Lawn mower

Abstract

A lawn mower, comprising a frame, a movement mechanism (200) and a control mechanism (100); the movement mechanism (200) is arranged on the frame, and the movement mechanism (200) drives the lawn mower to move; the control mechanism (100) is arranged on the frame, and the control mechanism (100) controls the movement mechanism (200); the control mechanism (100) comprises a detection device (110), and the detection device (110) is used for detecting whether the control mechanism (100) is held by an operator. The resistance of a return spring when an operator releases a parking state is eliminated, such that the operating difficulty is greatly reduced for drivers, and fatigue caused by overcoming the resistance of the return spring is reduced; the lawn mower enters the parking state and shuts down more promptly, improving safety of the apparatus and safety for people.

Description

A mower

[0001] The present application claims priority to the patent application with the application date of 2024.06.21, the application number of 202421421571.8, and the invention name of "A mower". TECHNICAL FIELD

[0002] The utility model relates to the field of mower, specifically to a mower. BACKGROUND

[0003] The mower is a garden tool for trimming lawns, vegetation, etc. After the mower is turned on, the operating lever of the mower must be in the parking state, and the parking state must be released when the mower needs to run. When the traditional mower releases the parking state, the resistance of the return spring in the operating mechanism needs to be overcome. The driver always overcomes the mechanical structure's return torque during use, which can increase the driver's hand fatigue over a long period of operation.

[0004] SUMMARY

[0005] In view of the above shortcomings of the prior art, the utility model provides a mower to improve the technical problem that the existing mower needs to always overcome the mechanical structure's return torque when releasing the parking state, which can easily increase the driver's hand fatigue.

[0006] To achieve the above object and other related objects, the utility model provides a mower, which comprises a frame, a walking mechanism and an operating mechanism. The walking mechanism is arranged on the frame, and the walking mechanism drives the mower to move. The operating mechanism is arranged on the frame, and the operating mechanism controls the walking mechanism. The operating mechanism comprises a detection device for detecting whether the operating mechanism is held by an operator.

[0007] In an example embodiment of the present application, the operating mechanism comprises an operating lever, and the detection device is arranged on the operating lever.

[0008] In an example embodiment of the present application, the operating mechanism comprises two operating levers, and the detection device is arranged on each of the two operating levers.

[0009] In an example embodiment of the present application, when any of the detection devices detects that the operating lever is not held by the operator, the mower enters the parking state.

[0010] In an example embodiment of the present application, the detection device comprises a detection sensor.

[0011] In an example embodiment of the present application, the detection sensor is one or more of a torque sensor, a capacitive sensor, a voltage sensor, a pressure sensor, an optical sensor, an ultrasonic sensor, a temperature sensor and a biometric sensor.

[0012] In an example embodiment of the present application, an insulating layer is arranged on the outer periphery of the operating rod, and the detection device is arranged on the side of the insulating layer away from the operating rod.

[0013] In an example embodiment of the present application, a covering layer is arranged on the operating rod, and the detection device is arranged between the covering layer and the operating rod, or the detection device is embedded in the covering layer.

[0014] In an example embodiment of the present application, the detection device comprises a detection controller, the detection controller is signal-connected with the detection sensor, and the detection sensor is signal-connected with the whole vehicle controller of the mower.

[0015] In an example embodiment of the present application, the operating rod comprises a transverse rod and a longitudinal rod connected with the transverse rod, and the detection sensor is arranged on both the transverse rod and the longitudinal rod.

[0016] In combination with the prior art, the present application has the following beneficial effects:

[0017] In the operation process of the existing mower, the return torque of the mechanical structure needs to be overcome all the time to ensure that the mower is in a non-parking state, and long-time use increases the fatigue of the hands of the operator. The operating mechanism of the mower of the present application comprises a detection device, the detection device is used for detecting whether the operating mechanism is held by the operator, when the operator holds, the mower is released from the parking state, thereby eliminating the resistance of the return spring when the operator releases the parking state, greatly reducing the operation difficulty of the driver, and reducing the fatigue caused by overcoming the resistance of the return spring. When the detection device detects that the operator does not hold, the mower enters the parking state. Compared with the existing mower which needs to return the operating mechanism to enter the parking state, the mower of the present application enters the parking state and stops more timely, and the safety of the equipment and the personnel is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0019] Fig. 1 is a schematic view of an example saddle-type mower of the present application;

[0020] Fig. 2 is a schematic view of an example standing-type mower of the present application;

[0021] Fig. 3 is a schematic view of part of an example mower of the present application;

[0022] Fig. 4 is a schematic diagram of an example joystick of the present application;

[0023] Fig. 5 is a schematic diagram of another example joystick of the present application;

[0024] Fig. 6 is a schematic diagram of a cross-sectional view of Fig. 4 along line A-A;

[0025] Fig. 7 is a schematic diagram of an example detection sensor signal connection of the present application.

[0026] Element No. Description 100, operating mechanism; 110, detection device; 111, detection sensor; 120, joystick; 121, transverse rod; 122, longitudinal rod; 123, insulation layer; 124, cover layer; 200, traveling mechanism; 300, header assembly. DETAILED DESCRIPTION

[0027] The above and other advantages and effects of the present application will become readily apparent to those of ordinary skill in the art from the following description thereof, taken in conjunction with the accompanying drawings. The present application can be carried out by means of the methods and devices specifically described herein, and it will be apparent to those skilled in the art that the present application can be carried out by equivalents and / or modifications without departing the spirit and scope of the present application. Embodiments and features described in the specification can be combined with each other unless they conflict. It is to be understood that the terminology used herein is for the purpose of describing the particular embodiments only and is not intended to limit the scope of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art in the field of the present application. Any methods and materials similar or equivalent to those described herein can be used in the practice of the present application.

[0028] When a numerical range is given in the embodiments, it is understood that, unless otherwise specified by the present application, each numerical range has two endpoints and any number between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art in the field of the present application. Any methods and materials similar or equivalent to those described herein can be used in the practice of the present application.

[0029] It should be noted that the terms such as "upper", "lower", "left", "right", "middle", and "one" used in the specification are only for the convenience of description and are not intended to limit the scope of the present application. Changes or adjustments of the relative relationship without substantial changes in the technical content are also considered as the scope of the present application.

[0030] The mower needs to be in the un-parking state when driving. In the traditional mower, the un-parking state needs to overcome the resistance of the return spring in the control mechanism, and long-term use can easily increase the fatigue of the driver's hands.

[0031] Referring to FIGS. 1-7, in view of this, the present application provides a mower, which comprises a frame, a walking mechanism 200 and a control mechanism 100. The frame provides support for part of the components of the mower, and the walking mechanism 200 is arranged on the frame and drives the mower to move. In an embodiment of the present application, the walking mechanism 200 comprises a driving wheel and a walking wheel, and the control mechanism 100 controls the driving wheel to realize the parking and walking of the mower. The control mechanism 100 is arranged on the frame, and the control mechanism 100 controls the walking mechanism 200. The control mechanism 100 comprises a detection device 110 for detecting whether the control mechanism 100 is held by an operator. When the detection device 110 detects that the control mechanism 100 is held by the operator, the parking state of the mower is released, so that the operator can control the driving state of the mower, and the control mechanism 100 does not have the resistance of the return spring, thereby reducing the fatigue of the operator. When the detection device 110 detects that the control mechanism 100 is not held by the operator, the parking state is entered, and the power of the mower is cut off. The existing mower needs to return the control mechanism to enter the parking state, and the shutdown speed is slow. The present application can quickly cut off the power of the mower, and the shutdown is more timely, thereby improving the safety of the equipment and the personnel. Referring to FIGS. 1 and 2, in an embodiment of the present application, the mower comprises a cutting deck assembly 300 for mowing the lawn. The cutting deck assembly 300 comprises a cutter, a cutter motor and the like. The cutter motor drives the cutter to rotate to realize the mowing of the lawn.

[0032] In an embodiment of the mower, the control mechanism 100 comprises a control lever 120, which facilitates the operator to hold and operate. The detection device 110 is arranged on the control lever 120, which can more directly detect whether the operator holds and operates the control mechanism, thereby facilitating the control of whether the mower enters the parking state.

[0033] In an embodiment of the present application, the operator holding the control mechanism 100 can be that the operator grips the control mechanism 100, or that the operator touches the control mechanism 100 with fingers or limbs, or that the operator directly or indirectly applies a force to the control mechanism 100.

[0034] Please refer to Figure 1 and Figure 2, in a lawn mower embodiment, the operating mechanism 100 includes two operating rods 120, the two operating rods 120 are respectively left operating rod 120 and right operating rod 120, the two operating rods 120 are convenient for the operator to hold with left and right hands respectively, and the two operating rods 120 control the rotating speed of left and right two traveling wheels respectively, so as to realize the advancing, retreating, turning and other actions of the lawn mower. The detection device 110 is arranged on the two operating rods 120 respectively, so as to detect whether the operator holds the two operating rods 120 respectively.

[0035] Please refer to Figure 5, in a lawn mower embodiment, the operating rod 120 includes a transverse rod 121 and a longitudinal rod 122 connected with the transverse rod 121, by arranging the transverse rod 121 and the longitudinal rod 122, it is convenient for the operator with different operation habits to control the lawn mower, for example, some operators are used to holding the transverse rod 121, and some operators are used to holding the longitudinal rod 122. The detection sensor 111 is arranged on the transverse rod 121 and the longitudinal rod 122, so that when the operator holds the transverse rod 121 and the longitudinal rod 122, detection can be carried out, the accuracy of detecting the operator holding the operating rod 120 is improved, and the different use habits of the operator are met.

[0036] In a lawn mower embodiment, when any detection device 110 detects that the operator does not hold the operating mechanism 100, it is judged that the operator is not in place, and the lawn mower enters the parking state; when the detection devices 110 on the left and right two operating rods 120 all detect that the operator holds the operating mechanism 100, it is judged that the operator is in place, and the lawn mower is released from the parking state. The left and right two operating rods 120 control the rotating speed of the left and right traveling wheels respectively, when one of the operating rods 120 is not held by the operator, if the lawn mower is not in the parking state, it is easy to appear the situation that one traveling wheel rotates, and danger is easy to occur. By detecting whether the operator holds the left and right two operating rods 120 through the detection devices 110 on the left and right two operating rods 120 respectively, the situation that the operator accidentally touches the detection device 110 to cause the lawn mower to be mistakenly released from the parking state can be reduced, the risk of misoperation is reduced, and the safety of the lawn mower is improved. When any one of the left and right two operating rods 120 is not held by the operator, the lawn mower of the present application enters or maintains the parking state, so as to protect the safety of the equipment and the operator.

[0037] In a lawn mower embodiment, the detection device 110 includes a detection sensor 111, which is used to detect whether the operator holds the operating mechanism 100. The detection sensor 111 can be one or more of a torque sensor, a capacitive sensor, a voltage sensor, a pressure sensor, an optical sensor, an ultrasonic sensor, a temperature sensor and a biometric sensor, so as to facilitate detection of whether the operator holds the operating mechanism 100.

[0038] In an embodiment of the lawn mower, the detection sensor 111 is a torque sensor, which is installed on the rotating shaft of the operating lever 120. The torque sensor detects the torque applied by the operator on the operating lever 120 to determine whether the operator holds the operating lever 120. When the torque applied by the operator is detected, it is determined that the operator holds the operating lever 120, and the lawn mower is released from the parking state; when the torque applied by the operator is not detected, it is determined that the operator does not hold the operating lever 120, and the lawn mower enters the parking state.

[0039] In an embodiment of the lawn mower, the detection sensor 111 is a capacitive sensor, which is arranged on the surface of the operating lever 120. The fixing mode of the capacitive sensor on the operating lever 120 includes but is not limited to wrapping, embedding and gluing. The capacitive sensor can detect the presence of the operator's hand or other parts of the body. When the operator contacts the operating lever 120, the capacitance value changes, and the controller monitors the change of the capacitance value to determine whether the operator holds the operating lever 120, thereby controlling the lawn mower to enter or release the parking state.

[0040] In an embodiment of the lawn mower, the capacitive sensor is wrapped or wound on the operating lever 120, that is, the outer circumferential surface of at least part of the length of the operating lever 120 is provided with the capacitive sensor, so as to more conveniently detect whether the operator holds the operating lever 120, and meet the operation habits of different operators. For example, some operators are used to contacting the palm part of the hand with the rear side of the operating lever 120 when pushing the operating lever 120 forward, and contacting the finger part of the hand with the front side of the operating lever 120 when pulling the operating lever 120 backward; some operators are used to always holding the operating lever 120 with the hand.

[0041] In an embodiment of the lawn mower, the detection sensor 111 is an optical sensor, which is installed on the operating lever 120 to detect the position and movement of the operator's hand by reflecting light. The optical sensor can accurately determine whether the operator holds the operating lever 120.

[0042] In an embodiment of the lawn mower, the detection sensor 111 is a pressure sensor, which is installed on the surface of the operating lever 120 to detect the pressure borne by the pressure sensor. When the detected pressure borne by the pressure sensor is lower than a preset threshold interval, it is determined that the operator does not hold the operating lever 120; when the detected pressure borne by the pressure sensor is within the preset threshold interval, it is determined that the operator holds the operating lever 120, and the parking state is released.

[0043] In an embodiment of the lawn mower, the detection sensor 111 is a biometric sensor, such as a fingerprint sensor, a heart rate sensor, etc., so as to determine whether the operator holds the operating lever 120.

[0044] In an embodiment of the mower, the detection device 110 detects at least two regions on the handlebar 120 to prevent the operator from releasing the parking state by mistake, such as detecting at least the front side and the rear side of the handlebar 120, the upper side and the lower side of the handlebar 120, and the like. In another embodiment, the detection range of the detection device 110 is located on the front side of the handlebar 120, i.e., the side of the handlebar 120 located in front of the front end of the mower in the forward direction, and the operator is located on the rear side of the handlebar 120 when operating the mower. By arranging the detection device 110 on the front side of the handlebar 120, the risk of the operator touching the detection device 110 by mistake can be reduced, and the safety of the mower can be improved. In another embodiment of the present application, the detection range of the detection device 110 is the outer circumferential surface of at least part of the length of the handlebar 120, so that the operator can be detected in different holding states, such as gripping, finger touching, palm touching, or body touching, to meet the operation habits of more operators.

[0045] In an embodiment of the mower, the detection range of the detection device 110 is 175mm-275mm on the transverse rod 121 extending from the end to the longitudinal rod 122. For example, the capacitive sensor is arranged to extend from the end of the transverse rod 121 to the longitudinal rod 122, and the total length is 175mm-275mm. The total length can be any value between 175mm and 275mm, such as 175mm, 190mm, 225mm, 275mm, and the like, which can meet the detection needs of the operator holding. Further, the total length of the capacitive sensor is 200mm-250mm, which can be any value between 200mm and 250mm, such as 200mm, 225mm, 250mm, and the like, to more accurately detect the holding of the operator. The capacitive sensor is arranged starting from the end of the transverse rod 121 away from the longitudinal rod 122, which facilitates some operators to hold the left and right transverse rods 121 with one hand in special situations to control the movement of the mower, and the detection device 110 can detect that the left and right transverse rods 121 are both held by the operator, so that the mower remains in the release state.

[0046] Further, the detection region of the detection device 110 on the longitudinal rod 122 is 140-240 mm long. For example, a capacitive sensor is arranged on the longitudinal rod 122, and the capacitive sensor is arranged to be 140-240 mm long, for example, 140 mm, 190 mm, 240 mm, etc., to ensure that the holding state of the operator holding the longitudinal rod 122 is detected. Further, the capacitive sensor is arranged away from the transverse rod 121 from the joint of the longitudinal rod 122 and the transverse rod 121, and the length is preferably 165-215 mm, for example, 165 mm, 190 mm, 192 mm, 240 mm, etc., to improve the accuracy of the detection of the holding state of the operator.

[0047] In an embodiment of the lawn mower, an insulating layer 123 is arranged on the outer periphery of the operating rod 120, and the detection device 110 is arranged on the side of the insulating layer 123 away from the operating rod 120. On the one hand, the insulating layer 123 can avoid the influence of the metal operating rod 120 on the detection of the detection device 110. On the other hand, the insulating layer 123 can protect the detection device 110 to a certain extent. When the lawn mower is in use, it may be jolted or vibrated, etc. The detection device 110 is prevented from directly colliding with the operating rod 120, and the detection device 110 is prevented from being damaged. The insulating layer 123 is preferably made of rubber, plastic, etc. It has an insulating effect and can provide a certain buffer protection for the detection device 110.

[0048] Please refer to FIG. 6. In an embodiment of the lawn mower, a covering layer 124 is arranged on the operating rod 120, and the detection device 110 is arranged between the covering layer 124 and the operating rod 120 or embedded in the covering layer 124. The covering layer 124 is preferably made of rubber, plastic, etc. It can improve the comfort of the operator holding it. Further, the surface of the covering layer 124 is treated to be slip-resistant, for example, by arranging slip-resistant particles, slip-resistant patterns, adding a slip-resistant layer, etc. For example, when the detection device 110 is a pressure sensor, the detection device 110 can be arranged between the covering layer 124 and the operating rod 120 or embedded in the covering layer 124. For example, when the detection device 110 is an optical sensor or a capacitive sensor, the detection device 110 is embedded in the covering layer 124 and installed on the operating rod 120 to facilitate the detection of whether the operator is holding it. It should be noted that in this embodiment, the detection device 110 is not a torque sensor. When the detection device 110 is a torque sensor, the detection device 110 needs to be installed on the rotating shaft of the operating rod 120.

[0049] Please refer to Fig. 7, in an embodiment of the present application, the detection device 110 comprises a detection controller, the detection controller is in signal connection with the detection sensor 111, and the detection sensor 111 is in signal connection with the vehicle controller. The detection controller receives and processes the signal of the detection sensor 111, and converts the signal of the detection sensor 111 into a CAN signal and sends it to the vehicle controller. The vehicle controller controls the walking and logic of the whole vehicle. After receiving the CAN signal sent by the detection controller, the vehicle controller controls the lawn mower to exit or enter the parking state.

[0050] The lawn mower of the present application can be a riding type lawn mower as shown in Fig. 1, or a standing type lawn mower as shown in Fig. 2. The lawn mower of the present application also comprises a machine shell and other components. Please refer to the existing lawn mower, and the present application will not be repeated here.

[0051] The utility model discloses a kind of lawn mowers, eliminate the resistance of return spring when operating personnel releases parking state, greatly reduce the operation difficulty of driver, alleviate the tired feeling because of overcoming return spring resistance.When detection device detects that operating personnel does not hold, then the lawn mower enters parking state, enters parking state, stops machine in time, improve the safety of equipment and personnel.So, the utility model effectively overcomes some practical problems in the prior art thereby has very high utilization value and use significance.The above embodiment is only illustrative of the principle of the utility model and its efficacy, and is not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A lawnmower, characterized in that, include: frame; A walking mechanism is mounted on the frame, and the walking mechanism drives the lawnmower to move; An operating mechanism is provided on the frame, the operating mechanism controls the walking mechanism, and the operating mechanism includes a detection device for detecting whether the operating mechanism is being held by an operator.

2. The lawnmower according to claim 1, characterized in that, The control mechanism includes a joystick, and the detection device is disposed on the joystick.

3. The lawnmower according to claim 2, characterized in that, The control mechanism includes two joysticks, and the detection device is provided on each of the two joysticks.

4. The lawnmower according to claim 3, characterized in that, When any of the detection devices detects that the operator is not holding the mower, the mower enters a parking state.

5. The lawnmower according to claim 2, characterized in that, The detection device includes a detection sensor.

6. The lawnmower according to claim 5, characterized in that, The detection sensor is one or more of the following: torque sensor, capacitance sensor, voltage sensor, pressure sensor, optical sensor, ultrasonic sensor, temperature sensor, and biometric sensor.

7. The lawnmower according to claim 5, characterized in that, An insulating layer is provided on the outer periphery of the control stick, and the detection device is located on the side of the insulating layer away from the control stick.

8. The lawnmower according to claim 7, characterized in that, The joystick is covered with a cover layer, and the detection device is disposed between the cover layer and the joystick, or the detection device is embedded in the cover layer.

9. The lawnmower according to claim 5, characterized in that, The detection device includes a detection controller, which is signal-connected to the detection sensor, and the detection sensor is signal-connected to the lawnmower vehicle controller.

10. The lawnmower according to claim 5, characterized in that, The joystick includes a horizontal bar and a vertical bar connected to the horizontal bar, and the detection sensor is provided on both the horizontal bar and the vertical bar.

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