Combined blade seat for mounting mower blade

Abstract

The utility model discloses a combined type blade bearing for installing a mower blade. The combined type blade bearing comprises a following seat, a blade bearing body, a bottom cover plate, a blade limiting structure and a bottom cover locking structure. According to the combined type blade seat for installing the mower blades, the two blades are pressed and positioned through the blade seat and the blade limiting structure, the blades are prevented from inclining and shaking in the rotating process, and the stability of the blades is guaranteed; two groups of blades can be mounted on the blade seat by utilizing two groups of blade windows, and different types of blades can be mounted to meet different mowing requirements; and the bottom cover plate is detachably mounted through the bottom cover locking structure, so that the blade limiting structure is conveniently mounted and dismounted to replace the blade.

Description

Technical Field

[0001] This utility model relates to a blade holder, and more particularly to a combined blade holder for mounting lawnmower blades. Background Technology

[0002] A lawnmower, also known as a lawn trimmer, is a mechanical tool used to cut lawns and vegetation. It typically consists of a blade disc, motor, blades, handle, and control unit. When vegetation on a lawn grows long, it is trimmed to improve its appearance; this is where lawnmowers come in. Currently, lawnmowers are mostly used in parks, private lawns, and recreational areas. However, in existing lawnmowers, the blades are primarily supported by a central shaft, resulting in poor stability, and the blades are difficult to adapt to different cutting needs. Utility Model Content

[0003] Purpose of the utility model: To provide a combined blade holder for mounting lawnmower blades, which has good rotational stability and allows for blade replacement as needed.

[0004] Technical Solution: The present invention provides a combined blade holder for mounting lawnmower blades, comprising a follower seat, a blade holder, a bottom cover, a blade limiting structure, and a bottom cover locking structure. The follower seat is fixed through the top of the blade holder for mounting on the output shaft of the lawnmower. Blade windows are provided on all four vertical sides of the blade holder. The blade windows on two opposite sides are positioned correspondingly, and the two sets of blade windows are located on the upper and lower sides of the blade holder, respectively. Both sets of blade windows are used for through-mounting of blades. The blade limiting structure is mounted on the blade holder for pressing and positioning two blades. A bottom window is provided at the bottom of the blade holder. The bottom cover is detachably mounted on the blade limiting structure via the bottom cover locking structure for embedding and sealing the bottom window.

[0005] Furthermore, the blade limiting structure includes a limiting bolt and two blade limiting seats; both blade limiting seats are located inside the blade seat; two limiting strips are provided on each of the two blade limiting seats; the limiting strips on the two blade limiting seats extend out of two sets of blade windows respectively; a mating groove and a mating block inserted into the mating groove are provided on each of the two blade limiting seats respectively; the end of the limiting bolt vertically penetrates the two blade limiting seats and is then threaded onto the follower seat; the bottom cover locking structure is snapped onto the bolt head of the limiting bolt.

[0006] Furthermore, the bottom cover locking structure includes an internal hexagonal tube and four locking units; each locking unit includes a locking tube, a locking protrusion, and a locking spring; a snap ring groove is provided on the bolt head of the limiting bolt; the internal hexagonal tube is fixed to the bottom cover plate for the bolt head of the limiting bolt to be inserted; the locking tube is fixed to the internal hexagonal tube in a continuous manner; the locking protrusion is telescopically installed on the locking tube; one end of the locking protrusion is hemispherical, used to insert into the internal hexagonal tube and snap onto the snap ring groove; the locking spring provides elastic support between the bottom of the locking tube and the other end of the locking protrusion.

[0007] Furthermore, a disassembly slot is provided on one side edge of the bottom cover.

[0008] Compared with the prior art, the advantages of this utility model are: the blade holder and the blade limiting structure press and position the two blades to prevent the blades from tilting and shaking during rotation, thus ensuring the stability of the blades; the two sets of blade windows allow the blade holder to install two sets of blades, which can install different types of blades to meet different mowing needs; the bottom cover plate can be detached and installed through the bottom cover locking structure, which facilitates the installation and removal of the blade limiting structure to replace the blades. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0011] Figure 3 This is a bottom view of the present invention;

[0012] Figure 4 This is a cross-sectional view of the blade limiting structure of this utility model;

[0013] Figure 5 This is a cross-sectional view of the bottom cover locking structure of this utility model;

[0014] In the diagram: 1. Follower seat; 2. Follower bolt; 3. Blade seat; 4. Blade window; 5. Protective edge; 6. Limit bolt; 7. Blade limit seat; 8. Snap ring groove; 9. Locking tube; 10. Hex socket tube; 11. Bottom cover plate; 12. Disassembly slot; 13. Limiting strip; 14. Connecting block; 15. Connecting groove; 20. Locking protrusion; 21. Locking spring. Detailed Implementation

[0015] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings, but the protection scope of this utility model is not limited to the described embodiments.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0017] In the description of this utility model, it should be understood that the terms "left", "right", "front", "back", "up", "down", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model 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 utility model.

[0018] Example 1:

[0019] like Figure 1-5 As shown, the present invention provides a combined blade holder for installing lawnmower blades, comprising: a follower seat 1, a blade holder 3, a bottom cover plate 11, a blade limiting structure, and a bottom cover locking structure; the follower seat 1 is fixed through to the top of the blade holder 3 for inserting the output shaft of the lawnmower; a follower bolt 2, which passes through the output shaft of the lawnmower, is threaded through the follower seat 1; blade windows 4 are provided on the four vertical sides of the blade holder 3; the blade windows 4 on two opposite sides are positioned correspondingly, and the two sets of blade windows 4 are located on the upper and lower sides of the blade holder 3 respectively; both sets of blade windows 4 are used for through-mounting of blades; the blade limiting structure is installed on the blade holder 3 for pressing and positioning two blades; a bottom window is provided at the bottom of the blade holder 3; the bottom cover plate 11 is detachably installed on the blade limiting structure through the bottom cover locking structure for embedding and sealing the bottom window; each blade window 4 is mated with a U-shaped protective edge 5, with the upper protective edge 5 opening upwards and the lower protective edge 5 opening downwards.

[0020] The blade holder 3 and the blade limiting structure are used to press and position the two blades to prevent them from tilting or shaking during rotation and to ensure the stability of the blades. The two sets of blade windows 4 allow the blade holder 3 to install two sets of blades, which can be installed with different types of blades to meet different mowing needs. The bottom cover 11 can be detached and installed through the bottom cover locking structure, which makes it easy to install and remove the blade limiting structure to replace the blades. The protective edge 5 provides a certain degree of protection for the blades.

[0021] Furthermore, the blade limiting structure includes a limiting bolt 6 and two blade limiting seats 7; both blade limiting seats 7 are located inside the blade seat 3; limiting strips 13 are provided on the two opposite edges of the upper side of the upper blade limiting seat 7 and the two opposite edges of the lower side of the lower blade limiting seat 7; the limiting strips 13 on the upper and lower sides extend out of two sets of blade windows 4 respectively; a mating groove 15 and a mating block 14 inserted into the mating groove 15 are respectively provided on the lower side of the upper blade limiting seat 7 and the upper side of the lower blade limiting seat 7; the limiting bolt 6 vertically penetrates the center of the two blade limiting seats 7, and its end thread is screwed onto the follower seat 1; the bottom cover locking structure is snapped onto the bolt head of the limiting bolt 6.

[0022] The mating groove 15 and the mating block 14 can be used to lock and limit the two blade limit seats 7. By replacing the blade limit seats 7 with different thicknesses, different types of blades can be adapted to improve versatility. The limit strip 13 can limit the blade and reduce the possibility of blade wobbling during rotation.

[0023] Furthermore, the bottom cover locking structure includes an internal hexagonal tube 10 and four locking units; each locking unit includes a locking tube 9, a locking protrusion 20, and a locking spring 21; a snap ring groove 8 is coaxially provided on the bolt head of the limiting bolt 6; the internal hexagonal tube 10 is fixed to the upper side of the bottom cover plate 11 for the bolt head of the limiting bolt 6 to be inserted; the locking tube 9 is fixed to the vertical side wall of the internal hexagonal tube 10; the locking protrusion 20 is telescopically installed on the locking tube 9; a limiting groove is provided along the length direction on the inner wall of the locking tube 9; a limiting protrusion that slides along the limiting groove is provided on the locking protrusion 20; one end of the locking protrusion 20 is hemispherical, used to insert into the internal hexagonal tube 10 and snap onto the snap ring groove 8; the locking spring 21 is elastically supported between the bottom of the locking tube 9 and the other end of the locking protrusion 20.

[0024] The locking spring 21 drives the hemispherical end of the locking protrusion 20 to extend into the internal hexagonal tube 10 and then lock it onto the locking ring groove 8. The hemispherical end of the locking protrusion 20 makes the bottom cover locking structure easy to install and remove, realizing the detachable installation of the bottom cover plate 11, which facilitates the removal of the blade limiting structure for blade replacement. The cooperation between the internal hexagonal tube 10 and the bolt head of the limiting bolt 6 can realize the rotation limit of the limiting bolt 6, preventing the limiting bolt 6 from rotating and loosening during operation.

[0025] Furthermore, a disassembly slot 12 is provided on one side edge of the bottom cover plate 11. The disassembly slot 12 facilitates the disassembly of the bottom cover plate 11.

[0026] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A combined blade holder for mounting lawnmower blades, characterized in that: It includes a follower seat (1), a blade holder (3), a bottom cover (11), a blade limiting structure, and a bottom cover locking structure; the follower seat (1) is fixed through to the top of the blade holder (3) for mounting on the output shaft of the lawnmower; blade windows (4) are provided on the four vertical sides of the blade holder (3); the blade windows (4) on the two opposite sides are positioned correspondingly, and the two sets of blade windows (4) are located on the upper and lower sides of the blade holder (3) respectively; both sets of blade windows (4) are used for through-mounting of blades; the blade limiting structure is installed on the blade holder (3) for pressing and positioning the two blades; a bottom window is provided at the bottom of the blade holder (3); the bottom cover (11) is detachably installed on the blade limiting structure through the bottom cover locking structure for embedding and sealing the bottom window.

2. The combined blade holder for mounting lawnmower blades according to claim 1, characterized in that: The blade limiting structure includes a limiting bolt (6) and two blade limiting seats (7); both blade limiting seats (7) are located inside the blade seat (3); two limiting strips (13) are provided on each of the two blade limiting seats (7); the limiting strips (13) on the two blade limiting seats (7) extend out of two sets of blade windows (4); a docking groove (15) and a docking block (14) inserted into the docking groove (15) are provided on each of the two blade limiting seats (7); the end of the limiting bolt (6) vertically passes through the two blade limiting seats (7) and is screwed onto the follower seat (1); the bottom cover locking structure is snapped onto the bolt head of the limiting bolt (6).

3. The combined blade holder for mounting lawnmower blades according to claim 2, characterized in that: The bottom cover locking structure includes an internal hexagonal tube (10) and four locking units; the locking unit includes a locking tube (9), a locking protrusion (20) and a locking spring (21); a snap ring groove (8) is provided on the bolt head of the limiting bolt (6); the internal hexagonal tube (10) is fixed on the bottom cover plate (11) for the bolt head of the limiting bolt (6) to be inserted; the locking tube (9) is fixed on the internal hexagonal tube (10) in a connected manner; the locking protrusion (20) is telescopically installed on the locking tube (9); one end of the locking protrusion (20) is hemispherical and is used to snap into the snap ring groove (8) after being inserted into the internal hexagonal tube (10); the locking spring (21) is elastically supported between the bottom of the locking tube (9) and the other end of the locking protrusion (20).

4. The combined blade holder for mounting lawnmower blades according to claim 1, characterized in that: A disassembly slot (12) is provided on one side edge of the bottom cover plate (11).

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