CN217284088U - Double-deck lawn mower tool bit - Google Patents
Double-deck lawn mower tool bit Download PDFInfo
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- CN217284088U CN217284088U CN202122795865.XU CN202122795865U CN217284088U CN 217284088 U CN217284088 U CN 217284088U CN 202122795865 U CN202122795865 U CN 202122795865U CN 217284088 U CN217284088 U CN 217284088U
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- blade
- front side
- cutter bar
- cutting
- double
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
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Abstract
The utility model discloses a double-deck lawn mower tool bit, including square pipe, lower floor's cutter arbor, upper cutter arbor, two cutting blades and many to the slope blade. The cutter head of the double-layer mower utilizes the square tube to drive the lower-layer cutter bar and the upper-layer cutter bar to rotate, so that the two cutting blades cut weeds in rotation, and each pair of inclined blades smashes the cut weeds and discharge the weeds out of the cutting machine; utilize lower floor's cutter arbor and upper cutter arbor to form double-deck cutting and smash, have better cutting crushing effect.
Description
Technical Field
The utility model relates to a lawn mower tool bit, especially a double-deck lawn mower tool bit.
Background
At present, most of existing mower blades are of single-layer blade structures, so that the existing mower blades only have a weed cutting function simply when used, the blades need to be replaced integrally after being worn, and the cut weeds cannot be crushed and wind power output can not be achieved. There is a need for a double deck mower blade that can crush cut weeds and facilitate the transfer of the crushed weeds.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: provided is a double-deck mower head capable of crushing cut weeds and facilitating transfer of the crushed weeds.
The technical scheme is as follows: the utility model provides a double-layer mower cutter head, which comprises a square tube, a lower layer cutter bar, an upper layer cutter bar, two cutting blades and a plurality of pairs of inclined blades; the square tube vertically penetrates through and is fixed in the middle of the upper-layer cutter bar, and the upper-layer cutter bar is divided into two upper-layer branches by the square tube; the lower end of the square tube is fixed in the middle of the upper side surface of the lower-layer cutter bar, and the lower-layer cutter bar is divided into two lower-layer branches by the square tube; the lower layer cutter bar and the upper layer cutter bar are crossed in a cross shape in a overlooking state; the two cutting blades are respectively arranged on the front side edges of the two lower-layer branches in the rotating direction and are used for cutting weeds; each pair of inclined blades is installed on the upper layer of cutter bar and is used for crushing weeds.
Furthermore, a plurality of blade mounting grooves are formed in the upper side surface and the lower side surface of the upper layer branch at intervals; each blade mounting groove is provided with a crushing blade seat; each pair of inclined blades are respectively arranged on each crushing blade seat, and the two inclined blades on the same crushing blade seat are distributed in a V shape; the cutting edge of each inclined blade faces the direction of rotation.
Furthermore, a crushing blade is arranged on the front side edge of the upper layer branch in the rotating direction.
Furthermore, a front side step groove is arranged on the lower side surface of the lower layer branch and extends to the front side edge of the lower layer branch in the rotating direction; a blade mounting plate is arranged on the cutting blade; the blade mounting plate is mounted on the front side stepped groove, and the back of the cutting blade is pressed on the front side edge of the lower layer branch in the rotating direction.
Furthermore, a front side limiting strip is arranged on the front side edge of the lower layer branch in the rotating direction; a front side limiting groove matched with the front side limiting strip is arranged on the cutting blade; a lower side limiting strip is arranged on the long side of the blade mounting plate; and a lower side limiting groove matched with the lower side limiting strip is arranged on the vertical groove wall of the front side step groove.
Furthermore, a rear side step groove is formed in the lower side surface of the lower layer branch, and extends to the rear side edge of the lower layer branch in the rotating direction; a strip-shaped mounting seat is arranged on the step groove at the rear side; a guide plate is arranged on the strip-shaped mounting seat.
Furthermore, a reinforcing convex ring is arranged on the square tube between the lower layer cutter bar and the two upper layer cutter bars; the four vertical side surfaces of the reinforcing convex ring are respectively provided with a bolt hole; and positioning bolts are screwed on the bolt holes in a threaded manner, and the end parts of the positioning bolts are used for extending into annular grooves on a rotary main shaft of the mower.
Furthermore, the end part of the positioning bolt is provided with a conical positioning head; friction convex edges are arranged on the conical surface of the conical positioning head at intervals.
Compared with the prior art, the utility model, its beneficial effect is: the square tube is used for driving the lower layer cutter bar and the upper layer cutter bar to rotate, so that the two cutting blades cut weeds in the rotation, and each pair of inclined blades crush the cut weeds and discharge the crushed weeds out of the cutting machine; utilize lower floor's cutter arbor and upper cutter arbor to form double-deck cutting and smash, have better cutting crushing effect.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example 1:
as shown in fig. 1-2, the utility model provides a double-deck lawn mower tool bit includes: the cutting device comprises a square tube 1, a lower layer cutter bar 2, an upper layer cutter bar 3, two cutting blades 10 and a plurality of pairs of inclined blades 9;
the square tube 1 vertically penetrates through and is fixed on the middle part of the upper-layer cutter bar 3, and the upper-layer cutter bar 3 is divided into two upper-layer branches by the square tube 1; the lower end of the square tube 1 is fixed in the middle of the upper side surface of the lower cutter bar 2, and the lower cutter bar 2 is divided into two lower branches by the square tube 1; the lower layer cutter bar 2 and the upper layer cutter bar 3 are crossed in a cross shape in a overlooking state; two cutting blades 10 are respectively arranged on the front side edges of the two lower-layer branches in the rotating direction; each pair of inclined blades 9 is mounted on the upper blade bar 3 for crushing weeds.
The square tube 1 is used for driving the lower layer cutter bar 2 and the upper layer cutter bar 3 to rotate, so that the two cutting blades 10 cut weeds in rotation, and each pair of inclined blades 9 crush the cut weeds and discharge the crushed weeds out of the cutting machine; utilize lower floor cutter arbor 2 and upper cutter arbor 3 to form double-deck cutting and smash, have better cutting and smash the effect.
Furthermore, a plurality of blade mounting grooves 20 are arranged on the upper side surface and the lower side surface of the upper layer branch at intervals; a crushing blade seat 8 is mounted on each blade mounting groove 20 through a crushing blade mounting bolt 23; each pair of inclined blades 9 is respectively arranged on each crushing blade seat 8, and the two inclined blades 9 on the same crushing blade seat 8 are distributed in a V shape; the cutting edge of each inclined blade 9 faces in the direction of rotation.
The crushing blade seat 8 is mounted on the blade mounting groove 20 by using the crushing blade mounting bolt 23, which is convenient for mounting, dismounting or replacing the inclined blade 9; the two inclined blades 9 are distributed in a V shape, so that each pair of inclined blades 9 can have a better crushing effect.
Further, a crushing blade 7 is provided on the front side edge in the upper layer branch rotation direction. The crushing effect of the upper layer cutter arbor 3 is further enhanced by the crushing cutter edge 7.
Further, a front side step groove 12 is arranged on the lower side surface of the lower layer branch, and the front side step groove 12 extends to the front side edge of the lower layer branch in the rotating direction; a blade mounting plate 11 is provided on the cutting blade 10; the blade mounting plate 11 is mounted on the front side step groove 12 by a cutting blade mounting bolt 24, and the back of the cutting blade 10 is pressed against the front side edge in the lower layer branch rotational direction.
The blade mounting plate 11 is mounted on the front side stepped groove 12 by the cutting blade mounting bolt 24, facilitating the mounting and dismounting of each cutting blade 10 and the replacement of the damaged cutting blade 10.
Further, a front side limit strip 14 is arranged on the front side edge of the lower layer branch in the rotating direction; a front side limiting groove 13 matched with the front side limiting strip 14 is arranged on the cutting blade 10; the long edge of the blade mounting plate 11 is provided with a lower limit strip 15; a lower limiting groove 16 matched with the lower limiting strip 15 is arranged on the vertical groove wall of the front step groove 12.
By utilizing the matching between the front side limit strip 14 and the front side limit groove 13 and the matching between the lower side limit strip 15 and the lower side limit groove 16, the attachment between the blade mounting plate 11 and the front side step groove 12 is more stable, and the stable installation of the cutting blade 10 on the lower layer branch is ensured.
Further, a rear side step groove 17 is formed in the lower side surface of the lower branch, and the rear side step groove 17 extends to the rear side edge of the lower branch in the rotating direction; a strip-shaped mounting seat 18 is mounted on the rear side step groove 17 through a guide plate mounting bolt 25; a flow guide plate 19 is arranged on the strip-shaped mounting seat 18. The strip-shaped mounting seat 18 is mounted on the rear-side step groove 17 by using the guide plate mounting bolt 25, so that each guide plate 19 is convenient to assemble, disassemble or replace; two guide plates 19 are utilized to rotate along with the lower cutter bar 2, upward air flow is generated in the rotation process, crushed weeds are discharged out of the cutting machine, and the bottom of the cutting machine is prevented from being blocked.
Further, a reinforcing convex ring 6 is arranged on the square tube 1 between the lower layer cutter arbor 2 and the two upper layer cutter arbor 3; four vertical side surfaces of the reinforcing convex ring 6 are respectively provided with a bolt hole 4; and a positioning bolt 5 is screwed on each bolt hole 4, and the end part of the positioning bolt 5 is used for extending into a ring groove on a rotary main shaft of the mower. The structural strength of the square pipe 1 at the position provided with the bolt hole 4 is enhanced by the reinforcing convex ring 6; the end of each positioning bolt 5 extends into the ring groove of the rotary main shaft of the mower, so that the installation and the positioning are carried out.
Further, the end of the positioning bolt 5 is provided with a conical positioning head 22; the conical surface of the conical positioning head 22 is provided with friction ribs 21 at intervals. The conical positioning head 22 is used for facilitating the positioning bolt 5 to accurately extend into the annular groove of the rotary main shaft of the mower; the friction rib 21 increases the friction force to prevent the positioning bolt 5 from being loosened during high-speed rotation.
When the double-layer mower tool bit provided by the utility model is installed and used, the rotary main shaft of the mower is inserted into the square pipe 11, and the positioning bolt 5 is inserted into the ring groove on the rotary main shaft of the mower to complete the installation; when the square tube type weed cutting machine is used, a rotating main shaft of the weed cutting machine drives the square tube 1 to rotate, the two cutting blades 10 on the lower layer of cutter bar 2 cut weeds in the rotating process, the inclined blades 9 on the upper layer of cutter bar 3 crush the cut weeds, the guide plates 19 generate upward air flow in the rotating process, the crushed weeds are blown out of the weed cutting machine, and the cut weeds are prevented from causing congestion on the lower side of the weed cutting machine; after long-term use, the cutter head can be removed by loosening each positioning bolt 5, and at the same time, the cutting blade 10 can be removed and replaced by loosening the cutting blade mounting bolt 24, the inclined blade 9 can be removed and replaced by loosening the crushing blade mounting bolt 23, and the guide plate 19 can be removed and replaced by loosening the guide plate mounting bolt 25.
As noted above, while the invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited to the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A double-deck lawn mower tool bit which characterized in that: comprises a square tube (1), a lower layer cutter bar (2), an upper layer cutter bar (3), two cutting blades (10) and a plurality of pairs of inclined blades (9);
the square tube (1) vertically penetrates through and is fixed on the middle part of the upper-layer cutter bar (3), and the upper-layer cutter bar (3) is divided into two upper-layer branches by the square tube (1); the lower end of the square tube (1) is fixed in the middle of the upper side surface of the lower cutter bar (2), and the lower cutter bar (2) is divided into two lower branches by the square tube (1); the lower layer cutter bar (2) and the upper layer cutter bar (3) are crossed in a top view state; two cutting blades (10) are respectively arranged on the front side edges of the two lower branches in the rotating direction and are used for cutting weeds; each pair of inclined blades (9) is arranged on the upper layer cutter bar (3) and is used for crushing weeds.
2. The double-deck mower blade according to claim 1, wherein: a plurality of blade mounting grooves (20) are arranged on the upper side surface and the lower side surface of the upper layer branch at intervals; each blade mounting groove (20) is provided with a crushing blade seat (8); each pair of inclined blades (9) is respectively arranged on each crushing blade seat (8), and the two inclined blades (9) on the same crushing blade seat (8) are distributed in a V shape; the cutting edge of each inclined blade (9) faces the rotating direction.
3. The double-deck mower blade according to claim 2, wherein: a crushing blade (7) is arranged on the front side edge of the upper layer branch in the rotating direction.
4. The double-deck mower blade according to claim 1, wherein: a front side step groove (12) is arranged on the lower side surface of the lower branch, and the front side step groove (12) extends to the front side edge of the lower branch in the rotating direction; a blade mounting plate (11) is arranged on the cutting blade (10); the blade mounting plate (11) is mounted on the front side stepped groove (12), and the back of the cutting blade (10) is pressed on the front side edge of the lower layer branch in the rotating direction.
5. The double-deck mower blade according to claim 4, wherein: a front side limiting strip (14) is arranged on the front side edge of the lower layer branch in the rotating direction; a front side limiting groove (13) matched with the front side limiting strip (14) is arranged on the cutting blade (10); a lower side limiting strip (15) is arranged on the long side of the blade mounting plate (11); a lower side limit groove (16) matched with the lower side limit strip (15) is arranged on the vertical groove wall of the front side step groove (12).
6. The double-deck mower blade according to claim 1, wherein: a rear side step groove (17) is arranged on the lower side surface of the lower branch, and the rear side step groove (17) extends to the rear side edge of the lower branch in the rotating direction; a strip-shaped mounting seat (18) is arranged on the rear side step groove (17); a guide plate (19) is arranged on the strip-shaped mounting seat (18).
7. The bi-layer mower blade of claim 1, wherein: a reinforcing convex ring (6) is arranged on the square pipe (1) between the lower layer cutter bar (2) and the two upper layer cutter bars (3); four vertical side surfaces of the reinforcing convex ring (6) are respectively provided with a bolt hole (4); and a positioning bolt (5) is screwed on each bolt hole (4), and the end part of the positioning bolt (5) is used for extending into a ring groove on a rotary main shaft of the mower.
8. The double-deck mower blade according to claim 1, wherein: the end part of the positioning bolt (5) is provided with a conical positioning head (22); friction ribs (21) are arranged on the conical surface of the conical positioning head (22) at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122795865.XU CN217284088U (en) | 2021-11-16 | 2021-11-16 | Double-deck lawn mower tool bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122795865.XU CN217284088U (en) | 2021-11-16 | 2021-11-16 | Double-deck lawn mower tool bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217284088U true CN217284088U (en) | 2022-08-26 |
Family
ID=82913054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122795865.XU Active CN217284088U (en) | 2021-11-16 | 2021-11-16 | Double-deck lawn mower tool bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217284088U (en) |
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2021
- 2021-11-16 CN CN202122795865.XU patent/CN217284088U/en active Active
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