Push mower

Abstract

The utility model provides a grass pushing machine which comprises a machine body, a walking assembly, an adapter and a locking device. The walking assembly comprises a first walking wheel and a second walking wheel which are arranged front and back in the advancing direction of the grass pushing machine. The adapter is connected with the machine body and the first walking wheel, the first walking wheel is connected to the adapter, and the adapter is pivotally connected with the machine body; the locking device is configured to be capable of locking the adapter, so that the first walking wheel advances along a fixed direction relative to the machine body; the locking device has a first state and a second state, in the first state, the machine body is movably connected with the adapter, and the adapter rotates relative to the machine body; and in the second state, the machine body is clamped with the adapter, so that the first walking wheel moves in the fixed direction relative to the machine body. Compared with the prior art, the lawn mower can be freely switched between turning and straight moving, the control force on the first walking wheel is increased, and the first walking wheel is prevented from deviating from a preset path due to random steering.

Description

TECHNICAL FIELD

[0001] The utility model relates to a grass pushing machine belongs to garden technical field. BACKGROUND

[0002] The grass pushing machine is used as the repair tool of garden, lawn and the like ground, has been widely used. In the gradual replacement of grass pushing machine technology, the grass pushing technology has been mature, and how to improve the use experience of user becomes the thing that must be considered in the replacement process of grass pushing machine.

[0003] But the existing grass pushing machine, in order to guarantee the stability in the process of turning, usually limit the amplitude of turning, this will undoubtedly produce inconvenience when using. And in order to solve this problem, the most commonly used way is to use universal wheel to replace the conventional front wheel, but based on the multi-angle turning of universal wheel, it is difficult to guarantee that the grass pushing machine always travels along a straight line in a specific scene or when needed.

[0004] Therefore, it is necessary to improve the existing grass pushing machine to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a grass pushing machine, which can not only realize multi-angle turning, but also make the grass pushing machine always travel along a straight line in a specific scene or when needed.

[0006] To achieve the above object, the utility model provides a grass pushing machine, which comprises:

[0007] A machine body;

[0008] A walking assembly comprising a first walking wheel and a second walking wheel arranged forward and backward along the advancing direction of the grass pushing machine;

[0009] An adapter connecting the machine body and the first walking wheel, the first walking wheel being connected to the adapter, and the adapter being pivotally connected to the machine body; and

[0010] A locking device configured to lock the adapter so that the first walking wheel travels in a fixed direction relative to the machine body;

[0011] The locking device has a first state and a second state, in the first state, the machine body and the adapter are movably connected, and the adapter rotates relative to the machine body; in the second state, the machine body and the adapter are clamped, so that the first walking wheel travels in a fixed direction relative to the machine body.

[0012] As a further improvement of the utility model, the first walking wheel is provided with two first walking wheels arranged oppositely, and the locking device is arranged corresponding to each first walking wheel.

[0013] As a further improvement of the utility model, the first hole is arranged on the machine body, the second hole is arranged on the adapter, the first hole and the second hole are mutually positioned to be penetrated by the locking device, one end of the locking device is exposed on the side of the machine body away from the first walking wheel, and the other end penetrates the second hole, so that the adapter and the machine body remain relatively static.

[0014] As a further improvement of the utility model, the locking device comprises a shell, a pin shaft accommodated in the shell and an elastic element sleeved on the outer side of the pin shaft, in the first state, the pin shaft penetrates the first hole, and the elastic element is in a compressed state; in the second state, the pin shaft penetrates the first hole and the second hole, and the elastic element is reset.

[0015] As a further improvement of the utility model, the side of the pin shaft towards the second hole is provided with a supporting table, one end of the elastic element abuts on the inner wall surface of the first hole, and the other end abuts on the supporting table.

[0016] As a further improvement of the utility model, the shell comprises an upper shell and a lower shell assembled with each other, the side of the lower shell towards the upper shell is provided with two oppositely arranged first protruding parts, and a first recess part connecting the two first protruding parts, the first recess part is also provided with two oppositely arranged second protruding parts, and the upper shell is correspondingly provided with a second protruding part matched with the first recess part and a second recess part matched with the first protruding part.

[0017] As a further improvement of the utility model, the pin shaft is fixedly connected with the upper shell, when the second protruding part abuts on the first protruding part, the locking device is in the first state, the pin shaft is exposed between the first recess part and the second recess part, and the elastic element is in a compressed state; when the second protruding part abuts on the first recess part, the locking device is in the second state, the upper shell and the lower shell are mutually spliced, the elastic element is reset to a released state, and the pin shaft is clamped in the second hole.

[0018] As a further improvement of the utility model, the lower surface of the second protruding part is also provided with a third recess part matched with the first protruding part.

[0019] As a further improvement of the utility model, the top of the upper shell is also provided with a screwing part for screwing, and one end of the pin shaft is fixed to the screwing part.

[0020] As a further improvement of the utility model, a through hole is further arranged on the machine body, the through hole is penetrated by a bearing to movably connect the first walking wheel and the machine body.

[0021] The utility model discloses a beneficial effect is: the utility model discloses a grass pushing machine sets the locking device at the position close to the first walking wheel to lock the adapter through the locking device, and then makes the first walking wheel relative to the body along the fixed direction and advances.Compared with the prior art, the utility model discloses a grass pushing machine not only can realize the steering of multiple angles, can also make the grass pushing machine enough in specific scene or need always along the straight line and advances. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic diagram of the grass pushing machine of the preferred embodiment of the utility model.

[0023] Figure 2 It is Figure 1 The structure schematic diagram of the grass pushing machine hidden part body, walking subassembly and handle subassembly.

[0024] Figure 3 It is Figure 2 The explosion chart of locking device in it.

[0025] Figure 4 It is Figure 3 The structure schematic diagram of upper shell in it.

[0026] Figure 5 It is Figure 3 The structure schematic diagram of lower shell in it.

[0027] Figure 6 It is Figure 2 The local schematic diagram of locking device in it when being in the first state.

[0028] Figure 7 It is Figure 2 The local schematic diagram of locking device in it when being in the second state. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model is described in detail below with the combination of the drawings and specific embodiment.

[0030] Please refer to Figure 1 The utility model discloses a grass pushing machine 100, the grass pushing machine 100 includes body 1, is located the walking subassembly 2 of body 1 below, cutting subassembly 3 and is located the handle subassembly 4 of body 1 rear and extends obliquely upwards. The handle subassembly 4 includes the push rod 41 connected with the body 1, and the handle 42 of setting at the end of push rod 41, the top of push rod 41, with the position of handle 42 connection is equipped with control panel 5, the handle 42 supplies the operator to hold to control the grass pushing machine 100, the control panel 5 is used to control the start and stop of grass pushing machine 100, the self -walking and steering of walking subassembly 2 and the rotating speed of cutting subassembly 3 etc.

[0031] Specifically, the walking assembly 2 comprises walking wheels arranged on opposite sides of the machine body 1. In the advancing direction of the grass mower 100, the walking wheels comprise first walking wheels 21 and second walking wheels 22 arranged in front and back. The first walking wheels 21 are respectively arranged on the left and right sides of the front end of the machine body 1 and are pivotally connected to the machine body 1. The second walking wheels 22 are respectively arranged on the left and right sides of the rear end of the machine body 1 and are pivotally connected to the machine body 1. It can be understood that the second walking wheels 22 are driven by a hub motor, and the first walking wheels 21 are only guide wheels. For the convenience of description, the advancing direction of the grass mower 100 is defined as the front-rear direction, and the width direction of the grass mower 100 is defined as the left-right direction, and the front-rear direction is perpendicular to the left-right direction.

[0032] In this embodiment, the first walking wheels 21 are universal wheels, which can be turned in any direction as needed to adapt to different environments.

[0033] Please refer to Figure 2 and Figure 3 In this embodiment, the machine body 1 is movably connected to the first walking wheels 21, so that the first walking wheels 21 can be universally rotated relative to the machine body 1. A connecting piece 211 is arranged between the machine body 1 and the first walking wheels 21. The connecting piece 211 comprises a fixed part 2111 fixedly connected to the first walking wheels 21 and a movable part 2112 movably connected to the machine body 1. The first walking wheels 21 are movably connected to the machine body 1 through the connecting piece 211.

[0034] Preferably, the fixed part 2111 is provided with two fixed parts 2111, which are respectively arranged on the two sides of the first walking wheels 21. The fixed part 2111 is fixedly connected to the rotation shaft of the first walking wheels 21, so as to drive the advancing of the grass mower 100 through the first walking wheels 21 without affecting the rotation of the first walking wheels 21.

[0035] The machine body 1 is provided with a through hole (not shown) corresponding to the position of the movable part 2112. The through hole is used for the bearing 111 to pass through to movably connect the first walking wheels 21 and the machine body 1. Preferably, the movable part 2112 is provided with a through hole 2110 corresponding thereto. The through hole 2110 is aligned with the through hole to be passed through by the bearing 111. One end of the bearing 111 is fixedly connected to the movable part 2112 after passing through the through hole 2110. In this way, the first walking wheels 21 are turned relative to the grass mower 100 through the connecting piece 211 and the bearing 111, thereby driving the turning of the entire grass mower 100.

[0036] The side of the machine body 1 close to the through hole is also provided with a locking device 12, which is configured to orient the first walking wheel 21 so that it cannot turn. That is, by providing the locking device 12, the grass mower 100 can only travel in a fixed direction, i.e. straight, and cannot turn. Preferably, the locking device 12 is provided corresponding to each first walking wheel 21.

[0037] Preferably, the machine body 1 is provided with a first hole 113, and the movable part 2112 of the adapter 211 is provided with a second hole 2113 corresponding to the first hole 113, the first hole 113 and the second hole 2113 are aligned with each other to allow the locking device 12 to pass through at the same time, one end of the locking device 12 is exposed on the side of the machine body 1 away from the first walking wheel 21, and the other end passes through the second hole 2113, so that the adapter 211 and the machine body 1 remain relatively stationary.

[0038] Preferably, when one end of the locking device 12 passes through the second hole 2113, the adapter 211 is double-positioned by the bearing 111 and the locking device 12, and is limited to a straight line. When the line connecting the first hole 113 and the through hole is a horizontal line, the first walking wheel 21 travels straight.

[0039] Specifically, please refer to Figures 3 to 5 The locking device 12 includes an upper shell 121, a lower shell 122, and a pin shaft 123 passing through the first hole 113 and the second hole 2113, the lower shell 122 is fixed on the machine body 1 by screws, the upper shell 121 is arranged above the lower shell 122 and abuts against the lower shell 122, and the upper shell 121 and the lower shell 122 are combined to form a housing of the locking device 12, which is hollow to allow the pin shaft 123 to pass through.

[0040] The locking device 12 has a first state and a second state, when in the first state, the pin shaft 123 is not clamped into the second hole 2113, at this time, the adapter 211 is in a movable state and can rotate relative to the machine body 1 in all directions; when in the second state, the pin shaft 123 is clamped into the second hole 2113, at this time, the adapter 211 is clamped with the locking device 12, and is double-positioned by the bearing 111 and the pin shaft 123, so that the first walking wheel 21 travels straight.

[0041] Preferably, the locking device 12 further comprises an elastic member 125 inside the first hole 113, the elastic member 125 is sleeved outside the pin shaft 123, the pin shaft 123 is provided with a supporting table 1231 on one side facing the second hole 2113, one end of the elastic member 125 abuts against the inner wall surface of the first hole 113 on the side away from the lower shell 122, and the other end abuts against the supporting table 1231. That is, the elastic member 125 is located between the first hole 113 and the supporting table 1231, and can be compressed during the movement of the supporting table 1231 of the pin shaft 123 towards the lower shell 122.

[0042] Preferably, as shown in Figure 6 When the locking device 12 is in the first state, the elastic member 125 is compressed, and the pin shaft 123 is separated from the second hole 2113; as shown in Figure 7 When the locking device 12 is in the second state, the elastic member 125 is elastically reset to make the pin shaft 123 clamped into the second hole 2113. In this way, the control of the straight travel and steering of the first walking wheel 21 is realized.

[0043] The lower shell 122 is provided with two first protruding parts 1221 on the side facing the upper shell 121, and a first recessed part 1222 connecting the two first protruding parts 1221, and the first recessed part 1222 is also provided with two and opposite.

[0044] The upper shell 121 is correspondingly provided with a second protruding part 1211 and a second recessed part 1212, the first protruding part 1221 and the second recessed part 1212 are matched with each other, and the first recessed part 1222 and the second protruding part 1211 are matched with each other, so that the upper shell 121 and the lower shell 122 can be assembled to form a complete shell.

[0045] The pin shaft 123 is fixedly connected with the upper shell 121, when the second protruding part 1211 abuts against the first protruding part 1221, the locking device 12 is in the first state, the pin shaft 123 is lifted under the driving of the upper shell 121 and is exposed between the first recessed part 1222 and the second recessed part 1212, and the elastic piece 125 is in the compressed state; when the second protruding part 1211 abuts against the first recessed part 1222, the locking device 12 is in the second state, the upper shell 121 and the lower shell 122 are mutually spliced, the elastic piece 125 returns to the released state, and the pin shaft 123 is clamped into the second hole 2113. That is to say, the height of the pin shaft 123 above the first hole 113 is adjusted by adjusting the position between the upper shell 121 and the lower shell 122, so as to be clamped into the second hole 2113 or be located outside the second hole 2113, thereby the advancing state of the first walking wheel 21 is adjusted.

[0046] Preferably, the lower surface of the second protruding part 1211 is provided with a third recessed part 1213, the third recessed part 1213 is matched with the first protruding part 1221, so that the second protruding part 1211 can stably abut above the first protruding part 1221 and not easily fall off.

[0047] The top of the upper shell 121 is further provided with a screwing part 124 for screwing, one end of the pin shaft 123 is fixed with the screwing part 124, so that when the screwing part 124 is screwed, the pin shaft 123 can be driven to rotate synchronously, thereby the locking device 12 is switched between the first state and the second state.

[0048] In summary, the grass pushing machine 100 sets the locking device 12 at the position of the machine body 1 relative to the first walking wheel 21, so that the straight running or turning of the first walking wheel 21 is controlled by screwing the locking device 12, so as to meet different use requirements of the operator and expand the application range; meanwhile, the locking device 12 is arranged at the position close to the first walking wheel 21, so that the adapter 211 can be locked by the locking device 12, thereby the first walking wheel 21 runs in the fixed direction relative to the machine body 1.

[0049] The above embodiments are only used to illustrate the technical scheme of the utility model and not 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 scheme of the utility model can be modified or replaced equivalently without departing from the spirit and range of the technical scheme of the utility model.

Claims

1. A lawn mower characterized by comprising: The utility model relates to a mowing machine, comprising: a machine body; a walking assembly comprising a first walking wheel and a second walking wheel arranged in front and back along the mowing machine's direction of travel; a connecting piece connecting the machine body and the first walking wheel, the first walking wheel being connected to the connecting piece, and the connecting piece being pivotally connected to the machine body; and a locking device configured to lock the connecting piece so that the first walking wheel travels in a fixed direction relative to the machine body; wherein the locking device has a first state and a second state, in the first state, the machine body and the connecting piece are movably connected, and the connecting piece rotates relative to the machine body; in the second state, the machine body and the connecting piece are clamped, so that the first walking wheel travels in a fixed direction relative to the machine body. The first walking wheel is provided with two first walking wheels arranged oppositely, and each first walking wheel is provided with the locking device correspondingly.

2. The lawn roller of claim 1, wherein The machine body is provided with a first hole, and the connecting piece is provided with a second hole correspondingly, the first hole and the second hole are opposite to each other, so that the locking device passes through simultaneously.

3. The lawn roller of claim 1, wherein, The locking device comprises a shell, a pin shaft contained in the shell, and an elastic piece sleeved outside the pin shaft, in the first state, the pin shaft penetrates into the first hole, and the elastic piece is in a compressed state; 4. The lawn roller of claim 3, wherein in the second state, the pin shaft penetrates into the first hole and the second hole simultaneously, and the elastic piece returns to normal. The side of the pin shaft facing the second hole is provided with a table, one end of the elastic piece abuts against the inner wall surface of the first hole, and the other end abuts against the table.

5. The lawn roller of claim 4, wherein, The shell comprises an upper shell and a lower shell assembled with each other, the side of the lower shell facing the upper shell is provided with two first protruding parts arranged oppositely, and a first recess part connecting the two first protruding parts, the first recess part is also provided with two first recess parts arranged oppositely, and the upper shell is provided with a second protruding part matched with the first recess part and a second recess part matched with the first protruding part correspondingly.

6. The lawn roller of claim 4, wherein, The pin shaft is fixedly connected to the upper shell, when the second protruding part abuts against the first protruding part, the locking device is in the first state, the pin shaft is exposed between the first recess part and the second recess part, and the elastic piece is in a compressed state; when the second protruding part abuts against the first recess part, the locking device is in the second state, the upper shell and the lower shell are combined with each other, the elastic piece returns to a released state, and the pin shaft is clamped into the second hole.

7. The lawn roller of claim 6, wherein, The lower surface of the second protruding part is also provided with a third recess part matched with the first protruding part.

8. The lawn roller of claim 6, wherein, The top of the upper shell is also provided with a screwing part for screwing, and one end of the pin shaft is fixed to the screwing part.

9. The lawn roller of claim 6, wherein, The machine body is also provided with a through hole, the through hole is penetrated by a bearing to movably connect the first walking wheel and the machine body.

10. The lawn roller of claim 1, wherein, ​

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