CN214338694U

CN214338694U - High-strength four-edge flail knife

Info

Publication number: CN214338694U
Application number: CN202120344004.7U
Authority: CN
Inventors: 郑银淼
Original assignee: Yuyao Yinda Electrical Appliance Co ltd
Current assignee: Yuyao Yinda Electrical Appliance Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-10-08
Anticipated expiration: 2031-02-07

Abstract

The utility model relates to a four-edge flail knife of high strength relates to the field of lawn mower accessory, and it includes disc and four blades, four the blade passes through the screw rotation and connects in the circumference of disc, still includes the swivel becket, swivel becket and blade one-to-one fixed connection are in the disc one side of being close to the blade, one side fixedly connected with backup pad of disc is kept away from to the blade, the backup pad cover is located on the swivel becket, one side that the backup pad was kept away from to the swivel becket is equipped with the spacing ring, there is compression spring the both sides all butt of backup pad, compression spring overlaps on locating the swivel becket, the equal butt of one end that the backup pad was kept away from to compression spring is on the spacing ring. Improved the cutting edge and mow through the rotation, to the unable clearance of the better grass of toughness, the lower problem of efficiency of mowing, this application has through setting up compression spring, and compression spring orders about the blade and is in as far as possible along the radial setting of disc, has improved the structural strength of flail knife, has improved the effect of the efficiency of mowing.

Description

High-strength four-edge flail knife

Technical Field

The application relates to the field of mower accessories, in particular to a high-strength four-edge flail knife.

Background

Lawnmowers are typically provided with straight blades that provide good cutting action on generally delicate grass. However, stones in the grass, or thick, uncut shrubs, which are occasionally encountered, often result in both abortive injuries and produce an adverse impact on the engine shaft that outputs the power torque. At this point, a flail is required.

In the related art, for example, chinese patent with publication number CN208317419U discloses a disc type four-edge flail knife, which comprises a disc, a plurality of blades, an axial position screw and a nut, wherein two ends of each blade are respectively provided with a round hole, the blades are rotatably arranged on the disc through the axial position screw, one end of the axial position screw is connected with the nut, two sides of each blade are respectively provided with 2 cutting edges, and the two sides of each blade have 4 cutting edges. The utility model has the advantages that: the disc type flail knife can cut off common grass, has a certain yielding function when meeting hard objects such as stones, can effectively protect the cutting edge from being damaged, and can also partially absorb impact kinetic energy generated by high-speed collision between the cutting knife and the hard objects to protect the cutting knife, a mechanical connecting device and a power machine from being damaged or reduce the damage. The blade has four edges and can be installed on the front surface, the back surface and the turning, and one blade is equivalent to four blades. The cutter is very convenient to use and install, the service efficiency of the cutter is improved exponentially, and the cutter has practical significance for saving materials, saving energy and protecting the environment.

In view of the above-mentioned related technologies, the inventor thinks that the blade is only rotated by the disc to drive the blade to throw aside and then to cut grass by rotation, and there is still room for improvement in that grass with good toughness cannot be cleaned and the cutting efficiency is low.

SUMMERY OF THE UTILITY MODEL

Mow through the rotation in order to improve the cutting edge, to the unable clearance of the better grass of toughness, the lower problem of mowing efficiency, this application provides a four-edge flail knife of high strength.

The application provides a four sword flail knives of high strength adopts following technical scheme:

the utility model provides a four sword flail of high strength, includes disc and four blades, four the blade passes through the screw rotation to be connected in the circumference of disc, still includes the rotating ring, rotating ring and blade one-to-one fixed connection are in the disc one side of being close to the blade, one side fixedly connected with backup pad that the disc was kept away from to the blade, the backup pad cover is located on the rotating ring, one side that the backup pad was kept away from to the rotating ring is equipped with the spacing ring, the both sides of backup pad all butt have compression spring, compression spring cover is located on the rotating ring, compression spring keeps away from the equal butt of one end of backup pad on the spacing ring.

Through adopting above-mentioned technical scheme, through setting up compression spring, compression spring orders about the blade and is in as far as possible along the radial setting of disc, under the condition that does not influence the function of giving up of blade, has improved the structural strength of flail sword, has improved the efficiency of mowing.

Optionally, the number of the limiting rings is two, the two limiting rings are connected to the rotating ring in a sliding manner, and a locking assembly for fixing the limiting rings is arranged on the rotating ring.

Through adopting above-mentioned technical scheme, the spacing ring slides and connects on the rotating ring and fixed through locking Assembly for the support degree of compression spring to the blade can be adjusted, is applicable to the meadow under the different environment, has improved the application scope who gets rid of the sword.

Optionally, the locking assembly includes a locking rod, the locking rod is arranged on the limiting ring in a penetrating manner, a plurality of locking holes for the locking rod to penetrate are arranged on the rotating ring, and the locking holes are uniformly arranged along the circumferential direction of the rotating ring.

Through adopting above-mentioned technical scheme, the locking lever wears to locate spacing ring and locking hole in proper order for relative position between spacing ring and the rotating ring is fixed, has improved the stability that the spacing ring provided the holding power to compression spring.

Optionally, the locking assembly further comprises rubber rings, the number of the rubber rings corresponds to the number of the locking holes one to one, the rubber rings are fixedly connected to the side walls of the locking holes, and the locking rods penetrate through the rubber rings and are in interference fit with the rubber rings.

Through adopting above-mentioned technical scheme, the setting of rubber circle for the locking lever is worn to locate behind spacing ring and the locking hole difficult follow the locking hole and breaks away from, has improved the stability of locking subassembly.

Optionally, the locking assembly further includes a pull ring, wherein one end of the locking rod, which is far away from the rotating ring, extends out of the limiting ring, and the pull ring is fixedly connected to one end of the locking rod, which is far away from the rotating ring.

Through adopting above-mentioned technical scheme, the setting of pull ring has increased the area of gripping of locking lever, and convenience of customers has improved the efficiency that breaks away from of locking lever through gripping the pull ring and operating the locking lever.

Optionally, a notch through which the rotating ring passes is formed in the limiting ring.

Through adopting above-mentioned technical scheme, the setting of breach for the spacing ring can break away from easily on the rotating ring, makes things convenient for the spacing ring to change after damaging, has improved the change efficiency of spacing ring.

Optionally, a cover closing cover for closing the rotating ring is further arranged on the disc, the cover closing cover is close to one side of the disc and is fixedly connected with an insertion rod, the disc is provided with an insertion hole for the insertion rod to penetrate through, the insertion rod is far away from one end of the cover closing cover and is fixedly connected with a butt block, the butt block is abutted to one side, far away from the cover closing cover, of the disc, and a penetrating hole for the blade to penetrate through and slide is formed in one side of the cover closing cover.

Through adopting above-mentioned technical scheme, the lid closes the cover and is fixed in order to cover the swivel becket on the disc through inserted bar and butt piece for the difficult entering swivel becket that causes the pollution on compression spring of weeds that splashes at the in-process that uses the blade is to it, has improved swivel becket and compression spring's life.

Optionally, one side of the abutting block, which is far away from the covering cover, is provided with a guide surface.

Through adopting above-mentioned technical scheme, the setting of spigot surface, the guide butt piece contracts to the lid closes the cover in passing the disc, makes things convenient for the butt piece to pass the disc, has improved the installation effectiveness that the lid closed the cover.

Optionally, the blade is fixedly connected with a cover ring covering the through hole, and the cover ring is arranged in the cover and abuts against the inner side wall of the cover.

Through adopting above-mentioned technical scheme, the blade is rotating the in-process lid and is closed the ring and close the hole all the time butt on the lid closes the cover inside wall and lid for weeds are difficult to enter into the lid through the hole of establishing and close the cover in, have improved the lid and have closed the leakproofness that covers.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the compression spring, the compression spring drives the blade to be arranged along the radial direction of the disc as far as possible, so that the structural strength of the flail knife is improved, and the mowing efficiency is improved;

2. the limiting ring enables the supporting degree of the compression spring to the blade to be adjusted, the lawn throwing cutter is suitable for lawns in different environments, and the application range of the throwing cutter is widened;

3. the cover covers the rotating ring, so that splashed weeds are not easy to enter the rotating ring and the compression spring to pollute the rotating ring and the compression spring, and the service lives of the rotating ring and the compression spring are prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a high-strength four-edge flail knife in an embodiment of the present application.

Fig. 2 is an exploded view of a high strength four-edge flail in an embodiment of the present application.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is an exploded view of the disc, blade and cover in an embodiment of the present application.

Description of reference numerals: 1. a disc; 11. inserting holes; 2. a blade; 21. a support plate; 22. covering and closing the ring; 3. a reinforcement device; 31. a rotating ring; 311. a locking hole; 32. a compression spring; 33. a limiting ring; 331. a notch; 34. a locking assembly; 341. a locking lever; 342. a pull ring; 343. a rubber ring; 35. covering the cover; 351. a plug rod; 352. a butting block; 3521. a guide surface; 353. and (5) perforating holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses four sword flail knives of high strength. Referring to fig. 1, the high-strength four-edge flail knife comprises a disc 1, a blade 2 and a reinforcing device 3.

Referring to fig. 2 and 3, the number of the blades 2 is four, four blades 2 are uniformly installed at one side along the circumferential direction of the disc 1, and the four blades 2 are rotatably connected to the disc 1 by screws.

The quantity of strengthening device 3 corresponds with blade 2 quantity, strengthens device 3 one-to-one and installs on blade 2, has strengthened the structural strength of blade 2.

The reinforcing device 3 comprises a rotating ring 31, a compression spring 32, a limiting ring 33, a locking assembly 34 and a cover 35.

The rotating ring 31 is fixedly connected to the disc 1 and is arranged in parallel with the disc 1, the blade 2 is arranged between the rotating ring 31 and the disc 1, the rotating ring 31 and an arc formed by rotation of the blade 2 are coaxially arranged, a supporting plate 21 is fixedly connected to one side, close to the rotating ring 31, of the blade 2, the supporting plate 21 and the blade 2 are vertically arranged, and the supporting plate 21 is sleeved on the rotating ring 31. The number of the limiting rings 33 is two, and the two limiting rings 33 are both mounted on the rotating ring 31. The number of the compression springs 32 is also two, one end of each of the two compression springs 32 abuts against two sides of the support plate 21, and one end of each of the two compression springs 32 away from the support plate 21 abuts against the corresponding limiting ring 33, so as to support the support plate 21.

The limiting ring 33 slides on the rotating ring 31, so that the compression amount of the compression spring 32 by the limiting ring 33 matching with the support plate 21 can be adjusted.

The limiting ring 33 is provided with a notch 331, and the rotating ring 31 can be conveniently replaced after passing through the notch 331.

A locking assembly 34 is further mounted on the rotating ring 31 to fix the relative position of the limiting ring 33 and the rotating ring 31.

The locking assembly 34 includes a locking bar 341, a rubber ring 343 and a pull ring 342.

The rotating ring 31 is provided with a plurality of locking holes 311, the locking holes 311 are uniformly arranged along the circumferential direction of the rotating ring 31, and the locking rod 341 penetrates through the limiting ring 33 and then is inserted into one of the locking holes 311, so that the limiting ring 33 and the rotating ring 31 are fixed.

The number of the rubber rings 343 corresponds to the number of the locking holes 311, the rubber rings 343 are embedded and adhered in the locking holes 311 in a one-to-one correspondence manner, the outer circumferential side wall of the rubber rings 343 abuts against the inner circumferential side wall of the locking holes 311, when the locking rod 341 is inserted into the locking holes 311, the locking rod 341 penetrates through the rubber rings 343, and the locking rod 341 is in interference fit with the rubber rings 343, so that the locking rod 341 is not easily disengaged from the locking holes 311.

One end of the locking rod 341, which is far away from the rotating ring 31, extends out of the limit ring 33, the number of the pull rings 342 is two, and the two pull rings 342 are both fixedly connected to the part of the locking rod 341, which extends out of the limit ring 33, so that a user can conveniently operate the locking rod 341 by holding the pull rings 342.

Referring to fig. 4, the lid closes the cover 35 and installs in disc 1 one side that is close to blade 2, the quantity that the lid closed the cover 35 is four, four lids close the cover 35 one-to-one lid and close on swivel becket 31, the lid closes one side fixedly connected with spliced pole 351 that the cover 35 is close to disc 1, spliced pole 351 sets up along disc 1's axial, the quantity that here uses spliced pole 351 is four for the example, four spliced poles 351 set up along the circumference that the lid closed cover 35, be equipped with spliced eye 11 on disc 1, spliced pole 351 wears to establish and passes in the spliced eye 11 and extend to disc 1 and keep away from the one side that the lid closed cover 35. One end fixedly connected with butt piece 352 that grafting pole 351 kept away from lid and close cover 35, butt piece 352 are located disc 1 and keep away from the one side that lid closed cover 35, and butt piece 352 butt is kept away from the one side that lid closed cover 35 in disc 1 for lid closed cover 35 is difficult to take off from disc 1.

The abutting block 352 is provided with a guide surface 3521, so that the side wall of the abutting block 352 away from the covering cover 35 is inclined towards the covering cover 35 from one side close to the axis of the covering cover 35 to one side away from the axis of the covering cover 35, and the abutting block 352 is guided to pass through the inserting hole 11.

The lid closes and is equipped with the through-going hole 353 that supplies blade 2 to wear to establish and slide on the cover 35, and through-going hole 353 closes the circumference setting of cover 35 along the lid, and through-going hole 353 is the major arc setting for the lid closes the cover 35 and is difficult for causing the interference to the rotation of blade 2.

Fixedly connected with lid closes ring 22 on blade 2, and lid closes ring 22 and lid and closes cover 35 and be coaxial setting, and lid closes ring 22 lid and closes through-hole 353 and butt on the inside wall that the lid closed cover 35 for the lid closes the cover 35 and seals.

The implementation principle of the high-strength four-edge flail knife of the embodiment of the application is as follows: before use, the pull ring 342 is held, the bolt is pulled out of the locking hole 311, the bolt is inserted into the corresponding locking hole 311 to adjust the compression amount of the compression spring 32, the insertion rod 351 on the cover 35 penetrates through the corresponding insertion hole 11, and the abutting block 352 abuts against the disc 1 to cover the reinforcing device 3, so that the installation is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a four sword flail of high strength, includes disc (1) and four blades (2), four blade (2) rotate through the screw and connect in the circumference of disc (1) on its characterized in that: the novel cutting blade is characterized by further comprising a rotating ring (31), the rotating ring (31) and the cutting blade (2) are fixedly connected to one side, close to the cutting blade (2), of the disc (1) in a one-to-one correspondence mode, a supporting plate (21) is fixedly connected to one side, far away from the disc (1), of the cutting blade (2), the supporting plate (21) is sleeved on the rotating ring (31), a limiting ring (33) is arranged on one side, far away from the supporting plate (21), of the rotating ring (31), compression springs (32) are abutted to two sides of the supporting plate (21), the compression springs (32) are sleeved on the rotating ring (31), and one ends, far away from the supporting plate (21), of the compression springs (32) are abutted to the limiting ring (33).

2. A high strength four-edged flail knife according to claim 1, wherein: the quantity of spacing ring (33) is two, two spacing ring (33) slide and connect on rotating ring (31), be equipped with on rotating ring (31) with fixed locking Assembly (34) of spacing ring (33).

3. A high strength four-edged flail knife according to claim 2, wherein: the locking assembly (34) comprises a locking rod (341), the locking rod (341) penetrates through the limiting ring (33), a plurality of locking holes (311) for the locking rod (341) to penetrate through are formed in the rotating ring (31), and the locking holes (311) are uniformly formed in the circumferential direction of the rotating ring (31).

4. A high strength four-edged flail knife according to claim 3, wherein: the locking assembly (34) further comprises rubber rings (343), the number of the rubber rings (343) corresponds to the number of the locking holes (311) one by one, the rubber rings (343) are fixedly connected to the side walls of the locking holes (311), and the locking rods (341) penetrate through the rubber rings (343) and are in interference fit with the rubber rings (343).

5. A high strength four-edged flail knife according to claim 3, wherein: the locking assembly (34) further comprises a pull ring (342), one end, far away from the rotating ring (31), of the locking rod (341) extends out of the limiting ring (33), and the pull ring (342) is fixedly connected to one end, far away from the rotating ring (31), of the locking rod (341).

6. A high strength four-edged flail knife according to claim 1, wherein: the limiting ring (33) is provided with a notch (331) for the rotating ring (31) to pass through.

7. A high strength four-edged flail knife according to claim 1, wherein: still be equipped with the lid that the lid closed swivel becket (31) on disc (1) and close cover (35), the lid closes one side fixedly connected with grafting pole (351) that cover (35) is close to disc (1), be equipped with on disc (1) and supply grafting pole (351) to wear to establish spliced eye (11), one end fixedly connected with butt piece (352) that the lid closed cover (35) was kept away from in grafting pole (351), butt piece (352) butt is kept away from the one side that the lid closed cover (35) in disc (1), the one side that the lid closed cover (35) is equipped with and supplies blade (2) to wear to establish and wear to slide to establish worn to establish hole (353).

8. A high strength four-edged flail knife according to claim 7, wherein: and a guide surface (3521) is arranged on one side of the abutting block (352) far away from the covering cover (35).

9. A high strength four-edged flail knife according to claim 7, wherein: the cover that fixedly connected with lid closed through hole (353) closes ring (22) on blade (2), lid closes ring (22) and locates in the lid closes cover (35) and butt on the inside wall that the lid closed cover (35).