Telescopic rod structure and lawn mower

Abstract

The invention relates to the technical field of mowing equipment, and particularly discloses a telescopic rod structure and a lawn mower, the mowing equipment comprises an inner rod, an outer rod, a shell, an operation piece, a linkage piece and a switch assembly, the operation piece is installed on the shell, the operation piece is partially exposed out of the shell, and the operation piece has a first operation state and a second operation state; the linkage part is matched with the operation part and used for controlling the operation part to be switched between a first operation state and a second operation state; the telescopic matching state between the inner rod and the outer rod can be known by observing whether the operation piece is in the first operation state or the second operation state, and more convenience and intuition are achieved; in addition, through cooperation of the linkage piece, the switch assembly and the operation piece, the structure is simpler and more reliable, the service life is long, meanwhile, due to the fact that a trigger piece in the switch assembly is triggered through telescopic movement of the inner rod, influences of the operation piece and the linkage piece are avoided, and safety and reliability are higher.

Description

Technical Field

[0001] This application relates to the field of lawn mowing equipment technology, and in particular to a telescopic pole structure and lawn mower. Background Technology

[0002] A lawnmower is a mechanical device used for cutting grass and for landscaping. It can cut grass and weeds in gardens. Typically, a lawnmower consists of a cutter head, engine, wheels, a walking mechanism, blades, a handle, and a control unit.

[0003] To ensure operator safety, lawnmowers are designed with relatively long handles, allowing operators to stay away from the blades during operation. Furthermore, for ease of transport and storage, lawnmower handles are typically designed to be retractable. Additionally, to further ensure operator safety, safety control devices are incorporated into the handles. However, existing lawnmowers, even with the handles fully extended, lack an additional locking mechanism, allowing the machine to still start, which can lead to misoperation and poses a safety hazard.

[0004] In related technologies, the extension and retraction of the brake lever is controlled by pulling and rotating a knob, which switches the non-circular hole and the connecting part on the knob between corresponding and non-corresponding states. This solution is relatively complex because it requires pulling and rotating the knob to control the fit between the non-circular hole and the connecting part, and the operator cannot easily discern the extension and retraction of the brake lever. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a telescopic pole structure and a lawnmower.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A telescopic rod structure includes an inner rod and an outer rod, the inner rod being fitted inside the cavity of the outer rod, and the inner rod being axially telescopic relative to the outer rod. The telescopic rod structure further includes:

[0008] A housing, which is fixedly installed around the outer rod;

[0009] An operating element is mounted on the housing, with a portion of the operating element exposed outside the housing, and the operating element has a first operating state and a second operating state.

[0010] A linkage component, which cooperates with the operating component to control the operating component to switch between a first operating state and a second operating state;

[0011] A switch assembly, wherein the switch assembly is disposed within the housing;

[0012] When the operating component is in the second operating state, the linkage component controls the operating component to approach the outer rod. At this time, the inner rod is in a non-extendable state, and the switch assembly is in a conductive state.

[0013] When the operating component is in the first operating state, the linkage component controls the operating component to move away from the outer rod. At this time, the inner rod is in a retractable state, and the switch assembly is in an open state.

[0014] Furthermore, the operating component includes a pressing part, a limiting part, and a stop part. The limiting part is slidably installed on the inner wall of the housing. The limiting part forms a sliding connection with the inside of the housing parallel to the pressing direction of the pressing part. One end of the pressing part extends to the periphery of the housing, and the other end of the pressing part is fixedly connected to the stop part through the limiting part. The inner rod and the outer rod are respectively provided with a first positioning hole that engages with the stop part.

[0015] Furthermore, the operating component also includes a return spring, which is fitted onto the outer surface of the stop portion.

[0016] Furthermore, the linkage includes a positioning end and a sliding end disposed opposite to each other. The positioning end is mounted on the housing, and the sliding end is rotatable relative to the housing around the positioning end. The sliding end is slidably mounted on the limiting part, and is used to control the operation member to switch between a first operation state and a second operation state.

[0017] Furthermore, the end face of the limiting part is provided with a first limiting groove, a second limiting groove, a third limiting groove, and a fourth limiting groove connected end to end in sequence. When the pressing part is pressed to put the operating member into a first operating state, the sliding end slides along the first limiting groove and the second limiting groove to the third limiting groove and is locked. When the pressing part is pressed again to put the operating member into a second operating state, the sliding end slides from the third limiting groove into the first limiting groove.

[0018] Furthermore, the first limiting groove, the second limiting groove, the third limiting groove, and the fourth limiting groove are arc-shaped groove structures. The first limiting groove and the third limiting groove are arranged opposite to each other, and the second limiting groove and the fourth limiting groove are arranged opposite to each other. The first limiting groove and the third limiting groove are arc-shaped groove structures with the groove opening facing the pressing part, and the second limiting groove and the fourth limiting groove are arc-shaped groove structures with the groove opening facing the linkage member.

[0019] Furthermore, the switch assembly includes a trigger and a safety switch. The safety switch is fixedly installed on the inner wall of the housing, and the trigger cooperates with the safety switch. When the operating member is in the second operating state, the safety switch is in the on state; when the operating member is in the first operating state, the safety switch is in the off state.

[0020] Furthermore, the trigger includes a fixed end, a first abutment end, and a second abutment end arranged in an approximately triangular pattern. The fixed end is rotatably hinged to the inner wall of the housing. The first abutment end and the second abutment end are rotatable relative to the fixed end. The first abutment end is disposed adjacent to one side of the outer rod. The outer rod and the inner rod are respectively provided with second positioning holes for engaging and locking the first abutment end. The second abutment end is disposed adjacent to one side of the safety switch for controlling the on or off state of the safety switch.

[0021] Furthermore, a limiting sleeve is snapped onto the bottom outer surface of the inner rod, and a stop sleeve is snapped onto the top outer surface of the outer rod. The top of the limiting sleeve and the bottom of the stop sleeve cooperate to prevent the inner rod from sliding out of the inner cavity of the outer rod.

[0022] The advantages of the telescopic pole structure provided in this application compared to the prior art are as follows:

[0023] 1. By observing whether the operating component is in the first or second operating state, one can know the extension and retraction coordination between the inner and outer rods, which is more convenient and intuitive.

[0024] 2. By adopting the cooperation between linkage components, switch assemblies and operating components, its structure is simpler and more reliable, and its service life is longer. At the same time, since the trigger in the switch assembly is triggered by the extension and retraction of the inner rod, it is not affected by the operating components and linkage components, making it safer and more reliable.

[0025] Another technical solution adopted in this application is: a lawnmower, the lawnmower including a lawnmower body, the lawnmower also including a telescopic rod structure as described above, wherein the bottom end of the outer rod is fixedly installed on the lawnmower body, and the switch assembly is electrically connected to a controller in the lawnmower body for controlling the start of the mowing motor.

[0026] Through the above technical solution, the lawnmower provided in this application, due to the configuration of the above telescopic pole structure, has the corresponding technical effects of the above telescopic pole structure. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional structural diagram of the lawnmower according to an embodiment of this application;

[0029] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the diagram;

[0030] Figure 3 This is a schematic diagram of the structure in which the inner rod and outer rod cooperate in an embodiment of this application;

[0031] Figure 4 This is a schematic diagram of the mating structure between the limiting sleeve on the inner rod and the stop sleeve on the outer rod in an embodiment of this application.

[0032] Figure 5 This is a schematic diagram showing the installation positions of the operating component, linkage component, and switch assembly inside the housing in the embodiments of this application.

[0033] Figure 6 This is a schematic diagram of the linkage component installed on the operating component in an embodiment of this application;

[0034] Figure 7 This is a schematic diagram of the operating component structure in an embodiment of this application;

[0035] Figure 8 This is a schematic diagram of the switch assembly structure in an embodiment of this application;

[0036] Figure 9 This is a schematic diagram of the sliding trajectory of the sliding end of the linkage component on the limiting part in the embodiment of this application. Detailed Implementation

[0037] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Reference Figure 1 , attached Figure 2 and appendix Figure 4 To be continued Figure 8As shown, this embodiment provides a lawnmower 10, which includes a lawnmower body 100 and a telescopic rod structure 200. The telescopic rod structure 200 includes an inner rod 201, an outer rod 202, a housing, an operating component 204, a linkage component 210, and a switch assembly 209.

[0039] See attached document Figure 1 and attached Figure 2 As shown, outer rods 202 are installed on the left and right sides of the lawnmower body, and the outer rods 202 are installed on the lawnmower body at a certain angle. Specifically, the bottom end of the outer rod 202 is fixedly installed on one side of the lawnmower body, and the inner rod 201 is fitted into the inner cavity of the outer rod 202. The inner rod 201 can extend and retract axially along the inner cavity of the outer rod 202. The inner rod 201 and the outer rod 202 form the handle of the lawnmower, which facilitates the operator to safely operate the lawnmower for weeding.

[0040] See attached document Figure 3 and attached Figure 4 As shown, a stop sleeve 208 is snapped onto the outer edge of the top end of the outer rod 202. Correspondingly, a limit sleeve 207 is snapped onto the outer surface of the bottom end of the inner rod 201. The limit sleeve 207 is positioned below the stop sleeve 208, and the limit sleeve 207 cooperates with the stop sleeve 208. During the process of the inner rod 201 being pulled outward along the inner cavity of the outer rod 202, when the inner rod 201 reaches its maximum extension length, the top end of the limit sleeve 207 located on the outer surface of the bottom end of the inner rod 201 abuts against the bottom end of the stop sleeve 208 at the outer edge of the top end of the outer rod 202, restricting the inner rod 201 from continuing to move outward and preventing the inner rod 201 from falling out of the inner cavity of the outer rod 202 during the outward extension process.

[0041] See attached document Figure 1 and attached Figure 2 As shown, the housing is detachably and fixedly installed at the junction of the outer rod 202 and the inner rod 201, that is, near the outer edge of the top end of the outer rod 202.

[0042] See attached document Figure 1 Appendix Figure 2 and appendix Figure 5 To be continued Figure 7 As shown, the operating element 204 is mounted on the housing, and part of the operating element 204 extends to the outside of the housing, which also facilitates the operator to operate the operating element 204, such as by pressing the operating element 204. The operating element 204 has two operating states, namely the first operating state and the second operating state.

[0043] See attached document Figure 2As shown, the operating member 204 located on the left is in the first operating state, where it is in its original position (not pressed) and its length extending to the outside of the housing 203 is at its maximum. The operating member 204 located on the right is in the second operating state, where it is in the pressed position and its length extending to the outside of the housing 203 is at its minimum.

[0044] See attached document Figure 5 To be continued Figure 8 As shown, the linkage 210 and the switch assembly 209 are both located inside the housing, and the linkage 210 and the switch assembly 209 respectively cooperate with the operating member 204, the inner rod 201, and the outer rod 202. When the operating member 204 is in the second operating state, the linkage 210 controls the operating member 204 to approach the outer rod 202. At this time, the inner rod 201 is in a non-retractable state, and the switch assembly 209 is in a conductive state. When the operating member 204 is in the first operating state, the linkage 210 controls the operating member 204 to move away from the outer rod 202. At this time, the inner rod 201 is in a retractable state, and the switch assembly 209 is in a disconnected state.

[0045] During use, the operator can directly operate the operating component 204 and observe its current state (whether it is in the first or second operating state) to intuitively and quickly understand the telescopic cooperation state between the inner rod 201 and the outer rod 202, making the telescopic rod structure with the above structure more intuitive and convenient to use.

[0046] See attached document Figure 7 As shown, specifically in this embodiment, the operating member 204 includes a pressing part 2042, a limiting part 2041, a stop part 2043, and a return spring 2044. A receiving space for mounting the limiting part 2041 is formed on the inner wall of the housing, and the limiting part 2041 and the receiving space form a sliding connection parallel to the pressing direction of the pressing part 2042. One end of the pressing part 2042 extending into the inner cavity of the housing is fixedly connected to the limiting part 2041, while the other end of the pressing part 2042 extends to the outside of the housing, facilitating the operator's pressing operation.

[0047] Continue to refer to the appendix Figure 7 As shown, one end of the stop portion 2043 is fixedly connected to the limiting portion 2041, while the other end of the stop portion 2043 extends horizontally outward to cooperate with the first positioning holes 205 formed on the inner rod 201 and the outer rod 202, thereby locking the inner rod 201 and the outer rod 202. The return spring 2044 is fitted onto the outer surface of the stop portion 2043 to facilitate the return and reset of the pressing portion 2042.

[0048] In some embodiments, the pressing part 2042, the limiting part 2041 and the stopping part 2043 can be integrally formed, or they can be made separately and then fixedly connected into one piece, which is not limited to this.

[0049] When the operator applies force to the pressing part 2042, the force acting on the pressing part 2042 will be directly transmitted to the limiting part 2041, thereby pushing the limiting part 2041 to slide along the inner wall of the housing. The limiting part 2041 in the sliding state will then synchronously drive the stop part 2043 to move back and forth, so as to be inserted into or pulled out of the first positioning hole 205.

[0050] Combined with reference to the appendix Figure 4 Appendix Figure 5 and appendix Figure 7 As shown, the first positioning hole 205 on the inner rod 201 is located at the bottom end of the inner rod 201, such as on the limiting sleeve 207 at the bottom end of the inner rod 201; while the first positioning hole 205 on the outer rod 202 is located near the top end of the outer rod 202. That is, after the inner rod 201 extends outward along the inner cavity of the outer rod 202, the first positioning hole 205 on the inner rod 201 coincides with the first positioning hole 205 on the outer rod 202. In this way, after the stop part 2043 is inserted into the first positioning hole 205, it can lock the inner rod 201 and the outer rod 202, preventing the inner rod 201 from extending or retracting along the outer rod 202.

[0051] See attached document Figure 5 Appendix Figure 6 and appendix Figure 9 As shown, the linkage 210 cooperates with the operating component 204 to control the switching of the operating component 204 between a first operating state and a second operating state. Through the cooperation between the linkage 210 and the operating component 204, the operating component 204 can automatically switch between the first and second operating states under the pressure of an external force. Furthermore, the aforementioned switching of the operating component 204 relies on the mechanical structure between the operating component 204 and the linkage 210, which is more reliable and has a longer service life.

[0052] For details, please refer to the appendix. Figure 5 Appendix Figure 6 and appendix Figure 9As shown, the linkage 210 includes a positioning end 2102 and a sliding end 2101 disposed at opposite ends. The positioning end 2102 is mounted on the housing, and the sliding end 2101 can rotate relative to the housing around the positioning end 2102. The sliding end 2101 is slidably mounted on the limiting part 2041, and the sliding end 2101 can slide around the positioning end 2102 on the end face of the limiting part 2041 according to a preset trajectory. That is, when the limiting part 2041 slides along the inner wall of the housing, since the positioning end 2102 of the linkage 210 is disposed on the inner wall of the housing, the sliding end 2101 of the linkage 210 can only slide along the end face of the limiting part 2041.

[0053] See attached document Figure 9 The limiting part 2041 has four limiting grooves formed on its end face, namely the first limiting groove a, the second limiting groove b, the third limiting groove c and the fourth limiting groove d. The four limiting grooves are basically designed with an inward concave arc shape so as to accommodate the sliding end 2101 of the linkage 210.

[0054] See attached document Figure 9 As shown, for ease of description, the direction of movement along the horizontal center of the operating member 204 is referred to as the X-axis direction. The first limiting groove a and the third limiting groove c are basically located on the X-axis. The first limiting groove a is located at the right end of the X-axis, that is, near the fixed end 20922 of the linkage member 210, while the third limiting groove c is located at the left end of the X-axis, that is, near the end of the pressing part 2042. The first limiting groove a and the third limiting groove c are arc-shaped groove structures with the groove opening facing inward towards the pressing part 2042. The second limiting groove b is located below the X-axis and below the third limiting groove c. The fourth limiting groove d is located above the X-axis and above the third limiting groove c. The second limiting groove b and the fourth limiting groove d are arc-shaped groove structures with the groove opening facing inward towards the linkage member 210, that is, the groove opening direction of the first limiting groove a and the third limiting groove c is opposite to that of the second limiting groove b and the fourth limiting groove d.

[0055] See attached document Figure 9 As shown, the first limiting groove a, the second limiting groove b, the third limiting groove c, and the fourth limiting groove d are connected end to end in a ring-shaped layout. This design facilitates the sliding end 2101 to move and reset along the limiting grooves. On the one hand, when the sliding end 2101 is in the second limiting groove b, it can then slide along the inclined surface near the third limiting groove c to the third limiting groove c. On the other hand, it facilitates the sliding end 2101 to move from the third limiting groove c along the upper part of the sliding inclined surface to the fourth limiting groove d, and then reset to the first limiting groove a. Through the design of the limiting grooves on the limiting part 2041 and the cooperation of the linkage 210, the switching of the operating part 204 between the first operating state and the second operating state can be conveniently and stably realized.

[0056] See attached document Figure 5and attached Figure 8 As shown, the switch assembly 209 includes a trigger 2092 and a safety switch 2091. The safety switch 2091 is fixedly installed on the inner wall of the housing and is electrically connected to the controller in the lawnmower body for controlling the start of the lawnmower motor, and is used to provide the controller with corresponding action signals.

[0057] See attached document Figure 5 and attached Figure 8 As shown, the trigger 2092 includes a fixed end 20922, a first abutting end 20921, and a second abutting end 20923. The fixed end 20922, the first abutting end 20921, and the second abutting end 20923 are arranged approximately in a triangle. The fixed end 20922 is hinged to the inner wall of the housing, forming a rotatable connection with the inner wall of the housing. The trigger 2092 as a whole can rotate around the fixed end 20922. The first abutting end 20921 is located adjacent to one side of the outer rod 202 and abuts against the outer surface of the outer rod 202. The second abutting end 20923 is located on one side of the safety switch 2091 and is used to control the on / off state of the safety switch 2091. The outer rod 202 and the inner rod 201 are respectively provided with second positioning holes 206 for engaging and locking the first abutting end 20921. The second positioning holes 206 are located on one side of the first positioning hole 205.

[0058] When the inner rod 201 is pulled upward along the inner cavity of the outer rod 202 to its maximum length, the first positioning holes 205 on the inner rod 201 and the outer rod 202 are in a state of overlap, and at the same time, the second positioning holes 206 on each of them are also in a state of overlap. At this time, when the operator presses the pressing part 2042, the pressing part 2042 will drive the limiting part 2041 and the stop part 2043 to move forward, so that the stop part 2043 is inserted into the first positioning hole 205 of the inner rod 201 and the outer rod 202, thereby locking the inner rod 201 and the outer rod 202. At the same time, since the second positioning hole 206 on the inner rod 201 and the outer rod 202 are also in the same state, the first abutting end 20921 in the trigger 2092 will automatically engage in the second positioning hole 206. That is, the first abutting end 20921 will rotate towards the outer rod 202. The first abutting end 20921 enters the second positioning hole 206, so that the trigger 2092 as a whole automatically rotates towards the outer rod 202. Therefore, the second abutting end 20923 does not press the safety switch 2091, and the safety switch 2091 is in the conducting state. At this time, the operator can start the lawnmower through the controller.

[0059] During the process of the operator pressing down on the pressing part 2042, the sliding end 2101 of the linkage 210 moves from the first limiting groove a to the second limiting groove b. When the operator releases the pressing part 2042, due to the force of the return spring 2044, the sliding end 2101 will move from the second limiting groove b to the third limiting groove c, ensuring that the pressing part 2042 will not automatically return to the first limiting groove a under the force of the return spring 2044, thus preventing the pressing part 2042 from accidentally returning to its original position.

[0060] When the inner rod 201 is in a telescopic state, as it slides along the inner cavity of the outer rod 202, the side wall of the inner rod 201 pushes the first contact end 20921 out of the second positioning hole 206 on the inner rod 201. At this time, the first contact end 20921 only extends into the second positioning hole 206 on the outer rod 202. Therefore, the trigger 2092 will rotate around the fixed end 20922 toward the safety switch 2091, so that the second contact end 20923 presses the safety switch 2091. The safety switch 2091 is in the open state. At this time, even if the operator triggers the start button of the lawnmower, the lawnmower cannot work to ensure the safety of the operator.

[0061] In this embodiment, the safety switch 2091 is controlled to be on or off by whether the second contact end 20923 of the trigger 2092 is in contact with or not in contact with the safety switch 2091. The action state of the second contact end 20923 in the trigger 2092 is triggered by the extension and retraction of the inner rod 201 and the outer rod 202, and is not affected by the operating member 204 and the linkage member 210, which makes it safer and more reliable.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A telescopic rod structure comprising an inner rod and an outer rod, the inner rod being housed in an inner cavity of the outer rod, the inner rod being axially telescopically movable relative to the outer rod, characterized in that, The telescopic rod structure also includes: A housing, which is fixedly installed around the outer rod; An operating element is mounted on the housing, with a portion of the operating element exposed outside the housing, and the operating element has a first operating state and a second operating state. A linkage component, which cooperates with the operating component to control the operating component to switch between a first operating state and a second operating state; A switch assembly, wherein the switch assembly is disposed within the housing; When the operating component is in the second operating state, the linkage component controls the operating component to approach the outer rod. At this time, the inner rod is in a non-extendable state, and the switch assembly is in a conductive state. When the operating component is in the first operating state, the linkage component controls the operating component to move away from the outer rod. At this time, the inner rod is in a retractable state, and the switch assembly is in an open state.

2. A telescopic pole structure according to claim 1, characterised in that The operating component includes a pressing part, a limiting part, and a stop part. The limiting part is slidably installed on the inner wall of the housing. The limiting part forms a sliding connection with the inside of the housing parallel to the pressing direction of the pressing part. One end of the pressing part extends to the periphery of the housing, and the other end of the pressing part is fixedly connected to the stop part through the limiting part. The inner rod and the outer rod are respectively provided with a first positioning hole that engages with the stop part.

3. A telescopic pole structure according to claim 2, wherein The operating component also includes a return spring, which is fitted onto the outer surface of the stop portion.

4. A telescopic pole structure according to claim 3, wherein The linkage includes a positioning end and a sliding end arranged opposite to each other. The positioning end is mounted on the housing, and the sliding end can rotate relative to the housing around the positioning end. The sliding end is slidably mounted on the limiting part and is used to control the operation member to switch between a first operation state and a second operation state.

5. A telescopic pole structure according to claim 4, wherein The end face of the limiting part is provided with a first limiting groove, a second limiting groove, a third limiting groove, and a fourth limiting groove connected end to end in sequence. When the pressing part is pressed to put the operating member into a first operating state, the sliding end slides along the first limiting groove and the second limiting groove to the third limiting groove and is locked. When the pressing part is pressed again to put the operating member into a second operating state, the sliding end slides from the third limiting groove into the first limiting groove.

6. A telescopic pole structure according to claim 5, wherein The first limiting groove, the second limiting groove, the third limiting groove, and the fourth limiting groove are arc-shaped groove structures. The first limiting groove and the third limiting groove are arranged opposite to each other, and the second limiting groove and the fourth limiting groove are arranged opposite to each other. The first limiting groove and the third limiting groove are arc-shaped groove structures with the groove opening facing the pressing part, and the second limiting groove and the fourth limiting groove are arc-shaped groove structures with the groove opening facing the linkage member.

7. A telescopic pole structure according to claim 1, wherein The switch assembly includes a trigger and a safety switch. The safety switch is fixedly installed on the inner wall of the housing, and the trigger cooperates with the safety switch. When the operating element is in the second operating state, the safety switch is in the on state; when the operating element is in the first operating state, the safety switch is in the off state.

8. A telescopic pole structure according to claim 7, wherein The trigger includes a fixed end, a first abutment end, and a second abutment end arranged in an approximately triangular shape. The fixed end is rotatably hinged to the inner wall of the housing. The first abutment end and the second abutment end are rotatable relative to the fixed end. The first abutment end is disposed adjacent to one side of the outer rod. The outer rod and the inner rod are respectively provided with second positioning holes for engaging and locking the first abutment end. The second abutment end is disposed adjacent to one side of the safety switch for controlling the on or off state of the safety switch.

9. A telescopic pole structure according to claim 1, wherein A limiting sleeve is snapped onto the bottom outer surface of the inner rod, and a stop sleeve is snapped onto the top outer surface of the outer rod. The top of the limiting sleeve and the bottom of the stop sleeve cooperate to prevent the inner rod from sliding out of the inner cavity of the outer rod.

10. A lawnmower, the lawnmower comprising a lawnmower body, characterized in that, The lawnmower also includes a telescopic rod structure as described in any one of claims 1 to 9, wherein the bottom end of the outer rod is fixedly installed on the lawnmower body, and the switch assembly is electrically connected to a controller in the lawnmower body for controlling the start of the mowing motor.

Images