Mowing saw blade with high safety

Abstract

The utility model discloses a mowing saw blade with strong safety, which comprises a cutterhead, a shield and a casing, the middle part of the upper surface of the cutterhead is fixedly connected with a connecting shaft, the end part of the connecting shaft penetrates through the shield and extends into the casing, and a motor for driving the connecting shaft to rotate is arranged in the casing. The upper surface of the protective cover is fixedly connected with the bottom of the machine shell through four connecting columns distributed in a rectangular array mode. Under the action of the protective cover, the phenomenon that splashing objects beaten out by the blade rotating rapidly hurt people can be effectively prevented, and the protective effect is very high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of grass cutting saw blade, especially relates to a grass cutting saw blade with high safety. BACKGROUND

[0002] The grass cutting saw blade is generally used for assembling on the grass cutter to cut grass and various trees, shrubs and the like, and is a common tool for gardens and landscaping.

[0003] When the grass cutting saw blade rotates to cut grass, stones and solid metal devices may exist in the lawn, and when the grass cutting saw blade rotates to cut the stones or solid metal devices, some splashes will be generated, which can easily injure people. In addition, since the blade often contacts with external objects, the screws can be loosened to cause the blade to fall off, which is dangerous and can easily damage the blade. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a grass cutting saw blade with high safety to solve the technical problems in the background art.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a grass cutting saw blade with high safety, comprising a cutter head, a shield and a casing, the upper surface of the cutter head is fixedly connected with a connecting shaft at the middle part, the end of the connecting shaft penetrates through the shield and extends into the casing, a motor for driving the connecting shaft to rotate is arranged in the casing, the upper surface of the shield is fixedly connected with the bottom of the casing through four connecting columns arranged in a rectangular array, and a plurality of blades are detachably connected to the cutter head through cross pieces at the edge of the cutter head.

[0006] Preferably, the connecting shaft is rotatably connected with the shield through a bearing.

[0007] Preferably, a notch is arranged on one side of the shield.

[0008] Preferably, a plurality of grooves corresponding to the blades are arranged on the upper and lower sides of the cutter head, the end of the blade is provided with a bayonet, and the bayonet is formed with two clamping plates arranged in an upper and lower manner.

[0009] Preferably, the size of the clamping plate is consistent with the size of the groove.

[0010] Preferably, two first through holes are arranged on the surface of the groove, a third through hole is arranged on each side of the surface of the cutter head, two second through holes corresponding to the first through holes are arranged on the surface of the clamping plate, four threaded studs corresponding to the first through holes and the third through holes are arranged on the bottom of the cross piece, the end of the threaded stud extends below the first through hole and the third through hole and is threadedly connected with a nut.

[0011] The mowing saw blade with high safety has the following advantages.

[0012] 1. Under the action of the shield, the phenomenon that the flying splashes of the rapidly rotating blade injure people can be effectively prevented, and the blade has strong protection.

[0013] 2. The blade can be fastened and connected with the cutter head through the cooperation between the four studs on the cross piece and the first and third through holes. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0015] Figure 1 It is a schematic view of the overall structure of the present application.

[0016] Figure 2 It is Figure 1 It is a schematic view of the structure from another perspective.

[0017] Figure 3 It is Figure 1 It is a right view.

[0018] Figure 4 It is a schematic view of the structure of the cutter head in the present application.

[0019] Figure 5 It is an exploded view of the blade and the cutter head in the present application.

[0020] Marking in the drawing: 1, cutter head; 2, shield; 3, casing; 4, connecting column; 5, blade; 6, connecting shaft; 7, cross piece; 8, groove; 9, bayonet; 10, first through hole; 11, second through hole; 12, stud; 13, clamping plate; 14, third through hole. DETAILED DESCRIPTION

[0021] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different manners without departing from the spirit or scope of the embodiments of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0022] In the description of the embodiments of the present application, it is to be understood that the terms "length", "vertical", "horizontal", "top", "bottom", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0023] In addition, the terms "first", "second", "third", etc. are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0024] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0025] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and settings of a specific example are described in the following. Of course, they are only examples, and the purpose is not to limit the embodiments of the present application. In addition, the embodiments of the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or settings being discussed.

[0026] In order to better understand the purpose, structure and function of the present application, the following will further describe the safety of the present application in detail.

[0027] As Figures 1-5As shown, the utility model discloses a kind of safety's grass cutting saw blade, including cutterhead 1, shroud 2 and shell 3, the upper surface middle part of cutterhead 1 is fixedly connected with connecting shaft 6, the end of connecting shaft 6 is through shroud 2 and extends to the inside of shell 3, connecting shaft 6 is rotatably connected with shroud 2 by bearing, motor for driving connecting shaft 6 rotation is provided in shell 3, the upper surface of shroud 2 is fixedly connected with the bottom of shell 3 by four rectangular array distribution's connecting column 4, the edge of cutterhead 1 is installed with multiple detachable connecting blade 5 by cross piece 7. One side of shroud 2 is provided with notch, so that when cutting grass, blade 5 can be exposed from notch and cut grass, and under the action of shroud 2, the phenomenon that the splashing of rapidly rotating blade 5 can be effectively prevented from hurting, with very strong protection effect. The upper and lower sides of cutterhead 1 are provided with multiple recesses 8 corresponding to blade 5, the end of blade 5 is provided with bayonet 9, bayonet 9 is formed with two upper and lower distribution's clamping plates 13, the size of clamping plate 13 is consistent with the size of recess 8, by the cooperation between recess 8 and bayonet 9, blade 5 can be quickly installed on cutterhead 1, and installation is simple and fast.

[0028] The surface of recess 8 is provided with two first through holes 10, the surface of cutterhead 1 is provided with third through hole 14 on the two sides of recess 8, the surface of clamping plate 13 is provided with two second through holes 11 corresponding to first through hole 10, the bottom of cross piece 7 is provided with four stud bolts 12 corresponding to first through hole 10 and third through hole 14, the end of stud bolt 12 extends to the below of first through hole 10 and third through hole 14 and is threadedly connected with nut, by the cooperation between four stud bolts 12 of cross piece 7 and first through hole 10 and third through hole 14, blade 5 can be fastened to cutterhead 1, and since blade 5 is in contact with external object constantly, nut at first through hole 10 is prone to loosening, at this time, under the action of nut at third through hole 14, the phenomenon that blade 5 is loose can be effectively prevented, with double protection, further improve safety, and the phenomenon that blade 5 is damaged due to falling off can be effectively prevented.

[0029] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A safety grass cutting saw blade, characterized by: The utility model provides a cutting disc, it includes cutter head (1), shroud (2) and casing (3), the upper surface middle part of cutter head (1) is fixedly connected with connecting shaft (6), the end of connecting shaft (6) is through shroud (2) and extends to the inside of casing (3), be provided with motor for driving connecting shaft (6) rotation in casing (3), the upper surface of shroud (2) is fixedly connected with the bottom of casing (3) through four rectangular array distribution's connecting column (4), the edge of cutter head (1) is installed with a plurality of detachable connection's blade (5) through cross piece (7).

2. The safety strong grass cutting saw blade according to claim 1, characterized in that: The connecting shaft (6) is rotatably connected with the shroud (2) through a bearing.

3. The safety strong grass saw blade according to claim 1, characterized in that: The shroud (2) is provided with a notch on one side.

4. The safety strong grass saw blade according to claim 1, characterized in that: The upper and lower sides of the cutter head (1) are provided with a plurality of recesses (8) corresponding to the blades (5), the end of the blade (5) is provided with a bayonet (9), the bayonet (9) is formed with two upper and lower distribution clamping plates (13).

5. The safety strong grass saw blade according to claim 4, characterized in that: The size of the clamping plate (13) is consistent with the size of the recess (8).

6. The safety strong grass saw blade according to claim 4, characterized in that: The surface of the recess (8) is provided with two first through holes (10), the surface of the cutter head (1) is provided with third through holes (14) on both sides of the recess (8), the surface of the clamping plate (13) is provided with two second through holes (11) corresponding to the first through holes (10), the bottom of the cross piece (7) is provided with four stud bolts (12) corresponding to the first through holes (10) and the third through holes (14), the end of the stud bolt (12) extends below the first through hole (10) and the third through hole (14) and is threadedly connected with a nut.

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