Inhibiting device and mower

Abstract

The application provides a prohibition device and a mower, the prohibition device comprises a fixed component and a knob component, the fixed component comprises a fixed seat, an elastic element and a connecting element, the fixed seat is provided with a through groove, the fixed seat is provided with a first groove, a second groove and a third groove; the knob component comprises a handle and a connecting rod extending downward from the bottom of the handle, the handle is provided with a protruding actuating part, the outer side wall of the connecting rod is provided with a protruding part, the connecting rod is configured to pass through the through groove and push the connecting element to compress the elastic element downward and rotate, when the protruding parts are positioned in the first groove, the second groove and the third groove respectively, the knob component is in an starting state, an off state and a release state respectively, and the switching of the prohibition device in different gears is realized.

Description

Technical Field

[0001] This invention relates to a prohibition device and a lawnmower using the prohibition device, belonging to the field of garden tool technology. Background Technology

[0002] A smart lawnmower is a mechanical tool used to trim lawns, vegetation, etc. It can save lawn mowers time and reduce a lot of manpower.

[0003] Smart lawnmowers require a key to start, which puts the mower into different states, such as active, off, and deactivated. These different states operate independently and cannot be switched arbitrarily. However, with existing smart lawnmowers, users cannot clearly feel the key's position change when switching between states, leading to users turning the key to the wrong state.

[0004] In view of this, it is indeed necessary to improve the existing keys in order to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a novel prohibition device to overcome the shortcomings of existing technologies, such as insignificant tactile feedback during key shifting, which can lead to user operational errors.

[0006] To achieve the above objectives, the present invention provides a prohibition device, comprising:

[0007] Fixed components, including

[0008] A fixing base is provided with a through slot, and the fixing base has a first slot, a second slot and a third slot, all of which are connected to the through slot;

[0009] Elastic components;

[0010] A connector located between a fixed base and an elastic element;

[0011] Knob assembly, including

[0012] A handle, the handle having a protruding actuating part; and a connecting rod, the connecting rod extending downward from the bottom of the handle, the connecting rod having a protrusion on its outer side wall;

[0013] The connecting rod is configured to pass through the through slot and push the connector downward to compress the elastic element and rotate it. When the protruding part is positioned in the first slot, the second slot and the third slot respectively, the knob assembly is in the start state, the close state and the release state respectively.

[0014] As a further improvement of the present invention, the first groove and the second groove are both recesses, and the third groove is a through groove that penetrates the fixing seat. When the protrusion is received in the third groove, the knob assembly can be detached from the fixing assembly.

[0015] As a further improvement of the present invention, the second groove is located between the first groove and the third groove.

[0016] As a further improvement of the present invention, the handle is provided with a fixed post extending downward from its bottom, and the connecting rod is sleeved on the outside of the fixed post and fixed to the fixed post by fasteners.

[0017] As a further improvement of the present invention, the fixing post is hexagonal, the connecting rod has an opening for receiving the fixing post, the fixing post has a fixing hole, the connecting rod has a through hole communicating with the fixing hole, and the fastener passes through the through hole and extends into the fixing hole to lock and fix it.

[0018] As a further improvement of the present invention, the toggle part is provided with a magnet, which is used to cooperate with the switch. When the toggle part is in the activated state, the magnet is close to the switch, so that the switch is electrically connected; when the toggle part is in the closed state or the deactivated state, the magnet is away from the switch, so that the switch is disconnected.

[0019] As a further improvement of the present invention, the switch is a reed switch.

[0020] As a further improvement of the present invention, the connector is columnar and includes a first connecting portion and a second connecting portion connected to the first connecting portion. The first connecting portion is provided with a supporting portion protruding toward the through groove to support the connecting rod in the through groove. The second connecting portion is disposed away from the supporting portion. The diameter of the second connecting portion is smaller than the diameter of the first connecting portion. The elastic member is sleeved on the outside of the second connecting portion and supports the first connecting portion.

[0021] As a further improvement of the present invention, the connector further includes a third connecting portion extending outward from the outer edge of the first connecting portion, and the fixing base is provided with a receiving groove for receiving the third connecting portion.

[0022] As a further improvement of the present invention, the elastic element is a spring, which is used to abut against the connector and the connecting rod, so that the protrusion is fixed in the first groove, the second groove or the third groove.

[0023] To achieve the above objectives, the present invention also provides a lawnmower, including a body and a blocking device disposed on the body, the blocking device comprising:

[0024] Fixed components, including

[0025] A fixing base is provided with a through slot, and the fixing base has a first slot, a second slot and a third slot, all of which are connected to the through slot;

[0026] Elastic components;

[0027] A connector located between a fixed base and an elastic element;

[0028] Knob assembly, including

[0029] A handle, the handle having a protruding actuating part; and a connecting rod, the connecting rod extending downward from the bottom of the handle, the connecting rod having a protrusion on its outer side wall;

[0030] The connecting rod is configured to pass through the through slot and push the connector downward to compress the elastic element and rotate it. When the protruding part is positioned in the first slot, the second slot and the third slot respectively, the knob assembly is in the start state, the close state and the release state respectively.

[0031] As a further improvement of the present invention, a switch is provided inside the machine body, and a magnet is provided inside the toggle part. When the toggle part is in the activated state, the magnet approaches the switch, causing the switch to be electrically connected; when the toggle part is in the closed or deactivated state, the magnet moves away from the switch, causing the switch to be disconnected.

[0032] As a further improvement of the present invention, the fixed base is fixedly connected to the body, the first groove and the second groove are both recesses, the third groove is a through groove that passes through the fixed base, and when the protrusion is received in the third groove, the knob assembly can be detached from the fixed assembly.

[0033] As a further improvement of the present invention, the handle is provided with a fixed post extending downward from its bottom, and the connecting rod is sleeved on the outside of the fixed post and fixed to the fixed post by fasteners.

[0034] As a further improvement of the present invention, the fixing post is hexagonal, the connecting rod has an opening for receiving the fixing post, the fixing post has a fixing hole, the connecting rod has a through hole communicating with the fixing hole, and the fastener passes through the through hole and extends into the fixing hole to lock and fix it.

[0035] As a further improvement of the present invention, the connector is columnar and includes a first connecting portion and a second connecting portion connected to the first connecting portion. The first connecting portion is provided with a supporting portion protruding toward the through groove to support the connecting rod in the through groove. The second connecting portion is disposed away from the supporting portion. The diameter of the second connecting portion is smaller than the diameter of the first connecting portion. The elastic member is sleeved on the outside of the second connecting portion and supports the first connecting portion.

[0036] As a further improvement of the present invention, the connector further includes a third connecting portion extending outward from the outer edge of the first connecting portion, and the fixing base is provided with a receiving groove for receiving the third connecting portion.

[0037] As a further improvement of the present invention, the elastic element is a spring, which is used to abut against the connector and the connecting rod, so that the protrusion is fixed in the first groove, the second groove or the third groove.

[0038] The beneficial effects of this invention are as follows: The prohibition device of this invention, by providing a first groove, a second groove, and a third groove on the fixed base, and a protrusion on the outer wall of the connecting rod at the bottom of the handle, allows the connecting rod to pass through the through groove and push the connecting member downward to compress the elastic element, thereby causing the protrusion to slide between the first groove, the second groove, and the third groove, and thus allowing the handle to move between the start, stop, and release states. The elastic element allows the user to perceive the current position of the handle through the elastic deformation of the elastic element, effectively solving the defect in the prior art where the key's indication during gear shifting is not obvious, causing user operation errors. Attached Figure Description

[0039] Figure 1 This is a perspective view of the lawnmower of the present invention.

[0040] Figure 2 yes Figure 1 Partial exploded view.

[0041] Figure 3 yes Figure 2 A diagram showing the combination of prohibited equipment and housing.

[0042] Figure 4 yes Figure 3 The exploded diagram.

[0043] Figure 5 yes Figure 4 A 3D view of the middle casing.

[0044] Figure 6 yes Figure 4 A 3D view of the prohibited equipment.

[0045] Figure 7 yes Figure 6An exploded view of the prohibited device is shown.

[0046] Figure 8 yes Figure 7 A three-dimensional view of the central fixed base.

[0047] Figure 9 yes Figure 8 Another perspective view of the mounting bracket shown.

[0048] Figure 10 yes Figure 7 Another perspective view of the connecting component.

[0049] Figure 11 yes Figure 7 Exploded view of the center knob assembly.

[0050] Figure 12 yes Figure 11 Another perspective of the exploded view. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] like Figure 1 and Figure 2 As shown, this invention discloses a lawnmower 1, including a body and a restraining device 100 mounted on the body. The body, as the main part of the lawnmower 1, mainly includes a housing 200, a drive assembly and a power supply assembly installed inside the housing 200, a mowing assembly installed at the bottom of the housing 200, and a wheel assembly for supporting and driving the housing 200. Since the drive assembly, power supply assembly, mowing assembly, and wheel assembly can all be designed according to existing technical solutions, they are not described in detail here, nor are they considered limiting.

[0053] like Figures 3 to 9 and combined Figure 1 As shown, the blocking device 100 is installed on the housing 200 and is used to control the power on or off of the lawnmower 1, ensuring that the lawnmower 1 can operate in a safe environment. The blocking device 100 includes a fixing component 10 and a knob component 20, wherein the fixing component 10 is installed inside the housing 200, and the knob component 20 is connected to the fixing component 10 and can rotate relative to the fixing component 10 to switch between different gears / positions, so that the lawnmower 1 is in different states.

[0054] The fixing assembly 10 includes a fixing base 11, an elastic element 13, and a connecting member 12 located between the fixing base 11 and the elastic element 13. The fixing base 11 includes a main body 111 and a fixing part 112 connected to the main body 111. The fixing part 112 has a through fixing groove 1120. The housing 200 has a first receiving cavity 201 for receiving the main body 111, a second receiving cavity 202 for receiving the fixing part 112, a third receiving cavity 203 for receiving the elastic element 13 and the connecting member 12, and a fourth receiving cavity 204 corresponding to the fixing groove 1120. The first receiving cavity 201 and the third receiving cavity 203 are interconnected and are both circular. The diameter of the first receiving cavity 201 is larger than the diameter of the third receiving cavity 203.

[0055] A retaining post 205 protrudes from the third receiving cavity 203, and one end of the elastic member 13 is sleeved on the retaining post 205. The fourth receiving cavity 204 is interconnected with the second receiving cavity 202, so that when the fixing component 10 is assembled onto the housing 200, both the connecting member 12 and the elastic member 13 are received in the third receiving cavity 203, and one end of the elastic member 13 is sleeved on the retaining post 205 and abuts against the inner side wall of the housing 200, while the other end abuts against the connecting member 12. The body part 111 of the fixing seat 11 is received in the first receiving cavity 201, and the fixing part 112 is received in the second receiving cavity 202, so that the fourth receiving cavity 204 is aligned with the fixing groove 1120. At this time, the screw 14 can be used to pass through the fixing groove 1120 and lock and fix it to the fourth receiving cavity 204, thereby realizing the fixed connection between the fixing seat 11 and the housing 200.

[0056] like Figure 8 and Figure 9 As shown, the main body 111 is cylindrical and has a through groove 113 at its center. The side of the main body 111 facing the connector 12 has a first groove 114, a second groove 115, and a third groove 116, all of which communicate with the through groove 113. Preferably, the first groove 114 and the second groove 115 are recesses, and the third groove 116 is a through groove penetrating the main body 111. The first groove 114 and the third groove 116 are opposite to each other, and the second groove 115 is located between the first groove 114 and the third groove 116.

[0057] Combination Figure 10As shown, the connector 12 is also columnar, including a first connecting portion 121 and a second connecting portion 122 connected to the first connecting portion 121. The first connecting portion 121 has a supporting portion 123 protruding towards the through groove 113. The second connecting portion 122 is disposed away from the supporting portion 123, and the diameter of the second connecting portion 122 is smaller than the diameter of the first connecting portion 121. Therefore, during assembly, the elastic member 13 can be fitted onto the outside of the second connecting portion 122 and abut against the first connecting portion 121. At this time, the elastic member 13 is fixed on the second connecting portion 122 and the retaining post 205, and can be compressed and released between the second connecting portion 122 and the retaining post 205. Preferably, the elastic member 13 is a spring.

[0058] The connector 12 further includes a third connector 124 extending outward from the outer edge of the first connector 121. The body portion 111 also has a corresponding receiving groove 117 on the side facing the connector 12 to accommodate the third connector 124. After the connector 12 and the fixing base 11 are assembled, the third connector 124 is accommodated in the receiving groove 117. In this embodiment, three third connectors 124 and three receiving grooves 117 are provided, and they are evenly arranged.

[0059] like Figure 11 and Figure 12 and combined Figure 7 As shown, the knob assembly 20 includes a handle 21 and a connecting rod 22 extending downward from the bottom of the handle 21. The handle 21 has a protruding toggle part 211, and the outer side wall of the connecting rod 22 has a protrusion 221. The connecting rod 22 is configured to pass through the through groove 113 and abut against the abutment part 123 in the through groove 113, so as to push the connecting member 12 to compress the elastic member 13 downward and rotate it, so that the protrusion 221 is respectively positioned in the first groove 114, the second groove 115 and the third groove 116, thereby making the knob assembly 20 in the start state, the stop state and the release state respectively.

[0060] The actuating part 211 is configured to move between an activated state, a deactivated state, and a deactivated state. When the actuating part 211 is in the activated state, the protrusion 221 is received in the first groove 114; when the actuating part 211 is in the deactivated state, the protrusion 221 is received in the second groove 115; and when the actuating part 211 is in the deactivated state, the protrusion 221 is received in the third groove 116. The elastic member 13 can be used to abut against the connecting member 12 and the connecting rod 22, so that the protrusion 221 is fixed in the corresponding first groove 114, second groove 115, or third groove 116.

[0061] Specifically, the handle 21 has a fixed post 212 extending downward from its bottom. The connecting rod 22 is columnar and sleeved on the outside of the fixed post 212, and is fixed to the fixed post 212 by fasteners 30. In this embodiment, the fixed post 212 is hexagonal, and the connecting rod 22 has a corresponding opening 222 for receiving the fixed post 212. The opening 222 is also hexagonal, so that when the fixed post 212 is received in the opening 222, the fixed post 212 cannot rotate in the opening 222, thus achieving the positioning between the connecting rod 22 and the handle 21. Therefore, when the handle 21 is rotated, the connecting rod 22 can be driven to rotate synchronously.

[0062] The fixing post 212 has a fixing hole 213, and the connecting rod 22 has a corresponding through hole 223 communicating with the fixing hole 213. The fastener 30 passes through the through hole 223 and extends into the fixing hole 213 to lock and fix it, thereby achieving a fixed connection between the connecting rod 22 and the handle 21. Preferably, the fastener 30 is a screw, the fixing hole 213 is a screw hole, and the through hole 223 is a round hole. Of course, in other embodiments, the fastener 30 can also be a positioning pin, in which case the fixing hole 213 is a positioning hole; or, the fastener 30 and the fixing hole 213 can be other structures that cooperate with each other, as long as they can achieve a fixed connection between the connecting rod 22 and the handle 21, which is not limited here.

[0063] A positioning hole 224 is provided on the side of the connecting rod 22 away from the protrusion 221. Correspondingly, a positioning block 210 is provided at the connection position between the fixing post 212 and the handle 21. Thus, when assembling the connecting rod 22, the positioning block 210 can be used to hold the connecting rod 22 and the handle 21 in the positioning hole 224 to achieve the pre-positioning of the connecting rod 22 and the handle 21. Then, the fastener 30 is used to fix the connecting rod 22 and the handle 21. Not only is the fixing process simpler, but it also ensures that the protrusion 221 and the actuating part 211 are in the same direction. Therefore, when the actuating part 211 is rotated later, the current position of the protrusion 221 can be quickly known, and the current state of the lawnmower 1 can be quickly determined.

[0064] Combination Figure 4As shown, a switch 206 is provided inside the housing 200, and a magnet 214 and a limiting member 215 for limiting and fixing the magnet 214 are provided inside the actuating part 211. The magnet 214 is used to cooperate with the switch 206 to realize the conduction or de-conduction of the switch 206, thereby realizing the power-on or power-off of the lawnmower 1. Specifically, when the actuating part 211 is in the start state, the magnet 214 is close to the switch 206, and the switch 206 is electrically connected; when the actuating part 211 is in the closed or deactivated state, the magnet 214 is away from the switch 206, and the switch 206 is disconnected. Preferably, the switch 206 is a reed switch; of course, the switch 206 can also be a Hall switch, which is not limited here.

[0065] The limiting member 215 has a mating groove 216 that cooperates with the magnet 214. The limiting member 215 also has a snap-fit ​​block 217 that engages with the actuating part 211. The snap-fit ​​block 217 is spring-shaped. The actuating part 211 has a snap-fit ​​groove 218 and a snap-fit ​​hole 219. When installing the magnet 214, the magnet 214 is first snapped into the mating groove 216. Then, the limiting member 215 is pushed into the snap-fit ​​groove 218, causing the snap-fit ​​block 217 to pop out from the snap-fit ​​hole 219. At this time, the limiting member 215 and the actuating part 211 are fixedly connected, and the magnet 214 is also fixed.

[0066] When the blocking device 100 is used, taking the protrusion 221 housed in the first slot 114 as an example, the magnet 214 is close to the switch 206, the switch 206 is turned on, and the lawnmower 1 is powered on. When it is necessary to turn off, first press down on the handle 21, so that the connecting rod 22 pushes the connecting member 12 downward and compresses the elastic member 13. At this time, the third connecting part 124 slides down along the receiving slot 117, and the protrusion 221 disengages from the first slot 114. Then, rotate the handle 21, so that the protrusion 221 slides between the first slot 114 and the second slot 115 until the protrusion 221 slides into the second slot 115. Finally, stop rotating the handle 21 and release the pressure on the handle 21. At this time, the magnet 214 is away from the switch 206 and is in the closed state, the switch 206 is turned off, and the lawnmower 1 is powered off. Similarly, the step of switching the protrusion 221 between the second groove 115 and the third groove 116 is also achieved by pressing the handle 21 and then rotating the handle 21, which will not be described in detail here. Of course, it is also possible to directly rotate the handle 21 in the opposite direction after pressing it, so that the protrusion 221 switches between the first groove 114 and the third groove 116 without going through the second groove 115.

[0067] When the knob assembly 20 rotates in the housing 200, the protrusion 221 moves between the first groove 114, the second groove 115 and the third groove 116. During operation, the protrusion 221 first moves to the plane between two grooves, at which point the elastic element 13 will undergo elastic deformation, and then spring into the next groove to be rotated to. The elastic element 13 is released. During the compression and release of the elastic element 13, the elastic deformation is transmitted to the user's hand, so that the user can clearly see the position of the prohibition device 100. At the same time, the elastic element 13 can also effectively prevent the prohibition device 100 from moving due to vibration when the lawnmower 1 is working.

[0068] Furthermore, it should be noted that since the third groove 116 in this invention is a through groove, when the protrusion 221 is accommodated in the third groove 116, the knob assembly 20 can be removed from the fixing assembly 10, thereby disassembling the knob assembly 20.

[0069] In summary, the prohibition device 100 of the present invention provides a first groove 114, a second groove 115, and a third groove 116 on the fixed base 11, and a protrusion 221 on the outer wall of the connecting rod 22 at the bottom of the handle 21. This allows the connecting rod 22 to pass through the through groove 113 and push the connecting member 12 downwards to compress the elastic member 13 and rotate, causing the protrusion 221 to slide between the first groove 114, the second groove 115, and the third groove 116, thereby moving the handle 21 between the start, stop, and release states. The elastic member 13 allows the user to sense the current position of the handle 21 through its elastic deformation, while also effectively preventing the prohibition device 100 from moving due to vibration when the lawnmower 1 is operating.

[0070] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A prohibition device, installed on the housing (200) of a lawnmower, characterized in that, include: The fixing component (10) includes a fixing base (11), the fixing base (11) having a through groove (113), the fixing base (11) having a first groove (114), a second groove (115) and a third groove (116), the first groove (114), the second groove (115) and the third groove (116) all communicating with the through groove (113), the first groove (114) and the second groove (115) are both grooves, and the third groove (116) is a through groove penetrating the fixing base (11); Elastic element (13); The connector (12) is located between the fixed base (11) and the elastic member (13); A knob assembly (20) is connected to the fixing assembly (10) and is rotatable relative to the fixing assembly (10); the knob assembly (20) includes a handle (21) having a protruding actuating portion (211); and a connecting rod (22) extending downward from the bottom of the handle (21), the connecting rod (22) having a protrusion (221) on its outer side wall, and the protrusion (221) and the actuating portion (211) being in the same direction; The toggle part (211) is provided with a magnet (214), which is used to cooperate with a switch (206) provided in the housing (200). When the toggle part (211) is in the activated state, the magnet (214) is close to the switch (206) to make the switch (206) electrically connected; when the toggle part (211) is in the closed or deactivated state, the magnet (214) is away from the switch (206) to make the switch (206) disconnected. The connector (12) includes a first connecting part (121) and a second connecting part (122) connected to the first connecting part (121). The first connecting part (121) abuts against the connecting rod (22). The elastic member (13) is sleeved on the outside of the second connecting part (122) and abuts against the first connecting part (121). The connecting rod (22) is configured to pass through the through groove (113) and push the connector (12) downward to compress the elastic member (13) and rotate. When the protrusion (221) is positioned in the first groove (114), the second groove (115) and the third groove (116) respectively, the knob assembly (20) is in the start state, the close state and the release state respectively. When the protrusion (221) is received in the third groove (116), the knob assembly (20) can be detached from the fixing assembly (10).

2. The prohibition device according to claim 1, characterized in that: The second groove (115) is located between the first groove (114) and the third groove (116).

3. The prohibition device according to claim 1, characterized in that: The handle (21) is provided with a fixed post (212) extending downward from its bottom, and the connecting rod (22) is sleeved on the outside of the fixed post (212) and fixed to the fixed post (212) by fasteners (30).

4. The prohibition device according to claim 3, characterized in that: The fixing post (212) is hexagonal in shape. The connecting rod (22) has an opening (222) for receiving the fixing post (212). The fixing post (212) has a fixing hole (213). The connecting rod (22) has a through hole (223) communicating with the fixing hole (213). The fastener (30) passes through the through hole (223) and extends into the fixing hole (213) to lock and fix it.

5. The prohibition device according to claim 1, characterized in that: The switch (206) is a reed switch.

6. The prohibition device according to claim 1, characterized in that: The connector (12) is columnar. The first connecting part (121) is provided with a supporting part (123) protruding towards the through groove (113) to support the connecting rod (22) in the through groove (113). The second connecting part (122) is disposed away from the supporting part (123). The diameter of the second connecting part (122) is smaller than the diameter of the first connecting part (121).

7. The prohibition device according to claim 1, characterized in that: The connector (12) also includes a third connector (124) extending outward from the outer edge of the first connector (121), and the fixing base (11) is provided with a receiving groove (117) for receiving the third connector (124).

8. The prohibition device according to claim 1, characterized in that: The elastic element (13) is a spring, which is used to abut against the connector (12) and the connecting rod (22) so that the protrusion (221) is fixed in the first groove (114), the second groove (115) or the third groove (116).

9. A lawnmower, comprising a body and a stopping device (100) disposed on the body, characterized in that, The prohibited device (100) includes: Fixing component (10), including A fixing base (11) is provided with a through groove (113). The fixing base (11) is provided with a first groove (114), a second groove (115) and a third groove (116). The first groove (114), the second groove (115) and the third groove (116) are all connected to the through groove (113). The first groove (114) and the second groove (115) are both grooves. The third groove (116) is a through groove that passes through the fixing base (11). Elastic element (13); The connector (12) is located between the fixed base (11) and the elastic member (13); A knob assembly (20) is connected to the fixing assembly (10) and is rotatable relative to the fixing assembly (10); the knob assembly (20) includes A handle (21) is provided with a protruding actuating part (211); and a connecting rod (22) extends downward from the bottom of the handle (21), with a protrusion (221) on the outer side wall of the connecting rod (22) and the protrusion (221) and the actuating part (211) being in the same direction; a switch (206) is provided inside the machine body, and a magnet (214) is provided inside the actuating part (211). When the actuating part (211) is in the activated state, the magnet (214) approaches the switch (206), making the switch (206) electrically connected; when the actuating part (211) is in the closed state or the deactivated state, the magnet (214) moves away from the switch (206), making the switch (206) disconnected; The connector (12) includes a first connecting part (121) and a second connecting part (122) connected to the first connecting part (121). The first connecting part (121) abuts against the connecting rod (22). The elastic member (13) is sleeved on the outside of the second connecting part (122) and abuts against the first connecting part (121). The connecting rod (22) is configured to pass through the through groove (113) and push the connector (12) downward to compress the elastic member (13) and rotate. When the protrusion (221) is positioned in the first groove (114), the second groove (115) and the third groove (116) respectively, the knob assembly (20) is in the start state, the close state and the release state respectively. When the protrusion (221) is received in the third groove (116), the knob assembly (20) can be detached from the fixing assembly (10).

10. The lawnmower according to claim 9, characterized in that: The mounting base (11) is fixedly connected to the body.

11. The lawnmower according to claim 9, characterized in that: The handle (21) is provided with a fixed post (212) extending downward from its bottom, and the connecting rod (22) is sleeved on the outside of the fixed post (212) and fixed to the fixed post (212) by fasteners (30).

12. The lawnmower according to claim 11, characterized in that: The fixing post (212) is hexagonal in shape. The connecting rod (22) has an opening (222) for receiving the fixing post (212). The fixing post (212) has a fixing hole (213). The connecting rod (22) has a through hole (223) communicating with the fixing hole (213). The fastener (30) passes through the through hole (223) and extends into the fixing hole (213) to lock and fix it.

13. The lawnmower according to claim 9, characterized in that: The connector (12) is columnar. The first connecting part (121) is provided with a supporting part (123) protruding towards the through groove (113) to support the connecting rod (22) in the through groove (113). The second connecting part (122) is disposed away from the supporting part (123). The diameter of the second connecting part (122) is smaller than the diameter of the first connecting part (121).

14. The lawnmower according to claim 9, characterized in that: The connector (12) also includes a third connector (124) extending outward from the outer edge of the first connector (121), and the fixing base (11) is provided with a receiving groove (117) for receiving the third connector (124).

15. The lawnmower according to claim 9, characterized in that: The elastic element (13) is a spring, which is used to abut against the connector (12) and the connecting rod (22) so that the protrusion (221) is fixed in the first groove (114), the second groove (115) or the third groove (116).

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