Handle folding device applied to mower

Abstract

The utility model discloses a handle folding device applied to a mowing machine, which comprises side covers arranged on two sides of the mowing machine, an adjusting rotating shaft is inserted on the side covers, a handle mounting seat for mounting a handle is rotatably arranged on the adjusting rotating shaft, the handle is fixed on the handle mounting seat, and the handle is fixed on the handle mounting seat. A handle mounting seat is arranged on the side cover, an angle adjusting block is arranged on the handle mounting seat in a sliding manner, a clamping convex part is formed on the angle adjusting block, a plurality of clamping grooves for placing the clamping convex part are formed in the side cover, and the clamping convex part is placed in the clamping grooves, so that the handle is kept in a folded state or an unfolded state; the angle adjusting block always has the movement trend of moving towards the clamping groove, a driving block is clamped on the adjusting rotating shaft and connected with the angle adjusting block, the end of the adjusting rotating shaft is connected with an angle adjusting handle, and the angle adjusting handle rotates and drives the angle adjusting block to be separated from the clamping groove so that the handle can be in a movable state.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, specifically to a handle folding device for lawnmowers. Background Technology

[0002] A lawnmower, also known as a lawn mower or lawn trimmer, is a common mechanical tool used for trimming lawns and vegetation. It can significantly save workers' time and reduce a lot of manpower, and is therefore widely used.

[0003] Existing lawnmowers typically include a frame, several wheels on both sides of the frame, a cutting mechanism mounted at the bottom of the frame, and a push handle connected to the frame. In use, the operator pushes the handle, the wheels move the frame, and the cutting mechanism trims the lawn. However, the push handle usually takes up a lot of space, so a foldable handle is often designed. This allows the lawnmower to be stored by folding the handle to the front of the machine, reducing the overall space occupied. However, most foldable push handles in related technologies are easy to trigger, resulting in a poor user experience.

[0004] For example, a lawnmower disclosed in announcement number CN212696724U discloses a method of applying external force with one hand to an unlocking trigger to drive the transmission mechanism to move, thereby driving the pin to move and disengage from the groove, so that the push rod rotates relative to the lawnmower body, thereby causing the push rod to fold or change its tilt angle. However, the unlocking trigger is located at the end of the push rod, and the operator may accidentally trigger it while pushing the lawnmower or in other scenarios, thus reducing the user experience. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model proposes a folding device for the handle of a lawnmower.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A handle folding device for a lawnmower includes side covers on both sides of the lawnmower. An adjusting shaft is inserted into the side cover, and a handle mounting seat for mounting the handle is rotatably mounted on the adjusting shaft. The handle is fixed to the handle mounting seat, and an angle adjusting block is slidably mounted on the handle mounting seat. The angle adjusting block has a locking protrusion, and the side cover has a plurality of slots for the locking protrusion to be inserted into. The locking protrusion is inserted into the slots to keep the handle in a folded or open state.

[0008] The angle adjustment block always tends to move toward the slot. A drive block is mounted on the adjustment shaft. The drive block is connected to the angle adjustment block. An angle adjustment handle is connected to the end of the adjustment shaft. The angle adjustment handle rotates and drives the angle adjustment block to disengage from the slot, so that the handle is in an active state.

[0009] Preferably, the side cover has a first engaging area and a second engaging area. The slot is disposed on the first engaging area and the second engaging area. When the engaging protrusion is engaged in the first engaging area, the lawnmower and the handle form a supporting angle. When the engaging protrusion is engaged in the second engaging area, the handle is folded and retracted onto the lawnmower. Through the above improvements, in daily use, the engaging protrusion on the angle adjustment block can be engaged with the slot on the first engaging area to form a supporting angle between the lawnmower and the handle for daily use. When the handle is not in use, the engaging protrusion on the angle adjustment block can be engaged with the slot on the second engaging area to fold and retract the handle onto the lawnmower, making it more convenient for daily use and storage of the lawnmower.

[0010] Preferably, the first snap-fit ​​area has a plurality of snap-fit ​​slots arranged at intervals, and the snap-fit ​​protrusion snaps into the snap-fit ​​slots so that the lawnmower and the handle form different support angles. Through the above improvements, the snap-fit ​​slots and snap-fit ​​protrusions on the first snap-fit ​​area cooperate to form different support angles to meet different usage scenarios and further improve the user experience.

[0011] Preferably, the side cover is provided with an elastic spring, one end of which is connected to the side cover and the other end is connected to the angle adjustment block, so that the angle adjustment block always has a tendency to move towards the slot. With the above improvement, after the angle of the handle is adjusted, the angle adjustment block will move and reset under the action of the elastic spring, and the locking protrusion on the angle adjustment block will be repositioned into the new slot, so that the handle is kept at the current angle, thereby achieving handle angle maintenance.

[0012] Preferably, the angle adjustment block has a sliding protrusion, and the driving block has a driving groove for the sliding protrusion to be inserted. With the above improvement, the sliding protrusion and the driving groove cooperate, and when the driving block is rotated under the action of the angle adjustment handle, the angle adjustment block is driven to slide.

[0013] Preferably, the handle mounting base is provided with a handle fixing plate for connecting the handle, and the handle fixing plate and the handle mounting base form a sliding channel, and the angle adjustment block is slidably disposed in the sliding channel. Through the above improvements, the stability and smoothness of the angle adjustment block sliding in the sliding channel are enhanced.

[0014] Preferably, a guide protrusion is formed on the handle fixing plate, and a guide groove is formed on the angle adjustment block for the guide protrusion to be inserted into. Through the above improvements, the stability of the angle adjustment block during the sliding process is further improved by using the guide protrusion and the guide groove to cooperate.

[0015] Preferably, a limiting groove is formed on the handle mounting base, and the snap-fit ​​protrusion is slidably disposed in the limiting groove. Through the above improvements, the limiting groove and the snap-fit ​​protrusion cooperate, thereby further improving the stability of the snap-fit ​​protrusion and the snap-fit ​​groove on the angle adjustment block.

[0016] Preferably, the adjusting shaft includes a rotating part and a locking part. The rotating part is rotatably inserted into the lawnmower, and the locking part has a locking plane. The angle adjusting handle and the drive block are locked to the locking plane. With the above improvement, the handle mounting seat is set on the rotating part, and the angle adjusting handle and the drive block are locked to the locking plane of the locking part. When the angle adjusting handle drives the adjusting shaft to rotate, the adjusting shaft will drive the drive block to move, thereby controlling the movement of the angle adjusting block.

[0017] Preferably, the handle mounting base is covered with a housing, and a mounting slot is formed on the side cover. A limiting plate is inserted into the mounting slot, and the limiting plate abuts against the housing to restrict the rotation of the handle. Through the above improvements, the rotation angle of the handle is restricted by the limiting plate, thereby improving the convenience of adjusting the handle angle during use.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0019] By installing side covers on both sides of the lawnmower, and inserting an adjustment shaft into the side covers, a handle mounting base for mounting the handle is rotated on the adjustment shaft. The handle is fixed to the handle mounting base, and an angle adjustment block is slidably mounted on the handle mounting base. The angle adjustment block has a locking protrusion, and the side covers have several slots for the locking protrusion to be inserted. The locking protrusion is inserted into the slot, allowing the handle to fold or unfold, realizing handle folding and angle adjustment. Compared with traditional folding structures, it is less prone to accidental activation, thus improving the user experience. Furthermore, a drive block is engaged on the adjustment shaft, and the drive block is connected to the angle adjustment block. An angle adjustment handle is connected to the end of the adjustment shaft. When it is necessary to adjust the handle angle, the angle adjustment handle can be rotated, which drives the drive block to move and disengage the angle adjustment block from the slot, allowing the handle to be in an active state for handle folding and angle adjustment, thus improving the convenience of the user. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the handle folding device of this utility model in conjunction with a lawnmower;

[0021] Figure 2 This is a schematic diagram of the overall structure of the handle folding device of this utility model;

[0022] Figure 3 This is a structural schematic diagram of the handle folding device of this utility model from another angle;

[0023] Figure 4 This is an exploded view of the handle folding device of this utility model;

[0024] Figure 5 This is a schematic diagram of the handle mounting base and angle adjustment block of this utility model;

[0025] Figure 6 This is a schematic diagram of the side cover of this utility model;

[0026] Figure 7 This is a schematic diagram of the structure for installing the handle fixing plate of this utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the adjusting shaft of this utility model;

[0028] In the diagram: 1. Side cover; 2. Adjustment shaft; 3. Handle mounting base; 4. Angle adjustment block; 5. Drive block; 6. Handle fixing plate; 7. Handle; 8. Angle adjustment handle; 1.1. Snap-fit ​​protrusion; 1.2. Snap-fit ​​groove; 1.3. First snap-fit ​​area; 1.4. Second snap-fit ​​area; 2.1. Elastic tension spring; 2.2. Snap-fit ​​hook; 2.3. Sliding protrusion; 2.4. Drive slide groove; 3.1. Sliding channel; 3.2. Guide protrusion; 3.3. Guide groove; 3.4. Limit slide groove; 3.5. Positioning hole; 4.1. Rotating part; 4.2. Snap-fit ​​part; 4.3. Snap-fit ​​surface; 5.1. Outer shell; 5.2. Mounting slot; 5.3. Limiting plate; Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0031] like Figure 1-8As shown, a handle folding device for a lawnmower includes side covers 1 on both sides of the lawnmower. An adjusting shaft 2 is inserted into the side cover 1, and a handle mounting seat 3 for mounting a handle 7 is rotatably mounted on the adjusting shaft 2. The handle 7 is fixed on the handle mounting seat 3, and an angle adjusting block 4 is slidably mounted on the handle mounting seat 3. The angle adjusting block 4 has a snap-fit ​​protrusion 1.1. The side cover 1 has a plurality of slots 1.2 for inserting the snap-fit ​​protrusion 1.1. The snap-fit ​​protrusion 1.1 is inserted into the slot 1.2. The snap-fit ​​protrusion 1.1 engages with different slots 1.2 to fold or unfold the handle 7. Compared with traditional folding structures, it is less prone to accidental activation, thus improving the user experience.

[0032] Furthermore, the angle adjustment block 4 always tends to move towards the slot 1.2. The adjustment shaft 2 is fitted with a drive block 5, which is connected to the angle adjustment block 4. The end of the adjustment shaft 2 is connected to an angle adjustment handle 8. When it is necessary to adjust the angle of the handle 7, the angle adjustment handle 8 can be rotated. The angle adjustment handle 8 drives the drive block 5 to move and causes the angle adjustment block 4 to disengage from the slot 1.2, so that the handle 7 is in an active state for folding and angle adjustment, which improves the convenience of the user. After the angle adjustment is completed, the locking protrusion 1.1 on the angle adjustment block 4 will be reinserted into the slot 1.2 so that the handle 7 maintains the current angle.

[0033] like Figures 1 to 7 As shown, as a further explanation of the engagement of the locking protrusion 1.1 and the locking groove 1.2, the side cover 1 has a first locking area 1.3 and a second locking area 1.4. The locking groove 1.2 is disposed on the first locking area 1.3 and the second locking area 1.4. When the locking protrusion 1.1 is engaged in the first locking area 1.3, the lawnmower and the handle 7 form a supporting angle. When the locking protrusion 1.1 is engaged in the second locking area 1.4, the handle 7 is folded and retracted onto the lawnmower.

[0034] When the handle 7 is in normal use, the locking protrusion 1.1 on the angle adjustment block 4 can be engaged with the slot 1.2 on the first locking area 1.3 to make the lawnmower and the handle 7 form a supporting angle for daily use. When the handle 7 is not in use, the locking protrusion 1.1 on the angle adjustment block 4 can be engaged with the slot 1.2 on the second locking area 1.4 to fold the handle 7 onto the lawnmower, making it more convenient for daily use and storage of the lawnmower.

[0035] Furthermore, a number of slots 1.2 are arranged at intervals on the first snap-fit ​​area 1.3, and the snap-fit ​​protrusion 1.1 snaps into the slots 1.2 so that the lawnmower and the handle 7 can form different support angles. By cooperating with the different slots 1.2 on the first snap-fit ​​area 1.3, different support angles can be formed to meet different usage scenarios and further improve the user experience.

[0036] For example, the first engagement area 1.3 is provided with three slots 1.2, and the engagement protrusion 1.1 engages with the three slots 1.2 respectively, so that the handle 7 has a normal use state, a highest gear use state, and a lowest gear use state. When the handle 7 is in the normal use state, the handle 7 forms a 57° angle with the center of the lawnmower. When the handle 7 is in the highest gear use state, the handle 7 forms a 51° angle with the center of the lawnmower. When the handle 7 is in the lowest gear use state, the handle 7 forms a 63° angle with the center of the lawnmower.

[0037] like Figures 1 to 7 As shown, as a further explanation of the embodiment of the angle adjustment block 4, an elastic tension spring 2.1 is provided on the side cover 1. One end of the elastic tension spring 2.1 is connected to the side cover 1, and the other end is connected to the angle adjustment block 4, so that the angle adjustment block 4 always has a tendency to move toward the slot 1.2.

[0038] During daily use, after adjusting the angle of the handle 7, the angle adjustment block 4 will move and reset under the action of the elastic spring 2.1. The locking protrusion 1.1 on the angle adjustment block 4 will be repositioned into the new slot 1.2, so that the handle 7 is kept at the current angle, thus achieving the angle retention of the handle 7.

[0039] Specifically, the angle adjustment block 4 has a sliding protrusion 2.3, and the drive block 5 has a drive groove 2.4 for the sliding protrusion 2.3 to be inserted into the drive groove 2.4. When the angle adjustment handle 8 is rotated, it drives the drive block 5 to rotate, causing the sliding protrusion 2.3 to slide in the drive groove 2.4, thereby disengaging the locking protrusion 1.1 on the angle adjustment block 4 from the locking groove 1.2. At this time, the handle 7 is in a movable rotation state, and the user can rotate the handle 7 as needed to adjust or fold the angle of the handle 7.

[0040] Furthermore, a handle fixing plate 6 for connecting the handle 7 is provided on the handle mounting base 3. The handle fixing plate 6 and the handle mounting base 3 form a sliding channel 3.1, and the angle adjustment block 4 is slidably disposed in the sliding channel 3.1, which improves the stability and smoothness of the angle adjustment block 4 sliding in the sliding channel 3.1.

[0041] In addition, a guide protrusion 3.2 is formed on the handle fixing plate 6, and a guide groove 3.3 is formed on the angle adjustment block 4 for the guide protrusion 3.2 to be inserted into. By using the guide protrusion 3.2 and the guide groove 3.3 to cooperate, the stability of the angle adjustment block 4 during the sliding process is further improved.

[0042] Preferably, the handle mounting base 3 has a positioning hole 3.5 for the guide protrusion 3.2 to be inserted into, so as to improve the reliability of the handle fixing plate 6 installation.

[0043] Preferably, a limiting groove 3.4 is formed on the handle mounting base 3, and the locking protrusion 1.1 is slidably disposed in the limiting groove 3.4. The limiting groove 3.4 cooperates with the locking protrusion 1.1, and the locking protrusion 1.1 slides in the limiting groove 3.4 to prevent the locking protrusion 1.1 from shifting, thereby further improving the stability of the locking protrusion 1.1 on the angle adjustment block 4 when it is engaged with the slot 1.2.

[0044] Preferably, a connecting plate is formed on the handle mounting base 3, and a mounting groove for the handle 7 to be inserted is formed between the connecting plate and the outer contour of the handle mounting base 3. A first connecting hole is formed on the connecting plate, a second connecting hole is formed on the handle fixing plate 6 opposite to the first connecting hole, and a third connecting hole is formed on the handle 7 opposite to the first connecting hole. The handle fixing plate 6 is fixed on the handle mounting base 3 by using screws passing through the first connecting hole, the second connecting hole, and the third connecting hole to ensure the reliability of the installation of the handle fixing plate 6.

[0045] like Figure 3 , Figure 8 As shown, in a further explanation of the embodiment of the adjusting shaft 2, the adjusting shaft 2 includes a rotating part 4.1 and a locking part 4.2. The rotating part 4.1 is rotatably inserted into the lawnmower body, and the locking part 4.2 has a locking plane 4.3, and the angle adjusting handle 8 and the drive block 5 are locked with the locking plane 4.3.

[0046] Specifically, the handle mounting base 3 is set on the rotating part 4.1, and the angle adjustment handle 8 and the drive block 5 are engaged with the engagement plane 4.3 of the engagement part 4.2. When the angle adjustment handle 8 drives the adjustment shaft 2 to rotate, the adjustment shaft 2 will drive the drive block 5 to move, thereby controlling the movement of the angle adjustment block 4.

[0047] like Figure 2 , Figure 3 As shown, in some other embodiments, the handle mounting base 3 is covered with a housing 5.1, and a mounting slot 5.2 is formed on the side cover 1. A limiting plate 5.3 is inserted into the mounting slot 5.2. The limiting plate 5.3 abuts against the housing 5.1 to restrict the rotation of the handle 7. The limiting plate 5.3 restricts the rotation angle of the handle 7 to improve the convenience of adjusting the angle of the handle 7 during use.

[0048] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A handle folding device for a lawnmower, characterized in that, The device includes side covers (1) on both sides of the lawnmower. An adjustment shaft (2) is inserted into the side cover (1). A handle mounting seat (3) for mounting a handle (7) is rotated on the adjustment shaft (2). The handle (7) is fixed on the handle mounting seat (3). An angle adjustment block (4) is slidably provided on the handle mounting seat (3). The angle adjustment block (4) has a snap-fit ​​protrusion (1.1). The side cover (1) has a plurality of slots (1.2) for inserting the snap-fit ​​protrusion (1.1). The snap-fit ​​protrusion (1.1) is inserted into the slot (1.2) so that the handle (7) is kept in a folded or open state. The angle adjustment block (4) always has a tendency to move toward the slot (1.2). The adjustment shaft (2) is fitted with a drive block (5). The drive block (5) is connected to the angle adjustment block (4). The end of the adjustment shaft (2) is connected to an angle adjustment handle (8). The angle adjustment handle (8) rotates and drives the angle adjustment block (4) to disengage from the slot (1.2) so that the handle (7) is in an active state.

2. The folding handle device for a lawnmower according to claim 1, characterized in that, The side cover (1) has a first snap-fit ​​area (1.3) and a second snap-fit ​​area (1.4). The slot (1.2) is provided on the first snap-fit ​​area (1.3) and the second snap-fit ​​area (1.4). When the snap-fit ​​protrusion (1.1) is snapped on the first snap-fit ​​area (1.3), the lawnmower and the handle (7) form a support angle. When the snap-fit ​​protrusion (1.1) is snapped on the second snap-fit ​​area (1.4), the handle (7) is folded and retracted onto the lawnmower.

3. A handle folding device for a lawnmower according to claim 2, characterized in that, The first snap-fit ​​area (1.3) has several slots (1.2) arranged at intervals, and the snap-fit ​​protrusion (1.1) snaps into the slots (1.2) so that the lawnmower and the handle (7) form different support angles.

4. A handle folding device for a lawnmower according to claim 1, characterized in that, An elastic spring (2.1) is provided on the side cover (1). One end of the elastic spring (2.1) is connected to the side cover (1), and the other end is connected to the angle adjustment block (4) so ​​that the angle adjustment block (4) always has a tendency to move toward the slot (1.2).

5. A handle folding device for a lawnmower according to claim 1, characterized in that, The angle adjustment block (4) has a sliding protrusion (2.3), and the drive block (5) has a drive groove (2.4) for the sliding protrusion (2.3) to be inserted.

6. A handle folding device for a lawnmower according to claim 1, characterized in that, The handle mounting base (3) is provided with a handle fixing plate (6) for connecting the handle (7). The handle fixing plate (6) and the handle mounting base (3) form a sliding channel (3.1), and the angle adjustment block (4) is slidably disposed in the sliding channel (3.1).

7. A handle folding device for a lawnmower according to claim 6, characterized in that, The handle fixing plate (6) has a guide protrusion (3.2) and the angle adjustment block (4) has a guide groove (3.3) for the guide protrusion (3.2) to be inserted into.

8. A handle folding device for a lawnmower according to claim 1, characterized in that, A limiting groove (3.4) is formed on the handle mounting base (3), and the snap-fit ​​protrusion (1.1) is slidably disposed in the limiting groove (3.4).

9. A handle folding device for a lawnmower according to claim 1, characterized in that, The adjusting shaft (2) includes a rotating part (4.1) and a locking part (4.2). The rotating part (4.1) is rotatably inserted into the lawnmower. The locking part (4.2) has a locking plane (4.3), and the angle adjusting handle (8) and the drive block (5) are locked to the locking plane (4.3).

10. A handle folding device for a lawnmower according to claim 1, characterized in that, The handle mounting base (3) is covered with a housing (5.1), and a mounting slot (5.2) is formed on the side cover (1). A limiting plate (5.3) is inserted into the mounting slot (5.2), and the limiting plate (5.3) abuts against the housing (5.1) to restrict the rotation of the handle (7).

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