CN221240862U - Cutter head structure and mower - Google Patents

Abstract

The embodiment of the application provides a cutter head structure and a mower, comprising: a cutterhead; at least one cutter which is detachably arranged on the cutter head, wherein each cutter is provided with an opening; the mounting assembly corresponds to the at least one cutter and comprises a mounting hole and a connecting rod, the mounting hole is formed in the cutter head, the connecting rod is provided with an inserting section, a locking section and a limiting end cap which are sequentially arranged along the axis of the rod, and the connecting rod is arranged in the mounting hole; the cutter head structure is provided with a locking state and a disassembling state, and in the locking state, a locking section of the connecting rod enters a corresponding opening, and the cutter is limited between the cutter head and the limiting end cap; in the disassembled state, the connecting rod is separated from the corresponding opening through the inserting section. In the technical scheme of the application, the connecting rod leaves the locking position, and the inserting section is exposed, so that the quick dismounting of the cutter is convenient. When the inserting section enters the opening, the acting force is removed, and the locking section can lock the cutter rapidly. The operation of the user is simple, and the user is not easy to be injured.

Description

Cutter head structure and mower

Technical Field

The application relates to the field of electrical equipment, in particular to a cutter head structure and a mower.

Background

Today, the trimming work on lawns is usually performed using a mower. The mower not only has high efficiency, but also can trim the lawn neatly and uniformly when trimming the lawn. In order to have a high mowing speed, mowers typically employ rotatable cutterheads to cut the lawn. The cutter head is provided with a centrifugal blade which is small and sharp, and various grass can be easily cut off in the rotating process.

However, the sharp blade needs to be replaced after a certain time, and because the blade is usually fixed on the cutterhead through a fastening screw, a user needs to use a screwdriver when disassembling the blade, and the mode is troublesome in disassembly and easy to cut hands.

Disclosure of utility model

In view of the foregoing, the present application has been made to solve the foregoing problems, or at least partially solve the foregoing problems, as well as a cutterhead structure and a mower.

In one embodiment of the present application, there is provided a cutterhead structure comprising:

A cutterhead;

At least one cutter is detachably arranged on the cutter disc, and each cutter is provided with an opening;

the mounting assembly corresponds to the at least one cutter and comprises a mounting hole and a connecting rod, the mounting hole is formed in the cutter disc, the connecting rod is provided with an inserting section, a locking section and a limiting end cap which are sequentially arranged along the axis of the rod, and the connecting rod is arranged in the mounting hole;

the cutter head structure is provided with a locking state and a disassembling state, under the locking state, a locking section of the connecting rod enters the corresponding opening, and the cutter is limited between the cutter head and the limiting end cap; in the disassembled state, the connecting rod is separated from the corresponding opening through the inserting section.

Optionally, the cutter is provided with a socket groove, the socket groove is communicated with the opening, and the width of the socket groove is smaller than the diameter of the opening.

Optionally, the plugging section is matched with the plugging groove, and the locking section is matched with the opening.

Optionally, the connecting rod is movable along a rod axis to switch between the locked state and the disassembled state;

In the disassembled state, the inserting groove can be inserted into the inserting section and move to the inserting section to enter the open hole; after the force disappears, the inserting section is hidden, and the connecting rod is switched to the locking state.

Optionally, the cutterhead is provided with a mounting surface and an operating surface opposite to the mounting surface, and the locking section locks the cutter on one side of the mounting surface;

The connecting rod further comprises an operation end arranged along the rod axis, and the operation end and the limiting end cap are respectively positioned at two ends of the connecting rod;

the operation end is positioned at one side of the operation surface.

Optionally, the device further comprises an elastic piece, wherein one end of the elastic piece is abutted with the operation end, and the other end of the elastic piece is abutted with the cutterhead so as to provide elastic force to drive the connecting rod to return along the rod axis.

Optionally, a shaft sleeve is arranged in the mounting hole;

A limiting strip extending along the axial direction of the shaft sleeve is arranged on the inner surface of the shaft sleeve;

The position of the shaft sleeve corresponding to the limit bar is provided with a jack, the elastic piece is a spring, and one end of the spring is inserted into the jack.

Optionally, a longitudinal chute is arranged on the connecting rod; when the connecting rod moves up and down, the limiting strip slides in the longitudinal sliding groove.

Optionally, a transverse chute is arranged on the connecting rod;

The connecting rod rotates, the limiting strip slides into the transverse chute, and the end part of the limiting strip is abutted with the side wall of the chute so as to limit the connecting rod to act downwards.

Optionally, the cutter is provided with a mounting section and a cutting section, and the cutting section is arranged on the outer side of the edge of the cutterhead;

The inserting groove and the open hole are arranged on the mounting section, the inserting groove extends inwards from the edge of the cutter, and the open hole is positioned at the tail end of the inward extending inserting groove;

The height of the locking section in the axial direction is greater than the thickness of the tool.

Optionally, the plugging section is provided with two grooves which are symmetrical relative to the axis of the rod;

The locking section is a cylindrical section;

The ratio of the cross-sectional diameter of the locking section to the minimum thickness of the plug section in a direction perpendicular to the rod axis is: 1.5 to 2.

Optionally, the cutter head includes a platform column main part and annular limit, the annular limit is equipped with a plurality of installation positions, the cutter passes through the connecting rod connect in on the installation position.

There is also provided in one embodiment of the present application a lawnmower, comprising:

The device body and the cutter head structure;

the cutter head structure is arranged at the bottom of the equipment body.

In the technical scheme of the embodiment of the application, the connecting rod is forced to move away from the locking position along the rod axis, and the inserting section is exposed, so that the quick assembly and disassembly of the cutter are convenient. When the cutter is installed, when the inserting section enters the opening, after the acting force is removed, the locking section enters the opening, and the cutter can be quickly locked. The user is easy to operate, other tools are not needed when the cutter is disassembled and assembled, and the cutter is not easy to be injured.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a cutterhead structure provided in an embodiment of the present application;

Fig. 2 is a cross-sectional view of a cutterhead according to an embodiment of the present application;

FIG. 3 is a partial view of area A of FIG. 2;

Fig. 4 is another perspective view of a cutterhead structure according to an embodiment of the present application;

FIG. 5 is a partial view of region B of FIG. 4;

FIG. 6 is a block diagram of a tool according to an embodiment of the present application;

FIG. 7 is a block diagram of a connector according to an embodiment of the present application;

fig. 8 is a cross-sectional view of a mower according to an embodiment of the present application.

Detailed Description

In order to enable those skilled in the art to better understand the present application, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present application with reference to the accompanying drawings.

The described embodiments of the application are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect. In addition, in the embodiment of the present application, plural means two or more. Those skilled in the art may combine and combine the features of the different embodiments or examples described in this specification and of the different embodiments or examples without contradiction. The terms "first," "second," and the like herein are used for distinguishing between different directions, structures, elements, etc., and not for describing a sequential order. In addition, the embodiments described below are only some, but not all, of the embodiments of the present application.

Fig. 1 is a perspective view of a cutterhead structure provided by an embodiment of the present application, and fig. 2 is a cross-sectional view of a cutterhead structure provided by an embodiment of the present application. Referring to fig. 1 to 7, in one embodiment of the present application, there is provided a cutterhead structure including: cutterhead 1, at least one cutter 2 and at least one mounting assembly. Each tool 2 is provided with a communicating socket 21 and an aperture 22, the width of the aperture 22 being greater than the width of the socket 21. The installation component corresponds with at least one cutter 2, and the installation component includes mounting hole 13 and connecting rod 3, and mounting hole 13 is located on blade disc 1, and mounting hole 13 is the through-hole of locating on blade disc 1. The connecting rod 3 has a plug section 31, a locking section 32 and a limiting end cap 12 arranged in sequence along the rod axis a, the size of the plug section 31 being smaller than the size of the locking section 32. The connecting rod 3 is arranged in the mounting hole 13, the plug section 31 is matched with the plug groove 21, and the locking section 32 is matched with the opening 22. It will be appreciated that the dimensions of the socket section 31 match the dimensions of the socket slot 21 and the dimensions of the locking section 32 match the dimensions of the aperture 22. For example, in one embodiment, the plugging slot 21 is a sliding slot, the opening 22 is a circular hole, the connecting rod 3 is a circular rod, the plugging section 31 is a long strip, the slot degree of the plugging slot 21 is greater than or equal to the thickness of the plugging section 31, the aperture of the opening 22 is greater than or equal to the diameter of the locking section 32, and the aperture of the mounting hole 13 is smaller than the diameter of the limiting end cap 12.

Further, the cutters 2 are detachably mounted on the cutterhead 1, and the number of the cutters 2 arranged on the cutterhead 1 can be more than one or 1. When a plurality of cutters 2 are arranged on the cutter head 1, the cutters 2 are uniformly distributed on the cutter head 1 along the circumferential direction of the cutter head 1. The number of the tools 1 corresponds to the number of the mounting units. It will be appreciated that a mounting assembly is provided corresponding to a cutter 2 for mounting a cutter 2 to the cutterhead 1.

The cutter head structure has a locking state and a disassembling state, and in the locking state, the locking section 32 of the connecting rod 3 enters the corresponding opening 22, and the cutter 2 is limited between the cutter head 1 and the limiting end cap 12. In the disassembled state, the connecting rod 3 is separated from the corresponding opening 22 through the inserting section 31, and the cutter can be separated from the cutter head 1. Specifically, the connecting rod 3 is movable up and down along the axis of the mounting hole 13, and when the tool 2 needs to be mounted or dismounted, the connecting rod 3 is forced to move away from the locking position along the rod axis a, the insertion section 31 is exposed, the insertion groove 21 is inserted into the insertion section 31, and the insertion section 31 moves to the insertion section 31 entering the opening 22 along the extending direction of the insertion groove 21. After the force disappears, the connecting rod 3 returns to the locking position, the inserting section 31 is hidden, the locking section 32 enters the opening 22, and the cutter 2 is limited between the cutter head 1 and the limiting end cap 12. When the connecting rod 3 is in the locking position, the connecting rod 3 is used for connecting the cutter 2 with the cutter head 1, so that the cutter 2 is prevented from being separated from the cutter head 1 in the rotating process of the cutter head 1.

In a specific embodiment, when the cutter 2 is installed, the cutter head structure is in a locking state in an initial state, and by applying a force to the connecting rod 3, the connecting rod 3 moves along the rod axis a, and leaves the locking position, so that the cutter head structure is switched to a disassembling state. The detached state may be considered as a detached state, and the cutter head structure may be in this state, i.e., the cutter 2 on the connecting rod 3 may be detached, or the cutter 2 may be attached to the connecting rod 3 without the cutter 2. In the disassembled state, when the cutter 2 needs to be installed, the inserting groove 21 on the cutter 2 can be inserted into the exposed inserting section 31, after the cutter 2 is installed in place (the inserting section 31 enters the hole 22 of the cutter 2), the acting force applied to the connecting rod 3 is removed, the connecting rod 3 moves reversely along the rod axis A to return to the locked position, and the locking section 32 enters the hole 22 of the cutter 2, so that the cutter 2 is locked, and the installation and locking of the cutter 2 are completed. When the cutter 2 needs to be detached from the cutter head 1, an acting force is applied to the connecting rod 3 in the same way, so that the connecting rod 3 leaves the locking position, the cutter head structure is switched to a detaching state, the cutter 2 is in an unlocking state, the opening 22 of the cutter 2 is moved to the inserting section 31 of the connecting rod 3, then the cutter 2 can slide out of the inserting section 31 through the inserting groove 21, the cutter 2 is separated from the cutter head 1, and the detachment of the cutter 2 is completed.

The cutter head structure provided by the application is generally applied to a mower, a driving device is arranged on the mower to drive the cutter head 1 to rotate, and the cutter 2 rotates along with the cutter head 1 to form cutting force. As the cutter 2 wears, the cutter 2 on the cutterhead 1 needs to be replaced periodically. Compared with the prior mode of fixing the cutter 2 through the fastening screw, the cutter 2 is fixed through the connecting rod 3, so that the stability of the connection between the cutter 2 and the cutter head 1 can be ensured, and a user can conveniently assemble and disassemble the cutter 2. Through the mode of fastening screw fixed cutter 2, need use supporting screwdriver when dismouting cutter 2, the dismouting step is complicated, and user's hand is also very easily cut.

In the technical scheme of the embodiment of the application, the connecting rod 3 is forced to move away from the locking position along the rod axis A, and the inserting section 31 is exposed, so that the cutter 2 can be conveniently and quickly disassembled. When the tool 2 is mounted, the locking section 32 enters the opening 22 after the insertion section 31 enters the opening 22 and the acting force is removed, so that the tool 2 can be locked quickly. The user is easy to operate, other tools are not needed when the cutter 2 is dismounted, and the cutter is not easy to be injured.

Referring to fig. 1-7, the cutterhead 1 has a mounting surface 14, and the locking segment 32 locks the cutter 2 to one side of the mounting surface 14, and as the cutterhead 1 rotates, the mounting surface 14 of the cutterhead 1 can also be considered as a cutting surface of the cutter 2. Typically the cutting surface of the cutter 2 is directed towards the ground for a better cutting effect. In order to further improve the safety of the user when the cutter 2 is assembled and disassembled, the cutter is further provided with an operation surface 15 opposite to the installation surface 14, the connecting rod 3 further comprises an operation end 5 arranged along the rod axis A, the operation end 5 and the limiting end cap 12 are respectively positioned at two ends of the connecting rod 3, and the operation end 5 is positioned at one side of the operation surface 15. When the user applies a force to the operating end 5 on the operating surface 15, the user can move away from the tool 2 on the mounting surface 14 as far as possible so as not to be cut. To facilitate the installation of the connecting rod 3 in the mounting hole 13, the operating end 5 is configured as a nut which is detachably connected to one end of the connecting rod 3, the diameter of the nut being larger than the diameter of the connecting rod 3 and equal to the diameter of the limiting end cap 12.

Further, the connecting rod 3 can be returned to the locking position for the moment when the force applied to the operating end 5 by the user is removed. The cutter head structure also comprises an elastic piece 4, and the elastic force of the elastic piece 4 drives the connecting rod 3 to return to the locking position. Specifically, one end of the elastic member 4 abuts against the operation end 5, the other end abuts against the cutterhead 1, when an acting force is applied to the connecting rod 3, the elastic member 4 is compressed, and after the acting force is removed, the elastic member 4 provides an elastic force to drive the connecting rod 3 to return to a locking position along the rod axis a.

Referring to fig. 3 to 5, in order to improve the wear resistance of the mounting hole 13, a sleeve 9 is disposed in the mounting hole 13, and the sleeve 9 may be made of a wear-resistant material such as brass, stainless steel, bearing steel, ceramic, etc. The inner surface of the sleeve 9 is provided with a limit bar 10 extending along the axial direction of the sleeve 9, and the limit bar 10 can be considered as a convex rib protruding on the inner wall of the sleeve 9. For example, referring to fig. 3, the stopper 10 extends from one end of the boss 9 toward the operation face 15 toward the inside of the boss 9 in the axial direction thereof, and the length of the stopper 10 is approximately equal to one half of the length of the boss 9. In order to facilitate the fixation of the elastic member 4 sleeved on the operation end 5, the position of the shaft sleeve 9 corresponding to the limit bar 10 is provided with a jack 41, the elastic member 4 is a spring, and one end of the spring is inserted into the jack 41. In a specific embodiment, the outer wall of the sleeve 9 is stepped, and the cutter 1 is usually an injection molding piece, the sleeve 9 is embedded on the cutter 1, and the stepped outer wall can improve the connection strength between the sleeve 9 and the cutter 1.

Referring to fig. 3 to 6, in one embodiment provided by the present application, the connecting rod 3 is provided with a longitudinal sliding groove 33, and the limit bar 10 slides in the longitudinal sliding groove 33 when the connecting rod 3 moves up and down. The depth of the longitudinal grooves 33 is approximately the same as the height of the protrusions of the stop strips 10. The longitudinal sliding groove 33 extends from the middle section of the connecting rod 3 to the operation end 5, and when the connecting rod 3 moves downwards along the axis of the mounting hole 13, the limit bar 10 is matched with the longitudinal sliding groove 33 to limit the connecting rod 3 from rotating when moving downwards. In the technical scheme provided by the application, the longitudinal sliding grooves 33 on the connecting rod 3 can be one or more, the limit strips 10 on the inner wall of the shaft sleeve 9 can be one or more, and the number of the longitudinal sliding grooves 33 is the same as that of the limit strips 10.

Further, the connecting rod 3 is provided with a transverse chute 34, and when the connecting rod 3 is in the locking position, the connecting rod 3 can be rotated. Along with the rotation of the connecting rod 3, the transverse chute 34 also rotates along with the rotation, the limit bar 10 slides into the transverse chute 34, and the end part of the limit bar 10 is abutted with the side wall of the chute to limit the downward action of the connecting rod 3. Through set up horizontal spout 34 on connecting rod 3, and then when connecting rod 3 locks cutter 2, spacing 10 and horizontal spout 34 mutually support in order to lock connecting rod 3, effectively prevent that the downward action of non-artificial effort drive connecting rod 3 from unblock cutter 2.

Referring to fig. 1, 6 and 7, in one embodiment of the present application, the cutter 2 has a mounting section and a cutting section, the cutting section is disposed outside the edge of the cutter head 1, and when the cutter head 1 rotates, the cutting section of the cutter 2 forms an annular cutting surface outside the cutter head 1. The tool 2 can be considered as being divided into two sections, one section being a mounting section and the other section being a cutting section, the insertion groove 21 and the opening 22 being provided in the mounting section, the insertion groove 21 extending inwardly from the edge of the tool 2, the opening 22 being located at the end of the inward extension of the insertion groove 21. Specifically, the cutter 2 has a center line C in the longitudinal direction, the socket 21 extends inwardly from the edge of the cutter 2 along the center line C of the cutter 2, and the opening 22 is connected to the inwardly extending end of the socket 21. When the cutter 2 is mounted on the connecting rod 3, the width of the inserting groove 21 is the same as that of the inserting section 31 and smaller than that of the locking section 32, so that the cutter 2 can be inserted into the inserting section 31 only through the inserting groove 21 to realize the dismounting of the cutter 2. When the locking segment 32 is connected in the opening 22, the locking segment 32 can be locked to the tool 2 because the locking segment 32 cannot slide out of the insertion groove 21 although the opening 22 and the insertion groove 21 are communicated with each other. In order to optimize the structure of the cutter 2, notches 23 are respectively arranged at the left and right opposite angles of the mounting section, and cutting edges 24 are respectively arranged at the left and right cutting edges of the cutting section.

Referring to fig. 3, in one embodiment provided by the present application, the height of the locking section 32 in the axial direction is greater than the thickness of the tool 2. When the connecting rod 3 is in the locked position, the limit cap 12 does not abut the cutter 2 against the mounting surface 14 of the cutterhead 1. The tool 2 locked by the locking section 32 can move up and down in the locking section 32 along the rod axis a of the connecting rod 3. This way of connection makes it possible to change the knife 2 into a centrifugal flail, the cutting section of the knife 2 extending beyond the edge of the knife 2 when the cutterhead 1 is rotated at high speed. The cutter 2 which can rotate around the connecting rod 3 can be retracted in time when the cutter 2 encounters an obstacle, so that the cutter 2 is prevented from being damaged. In addition, when the cutterhead 1 is used for cutting weeds with harder stems, a plurality of cutters 2 can be arranged in the locking section 32, so that the overall strength of the cutter 2 group is improved, the cutting force of the cutter 2 group is improved, and the single-piece cutters 2 are effectively prevented from being broken easily.

Referring to fig. 7, in one embodiment of the application, the plug section 31 has two grooves symmetrical about the rod axis a, and the locking section 32 is a cylindrical section. The grooves on the plug section 31 reduce the width of the plug section 31, so that a match with the width of the plug groove 21 on the tool 2 is achieved. In order to make the mating section 31 compatible with the mating groove 21 and also to maintain the structural strength of the connecting rod 3, the ratio of the cross-sectional diameter of the locking section 32 to the minimum thickness of the mating section 31 in the direction perpendicular to the rod axis a is: 1.5 to 2. In one embodiment, the locking section 32 has a cross-section of 8 mm in diameter and the plug section 31 has a minimum thickness of 5 mm in a direction perpendicular to the rod axis a.

Referring to fig. 1, 2 and 4, in one embodiment of the present application, the cutterhead 1 is provided with improved cutting efficiency and weed-proof entanglement. The cutter head 1 comprises a columnar main body and an annular edge, a plurality of mounting positions 11 are arranged on the annular edge, and the cutter 2 is connected to the mounting positions 11 through a connecting rod 3. The larger diameter end of the columnar body faces the mounting surface 14, and the drive end connected to the mower driving device is provided at the smaller diameter end of the columnar body. A plurality of reinforcing ribs are arranged on the operation surface 15 of the cutterhead 1 corresponding to the installation position 11 so as to improve the structural strength of the installation position 11.

Referring to fig. 8, in one embodiment of the present application there is also provided a mower comprising: the device body 16 and the cutter head structure 17 are arranged at the bottom of the device body 16, and the cutter head structure 17 is arranged at the bottom of the device body 16. The mower further comprises a universal wheel 18 arranged at the front part and a driving wheel 19 arranged at the rear part, and the cutter head structure is arranged between the universal wheel 18 and the driving wheel 19. When the drive wheel 19 drives the mower to move forwards, the cutter head structure 17 rotates at a high speed, and the cutter 2 on the cutter head structure 17 can cut grass on a travelling area.

In order to facilitate understanding of the technical scheme of the present application, a specific application scenario is given below to describe the technical scheme of the present application in detail.

Application scenario one

After the mower is used for a long time, the cutter on the cutter head is worn or broken, and then the cutter needs to be replaced. Because the cutter head structure is arranged at the bottom of the mower, when the cutter is replaced, the mower needs to be turned over to the bottom upwards, or a protective cover on the mower is opened to expose the cutter head. When the cutter is replaced, the user presses the operating end of the connecting rod by one hand, so that the connecting rod leaves the locking position along the rod axis, the inserting section leaks, the damaged cutter can be easily removed, and a new cutter can be replaced. After the pressing force is removed, the connecting rod returns to the locking position under the action of the spring, and then the connecting rod is rotated to lock the connecting rod. At this time, the locking segment is inserted into the opening of the cutter to lock the cutter to the cutterhead. According to the step, other cutters on the cutter head are replaced, so that a user can complete replacement in a short time, and the cutter head is not easy to be injured.

In summary, in the technical scheme of the embodiment of the application, the connecting rod is forced to move away from the locking position along the rod axis, and the inserting section is exposed, so that the quick assembly and disassembly of the cutter are facilitated. When the cutter is installed, when the inserting section enters the opening, after the acting force is removed, the locking section enters the opening, and the cutter can be quickly locked. And then the connecting rod is rotated to lock the connecting rod, so that the connecting rod is effectively prevented from leaving the locking position along the axis under the action of non-artificial force. The whole process user who dismouting cutter easy operation does not need to use other instruments when dismouting cutter, also is difficult to be injured.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (13)

1. A cutterhead structure, comprising:

A cutterhead;

At least one cutter is detachably arranged on the cutter disc, and each cutter is provided with an opening;

the mounting assembly corresponds to the at least one cutter and comprises a mounting hole and a connecting rod, the mounting hole is formed in the cutter disc, the connecting rod is provided with an inserting section, a locking section and a limiting end cap which are sequentially arranged along the axis of the rod, and the connecting rod is arranged in the mounting hole;

the cutter head structure is provided with a locking state and a disassembling state, under the locking state, a locking section of the connecting rod enters the corresponding opening, and the cutter is limited between the cutter head and the limiting end cap; in the disassembled state, the connecting rod is separated from the corresponding opening through the inserting section.

2. The cutterhead structure of claim 1 wherein the cutter is provided with a socket, the socket communicating with the bore, the socket having a width less than the diameter of the bore.

3. The cutterhead structure of claim 2 wherein the spigot segments mate with the spigot slots and the locking segments mate with the openings.

4. A cutterhead structure according to any one of claims 1 to 3, wherein the connecting rods are movable along a rod axis to switch between the locked and disassembled states;

in the disassembled state, the inserting groove of the cutter can be inserted into the inserting section and move to the inserting section to enter the open hole; after the force disappears, the inserting section is hidden, and the connecting rod is switched to the locking state.

5. The cutterhead structure of claim 1 wherein the cutterhead has a mounting face and an operating face opposite the mounting face, the locking section locking the cutter to one side of the mounting face;

The connecting rod further comprises an operation end arranged along the rod axis, and the operation end and the limiting end cap are respectively positioned at two ends of the connecting rod;

the operation end is positioned at one side of the operation surface.

6. The cutterhead structure of claim 5, further comprising an elastic member having one end abutting the operating end and the other end abutting the cutterhead to provide an elastic force to drive the connecting rod to return along the rod axis.

7. The cutterhead structure of claim 6, wherein a sleeve is disposed in the mounting hole;

A limiting strip extending along the axial direction of the shaft sleeve is arranged on the inner surface of the shaft sleeve;

The position of the shaft sleeve corresponding to the limit bar is provided with a jack, the elastic piece is a spring, and one end of the spring is inserted into the jack.

8. The cutterhead structure of claim 7, wherein the connecting rod is provided with a longitudinal chute; when the connecting rod moves up and down, the limiting strip slides in the longitudinal sliding groove.

9. The cutterhead structure of claim 8, wherein the connecting rod is provided with a transverse chute;

The connecting rod rotates, the limiting strip slides into the transverse chute, and the end part of the limiting strip is abutted with the side wall of the chute so as to limit the connecting rod to act downwards.

10. The cutterhead structure of any of claims 5 to 9 wherein the cutter has a mounting section and a cutting section, the cutting section being located outboard of the cutterhead edge;

the inserting groove and the open hole of the cutter are arranged on the mounting section, the inserting groove extends inwards from the edge of the cutter, and the open hole is positioned at the tail end of the inwards extending inserting groove;

The height of the locking section in the axial direction is greater than the thickness of the tool.

11. The cutterhead structure of claim 1 wherein the spigot section has two grooves symmetrical about the rod axis;

The locking section is a cylindrical section;

The ratio of the cross-sectional diameter of the locking section to the minimum thickness of the plug section in a direction perpendicular to the shaft axis is: 1.5 to 2.

12. The cutterhead structure of claim 1, wherein the cutterhead comprises a columnar body and an annular edge, wherein a plurality of mounting positions are formed on the annular edge, and the cutter is connected to the mounting positions through the connecting rod.

13. A mower, comprising:

A device body and a cutterhead structure according to any one of claims 1 to 12;

the cutter head structure is arranged at the bottom of the equipment body.