Operating rod and mower

Abstract

The utility model relates to an operating rod and a mower, and the operating rod comprises an operating rod body and a gear box, the outer edge of the section, perpendicular to the length direction, of the operating rod body encloses a first graph, the first graph is in an N-sided shape, and N is larger than or equal to 3; the gear box is provided with a fixing hole, a second pattern is defined by the hole wall face of the fixing hole, and the shape of the second pattern is matched with that of the first pattern; wherein the outer wall surface of the operating rod body is in contact with the hole wall surface of the fixing hole, the outer edge of the cross section, perpendicular to the length direction, of the operating rod body forms a first graph in an enclosing manner, and the first graph is in an N-polygon shape, namely, the operating rod body is in a prism shape, and the operating rod body is clamped in the fixing hole, so that the operating rod body with the structure is convenient to use. The operating rod body is difficult to twist relative to the gear seat in practical application, so that the operating rod body is difficult to wear after being used for a long time, and the conditions of unstable connection and shaking of the gear box caused by increasing of the aperture of the fixing hole can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the lawn mower technical field, concretely relates to an operating rod and lawn mower. BACKGROUND

[0002] With the advancement of agricultural modernization and urbanization, the market demand of lawn mower, as an important tool to improve the efficiency of agricultural production and the level of urban landscaping, is increasing; the operating rod of lawn mower is an important part connecting the blade and the engine, which allows the user to control the speed and direction of the lawn mower on the operating rod, so that the lawn mower can travel and mow on the lawn.

[0003] In the related art, the lawn mower includes an operating rod and a gear box, the gear box is connected to one end of the operating rod along the length direction thereof, wherein the operating rod is usually a circular tube, the gear box has a fixing hole connected with the operating rod, the operating rod is inserted and fixed in the fixing hole, and the connection structure of the operating rod and the gear box will have a torsion force at the connection position, which is easy to wear and tear after long-term use, so that the fixing hole is enlarged, and the gear box is unstable and shakes. SUMMARY

[0004] The primary object of the utility model is to design an operating rod to solve the technical problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: an operating rod suitable for a lawn mower, comprising an operating rod body and a gear box.

[0006] The outer edge of the section perpendicular to the length direction of the operating rod body encloses a first figure, and the first figure is an N-sided polygon, wherein N is greater than or equal to 3.

[0007] The gear box has a fixing hole arranged along the length direction of the operating rod body, and the hole wall surface of the fixing hole encloses a second figure, wherein the shape of the second figure matches the shape of the first figure.

[0008] The operating rod body is inserted into the fixing hole along one end of the length direction thereof and connected with the gear box, and the outer wall surface of the operating rod body is in contact with the hole wall surface of the fixing hole.

[0009] Further, N is equal to 6.

[0010] Further, the gear box comprises a first connecting section and a second connecting section.

[0011] The first connecting section has the fixing hole at one end of the length direction of the operating rod body.

[0012] The second connecting section is connected with one end of the first connecting section away from the operating rod body, and is used for being connected with a grass hitting mechanism.

[0013] The fixing hole is in communication with the mounting hole.

[0014] Further, an outer edge of a section of the first connecting section perpendicular to the length direction of the operating rod body encloses a third figure, and the third figure is matched with the second figure in shape.

[0015] Further, the first connecting section comprises a main body part and a clamping ear part.

[0016] The main body part is connected with the second connecting section.

[0017] The clamping ear part comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are both connected with one end of the main body part away from the second connecting section, and the first clamping plate and the second clamping plate are spaced apart and enclose the fixing hole, and the first clamping plate and the second clamping plate are connected through a locking piece to clamp the operating rod body.

[0018] The fixing hole extends to the main body part and is in communication with the mounting hole.

[0019] Further, at least one of the first clamping plate and the second clamping plate is provided with a limiting hole in an outer wall surface, and the limiting hole is in communication with the fixing hole.

[0020] An outer wall surface of the operating rod body is provided with a connecting hole, and the connecting hole is opposite to the limiting hole.

[0021] The operating rod further comprises a limiting piece, the limiting piece is inserted into the limiting hole and the connecting hole to limit the position of the operating rod body.

[0022] Further, a damping layer is further included, and one end of the operating rod body inserted into the fixing hole is provided with the damping layer.

[0023] Further, an operating handle and a connecting head are further included.

[0024] The connecting head comprises a first connecting head body and a second connecting head body, the first connecting head body is connected with the operating rod body, one end of the second connecting head body is connected with the first connecting head body through a fixing piece, the other end of the second connecting head body is snap-connected with the first connecting head body, and the first connecting head body and the second connecting head body clamp the operating handle.

[0025] Further, the switch handle comprises a hand-holding part, a handle clamping ear part and a control part for mounting a switch.

[0026] The control part is arranged between the hand-holding part and the handle clamping ear part.

[0027] The handle clamping ear part comprises a third clamping plate and a fourth clamping plate, which are arranged in a spaced manner and enclose a handle fixing hole, and the third clamping plate and the fourth clamping plate are connected by a handle locking member to clamp the operating lever body.

[0028] Further, the switch handle comprises a hand-holding part, a handle clamping ear part and a control part for mounting a switch.

[0029] The control part is arranged between the hand-holding part and the handle clamping ear part.

[0030] The handle clamping ear part comprises a third clamping plate and a fourth clamping plate, which are arranged in a spaced manner and enclose a handle fixing hole, and the third clamping plate and the fourth clamping plate are connected by a handle locking member to clamp the operating lever body.

[0031] Further, the switch handle comprises a hand-holding part, a handle clamping ear part and a control part for mounting a switch.

[0032] The strap connecting member is provided with a fixing groove for fixing an electric wire.

[0033] Further, the operating lever body is of a hollow structure, and the inner edge of the cross section perpendicular to the length direction of the operating lever body encloses a fourth figure, and the shape of the fourth figure matches the shape of the first figure.

[0034] The operating lever further comprises a driving mechanism, a transmission lever and a transmission bearing.

[0035] The driving mechanism is connected to the other end of the operating lever body along the length direction thereof relative to the gear box.

[0036] The transmission bearing encloses a fifth figure around the outer edge of the cross section perpendicular to the length direction of the operating lever body, and the shape of the fifth figure matches the shape of the fourth figure, wherein the transmission bearing is connected in the operating lever body, and the outer wall surface of the transmission bearing is in contact with the inner wall surface of the operating lever body.

[0037] The transmission rod is located inside the operating rod body and mates with the bearing hole of the transmission bearing. One end of the transmission rod along its length is connected to the drive mechanism, and the other end passes through the fixing hole and is used to connect to the grass trimming mechanism.

[0038] This utility model also proposes a lawnmower, including a mowing mechanism and an operating lever as described above, wherein the mowing mechanism is connected to the gearbox.

[0039] Compared with the prior art, the beneficial effects of this utility model are as follows: One end of the operating lever body along its length direction is inserted into the fixing hole and connected to the gearbox, and the outer wall surface of the operating lever body is in contact with the hole wall surface of the fixing hole. Since the outer edge of the cross section of the operating lever body perpendicular to its length direction forms a first shape, and the first shape is an N-sided polygon, that is, the operating lever body is prism-shaped, and the operating lever body is snapped into the fixing hole, the operating lever body with this structure is difficult to twist relative to the gear seat in actual application. Therefore, the operating lever body is not easy to wear after long-term use, which can avoid the situation where the diameter of the fixing hole becomes larger, causing the gearbox connection to be unstable and shaking. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0041] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0042] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0043] Figure 4 This is a cross-sectional view of the present invention;

[0044] Figure 5 for Figure 4 Enlarged structural diagram at point C;

[0045] Figure 6 for Figure 4 Enlarged structural diagram at point D;

[0046] Figure 7 This is a schematic diagram of the connector structure of this utility model;

[0047] Figure 8 This is a cross-sectional view of the connector of this utility model;

[0048] Figure 9 This is a schematic diagram of the overall structure of another embodiment of the present invention;

[0049] Figure 10 forFigure 9 Enlarged structural schematic view at C;

[0050] The names of the parts marked in the figure are as follows: 1, operating rod body; 2, gear box; 201, first connecting section; 202, second connecting section; 3, driving mechanism; 4, transmission rod; 5, transmission bearing; 6, clamping ear part; 601, first clamping plate; 602, second clamping plate; 7, operating handle; 8, connecting head; 801, first connecting head body; 802, second connecting head body; 803, clamping tongue; 804, stopper; 9, shoulder strap connecting piece; 10, wire fixing groove; 11, power end connecting head; 12, limiting hole; 13, damping layer; 14, switch handle; 1401, hand holding part; 1402, handle clamping ear part; 1402a, third clamping plate; 1402b, fourth clamping plate; 1403, control part; 1404, handle fixing hole. DETAILED DESCRIPTION

[0051] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0052] Embodiment: Please refer to Figures 1-8 An operating rod suitable for a mower, comprising an operating rod body 1 and a gear box 2; the outer edge of the section perpendicular to the length direction of the operating rod body 1 encloses a first figure, and the first figure is an N-sided polygon, N≥3; the gear box 2 has a fixing hole arranged along the length direction of the operating rod body 1, and the hole wall surface of the fixing hole encloses a second figure, and the shape of the second figure matches the shape of the first figure; in an optional embodiment, the shape of the first figure and the first figure adopts a hexagon, and the edges of the hexagon are perpendicular to the left and right sides of the operating rod body 1, and when left and right swinging force is applied during the mowing operation, the edges are not easy to deform, and the strength is higher, and the bending strength of the hexagon is higher than that of a round pipe; the hexagonal structure is more convenient for positioning, punching and installation; one end of the operating rod body 1 along the length direction is inserted into the fixing hole and connected with the gear box 2, and the outer wall surface of the operating rod body 1 is in contact with the hole wall surface of the fixing hole, and this kind of connection mode can reduce the torsion, avoid the increase of the hole diameter of the fixing hole, and cause unstable connection of the gear box 2 and shaking.

[0053] In an optional embodiment, the gear box 2 comprises a first connecting section 201 and a second connecting section 202, the first connecting section 201 has a fixing hole at one end in the length direction of the operating rod body 1; the second connecting section 202 is connected with the first connecting section 201 at the end away from the operating rod body 1, the second connecting section 202 is used to be connected with the grass striking mechanism, the grass striking mechanism rotates on the second connecting section 202, the second connecting section 202 has a mounting hole, the mounting hole is a circular hole, the mounting hole is used to install a bearing; wherein the fixing hole is communicated with the mounting hole, the grass striking mechanism is connected on the second connecting section 202 and matched with the bearing in the mounting hole, the grass striking mechanism is in transmission connection with the transmission rod 4 described below.

[0054] In an optional embodiment, the first connecting section 201 surrounds a third figure at the outer edge of the section perpendicular to the length direction of the operating rod body 1, the shape of the third figure matches with the shape of the second figure; the edge surface formed by the third figure is convenient for positioning, can better punch the hole, is convenient for installation, and solves the problems that the existing arc surface is easy to be punched off-center and installed incorrectly.

[0055] In an optional embodiment, the first connecting section 201 comprises a main body part and a clamping ear part 6, the main body part is connected with the second connecting section 202, the clamping ear part 6 comprises a first clamping plate 601 and a second clamping plate 602, the first clamping plate 601 and the second clamping plate 602 are both connected with the end of the main body part away from the second connecting section 202, and the first clamping plate 601 and the second clamping plate 602 are arranged at intervals and surround the fixing hole, the first clamping plate 601 and the second clamping plate 602 are connected through a locking piece, the locking piece includes but is not limited to a screw, and the purpose is to be able to clamp the operating rod body 1; wherein the fixing hole extends to the main body part and is communicated with the mounting hole.

[0056] In an optional embodiment, the outer wall surface of at least one of the first clamping plate 601 and the second clamping plate 602 is provided with a limiting hole 12, the limiting hole 12 is communicated with the fixing hole; the outer wall surface of the operating rod body 1 is provided with a connecting hole, the connecting hole is opposite to the limiting hole 12; the operating rod further comprises a limiting piece, the limiting piece is inserted into the limiting hole 12 and the connecting hole, and the limiting piece can be but is not limited to a limiting bolt, and is used to limit the position of the operating rod body 1.

[0057] In an optional embodiment, a damping layer 13 is further included, one end of the operating rod body 1 inserted into the fixing hole is sleeved with the damping layer 13, the damping layer 13 can buffer and dampen, and the damping layer 13 can adopt rubber material or other damping materials commonly used in the field.

[0058] In an optional embodiment, the operating handle 7 and the connecting head 8 are further included. The operating handle 7 is provided with a power switch, which facilitates the control of the operation of the grass striking mechanism. The connecting head 8 includes a first connecting head body 801 and a second connecting head body 802. The first connecting head body 801 is connected with the operating rod body 1. One end of the second connecting head body 802 is connected with the first connecting head body 801 through a fixing member. The other end of the second connecting head body 802 is snap-connected with the first connecting head body 801. The first connecting body 801 and the second connecting body 802 clamp the operating handle 7. The fixing member can be, but is not limited to, a screw. The purpose is to fix the first connecting head body 801 and the second connecting head body 802. The snap connection is convenient to install and saves at least two screws. Preferably, the snap connection includes a clamping tongue 803 and a stopper 804. The clamping tongue 803 is snap-connected with the stopper 804. The clamping tongue 803 is arranged at the end of the first connecting head body 801 away from the screw. The stopper 804 is arranged at the end of the second connecting head body 802 away from the screw. The snap connection makes the first connecting head body 801 and the second connecting head body 802 stably snap-connected and not easy to be loosened.

[0059] In an optional embodiment, the switch handle 14 is further included. The switch handle 14 is formed by two housings that are mutually sleeved on the operating rod body 1. The switch handle 14 includes a hand holding portion 1401, a handle clamping ear portion 1402, and a control portion 1403 for installing a switch. The control portion 1403 is connected between the hand holding portion 1401 and the handle clamping ear portion 1402. The hand holding portion 1401 is a holding position for an operator during operation. The handle clamping ear portion 1402 includes a third clamping plate 1402a and a fourth clamping plate 1402b. The third clamping plate 1402a and the fourth clamping plate 1402b are arranged at intervals and surround a handle fixing hole 1404. The third clamping plate 1402a and the fourth clamping plate 1402b are connected through a handle locking member to clamp the operating rod body 1. The handle locking member includes, but is not limited to, a screw. The purpose is to clamp the operating rod body 1. At least one bolt is screwed at the end of the hand holding portion 1401 away from the control portion 1403 to further fix the switch handle 14. This embodiment provides one kind of holding manner. The operator holds the switch handle 14 to control the direction and conveniently operates the switch to control the operation of the grass striking mechanism.

[0060] In an optional embodiment, the strap connecting member 9 is further included. The number of the strap connecting members 9 is at least two. The strap connecting members 9 are connected on the operating rod body 1. Adjacent two strap connecting members 9 are arranged at intervals. The strap connecting members 9 have ring holes for connecting a strap. The strap connecting members 9 are provided with fixing grooves for fixing electric wires.

[0061] In an alternative embodiment, the operating rod body 1 is a hollow structure, that is, the operating rod body 1 is provided with a cavity, and the lengthwise ends of the operating rod body 1 are provided with openings communicating with the cavity, the inner edge of the cross section of the operating rod body 1 perpendicular to the length direction thereof forms a fourth figure, and the shape of the fourth figure matches the shape of the first figure;

[0062] The operating rod further comprises a driving mechanism 3, a transmission rod 4, and a transmission bearing 5. The driving mechanism 3 is connected to the other end of the operating rod body 1 along the length direction thereof relative to the gear box 2. The outer edge of the cross section of the transmission bearing 5 perpendicular to the length direction of the operating rod body 1 forms a fifth figure, and the shape of the fifth figure matches the shape of the fourth figure. The transmission bearing 5 is connected in the operating rod body 1, and the outer wall surface of the transmission bearing 5 is in contact with the inner wall surface of the operating rod body 1. This structure can prevent the transmission bearing 5 from rotating, and avoid wear and heat generation. The transmission rod 4 is arranged in the operating rod body 1, and is matched with the bearing hole of the transmission bearing 5. One end of the transmission rod 4 along the length direction thereof is in driving connection with the driving mechanism 3, and the other end thereof passes out of the fixing hole and is used for driving connection with the grass cutting mechanism.

[0063] The driving mechanism 3 is installed on a power mechanism mounting body. The power mechanism mounting body is connected with the operating rod body 1 through a power end connecting head 11. The driving mechanism 3 drives the transmission rod 4 to rotate. The transmission rod 4 transmits power, and drives the grass cutting mechanism to rotate.

[0064] In the present application, the transmission bearing 5 is an oil-containing bearing. In addition, the shapes of the first figure, the second figure, the third figure, the fourth figure, and the fifth figure match each other in the sense that the shapes are the same or approximately the same, but the sizes are different. For example, the shapes of the first figure, the second figure, the third figure, the fourth figure, and the fifth figure are all hexagons, but the sizes are different.

[0065] In addition, the present application further proposes a grass cutter, which comprises a grass cutting mechanism and the above-described operating rod. The grass cutting mechanism is connected with the gear box. The grass cutting mechanism comprises a grass cutting piece and a transmission assembly. The grass cutting piece is in driving connection with the transmission rod through the transmission assembly. The transmission assembly drives the grass cutting piece to rotate, so as to perform grass cutting work. The grass cutting piece is a blade or a grass cutting rope. The grass cutting mechanism is a prior art, and will not be described in detail here.

[0066] The working principle of this embodiment is as follows: In use, the first connecting section 201 of the gearbox 2 is connected to the operating rod body 1, and the second connecting section 202 is connected to the mowing mechanism. The drive mechanism 3 drives the transmission rod 4 to rotate, and the transmission rod 4 transmits power to drive the mowing head to rotate, thereby realizing the mowing operation. Among them, one end of the operating rod body 1 along its length direction is inserted into the fixing hole and connected to the gearbox 2, and the outer wall surface of the operating rod body 1 is in contact with the hole wall surface of the fixing hole. Since the outer edge of the cross section of the operating rod body perpendicular to its length direction forms a first shape, and the first shape is an N-sided polygon, that is, the operating rod body is prism-shaped, and the operating rod body is snapped into the fixing hole, the operating rod body with this structure is difficult to twist relative to the gear seat in actual application. Therefore, the operating rod body is not easy to wear after long-term use, which can avoid the diameter of the fixing hole from becoming larger, causing the gearbox connection to be unstable and causing shaking.

[0067] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An operating rod suitable for a mower, comprising an operating rod body (1) and a gear box (2); characterized in that an outer edge of a section perpendicular to a length direction of the operating rod body (1) encloses a first figure, the first figure is a N-sided polygon, N≥3; the gear box (2) has a fixing hole arranged along the length direction of the operating rod body (1), a hole wall surface of the fixing hole encloses a second figure, a shape of the second figure matches a shape of the first figure; wherein an end of the operating rod body (1) along the length direction is inserted into the fixing hole and connected with the gear box (2), and an outer wall surface of the operating rod body (1) is in contact with the hole wall surface of the fixing hole.

2. The operating lever according to claim 1, characterized in that: N＝6。 3. The operating lever according to claim 2, characterized in that: the gear box (2) comprises a first connecting section (201) and a second connecting section (202); the first connecting section (201) has the fixing hole at an end along the length direction of the operating rod body (1); the second connecting section (202) is connected with an end of the first connecting section (201) away from the operating rod body (1), the second connecting section (202) is used for being connected with a grass striking mechanism, the second connecting section (202) has a mounting hole, the mounting hole is a circular hole, and the mounting hole is used for mounting a bearing; wherein the fixing hole is in communication with the mounting hole.

4. The operating lever according to claim 3, characterized in that: an outer edge of a section perpendicular to the length direction of the operating rod body (1) encloses a third figure, a shape of the third figure matches a shape of the second figure.

5. The operating lever according to claim 4, characterized in that: the first connecting section (201) comprises a main body part and a clamping lug part (6); the main body part is connected with the second connecting section (202); the clamping lug part (6) comprises a first clamping plate (601) and a second clamping plate (602), the first clamping plate (601) and the second clamping plate (602) are both connected with an end of the main body part away from the second connecting section (202), the first clamping plate (601) and the second clamping plate (602) are arranged in a spaced manner and enclose the fixing hole, the first clamping plate (601) and the second clamping plate (602) are connected by a locking member to clamp the operating rod body (1); wherein the fixing hole extends to the main body part and is in communication with the mounting hole.

6. The operating lever according to claim 5, characterized in that: an outer wall surface of at least one of the first clamping plate (601) and the second clamping plate (602) is provided with a limiting hole (12), the limiting hole (12) is in communication with the fixing hole; an outer wall surface of the operating rod body (1) is provided with a connecting hole, the connecting hole is opposite to the limiting hole (12); the operating rod further comprises a limiting member, the limiting member passes through the limiting hole (12) and is inserted into the connecting hole to limit the position of the operating rod body (1).

7. The operating lever according to claim 5, characterized in that: a damping layer (13) is further included, an end of the operating rod body (1) inserted into the fixing hole is sleeved with the damping layer (13).

8. The operating lever of claim 1, wherein: an operating handle (7) and a connecting head (8) are further included; The connecting head (8) comprises a first connecting head body (801) connected with the operating lever body (1) and a second connecting head body (802) having one end connected with the first connecting head body (801) through a fixing member and the other end snap-connected with the first connecting head body (801), and the first connecting head body (801) and the second connecting head body (802) clamp the operating handle (7).

9. The operating lever of claim 1, wherein: The switch handle (14) comprises a hand holding part (1401), a handle clamping ear part (1402) and a control part (1403) for installing a switch. The control part (1403) is connected between the hand holding part (1401) and the handle clamping ear part (1402). The handle clamping ear part (1402) comprises a third clamping plate (1402a) and a fourth clamping plate (1402b) which are spaced apart and enclose a handle fixing hole (1404), and the third clamping plate (1402a) and the fourth clamping plate (1402b) are connected through a handle locking member to clamp the operating lever body (1).

10. The operating lever of claim 1, wherein: The number of the back strap connecting members (9) is at least two, and the back strap connecting members (9) are connected to the operating lever body (1) and are spaced apart. The back strap connecting member (9) is provided with a fixing groove (10) for fixing an electric wire.

11. Lever according to any of claims 1-10, characterized in that: The operating lever body (1) has a hollow structure, and the inner edge of the section perpendicular to the length direction of the operating lever body (1) encloses a fourth figure, and the shape of the fourth figure matches the shape of the first figure. The operating lever further comprises a driving mechanism (3), a transmission rod (4) and a transmission bearing (5). The driving mechanism (3) is connected to the other end of the operating lever body (1) along the length direction of the operating lever body (1) relative to the gear box (2), The transmission bearing (5) has an outer edge of the section perpendicular to the length direction of the operating lever body (1) enclosing a fifth figure, and the shape of the fifth figure matches the shape of the fourth figure, wherein the transmission bearing (5) is connected in the operating lever body (1), and the outer wall surface of the transmission bearing (5) is in contact with the inner wall surface of the operating lever body (1). The transmission rod (4) is arranged in the operating lever body (1) and cooperates with the bearing hole of the transmission bearing (5), one end of the transmission rod (4) along the length direction is in transmission connection with the driving mechanism (3), and the other end of the transmission rod (4) passes through the fixing hole and is used for transmission connection with a grass striking mechanism.

12. A lawnmower characterised in that, The grass striking mechanism is connected with the gear box.

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