Mowing machine head with cutting line protection function

Abstract

The utility model discloses a mowing machine head with cutting line protection, which relates to the technical field of mowing machine heads, and comprises a machine head main body, the machine head main body consists of a machine head seat, a cutting area and a base, a cutting protection unit is arranged in the cutting area, the cutting area is positioned between the machine head seat and the base, and the cutting protection unit comprises a disc type cutting disc. The disc type cutting disc is close to one side of the base and located on the driving shaft, a sealing protection piece is arranged at the other end of the driving shaft, curved surface cutting line protection plates are symmetrically distributed at the two ends of the sealing protection piece, and welding bases are arranged at the other ends of the curved surface cutting line protection plates. According to the utility model, the disc type cutting disc arranged in the cutting protection unit is used for completing the cutting operation of the mowing machine and is matched with the sealing protection piece to complete the closed state of the cutting line, and the curved surface cutting line protection plate is used for ensuring that the cutting line radially extending out of the main body of the mowing machine head is in a safe state in the working process; therefore, the effect of protecting the cutting line is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mower heads, in particular to a lawn mower head with cutting line protection. Background Art

[0002] A mower head is typically used to cut grass or other vegetation and has a cutting line extending radially from the body of the head which cuts the vegetation due to the centrifugal forces acting thereon and due to the rapid rotation of the mower head about its axis.

[0003] However, when using existing mower heads, the cutting line extending radially from the main body of the mower head often breaks accidentally due to the edge of the largest plant or flower bed, stones, clods of earth or other objects on the ground. When this happens, the breaking phenomenon often occurs at the corresponding outlet hole, that is, the bushing through which the cutting line extends from the main body of the mower head.

[0004] In order to restore the desired length of the cutting line, the mower head must therefore be opened and the reel on which the cutting line is wound extended by hand, otherwise it will be impossible to pull out the free end trapped in the hole or in the body of the mower head after breaking off. Utility Model Content

[0005] The utility model provides a mower head with cutting line protection to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A mower head with cutting line protection comprises a head body, wherein the head body is composed of a head seat, a cutting area and a base, a cutting protection unit is arranged inside the cutting area, and the cutting area is located between the head seat and the base;

[0008] The cutting protection unit includes a disc-type cutting disc, which is close to one side of the base and is located on the driving shaft. A sealing protection member is provided at the other end of the driving shaft, and curved cutting line protection plates are symmetrically distributed at both ends of the sealing protection member, and a welding seat is provided at the other end of the curved cutting line protection plate.

[0009] The utility model completes the cutting operation of the lawn mower by means of a disc-type cutting disc arranged in the cutting protection unit, and at the same time cooperates with the sealing protection part to complete the closed state of the cutting line, and uses a curved cutting line protection plate to ensure that the cutting line radially extending from the main body of the lawn mower head is in a safe state during operation, thereby achieving the effect of cutting line protection.

[0010] A further improvement of the technical solution of the utility model is that the disc cutting disc is drivingly connected to the drive shaft, and the drive shaft is rotatably connected to the sealing protection member, the curved cutting line protection plate includes a protective sealing protection member, and the welding seat is fixedly connected to the curved cutting line protection plate.

[0011] A further improvement of the technical solution of the utility model is that the bottom of the welding seat is connected to a protective ring sleeve, and the protective ring sleeve is cylindrical, a driving component is arranged inside the protective ring sleeve, and the driving component is connected to the driving shaft.

[0012] A further improvement of the technical solution of the utility model is that the welding seat is welded inside the cutting area, and the protective ring sleeve is fixedly connected to the welding seat, the driving component is limitedly installed inside the protective ring sleeve, and the driving component is connected to the driving shaft through a coupling.

[0013] A further improvement of the technical solution of the utility model is that radial protrusions are distributed on the other end of the driving component, and the radial protrusions are all curved profiles, and the curved profiles extend in a spiral shape.

[0014] A further improvement of the technical solution of the utility model is that: a bushing outlet hole is arranged at the bottom of the base, and the bushing outlet holes are arranged in an array on the base.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] The utility model provides a lawn mower head with cutting line protection, which completes the cutting operation of the lawn mower by means of a disc-type cutting disc arranged in a cutting protection unit and cooperates with a sealing protection component to complete the closed state presentation of the cutting line, and utilizes a curved cutting line protection plate to ensure that the cutting line radially extending from the main body of the lawn mower head is in a safe state during operation, thereby achieving the effect of cutting line protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the cutting protection unit of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the cutting protection unit of the utility model.

[0021] In the figure: 1. Machine head body; 101. Machine head seat; 102. Cutting area; 103. Base; 201. Disc cutting disc; 202. Drive shaft; 203. Sealing protection; 204. Curved cutting line protection plate; 205. Welding seat; 206. Protection ring sleeve; 207. Drive assembly; 208. Radial protrusion; 3. Bushing outlet hole. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0024] Embodiment 1: A lawn mower head with cutting line protection, comprising a head body 1, the head body 1 being composed of a head seat 101, a cutting area 102 and a base 103, a cutting protection unit being arranged inside the cutting area 102, and the cutting area 102 being located between the head seat 101 and the base 103;

[0025] The cutting protection unit includes a disc cutting disc 201, which is close to one side of the base 103 and is located on the driving shaft 202. A sealing protection member 203 is provided at the other end of the driving shaft 202, and curved cutting line protection plates 204 are symmetrically distributed at both ends of the sealing protection member 203. A welding seat 205 is provided at the other end of the curved cutting line protection plate 204.

[0026] The utility model uses the disc cutting disc 201 provided in the cutting protection unit to complete the cutting operation of the lawn mower, and cooperates with the sealing protection member 203 to complete the closed state of the cutting line, and uses the curved cutting line protection plate 204 to ensure that the cutting line radially extending from the main body of the lawn mower head is in a safe state during operation, thereby achieving the effect of cutting line protection.

[0027] The disc cutting disc 201 is drivingly connected to the driving shaft 202 , and the driving shaft 202 is rotatably connected to the sealing protection member 203 . The curved cutting line protection plate 204 includes the sealing protection member 203 , and the welding seat 205 is fixedly connected to the curved cutting line protection plate 204 .

[0028] Embodiment 2: Based on embodiment 1: the bottom of the welding seat 205 is connected to a protective ring sleeve 206 , and the protective ring sleeve 206 is cylindrical. A driving assembly 207 is arranged inside the protective ring sleeve 206 , and the driving assembly 207 is connected to the driving shaft 202 .

[0029] The welding seat 205 is welded inside the cutting area 102, and the protective ring sleeve 206 is fixedly connected to the welding seat 205. The driving component 207 is limitedly installed inside the protective ring sleeve 206, and the driving component 207 is connected to the driving shaft 202 through a coupling.

[0030] Embodiment 3: Based on Embodiment 1 and Embodiment 2: A radial protrusion 208 is distributed at the other end of the driving component 207, and the radial protrusion 208 has a curved profile, and the curved profile extends in a spiral shape.

[0031] The bottom of the base 103 is provided with bushing outlet holes 3 , and the bushing outlet holes 3 are arranged in an array on the base 103 .

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A lawn mower head with cutting line protection, comprising a head body (1), characterized in that: The machine head body (1) is composed of a machine head seat (101), a cutting area (102) and a base (103); a cutting protection unit is provided inside the cutting area (102); and the cutting area (102) is located between the machine head seat (101) and the base (103); The cutting protection unit comprises a disc-type cutting disc (201), the disc-type cutting disc (201) being close to one side of the base (103) and the disc-type cutting disc (201) being located on a driving shaft (202), a sealing protection member (203) being provided at the other end of the driving shaft (202), and curved surface cutting line protection plates (204) being symmetrically distributed at both ends of the sealing protection member (203), and a welding seat (205) being provided at the other end of the curved surface cutting line protection plate (204).

2. A lawn mower head with cutting line protection according to claim 1, characterized in that: The disc-type cutting disc (201) is drivingly connected to the driving shaft (202), and the driving shaft (202) is rotationally connected to the sealing protection member (203), the curved surface cutting line protection plate (204) includes the protective sealing protection member (203), and the welding seat (205) is fixedly connected to the curved surface cutting line protection plate (204).

3. A lawn mower head with cutting line protection according to claim 1, characterized in that: The bottom of the welding seat (205) is connected to a protective ring sleeve (206), and the protective ring sleeve (206) is cylindrical. A driving component (207) is arranged inside the protective ring sleeve (206), and the driving component (207) is connected to the driving shaft (202).

4. A lawn mower head with cutting line protection according to claim 3, characterized in that: The welding seat (205) is welded inside the cutting area (102), and the protective ring sleeve (206) is fixedly connected to the welding seat (205). The driving assembly (207) is limitedly installed inside the protective ring sleeve (206), and the driving assembly (207) is connected to the driving shaft (202) via a coupling.

5. A lawn mower head with cutting line protection according to claim 4, characterized in that: The other end of the driving component (207) is provided with radial protrusions (208), and the radial protrusions (208) all have a curved profile, and the curved profile extends in a spiral shape.

6. The lawn mower head with cutting line protection according to claim 1, characterized in that: The bottom of the base (103) is provided with bushing outlet holes (3), and the bushing outlet holes (3) are arranged in an array on the base (103).

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