CN211831920U - Flat grass mowing head - Google Patents

Abstract

The utility model discloses a flat grass-mowing head, which comprises a grass-mowing head body, wherein the grass-mowing head body comprises a wire reel, a grass-mowing head cover, a grass-mowing rope and a grass-mowing head seat, the grass-mowing head cover and the grass-mowing head seat are fixedly connected in a detachable mode, the wire reel is arranged in a cavity formed between the grass-mowing head cover and the grass-mowing head seat, and the diameter of a wire column of the wire reel is 57.2mm +/-5 mm; the wire spool and the grass cutting head seat can be selectively configured to be relatively static or relatively rotating; the grass cutting rope penetrates through the rope penetrating channel of the wire spool, then the grass cutting rope is wound on the wire column of the wire spool, and two ends of the grass cutting rope respectively penetrate out of two rope outlets which are formed on the grass cutting head seat and are arranged in a radial direction oppositely; the vertical distance between the lowest point of the grass cutting head body and the center point of the rope outlet is 31.6mm +/-5 mm. The utility model discloses need not to bow when beating grass and just can beat the grass work with the slope setting of grass-cutting head, it is more laborsaving to beat grass.

Description

Flat grass mowing head

Technical Field

The utility model relates to a grass-mowing head, more specifically say, relate to a flat grass-mowing head.

Background

The grass trimmer is a universal and practical garden tool, and is particularly suitable for trimming ground grass such as villa lawns, garden lawns and the like. The existing grass mowing head is mostly a mini-type knocking type line outgoing grass mower, and the grass mowing principle is that after the grass mowing head rotates at a high speed, a grass mowing rope extending out of the grass mowing head is used for mowing grass stalks to finish grass mowing operation. The rope of beating grass can serious wearing and tearing after operation a period of time, just need emit a section line through the mode of strikeing the unwrapping wire this moment in order to reach the purpose that continues can beat the grass, and after the equal wear damage of a whole rope of beating the grass, just can change a new rope of beating the grass fast through rotatory striking head.

The distance requirement between the minimum point of the head of beating grass and the play rope outlet central point of beating grass overhead has been neglected to current head of beating grass, only bow to beat the head slope setting of beating grass in the in-service use, just can make the rope tip of beating grass more press close to the grass root, beat grass according to above-mentioned mode for a long time and easily become the waist and ache and go back to the back, and because the head of beating grass is the slope setting, the rope both ends of beating grass that stretch out the head of beating grass can be one high one low, the grass surface height after beating grass like this is uneven, it is inconvenient to maintain, it takes time.

Disclosure of Invention

1. Technical problem to be solved by the utility model

An object of the utility model is to overcome foretell not enough, provide a laborsaving type flat head of beating grass, adopt the technical scheme of the utility model, simple structure, design benefit shortens the distance between the head of beating grass minimum point and the overhead play rope mouth central point of beating grass furthest under the prerequisite of rope length is beaten grass to the assurance for need not to bow when beating grass and will beat the slope of grass head and set up and just can beat the work of grass, it is more laborsaving to beat grass, and because the head of beating grass tends the level setting, consequently beat the rope both ends of beating grass and beat the grass uniformity height, beat grass more swiftly, beat grass more level and more smoothly.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a flat grass-mowing head, which comprises a grass-mowing head body, wherein the grass-mowing head body comprises a wire spool, a grass-mowing head cover, a grass-mowing rope and a grass-mowing head seat, the grass-mowing head cover and the grass-mowing head seat are fixedly connected in a detachable mode, the wire spool is arranged in a cavity formed between the grass-mowing head cover and the grass-mowing head seat, and the diameter of a wire column of the wire spool is 57.2mm +/-5 mm; the wire spool and the grass cutting head seat can be selectively configured to be relatively static or relatively rotating; the two ends of the grass mowing rope respectively penetrate out of two rope outlets which are formed on the grass mowing head seat and are arranged oppositely in the radial direction; the vertical distance L between the lowest point of the grass cutting head body and the center point of the rope outlet is 31.6mm +/-5 mm.

Furthermore, the grass cutting rope is arranged on the rope penetrating channel of the wire spool in a penetrating mode and then wound on the wire column of the wire spool.

Furthermore, the grass cutting head seat comprises a disc-shaped cover body; the surface of the disc-shaped cover body facing the ground is an arc surface, an included angle between a tangent plane of a lower starting point of the arc surface and a horizontal plane is 0 degree, an included angle alpha between a tangent plane of an upper terminal point of the arc surface and the horizontal plane is 30 degrees to 45 degrees, and the radius of an arc section between the lower starting point of the arc surface and the upper terminal point of the arc surface is 40 mm.

Furthermore, the surface of the disk-shaped cover body facing the ground is a honeycomb surface.

Furthermore, the grass mowing head body also comprises an impact head, the upper end of the impact head is detachably connected with the wire column of the wire spool, and the lower end of the impact head extends out of an impact head mounting hole formed in the grass mowing head seat.

Furthermore, the lower surface of the wire column of the wire spool is provided with a section of protruding connecting sleeve, the connecting sleeve is provided with two clamping grooves which are oppositely arranged along the radial direction, the upper end surface of the impact head is inwards concave to form an insertion hole for the connecting sleeve to be inserted, the depth of the insertion hole is matched with the length of the connecting sleeve, the inner side surface of the insertion hole is provided with clamping blocks corresponding to the two clamping grooves, and the upper end of the impact head and the wire column of the wire spool are connected in a mode that the insertion hole is inserted into the connecting sleeve through the connecting sleeve and the clamping grooves are clamped with the clamping blocks.

Furthermore, the grass mowing head body also comprises an impact head, the upper end of the impact head is integrally formed on the lower surface of the wire spool, and the lower end of the impact head extends out of an impact head mounting hole formed in the grass mowing head seat.

Furthermore, a plurality of notches for inserting fingers are uniformly distributed on the impact head along the circumferential direction of the impact head.

Furthermore, the bottom wall of each notch groove is concavely provided with a groove for applying force by fingers.

Furthermore, a metal embedding cover is integrally formed in the middle of the surface of the impact head for impacting the ground, and a tool connecting hole for inserting an external tool into the rotary impact head is formed in the metal embedding cover.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) the utility model discloses a flat grass mowing head, the vertical distance between the lowest point of its grass mowing head body and the central point of the rope outlet on the grass mowing head body is 31.6mm +/-5 mm, the line post diameter of the wire reel in the grass mowing head body is 57.2mm +/-5 mm, the distance between the lowest point of the grass mowing head and the central point of the rope outlet on the grass mowing head is shortened to the maximum extent under the premise of ensuring the length of the grass mowing rope, so that grass mowing can be carried out without bending to obliquely set the grass mowing head when grass mowing is carried out, grass mowing is more labor-saving, and the grass mowing head tends to be horizontally arranged, so that the grass mowing consistency at the two ends of the grass mowing rope is high, grass mowing is more rapid, and grass mowing is more smooth;

(2) the utility model discloses a flat grass-mowing head, its discoid lid is used for the surface towards ground to be the cambered surface, the contained angle between the lower starting point tangent plane of this cambered surface and the horizontal plane is 0, the contained angle between the upper terminal point tangent plane of cambered surface and the horizontal plane is between 38 to 39, can avoid the grass-mowing head seat well and be used for the surface wear towards ground, guaranteed life, and discoid lid is used for the surface towards ground to be the honeycomb face, play the noise reduction effect;

(3) the utility model discloses a flat head of beating grass, its striking head both can be dismantled with the wire reel and be connected, also can with wire reel integrated into one piece, the use is nimble, and strike overhead along its circumference equipartition have a plurality of scarce grooves that are used for inserting the finger, the diapire indent of every scarce groove is formed with the recess so that the finger application of force, simple structure, design benefit, the depth of scarce groove can also become shallow when shortening striking head height to the utmost, the design of recess has guaranteed that the finger application of force is convenient in this situation, it is convenient that the wire reel is received to rotate striking head convenience;

(4) the utility model discloses a head is beaten to flat form, its striking head are used for striking the surperficial intermediate position department integrated into one piece on ground has the metal to inlay and cover, are equipped with on this metal to be so that outside instrument inserts the instrument connecting hole of rotatory striking head, simple structure, design benefit for the mode of rotatory striking head is not single, also can rely on outside instrument to rotate and receive line work.

Drawings

FIG. 1 is a front view of a flat grass-mowing head according to the present invention;

FIG. 2 is a side view of a flat grass-mowing head according to the present invention;

FIG. 3 is a cross-sectional view of a flat grass-mowing head of embodiment 2 of the present invention;

FIG. 4 is a reverse exploded view of a flat grass-mowing head of embodiment 2 of the present invention;

FIG. 5 is a front exploded view of a flat grass-mowing head of embodiment 2 of the present invention;

FIG. 6 is a cross-sectional view of a flat grass-mowing head of the embodiment 1 of the present invention;

FIG. 7 is a front exploded view of a flat grass-mowing head of embodiment 1 of the present invention;

fig. 8 is a reverse explosion diagram of a flat grass-mowing head of the embodiment 1 of the invention.

The reference numerals in the schematic drawings illustrate: 1. beating a straw rope; 2. a wire spool; 2-1, a wire column; 2-2, stringing holes; 2-3, installing a cavity; 2-4, mounting a latch; 2-5, column holes; 2-6, lower latch; 2-7, connecting sleeves; 2-7-1, a clamping groove; 3. a grass cutting head seat; 3-1, a disc-shaped cover body; 3-2-1, outer side wall; 3-2-2, inner side wall; 3-2-3, reinforcing ribs; 3-3, a rope outlet; 3-4, an impact head mounting hole; 3-5, driving teeth; 3-6, elastic hook; 5. beating the grass head cover; 5-2, mounting columns; 5-3, blocking teeth; 5-4, bayonet; 6. a striking head; 6-1, notching; 6-2, a groove; 6-3, embedding a metal cover; 6-4, connecting holes of tools; 6-5, a jack; 6-5-1, a fixture block; 7. a pressure spring; 8. a compressed spring gasket.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Example 1

With reference to fig. 1, 2 and 7, the flat grass mowing head of the embodiment includes a grass mowing head body, the grass mowing head body includes a wire spool 2, a grass mowing head cover 5, a grass mowing rope 1 and a grass mowing head seat 3, the grass mowing head cover 5 and the grass mowing head seat 3 are fixedly connected in a detachable manner, specifically, two elastic hooks 3-6 which are arranged in a radial direction are arranged on the grass mowing head seat 3, and bayonets 5-4 which are engaged with the elastic hooks 3-6 are arranged at positions on the grass mowing head cover corresponding to the two elastic hooks 3-6; the wire spool 2 is arranged in a cavity formed between the grass mowing head cover 5 and the grass mowing head seat 3, and the wire spool 2 and the grass mowing head seat 3 can be selectively configured to be relatively static or relatively rotary; after the grass mowing rope 1 is clamped on a rope bayonet arranged on a middle flange of the wire spool 2, the grass mowing rope 1 is manually wound on a string post 2-1 of the wire spool 2; two ends of the grass beating rope 1 respectively penetrate out of two rope outlets 3-3 on the grass beating head body; the vertical distance between the lowest point of the grass mowing head body and the central point of the rope outlet 3-3 is 31.6mm +/-5 mm, the diameter of the string column 2-1 of the wire spool 2 is 57.2mm +/-5 mm, the distance between the lowest point of the grass mowing head and the central point of the rope outlet on the grass mowing head is shortened to the maximum extent on the premise of ensuring the length of the grass mowing rope, grass mowing can be carried out without bending down to obliquely arrange the grass mowing head during grass mowing, grass mowing is more labor-saving, and the grass mowing head tends to be horizontally arranged, so the grass mowing consistency at the two ends of the grass mowing rope is high, grass mowing is quicker, and grass mowing is smoother; specifically, in the embodiment, the vertical distance L between the lowest point of the grass cutting head body and the center point of the rope outlet 3-3 is 31.6mm, and the diameter of the string column 2-1 of the wire spool 2 is 57.2 mm.

Then, the grass cutting head seat 3 comprises a disc-shaped cover body 3-1; the disc-shaped cover body 3-1 is used for taking the surface facing the ground as an arc surface, the included angle between the tangent plane of the lower starting point of the arc surface and the horizontal plane is 0 degree, the included angle alpha between the tangent plane of the upper end point of the arc surface and the horizontal plane is 30 degrees to 45 degrees, the radius of the arc section between the lower starting point of the arc surface and the upper end point of the arc surface is 40mm, the surface abrasion of the grass cutting head seat facing the ground can be well avoided, the service life is ensured, and particularly, the included angle alpha between the tangent plane of the upper end point of the arc surface and the horizontal plane is 38.5; the surface of the disc-shaped cover body 3-1 facing the ground is a honeycomb surface, so that the noise reduction effect is achieved; the disc-shaped cover body 3-1 is used for vertically extending a circumferential side wall along the circumferential direction of the surface facing away from the ground, the circumferential side wall is composed of an inner side wall 3-2-2 and an outer side wall 3-2-1, and the inner side wall 3-2-2 and the outer side wall 3-2-1 are connected through a plurality of reinforcing ribs 3-2-3;

continuing with fig. 7 and 6, the upper end of the impact head 6 is integrally formed on the lower surface of the wire reel, the lower end of the impact head 6 extends out of an impact head mounting hole 3-4 formed in the grass-mowing head seat 3, the impact head 6 is mounted on the impact head mounting hole 3-4 in a concave-convex step matching mode, specifically, a circle of annular boss is formed on the surface edge of the impact head 6 facing the bottom surface, and a concave step for clamping the annular boss is formed in the impact head mounting hole 3-4; a plurality of notches 6-1 for inserting fingers are uniformly distributed on the impact head 6 along the circumferential direction, a metal embedding cover 6-3 is integrally formed at the middle position of the surface of the impact head 6 for impacting the ground, and a tool connecting hole 6-4 for inserting an external tool into the rotary impact head 6 is formed in the metal embedding cover 6-3;

continuing and combining with the figure 8, the inner bottom wall of the grass head cover 5 is provided with an installation column 5-2, and a plurality of blocking teeth 5-3 are uniformly distributed on the inner bottom wall of the grass head cover 5 along the circumferential direction; the upper surface of a wire column 2-1 of the wire spool 2 is sunken to form an installation cavity 2-3, and a plurality of upper clamping teeth 2-4 matched with the blocking teeth 5-3 are uniformly distributed on the circumferential surface of the installation cavity 2-3 along the circumferential direction; the bottom wall of the mounting cavity 2-3 is provided with a column hole 2-5 penetrating through the linear column 2-1, and the mounting column 5-2 is movably inserted into the column hole 2-5; a pressure spring 7 is sleeved on the mounting column 5-2, one end of the pressure spring 7 abuts against the inner bottom wall of the grass head cover 5, the other end of the pressure spring 7 abuts against the bottom wall of the mounting cavity 2-3, and a pressure spring gasket 8 is arranged at one end, which abuts against the mounting cavity 2-3, of the pressure spring 7; a plurality of lower clamping teeth 2-6 are uniformly distributed on the edge of the lower surface of the wire winding disc 2 along the circumferential direction, and a plurality of driving teeth 3-5 matched with the lower clamping teeth 2-6 are uniformly distributed on the inner bottom wall of the grass cutting head seat 3 along the circumferential direction; the numbers of the lower latch 2-6, the driving tooth 3-5, the upper latch 2-4 and the blocking tooth 5-3 are consistent, wherein the upper latch 2-4 and the lower latch 2-6 are arranged in alignment along the vertical direction, the driving tooth 3-5 and the blocking tooth 5-3 are arranged in a staggered manner in the vertical direction, and the lower surface of the lower latch 2-6 is an inclined surface which is convenient for the driving tooth 3-5 to be disengaged from the lower latch 2-6 during winding;

in a free state, the driving teeth 3-5 are meshed with the lower clamping teeth 2-6, the blocking teeth 5-3 are disengaged from the upper clamping teeth 2-4, and the wire spool 2 can rotate for a certain angle relative to the grass cutting head seat 3; in a winding state, after the grass mowing rope 1 is clamped on a rope bayonet arranged on a middle flange of the winding disc 2, the grass mowing rope 1 is manually wound on a string post 2-1 of the winding disc 2; in a line releasing state, the impact head 6 is impacted, the driving teeth 3-5 are disengaged from the lower clamping teeth 2-6, the blocking teeth 5-3 are engaged with the upper clamping teeth 2-4, and the wire spool 2 can be restored to a free state under the action of the pressure spring 7 after rotating for a preset angle in a second direction relative to the grass cutting head seat 3.

Example 2

With reference to fig. 3, the basic structure of the flat grass-mowing head of the present embodiment is the same as that of embodiment 1, except that: the grass mowing rope 1 is arranged on the rope penetrating channel of the wire spool 2 in a penetrating mode, and then the grass mowing rope 1 is wound on a wire post 2-1 of the wire spool 2; the stringing holes 2-2 are formed in the positions, corresponding to the two ends of the stringing channel, of the middle flange edge of the wire spool 2, the stringing holes 2-2 are horn-shaped and have the function of stringing and guiding, the structure is simple, the design is ingenious, the height of the wire spool is shortened to the maximum extent, meanwhile, the stringing holes can also become flatter, and the horn-shaped stringing holes ensure that a grass mowing rope can smoothly penetrate into the stringing channel from the stringing holes;

continuing and combining with the figure 4, the grass mowing head body also comprises an impact head 6, the upper end of the impact head 6 is detachably connected with the line post 2-1 of the wire spool 2, and the lower end of the impact head 6 extends out of an impact head mounting hole 3-4 formed in the grass mowing head seat 3; a section of connecting sleeve 2-7 protrudes from the lower surface of the wire column 2-1 of the wire spool 2, two clamping grooves 2-7-1 which are arranged oppositely along the radial direction are arranged on the connecting sleeve 2-7, an inserting hole 6-5 which is convenient for the connecting sleeve 2-7 to be inserted is formed in the upper end surface of the impact head 6 in a concave mode, the depth of the inserting hole 6-5 is matched with the length of the connecting sleeve 2-7, clamping blocks 6-5-1 are arranged on the inner side surface of the inserting hole 6-5 at positions corresponding to the two clamping grooves 2-7-1, the upper end of the impact head 6 and the wire column 2-1 of the wire spool 2 are inserted into the inserting hole 6-5 through the connecting sleeve 2-7, and the clamping grooves 2-7-1 are connected in a clamping mode with the clamping; the lower end of the impact head 6 extends out of an impact head mounting hole 3-4 formed in the grass-mowing head seat 3, and the impact head 6 is mounted on the impact head mounting hole 3-4 in a concave-convex step matching mode;

continuing and combining with figure 5, the striking head 6 is uniformly provided with a plurality of notches 6-1 for inserting fingers along the circumferential direction, the bottom wall of each notch 6-1 is concave to form a groove 6-2 for applying force by the fingers, the structure is simple, the design is ingenious, the depth of the notch can be reduced while the height of the striking head is shortened to the maximum extent, the design of the notches ensures that the force is conveniently applied by the fingers, and the striking head is convenient to rotate, namely, the wire winding of the wire winding disc is convenient; the middle position of the surface of the impact head 6 for impacting the ground is integrally formed with a metal embedded cover 6-3, the metal embedded cover 6-3 is provided with a tool connecting hole 6-4 for inserting an external tool into the rotary impact head 6, the structure is simple, the design is ingenious, the mode of rotating the impact head is not single, and the rotary wire collecting work can be carried out by means of the external tool; in the embodiment, the tool connecting hole 6-4 is a threaded hole of a hexagon nut fixedly arranged on the metal embedded cover 6-3.

In a free state, the driving teeth 3-5 are meshed with the lower clamping teeth 2-6, the blocking teeth 5-3 are disengaged from the upper clamping teeth 2-4, and the wire spool 2 can rotate for a certain angle relative to the grass cutting head seat 3; in a winding state, the impact head 6 is rotated, the driving teeth 3-5 are disengaged from the lower clamping teeth 2-6, the blocking teeth 5-3 are engaged with the upper clamping teeth 2-4, and the wire winding disc 2 is restored to a free state under the action of the pressure spring 7 after rotating for a preset angle in a first direction relative to the grass cutting head seat 3; in a line releasing state, the impact head 6 is impacted, the driving teeth 3-5 are disengaged from the lower clamping teeth 2-6, the blocking teeth 5-3 are engaged with the upper clamping teeth 2-4, and the wire spool 2 can be restored to a free state under the action of the pressure spring 7 after rotating for a preset angle in a second direction relative to the grass cutting head seat 3.

Example 3

The basic structure of the flat grass-mowing head of the embodiment is the same as that of the embodiment 1, and the difference is that: the vertical distance L between the lowest point of the grass mowing head body and the center point of the rope outlet 3-3 is 36.6mm, and the diameter of the string column 2-1 of the wire spool 2 is 52.2 mm; the included angle alpha between the upper end point tangent plane of the cambered surface and the horizontal plane is 39 degrees.

Example 4

The basic structure of the flat grass-mowing head of the embodiment is the same as that of the embodiment 1, and the difference is that: the vertical distance L between the lowest point of the grass mowing head body and the center point of the rope outlet 3-3 is 26.6mm, and the diameter of the string column 2-1 of the wire spool 2 is 63.2 mm; the included angle alpha between the upper terminal tangent plane of the cambered surface and the horizontal plane is 38 degrees.

The utility model discloses a head is beaten to laborsaving flat form, moreover, the steam generator is simple in structure, design benefit shortens the distance between the head minimum point of beating the grass and the overhead play rope mouth central point of beating the grass furthest under the prerequisite of guaranteeing to beat the grass rope length, make and need not to bow when beating the grass and will beat the slope of grass and set up and just can beat the work of grass, it is more laborsaving to beat the grass, and because the head of beating the grass tends horizontal setting, consequently beat the grass rope both ends and beat the grass uniformity height, beat the grass more swiftly, beat the grass more level and smooth.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a flat head of beating grass, includes the head body of beating grass, its characterized in that: the grass mowing head comprises a grass mowing head body and a grass mowing head seat, wherein the grass mowing head body comprises a wire spool (2), a grass mowing head cover (5), a grass mowing rope (1) and the grass mowing head seat (3), the grass mowing head cover (5) and the grass mowing head seat (3) are fixedly connected in a detachable mode, the wire spool (2) is arranged in a cavity formed between the grass mowing head cover (5) and the grass mowing head seat (3), and the diameter of a wire column (2-1) of the wire spool (2) is 57.2mm +/-5 mm; the wire spool (2) and the grass cutting head seat (3) can be selectively configured to be relatively static or relatively rotating; the grass mowing rope (1) is wound on a string post (2-1) of the wire spool (2), and two ends of the grass mowing rope (1) respectively penetrate out of two rope outlets (3-3) which are formed on the grass mowing head seat (3) and are arranged oppositely in the radial direction; the vertical distance L between the lowest point of the grass cutting head body and the central point of the rope outlet (3-3) is 31.6mm +/-5 mm.

2. A flathead as claimed in claim 1, characterized in that: the grass beating rope (1) is arranged on the rope penetrating channel of the wire spool (2) in a penetrating mode, and then the grass beating rope (1) is wound on the wire column (2-1) of the wire spool (2).

3. A flathead as claimed in claim 1, characterized in that: the grass mowing head seat (3) comprises a disc-shaped cover body (3-1); the surface of the disc-shaped cover body (3-1) facing the ground is an arc surface, an included angle between a lower starting point tangent plane of the arc surface and a horizontal plane is 0 degree, an included angle alpha between an upper terminal point tangent plane of the arc surface and the horizontal plane is 30 degrees to 45 degrees, and the radius of an arc section between the lower starting point of the arc surface and an upper terminal point of the arc surface is 40 mm.

4. A flathead as claimed in claim 3, characterized in that: the surface of the disc-shaped cover body (3-1) facing the ground is a honeycomb surface.

5. A flathead as claimed in claim 1, characterized in that: the grass mowing head body further comprises an impact head (6), the upper end of the impact head (6) is detachably connected with a string post (2-1) of the wire spool (2), and the lower end of the impact head (6) extends out of an impact head mounting hole (3-4) formed in the grass mowing head seat (3).

6. A flathead as claimed in claim 5, characterized in that: the lower surface of a wire column (2-1) of the wire winding disc (2) is provided with a section of protruding connecting sleeve (2-7), the connecting sleeve (2-7) is provided with two clamping grooves (2-7-1) which are arranged oppositely in the radial direction, the upper end surface of the impact head (6) is inwards concave to form an inserting hole (6-5) for the connecting sleeve (2-7) to be inserted into, the depth of the inserting hole (6-5) is matched with the length of the connecting sleeve (2-7), clamping blocks (6-5-1) are arranged on the inner side surface of the inserting hole (6-5) corresponding to the positions of the two clamping grooves (2-7-1), the upper end of the impact head (6) and the wire column (2-1) of the wire winding disc (2) are inserted into the inserting hole (6-5) through the connecting sleeve (2-7), and the clamping grooves (2-7-1) are clamped with the clamping blocks (6-5-1 And (4) connecting.

7. A flathead as claimed in claim 1, characterized in that: the grass mowing head body further comprises an impact head (6), the upper end of the impact head (6) is integrally formed on the lower surface of the wire spool, and the lower end of the impact head (6) extends out of an impact head mounting hole (3-4) formed in the grass mowing head seat (3).

8. A flathead as claimed in claim 5, 6 or 7, characterized in that: the striking head (6) is uniformly distributed with a plurality of notches (6-1) along the circumferential direction for inserting fingers.

9. A flathead as claimed in claim 8, characterized in that: the bottom wall of each notch groove (6-1) is concavely provided with a groove (6-2) for applying force by fingers.

10. A flathead as claimed in claim 8, characterized in that: the middle position of the surface of the impact head (6) for impacting the ground is integrally formed with a metal embedded cover (6-3), and the metal embedded cover (6-3) is provided with a tool connecting hole (6-4) for inserting an external tool into the rotary impact head.

Images