CN214852845U

CN214852845U - Blade for lawn mower convenient to change

Info

Publication number: CN214852845U
Application number: CN202121625728.5U
Authority: CN
Inventors: 俞永明
Original assignee: Zhejiang Fuweite Mechanical Equipment Co ltd
Current assignee: Zhejiang Fuweite Mechanical Equipment Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-11-26
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a blade for lawn mower convenient to change, concretely relates to lawn mower technical field, including protecting crust, driving motor and blade, the bottom inboard at the protecting crust is installed to the blade, the top of protecting crust is located the center department top position department of blade and installs driving motor, the vertical coaxial coupling that makes progress of rotor portion of driving motor has the axis of rotation, the bottom of axis of rotation is provided with the inserted bar, locating component has been cup jointed to the outside of inserted bar, the outside position department that the middle part of blade corresponds the inserted bar place is provided with the jack, the bilateral symmetry of jack is provided with two locating holes, the bottom of blade is provided with just tears the base open, just tear fixedly connected with bracing piece between the bottom of base and the bottom inside wall of protecting crust open. The utility model discloses in the use, the atress of blade is more stable, improves the stability when the blade rotates, and makes things convenient for the blade to install and dismantle, is convenient for carry out quick replacement to impaired blade.

Description

Blade for lawn mower convenient to change

Technical Field

The utility model relates to a lawn mower technical field, more specifically say, the utility model relates to a blade for lawn mower convenient to change.

Background

The mower is a mechanical tool for trimming lawns, vegetations and the like, and comprises a cutter head, an engine, a traveling wheel, a traveling mechanism, blades, a handrail and a control part, wherein the cutter head is arranged on the traveling wheel, the engine is arranged on the cutter head, the blades are arranged on an output shaft of the engine, and the blades are greatly increased in speed by utilizing the high-speed rotation of the engine, so that the operation time of weeding workers is saved, and a large amount of manpower resources are reduced.

When the existing mower is used, the blade is basically stressed by the middle shaft, the blade is inclined easily to cause uneven mowing when rotating, the stability is poor, and the blade is not convenient to replace quickly.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a blade for lawn mower convenient to change, in the use, the atress of blade is more stable, improves the stability when blade rotates, and makes things convenient for the blade to install and dismantle, is convenient for carry out quick replacement to impaired blade to solve the problem of proposing in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a blade for lawn mower convenient to change, includes protecting crust, driving motor and blade, the bottom inboard at the protecting crust is installed to the blade, the top of protecting crust is located the center department top position department of blade and installs driving motor, the vertical upwards coaxial coupling of rotor portion of driving motor has the axis of rotation, the bottom of axis of rotation is provided with the inserted bar, positioning assembly has been cup jointed to the outside of inserted bar, the outside position department that the middle part of blade corresponds the inserted bar place is provided with the jack, the bilateral symmetry of jack is provided with two locating holes, the bottom of blade is provided with just tears the base open, just tear fixedly connected with bracing piece between the bottom of base and the bottom inside wall of protecting crust open.

In a preferred embodiment, the driving motor is fixedly connected with the top of the protective shell through a bolt, and the top of the inserted link and the bottom end of the rotating shaft are of an integral welding structure.

In a preferred embodiment, the locating component comprises an upper limiting plate sleeved outside the inserted rod, the cross section of the inserted rod is of a rectangular structure, a through hole is formed in the upper limiting plate and corresponds to the outside of the inserted rod, fixing plates are fixedly connected to two outer side walls of the upper limiting plate, and locating rods are arranged at positions, corresponding to the locating holes, of the bottoms of the two fixing plates.

In a preferred embodiment, the outer diameter of the cross section of the positioning rod is smaller than the inner diameter of the cross section of the positioning hole, and the through hole is matched with the cross section structure of the insert rod.

In a preferred embodiment, the just dismantled base includes the fixing base of fixed connection above the bracing piece tip, the top inboard of fixing base is connected with the activity post, the top of activity post is provided with down the limiting plate, and the tip of activity post is located the inside fixedly connected with fly leaf of fixing base, the outside that the inside of fixing base corresponds the fly leaf is provided with movable chamber along vertical direction, be connected with the spring between the tip of fly leaf and the inner wall in movable chamber.

In a preferred embodiment, a bearing seat is installed between the bottom of the lower limiting plate and the end of the movable column, and a slot is arranged at the top of the lower limiting plate corresponding to the outer position of the insertion rod.

In a preferred embodiment, the bottom end of the spring is welded to the inner wall of the movable chamber.

The utility model has the advantages that:

1. by arranging the positioning assembly, the positioning assembly comprises an upper limiting plate, a through hole, a fixing plate and a positioning rod, the positioning assembly can be assembled and disassembled outside the inserted rod, and the positioning rod on the positioning assembly can be inserted into the positioning hole when the blade is used, so that the stress of the blade is more stable, and the stability of the blade in rotation is further improved in the use process;

2. by arranging the easy-to-dismount base, the easy-to-dismount base comprises a fixed seat, a movable column, a lower limiting plate, a movable cavity and a spring, wherein a bearing seat is arranged between the bottom of the limiting plate and the end part of the movable column, the lower limiting plate can stably rotate along with a blade, a slot is formed in the top of the lower limiting plate corresponding to the outer position of the inserted rod, the inserted rod can be stably inserted into the top of the lower limiting plate to be connected, the movable column is driven to descend by pressing the lower limiting plate on the top of the easy-to-dismount base in the using process, the spring is compressed, at the moment, jacks and positioning holes in the blade are respectively aligned to the positions of the inserted rod and the positioning rod, after the blade is clamped, the lower limiting plate is loosened, the bottom of the inserted rod can be inserted into the slot in the top of the lower limiting plate, and in the rotating process of the blade, the bearing seat at the bottom of the lower limiting plate can ensure that the blade stably rotates without being affected, and then make things convenient for the blade to install and dismantle, be convenient for change impaired blade.

Drawings

Fig. 1 is an exploded view of the mounting of the middle blade of the present invention.

Fig. 2 is a side view of the blade mounting portion of the present invention.

Fig. 3 is a schematic structural diagram of the middle positioning assembly of the present invention.

Fig. 4 is a schematic structural view of the conveniently detachable base of the present invention.

The reference signs are: 1. a protective shell; 2. a drive motor; 3. a blade; 4. a rotating shaft; 5. inserting a rod; 6. a positioning assembly; 7. a jack; 8. positioning holes; 9. the base is convenient to disassemble; 10. a support bar; 61. an upper limiting plate; 62. a through hole; 63. a fixing plate; 64. positioning a rod; 91. a fixed seat; 92. a movable post; 93. a lower limiting plate; 94. a slot; 95. a movable plate; 96. a movable cavity; 97. a spring; 98. and a bearing seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The blade for the mower convenient to replace as shown in the attached drawings 1-4 comprises a protective shell 1, a driving motor 2 and a blade 3, wherein the blade 3 is installed on the inner side of the bottom of the protective shell 1, the driving motor 2 is installed at a position above the center of the blade 3 at the top of the protective shell 1, a rotor part of the driving motor 2 is vertically and upwards coaxially connected with a rotating shaft 4, an inserting rod 5 is arranged at the bottom of the rotating shaft 4, a positioning component 6 is sleeved outside the inserting rod 5, a jack 7 is arranged at the position, corresponding to the position of the inserting rod 5, in the middle of the blade 3, two positioning holes 8 are symmetrically arranged on two sides of the jack 7, a conveniently-disassembled base 9 is arranged at the bottom of the blade 3, and a supporting rod 10 is fixedly connected between the bottom end of the conveniently-disassembled base 9 and the inner side wall of the bottom of the protective shell 1.

As shown in fig. 1-2, the driving motor 2 is fixedly connected with the top of the protective shell 1 through a bolt, and the top of the insertion rod 5 and the bottom end of the rotating shaft 4 are in an integrated welding structure, so that the driving motor 2 can be conveniently installed and fixed, and the insertion rod 5 and the rotating shaft 4 can be conveniently fixed.

As shown in fig. 1-3, the positioning assembly 6 includes an upper limiting plate 61 sleeved outside the insert rod 5, the cross section of the insert rod 5 is of a rectangular structure, a through hole 62 is formed in the upper limiting plate 61 corresponding to the outside of the insert rod 5, fixing plates 63 are fixedly connected to two outer side walls of the upper limiting plate 61, and positioning rods 64 are arranged at positions corresponding to the positioning holes 8 at the bottoms of the two fixing plates 63, so that the stability of the blade 3 during rotation is improved in the using process.

As shown in fig. 1-3, the outer diameter of the cross section of the positioning rod 64 is smaller than the inner diameter of the cross section of the positioning hole 8, and the through hole 62 is matched with the cross section of the insertion rod 5, so that the positioning rod 64 can be stably inserted into the positioning hole 8.

As shown in fig. 1-2 and fig. 4, the easy-to-detach base 9 includes a fixing seat 91 fixedly connected above the end of the supporting rod 10, the inner side of the top of the fixing seat 91 is connected with a movable column 92, the top of the movable column 92 is provided with a lower limiting plate 93, the end of the movable column 92 is located on an inner fixedly connected movable plate 95 of the fixing seat 91, a movable cavity 96 is formed in the vertical direction of the outer portion of the fixed seat 91 corresponding to the movable plate 95, a spring 97 is connected between the end of the movable plate 95 and the inner wall of the movable cavity 96, so that in the using process, the easy-to-detach base 9 can facilitate the installation and detachment of the blade 3, and further facilitate the replacement of the damaged blade 3.

As shown in fig. 4, a bearing seat 98 is installed between the bottom of the lower limiting plate 93 and the end of the movable column 92, so that the lower limiting plate 93 can stably rotate along with the blade 3, and a slot 94 is formed in the position, corresponding to the outer position of the insertion rod 5, of the top of the lower limiting plate 93, so that the insertion rod 5 can be stably inserted into the top of the lower limiting plate 93 to achieve connection.

As shown in fig. 4, the bottom end of the spring 97 is welded to the inner wall of the movable chamber 96 to facilitate the installation of the spring 97.

The utility model discloses the theory of operation: the utility model relates to a blade for a mower convenient to replace, the concrete structure is shown in the attached figure 1-4 of the specification, in the technical scheme, a driving motor 2 runs to drive a rotating shaft 4 to rotate, the rotating shaft 4 drives an inserted bar 5 to rotate, the inserted bar 5 penetrates through the inside of the blade 3 to the top of a base 9 convenient to disassemble, the blade 3 can be driven to rotate, wherein, through arranging a positioning component 6, the positioning component 6 comprises an upper limiting plate 61 sleeved outside the inserted bar 5, the cross section of the inserted bar 5 is of a rectangular structure, the inside of the upper limiting plate 61 is provided with a through hole 62 corresponding to the outside of the inserted bar 5, two outer side walls of the upper limiting plate 61 are fixedly connected with fixing plates 63, the positions of the bottoms of the two fixing plates 63 corresponding to the positioning holes 8 are provided with positioning rods 64, the positioning component 6 can be assembled and disassembled outside the inserted bar 5, when the cutter blade is used, the positioning rod 64 on the positioning assembly 6 can be inserted into the positioning hole 8, so that the stress of the cutter blade 3 is more stable, and the stability of the cutter blade 3 in rotation is further improved in the using process; meanwhile, by arranging the easy-to-dismount base 9, the easy-to-dismount base 9 comprises a fixed seat 91, a movable column 92, a lower limiting plate 93, a movable plate 95, a movable cavity 96 and a spring 97, wherein a bearing seat 98 is arranged between the bottom of the limiting plate 93 and the end part of the movable column 92, so that the lower limiting plate 93 can stably rotate along with the blade 3, a slot 94 is arranged at the top of the lower limiting plate 93 corresponding to the outer position of the inserted link 5, so that the inserted link 5 can be stably inserted into the top of the lower limiting plate 93 to realize connection, so that in the using process, the movable column 92 is driven to descend by pressing the lower limiting plate 93 at the top of the easy-to-dismount base 9, the spring 97 is compressed, at the moment, the insertion hole 7 and the positioning hole 8 on the blade 3 are respectively aligned to the positions of the inserted link 5 and the positioning rod 64, after the blade 3 is clamped, the lower limiting plate 93 is loosened, the bottom of the inserted link 5 is inserted into the slot 94 at the top of the lower limiting plate 93, blade 3 rotates the in-process, and the bearing frame 98 of lower limiting plate 93 bottom can guarantee that blade 3 stably rotates and is not influenced, and then makes things convenient for blade 3 to install and dismantle, is convenient for change impaired blade 3.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a blade for lawn mower convenient to change, includes protecting crust (1), driving motor (2) and blade (3), its characterized in that: the utility model discloses a cutter blade, including protective housing (1), blade (3), driving motor (2), the vertical coaxial coupling that makes progress of rotor portion of driving motor (2) have axis of rotation (4), the bottom of axis of rotation (4) is provided with inserted bar (5), locating component (6) have been cup jointed to the outside of inserted bar (5), the outside position department that the middle part of blade (3) corresponds inserted bar (5) place is provided with jack (7), the bilateral symmetry of jack (7) is provided with two locating holes (8), the bottom of blade (3) is provided with just tears base (9) open, fixedly connected with bracing piece (10) between the bottom of just tearing base (9) and the bottom inside wall of protective housing (1).

2. The blade for a lawn mower of claim 1, wherein said blade is adapted to be replaced by: the driving motor (2) is fixedly connected with the top of the protective shell (1) through bolts, and the top of the inserted rod (5) and the bottom of the rotating shaft (4) are of an integrated welding structure.

3. The blade for a lawn mower of claim 1, wherein said blade is adapted to be replaced by: locating component (6) are including cup jointing limiting plate (61) on inserted bar (5) outside, the cross section of inserted bar (5) is the rectangle structure, the inside of going up limiting plate (61) corresponds the outside of inserted bar (5) and is provided with through-hole (62), and goes up the equal fixedly connected with fixed plate (63) of two lateral walls of limiting plate (61), and the position department that the bottom of two fixed plates (63) corresponds locating hole (8) place all is provided with locating lever (64).

4. A readily replaceable mower blade as claimed in claim 3 wherein: the outer diameter of the cross section of the positioning rod (64) is smaller than the inner diameter of the cross section of the positioning hole (8), and the through hole (62) is matched with the cross section structure of the insertion rod (5).

5. The blade for a lawn mower of claim 1, wherein said blade is adapted to be replaced by: just, tear base (9) open includes fixing base (91) of fixed connection in bracing piece (10) tip top, the top inboard of fixing base (91) is connected with movable post (92), the top of activity post (92) is provided with down limiting plate (93), and the tip of activity post (92) is located inside fixedly connected with fly leaf (95) of fixing base (91), the outside that the inside of fixing base (91) corresponds fly leaf (95) is provided with movable chamber (96) along vertical direction, be connected with spring (97) between the tip of fly leaf (95) and the inner wall in movable chamber (96).

6. The blade for a lawnmower easy to replace of claim 5, wherein: a bearing seat (98) is arranged between the bottom of the lower limiting plate (93) and the end part of the movable column (92), and a slot (94) is arranged at the position, corresponding to the outer part of the inserted rod (5), of the top of the lower limiting plate (93).

7. The blade for a lawnmower easy to replace of claim 5, wherein: the bottom end of the spring (97) is welded with the inner wall of the movable cavity (96).