Telescopic rod assembly and grass pushing machine

Abstract

The utility model provides a telescopic rod assembly and a grass pushing machine. The telescopic rod assembly comprises a first push rod, a grip and a control panel. Wherein the grip is slidably connected to the first push rod and has a first position and a second position; the control panel is fixed to the grip and comprises a first switch, a second switch, a first triggering element and a second triggering element, the first switch is triggered by the first triggering element in an operable mode, the second switch is triggered by the second triggering element in an operable mode, and when the grip is located at the second position, the second switch is triggered by the second triggering element. Compared with the prior art, the telescopic rod assembly can trigger the first switch through the first trigger element and trigger the second switch through the second trigger element, and mistaken touch is avoided.

Description

Technical Field

[0001] The utility model relates to a telescopic rod assembly and a lawn mower, belonging to the technical field of garden tools. Background Art

[0002] As a repair tool for gardens, lawns and other places, push mowers have been widely used. In the gradual replacement of push mower technology, push mower technology has matured, and how to improve the user experience has become something that must be considered during the replacement of push mowers. Simplifying the user's operating process and reducing the floor space of the push mower are two aspects that need to be optimized.

[0003] On the one hand, the push lawn mower has a control switch at the handle, which is easy for the user to notice and allows the user to stop the push lawn mower at any time during use. On the other hand, the handle of the push lawn mower is set to a retractable state, so that the height of the push lawn mower can be adjusted when used by different users, and the overall volume of the push lawn mower can be reduced when stored.

[0004] However, when the operator is storing the push mower, the push mower may be started by mistake, which may affect the operator.

[0005] In view of this, it is necessary to improve the push lawn mower to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a telescopic rod assembly, which can adjust the state of a switch when adapting to different telescopic states of the telescopic rod, thereby avoiding accidental touch.

[0007] To achieve the above object, the utility model provides a telescopic rod assembly, comprising:

[0008] First putt;

[0009] A handle, the handle being slidably connected to the first push rod and having a first position and a second position;

[0010] A control panel, wherein the control panel is fixed on the handle;

[0011] Wherein, the control panel comprises a first switch and a second switch, a first trigger element and a second trigger element, the first switch is operable to be triggered by the first trigger element, the second switch is operable to be triggered by the second trigger element, and when the handle is located at the second position, the second switch is triggered by the second trigger element. As a further improvement of the present utility model, the handle is at least partially located in the first push rod.

[0012] As a further improvement of the present invention, the axis of the sliding direction of the handle coincides with the longitudinal axis of the first push rod.

[0013] As a further improvement of the present invention, two first push rods are provided and connected via a cross bar. When the handle is located at the second position, the cross bar activates the second trigger element and triggers the second switch.

[0014] As a further improvement of the present invention, the moving track of the second trigger element is located in the plane where the handle and the cross bar are located.

[0015] As a further improvement of the present invention, an abutment portion corresponding to the second trigger element is provided on the cross bar, the abutment portion protrudes toward the second trigger element, and abuts against and activates the second trigger element when the handle is in the second position.

[0016] The utility model also aims to provide a lawn mower, which can adjust the state of the switch when adapting to different telescopic states of the telescopic rod, thereby avoiding accidental touch.

[0017] To achieve the above object, the utility model further provides a push mower, comprising a machine body, a cutting assembly fixed at the bottom of the machine body, a power assembly fixed above the machine body, and a telescopic rod assembly extending obliquely upward from the rear of the machine body, wherein the telescopic rod assembly comprises:

[0018] The first push rods are provided with two and connected by a cross bar;

[0019] A handle, the handle being slidably connected to the first push rod and having a first position and a second position;

[0020] A control panel, wherein the control panel is fixed on the handle;

[0021] A locking switch is fixed on the cross bar and has a first state and a second state. In the first state, the first push rod is engaged with the machine body and remains relatively stationary; in the second state, the first push rod is disengaged from the machine body and can rotate relative to the machine body.

[0022] Wherein, the control panel includes a first switch and a second switch, a first trigger element and a second trigger element, the first switch can be operated to be triggered by the first trigger element, the second switch can be operated to be triggered by the second trigger element, and when the handle is in the second position, the second switch is triggered by the second trigger element.

[0023] As a further improvement of the present utility model, the locking switch includes a folding portion and a base body rotatably connected to the cross bar, and the folding portion is connected to the base body and can rotate relative to the cross bar together.

[0024] As a further improvement of the present invention, the inner cavity of the cross bar and the inner cavity of the first push rod are interconnected, and jointly accommodate a screw assembly fixedly connected to the base, and the telescopic rod assembly is mutually clamped with the body through the screw assembly.

[0025] As a further improvement of the present invention, a limit assembly is provided at one end of the screw rod assembly that passes through the first push rod, and a limit groove is provided on the machine body. When the locking switch is in a first state, the limit assembly is accommodated in the limit groove, and the first push rod and the machine body are engaged with each other; when the locking switch is in a second state, the limit assembly is disengaged from the limit groove, the first push rod is disengaged from the machine body, and can rotate relative to the machine body.

[0026] As a further improvement of the present invention, the telescopic rod assembly further includes a positioning member, and the positioning member and the locking switch are at least partially located at or close to the upper part of the first push rod.

[0027] The beneficial effect of the utility model is that the telescopic rod assembly of the utility model arranges the first trigger element and the second trigger element on the control panel, and the first trigger element triggers the first switch and the second trigger element triggers the second switch, so that when the handle is in the second position, the second switch is triggered by the second trigger element, thereby avoiding accidental touch. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a lawn mower that conforms to the preferred embodiment of the utility model.

[0029] Figure 2 yes Figure 1 A schematic structural diagram of the push lawn mower from another angle is shown.

[0030] Figure 3 yes Figure 1 Exploded view of the telescoping rod assembly.

[0031] Figure 4 yes Figure 3 A partial enlarged view of .

[0032] Figure 5 yes Figure 3 Schematic diagram of the switch structure.

[0033] Figure 6 yes Figure 1 The push lawn mower shown is an exploded view after removing a first push rod, a cross bar and part of the locking switch.

[0034] Figure 7 yes Figure 6 A partial enlarged view of circle a in the middle.

[0035] Figure 8 yes Figure 6 A partial enlarged view of the middle circle b.

[0036] Fig. 9 yes Figure 1 The structural block diagram of the push lawn mower is shown. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] See also Figures 1 to 3 As shown, the utility model discloses a push mower 100, which includes a body 1, a power assembly 2 fixed above the body 1, a cutting assembly 3 fixed at the bottom of the body 1, a telescopic rod assembly 4 extending obliquely upward from the rear of the body 1, and a walking assembly 6 for supporting the push mower 100 to move forward, wherein a control panel 5 is provided on the telescopic rod assembly 4, and the power assembly 2 is configured to be able to obtain the state of the control panel 5, so as to control the start and stop of the cutting assembly 3 under the control of the control panel 5.

[0039] For details, please combine Fig. 9 As shown, the power assembly 2 includes a drive motor 21 and a controller 22, and the controller 22 is configured to control the start and stop of the drive motor 21, and then control the start and stop of the cutting assembly 3. In other words, the controller 22 can obtain the state of the control panel 5 and control the start and stop of the mower 100 accordingly.

[0040] Of course, in this embodiment, the driving motor 21 is a part of the cutting assembly 3, and is used to drive the cutting assembly 3 to operate. For ease of understanding, the description generally describes the driving motor 21 and the controller 22 with the power assembly 2, and the driving motor 21 and the controller 22 should not be mistakenly defined as different structures of the same component. In other embodiments, there is no restriction on the position of the controller 22, and it is only necessary to ensure that it can achieve the same effect.

[0041] The telescopic rod assembly 4 is configured to be telescopic, and includes a support portion 41 connected to the body 1 and a handle 42 detachably connected to the support portion 41. The control panel 5 is fixed to the handle 42 and includes a first trigger element 51 and a second trigger element 52. The support portion 41 includes a first push rod 411 connected to the handle 42. The handle 42 can slide along the first push rod 411. Two first push rods 411 are provided. The cross bar 412 is provided between the two first push rods 411 to fix the first push rod 411. Preferably, the control panel 5 is at least partially located at or near the upper part of the handle 42. Such a configuration is more convenient for the operator to use.

[0042] Specifically, the first push rod 411 is hollow, and the handle 42 includes a gripping portion 422 and a second push rod 421. The second push rod 421 is partially accommodated inside the first push rod 411 and can slide relative to the first push rod 411, so that the handle 42 has a first position (extended position) and a second position (retracted position).

[0043] Preferably, a cable connected to the control panel 5 is accommodated inside the first push rod 411, and the control panel 5 transmits a start signal through the cable.

[0044] Please combine Figure 4 As shown, a positioning groove 4210 is provided on the second push rod 421, and a through positioning hole 4110 is correspondingly provided on the first push rod 411. The positioning groove 4210 and the positioning hole 4110 are aligned with each other, so that the positioning member 7 can simultaneously pass through the positioning hole 4110 and the positioning groove 4210 to fix the second push rod 421 inside the first push rod 411. There are a plurality of positioning grooves 4210 spaced apart from each other, so that the second push rod 421 can be fixed in time when it slides to a desired position relative to the first push rod 411.

[0045] Please combine Figure 5 and Fig. 9 As shown, the control panel 5 includes a first trigger element 51, a second trigger element 52 and a third trigger element 53, and a first switch 511, a second switch 512 and a third switch 513 corresponding to the first trigger element 51, the second trigger element 52 and the third trigger element 53 are arranged inside the control panel 5, the first trigger element 51 is operable to trigger the first switch 511, the second trigger element 52 is operable to trigger the second switch 512, and the third trigger element 53 is operable to trigger the third switch 513, so as to power on the lawn mower 100 through the first switch 511, control the start and stop of the lawn mower 100 through the second switch 512, and control the speed of the drive motor 21 through the signal sent by the third switch 513.

[0046] Preferably, the first switch 511, the second switch 512 and the third switch 513 can be sensors or micro switches, and control the power on of the mower 100 and the start and stop of the cutting component 3 through Bluetooth. Of course, in other embodiments, there is no limitation to this, as long as the same control effect can be achieved.

[0047] In this embodiment, the controller 22 is electrically connected or signal-connected to the first switch 511, the second switch 512, the third switch 513 and the drive motor 21. The controller 22 is configured to start the drive motor 21 only when the start signals of the first switch 511 and the second switch 512 are received in sequence, and then the operation of the cutting assembly 3 is controlled. That is, the first switch 511 sends a first start signal, the second switch 512 sends a second start signal, and the third switch 513 sends a third start signal, and the three start signals are all different. By configuring the controller 22, the mower 100 can be started only when the controller 22 receives the correct start signal sequence, thereby avoiding false touches.

[0048] In this embodiment, the first trigger element 51 and the third trigger element 53 are both press-type trigger elements, and are both located at the top of the control panel 5, so as to facilitate the operator to observe and use. In contrast, based on the use frequency of different trigger elements, the third trigger element 53 is closer to the operator than the first trigger element 51, so as to facilitate the operator's use.

[0049] The second trigger element 52 is a trigger, which extends outward from the control panel 5 and is located in the plane between the grip 42 and the crossbar 412, and can move one end of the trigger toward / away from the grip portion 422. When the trigger is in a free state, one end of the trigger is away from the grip portion 422, and the second trigger element 52 cannot transmit a start signal; when one end of the trigger is pressed to approach the grip portion 422, the second trigger element 52 is triggered, and the second switch 512 is triggered to transmit a start signal.

[0050] In this embodiment, when the handle 42 is in the first position, the second trigger element 52 can be activated and deactivated, and when the handle 42 is in the second position, the second trigger element 52 is activated. That is, when the handle 42 is in the second position, one end of the second trigger element 52 is pressed close to the grip portion 422. Preferably, when the handle 42 is in the second position, the second trigger element 52 is activated by the cross bar 412.

[0051] Specifically, when the handle 42 is in the second position, the cross bar 412 abuts against the second trigger element 52 to push one end of the second trigger element 52 to move toward the grip portion 422 to activate the second trigger element 52 .

[0052] The cross bar 412 is provided with an abutting portion 4121 corresponding to and abutting against the second trigger element 52 . The abutting portion 4121 is used to press the second trigger element 52 so that the second trigger element 52 is always in an activated state.

[0053] See also Figure 6-Figure 8 As shown, in the present embodiment, two abutment portions 4121 are provided and are respectively located on the opposite sides of the cross bar 412, and a locking switch 8 is provided between the two abutment portions 4121. The locking switch 8 includes a folding portion 81 and a base 82 rotatably connected to the cross bar 412, and a through screw assembly 83 is accommodated in the support portion 41. The base 82 is fixedly connected to the screw assembly 83 and can rotate synchronously with the rotation of the folding portion 81.

[0054] Preferably, the screw assembly 83 includes a rod 831 accommodated in the cross bar 412 and a rope 832 connected to the rod 831 and inserted into the first push rod 411, the rod 831 rotates along with the rotation of the locking switch 8, and the rope 832 can rise or fall with the rotation of the rod 831.

[0055] Specifically, the cross bar 412 is provided with a through hole, and the base 82 is correspondingly provided with a fixing column 821. After the fixing column 821 penetrates the through hole, it clamps the screw assembly 83 and is fixedly connected thereto. When the folding portion 81 is pulled, the base 82 rotates around the cross bar 412 and drives the screw assembly 83 to rotate. Of course, in other embodiments, other connection methods can also be used, as long as it is ensured that the screw assembly 83 can rotate synchronously with the locking switch 8, and there is no limitation to this.

[0056] The push mower 100 further includes a grass collecting box 9 , the machine body 1 includes a connecting plate 11 connecting the cutting assembly 3 and the grass collecting box 9 , and the end of the first push rod 411 is rotatably connected to the connecting plate 11 via a pin shaft 10 .

[0057] In this embodiment, a limiting groove 110 facing the first push rod 411 is provided on the connecting plate 11, and a limiting assembly 833 is provided at the end of the rope 832. The limiting assembly 833 cooperates with the limiting groove 110, so that the first push rod 411 is engaged with the connecting plate 11 and cannot rotate.

[0058] Preferably, the limiting assembly 833 includes a limiting member 8331 and an elastic member 8332 sleeved on the outside of the limiting member 8331. When the folding portion 81 is pulled, the base 82 rotates around the cross bar 412 and drives the rod member 831 to rotate, thereby driving the limiting member 8331 to disengage from the clamping connection with the limiting groove 110 and causing the elastic member 8332 to deform. At this time, the telescopic rod assembly 4 can be folded to further reduce the footprint of the mower 100.

[0059] Of course, the pin shaft 10 is located on the travel path of the limiting member 8331 and above the limiting member 8331. When the folding portion 81 is moved until the limiting member 8331 abuts against the pin shaft 10, the folding portion 81 is folded to the maximum. In this way, the moving range of the limiting member 8331 is limited, making it more convenient for practical use.

[0060] The locking switch 8 is used to control the telescopic rod assembly 4 of the mower 100 to rotate along the pin shaft 10, and the positioning member 7 is used to control the longitudinal extension and retraction of the telescopic rod assembly 4 along the first push rod 411 and the second push rod 421. In other words, the locking switch 8 and the positioning member 7 are both control elements for controlling the telescopic rod assembly 4, the positioning member 7 is at least partially located on the upper part of the first push rod 411, and the locking switch 8 is located on the cross bar 412, and is also arranged close to the upper part of the first push rod 411, so that both are arranged close to the operator for easy operation by the operator.

[0061] The moving direction of the mower 100 is defined as a horizontal plane, the tip position of the blade of the cutting assembly 3 and the holding position of the telescopic rod assembly 4 both have projection points on the horizontal plane, and the distance between the two projection points is the use distance. In the use standard of the mower 100, there is a clear provision for the use distance. According to the provision, the standard distance between the two projection points is defined as a safety distance. When the use distance is less than the safety distance, the mower 100 cannot operate.

[0062] When the handle 42 is in the first position, the use distance is greater than the safety distance, and the mower 100 can operate normally; when the handle 42 is in the second position, the use distance is less than the safety distance, and the mower 100 cannot operate. That is, when the handle 42 is in the second position, according to the use regulations, the mower 100 is prohibited from operating. Therefore, in this embodiment, by providing the abutment portion 4121, when the handle 42 is in the second position, the second trigger element 52 is forcibly activated, so that it is impossible to control the start of the mower 100 through the controller 22 without activating the first trigger element 51 in advance. Compared with the prior art of adding an additional safety switch, it is undoubtedly more cost-saving.

[0063] In other words, when the handle 42 is in the first position, the telescopic rod assembly 4 is in an extended state, and the first trigger element 51 and the second trigger element 52 can both switch between an open state and a closed state; when the handle 42 is in the second position, the telescopic rod assembly 4 is in a retracted state, the first trigger element 51 can switch between an open state and a closed state, and the second trigger element 52 is always in an open state. In this way, the anti-accidental touch function of the mower 100 is realized.

[0064] In summary, the telescopic rod assembly 4 and the lawn mower 100 of the utility model are provided with a first trigger element 51 and a second trigger element 52 on the control panel 5, and the first trigger element 51 triggers the first switch and the second trigger element 52 triggers the second switch, so that when the handle 42 is in the second position, the second switch is triggered by the second trigger element 52, thereby avoiding accidental touch.

[0065] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A telescopic rod assembly, characterized in that: include: First putt; A handle, the handle being slidably connected to the first push rod and having a first position and a second position; A control panel, wherein the control panel is fixed on the handle; Wherein, the control panel includes a first switch and a second switch, a first trigger element and a second trigger element, the first switch can be operated to be triggered by the first trigger element, the second switch can be operated to be triggered by the second trigger element, and when the handle is in the second position, the second switch is triggered by the second trigger element.

2. The telescopic rod assembly according to claim 1, characterized in that: The grip is at least partially located within the first putter.

3. The telescopic rod assembly according to claim 2, characterized in that: The axis of the sliding direction of the grip coincides with the longitudinal axis of the first push rod.

4. The telescopic rod assembly according to claim 1, characterized in that: Two first push rods are provided and connected by a cross bar. When the handle is located at the second position, the cross bar activates the second trigger element and triggers the second switch.

5. The telescopic rod assembly according to claim 4, characterized in that: The moving track of the second trigger element is located in the plane where the handle and the cross bar are located.

6. The telescopic rod assembly according to claim 5, characterized in that: The cross bar is provided with an abutment portion corresponding to the second trigger element. The abutment portion protrudes toward the second trigger element and abuts against and activates the second trigger element when the handle is located at the second position.

7. A lawn mower, comprising a machine body, a cutting assembly fixed at the bottom of the machine body, a power assembly fixed above the machine body, and a telescopic rod assembly extending upward from the rear of the machine body, characterized in that: The telescopic rod assembly comprises: The first push rods are provided with two and connected by a cross bar; A handle, the handle being slidably connected to the first push rod and having a first position and a second position; A control panel, wherein the control panel is fixed on the handle; A locking switch is fixed on the cross bar and has a first state and a second state. In the first state, the first push rod is engaged with the machine body and remains relatively stationary; in the second state, the first push rod is disengaged from the machine body and can rotate relative to the machine body. Wherein, the control panel includes a first switch and a second switch, a first trigger element and a second trigger element, the first switch can be operated to be triggered by the first trigger element, the second switch can be operated to be triggered by the second trigger element, and when the handle is in the second position, the second switch is triggered by the second trigger element.

8. The push lawn mower according to claim 7, characterized in that: The locking switch comprises a folding portion and a base body rotatably connected to the cross bar. The folding portion is connected to the base body and can rotate relative to the cross bar together.

9. The push lawn mower according to claim 8, characterized in that: The inner cavity of the cross bar and the inner cavity of the first push rod are interconnected, and jointly accommodate a screw rod assembly fixedly connected to the base body, and the telescopic rod assembly is mutually clamped with the body through the screw rod assembly.

10. The push lawn mower according to claim 9, characterized in that: A limit assembly is provided at one end of the screw assembly that passes through the first push rod, and a limit groove is provided on the machine body. When the locking switch is in a first state, the limit assembly is accommodated in the limit groove, and the first push rod and the machine body are engaged with each other; when the locking switch is in a second state, the limit assembly is disengaged from the limit groove, the first push rod is disengaged from the machine body, and can rotate relative to the machine body.

11. The push lawn mower according to claim 7, characterized in that: The telescopic rod assembly further includes a positioning member, and the positioning member and the locking switch are at least partially located at or close to the upper portion of the first push rod.

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