby needs to change whole inferior valve.

Disclosure of Invention

To the defect that above-mentioned prior art exists, the utility model aims to solve the technical problem that a grass mowing head is provided, the hanger subassembly that sets up the installation blade in this grass mowing head is connected with casing breach side atress, and arbitrary blade can both disperse each breach side of inferior valve with the impact force after receiving the impact like this.

The utility model aims at realizing through the following technical scheme: a grass-mowing head comprises a shell with an inner cavity; the casing lateral wall is equipped with at least a breach, detachably fixes the hanger subassembly in the casing, and at least one end of hanger subassembly is followed and is corresponded the breach and stretch out, and the position that the hanger subassembly stretches out is constructed for installing the cutting member.

Preferably, the hanger component comprises a hanger connecting piece detachably fixed on the side wall of the upper cover, a hanger is arranged on the hanger connecting piece, and the blade is installed on the hanger through the connecting piece. The blades are installed by arranging the components which are connected with each other, and the assembly mode is socket joint, so that the connection is convenient.

Preferably, the notches are arranged on two side walls of the upper cover along the central line of the bottom in an opposite mode, the center of the bottom of the upper cover on the side walls is provided with a raised mounting column, the center of the mounting column is provided with a threaded hole, the outer surface of the mounting column is sleeved with the hanger connecting piece, and the threaded hole is used for mounting the lower cover through a bolt. The purpose that sets up two breachs is that the blade is installed the stores pylon and is installed the stores pylon connecting piece again after, and the stores pylon connecting piece is installed in breach department, and its atress position has formed the combination position of being connected with two breachs, and the atress position is dispersed and the atress area increases, therefore resists shock and can strengthen.

Preferably, the hanger connecting piece is in a long strip shape, a circular protrusion is arranged at the center of the hanger connecting piece, a first sleeving hole matched with the outer surface of the mounting column is formed in the protrusion, extension sections which are consistent with the cross section of the notch and face the same surface are respectively arranged at the two end portions of the hanger connecting piece, bosses are respectively symmetrically arranged on the surface opposite to the circular protrusion and the first sleeving hole, and gaps are reserved on one sides of the bosses after the extension sections and the notch are mounted. Regard as the setpoint of installing in the upper cover to the stores pylon connecting piece with first overlap hole, be equipped with simultaneously to first overlap hole and protruding the enhancement, it is little to set up extension section and breach cooperation installation and both cross-sections unanimous such cooperation back clearance, leaves the clearance after the cooperation and is used for installing the stores pylon.

Preferably, the stores pylon appearance is waist type platelike, and the width is unanimous with the breach, and the one end of face is equipped with the second box hole that matches the boss, and the thick thickening of other end board of face just is equipped with the third box hole of installation connecting piece. After the plate thickness is increased, the strength of the local position is enhanced after the blade is installed through the connecting piece.

Preferably, one end of the second sleeving hole of the hanging rack penetrates through the gap and the second sleeving hole is sleeved with the boss, and the other end of the hanging rack is exposed outside the upper cover. The sleeving connection mode is convenient to install, the installation is carried out when the lower cover is loosened, the installation mode penetrates through the gap from the outside and then the second sleeving connection hole is sleeved on the boss, and the installation is convenient to install and reliable in connection.

Preferably, the lower cover is provided with an annular protrusion on the inner side, after the upper cover and the lower cover are combined, the annular protrusion is pressed on the hanging rack, the hanging rack connecting piece and the hanging rack are pressed on the bottom of the upper cover together, and meanwhile, the hanging rack is limited by the notches in the upper cover on two sides, so that the position of the hanging rack is completely limited, and the blades on the hanging rack can be positioned through the connecting piece.

Preferably, the outer side of the end of the extension section has a rounded chamfer. This chamfer facilitates initial entry of the hanger attachment into the upper cover during installation.

Preferably, reinforcing ribs are arranged on two sides of the notch close to the inner part of the upper cover. The two sides of the notch are used as the stress parts of the blade during grass mowing, and reinforcing ribs are arranged to strengthen the strength.

To sum up, compared with the prior art, the utility model has the following advantages:

the utility model is characterized in that the upper cover and the lower cover are fixedly connected in a detachable way, and the other parts are conveniently sleeved and connected, the technical proposal utilizes the integral structure shape of the upper cover to arrange a gap on the side wall, and a hanger component is arranged in the upper cover, one end part of the hanger component extends out corresponding to the gap, a blade is arranged at the extending part and is closely matched with the width direction of the gap, the hanger component and the upper cover are in a fastening state after the lower cover is fixedly connected, namely the hanger component is equivalent to form a whole, when the blade is impacted during grass mowing, the part where the blade is arranged generates huge circumferential force which is supported when being transmitted to the hanger component, therefore, the blade can be absorbed by the part where the hanger component is connected with the gap, and the fastening force of the hanger component compressed by the lower cover can also share the stress of the connecting part, thus, the impact resistance under the bonding is greatly enhanced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a state view of the upper cover mated with the hanger attachment;

FIG. 4 is a state view of the process of installing the hanger into the upper cover and hanger attachment;

fig. 5 is an exploded view of the components of the present invention.

The labels in the figure are:

a notch 001; a reinforcing rib 002; a bolt 003; an attachment portion 004; an upper cover 100; a mounting post 101; a threaded hole 102; a hanger assembly 110; a hanger attachment 111; a hanger 112; a connecting member 113; a boss 114; the gap 115; a second registration hole 116; a circular arc chamfer 117; a first mating hole 118; an extension 119; a third mating hole 120; a lower cover 200; a blade 300.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

example (b):

as shown in figures 1-2, a grass cutting head comprises an upper cover 100, wherein a mounting part 004 connected with an external motor shaft is arranged in the center of the upper cover 100, and the upper cover 100 is driven by the external motor shaft to rotate.

As shown in fig. 2-3, the hanger assembly 110 is detachably and fixedly connected to the upper cover 100, the lower cover 200 is detachably combined with or separated from the upper cover 100 by bolts 003, and the inner side of the lower cover 200 has an annular protrusion, and the annular protrusion of the lower cover 200 is pressed against the hanger assembly 110 to abut against the bottom of the upper cover 100 when combined.

Two notches 001 are oppositely arranged on two side walls of the upper cover 100 along the central line of the bottom, a raised mounting column 101 is arranged at the center of the bottom of the side wall upper cover 100, a threaded hole 102 is arranged at the center of the mounting column 101, a hanger connecting piece 111 is sleeved on the outer surface of the mounting column 101, and the lower cover 200 is installed at the threaded hole 102 through a bolt.

The hanger assembly 110 includes: a rack connecting piece 111 detachably fixed on the side wall of the upper cover 100, the rack connecting piece 111 is a hard material with certain elasticity, the rack connecting piece 111 is strip-shaped, the center is provided with a circular protrusion, the protrusion is provided with a first coupling hole 118 matching with the outer surface of the mounting post 101, two ends are respectively provided with an extension section 119 which has the same section with the gap 001 and faces to the same side plate surface, the plate surface opposite to the circular protrusion and the first coupling hole 118 are respectively provided with a boss 114 symmetrically, two extension sections 119 are respectively inwards extruded and mounted from the opening side of the upper cover 100 corresponding to the gap 001, in order to facilitate the initial stage of mounting, the outer side of the end of the extension section 119 is provided with a circular arc chamfer 117, by extruding the rack connecting piece 111, the circular arc chamfer 117 is abutted against the inner wall of the upper part of the corresponding gap 001, by continuously applying an extrusion force, the rack connecting piece 111 is elastically deformed, see figure 3, until the rack connecting piece 111 is pushed into the gap 001, the interference between the two parts disappears, the hanger connecting piece 111 is restored to the initial state, a gap 115 is left at one side of the notch 001 close to the boss 114 after installation, and the gap 115 is used for installing the hanger 112. Bosses 114 are respectively arranged on the two sides of the first coupling hole 118 along the extending direction of the hanger connecting piece 111 at intervals; the two ends of the hanger connecting member 111 are respectively provided with an extension 119.

The hanger assembly 110 further comprises: a hanger 112 is provided on the hanger connector 111, and a blade 300 is mounted on the hanger 112 through a connector 113. One end part of the hanger assembly 110 extends out corresponding to the notch 001, and the blade 300 is arranged at the extending part of the hanger assembly 110;

the shape of the hanger 112 is a waist-shaped plate, the width of the hanger is consistent with or slightly smaller than the gap, one end of the plate surface is provided with a second sleeving connection hole 116 matched with the boss 114, the other end of the plate surface is thickened in thickness and is provided with a third sleeving connection hole 120 for installing the connecting piece 113;

one end of the second engaging hole 116 of the hanging rack 112 passes through the gap 115 and the second engaging hole 116 engages with the boss 114, and the other end of the hanging rack 112 is exposed outside the upper cover 100.

Further, reinforcing ribs 002 are provided at both sides of the notch 001 close to the inside of the upper cover 100. The two sides of the notch 001 are used as the stress parts of the blade during grass cutting, and reinforcing ribs are arranged to strengthen the strength.

Installation steps and a cooperation principle:

firstly, placing the opening of the upper cover 001 upwards, placing the hanger connecting piece 111 into the upper cover 001, wherein the first sleeving hole 118 corresponds to the mounting column 101, as shown in fig. 3, enabling the hanger connecting piece 111 to fall to the bottom of the upper cover 001 through extrusion, at the moment, correspondingly dropping the two extending sections 119 into the notch 001, then enabling the hanger 112 to penetrate through the gap 115 from the outside and be sleeved into the boss 114, as shown in fig. 4, one thickened end of the surface of the hanger 112 is exposed on the outer wall of the upper cover 001, completing combination connection of the lower cover 200 and the upper cover 001 through the bolt 004, pressing the annular protrusion of the lower cover 200 on the hanger 112 after combination, pressing the hanger connecting piece 111 and the hanger 112 on the bottom of the upper cover 100 together, and limiting the positions of the two sides of the hanger 112 by the notch before, so that the position of the hanger 112 is completely limited through pressing, and finally installing the blade 300 on the hanger 112 through the connecting piece 113, thereby completing the complete connection.

The number of blades installed in this technical solution may also be 1, 3, 4, 5, etc., and this can be achieved only by changing the number of corresponding notches 001 and making corresponding adjustments to each mating part in the hanger assembly 110.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A grass cutting head is characterized by comprising a shell with an inner cavity; the side wall of the shell is provided with at least one notch (001), the hanger assembly (110) is detachably fixed in the shell, at least one end part of the hanger assembly (110) extends out of the corresponding notch (001), and the extending part of the hanger assembly (110) is configured to be used for installing a cutting piece.

2. The grass-mowing head according to claim 1, wherein the hanger assembly (110) comprises a hanger connecting piece (111) detachably fixed on the inner side wall of the housing, a hanger (112) is arranged on the hanger connecting piece (111), and the blade (300) is arranged on the hanger (112) through a connecting piece (113).

3. The grass-mowing head according to claim 1, wherein the notch (001) is arranged close to the bottom of the housing, the center of the bottom of the housing is provided with a raised mounting column (101), and the hanger connecting piece (111) is sleeved on the outer surface of the mounting column (101).

4. Grass-mowing head according to claim 2, characterized in that said hanger connection (111) comprises a first attachment hole (118) and a boss (114); the first sleeving holes (118) and the bosses (114) are arranged at intervals along the extending direction of the hanger connecting piece (111).

5. Grass-mowing head according to claim 4, characterized in that the end of the pylon connection (111) is provided with an extension (119).

6. Grass-mowing head according to claim 4, characterized in that said hanger connection (111) is elongated, centrally provided with a first coupling hole (118); bosses (114) are respectively arranged on the first sleeving holes (118) at intervals along two sides of the extension direction of the hanger connecting piece (111); the two ends of the hanger connecting piece (111) are respectively provided with an extension section (119).

7. The grass-mowing head according to claim 2, wherein the hanger (112) is shaped like a waist plate, the width of the hanger is matched with that of the notch (001), one end of the plate surface is provided with a second sleeving hole (116) matched with the boss (114), the other end of the plate surface is thickened in plate thickness and is provided with a third sleeving hole (120) for installing the connecting piece (113).

8. The grass-mowing head according to claim 7, wherein one end of the second sleeving connection hole (116) of the hanging rack (112) passes through the gap (115) and the second sleeving connection hole (116) is sleeved with the boss (114), and the other end of the hanging rack (112) is exposed outside the shell.

9. Grass-mowing head according to any one of claims 1 to 8, characterized in that said housing comprises an upper cover (100) and a lower cover (200) which are removably associated.

10. The grass-mowing head according to claim 9, wherein the lower cover (200) has a ring-shaped protrusion on the inside thereof, and when the upper cover (100) is combined with the lower cover (200), the ring-shaped protrusion presses against the hanging rack (112) to press the hanging rack connecting piece (111) and the hanging rack (112) together against the bottom of the upper cover (100).

11. Grass-mowing head according to claim 9, characterized in that said gap (001) is provided with stiffening ribs (002) on both sides close to the inside of the upper cover (100).

12. The utility model provides a machine of beating grass which characterized in that: having a grass-mowing head as claimed in any of claims 1 to 11.