Garden mower cutter head

Abstract

The utility model relates to the technical field of garden maintenance, and discloses a garden mowing machine cutterhead which comprises a cutterhead body and a protective shell, a containing groove is formed in the protective shell, the cutterhead body is arranged in the containing groove, a rotary sleeve used for external connection is inserted into the protective shell, the rotary sleeve is communicated with the containing groove, and the rotary sleeve is connected with the protective shell. Through reasonable arrangement of the control assembly, the movable groove, the guide groove, the reset spring and other structures, automatic control and retraction of the blade are achieved, when the blade is released, the space in the protection shell is enlarged, weeds remaining in the protection shell fall out, and therefore the mowing efficiency is improved, and residues on the surface are reduced. In the working process, an operator can easily control releasing and retracting of the blade through operation of the control rod, and therefore more efficient and accurate operation is achieved when a lawn is trimmed. Meanwhile, by arranging a restoring spring and a limiting rod, it is ensured that the blade can be safely retracted into the cavity when not used, and the risk of accidental injuries is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of garden maintenance, in particular to a garden lawn mower cutter. Background Art

[0002] The garden mower blade (also called a mower blade or mowing blade) is a key component on a lawn mower that is used to cut the grass on the lawn. These blades are usually made of high-strength alloy steel to ensure durability and cutting efficiency. The shape and design of the blade can vary, but they usually have a raised edge to effectively cut the grass blades as they rotate.

[0003] When using existing lawn mowers, a protective cover is generally provided outside the cutter disc for safety reasons. However, when the blades cut the grass, some grass will remain in the protective cover, causing the rotation speed of the cutter disc to decrease. Therefore, the existing needs are not met. In this regard, we propose a garden lawn mower cutter disc. Utility Model Content

[0004] The utility model provides a garden lawn mower blade, which has the beneficial effect of allowing weeds remaining in a protective shell to fall out, thereby improving mowing efficiency and reducing surface residues, and solves the problem mentioned in the above background technology that part of the grass will remain in the protective shell when the blade cuts the grass, resulting in a reduction in the rotation speed of the blade.

[0005] The utility model provides the following technical solution: a garden mower blade, comprising a blade body and a protective shell, wherein a placement slot is provided in the protective shell, the blade body is arranged in the placement slot, a rotating sleeve for external connection is inserted in the protective shell, and the rotating sleeve is communicated with the placement slot;

[0006] The blade disc body comprises a shell and a blade. A movable slot is provided in the shell, and the blade is movably inserted in the movable slot. A cavity is provided in the shell, and a control component for controlling the blade is arranged in the cavity.

[0007] As an optional scheme for a garden mower blade disc described in the utility model, wherein: the control component includes a control rod inserted in the cavity, the control rod is configured as an electric telescopic rod, the top of the control rod is located in the rotating sleeve, a push rod is fixedly installed on the side of the blade, the push rod is located in the cavity, the control rod is inserted between the push rods, and the push rod is provided with an inclined surface on the side close to the control rod.

[0008] As an optional scheme for a garden mower blade disc described in the utility model, a fixed block is installed in the cavity, the fixed block is located on the upper side of the blade, a guide groove is opened in the fixed block, the guide groove is connected to the cavity, a guide block is installed on the blade, and the guide block is slidably arranged in the guide groove.

[0009] As an optional scheme for a garden mower blade described in the utility model, a limit rod is arranged in the guide groove, a restoring spring is arranged on the outer sleeve of the limit rod, one end of the restoring spring is connected to the inside of the guide groove, and the other end of the restoring spring is connected to the side of the guide block.

[0010] As an optional scheme for a garden mower blade disc described in the utility model, a mounting block is installed at the bottom of the rotating sleeve, a mounting groove corresponding to the mounting block is opened in the shell, the mounting block is plugged into the mounting groove, and the rotating sleeve cooperates with the mounting groove through the mounting block, thereby driving the blade disc body to rotate coaxially.

[0011] As an optional scheme for a garden mower blade according to the utility model, a scraper for scraping off grass remaining on the blade is installed outside the movable groove, and the scraper is set as a stainless steel inclined plate, and the scraper is fixedly installed on the shell.

[0012] As an optional scheme for a garden mower blade described in the utility model, a driving rod is fixedly installed outside the rotating sleeve, a cleaning rod for cleaning the inner wall of the protective shell is fixedly installed at the end of the driving rod, and the outer wall of the cleaning rod is in contact with the inner wall of the placement groove.

[0013] As an optional solution for a garden mower blade according to the utility model, the inner wall of the placement groove is provided with a wear-resistant layer, and the wear-resistant layer is provided as a polyurethane coating.

[0014] The utility model has the following beneficial effects:

[0015] 1. The garden mower blade realizes automatic control and retraction of the blade through the reasonable setting of control components, movable grooves, guide grooves, recovery springs and other structures. When the blade is released, the space inside the protective shell becomes larger, so that the weeds remaining in the protective shell fall out, thereby improving the mowing efficiency and reducing the residue on the surface. During the working process, the operator can easily control the release and retraction of the blade through the operation of the control lever, so as to achieve more efficient and precise operation when mowing the lawn. At the same time, by setting the recovery spring and limit rod, it is ensured that the blade can be safely retracted into the cavity when not in use, reducing the risk of accidental injury.

[0016] 2. The blade disc of the garden mower is fixed on the driving rod through a cleaning rod, and ensures that it is in contact with the inner wall of the placement groove, which can help clean the inner wall of the protective shell and prevent residual lawn debris from adhering to the shell and affecting the normal operation of the mower, thereby helping to keep the inside of the protective shell clean and improving the working efficiency and stability of the blade disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional cutaway structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the planar cutaway structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0020] Figure 4 It is a schematic diagram of the enlarged structure of point B of the utility model.

[0021] In the figure: 100, cutter body; 110, shell; 111, movable groove; 112, mounting groove; 113, scraper; 120, blade; 130, cavity; 200, protective shell; 210, placement groove; 211, wear-resistant layer; 220, rotating sleeve; 221, mounting block; 222, driving rod; 223, cleaning rod; 300, control assembly; 310, control rod; 320, push rod; 321, inclined plane; 330, fixed block; 340, guide groove; 341, limit rod; 342, return spring; 350, guide block. 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] Embodiment 1: This embodiment is intended to solve the problem that when the blade 120 cuts the grass, some grass will remain in the protective shell 200, causing the rotation speed of the blade to decrease. Figure 1-Figure 4 A garden mower blade includes a blade body 100 and a protective shell 200. The protective shell 200 has a placement groove 210, the blade body 100 is arranged in the placement groove 210, and a rotating sleeve 220 for external connection is inserted in the protective shell 200, and the rotating sleeve 220 is connected to the placement groove 210.

[0024] The blade disc body 100 includes a shell 110 and a blade 120 . A movable slot 111 is defined in the shell 110 . The blade 120 is movably inserted in the movable slot 111 . A cavity 130 is defined in the shell 110 . A control component 300 for controlling the blade 120 is disposed in the cavity 130 .

[0025] The control assembly 300 includes a control rod 310 inserted into the cavity 130. The control rod 310 is set as an electric telescopic rod. The top of the control rod 310 is located in the rotating sleeve 220. A push rod 320 is fixedly installed on the side of the blade 120. The push rod 320 is located in the cavity 130. The control rod 310 is inserted between the push rods 320 and the push rod 320. The push rod 320 is provided with an inclined surface 321 on the side close to the control rod 310. A fixed block 330 is installed in the cavity 130. The fixed block 330 is located on the upper side of the blade 120. A guide groove 340 is opened in the fixed block 330. The guide groove 340 is connected with the cavity 130. A guide block 350 is installed on the blade 120. The guide block 350 is slidably set in the guide groove 340.

[0026] A limit rod 341 is provided in the guide groove 340, and a restoring spring 342 is provided on the outer sleeve of the limit rod 341. One end of the restoring spring 342 is connected to the inside of the guide groove 340, and the other end of the restoring spring 342 is connected to the side of the guide block 350. A mounting block 221 is installed at the bottom of the rotating sleeve 220, and a mounting groove 112 corresponding to the mounting block 221 is opened in the housing 110. The mounting block 221 is plugged into the mounting groove 112, and the rotating sleeve 220 cooperates with the mounting groove 112 through the mounting block 221, thereby driving the cutter head body 100 to rotate coaxially.

[0027] During installation, the protective shell 200 is fixedly installed at the bottom of the weeder, and then the blade disc body 100 is installed in the placement slot 210 in the protective shell 200 through the rotating sleeve 220. When working, the control rod 310 is manually controlled to move downward, and the control rod 310 will control the push rod 320 to push to both sides when it moves downward. With the push of the push rod 320, the blade 120 will be released from the movable slot 111 synchronously. At the same time, due to the push of the control rod 310, the blade disc body 100 will be synchronously controlled to be released from the protective shell 200 as a whole. At this time, the weeder is manually started to control the rotating sleeve 220 to rotate. Due to the plugging of the mounting block 221 and the mounting slot 112, the rotating sleeve 220 will drive the blade disc body 100 to rotate coaxially, thereby trimming the weeds.

[0028] When trimming is completed, the control rod 310 is manually controlled again to move the control rod 310 upward. At this time, the push rod 320 loses control. At the same time, due to the setting of the guide block 350, when the control rod 310 moves upward, the restoring spring 342 and the limit rod 341 will drive the guide block 350 and the blade 120 to retract into the cavity 130.

[0029] In this embodiment: by rationally setting the control assembly 300, the movable slot 111, the guide slot 340, the restoring spring 342 and other structures, the automatic control and retraction of the blade 120 is realized. When the blade 120 is released, the space in the protective shell 200 becomes larger, so that the weeds remaining in the protective shell 200 fall out, thereby improving the mowing efficiency and reducing the residue on the surface. During the working process, the operator can easily control the release and retraction of the blade 120 by operating the control rod 310, so as to achieve more efficient and precise operation when mowing the lawn. At the same time, by setting the restoring spring 342 and the limit rod 341, it is ensured that the blade 120 can be safely retracted into the cavity 130 when not in use, reducing the risk of accidental injury.

[0030] Embodiment 2: This embodiment is intended to further solve the problem that some grass will remain in the protective shell 200, resulting in a reduction in the rotation speed of the blade disc. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-Figure 4 .

[0031] A scraper 113 for scraping grass left on the blade 120 is installed outside the movable groove 111. The scraper 113 is set as a stainless steel inclined plate and is fixedly installed on the housing 110. A driving rod 222 is fixedly installed outside the rotating sleeve 220. A cleaning rod 223 for cleaning the inner wall of the protective shell 200 is fixedly installed at the end of the driving rod 222. The outer wall of the cleaning rod 223 contacts the inner wall of the placement groove 210. The inner wall of the placement groove 210 is provided with a wear-resistant layer 211, and the wear-resistant layer 211 is set as a polyurethane coating.

[0032] By installing a stainless steel inclined scraper 113 outside the movable groove 111, the lawn debris remaining on the blade 120 can be better scraped off to prevent the accumulation of these debris and affect the normal operation of the cutter disc. This design can effectively improve the cleanliness of the blade 120, reduce the accumulation of residues, and further reduce the possibility of the cutter disc rotating speed being reduced.

[0033] Finally, the use of polyurethane coating as the wear-resistant layer 211 of the inner wall of the placement groove 210 can increase its wear resistance and smoothness, reduce the adhesion of residues, and facilitate cleaning. The design of this wear-resistant layer 211 not only improves the durability of the lawn mower components, but also helps to reduce the frequency of maintenance and cleaning, and improve overall work efficiency.

[0034] In this embodiment: by fixing the cleaning rod 223 on the driving rod 222 and ensuring that it is in contact with the inner wall of the placement groove 210, it can help clean the inner wall of the protective shell 200 and prevent residual lawn debris from adhering to the shell 110 and affecting the normal operation of the lawn mower, thereby helping to keep the inside of the protective shell 200 clean and improving the working efficiency and stability of the blade disc.

[0035] 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.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A garden mower blade, comprising a blade body (100) and a protective shell (200), characterized in that: A placement groove (210) is provided in the protective shell (200), the cutter head body (100) is arranged in the placement groove (210), a rotating sleeve (220) for external connection is inserted in the protective shell (200), and the rotating sleeve (220) is in communication with the placement groove (210); The blade disc body (100) comprises a shell (110) and a blade (120); a movable slot (111) is provided in the shell (110); the blade (120) is movably inserted in the movable slot (111); a cavity (130) is provided in the shell (110); a control component (300) for controlling the blade (120) is arranged in the cavity (130).

2. A garden mower blade according to claim 1, characterized in that: The control assembly (300) comprises a control rod (310) inserted into the cavity (130), the control rod (310) being configured as an electric telescopic rod, the top end of the control rod (310) being located in the rotating sleeve (220), a push rod (320) being fixedly mounted on the side of the blade (120), the push rod (320) being located in the cavity (130), the control rod (310) being inserted between the push rods (320) and the push rod (320), and a slope (321) being provided on a side of the push rod (320) close to the control rod (310).

3. A garden mower blade according to claim 2, characterized in that: A fixing block (330) is installed in the cavity (130), the fixing block (330) is located on the upper side of the blade (120), a guide groove (340) is provided in the fixing block (330), the guide groove (340) is communicated with the cavity (130), and a guide block (350) is installed on the blade (120), the guide block (350) is slidably arranged in the guide groove (340).

4. A garden mower blade according to claim 3, characterized in that: A limit rod (341) is disposed in the guide groove (340), and a return spring (342) is disposed on the outer sleeve of the limit rod (341); one end of the return spring (342) is connected to the inside of the guide groove (340), and the other end of the return spring (342) is connected to the side of the guide block (350).

5. The garden mower blade according to claim 1, characterized in that: A mounting block (221) is installed at the bottom of the rotating sleeve (220); a mounting groove (112) corresponding to the mounting block (221) is provided in the housing (110); the mounting block (221) is plugged into the mounting groove (112); the rotating sleeve (220) cooperates with the mounting groove (112) via the mounting block (221), thereby driving the cutter head body (100) to rotate coaxially.

6. The garden mower blade according to claim 1, characterized in that: A scraper (113) for scraping grass left on the blade (120) is installed outside the movable groove (111); the scraper (113) is configured as a stainless steel inclined plate; and the scraper (113) is fixedly mounted on the housing (110).

7. The garden mower blade according to claim 1, characterized in that: A driving rod (222) is fixedly mounted outside the rotating sleeve (220), and a cleaning rod (223) for cleaning the inner wall of the protective shell (200) is fixedly mounted at the end of the driving rod (222), and the outer wall of the cleaning rod (223) is in contact with the inner wall of the placement groove (210).

8. The garden mower blade according to claim 1, characterized in that: The inner wall of the placement groove (210) is provided with a wear-resistant layer (211), and the wear-resistant layer (211) is configured as a polyurethane coating.

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