Lawn mower and handrail assembly thereof

Abstract

The utility model discloses a mowing machine and a handrail assembly thereof, aiming at the use pain point of a common handrail on a large-size hand-held self-propelled mowing machine in the prior art, the handrail assembly comprises a rod frame which is integrally formed in a shape like a Chinese character'men 'and is narrowed from bottom to top, and a holding part of which the cross section is in a shape like a circle, the middle part is a straight line section and the two sides are arc line sections, the width of a selectable holding part on the handle is reduced, the purpose of comfort and labor saving can be achieved without adjusting the holding positions of the two hands when a user uses the handle, and good ergonomic design performance is achieved. Compared with a handrail with an upper and lower split type structure main body frame, the grass collecting hopper has the advantage of high overall structural strength, and a user can conveniently penetrate through the middle of the handrail from the upper portion of the machine body to directly take, place and replace the grass collecting hopper.

Description

TECHNICAL FIELD

[0001] The utility model relates to garden equipment technical field, especially to the mower and its handrail assembly. BACKGROUND

[0002] A kind of handrail of prior art, its main frame is upper and lower split structure, upper and lower components are all in door shape, the width of both is similar, head and tail are connected, can be relatively rotated or up and down telescopic (can refer to the Chinese patent with the publication number CN205161135U "mower handrail folding mechanism" and the Chinese patent with the publication number CN217790385U "handle telescoping structure of mower and mower"), but this kind of handrail is applied to large size hand-held self-propelled mower such as 30 inches, there are following defects:

[0003] 1, the width of large size hand-held self-propelled mower body is large, so that the handrail and the place where it is held are also wide, and the user needs to adjust the hand holding position to achieve comfortable and labor-saving purpose when holding the handrail;

[0004] 2, the main body of large size hand-held self-propelled mower is heavy, the main frame of this kind of handrail is split structure, and the overall structural strength is limited, and the connection between the upper and lower components is prone to deformation and loosening after long-term use;

[0005] 3, the size of grass collecting hopper on small size hand-held self-propelled mower is small, and the handle position of grass collecting hopper is low, so the user needs to bend over or even squat to replace the grass collecting hopper from the back of the body each time, the size of grass collecting hopper on large size hand-held self-propelled mower is large, and the handle position of grass collecting hopper is high, so the user can reach the handle of grass collecting hopper by slightly bending over and passing through the middle of the handrail from the top of the body, but the space surrounded by the main frame in this kind of handrail is separated by the horizontal bar on the top of the lower component, so the grass collecting hopper cannot be smoothly replaced from the middle of the handrail. UTILITY MODEL CONTENTS

[0006] The utility model aims at overcoming the defects of the prior art, and provides a handrail assembly which is comfortable and labor-saving to hold and push and pull, and has high overall structural strength.

[0007] To solve the above technical problems, the handrail assembly provided by the utility model comprises a rod frame and a handle, the handle comprises a holding part, the rod frame is in a door shape, is formed by a single pipe or rod, and has a first width part and a second width part at the upper end and the lower end in the length direction, the width of the first width part is smaller than that of the second width part, the handle is slidably sleeved on the first width part, the holding part has a circular cross-sectional shape, comprises a pair of symmetrical arc segments and a straight line segment connected between the pair of arc segments, and the arc segments are curved towards the outside of the holding part.

[0008] In some embodiments, the first width part and the second width part are connected in up and down, and the rod frame is in the shape of a convex letter without bottom.

[0009] In some embodiments, the holding part is integrally formed, and the arc segment and the straight segment are smoothly connected.

[0010] In some embodiments, the plane where the holding part is located is perpendicular to the plane where the rod frame is located.

[0011] In some embodiments, the rod frame is formed by a single hot-rolled steel pipe.

[0012] In some embodiments, the lower ends of the second width part on both sides are extruded to have a flat cross-sectional shape.

[0013] In some embodiments, the handle further comprises a pair of sleeve parts which are parallel to each other, and the pair of sleeve parts are respectively slidably sleeved on both sides of the first width part, and the holding part is connected between the pair of sleeve parts.

[0014] In some embodiments, a control pull rod is rotatably connected between the pair of sleeve parts, and the control pull rod comprises a crossbar part which is matched with the holding part in shape, and the crossbar part is fitted into the holding part when the control pull rod is rotated upward to the maximum angle.

[0015] In some embodiments, a limiting groove is formed in the lower edge of the outer wall of the holding part, and the crossbar part of the control pull rod is fitted into the limiting groove when the control pull rod is rotated upward to the maximum angle.

[0016] The utility model also provides a mower which comprises a main body, a grass collecting hopper and the above-mentioned handrail assembly, the grass collecting hopper is detachably connected to the rear of the main body, the lower ends of the second width part on both sides are rotatably connected to the rear of the main body, and the width of the second width part is greater than the width of the grass collecting hopper.

[0017] Compared with the prior art, the utility model has the following beneficial effects due to the use of the above technical scheme:

[0018] In view of the use pain point of the commonly used handrail on the large-size hand-held self-propelled mower in the prior art, the utility model adopts the rod frame which is integrally formed in the shape of a door-shaped letter with the width being gathered from bottom to top and the holding part which is in the shape of a circle with the middle part being a straight segment and the two sides being arc segments, thereby reducing the width of the holding part which can be selected on the handle, and the user can achieve the purpose of comfort and labor saving without adjusting the holding position of the hands, and the utility model has good ergonomic design performance. Compared with the handrail with a split structure main frame, the utility model also has the advantage of high overall structural strength, and it is more convenient for the user to pass through the middle of the handrail from the top of the mower to directly take, place and replace the grass collecting hopper. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the perspective view of the first embodiment of the mower provided by the utility model.

[0020] Figure 2 Figure 1 is a schematic diagram of a handrail assembly rotatably connected to a machine body to form four different angle clamping angles in the embodiment one of the lawn mower according to the present application.

[0021] Figure 3 Figure 2 is a perspective view of the handrail assembly in the embodiment one of the lawn mower according to the present application.

[0022] Figure 4 Figure 3 is an exploded view of the handrail assembly after removing the tension clamp in the embodiment one of the lawn mower according to the present application.

[0023] Figure 5 Figure 4 is a top view of the handrail assembly in the embodiment one of the lawn mower according to the present application.

[0024] Figure 6 Figure 5 is a right view of the handrail assembly in the embodiment one of the lawn mower according to the present application.

[0025] Figure 7 Figure 6 is a right view of the handrail assembly when the control pull rod is turned up to the maximum angle and the crossbar part is embedded in the limiting groove in the embodiment one of the lawn mower according to the present application.

[0026] In the figure: 1, pole frame; 2, handle; 3, holding part; 4, first width part; 5, second width part; 6, arc segment; 7, straight line segment; 8, sleeve part; 9, control pull rod; 10, crossbar part; 11, limiting groove; 12, machine body; 13, grass collecting hopper; 15, power assembly; 16, movement assembly; 17, cutting assembly; 18, power source; 19, height adjustment handle; 20, roller; 21, chassis; 22, hopper handle; 23, tension clamp; 24, cutting safety; 25, ignition switch; 26, starting pull rope. DETAILED DESCRIPTION

[0027] The content of the present application will be further described in detail below in combination with specific embodiments:

[0028] Figures 1 to 7 The embodiment one of the lawn mower according to the present application is disclosed.

[0029] In combination with Figure 1 and Figure 2, embodiment one is a hand-held self-propelled double cutterbar mower, which comprises a machine body 12 and a handrail assembly, the machine body 12 comprises a power assembly 15, a movement assembly 16 and a cutting assembly 17, the power assembly 15 comprises a power source 18, the power source 18 is a gasoline engine, the movement assembly 16 comprises a height adjustment handle 19 and a plurality of rollers 20, and the cutting assembly 17 comprises a chassis 21, the chassis 21 is downwardly open and internally provided with a plurality of cutting knives, the power assembly 15 is respectively drivingly connected with the plurality of rollers 20 and the plurality of cutting knives for respectively driving the plurality of rollers 20 and the cutting knives to rotate, the plurality of rollers 20 are synchronously liftable on the machine body 12 for driving the machine body 12 to move and adjusting the height of the machine body 12 and the mowing height thereof through the height adjustment handle 19, the plurality of cutting knives are high-speed rotating for cutting the grass on the lawn into pieces which are collected into the opening below the chassis 21, and a grass collecting hopper 13 is detachably connected to the rear of the machine body 12 for selectively collecting the cut grass in the mowing operation, the grass collecting hopper 13 is provided with a hopper handle 22 for a user to hold for taking and replacing the grass collecting hopper 13.

[0030] In combination Figures 1 to 7 , the handrail assembly comprises a rod frame 1 and a handle 2, the handle 2 comprises a holding portion 3, the rod frame 1 is in the shape of a door character and is formed by a single hot-rolled steel pipe, the length direction of the rod frame 1 is provided with a first width portion 4 at the upper end and a second width portion 5 at the lower end, the second width portion 5 has a width similar to that of the machine body 12, the first width portion 4 has a width smaller than that of the second width portion 5, and the second width portion 5 has a width greater than that of the grass collecting hopper 13, the handle 2 is slidably sleeved on the first width portion 4, wherein the hot-rolled steel pipe has the advantages of low cost, easy processing and strength meeting the standard, the first width portion 4 smaller than the second width portion 5 makes the width of the top of the rod frame 1 constricted and also reduces the width of the optional holding portion of the handle 2, the rod frame 1 in the shape of a door character and the second width portion 5 having a width greater than that of the grass collecting hopper 13 enable the user to directly take and replace the grass collecting hopper 13 from above the machine through the middle of the handrail, the first width portion 4 and the second width portion 5 are connected in sequence, the rod frame 1 is in the shape of a convex character without a bottom, the holding portion 3 has a circular cross-sectional shape, which comprises a pair of mutually symmetrical arc segments 6 and a straight segment 7 connected between the pair of arc segments 6, the arc segments 6 are curved towards the outside of the holding portion 3, the holding portion 3 is integrally formed, and the arc segments 6 and the straight segment 7 are smoothly connected, wherein the straight segment 7 at the middle is used for a user to hold with one hand for pushing and pulling, and the pair of arc segments 6 at both sides are used for the user to hold with both hands for pushing and pulling, the arrangement of the straight segment 7 and the arc segments 6 further reduces the width of the optional holding portion of the handle 2, and the user can achieve comfortable and labor-saving purpose without adjusting the holding position of the hands when holding the handle 2, the arrangement of the holding portion 3 in the circular cross-sectional shape improves the comfort of the user holding the handle 2, and the arrangement of the arc segments 6 curved towards the outside and the smooth connection of the arc segments 6 and the straight segment 7 further improves the comfort of the user holding the handle 2;

[0031] All parts of the grip 3 are located on the same plane, and all parts of the rod 1 are located on the same plane. The two planes are perpendicular to each other. The handle 2 also includes a pair of parallel sleeve parts 8. The pair of sleeve parts 8 are slidably fitted onto both sides of the first width part 4. The grip 3 is connected between the pair of sleeve parts 8. The grip 3 and the rod 1 are arranged perpendicular to each other. When the user applies force perpendicular to the plane where the grip 3 is located, the grip 3 can smoothly slide up and down with the sleeve parts 8. An elastic mechanism is provided between the sleeve parts 8 and the first width part 4. The elastic mechanism is... The cable and other devices are connected to the power unit 15 to control the rotation speed of the roller 20, i.e. the movement speed of the main body 12, according to the sliding amount of the sleeve part 8. The greater the walking speed when the user holds the handle 2 and pushes, the greater the pushing force applied to the handle 2, the greater the sliding amount of the sleeve part 8, and the greater the movement speed of the main body 12. This achieves the effect that the user's walking speed and the movement speed of the main body 12 are always consistent, realizing the self-propelled function of the lawnmower. After the user releases the handle 2, the handle 2 moves upward and returns to its original position under the elastic force of the elastic mechanism.

[0032] The lower ends of the two sides of the second width portion 5 are rotatably connected to the rear sides of the main body 12, so that the armrest assembly and the main body 12 can form a shape like... Figure 2 The four different angles shown in A, B, C, and D (the angles here are the angles between the plane where the rod 1 is located and the horizontal plane) are 131.5°, 122.5°, 90°, and 5° respectively. The first three angles are used for the user to adjust the distance from the main body 12 and the height of the grip part 3. The last angle is used to fold the armrest assembly and the main body 12 for easy vertical storage. The second width part 5 is provided with elastic clips 23 on both sides to switch the fixed state and the movable state of the armrest assembly and the main body 12. The lower ends of both sides of the second width part 5 are extruded to have a flat cross-sectional shape, which facilitates the rotatable connection between the lower ends of both sides of the second width part 5 and the rear sides of the main body 12, as well as the installation and fixation of the elastic clips 23 on itself.

[0033] A pair of sleeve parts 8 rotatably connected with control pull rod 9, control pull rod 9 includes horizontal rod part 10, horizontal rod part 10 and holding part 3 shape fit, control pull rod 9 upward rotation to the maximum angle horizontal rod part 10 holding part 3, holding part 3 outer wall lower along set up limit slot 11, control pull rod 9 upward rotation to the maximum angle horizontal rod part 10 embed limit slot 11, limit slot 11 control pull rod 9 setting makes user convenient to judge control pull rod 9 rotation to place, convenient operation and the appearance is beautiful, control pull rod 9 is cutting switch, cutting switch also through pull line etc. Device is connected to power assembly 15, for switching cutting knife rotation switch state, handrail assembly is also provided with cutting insurance 24 and fire switch 25, cutting insurance 24 is used for switching cutting switch locking state and active state, fire switch 25 is used for controlling the fire of gasoline engine, gasoline engine is controlled starting by starting pull rope 26 on itself.

[0034] In the above embodiment and other embodiments of the present application, the power source 18 can also use a battery and a motor, the pole frame 1 can also be provided with third, fourth, fifth and other width parts between the first width part 4 and the second width part 5, and the width of each width part decreases from bottom to top. The pole frame 1 is formed by a single pipe or rod and is not limited to a hot-rolled steel pipe. Its processability and strength meet the use requirements. On the basis of the same material, the overall structural strength of the door-shaped integrated pole frame 1 is greater than that of the upper and lower split pole frame 1, and its two sides can better resist lateral external force and are not easy to loosen and deform.

[0035] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable persons skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A handrail assembly comprising a pole carrier (1) and a handle (2), said handle (2) comprising a grip portion (3), characterized in that: The rod frame (1) is shaped like a door, and is formed by a single pipe or rod, and has a first width part (4) and a second width part (5) at the upper and lower ends of the length direction, respectively, the first width part (4) is smaller than the second width part (5), the handle (2) is slidably sleeved on the first width part (4), the gripping part (3) has a circular cross-sectional shape, and includes a pair of symmetrical arc segments (6) and a straight line segment (7) connected between the arc segments (6), and the arc segments (6) are curved towards the outside of the gripping part (3).

2. The handrail assembly of claim 1, wherein: The first width part (4) and the second width part (5) are connected in sequence, and the rod frame (1) is shaped like a convex character without a bottom.

3. The handrail assembly of claim 1, wherein: The gripping part (3) is integrally formed, and the arc segments (6) and the straight line segment (7) are smoothly connected.

4. The handrail assembly of claim 1, wherein: The plane of the gripping part (3) is perpendicular to the plane of the rod frame (1).

5. The handrail assembly of claim 1, wherein: The rod frame (1) is formed by a single hot-rolled steel pipe.

6. The handrail assembly of claim 5, wherein: The lower ends of the second width part (5) on both sides are extruded to have a flat cross-sectional shape.

7. The handrail assembly of claim 1, wherein: The handle (2) further includes a pair of sleeve parts (8) parallel to each other, and the sleeve parts (8) are slidably sleeved on both sides of the first width part (4), and the gripping part (3) is connected between the sleeve parts (8).

8. The handrail assembly of claim 7, wherein: A control pull rod (9) is rotatably connected between the sleeve parts (8), and the control pull rod (9) includes a crossbar part (10) which is matched with the gripping part (3), and the crossbar part (10) is attached to the gripping part (3) when the control pull rod (9) is rotated upward to the maximum angle.

9. The handrail assembly of claim 8, wherein: A limiting groove (11) is formed in the lower wall of the gripping part (3), and the crossbar part (10) is embedded in the limiting groove (11) when the control pull rod (9) is rotated upward to the maximum angle.

10. Lawn mower comprising a body (12) and a grass collector (13) which is detachably connected to the rear of the body (12), characterized in that: The second width part (5) is rotatably connected to the rear of the fuselage body (12) on both sides, and the second width part (5) is wider than the grass hopper (13).

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