A cutter assembly for a lawnmower

Abstract

The utility model belongs to the mower technical field especially relates to a cutter combination of mower, its characterized in being including: tool rest, the tool rest includes upper seat and the lower seat of being fixed in upper seat, upper seat is equipped with connecting portion, guide portion and first positioning part, connecting portion protrudes in upper seat and is located between upper seat and lower seat, to form space between upper seat and lower seat and be connected with the drive arrangement of mower, guide portion and first positioning part are located in two opposite sides of upper seat respectively, and the knife rope, the knife rope includes the rope body and the embedding card spare of being fixed to the end of rope body, the thickness of embedding card spare is greater than the rope body, and the rope body part is located in the space, and another part is respectively worn out guide portion, and embedding card spare is connected with first positioning part.

Description

Technical Field

[0001] This utility model belongs to the field of lawnmower technology, and in particular relates to a blade assembly for a lawnmower. Background Technology

[0002] As living standards improve, people are paying more and more attention to environmental maintenance and requirements. Especially in an era where environmental awareness is rising and greening is emphasized, the maintenance of lawns, field management and road cleaning are of great importance. Therefore, lawnmowers have become an important tool to assist in maintenance. Currently, there are many styles of lawnmower blades, among which metal blades and plastic ropes are more widely used.

[0003] As shown in the figure, conventional lawnmower blades are driven by a drive unit that rotates metal blades. While these blades have a wide cutting range and good performance, during the lawnmower operation, in addition to cutting grass leaves or branches, the blades may also hit stones or other hard objects, causing the blades to break. The broken blades will then fly outwards due to high-speed rotation, leading to many accidents. Furthermore, these blades can easily cut the ankles of others or oneself if the user operates them improperly, thus posing a safety hazard.

[0004] To overcome the aforementioned shortcomings, the industry has developed a type of lawnmower blade that uses a soft plastic rope (as shown in the figure). This type of blade is driven by a drive unit to rotate the blade disc, thereby using the rope fixed in the blade disc to cut grass. However, since this type of lawnmower blade has the rope fixed in the blade disc, when encountering different mowing needs, the length of the rope can only be changed by trimming the rope, or when the rope needs to be replaced, the blade disc can only be removed for replacement. This has many shortcomings that need to be improved. Therefore, we have specially designed a lawnmower blade assembly. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a blade assembly for a lawnmower that allows for quick installation and replacement of the rope, and facilitates adjustment of the rope length.

[0006] In view of this, the present invention provides a blade assembly for a lawnmower, characterized in that it includes: The blade holder includes an upper seat and a lower seat fixed to the upper seat. The upper seat is provided with a connecting part, a guiding part and a first clamping part. The connecting part protrudes from the upper seat and is located between the upper seat and the lower seat to form an assembly gap between the upper seat and the lower seat and to connect with the drive unit of the lawnmower. The guiding part and the first clamping part are respectively located on two opposite sides of the upper seat. The rope includes a rope body and a clamp fixed to the end of the rope body. The thickness of the clamp is greater than that of the rope body. The rope body is located within the assembly gap, and the other part extends out of the guide part. The clamp is connected to the first clamping part.

[0007] In the above technical solution, the first clamping part is further composed of multiple stepped structures, and the rope's insert is set on the stepped structure.

[0008] In the above technical solution, the guide part further includes a protrusion and a groove formed on the protrusion, and the rope body of the rope is located in the groove.

[0009] In the above technical solution, the lower seat is further provided with a second clamping part, and the second clamping part on the lower seat is correspondingly arranged with the first clamping part on the upper seat.

[0010] Furthermore, in the above technical solution, the lower seat is provided with symmetrical blade holders.

[0011] In the above technical solution, furthermore, the positions of multiple blade holders on the lower seat are close to the adjacent ropes.

[0012] In the above technical solution, the lower seat is provided with multiple through holes, and the array of multiple through holes is arranged on the lower seat. The upper seat is provided with through holes, which can be selectively located at the corresponding positions of the through holes. Bolts pass through the through holes and the through holes and are connected with nuts to tighten the upper seat and the lower seat.

[0013] The beneficial effects of this utility model are: the cutter head assembly, through the guide part and the first clamping part structure, allows the rope to be installed and positioned quickly, and facilitates the adjustment of the rope length. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a schematic diagram of the upper seat of this utility model; The markings in the diagram are as follows: 1. Tool holder; 11. Upper seat; 111. Connecting part; 112. First clamping part; 113. Guide part; 1131. First locking block; 1132. Second locking block; 11321. Movable groove; 114. First connecting hole; 115. Second connecting hole; 116. Bolt; 12. Lower seat; 121. Second clamping part; 2. Rope; 21. Rope body; 22. Embedding piece; 3. Blade holder body. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0016] Example 1:

[0017] This embodiment provides a blade assembly for a lawnmower, characterized in that it includes: The tool holder 1 includes an upper seat 11 and a lower seat 12. The upper seat 11 is provided with a connecting part 111, a first clamping part 112 and a guiding part 113. The connecting part 111 protrudes from the upper seat 11 and is located between the upper seat 11 and the lower seat 12. An assembly gap is formed between the upper seat 11 and the lower seat 12. The first clamping part 112 is provided on both sides of the upper seat 11 and is located between the upper seat 11 and the lower seat 12. And rope 2, which includes a rope body 21 and a clamping member 22 fixed to the end of the rope body 21. The thickness of the clamping member 22 is greater than that of the rope body 21. One end of the rope body 21 is connected to the clamping member 22 and passes through the assembly gap and the guide part 113 before being connected to the first clamping part 112. The upper seat 11 is provided with a first connecting hole 114, and the lower seat 12 is provided with a second connecting hole 115. The first connecting hole 114 and the second connecting hole 115 are fixed together by bolts 116.

[0018] As can be seen from this embodiment, the tool holder 1 includes an upper seat 11 and a lower seat 12. The upper seat 11 is provided with a connecting part 111, a guiding part, and a first clamping part 112. A first connecting hole 114 is formed on the upper seat 11, and a second connecting hole 115 is formed on the lower seat 12 corresponding to the upper seat 11. The first connecting hole 114 and the second connecting hole 115 are connected by a rear connecting bolt 116, thereby fixing the upper seat 11 and the lower seat 12 together. The connecting part 111 is integrally welded on one side end face of the upper seat 11 and protrudes from both sides of the upper seat 11. When the upper seat 11 is connected to the lower seat 12, the connecting part 111 on the lower end face of the upper seat 11 pushes the lower seat 12 apart. The lower seat 12 forms an assembly gap at the connecting part 111. The connecting part 111 is used to connect with the drive unit of the lawnmower. The first clamping part 112 is formed on both side walls of the upper seat 11, and the guide part 113 is formed at the front end of the first clamping part 112. The rope 2 includes a rope body 21 and a clip 22. The clip 22 is connected to one end of the rope body 21. The other end of the rope body 21 passes through the assembly gap and the guide and extends to the outside of the tool holder 1. The clip 22 is a rectangular block with a through hole. One end of the rope body 21 passes through the through hole and is knotted. After forming a limit with the through hole, the rope body 21 is fixed to the clip 22. The rope 2 and the knife holder 1 are fixed together by the limiting cooperation between the insert 22 and the first clamping part 112. The overall connection method is simple and reliable, and the length of the rope 21 can be controlled by adjusting the position of the insert 22 on the first clamping part 112.

[0019] Example 2:

[0020] This embodiment provides a blade assembly for a lawnmower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0021] The first clamping part 112 is composed of multiple stepped structures, and the locking part 22 of the rope 2 is set on the stepped structure.

[0022] As can be seen from this embodiment, the first clamping part 112 is composed of multiple stepped structures formed on both sides of the upper seat 11. The stepped structure forms a limiting effect with the insert 22 through its own corners, thereby allowing the insert 22 to be fixed during the connection between the upper seat 11 and the lower seat 12. Moreover, the multiple stepped structures mean that the insert 22 can control the length of the rope 21 extending to the outside of the tool holder 1 through the limiting connection with different stepped structures, thus facilitating its use.

[0023] Example 3:

[0024] This embodiment provides a blade assembly for a lawnmower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0025] Guidance unit 113 includes: The protruding blocks are integrally formed at both ends of the upper seat 11 and are disposed on the outside of the stepped structure; The movable block and the protruding block are arranged side by side, and a clamping gap is formed between the movable block and the protruding block.

[0026] As can be seen from this embodiment, the guide part includes a protruding block and a movable block, and a clamping gap is formed between the protruding block and the movable block, with the rope 21 located in the clamping gap; By using the first locking block 1131 and the second locking block 1132 to limit the rope 21, the range of motion of the rope 21 is restricted, thereby improving the cutting effect of the rope 21.

[0027] Example 4:

[0028] This embodiment provides a blade assembly for a lawnmower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0029] The movable groove 11321 is provided on the second locking block 1132. The movable groove 11321 is elongated and cooperates with the bolt 116. The second card block 1132 is independent of the upper seat 11.

[0030] As can be seen from this embodiment, the second locking block 1132 is independent of the upper seat 11, and the second locking block 1132 has a movable groove 11321 formed on it. After the bolt 116 is connected to the movable groove 11321, the second locking block 1132 is fixed between the upper seat 11 and the lower seat 12. In use, the second locking block 1132 can control the clamping gap width by controlling the positional cooperation between the movable groove 11321 and the bolt 116, thereby realizing the control of the tightness change of the rope 21 on the knife holder 1.

[0031] Example 5:

[0032] This embodiment provides a blade assembly for a lawnmower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0033] The second clamping part 121 corresponds to the first clamping part 112, and the second clamping part 121 is structurally the same as the first clamping part 112.

[0034] As can be seen from this embodiment, the lower seat 12 is provided with a second clamping part 121. The second clamping part 121 of the lower seat 12 has the same structure as the first clamping part 112 of the upper seat 11 and the positions are corresponding. By providing a second clamping part 121 on the lower seat 12 corresponding to the first clamping part 112 on the upper seat 11, the contact area between the insert 22 and the tool holder 1 is expanded, thereby enabling the insert 22 to better cooperate with the tool holder 1, which in turn helps to improve the connection strength.

[0035] Example 6:

[0036] This embodiment provides a blade assembly for a lawnmower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0037] The lower seat 12 is equipped with symmetrical blade holders 3.

[0038] As can be seen from this embodiment, as shown in the figure, this is the blade assembly of the lawnmower in the second preferred embodiment of the present invention. The difference between the blade assembly of the lawnmower in the first preferred embodiment and the blade assembly of the lawnmower in the second preferred embodiment is that the lower seat 12 of the blade assembly of the lawnmower in the second preferred embodiment is provided with two symmetrical blade holders 3. By setting the blade holders 3 in conjunction with the rope 2 for cutting, the efficiency of lawn mowing can be effectively improved.

[0039] Furthermore, in different mowing situations, the blade assembly of the lawnmower of the present invention can also be as shown in Figures 1 to 2, allowing users to easily and conveniently achieve this simply by changing the blade holder 3 of different lower seats 12 (such as arc-shaped, trapezoidal, etc.).

[0040] Example 7:

[0041] This embodiment provides a blade assembly for a lawnmower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0042] The positions of multiple blade holders 3 on the lower seat 12 are close to the adjacent rope 2.

[0043] As can be seen from this embodiment, the distance between the blade frame 3 and the adjacent rope 2 is short; By shortening the distance between the rope 2 and the blade holder 3, the fit between the rope 2 and the blade holder 3 becomes tighter, which can significantly reduce the number of times the blade assembly cuts weeds or branches back and forth, thereby further improving the efficiency of mowing operations.

[0044] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A blade assembly for a lawnmower, characterized in that, include: The tool holder (1) includes an upper seat (11) and a lower seat (12). The upper seat (11) is provided with a connecting part (111), a first clamping part (112) and a guiding part (113). The connecting part (111) protrudes from the upper seat (11) and is located between the upper seat (11) and the lower seat (12). An assembly gap is formed between the upper seat (11) and the lower seat (12). The first clamping part (112) is provided on both sides of the upper seat (11) and is located between the upper seat (11) and the lower seat (12). And a rope (2), the rope (2) includes a rope body (21) and a clip (22), the thickness of the clip (22) is greater than that of the rope body (21), one end of the rope body (21) is connected to the clip (22), and passes through the assembly gap and the guide (113) and is connected to the first clamping part (112). The upper seat (11) is provided with a first connecting hole (114), and the lower seat (12) is provided with a second connecting hole (115). The first connecting hole (114) and the second connecting hole (115) are fixed together by bolts (116).

2. The blade assembly of a lawnmower according to claim 1, characterized in that, The first clamping part (112) is composed of multiple stepped structures, and the insert (22) of the rope (2) is disposed on the stepped structure.

3. The blade assembly of a lawnmower according to claim 2, characterized in that, The guide section (113) includes: The first card block (1131) is integrally formed on both ends of the upper seat (11) and is disposed on the outside of the stepped structure; The second locking block (1132) is arranged side by side with the first locking block (1131), and a clamping gap is formed between the second locking block (1132) and the first locking block (1131).

4. The blade assembly of a lawnmower according to claim 3, characterized in that it further includes... include: The movable groove (11321) is provided on the second locking block (1132). The movable groove (11321) is elongated and cooperates with the bolt (116). The second card block (1132) is independent of the upper seat (11).

5. The blade assembly of a lawnmower according to claim 4, characterized in that it further includes... include: The second clamping part (121) corresponds to the first clamping part (112), and the second clamping part (121) is structurally the same as the first clamping part (112).

6. The blade assembly of a lawnmower according to claim 5, characterized in that it further includes... include: Blade holder (3), which is symmetrically arranged on both sides of the lower seat (12).

7. The blade assembly of a lawnmower according to claim 1, characterized in that, The positions of the multiple blade holders (3) on the lower seat (12) are close to the adjacent rope (2).

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