Quick replacement mechanism for cutter head of mowing machine

Abstract

The utility model discloses a mowing machine cutter head quick replacement mechanism which comprises a mowing machine body, a connecting cutter head and a blade, a motor is arranged at the top of the mowing machine body, the connecting cutter head is arranged in the mowing machine body, the connecting cutter head comprises a connecting base arranged in the mowing machine body, and the blade is arranged on the connecting base. The top end of the connecting base and the output end of the motor are connected with the mower body connecting base, a clamping block is transversely arranged in the connecting base in a sliding mode, a spring is arranged at one end of the clamping block, a limiting cover is arranged at the bottom of the connecting base, the spring pushes the clamping block to move so as to fix the position of the limiting cover, and the blade is arranged at the bottom of the connecting base. And the blade is connected with the connecting seat in a clamping manner. By arranging the cutter head and the blade, when the blade is replaced, the clamping block can be slid to overcome the elastic force of the spring, so that the limiting cover is unlocked to be detachable, the limiting cover for limiting the position of the blade can be taken down, and the blade replacement efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the lawn mower technical field, concretely is a quick replacement mechanism of lawn mower cutterhead. BACKGROUND

[0002] The lawn mower is the most commonly used one of prior art grass cutting equipment, and the lawn mower is also called the weeder, the grass cutter, the lawn trimmer and the like. The lawn mower is a mechanical tool for trimming lawns, vegetation and the like, which is composed of a cutterhead, an engine, a walking wheel, a walking mechanism, a blade, a handrail and a control part. The cutterhead is mounted on the walking wheel, the cutterhead is provided with the engine, the output shaft of the engine is provided with the blade, the blade is greatly improved in speed by the high-speed rotation of the engine, the working time of the weeding worker is saved, and a large amount of human resources is reduced.

[0003] The existing blade of the lawn mower is usually fixed on the cutterhead at the bottom of the lawn mower by screws, and when the blade is replaced, a special tool (such as a wrench) is needed to unscrew the screws for fixing the blade, so that the blade can be replaced, and the replacement efficiency of the blade is reduced. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a quick replacement mechanism of lawn mower cutterhead to solve the problem that the existing blade of the lawn mower is usually fixed on the cutterhead at the bottom of the lawn mower by screws, and when the blade is replaced, a special tool (such as a wrench) is needed to unscrew the screws for fixing the blade, so that the blade can be replaced, and the replacement efficiency of the blade is reduced.

[0005] To achieve the above object, the utility model provides the following technical scheme: a quick replacement mechanism of lawn mower cutterhead, which comprises a lawn mower body, a connecting cutterhead and a blade:

[0006] The top of the lawn mower body is provided with a motor, the connecting cutterhead is arranged in the inside of the lawn mower body, the connecting cutterhead comprises a connecting seat arranged in the inside of the lawn mower body, the top end of the connecting seat is connected with the output end of the motor, the inside of the connecting seat is horizontally slidably provided with a clamping block, one end of the clamping block is provided with a spring, the bottom of the connecting seat is provided with a limiting cover, the spring pushes the clamping block to displace to fix the position of the limiting cover, the blade is arranged at the bottom of the connecting seat, the blade is connected with the connecting seat in a clamping manner, and the top surface of the limiting cover abuts against the bottom surface of the blade to limit the position of the blade.

[0007] By adopting the above technical scheme, when the blade is replaced, the clamping block is slid to overcome the elastic force of the spring, so that the limiting cover is unlocked and can be detached, the limiting cover limiting the position of the blade can be removed, and the replacement efficiency of the blade is improved.

[0008] Preferably, the connecting cutter further comprises a sliding groove opened in the connecting seat, the sliding groove is opened with two, the two sliding grooves are centrally rotationally symmetrical around the rotation axis of the connecting seat, the two clamping blocks are embedded in the sliding grooves and are in transverse sliding connection with the sliding grooves, and the side surfaces of the two clamping blocks pass through the connecting seat and extend to the outside of the connecting seat.

[0009] By adopting the technical scheme, the two clamping blocks can be transversely slidably displaced in the connecting seat.

[0010] Preferably, the spring is arranged at one end of the clamping block facing the other clamping block, and the spring is located between the connecting seat and the clamping block.

[0011] By adopting the technical scheme, when the connecting seat rotates, the clamping block is not displaced inwardly due to the centrifugal force, so that the limiting cover is not unlocked.

[0012] Preferably, the connecting cutter further comprises a mounting groove opened in the bottom of the connecting cutter, and the blade is embedded in the mounting groove and is in sliding connection with the mounting groove.

[0013] By adopting the technical scheme, the blade can be embedded in the mounting groove.

[0014] Preferably, the connecting cutter further comprises three limiting columns arranged in the mounting groove and a limiting hole opened in the top surface of the blade, and the three limiting columns pass through the limiting hole and are in sliding connection with the limiting hole.

[0015] By adopting the technical scheme, the position of the blade can be limited in the connecting seat by embedding the limiting column in the limiting hole.

[0016] Preferably, the limiting cover is provided with a groove on both sides, and the groove is in abutment with the blade.

[0017] By adopting the technical scheme, the position of the blade can be further fixed by clamping the blade into the groove.

[0018] Preferably, the connecting cutter further comprises a clamping head arranged at the bottom of the clamping block and a fixing hole opened in the limiting cover, and the clamping head is in clamping connection with the fixing hole.

[0019] By adopting the technical scheme, the position of the limiting cover can be fixed on the bottom of the connecting seat by clamping the clamping head into the fixing hole.

[0020] Compared with the prior art, the utility model has the advantages that: by arranging the cutter and the blade, when the blade is replaced, the clamping block is slid to overcome the elastic force of the spring, so that the limiting cover is unlocked and can be detached, the limiting cover limiting the position of the blade is removed, and the efficiency of replacing the blade is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic view of the overall cross-sectional structure of the present application;

[0022] Figure 2 is a schematic view of the overall cross-sectional structure of the present application;

[0023] Figure 3 is a schematic view of the connecting cross-sectional structure of the cutter head and the blade of the present application;

[0024] Figure 4 is a schematic view of the connecting structure of the cutter head and the blade of the present application.

[0025] In the figure: 1, mower body; 101, motor; 2, connecting cutter head; 201, connecting seat; 202, sliding groove; 203, mounting groove; 204, limiting column; 205, clamping block; 206, clamping head; 207, spring; 208, limiting cover; 209, fixing hole; 3, blade; 301, limiting hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Embodiment one

[0028] Please refer to Figure 1 , Figure 2 and Figure 3 , the embodiment provides a technical solution: a mower cutter head quick replacement mechanism, comprising a mower body 1, a connecting cutter head 2 and a blade 3:

[0029] The top of the mower body 1 is provided with a motor 101, the inside of the mower body 1 has a certain space, the connecting cutter head 2 is arranged in the inside of the mower body 1, the connecting seat 201 is arranged in rotation in the inside of the mower body 1, the top end of the connecting seat 201 is connected with the output end of the motor 101, the connecting seat 201 of the mower body 1, the inside of the connecting seat 201 is transversely slidably provided with a clamping block 205, one end of the clamping block 205 is provided with a spring 207, the bottom of the connecting seat 201 is provided with a limiting cover 208, the spring 207 pushes the clamping block 205 to displace to fix the position of the limiting cover 208, the blade 3 is arranged at the bottom of the connecting seat 201, the blade 3 is clamped and connected with the connecting seat 201, the top surface of the limiting cover 208 abuts against the bottom surface of the blade 3 to limit the position of the blade 3. When replacing the blade 3, the clamping block 205 can be slid to overcome the elastic force of the spring 207, so as to unlock the limiting cover 208 to be detachable, so that the limiting cover 208 limiting the position of the blade 3 can be removed.

[0030] The effect of the embodiment one is that the limiting cover 208 can be quickly disassembled by sliding the clamping block 205, and the blade 3 can be replaced, so that the efficiency of replacing the blade 3 is improved.

[0031] Embodiment two

[0032] Please refer to Figure 2 、 Figure 3 and Figure 4 , the embodiment provides a technical scheme: A kind of cutter head quick replacement mechanism of mower, including connecting cutter head 2 and blade 3:

[0033] The sliding groove 202 is arranged inside the connecting seat 201, and two sliding grooves 202 are arranged, which are centrally rotationally symmetrical around the rotation axis of the connecting seat 201. The two clamping blocks 205 are embedded in the sliding grooves 202 and are transversely slidably connected with the sliding grooves 202. The side surfaces of the two clamping blocks 205 pass through the connecting seat 201 and extend to the outside of the connecting seat 201, so that the two clamping blocks 205 can be transversely slidably displaced inside the connecting seat 201. The spring 207 is arranged at one end of the clamping block 205 facing the other clamping block 205 and is located between the connecting seat 201 and the clamping block 205. When the connecting seat 201 rotates, the clamping block 205 is not affected by the centrifugal force and does not slide inwardly to cause the limiting cover 208 to be unlocked. The installation groove 203 is arranged at the bottom of the connecting cutter 2, the blade 3 is embedded in the installation groove 203 and is slidably connected with the installation groove 203, so that the blade 3 can be embedded in the installation groove 203. The limiting column 204 is arranged inside the installation groove 203. The limiting hole 301 is arranged on the top surface of the blade 3. The limiting column 204 is provided with three limiting columns 204, and the three limiting columns 204 pass through the limiting hole 301 and are slidably connected with the limiting hole 301. The position of the blade 3 can be limited inside the connecting seat 201 by embedding the limiting column 204 in the limiting hole 301. The recess is arranged on both sides of the limiting cover 208 and abuts against the blade 3. The blade 3 can be clamped in the recess, which can further fix the position of the blade 3. The clamping head 206 is arranged at the bottom of the clamping block 205. The fixing hole 209 is arranged inside the limiting cover 208. The clamping head 206 is clamped and connected with the fixing hole 209. The position of the limiting cover 208 can be fixed on the bottom of the connecting seat 201 by clamping the clamping head 206 in the fixing hole 209.

[0034] Working principle: first, when the blade 3 needs to be replaced, the entire mower body 1 is turned over, so that the connecting cutter 2 and the blade 3 at the bottom of the mower body 1 can be exposed inside the connecting seat 201, the sliding groove 202 is opened, the sliding groove 202 is opened, the two sliding grooves 202 are centrally rotationally symmetrical around the rotation axis of the connecting seat 201, the two clamping blocks 205 are embedded in the sliding groove 202 and are transversely slidingly connected with the sliding groove 202, the side surfaces of the two clamping blocks 205 pass through the connecting seat 201 and extend to the outside of the connecting seat 201, so that the two clamping blocks 205 can be transversely slidingly displaced inside the connecting seat 201, and then the sliding clamping block 205 is used to overcome the elastic force of the spring 207, so that the two clamping blocks 205 slide inward, so that the clamping head 206 is unlocked with the fixed hole 209, the spring 207 is arranged at one end of the clamping block 205 towards the other clamping block 205, and the spring 207 is located between the connecting seat 201 and the clamping block 205, so that when the connecting seat 201 rotates, the clamping block 205 is not slidingly displaced inward due to the centrifugal force, causing the limiting cover 208 to be unlocked, then the limiting cover 208 and the blade 3 are removed and replaced with a new blade 3, the mounting groove 203 is opened at the bottom of the connecting cutter 2, the blade 3 is embedded in the mounting groove 203 and is slidingly connected with the mounting groove 203, so that the blade 3 can be embedded in the mounting groove 203, the limiting column 204 is arranged inside the mounting groove 203, three limiting holes 301 are opened on the top surface of the blade 3, the limiting column 204 is provided with three limiting columns 204, the three limiting columns 204 pass through the limiting holes 301 and are slidingly connected with the limiting holes 301, the position of the blade 3 can be limited inside the connecting seat 201 by embedding the limiting column 204 into the limiting hole 301, then the limiting cover 208 is inserted into the bottom of the connecting seat 201, the clamping head 206 is arranged at the bottom of the clamping block 205, the fixed hole 209 is opened inside the limiting cover 208, the clamping head 206 is connected with the fixed hole 209, the clamping head 206 can be clamped into the fixed hole 209, and the position of the limiting cover 208 can be fixed on the bottom of the connecting seat 201, so as to complete the replacement operation of the blade 3, and improve the replacement efficiency of the blade 3.

[0035] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A quick-change mechanism for the blades of a lawnmower, characterized in that, include: The lawnmower body, with a motor installed on its top; A connecting blade disc is disposed inside the lawnmower body. The connecting blade disc includes a connecting seat disposed inside the lawnmower body. The top of the connecting seat is connected to the output end of the motor. A locking block is laterally slidably disposed inside the connecting seat. A spring is disposed at one end of the locking block. A limit cover is disposed at the bottom of the connecting seat. The spring pushes the locking block to move and fix the position of the limit cover. The blade is located at the bottom of the connecting seat and is engaged with the connecting seat. The top surface of the limiting cover abuts against the bottom surface of the blade (3) to limit and fix the position of the blade (3).

2. The quick-change mechanism for a lawnmower blade as described in claim 1, characterized in that: The connecting cutter head also includes two sliding grooves inside the connecting seat. The two sliding grooves are centrally rotationally symmetrical about the rotation axis of the connecting seat. The two locking blocks are embedded in the sliding grooves and slidably connected to them laterally. The sides of the two locking blocks pass through the connecting seat and extend to the outside of the connecting seat.

3. The quick-change mechanism for a lawnmower blade as described in claim 1, characterized in that: The spring is located at one end of the locking block facing another locking block, and the spring is located between the connecting seat and the locking block.

4. The quick-change mechanism for a lawnmower blade as described in claim 1, characterized in that: The connecting cutter head also includes a mounting groove formed at the bottom of the connecting cutter head, into which the blade is inserted and slidably connected.

5. A quick-change mechanism for a lawnmower blade as described in claim 3, characterized in that: The connecting cutter head also includes a limiting post disposed inside the mounting groove and a limiting hole opened on the top surface of the blade. There are three limiting posts, and the three limiting posts slide through the limiting hole and are slidably connected to it.

6. The quick-change mechanism for a lawnmower blade as described in claim 1, characterized in that: The limiting cover has grooves on both sides, which abut against the blade.

7. The quick-change mechanism for a lawnmower blade as described in claim 1, characterized in that: The connecting cutter head also includes a clamping head located at the bottom of the clamping block and a fixing hole opened inside the limiting cover, the clamping head engaging with the fixing hole.

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