A grass discharge cover and a grass trimmer

Abstract

The application relates to a grass discharging cover and a mower, wherein the grass discharging cover is connected with a machine body of the mower and is used for covering a grass discharging opening of the machine body; the machine body comprises a reinforcing plate located at the position of the grass discharging opening; the grass discharging cover is reversibly connected with the reinforcing plate through a hinge; the grass discharging cover is connected with a locking mechanism; the locking mechanism comprises a reversible locking frame and a locking torsional spring arranged on the locking frame; the locking torsional spring is used for fixing the grass discharging cover in a state that the locking frame is fixedly abutted with the reinforcing plate; and a buffering mechanism is connected with the grass discharging cover and is opposite to the position of the reinforcing plate in the state that the grass discharging cover is reversely covered. The utility model can relieve the damage of the grass discharging cover, prolong the service life, reversibly fix the grass discharging cover during operation, reduce the vibration and collision between the grass discharging cover and the machine body during operation, and ensure the uniformity and stability of grass discharging.

Description

Technical Field

[0001] This application relates to the field of lawnmower technology, and more specifically, to a lawnmower cover and a lawnmower. Background Technology

[0002] In the existing structure of lawnmowers, the grass discharge cover used for grass discharge is generally made of plastic, and it is more common to install it by hinge or flip-over connection with the body of the lawnmower. The plastic grass discharge cover is easily damaged by impact during long-term use.

[0003] Meanwhile, in the existing grass discharge hood connection structure, on the one hand, it is not well fixed during the operation of the lawnmower, and on the other hand, it is easy to flip upward under the impact of grass during the grass discharge process, thus directly exposing the grass discharge opening and causing uneven grass discharge.

[0004] In addition, the hinged or overlapping installation relationship makes it easy for the hay to vibrate and collide with the machine body when the hay is impacted by the cover, which accelerates the damage of the cover and the noise generated seriously affects the user experience. Utility Model Content

[0005] The purpose of this application is to provide a grass discharge cover and a lawnmower that can reduce the impact of discharged grass on the grass discharge cover, alleviate damage and extend service life, and at the same time, can be well pressed and fixed during operation, reducing the vibration and collision between the grass discharge cover and the machine body during operation, and ensuring uniform and stable grass discharge.

[0006] To achieve the above objectives, in a first aspect, this utility model provides a grass discharge cover, which is connected to the body of a lawnmower and is used to cover the grass discharge port of the machine body. The machine body includes a reinforcing plate located at the grass discharge port, and the grass discharge cover is rotatably connected to the reinforcing plate via a hinge.

[0007] The straw discharge cover is connected to a locking mechanism, which includes a flip-up locking frame and a locking torsion spring disposed on the locking frame. The locking torsion spring is used to press down and fix the straw discharge cover while the locking frame is in contact with and fixed to the reinforcing plate.

[0008] The hay hood is connected to a buffer mechanism. When the hay hood is flipped over and covered, the buffer mechanism is positioned opposite the reinforcing plate.

[0009] In an optional embodiment, the straw discharge cover includes a bent cover plate made of metal, the outline of which follows the outline of the straw discharge opening, and the hinge is connected to the middle part of the bent cover plate.

[0010] In an optional embodiment, the top wall of the straw discharge hood is connected to a pair of spaced mounting ears, the locking frame is hinged between the mounting ears via a locking frame pin, and the locking torsion spring passes through the locking frame pin.

[0011] In an optional embodiment, the locking frame includes an elongated locking piece disposed opposite to the locking piece, the locking frame pin passing through the root of the locking piece and extending out of the pin hole of the mounting lug, and the two ends of the locking frame pin are respectively mounted in the axial upper limit by cotter pins.

[0012] In an optional embodiment, a locking handle is connected between the locking plates, the locking handle including a columnar handle passing through the locking handle and fixedly connected to the locking plates.

[0013] In an optional embodiment, the locking piece includes a hinge end and an abutment end, the locking frame pin passes through the hinge end, and the abutment end is provided with an arc-shaped chamfer.

[0014] There is at least a gripping gap between the locking handle and the hinge end and the abutment end;

[0015] When the straw hood is in the flipped-over covering state, the lateral end face of the abutting end is fixed to the side wall of the reinforcing plate.

[0016] In an optional embodiment, the buffer mechanism is disposed on both sides in the width direction of the straw discharge cover and connected to the downward folding portion of the bent cover plate.

[0017] In an optional embodiment, the bending cover plate is provided with a mounting plate for mounting the buffer mechanism. The buffer mechanism includes a buffer bolt and a buffer nail fixedly mounted on the buffer bolt. The buffer bolt passes through the mounting plate and is fixed by a buffer nut.

[0018] In an optional embodiment, the cushioning nail includes a cushioning ball head located at the end, the cushioning ball head being able to abut against the side wall of the reinforcing plate;

[0019] The buffer rubber nail has an installation ring surface at the other end opposite to the buffer ball head, and adjustment shims are respectively provided between the buffer nut and the mounting piece, and between the mounting ring surface and the mounting piece.

[0020] Secondly, the present invention provides a lawnmower, including a grass discharge cover as described in any of the foregoing embodiments, wherein the reinforcing plate includes an open enclosure plate disposed around the grass discharge opening.

[0021] The grass discharge cover in this invention can ensure that it is pressed down and fixed during the operation of the lawnmower, thus more effectively and stably collecting the discharged grass and avoiding uneven grass discharge.

[0022] By setting up necessary buffer mechanisms, the vibration and collision caused by resonance between the grass hood and the machine body during the operation of the lawnmower can be reduced when the grass hood is pressed down and fixed, so as to maximize flexible buffering and extend the service life of the grass hood.

[0023] Combined with a flexible buffer effect, it can prevent the grass cover from generating vibration noise and improve the user experience.

[0024] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the mating structure between the straw hood and the reinforcing plate in this application;

[0027] Figure 2 for Figure 1 A top-view structural diagram;

[0028] Figure 3 This is a schematic diagram of the installation structure of the grass cover on the lawnmower.

[0029] icon:

[0030] 1- Lawn mower; 11- Body; 12- Grass discharge port; 13- Reinforcing plate; 14- Hinge;

[0031] 2- Hay cover; 21- Mounting ear; 22- Mounting plate;

[0032] 3-Locking mechanism; 31-Locking frame; 32-Locking torsion spring; 33-Locking frame pin; 34-Locking plate; 34a-Hinged end; 34b-Abutting end; 34c-Chamfered corner; 35-Cotter pin; 36-Locking handle;

[0033] 4-Buffer mechanism; 41-Buffer bolt; 42-Buffer rubber nail; 43-Buffer ball head; 44-Adjusting shim; 45-Buffer nut. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] See Figure 1 and combined Figures 2-3 The grass hood 2 in this application mainly improves the overall operating status of the lawnmower 1 and extends the service life of the grass hood 2 by changing the material, shape and connection relationship between the existing grass hood 2 and the machine body 11, thereby enhancing the structural strength, reducing impact and collision damage, and extending the service life of the grass hood 2 component.

[0038] The grass discharge cover 2 in this utility model is connected to the body 11 of the lawnmower 1 and is used to cover the grass discharge port 12 of the body 11 to ensure that the cut grass is evenly discharged under the cover of the grass discharge cover 2 and to avoid splashing.

[0039] The body 11 includes a reinforcing plate 13 located at the grass discharge port 12. On the one hand, it is used to structurally reinforce the body 11 part of the grass discharge port 12, and on the other hand, it provides a structural foundation for the grass discharge cover 2.

[0040] From the angle at which the grass discharge cover 2 covers the grass discharge port 12, the grass discharge cover 2 is rotatably connected to the reinforcing plate 13 via the hinge 14, and can be flipped outward and downward relative to the body 11 of the lawnmower 1. The flipped position is locked by the locking mechanism 3 when the lawnmower 1 is running.

[0041] Starting from the angle of locking the grass discharge cover 2 in the outward and downward flipped state, the locking mechanism 3 is connected to the grass discharge cover 2. The locking mechanism 3 specifically includes a locking frame 31 that can flip on the grass discharge cover 2, and a locking torsion spring 32 set on the locking frame 31. Through the setting of the locking torsion spring 32, the grass discharge cover 2 can be locked in the downward flipped state during the operation of the lawnmower 1 by the abutment of the locking frame 31 and the outer wall of the reinforcing plate 13, while playing a good shock absorption effect.

[0042] The locking torsion spring 32 is used to maintain the outward tilting and fixing of the grass discharge cover 2 by pressing down on the grass discharge cover 2 through the outer fork while the locking frame 31 is abutting and fixed with the reinforcing plate 13.

[0043] When the lawnmower 1 is in operation and the grass discharge cover 2 is in the downward state, the end of the locking frame 31 is abutted and fixed to the front side of the reinforcing plate 13. Under the elastic action of the locking torsion spring 32 in the stressed state, the fork presses down and fixes the grass discharge cover 2. At the same time, the elastic force of the locking torsion spring 32 constitutes a shock absorption effect on the grass discharge cover 2 to a certain extent.

[0044] To reduce the vibration and collision between the grass discharge cover 2 and the machine body 11, a buffer mechanism 4 is connected to the grass discharge cover 2. When the grass discharge cover 2 is flipped over and covered, the buffer mechanism 4 and the reinforcing plate 13 are positioned opposite each other. Under the premise that the locking frame 31 and the locking torsion spring 32 press down and fix the grass discharge cover 2, the elastic contact between the grass discharge cover 2 and the reinforcing plate 13 through the buffer mechanism 4 creates a good vibration reduction effect. This allows the mechanical energy of vibration generated by the lawnmower 1 during operation to be released through the buffer mechanism 4, thereby reducing the vibration of the grass discharge cover 2 on the machine body 11.

[0045] In one specific embodiment, the hay cover 2 includes a bent cover plate made of metal. Preferably, the hay cover 2 is a welded steel plate structure. Compared with conventional plastic materials, the welded steel plate structure hay cover 2 has higher strength and can provide an installation structure foundation for the locking mechanism 3 and the buffer mechanism 4.

[0046] In order to effectively cover the grass discharge opening 12, the contour of the bent cover plate follows the contour of the grass discharge opening 12, forming a covering area above the grass discharge opening 12. At the same time, by connecting the hinge 14 to the middle part of the bent cover plate, while ensuring the stability and reliability of the connection, it can provide clearance space for the buffer mechanism 4, so that the buffer mechanism 4 can be distributed on both sides of the grass discharge cover 2. The buffer mechanism 4 can effectively reduce noise or excessive local stress during opening and closing, which affects its service life.

[0047] From the installation angle of the locking frame 31, and its ability to be flipped up or down relative to the grass discharge cover 2, the top wall of the grass discharge cover 2 is connected with a pair of spaced mounting ears 21. The locking frame 31 is hinged between the mounting ears 21 through the locking frame pin 33, so that the locking frame 31 can be flipped around the locking frame pin 33 in the through structure of the locking frame pin 33.

[0048] In order to ensure that the locking torsion spring 32 is under stress when the locking frame 31 is flipped and abuts against the reinforcing plate 13, the locking torsion spring 32 is threaded onto the locking frame pin 33. At the same time, the two branch forks of the locking torsion spring 32 are respectively set on the front and rear sides of the locking frame pin 33. One side presses down on the grass discharge cover 2, and the other side is set below the locking frame 31. When the locking frame 31 is flipped down and its end is kept abutting against the reinforcing plate 13, the two branch forks are under stress at the same time, especially ensuring that the outer fork can effectively press down and fix the grass discharge cover 2.

[0049] Based on the specific structure of the locking frame 31, the locking frame 31 includes a long strip-shaped locking piece 34 arranged opposite to each other. The locking frame pin 33 passes through the root of the locking piece 34 and extends out from the pin hole of the mounting ear 21. Both ends of the locking frame pin 33 are respectively installed in the axial upper limit by cotter pins 35. This arrangement allows the locking frame pin 33 to pass through both the locking piece 34 and the mounting ear 21 at the same time, while avoiding axial slippage and preventing the locking piece 34 from losing its connection with the mounting ear 21.

[0050] To facilitate the flipping operation of the locking frame 31, a locking handle 36 is connected between the locking plates 34. The locking handle 36 includes a columnar handle that passes through the locking handle 36 and is fixedly connected to the locking plate 34, so that the locking handle 36 and the locking plate 34 form a relatively integral structure.

[0051] Furthermore, the locking piece 34 includes a hinge end 34a and an abutment end 34b. The locking frame pin 33 passes through the hinge end 34a, and the abutment end 34b is provided with an arc-shaped chamfer 34c. The arc-shaped chamfer 34c facilitates the change of the abutment relationship between the end of the locking frame 31 and the reinforcing plate 13, preventing jamming.

[0052] Preferably, the locking handle 36 is located in the middle of the locking plate 34 near the abutment end 34b, so that there is at least a gripping gap between the locking handle 36 and the hinge end 34a and the abutment end 34b, which facilitates manual gripping of the locking handle 36.

[0053] When the grass cover 2 is in the flipped-over covering state, the side face of the abutting end 34b is abutted and fixed to the side wall of the reinforcing plate 13. Specifically, the side face of the abutting end 34b is abutted and fixed to the side wall of the reinforcing plate 13 facing outward. Combined with the elastic force of the locking torsion spring 32, it can maintain control of the locking frame 31 in a flexible buffering manner.

[0054] In another specific embodiment, the buffer mechanism 4 is disposed on both sides in the width direction of the hay cover 2 and connected to the downward folding part of the bent cover plate, thereby forming a connection point and a flexible contact point in the width direction of the hay cover 2, which is conducive to the uniform distribution of stress applied to the hay cover 2.

[0055] From an angle that facilitates the installation of the buffer mechanism 4, the bent cover plate is provided with a mounting plate 22 for installing the buffer mechanism 4, and the mounting plate 22 constitutes the root connection base structure of the buffer mechanism 4.

[0056] The buffer mechanism 4 includes a buffer bolt 41 and a buffer nail 42 fixedly mounted on the buffer bolt 41. The buffer nail 42 is positioned opposite to the reinforcing plate 13 and makes elastic contact with the surface of the reinforcing plate 13.

[0057] The buffer bolt 41 passes through the mounting plate 22 and is fixed by the buffer nut 45. This arrangement ensures the stable connection between the buffer nail 42 and the buffer bolt 41.

[0058] To ensure the cushioning effect, the cushioning nail 42 makes elastic contact with the reinforcing plate 13 in a point-contact manner. The cushioning nail 42 includes a cushioning ball head 43 located at the end, which can abut against the side wall of the reinforcing plate 13.

[0059] Meanwhile, in order to facilitate connection and installation, the other end of the buffer nail 42 relative to the buffer ball head 43 is provided with an installation ring surface. Specifically, the installation ring surface is formed by the countersunk hole of the buffer bolt 41 on the buffer nail 42 and the outer edge of the buffer nail 42.

[0060] Under the premise that the locking torsion spring 32 presses down and fixes the straw discharge cover 2, in order to balance the flexible buffering effect and the pressing and fixing effect of the buffer nail 42, adjusting shims 44 are respectively provided between the buffer nut 45 and the mounting plate 22, and between the mounting ring surface and the mounting plate 22. That is, by setting adjusting shims 44 on both sides of the mounting plate 22, the elastic contact force can be adjusted in terms of the number of shims and their thickness.

[0061] This utility model also provides a lawnmower 1, including the aforementioned grass discharge cover 2, and a reinforcing plate 13 including an open enclosure plate disposed around the grass discharge opening 12. Specifically, the reinforcing plate 13 is a semi-open enclosure plate structure, which can provide an installation base for the connection of the grass discharge cover 2, and at the same time facilitate the abutment of the locking frame 31 and the elastic contact of the buffer rubber nail 42 on the reinforcing plate 13, thereby improving the operating conditions of the lawnmower 1, reducing the impact damage to the grass discharge cover 2, and extending the service life of the grass discharge cover 2.

[0062] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0063] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A grass discharge cover, connected to the body of a lawnmower, for covering the grass discharge opening of the machine, characterized in that, The machine body includes a reinforcing plate located at the grass discharge port, and the grass discharge cover is rotatably connected to the reinforcing plate via a hinge; The straw discharge cover is connected to a locking mechanism, which includes a flip-up locking frame and a locking torsion spring disposed on the locking frame. The locking torsion spring is used to press down and fix the straw discharge cover while the locking frame is in contact with and fixed to the reinforcing plate. The hay hood is connected to a buffer mechanism. When the hay hood is flipped over and covered, the buffer mechanism is positioned opposite the reinforcing plate.

2. The straw-draining cover according to claim 1, characterized in that, The hay drain cover includes a bent metal cover plate, the outline of which follows the outline of the hay drain opening, and the hinge is connected to the middle part of the bent cover plate.

3. The straw-draining cover according to claim 1, characterized in that, The top wall of the straw discharge hood is connected to a pair of spaced mounting ears. The locking frame is hinged between the mounting ears via a locking frame pin, and the locking torsion spring passes through the locking frame pin.

4. The straw-draining cover according to claim 3, characterized in that, The locking frame includes an elongated locking piece disposed opposite to the locking piece. The locking frame pin passes through the root of the locking piece and extends out from the pin hole of the mounting lug. Both ends of the locking frame pin are respectively installed in the axial upper limit by cotter pins.

5. The straw-draining cover according to claim 4, characterized in that, A locking handle is connected between the locking plates. The locking handle includes a columnar handle that passes through the locking plates and is fixedly connected to them.

6. The straw-draining cover according to claim 5, characterized in that, The locking piece includes a hinge end and an abutment end, the locking frame pin passes through the hinge end, and the abutment end is provided with an arc-shaped chamfer; There is at least a gripping gap between the locking handle and the hinge end and the abutment end; When the straw hood is in the flipped-over covering state, the lateral end face of the abutting end is fixed to the side wall of the reinforcing plate.

7. The straw-draining cover according to claim 2, characterized in that, The buffer mechanism is located on both sides of the width direction of the straw discharge cover and is connected to the downward folding part of the bent cover plate.

8. The straw-draining cover according to claim 2, characterized in that, The bending cover plate is provided with a mounting plate for mounting the buffer mechanism. The buffer mechanism includes a buffer bolt and a buffer nail fixedly mounted on the buffer bolt. The buffer bolt passes through the mounting plate and is fixed by a buffer nut.

9. The straw-draining cover according to claim 8, characterized in that, The buffer nail includes a buffer ball head at the end, which can abut against the side wall of the reinforcing plate; The buffer rubber nail has an installation ring surface at the other end opposite to the buffer ball head, and adjustment shims are respectively provided between the buffer nut and the mounting piece, and between the mounting ring surface and the mounting piece.

10. A lawnmower, characterized in that, The grass discharge cover according to any one of claims 1-9, wherein the reinforcing plate includes an open enclosure plate disposed around the grass discharge opening.

Images