Mower hob blade capable of being repeatedly used

Abstract

The utility model relates to the field of hay mower hob blades, in particular to a reusable hay mower hob blade, which comprises a hob body, a blade edge and a transmission shaft, a shaft hole is arranged at the center of the hob body, a connecting ring is arranged on the inner side of the blade edge, a mounting ring is arranged on the side of the blade edge, and the blade edge is sleeved on the outer side of the connecting ring through the mounting ring. The connecting ring is arranged on the outer side of the cutter body, the mounting ring is arranged on the inner side of the cutting edge, so that the cutting edge can be arranged on the connecting ring in a multi-layer mode, cutting efficiency and durability are improved, the mounting structure of the cutting edge adopts an embodiment I and an embodiment II, and after abrasion occurs, the cutting edge can be arranged on the connecting ring in a multi-layer mode. The cutting edge part can be replaced, the undamaged cutter body is reserved for repeated use, the later maintenance cost of the device is reduced, the cutting edge in the first embodiment is of a sawtooth-shaped structure, the cutting effect is enhanced, and cutting is more thorough.

Description

Technical Field

[0001] The utility model relates to the field of lawn mower rolling blades, in particular to a reusable lawn mower rolling blade. Background Art

[0002] With the development of society and economy, people's environmental awareness is getting stronger and stronger. Lawns and lawns have entered our lives in large numbers, so lawn mower reels have also been widely used. The existing reel devices are all fixed on the reel bracket in a spiral shape in the same direction. The removed grass will fly to one side in the direction of the spiral line of the reel and easily fly out of the grass collection basket. In this way, the lawn that has been mowed needs to be cleaned of waste grass again, and cleaning is difficult. The waste grass on the lawn makes the lawn uneven, and the lawn mower is prone to tearing the grass when rolling the blade, which affects the beauty of the lawn.

[0003] The lawn mower blades will be severely worn during use, resulting in a short service life and need to be replaced. However, when replaced, they are usually replaced as a whole, resulting in a waste of replacing undamaged blades and high maintenance costs. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a reusable lawn mower rolling blade.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reusable lawn mower roller blade of the utility model comprises a blade body, a blade and a transmission shaft, an axial hole is provided at the center of the blade body, a connecting ring is provided on the inner side of the blade, a mounting ring is provided on the side of the blade, the blade is sleeved on the outer side of the connecting ring through the mounting ring, and the blade is a multi-layer arrangement structure on the connecting ring, the blade is a serrated structure, the axial hole is sleeved on the transmission shaft, and the transmission shaft is used to connect the output end of the driving device.

[0008] Preferably, the mounting ring and the plurality of blades are an integral structure, and in this case, the mounting ring is connected to the connecting ring via a threaded structure.

[0009] Further preferably, the connecting ring is provided with a plurality of slots, the mounting ring is provided with a plurality of slots, and one mounting ring is provided with a blade, at which time the inner side of the mounting ring is adapted to the slot through a clamping rod, fixing holes are provided at both ends of the slot, and the clamping rod is adapted to the fixing hole through a fixing bolt.

[0010] Again preferably, a positioning groove is provided on one side of the mounting ring, a positioning rod is provided on the other side of the mounting ring, and the positioning rod between two adjacent mounting rings is matched with the positioning groove.

[0011] Preferably, the blade adopts any one of a rectangular structure and an arc structure.

[0012] Further preferably, convex rings are provided on both sides of the shaft hole, a fixing ring is sleeved on the transmission shaft, and the fixing ring is connected to the convex ring via a threaded structure.

[0013] Preferably again, a protective cover is included, which is sleeved on the connecting ring and the outer side of the blade.

[0014] Preferably, the protective cover is composed of two semicircular structure cover bodies, wherein locking holes are provided at both ends of one cover body, and locking rods are provided at both ends of the other cover body, the locking rods are fitted over the locking holes, and the locking rods pass through limiting bolts, and the limiting bolts are adapted to the locking holes.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a reusable lawn mower blade, which has the following beneficial effects:

[0017] A connecting ring is provided on the outer side of the blade body of the utility model, and a mounting ring is provided on the inner side of the blade, so that the blade can be arranged in multiple layers on the connecting ring, thereby improving cutting efficiency and durability. The mounting structure of the blade adopts the structures of embodiment one and embodiment two. When wear occurs, the blade part can be replaced, leaving the undamaged blade body for reuse, thereby reducing the cost of later maintenance of the device. In embodiment one, the blade is a serrated structure, which enhances the cutting effect and makes the cutting more thorough. In embodiment three, the blade adopts any one of a rectangular structure and an arc structure, which can be selected according to actual needs, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the knife body structure of the second embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the blade structure of the second embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the rectangular blade structure in the third embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the arc blade structure in the third embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the protective cover of the utility model;

[0024] In the figure: 1. knife body; 2. connecting ring; 3. knife blade; 4. mounting ring; 5. shaft hole; 6. convex ring; 7. transmission shaft; 8. fixing ring; 9. slot; 10. fixing hole; 11. clamping rod; 12. positioning slot; 13. positioning rod; 14. protective cover; 15. locking rod; 16. limit bolt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model discloses a reusable lawn mower roller blade, comprising a blade body 1, a blade 3 and a transmission shaft 7. An axial hole 5 is provided at the center of the blade body 1, a connecting ring 2 is provided on the inner side of the blade 3, and a mounting ring 4 is provided on the side of the blade 3. The blade 3 is sleeved on the outer side of the connecting ring 2 through the mounting ring 4, and the blade 3 is a multi-layer arrangement structure on the connecting ring 2. The blade 3 is a serrated structure, and the axial hole 5 is sleeved on the transmission shaft 7. The transmission shaft 7 is used to connect the output end of the driving device.

[0027] In the first embodiment of the present invention, the mounting ring 4 and the plurality of blades 3 are an integral structure, and the mounting ring 4 is connected to the connecting ring 2 via a threaded structure. This design simplifies the manufacturing process and reduces the manufacturing cost.

[0028] In the second embodiment of the utility model, the connecting ring 2 is provided with a plurality of slots 9, the mounting rings 4 are provided with a plurality of slots, and a mounting ring 4 is provided with a blade 3. At this time, the inner side of the mounting ring 4 is adapted to the slot 9 through a clamping rod 11, and fixing holes 10 are provided at both ends of the slot 9. The clamping rod 11 is adapted to the fixing holes 10 through fixing bolts, a positioning groove 12 is provided on one side of the mounting ring 4, and a positioning rod 13 is provided on the other side of the mounting ring 4, and the positioning rod 13 between two adjacent mounting rings 4 is adapted to the positioning groove 12. The stability of the installation of the blade 3 is ensured by the connection between the clamping rod 11 and the slot 9, and the positioning groove 12 and the positioning rod 13 are adapted between two adjacent mounting rings 4 to ensure the correct installation position of the blade 3. At the same time, the blade 3 is set as a separate individual, and can be replaced separately when the blade 3 is worn, thereby reducing the maintenance cost.

[0029] In the third embodiment of the present invention, the blade 3 adopts either a rectangular structure or an arc structure, which can be selected according to actual needs, thereby improving practicality.

[0030] In the preferred embodiment of the above-mentioned reusable lawn mower roller blade, convex rings 6 are provided on both sides of the shaft hole 5, a fixing ring 8 is mounted on the transmission shaft 7, and the fixing ring 8 is connected to the convex ring 6 through a threaded structure. This design allows the blade body 1 to be more firmly installed on the transmission shaft 7.

[0031] The preferred embodiment of the above-mentioned reusable lawn mower roller blade includes a protective cover 14, which is mounted on the connecting ring 2 and the outer side of the blade 3. The protective cover 14 is composed of two semicircular structure cover bodies, one of which is provided with locking holes at both ends, and the other is provided with locking rods 15 at both ends. The locking rod 15 fits above the locking hole, and the locking rod 15 passes through a limiting bolt 16, which is matched with the locking hole. According to the above structure, when the device is not in use, the protective cover 14 is covered on the outer side of the blade 3, which can protect the blade 3 from external damage and extend its service life. At the same time, it can also prevent the blade 3 from scratching people.

[0032] An axial hole 5 is provided at the center of the cutter body 1 in the reusable lawn mower roller blade, so that the blade can be easily connected to the transmission shaft 7, simplifying the installation and disassembly process. Convex rings 6 are provided on both sides of the axial hole 5, which are connected to the fixing ring 8 on the transmission shaft 7 through a threaded structure, thereby increasing the stability between the blade and the transmission shaft 7. The transmission shaft 7 is used to connect the output end of the driving device so that the roller blade can rotate smoothly to cut grass. A connecting ring 2 is provided on the outer side of the cutter body 1, and a mounting ring 4 is provided on the inner side of the blade 3, so that the blade 3 can be arranged in multiple layers on the connecting ring 2, thereby improving the cutting efficiency and durability. At the same time, the blade 3 adopts the above-mentioned mounting structure. When wear occurs, the blade 3 can be replaced, leaving the undamaged cutter body 1 for reuse, thereby reducing the cost of later maintenance of the device. The blade 3 is a serrated structure, which enhances the cutting effect and makes the cutting more thorough.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reusable lawn mower reel blade, characterized in that: The invention comprises a blade body (1), a blade (3) and a transmission shaft (7); an axial hole (5) is provided at the center of the blade body (1); a connecting ring (2) is provided on the inner side of the blade (3); a mounting ring (4) is provided on the side of the blade (3); the blade (3) is sleeved on the outer side of the connecting ring (2) through the mounting ring (4); the blade (3) is a multi-layered structure on the connecting ring (2); the blade (3) is a sawtooth structure; the axial hole (5) is sleeved on the transmission shaft (7); and the transmission shaft (7) is used to connect the output end of a driving device.

2. A reusable lawn mower reel blade according to claim 1, characterized in that: The mounting ring (4) and the plurality of blades (3) are an integral structure, and the mounting ring (4) is connected to the connecting ring (2) via a threaded structure.

3. A reusable lawn mower reel blade according to claim 1, characterized in that: The connecting ring (2) is provided with a plurality of slots (9), the mounting ring (4) is provided with a plurality of slots, and one mounting ring (4) is provided with a blade (3). At this time, the inner side of the mounting ring (4) is adapted to the slot (9) through a clamping rod (11), and fixing holes (10) are provided at both ends of the slot (9), and the clamping rod (11) is adapted to the fixing hole (10) through a fixing bolt.

4. A reusable lawn mower reel blade according to claim 2, characterized in that: A positioning groove (12) is provided on one side of the mounting ring (4), a positioning rod (13) is provided on the other side of the mounting ring (4), and the positioning rod (13) between two adjacent mounting rings (4) is matched with the positioning groove (12).

5. A reusable lawn mower reel blade according to claim 1, characterized in that: The blade (3) adopts any one of a rectangular structure and an arc structure.

6. A reusable lawn mower reel blade according to claim 1, characterized in that: Convex rings (6) are provided on both sides of the shaft hole (5), a fixing ring (8) is sleeved on the transmission shaft (7), and the fixing ring (8) is connected to the convex ring (6) via a threaded structure.

7. A reusable lawn mower reel blade according to claim 1, characterized in that: The utility model comprises a protective cover (14), wherein the protective cover (14) is sleeved on the outer side of the connecting ring (2) and the blade (3).

8. A reusable lawn mower reel blade according to claim 7, characterized in that: The protective cover (14) is composed of two semicircular structure cover bodies, wherein two ends of one cover body are provided with locking holes, and two ends of the other cover body are provided with locking rods (15), wherein the locking rods (15) are fitted above the locking holes, and the locking rods (15) pass through the limiting bolts (16), and the limiting bolts (16) are adapted to the locking holes.

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