A folding push bar structure for a lawnmower

Abstract

The utility model discloses a mower folding push rod structure, including setting the limit board on the machine body and rotating setting the rear push rod on the machine body, a plurality of limit holes are seted up on the limit board, the rear push rod is in -line with the pull rod and locking piece, still include the unlocking piece of movable setting in the lower surface of rear push rod, the unlocking piece is connected with locking piece by pull rod and drives, the unlocking piece drives locking piece to insert into the limit hole or from the limit hole and take out. Unlocking piece is located the lower surface of rear push rod, thereby make unlocking piece not easy to be triggered, improve the stability that unlocking piece cooperates locking piece will lock the rear push rod, improved the security of user use.

Description

Technical Field

[0001] This utility model relates to the technical field of lawnmowers, and more particularly to a folding push rod structure for a lawnmower. Background Technology

[0002] A lawnmower is a mechanical tool used to trim lawns and vegetation. For example, Chinese utility model patent with authorization announcement number CN212696724U discloses a lawnmower in which the pin can be engaged or disengaged from the groove by pressing the unlocking trigger located on the top of the push rod with one hand, thereby locking or unlocking the push rod and pushing the push rod to be folded or unfolded.

[0003] Because the unlock trigger is located at the top of the push rod, it is easy to accidentally activate, causing the push rod to fold unexpectedly, which affects user safety and needs to be improved. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies, such as the unlocking trigger being located at the top of the push rod, which makes it easy for the unlocking trigger to be accidentally activated, causing the push rod to fold unexpectedly and affecting user safety. It provides a new folding push rod structure for lawnmowers.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A lawnmower folding push rod structure includes a limiting plate mounted on the machine body and a rear push rod rotatably mounted on the machine body. The limiting plate has several limiting holes. The rear push rod has a pull rod and a locking component inside. It also includes an unlocking component movably mounted on the lower surface of the rear push rod. The unlocking component and the locking component are connected by the pull rod and are driven by it. The unlocking component drives the locking component to be inserted into or disengaged from the limiting holes.

[0007] The unlocking element is located on the lower surface of the rear push rod, making it less likely to be triggered. This improves the stability of the unlocking element working with the locking element to lock the rear push rod, thus enhancing user safety.

[0008] Preferably, in the above-described lawnmower folding push rod structure, the unlocking component is a handle rotatably mounted on the lower surface of the rear push rod. The handle rotates along the height direction toward or away from the lower surface of the rear push rod, causing the locking component to be inserted into or withdrawn from the limiting hole. In its natural state, the handle is fastened to the lower surface of the rear push rod.

[0009] The unlocking mechanism uses a rotating handle. To unlock the rear push rod, the handle needs to be rotated outward along the height direction. This makes it difficult to rotate the handle outward if the unlocking mechanism is accidentally touched or bumped, further improving the stability of the unlocking mechanism and locking mechanism in locking the rear push rod.

[0010] Preferably, in the above-described lawnmower folding push rod structure, the rear push rod includes a handle and side rods located at both ends of the handle. The two side rods have pull rods and locking components. The handle is located on the lower surface of the side rod and is connected to the corresponding pull rod. The number of limiting plates corresponds one-to-one with the number of side rods and is located at the lower end of the side rods.

[0011] The unlocking mechanism uses two sets of handles, along with a pull rod, a locking element, and a limiting plate, to unlock or lock the two side rods of the rear push rod. Therefore, when the rear push rod needs to be pushed, both handles must be turned outwards together to unlock the rear push rod, further improving safety during use.

[0012] Preferably, the above-described lawnmower folding push rod structure further includes a positioning plate disposed on the machine body. The positioning plate is located below the rear push rod, and the rear push rod rotates toward or away from the positioning plate and is in contact with or separate from the positioning plate.

[0013] The positioning plate can limit the rotation angle of the rear push rod, making it easier to rotate the rear push rod into place. This improves the accuracy of the alignment between the end of the locking part and the limiting hole, making it easier to unlock or lock the rear push rod.

[0014] Preferably, in the above-described lawnmower folding push rod structure, the end of the positioning plate is bent upward to form an inclined portion, and the upper surface of the inclined portion is in contact with the lower surface of the rear push rod; the positioning plate is provided with positioning holes that cooperate with the locking member.

[0015] The extended inclined section increases the contact area between the rear push rod and the positioning plate, allowing it to fit more closely to the lower surface of the rear push rod and preventing the rear push rod from hitting the end of the positioning plate and causing a dent when it is rotated. When the rear push rod is folded into the lawnmower body, the locking mechanism and the positioning hole can keep the rear push rod folded into the lawnmower body.

[0016] Preferably, in the above-described lawnmower folding push rod structure, the handle is provided with a first fixing plate and two second fixing plates. A rotating shaft is provided on the inner side of the second fixing plate. The rear push rod is provided with a rotating shaft hole, a first movable groove and two second movable grooves. The first fixing plate is inserted into the first movable groove and connected to one end of the pull rod. The second fixing plate is inserted into the second movable groove and the rotating shaft is inserted into the rotating shaft hole for a plug-in fit. The handle rotates around the rotating shaft along the height direction of the second movable groove. The second fixing plate is in contact with the upper or lower inner wall of the second movable groove as the handle rotates.

[0017] The first and second movable slots can limit the rotation angle range of the first and second fixed plates, further improving the accuracy of the alignment between the end of the locking component and the limiting hole.

[0018] Preferably, in the above-described lawnmower folding push rod structure, a supporting protrusion is provided inside the rear push rod, and the end of the second fixing plate is placed on the supporting protrusion.

[0019] The supporting protrusions can support the second fixed plate, thereby improving the stability of the handle when it rotates through the rotating shaft. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the locking member of this utility model being inserted into the limiting hole;

[0021] Figure 2 This is a schematic diagram of the locking component of this utility model retracting from the limiting hole;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the handle, locking element, and pull rod of this utility model;

[0024] Figure 5 This is a partial structural diagram illustrating the supporting protrusion and the tie rod of this utility model;

[0025] Figure 6 This is a structural schematic diagram of the side rod, limiting plate, and positioning plate of this utility model.

[0026] Explanation of reference numerals in the attached drawings: Limiting plate 1; Limiting hole 11; Rear push rod 2; Grip rod 21; Side rod 22; Rotary shaft hole 23; First movable groove 24; Second movable groove 25; Supporting protrusion 26; Pull rod 3; Locking component 4; Unlocking component 5; Handle 51; Positioning plate 6; Inclined part 61; Positioning hole 62; First fixing plate 7; Second fixing plate 71; Rotating shaft 711. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-6 The present invention will be further described in detail with reference to specific embodiments, but these are not intended to limit the present invention: Example

[0028] like Figures 1-6As shown, a lawnmower folding push rod structure includes a limiting plate 1 mounted on the machine body and a rear push rod 2 rotatably mounted on the machine body. The limiting plate 1 has several limiting holes 11. The rear push rod 2 has a pull rod 3 and a locking member 4 inside. It also includes an unlocking member 5 movably mounted on the lower surface of the rear push rod 2. The unlocking member 5 and the locking member 4 are connected by the pull rod 3 and are driven by it. The unlocking member 5 drives the locking member 4 to be inserted into or disengaged from the limiting hole 11.

[0029] Preferably, the unlocking component 5 is a handle 51 rotatably disposed on the lower surface of the rear push rod 2. The handle 51 rotates along the height direction toward or away from the lower surface of the rear push rod 2, thereby driving the locking component 4 to be inserted into or withdrawn from the limiting hole 11. In its natural state, the handle 51 is fastened to the lower surface of the rear push rod 2.

[0030] Preferably, the rear push rod 2 includes a grip rod 21 and side rods 22 disposed at both ends of the grip rod 21. The two side rods 22 are equipped with pull rods 3 and locking members 4. The handle 51 is located on the lower surface of the side rods 22 and is connected to the corresponding pull rods 3. The number of limiting plates 1 corresponds one-to-one with the number of side rods 22 and is located at the lower end of the side rods 22.

[0031] There are two handles 51 located on the lower surface of the side rod 22. The pull rod 3 is a pull rod 3. The number of pull rods 3, locking member 4, and limiting plate 1 corresponds one-to-one with the number of handles 51. The handle 51 is connected to the corresponding pull rod 3.

[0032] Preferably, the device also includes a positioning plate 6 disposed on the body, the positioning plate 6 being located below the rear push rod 2, the rear push rod 2 rotating toward or away from the positioning plate 6 and engaging or separating from the positioning plate 6.

[0033] Preferably, the end of the positioning plate 6 is bent upward to form an inclined portion 61, and the upper surface of the inclined portion 61 is in contact with the lower surface of the rear push rod 2; the positioning plate 6 is provided with a positioning hole 62 that cooperates with the locking member 4.

[0034] Preferably, the handle 51 is provided with a first fixing plate 7 and two second fixing plates 71. A rotating shaft 711 is provided on the inner side of the second fixing plate 71. The rear push rod 2 is provided with a rotating shaft hole 23, a first movable groove 24 and two second movable grooves 25. The first fixing plate 7 is inserted into the first movable groove 24 and connected to one end of the pull rod 3. The second fixing plate 71 is inserted into the second movable groove 25 and the rotating shaft 711 is inserted into the rotating shaft hole 23 for insertion and engagement. The handle 51 rotates around the rotating shaft 711 along the height direction of the second movable groove 25. The second fixing plate 71 is in contact with the upper or lower inner wall of the second movable groove 25 as the handle 51 rotates.

[0035] Preferably, the rear push rod 2 is provided with a supporting protrusion 26, and the end of the second fixing plate 71 is placed on the supporting protrusion 26.

[0036] Specifically, such as Figure 1 , Figures 4-6 As shown, the rear push rod 2 also includes two connectors. The grip rod 21 is U-shaped, and the lower end of the grip rod 21 and the upper end of the side rod 22 are respectively inserted into the upper and lower sides of the connector and fixed with screws. The connector includes a detachable upper half and a lower half. The first movable groove 24 and the second movable groove 25 are located on the upper surface of the lower half and extend downward along the height direction. The second movable groove 25 is distributed on the left and right sides of the first movable groove 24. The upper half covers and abuts against the lower half and seals the top openings of the first movable groove 24 and the second movable groove 25.

[0037] The pivot hole 23 is set on the side rod 22. When assembling the handle 51 on the lower surface of the rear push rod 2, first clamp the second fixing plate 71 on the outside of the side rod 22 and insert the rotating shaft 711 into the corresponding pivot hole 23. Then, put the lower half of the connector on the side rod 22 and make the supporting protrusion 26 abut against the lower end of the second fixing plate 71. Finally, fix the grip 21, the upper half, the lower half and the side rod 22 with screws. Since the upper half is detachably installed on the lower half, the ease of assembling the handle 51 on the lower surface of the rear push rod 2 is improved.

[0038] The two ends of the pull rod 3 have Z-shaped hooks, and the first fixing plate 7 and the locking piece 4 are fastened to the pull rod 3 by the Z-shaped hooks.

[0039] like Figure 1 , Figures 4-6 As shown, the locking component 4 includes a square plate with an oblong hole, a long column integrally formed at the lower end of the square plate, and a return spring sleeved on the long column. One end of the return spring is connected to the lower end of the square plate, and the other end of the return spring is connected to the bottom end of the side rod 22. The return spring drives the end of the locking component 4 to pass through the rear push rod 2.

[0040] The machine body is equipped with a double-ended bolt located between the limiting plate 1 and the positioning plate 6. The double-ended bolt passes through the oblong hole on the square plate and the side rod 22. The oblong hole extends along the height direction. The pull rod 3 drives the locking member 4 to slide within the side rod 22 along the height direction of the side rod 22. The cooperation between the oblong hole and the double-ended bolt can guide the movement of the locking member 4, improving the accuracy of the alignment between the locking member 4 and the limiting hole 11 and the positioning hole 62. The double-ended bolt allows the side rod 22 to be rotatably mounted on the machine body. The side rod 22 rotates along the height direction with the double-ended bolt as the fulcrum.

[0041] More specifically, when it is necessary to adjust the tilt angle of the rear push rod 2, the two handles 51 are rotated outward. The handles 51 simultaneously drive the pull rod 3 and the locking piece 4 to move towards the upper end of the side rod 22. At this time, the end of the long column is disengaged from the limiting hole 11, the return spring is stretched, and the user can push the rear push rod 2 to rotate. When the rear push rod 2 is rotated to different heights, the handles 51 are released, the return spring is reset, and the long column is inserted into the corresponding limiting hole 11. The handles 51 are fastened to the rear push rod 2, and the rear push rod 2 can be locked again. This realizes the adjustment of different tilt angles of the rear push rod 2. In this embodiment, there are two limiting holes 11. The number of limiting holes 11 can be increased or decreased according to the actual situation.

[0042] The limiting plate 1 and the positioning plate 6 have the same shape. The top of the limiting plate 1 has a placement plane. The side wall of the positioning plate 6 has a positioning hole 62 for the insertion of the end of the long column. When it is necessary to fold the rear push rod 2 to the body of the lawnmower, first turn the two handles 51 outward, and then turn the rear push rod 2 towards the limiting plate 1 until the side rod 22 is horizontal. At this time, the upper surface of the side rod 22 is in contact with the placement plane, and the locking piece 4 is aligned with the positioning hole 62. Finally, after releasing the handle 51, the end of the long column is pushed into the positioning hole 62 under the elastic force of the return spring, and the handle 51 is fastened to the rear push rod 2. At this time, the rear push rod 2 can be folded and locked to the body of the lawnmower.

[0043] In this embodiment, handles 51 are located on the lower surfaces of the two side rods 22. Handles 51 extend along the height direction of the side rods 22, and in their natural state, handles 51 are completely in contact with the side rods 22. Therefore, when handles 51 are accidentally touched or bumped during use, handles 51 are not easily turned outwards by accident. When the rear push rod 2 needs to be unlocked, both handles 51 need to be turned outwards, which can better improve the safety during use.

[0044] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A folding push rod structure for a lawnmower, comprising a limiting plate (1) mounted on the machine body and a rear push rod (2) rotatably mounted on the machine body, wherein the limiting plate (1) has a plurality of limiting holes (11), and the rear push rod (2) contains a pull rod (3) and a locking element (4), characterized in that: It also includes an unlocking component (5) that is movably disposed on the lower surface of the rear push rod (2). The unlocking component (5) and the locking component (4) are connected by a pull rod (3) and driven by the unlocking component (5). The unlocking component (5) drives the locking component (4) to be inserted into or removed from the limiting hole (11).

2. The lawnmower folding push rod structure according to claim 1, characterized in that: The unlocking component (5) is a handle (51) that is rotatably mounted on the lower surface of the rear push rod (2). The handle (51) rotates along the height direction toward or away from the lower surface of the rear push rod (2), and drives the locking component (4) to be inserted into or withdrawn from the limiting hole (11). In its natural state, the handle (51) is fastened to the lower surface of the rear push rod (2).

3. The lawnmower folding push rod structure according to claim 2, characterized in that: The rear push rod (2) includes a grip (21) and side rods (22) located at both ends of the grip (21). The two side rods (22) contain a pull rod (3) and a locking member (4). The handle (51) is located on the lower surface of the side rod (22) and is connected to the corresponding pull rod (3). The number of limiting plates (1) corresponds one-to-one with the number of side rods (22) and is located at the lower end of the side rods (22).

4. The lawnmower folding push rod structure according to claim 1, characterized in that: It also includes a positioning plate (6) set on the body, the positioning plate (6) being located below the rear push rod (2), the rear push rod (2) rotating toward or away from the positioning plate (6) and fitting or separating from the positioning plate (6).

5. The lawnmower folding push rod structure according to claim 4, characterized in that: The end of the positioning plate (6) is bent upward to form an inclined part (61), and the upper surface of the inclined part (61) is in contact with the lower surface of the rear push rod (2); the positioning plate (6) is provided with a positioning hole (62) that cooperates with the locking member (4).

6. The lawnmower folding push rod structure according to claim 3, characterized in that: The handle (51) is provided with a first fixing plate (7) and two second fixing plates (71). The inner side of the second fixing plate (71) is provided with a rotating shaft (711). The rear push rod (2) is provided with a rotating shaft hole (23), a first movable groove (24) and two second movable grooves (25). The first fixing plate (7) is inserted into the first movable groove (24) and connected to one end of the pull rod (3). The second fixing plate (71) is inserted into the second movable groove (25) and the rotating shaft (711) is inserted into the rotating shaft hole (23) for insertion and engagement. The handle (51) rotates around the rotating shaft (711) along the height direction of the second movable groove (25). The second fixing plate (71) is in contact with the upper or lower inner wall of the second movable groove (25) as the handle (51) rotates.

7. The lawnmower folding push rod structure according to claim 6, characterized in that: The rear push rod (2) is provided with a support protrusion (26), and the end of the second fixing plate (71) is placed on the support protrusion (26).

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