Mowing blade with good heat dissipation effect
By setting limit structure and diversion blades in the mowed sheet, cutting and heat dissipation using high-speed rotation and airflow, and changing the connection method between the blade and the cutter plate during collision, the blade head is damaged due to the inability to buffer the impact force. The problem is that the strength and heat dissipation effect of the mowed grass sheet are improved.
Patent Information
- Application Number
- CN202323597435.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2033-12-28
AI Technical Summary
When cutting grass, existing mowed pieces cannot buffer the impact force, resulting in damage to the edge of the blade, especially when encountering stones.
A mowing piece with good heat dissipation effect was designed. By setting a limit structure and a diversion blade between the blade and the cutting plate, cutting and dissipating heat using the centrifugal force and airflow of high-speed rotation, and changing the blade during collision through the fixed structure. Connection with the cutter plate to provide buffering and protection.
It effectively protects the blade, improves the cutting ability of hard plants and rocky grass, and enhances the strength and heat dissipation effect of the mowed grass sheets.
Smart Images
Figure CN222108580U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of saw blades, and in particular relates to a mowing blade with good heat dissipation effect. Background Art
[0002] The mowing blade is a disc-shaped saw blade installed on a lawn mower, with a mounting hole in the center, and it cuts grass and trees by rotating. Chinese Patent Publication No. CN21412604U discloses a mowing blade with good heat dissipation performance, which includes: a substrate, a mounting through hole is provided in the center of the substrate; strip-shaped heat dissipation holes arranged in a divergent manner on the substrate; a serration portion arranged in a circle on the edge of the substrate, the serration portion protruding from the substrate, a blade groove is provided at the end of the serration portion, and a blade head is provided in the blade groove; a reinforcing ridge portion is provided in the inner circle of the serration portion, and a plurality of closely arranged reinforcing cones are provided on the reinforcing ridge portion. The utility model provides a reinforcing ridge portion in the inner circle of the serration portion, and a plurality of closely arranged reinforcing cones are provided on the reinforcing ridge portion. This structure can break relatively hard objects, strengthen the strength of the saw blade, protect the blade head, and prevent the blade head from collapsing. At the same time, multiple groups of divergently arranged strip-shaped heat dissipation holes are provided, which greatly increases the heat dissipation performance of the mowing saw blade.
[0003] However, the device has the following defects when in use: since the blade head of the device is in hard contact with the grass and trees, when the blade head touches a stone while cutting the grass and trees, the blade head cannot buffer the collision force, thus causing damage to the cutting edge of the blade head. For this reason, we propose a mowing blade with good heat dissipation effect. Utility Model Content
[0004] The utility model aims to provide a mowing blade with good heat dissipation effect to solve the technical problems raised in the background technology.
[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a lawn mowing blade with good heat dissipation effect, including a cutter disc and blades, the number of the blades is five, the surface of the cutter disc is provided with a mounting groove, the five blades are rotatably installed on the inner wall of the mounting groove in a circular array, the surface of the cutter disc is provided with a fixing structure for fixing the blade, the fixing structure includes a fixing plate, the lower end of the fixing plate is provided with five limit pins in a circular array, the surfaces of the cutter disc and the blade are respectively provided with a first limit groove, a second limit groove and a third limit groove, the number of the first limit groove, the second limit groove and the third limit groove are all five, the first limit groove, the second limit groove and the third limit groove are all adapted to the limit pin, the five first limit grooves and the second limit grooves are all arranged on the surface of the cutter disc in a circular array, the five third limit grooves are respectively arranged on the surfaces of the five blades, and the third limit groove is coaxial with the first limit groove.
[0006] Preferably, a plurality of guide blades are arranged on the lower surface of the cutter disc in a circular array.
[0007] Preferably, heat dissipation grooves are provided on both the upper surface and the lower surface of the blade.
[0008] Preferably, the surfaces of the cutter disc and the fixing plate are provided with mounting grooves for the external connecting parts to pass through.
[0009] Preferably, there are multiple heat dissipation slots, and the multiple heat dissipation slots are equidistantly arranged on the surface of the blade.
[0010] The utility model has the following advantages:
[0011] 1. A lawn mowing blade with good heat dissipation effect, by setting a blade and a fixed structure, when the limit pin is inserted into the second limit groove, the blade is rotatably connected to the cutter disc, and the centrifugal force generated by the high-speed rotating cutter disc will unfold the blade, so that grass and trees can be cut. At the same time, since the cutter disc is rotatably connected to the blade, when the blade touches a stone, the blade will rotate between the cutter disc, thereby buffering the collision force and effectively protecting the blade. When the limit pin is inserted into the first limit groove and enters the third limit groove, the limit pin can be used to limit the blade, so that the blade cannot rotate, thereby cutting harder grass and trees. Compared with the prior art, the device uses a fixed structure to change the connection mode between the blade and the cutter disc. When the blade is rotatably connected to the cutter disc, the blade can have a buffering function, which is suitable for grass with more rocks. When the blade is fixedly connected to the cutter disc, the blade can have a strong strength and can cut harder grass and trees, thereby improving the practicality of the device.
[0012] 2. A lawn mower with good heat dissipation effect is provided with guide blades. When the cutter disc rotates, the guide blades will rotate accordingly, so that the rotating guide blades can be used to generate airflow to blow on the blades. At the same time, heat dissipation grooves are provided on the surface of the blades to increase the contact area between the blade surface and the air, thereby improving the heat dissipation effect of the blades. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0015] Figure 2 This is a schematic diagram of the cutter disc structure of the utility model when viewed from above;
[0016] Figure 3 This is a schematic diagram of the top-sectional structure of the cutter head of the utility model;
[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing plate of the utility model;
[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the blade of the utility model.
[0019] Markings in the figure: 1 cutter disc, 2 blade, 3 guide vane, 4 heat dissipation slot, 5 fixing plate, 6 first limiting slot, 7 second limiting slot, 8 third limiting slot, 9 limiting pin. Implementation
[0020] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.
[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0023] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0024] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0025] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a lawn mowing blade with good heat dissipation effect of the utility model in conjunction with the accompanying drawings.
[0026] like Figure 1-5 As shown, the utility model is a lawn mower with good heat dissipation effect, comprising a cutter disc 1 and blades 2, the number of blades 2 is five, a mounting groove is provided on the surface of the cutter disc 1, and the five blades 2 are rotatably mounted on the inner wall of the mounting groove in a circular array. When the cutter disc 1 rotates, the centrifugal force generated by the cutter disc 1 will unfold the blades 2, so that the blades 2 can be used to cut grass and trees. At the same time, since the cutter disc 1 is rotatably connected to the blades 2, when the blades 2 touch a stone, the blades 2 will rotate with the cutter disc 1, thereby buffering the collision force and effectively protecting the blades 2.
[0027] The surface of the cutter disc 1 is provided with a fixing structure for fixing the blade 2, and the fixing structure includes a fixing plate 5. The surfaces of the cutter disc 1 and the fixing plate 5 are provided with installation grooves for passing the external connecting parts. The external connecting parts are passed through the installation grooves on the surfaces of the cutter disc 1 and the fixing plate 5, so that the cutter disc 1 and the fixing plate 5 can be fixed by using the external connecting parts. The lower end of the fixing plate 5 is provided with five limit pins 9 in a circular array. The surfaces of the cutter disc 1 and the blade 2 are respectively provided with a first limit groove 6, a second limit groove 7 and a third limit groove 8. The number of the first limit groove 6, the second limit groove 7 and the third limit groove 8 are all five, and the first limit groove 6, the second limit groove 7 and the third limit groove 8 are all adapted to the limit pin 9. The five first limit grooves 6 and the second limit grooves 7 are all arranged in a circular array on the surface of the cutter disc 1, and the five third limit grooves 8 are respectively arranged on the surfaces of the five blades 2, and the third limit groove 8 is coaxial with the first limit groove 6.
[0028] When the limit pin 9 is inserted into the second limit groove 7, the cooperation between the limit pin 9 and the second limit groove 7 can prevent the fixed plate 5 from rotating on the surface of the cutter disc 1. At this time, the blade 2 and the cutter disc 1 are in a rotational connection. When the limit pin 9 is inserted into the first limit groove 6 and enters the third limit groove 8, the limit pin 9 can be used to limit the blade 2, so that the blade 2 cannot rotate, thereby cutting harder grass and wood.
[0029] Compared with the prior art, the device utilizes a fixed structure to change the connection mode between the blade 2 and the cutter disc 1. When the blade 2 is rotationally connected to the cutter disc 1, the blade 2 can have a buffering function, which is suitable for grass with many rocks. When the blade 2 is fixedly connected to the cutter disc 1, the blade 2 can have a stronger strength and can cut harder grass and wood, thereby improving the practicability of the device.
[0030] The lower surface of the blade disc 1 is provided with a plurality of guide blades 3 in a circular array. When the blade disc 1 rotates, the guide blades 3 will rotate accordingly, so that the rotating guide blades 3 can generate airflow to blow on the blade 2, thereby cooling the blade 2. Heat dissipation grooves 4 are provided on the upper and lower surfaces of the blade 2. There are multiple heat dissipation grooves 4, and the multiple heat dissipation grooves 4 are equidistantly arranged on the surface of the blade 2. Providing heat dissipation grooves 4 on the surface of the blade 2 can increase the contact area between the surface of the blade 2 and the air, thereby improving the heat dissipation effect of the blade 2.
[0031] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A mowing blade with good heat dissipation effect, comprising a cutter disc (1) and a blade (2), characterized in that: The number of the blades (2) is five, a mounting groove is provided on the surface of the cutter disc (1), the five blades (2) are rotatably mounted on the inner wall of the mounting groove in a circular array, a fixing structure for fixing the blades (2) is provided on the surface of the cutter disc (1), the fixing structure comprising a fixing plate (5), five limiting pins (9) are provided on the lower end of the fixing plate (5) in a circular array, and a first limiting groove (6), a second limiting groove (7) and a third limiting groove (8) are respectively provided on the surfaces of the cutter disc (1) and the blades (2). The number of the first limiting groove (8), the second limiting groove (7) and the third limiting groove (8) are all five, the first limiting groove (6), the second limiting groove (7) and the third limiting groove (8) are all matched with the limiting pin (9), the five first limiting grooves (6) and the second limiting grooves (7) are all arranged in a circular array on the surface of the cutter disc (1), the five third limiting grooves (8) are respectively arranged on the surfaces of the five blades (2), and the third limiting grooves (8) are coaxial with the first limiting grooves (6).
2. A lawn mowing blade with good heat dissipation effect according to claim 1, characterized in that: The lower surface of the cutter disc (1) is provided with a plurality of guide blades (3) in a circumferential array.
3. The lawn mowing blade with good heat dissipation effect according to claim 1, characterized in that: The upper surface and the lower surface of the blade (2) are both provided with heat dissipation grooves (4).
4. The lawn mowing blade with good heat dissipation effect according to claim 1, characterized in that: The surfaces of the cutter disc (1) and the fixing plate (5) are both provided with mounting grooves for the external connecting parts to pass through.
5. The lawn mowing blade with good heat dissipation effect according to claim 3, characterized in that: The number of the heat dissipation grooves (4) is multiple, and the multiple heat dissipation grooves (4) are arranged at equal intervals on the surface of the blade (2).