Accelerator control mechanism of mini-tiller

Abstract

The utility model provides an accelerator control mechanism of a mini-tiller, and belongs to the technical field of mini-tillers. The mini-tiller accelerator control mechanism solves the problem that hands are sour due to long-time operation of an existing mini-tiller accelerator control mechanism. The accelerator control mechanism of the mini-tiller comprises a fixed seat fixed on the mini-tiller, a rotating seat rotationally arranged in the fixed seat, an operating handle fixedly arranged on the rotating seat and an accelerator inhaul cable, the accelerator inhaul cable comprises a wire pipe and a pull wire arranged in the wire pipe in a penetrating mode, one end, away from an accelerator, of the wire pipe is connected with the fixed seat, and the other end, away from the accelerator, of the wire pipe is connected with the rotating seat. The end, away from the accelerator, of the pull wire is connected with the rotating seat, the rotating seat can drive the pull wire to move in the wire pipe when rotating, and a locking assembly used for positioning the rotating seat rotating in place is arranged between the operating handle and the fixing seat. The locking assembly can fix the rotating base rotating in place to the current position, the accelerator control mechanism does not need to be held all the time, hand soreness is avoided, and operation is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of micro-tiller technology and relates to a throttle control mechanism for a micro-tiller. Background Technology

[0002] Mini tillers are powered by small diesel or gasoline engines and are characterized by their light weight, small size, and simple structure. They are widely applicable to dry land, paddy fields, and orchards in plains, mountains, and hills. Equipped with appropriate implements, they can perform tasks such as pumping water, generating electricity, spraying pesticides, and watering. They can also tow trailers for short-distance transport. Mini tillers can move freely in the fields, making them convenient for users to operate and store. They eliminate the problem of large agricultural machinery being unable to access mountainous fields, making them the best alternative to oxen for farmers.

[0003] The throttle control mechanism of existing mini tillers is located on the handlebar, and the throttle is controlled by manually holding it. Therefore, the throttle control mechanism needs to be held at all times during operation, which is inconvenient and can cause hand fatigue during long-term operation. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a throttle control mechanism for a mini-tiller that is easy to operate.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] The throttle control mechanism of the mini tiller includes a fixed base fixed on the mini tiller, a rotating seat rotatably disposed within the fixed base, an operating handle fixed on the rotating seat, and a throttle cable. The throttle cable includes a conduit and a pull wire passing through the conduit. The end of the conduit away from the throttle is connected to the fixed base, and the end of the pull wire away from the throttle is connected to the rotating seat. When the rotating seat rotates, it can drive the pull wire to move within the conduit. A locking component is provided between the operating handle and the fixed base for positioning the rotating seat in its rotated position.

[0007] The locking component can fix the rotating seat in its current position after it has been rotated, eliminating the need to hold the throttle control mechanism at all times, preventing hand fatigue, and making operation convenient.

[0008] In the throttle control mechanism of the aforementioned micro-tiller, the fixed base has a mounting hole in the middle, and the rotating base is circular and rotatably disposed within the mounting hole; the locking component includes limiting teeth disposed around the fixed base and distributed in a circular pattern, and a locking tongue disposed in the operating handle that engages with the limiting teeth; the operating handle is provided with an unlocking structure for disengaging the locking tongue from the limiting teeth when the rotating base needs to be rotated.

[0009] In order to enable the locking tongue to engage with the limiting teeth, a meshing tooth is provided on the side of the locking tongue facing the limiting teeth. When the meshing tooth engages with the limiting teeth, the locking tongue and the limiting teeth are engaged.

[0010] The rotation centers of each limiting tooth pitch rotating seat are equal, ensuring that the locking tongue can engage with the limiting teeth at any position of the operating handle within the rotation range.

[0011] In the throttle control mechanism of the aforementioned micro-tiller, the operating handle has a guide hole extending along its length, the locking tongue is rotatably located at one end of the guide hole near the rotating seat via a rotating shaft, and the unlocking structure is located inside the guide hole.

[0012] In the throttle control mechanism of the aforementioned micro-tiller, the unlocking structure includes a push rod slidably disposed in a guide hole, a connecting rod with one end hinged to the push rod, and a return spring. The other end of the connecting rod is hinged to the locking tongue. The return spring is used to reset the push rod. When the push rod is in the reset state, the locking tongue engages with the limiting teeth.

[0013] When unlocking is required, press the push rod inward. The push rod drives the connecting rod to move inward, and the connecting rod drives the lock tongue to rotate around the pivot, causing the lock tongue to disengage from the limit teeth. At this time, the rotating seat can be driven to rotate around its rotation center. When the rotation is in place, release the push rod. The push rod will reset under the action of the return spring, causing the lock tongue to engage with the limit teeth again.

[0014] In the throttle control mechanism of the aforementioned micro-tiller, the inner wall of the guide hole away from the rotating seat is provided with a limiting step and a limiting stop opposite to the limiting step. The end of the push rod away from the rotating seat has a limiting part located between the limiting step and the limiting stop. The reset spring is sleeved on the push rod and located between the limiting part and the limiting step.

[0015] The limiting step and the limiting stop edge limit the limiting part, ensuring the axial position of the push rod. Under the action of the return spring, the limiting part abuts against the limiting stop edge, at which time the locking tongue and the limiting tooth are engaged.

[0016] When the limit part is pressed, the return spring is compressed, the push rod moves inward along the guide hole, causing the locking tongue to swing and disengage from the limit tooth.

[0017] In the throttle control mechanism of the aforementioned micro-tiller, the fixed base has an annular groove surrounding the rotating seat, and the connection between the fixed base and the cable conduit has a through hole communicating with the annular groove. The pull cable passes through the through hole and then wraps around the annular groove.

[0018] When the rotating seat rotates counterclockwise, it can drive the pull cable to move along the length of the cable tube, increasing the throttle opening; when the rotating seat rotates clockwise, the pull cable can be reset (the throttle cable reset is controlled by its own structure, which is the existing structure), decreasing the throttle opening.

[0019] In the throttle control mechanism of the aforementioned mini-tiller, the mini-tiller is equipped with a steering wheel, and a control panel is located below the steering wheel. The throttle control mechanism is located on the control panel. Positioning the throttle control mechanism below the steering wheel facilitates operation by the driver and passengers.

[0020] Compared with existing technologies, the throttle control mechanism of this mini tiller has the following advantages: the locking component can fix the rotating seat in its current position, eliminating the need to hold the throttle control mechanism at all times, avoiding hand fatigue, and making operation convenient; the throttle control mechanism is located below the steering wheel, which is beneficial for the driver and passengers to operate. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the micro-tiller provided by this utility model.

[0022] Figure 2 This is a schematic diagram of the throttle control mechanism.

[0023] Figure 3 This is a cross-sectional view of the throttle control mechanism.

[0024] Figure 4 yes Figure 3 Enlarged schematic diagram of the middle part of the structure.

[0025] In the diagram, 1. Fixed seat; 11. Limiting tooth; 12. Annular groove; 2. Rotary seat; 3. Operating handle; 31. Guide hole; 32. Limiting step; 33. Limiting stop; 4. Throttle cable; 41. Cable conduit; 42. Cable pull; 5. Locking tongue; 51. Rotating shaft; 61. Push rod; 611. Limiting part; 62. Connecting rod; 63. Return spring; 7. Steering wheel; 8. Control panel. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] like Figure 2 The throttle control mechanism of the mini-tiller shown includes a fixed base 1 fixed to the mini-tiller, a rotating base 2 rotatably disposed within the fixed base 1, an operating handle 3 fixed to the rotating base 2, and a throttle cable 4. For ease of installation, the fixed base 1 is bolted to the mini-tiller. The fixed base 1 has a mounting hole in the center, and the rotating base 2 is circular and rotatably disposed within the mounting hole. Figure 3 The rotating seat 2 is coaxially provided with a rotating shaft 51 in the middle. The rotating shaft 51 is fixed to the micro-tiller by bolts. The rotating shaft 51 is fixed relative to the fixed seat 1. The rotating seat 2 is sleeved on the rotating shaft 51 and can rotate around the rotating shaft 51.

[0028] like Figure 2 As shown, the throttle cable 4 includes a conduit 41 and a pull wire 42 passing through the conduit 41. The end of the conduit 41 away from the throttle is connected to the fixed base 1, and the end of the pull wire 42 away from the throttle is connected to the rotating base 2. The fixed base 1 has an annular groove 12 surrounding the rotating base 2. The connection between the fixed base 1 and the conduit 41 has a through hole communicating with the annular groove 12. The pull wire 42 passes through the through hole and wraps around the annular groove 12. When the rotating base 2 rotates, it can drive the pull wire 42 to move within the conduit 41. A locking component is provided between the operating handle 3 and the fixed base 1 to position the rotating base 2 when it is rotated into place. The locking component can fix the rotating base 2 in its current position, eliminating the need to hold the throttle control mechanism at all times, avoiding hand fatigue, and making operation convenient.

[0029] like Figure 2 As shown, when the rotating seat 2 rotates counterclockwise, it can drive the pull cable 42 to move along the length of the cable tube 41, thereby increasing the throttle opening; when the rotating seat 2 rotates clockwise, the pull cable 42 can be reset (the throttle cable 42 is reset by its own structure, which is the existing structure), thereby decreasing the throttle opening.

[0030] like Figure 3 and Figure 4 As shown, the locking assembly includes circumferentially distributed limiting teeth 11 located around the periphery of the fixed base 1 and a locking tongue 5 located within the operating handle 3 that engages with the limiting teeth 11. The operating handle 3 has an unlocking structure for disengaging the locking tongue 5 from the limiting teeth 11 when the rotating base 2 needs to be rotated. To enable the locking tongue 5 to engage with the limiting teeth 11, a meshing tooth is provided on the side of the locking tongue 5 facing the limiting teeth 11. When the meshing tooth engages with the limiting teeth 11, the locking tongue 5 is engaged with the limiting teeth 11. Each limiting tooth 11 is equidistant from the rotation center of the rotating base 2, ensuring that the locking tongue 5 can engage with the limiting teeth 11 at any position within the rotation range of the operating handle 3.

[0031] like Figure 4 As shown, the operating handle 3 extends radially along the rotating base 2, and the operating handle 3 has a guide hole 31 extending along its length direction. The locking tongue 5 is rotatably disposed at one end of the guide hole 31 near the rotating base 2 via the rotating shaft 51, and the unlocking structure is disposed in the guide hole 31.

[0032] like Figure 4 As shown, the unlocking structure includes a push rod 61 that is slidably disposed in the guide hole 31, a connecting rod 62 with one end hinged to the push rod 61, and a return spring 63. The other end of the connecting rod 62 is hinged to the locking tongue 5. The return spring 63 is used to reset the push rod 61. When the push rod 61 is in the reset state, the locking tongue 5 engages with the limiting tooth 11.

[0033] When unlocking is required, press the push rod 61 inward. The push rod 61 drives the connecting rod 62 to move inward. The connecting rod 62 drives the locking tongue 5 to rotate around the rotating shaft 51, causing the locking tongue 5 to disengage from the limiting tooth 11. At this time, the rotating seat 2 can be driven to rotate around its rotation center. When the rotation is in place, release the push rod 61. The push rod 61 is reset under the action of the return spring 63, causing the locking tongue 5 to engage with the limiting tooth 11 again.

[0034] like Figure 4 As shown, the inner wall of the guide hole 31 away from the rotating seat 2 is provided with a limiting step 32 and a limiting stop 33 opposite to the limiting step 32. The end of the push rod 61 away from the rotating seat 2 has a limiting part 611 located between the limiting step 32 and the limiting stop 33. The reset spring 63 is sleeved on the push rod 61 and located between the limiting part 611 and the limiting step 32.

[0035] The limiting step 32 and the limiting stop 33 limit the limiting part 611, ensuring the axial position of the push rod 61. Under the action of the return spring 63, the limiting part 611 abuts against the limiting stop 33, at which time the locking tongue 5 engages with the limiting tooth 11. When the limiting part 611 is pressed down, the return spring 63 is compressed, and the push rod 61 moves inward along the guide hole 31, causing the locking tongue 5 to swing and disengage from the limiting tooth 11.

[0036] In this embodiment, as Figure 1 As shown, the mini-tiller is equipped with a steering wheel 7, and a control panel 8 is located below the steering wheel 7. The throttle control mechanism is located on the control panel 8. The location of the throttle control mechanism below the steering wheel 7 facilitates operation by the driver and passengers.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A throttle control mechanism for a mini-tiller, characterized by, The utility model relates to a micro tiller, which comprises a fixed seat (1) fixed on the micro tiller, a rotating seat (2) rotatably arranged in the fixed seat (1), an operation handle (3) and a throttle cable (4) fixed on the rotating seat (2), the throttle cable (4) comprises a wire tube (41) and a pull wire (42) arranged in the wire tube (41), one end of the wire tube (41) away from the throttle is connected with the fixed seat (1), one end of the pull wire (42) away from the throttle is connected with the rotating seat (2), the rotating seat (2) can drive the pull wire (42) to move in the wire tube (41) when rotating, and a locking assembly is arranged between the operation handle (3) and the fixed seat (1) to position the rotating seat (2) when rotating to a position.

2. The throttle control mechanism of the mini-tiller according to claim 1, wherein The middle part of the fixed seat (1) is provided with a mounting hole, and the rotating seat (2) is circular and rotatably arranged in the mounting hole; the locking assembly comprises limiting teeth (11) arranged on the periphery of the fixed seat (1) and circularly distributed, and a locking tongue (5) arranged in the operation handle (3) and capable of forming a clamping action with the limiting teeth (11); and the operation handle (3) is provided with an unlocking structure for making the locking tongue (5) disengage from the limiting teeth (11) when the rotating seat (2) needs to be rotated.

3. The throttle control mechanism of the mini-tiller according to claim 2, wherein The operation handle (3) is provided with a guide hole (31) extending along the length direction thereof, the locking tongue (5) is rotatably arranged in one end of the guide hole (31) close to the rotating seat (2) through a rotating shaft (51), and the unlocking structure is arranged in the guide hole (31).

4. The throttle control mechanism of the mini-tiller according to claim 3, wherein The unlocking structure comprises a push rod (61) slidably arranged in the guide hole (31), a connecting rod (62) hingedly connected with one end of the push rod (61), and a reset spring (63), one end of the connecting rod (62) is hingedly connected with the locking tongue (5), and the reset spring (63) is used for resetting the push rod (61), when the push rod (61) is in a reset state, the locking tongue (5) is clamped with the limiting teeth (11).

5. The throttle control mechanism of the mini-tiller according to claim 4, wherein The inner wall of one end of the guide hole (31) away from the rotating seat (2) is provided with a limiting step (32) and a limiting stop edge (33) arranged opposite to the limiting step (32), one end of the push rod (61) away from the rotating seat (2) is provided with a limiting portion (611) located between the limiting step (32) and the limiting stop edge (33), and the reset spring (63) is sleeved on the push rod (61) and located between the limiting portion (611) and the limiting step (32).

6. The throttle control mechanism for a mini-tiller according to claim 1, wherein The fixed seat (1) is provided with an annular groove (12) surrounding the rotating seat (2), the fixed seat (1) is provided with a through hole communicating with the annular groove (12) at the connection position with the wire tube (41), and the pull wire (42) is arranged in the annular groove (12) after passing through the through hole.

7. The throttle control mechanism for a mini-tiller according to claim 1, wherein A steering wheel (7) is arranged on the micro tiller, a control panel (8) is arranged below the steering wheel (7), and the throttle control mechanism is arranged on the control panel (8).

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