Mower assembly and mower

Abstract

The utility model relates to a mowing machine assembly and a mowing machine. The utility model provides a mowing machine assembly which is arranged on a cutter head of a mowing machine and comprises a connecting part. The connecting component includes a housing engaged with the cutterhead, a locking member disposed within the housing, and a pin having a second latch portion. The locking component is provided with a first lock catch part. The blade is assembled on the connecting part. The pin is configured to be detachably locked with the first lock catch part of the locking component through the second lock catch part, so that the blade is detachably assembled on the cutter head through the connecting part. According to the embodiment of the utility model, the detachable connection between the pin and the shell is favorably improved, so that the cutter head can be conveniently, quickly and safely detached from the mower.

Description

Technical Field

[0001] The present utility model relates to a lawn mower assembly, and more particularly, to a lawn mower having a lawn mower assembly. Background Art

[0002] A lawn mower or a lawn mowing robot drives a flail blade to rotate by mounting the flail blade on a cutter disk and rotating the cutter disk at a high speed, thereby achieving the purpose of mowing grass. However, when the blade is used for a period of time or is damaged, the mowing effect is not ideal. Therefore, users of lawn mowers or lawn mowing robots often need to replace the blade with a new one. In known lawn mowers or lawn mowing robots, the blade is usually fixed to the cutter disk by bolts. Therefore, the conventional method of replacing the blade is for the user to hold the cutter disk with one hand and use a bolt cutter with the other hand to unscrew the bolt fixing the blade. In this case, if the user's grip on the cutter disk is not strong enough or an accident occurs, it is easy to cause the cutter disk to rotate and the blade to cut the hand holding the cutter disk. This method not only highly depends on auxiliary tools for the disassembly and assembly of the blade, but also poses a great safety hazard to the user.

[0003] In addition, the reliability of the connection mechanism between the cutter disk and the blade of the known lawn mower assembly is low. For example, during the operation of the lawn mower, there is a risk that the blade becomes decoupled from and detaches from the cutter disk due to, for example, rust, insufficiently tightened bolts, and / or wear. Therefore, in addition to the safety hazard during blade replacement described above, parts that detach from the lawn mower assembly during the operation of the lawn mower also pose a risk of injury to personnel. Therefore, a lawn mower assembly with higher reliability and safety is needed. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a lawn mower assembly and a lawn mower to at least partially solve the above problems in the prior art.

[0005] One aspect of the present utility model provides a lawn mower assembly disposed on a cutter disk of a lawn mower, including a connecting member. The connecting member includes a housing engaged with the cutter disk, a locking member disposed within the housing, and a pin having a second locking portion. The locking member has a first locking portion. The blade is assembled on the connecting member. The pin is configured to be detachably locked with the first locking portion of the locking member through the second locking portion, so that the connecting member detachably assembles the blade on the cutter disk.

[0006] Using the embodiments of the present utility model, replacing the conventional bolt connection with the first and second latching portions that can be locked to each other provides a more convenient disassembly method for the user. In addition, by avoiding the use of bolts / threads that are sensitive to rust, installation process, and wear, the embodiments of the present utility model provide high connection reliability. Therefore, the connection components of the present application can advantageously avoid damage to the equipment and personnel caused by the slipping of the cutter head and the blade.

[0007] According to one or more embodiments, the lawn mower assembly may further include an elastic element. The elastic element is disposed within the housing and is located between the first latching portion and the inner surface of the housing. In this way, the elastic element can be used to enhance the locking between the first latching portion and the second latching portion. In addition, when the force applied to the elastic element exceeds a threshold value, the locking between the first latching portion and the second latching portion can be simply released.

[0008] According to one or more embodiments, the connection component may further include a first sleeve. The first sleeve is fixedly connected to the housing and is partially received within the housing. When the first latching portion and the second latching portion are locked, the first sleeve is sleeved on the second end of the pin opposite to the first end, and the first sleeve passes through the blade, so that the blade can rotate about the first sleeve. In this way, the positioning of the pin within the housing can be improved by using the first sleeve, thereby improving the reliability.

[0009] According to one or more embodiments, the pin may further have a flange at the second end opposite to the first end. When the first latching portion and the second latching portion are locked, the flange can abut against one end of the first sleeve that is not received within the housing, thereby restricting the axial displacement of the sleeve along the pin. In this way, no force is directly applied to the surface of the cutter head when the pin is connected to the cutter head through the first sleeve, so that no stress concentration occurs in the surface area of the housing, and thus a highly reliable connection method is provided.

[0010] According to one or more embodiments, the flange of the pin may further have a groove, and when the flange abuts against the first sleeve, one end of the first sleeve that is not received within the housing is inserted into the groove. In this way, foreign objects can be prevented from entering the interior of the housing through the gap between the first sleeve and the pin. Thus, the connection reliability between the first sleeve and the pin is high, it is easy to disassemble, and it is not easily worn during operation.

[0011] According to one or more embodiments, the lawn mower assembly may further include a second sleeve, and the second sleeve is positioned within the housing. When the first latching portion and the second latching portion are locked, the second sleeve can be sleeved on the first end of the pin within the housing, thereby laterally supporting the pin within the housing. In this way, reliable support and positioning are provided for the pin inserted into the housing by using the second sleeve.

[0012] According to one or more embodiments, the pin further has a shoulder, and when the first locking portion is locked with the second locking portion, one end of the second sleeve can abut against the shoulder, thereby restricting the displacement of the pin within the housing. In this way, the second sleeve acts as a stopper in the direction in which the pin is inserted into the housing. Therefore, reliable support and positioning of the pin are provided.

[0013] According to one or more embodiments, the connecting member further includes an additional elastic element disposed within the housing and located between the second sleeve and the inner surface of the housing; the second sleeve defines the longitudinal displacement of the second sleeve and the pin through the additional elastic element, wherein when the first locking portion is locked with the second locking portion, the additional elastic element is deformed. Thus, when the first locking portion and the second locking portion are unlocked, the elastic potential energy stored by the deformed elastic element can be released, thereby ejecting the pin from the housing. Therefore, a more convenient way to remove the pin is provided.

[0014] According to one or more embodiments, when the first locking portion is locked with the second locking portion, the outer wall of the first end of the second sleeve close to the pin abuts against the locking member, and the inner wall of the second sleeve is abutted by the pin, so that the second sleeve at least partially fills the space between the pin and the locking member.

[0015] According to one or more embodiments, the locking member may further include a slider. The slider is accessible from the outside of the housing. The slider is configured to unlock the first locking portion and the second locking portion. In this way, the locking between the first locking portion and the second locking portion can be simply released, thereby providing a convenient disassembly method.

[0016] According to one or more embodiments, the first end of the pin has a chamfer or a rounded corner, which is configured to push the first locking portion when the first end of the pin is inserted into the housing so that the first end can pass through.

[0017] Another aspect of the present utility model further provides a lawn mower. The lawn mower includes a lawn mower assembly and a blade according to one or more of the above embodiments. The lawn mower assembly includes a connecting member having a pin. The blade is rotatably connected to the lawn mower assembly through the pin.

[0018] The various aspects and advantages described above with respect to the lawn mower assembly correspondingly also apply to the lawn mower according to the present utility model, and thus the present utility model will not be elaborated herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following will introduce in detail other advantages and designs of the present utility model with reference to the accompanying drawings, wherein:

[0020] Figure 1 A lawn mower according to an embodiment of the present utility model is shown;

[0021] Figure 2A lawn mower assembly according to an embodiment of the present invention is shown;

[0022] Figure 3A A sectional view of a lawn mower assembly according to the present invention is shown; and

[0023] Figure 3B An exploded view of a connecting component according to the present invention is shown. DETAILED DESCRIPTION

[0024] Unless otherwise indicated, corresponding numbers and symbols in different figures generally refer to corresponding regions. The accompanying drawings are drawn to clearly illustrate the relevant aspects of the embodiments and are not necessarily drawn to scale. The edges of features drawn in the drawings do not necessarily represent the end of the feature range.

[0025] The titles / reference numerals used herein are provided only for ease of reading and therefore do not limit the scope of protection or the scope of the embodiments. The same or similar elements are identified using the same reference numerals.

[0026] It is usually necessary to replace the mower blades every once in a while when using a mower. However, manually disassembling and assembling the mower blades is usually time-consuming, laborious, and has potential safety hazards. In addition, the blades of known mowers lack a reliable connection mechanism, so that the blades may slip during the operation of the mower, which may damage the mower and even cause personal injury. Therefore, the utility model provides a mower assembly with improved reliability and safety and a mower having the mower assembly.

[0027] The mower assembly of the utility model comprises a cutter disc and a mower assembly. The mower assembly is arranged on the cutter disc and comprises a connecting component. The connecting component comprises a housing engaged with the cutter disc, a locking member arranged in the housing and a pin having a second locking portion. The locking member has a first locking portion. The blade is assembled on the connecting component.

[0028] With the lawn mower assembly of the present invention, when it is necessary to replace the pin and the blade that can be connected to the pin, the user can simply apply force to the first locking portion of the locking member and the second locking portion of the pin, and thereby release the lock between the two locking portions. It can be understood that bolts / threads are not necessary for the connection between the pin and the lawn mower assembly of the present invention. In some embodiments, the lawn mower assembly according to the present invention may not have any bolt / threaded parts, and therefore has high reliability and high wear resistance. In addition, the method of fixing by the pin and the locking member is simple to operate, avoiding possible operational errors when conventionally fastened by bolts / threads, thereby further improving the reliability and safety of the lawn mower assembly.

[0029] Below throughFigures 1 to 3B Some non - restrictive embodiments according to the present utility model will be described exemplarily.

[0030] Figure 1 Lawn mower 1000 according to some embodiments of the present utility model is shown. For example, lawn mower 1000 may have a lawn mower assembly 100 and one or more blades 21 assembled to the lawn mower assembly 100. According to non - restrictive embodiments, the lawn mower assembly 100 may be located at the bottom of the body of the lawn mower 1000. However, the scope of the present utility model is not limited thereto. For example, according to embodiments not shown, the lawn mower assembly 100 may be located at the front side, rear side, and / or left and right sides of the body of the lawn mower 1000. Although Figure 1 only lawn mower 1000 having one lawn mower assembly 100 is shown, in other embodiments not shown, the lawn mower 1000 may have multiple lawn mower assemblies 100. The advantages of the lawn mower 1000 according to the present utility model will be specifically described in conjunction with Figures 2 to 3B the lawn mower assembly 100.

[0031] As will be referred to below Figures 2 to 3B As will be described in more detail, the lawn mower assembly 100 according to the embodiments of the present utility model advantageously provides improved reliability and safety.

[0032] Figures 2 to 3B A non - restrictive example of the lawn mower assembly 100 according to the embodiments of the present utility model is specifically shown.

[0033] Figure 2 A perspective view of the lawn mower assembly 100 according to the embodiments of the present utility model is shown. The lawn mower assembly 100 may be disposed on the cutter disc 1 and includes one or more connecting members 20 and the blade 21. The connecting member 20 may have a pin 3, a housing 2, and a locking structure. The pin 3 may be used to rotatably connect the blade 21 to the connecting member 20 and thus to the cutter disc 1. Connecting the blade 21 to the cutter disc 1 by using the connecting member 20 having the pin 3 provides a faster and safer disassembly mechanism compared to using snap - type or screw - fastening connections. In addition, by connecting the blade 21 to the connecting member 20 using the pin 3, the risk of slippage of the connection between the connecting member 20, the cutter disc 1, and the blade 21 during the driving rotation of the lawn mower assembly 100 to perform the mowing operation can be reduced or even avoided.

[0034] Next, with reference to Figure 3A and Figure 3B the lawn mower assembly 100 and the connecting member 20 according to one aspect of the present utility model will be specifically described.

[0035] As Figure 3AAs shown, the mower assembly 100 can be configured to connect the blade 21 to the cutter deck 1. For example, the blade 21 can be configured to be rotatably assembled to the mower assembly 100. According to one or more embodiments, the mower assembly 100 can include a connecting member 20, and the connecting member 20 can have a housing 2, a pin 3, and a locking member 5. The first end of the pin 3, for example, the upper end of the pin 3 according to Figure 3A the orientation shown, can have a second latching portion 31. The first end of the pin 3 can be inserted into the housing 2. The locking member 5 can have a first latching portion 8. As Figure 3A shown, the first latching portion 8 of the locking member 5 and the second latching portion 31 of the pin 3 can be locked to each other.

[0036] The locking member 5 can further have a slider 7, and the connecting member 20 can further have an elastic element 6. For example, the elastic element 6 can be disposed between the locking member 5 and the inner surface of the housing 2. In addition, Figure 3A it is shown that one end of the elastic element 6 is attached to the locking member 5, and the other end of the elastic element 6 is attached to the transverse inner wall of the housing 2. In an example not shown, the elastic element 6 can also be attached to other positions of the inner wall of the housing 2, such as the top of the housing 2. As Figure 3A shown, the slider 7 of the locking member 5 can be accessed from the outside of the housing 2. For example, in some embodiments, the slider 7 can be exposed to the outside of the housing 2. Thus, a force can be applied to the slider 7 from the outside of the housing 2 and displaced. For example, when a force is applied to the slider 7 of the locking member 5 from the outside of the housing 2 in the direction toward the inside of the housing 2, the elastic element 6 can be compressed, and the first latching portion 8 of the locking member 5 can be released from the second latching portion 31 of the pin 3, thereby releasing the lock between the first latching portion 8 and the second latching portion 31. In this way, the pin 3 can be easily removed from the housing 2 of the connecting member 20. It can be understood that when the pin 3 is inserted into the housing 2 and when there is no force applied to the slider 7 in the direction toward the inside of the housing 2, the elastic element 6 is not compressed and thus extends, pushing the first latching portion 8 of the locking member 5 to engage and lock with the second latching portion 31.

[0037] It should be understood that in an embodiment not shown, the setting and positioning of the elastic element 6 can be opposite to that described above. For example, when a force is applied to the slider 7 of the locking member 5 from the outside of the housing 2 in the direction toward the inside of the housing 2, the elastic element 6 can be stretched instead of compressed, and the first latching portion 8 of the locking member 5 can be released from the second latching portion 31 of the pin 3. In addition, when the pin 3 is inserted into the housing 2 and when there is no force applied to the slider 7 in the direction toward the inside of the housing 2, the elastic element 6 is not stretched and thus contracts, causing the first latching portion 8 of the locking member 5 to engage and lock with the second latching portion 31.

[0038] In a non - limiting embodiment, the first end of the pin 3 may have a chamfer or a rounded corner such that when the first end of the pin 3 is inserted into the housing 2, the first locking portion 8 of the locking member 5 can be pushed, thereby reducing the force that needs to be applied at the slider 7.

[0039] In some embodiments, the housing 2 of the connecting member 20 may be positioned at the outer edge of the cutter head 1. Thus, the disassembly operation of the connecting member 20 can be more conveniently performed.

[0040] Figure 3B The connecting member 20 shown may also include a first sleeve 9. As Figure 3A shown, one end of the first sleeve 9 may be fixedly connected to the housing 2 and is partially received in the housing 2. In addition, the pin 3 also has a flange 32 at the second end opposite to the first end inserted into the housing 2. When the first end of the pin 3 is inserted into the housing 2, the flange 32 of the pin 3 removably abuts against the first sleeve 9. As Figure 3A shown, when the first sleeve 9 is fixedly connected to the housing 2 and is partially received in the housing 2, the portion of the first sleeve 9 received in the housing 2 is detachably fixed to the housing 2. For example, in a non - limiting embodiment, the portion of the first sleeve 9 received in the housing 2 may be fixed to the inner wall of the housing 2 by threads. In this way, when the pin is connected to the cutter head through the first sleeve, no force is directly applied to the surface of the cutter head, so that no stress concentration occurs in the surface area of the housing 2, and thus a highly reliable connection method is provided. It can also be understood that the exposed portion of the first sleeve 9 between the flange 32 and the housing 2 can be rotatably connected to the blade 21 for the lawn mower assembly 100.

[0041] According to one or more embodiments, the flange 32 of the pin 3 may have a groove 33. For example, the groove 33 may be provided at the base of the flange 32 and face the first end of the pin 3. When the flange 32 abuts against the first sleeve 9, the end of the first sleeve 9 not received in the housing 2 is inserted into the groove 33. As Figure 3A shown, the inner wall of the first sleeve 9 sleeves the main body portion of the pin 3 and is slidably and closely fitted. Thus, the connection between the first sleeve and the pin has high reliability, is easy to disassemble, and is not easily worn during operation. In addition, in this way, the risk of foreign objects (e.g., cut debris) entering the interior of the connecting member 20 during the operation of the lawn mower 1000 can also be reduced.

[0042] Figure 3A and Figure 3BThe lawn mower assembly 100 shown in the figure may further include a second sleeve 10, and the second sleeve 10 may be positioned within the housing 2. In other words, the second sleeve 10 may be fully received within the housing 2. According to some embodiments, when the pin 3 is inserted into the housing 2, the second sleeve 10 may be configured to sleeve the pin 3 within the housing 2. In this way, when the first locking portion 8 and the second locking portion 31 are locked to each other, the second sleeve 10 provides reliable support and positioning for the pin 3 inserted into the housing 2.

[0043] According to one or more embodiments, the pin 3 may further have a shoulder 34, and one end of the second sleeve 10 is configured to removably abut against the shoulder 34 of the pin 3. In this way, the second sleeve 10 acts as a stopper in the direction in which the pin 3 is inserted into the housing 2. Therefore, reliable support and positioning are provided for the pin 3.

[0044] In some embodiments, the connecting member 20 may further have an additional elastic element 11. The additional elastic element 11 may be disposed between the second sleeve 10 and the housing 2. For example, the additional elastic element 11 may be disposed inside the housing 2. According to some embodiments, when the first locking portion 8 of the locking member 5 is locked with the second locking portion 31, the shoulder 34 of the pin 3 abuts against the second sleeve 10, causing the additional elastic element 11 to deform. For example, the additional elastic element 11 is in a compressed state. Thus, when the first locking portion 8 is released from the second locking portion 31, the pin 3 is no longer locked with the locking member 5. Therefore, the elastic potential energy stored by the compressed additional elastic element 11 can be released, thereby actively ejecting the pin 3 from the housing 2. Therefore, a more convenient way to remove the pin is provided.

[0045] It should also be understood that in embodiments not shown, the arrangement and positioning of the additional elastic element 11 may be opposite to that described above. For example, when the pin 3 is positioned in the housing 2 by the locking member 5, the shoulder 34 of the pin 3 may abut against the second sleeve 10 and stretch rather than compress the additional elastic element 11. Further, when the first locking portion 8 and the second locking portion 31 are released and the shoulder 34 no longer exerts a force on the second sleeve 10, the stretched additional elastic element 11 may contract, thereby ejecting the pin 3 from the housing 2.

[0046] As illustrated in Figure 3A In some embodiments, when the first locking portion 8 of the locking member 5 is locked with the second locking portion 31 of the pin 3, the outer wall of the second sleeve 10 near the first end of the pin 3 may be abutted by the locking member 5, and the inner wall of the second sleeve 10 may be slidably abutted by the pin 3. Thus, the second sleeve 10 can fill the space between the locking member 5 and the pin 3 near the first locking portion 8 of the locking member 5, thereby improving the positioning reliability of the pin 3.

[0047] In a non-limiting embodiment, the hardness of the second sleeve 10, the housing 2, and the blade 21 may be close. In some embodiments, the hardness of the second sleeve 10, the housing 2, and the blade 21 may be the same, for example, in the range between 60 HRC and 65 HRC.

[0048] From the foregoing description and the teachings given in the related drawings, many modifications and other embodiments of the present invention as presented herein will be apparent to those skilled in the art to which the present invention pertains. Accordingly, it is to be understood that the embodiments of the present invention are not limited to the specific embodiments disclosed, and that modifications and other embodiments are intended to be included within the scope of the present invention. In addition, although the foregoing description and the related drawings describe example embodiments in the context of certain example combinations of components and / or functions, it should be appreciated that different combinations of components and / or functions may be provided by alternative embodiments without departing from the scope of the present invention. In this regard, for example, other combinations of components and / or functions different from those explicitly described above are also contemplated as being within the scope of the present invention. Although specific terms are employed herein, they are used in a general and descriptive sense only and not for purposes of limitation.

Claims

1. A lawn mower assembly (100) is provided on the cutter disc (1) of a lawn mower, characterized in that, Comprising: A connecting component (20), comprising: A housing (2), engaged with the cutter head (1); A locking member (5), disposed within the housing (2) and having a first locking portion (8); and A pin (3), having a second locking portion (31); A blade (21), assembled on the connecting component (20); The pin (3) is configured to be detachably locked to the first locking portion (8) of the locking member (5) through the second locking portion (31), so that the connecting component (20) detachably assembles the blade (21) on the cutter head (1).

2. The lawn mower assembly (100) according to claim 1, wherein, The connecting component (20) further comprises: An elastic element (6), disposed within the housing (2) and located between the first locking portion (8) and the inner surface of the housing (2), thereby defining a lateral displacement of the locking member (5) within the housing (2).

3. The lawn mower assembly (100) according to claim 1 or 2, characterized in that, The connecting component (20) further comprises: A first sleeve (9), fixedly connected to the housing (2) and partially received within the housing (2); Wherein the second locking portion (31) is located at the first end of the pin. When the first locking portion (8) is locked to the second locking portion (31), the first sleeve (9) is sleeved on the second end of the pin (3) opposite to the first end, and the first sleeve (9) is configured to extend through the blade (21) such that the blade (21) can rotate about the first sleeve (9).

4. The lawn mower assembly (100) according to claim 3, wherein: The second end of the pin (3) has a flange (32); Wherein when the first locking portion (8) is locked to the second locking portion (31), the flange (32) abuts against an end of the first sleeve (9) not received within the housing (2), thereby defining a longitudinal displacement of the first sleeve (9) along the pin (3).

5. The lawn mower assembly (100) according to claim 4, characterized in that, The flange (32) has a groove (33), and when the flange (32) abuts against the first sleeve (9), an end of the first sleeve (9) not received within the housing (2) is inserted into the groove (33).

6. The lawn mower assembly (100) according to claim 3, characterized in that, The connecting component (20) further comprises: A second sleeve (10), positioned within the housing (2); When the first locking portion (8) is locked to the second locking portion (31), the second sleeve (10) is sleeved on the first end of the pin (3), thereby laterally supporting the pin (3) within the housing (2).

7. The lawn mower assembly (100) according to claim 6, wherein, The pin (3) further has a shoulder (34), and when the first locking portion (8) is locked to the second locking portion (31), one end of the second sleeve (10) abuts against the shoulder (34), thereby restricting a longitudinal displacement of the pin (3) within the housing (2).

8. The lawn mower assembly (100) according to claim 6, characterized in that, The connecting component (20) further comprises: An additional elastic element (11), disposed within the housing (2) and located between the second sleeve (10) and the inner surface of the housing (2); The second sleeve (10) defines the longitudinal displacement of the second sleeve (10) and the pin (3) through the additional elastic element (11), wherein when the first locking portion (8) is locked with the second locking portion (31), the additional elastic element (11) is deformed.

9. The lawn mower assembly (100) according to claim 8, characterized in that, When the first locking portion (8) is locked with the second locking portion (31), the outer wall of the first end of the second sleeve (10) close to the pin (3) abuts against the locking member (5), and the inner wall of the second sleeve (10) abuts against the pin (3), so that the second sleeve (10) at least partially fills the space between the pin (3) and the locking member (5).

10. The lawn mower assembly (100) according to claim 1 or 2, characterized in that, The locking member (5) further includes a slider (7), the slider (7) is accessible from the outside of the housing (2), and the slider (7) is configured to release the locking between the first locking portion (8) and the second locking portion (31).

11. The lawn mower assembly (100) according to claim 1 or 2, characterized in that, The connecting member (20) is positioned at the outer edge of the cutter disc (1).

12. The lawn mower assembly (100) according to claim 3, wherein, The first end of the pin (3) has a chamfer or a fillet, and the chamfer or the fillet is configured to push the first locking portion (8) when the first end of the pin (3) is inserted into the housing (2) so that the first end passes through.

13. A lawn mower (1000), characterized in that, Comprising: A lawn mower assembly (100) according to any one of claims 1 to 12, the lawn mower assembly (100) includes a connecting member (20) having a pin (3) and a blade (21), wherein the blade (21) is rotatably assembled to the lawn mower assembly (100) through the pin (3).

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