Movable accelerator control mechanism and tractor
By adopting a movable throttle control mechanism on the tractor, and utilizing a sliding connection and nut locking structure, the reliability problem caused by repeated compression and bending of the throttle cable is solved, achieving a long service life and high reliability operation of the cable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LOVOL HEAVY IND CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-17
AI Technical Summary
In existing tractor fixed throttle control mechanisms, the reliability of the throttle cable decreases due to repeated compression and bending during long-term use.
The movable throttle control mechanism, through a sliding connection and nut locking structure, avoids the complete fixing of the cable to the engine throttle rocker arm, ensuring that the cable can slide relative to the rocker arm and reducing the occurrence of bending.
It improves the service life of the throttle cable and the reliability of the throttle control mechanism, and avoids damage to the cable due to repeated squeezing and bending during long-term use.
Smart Images
Figure CN224130888U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of engine technology, and in particular to a movable throttle control mechanism and a tractor. Background Technology
[0002] The throttle control mechanism is one of the more important mechanisms on a tractor, and its failure can lead to serious accidents such as personal injury.
[0003] Engines meeting China II emission standards have a simple structure and low cost, and there is still significant demand for them in overseas markets. Currently, most China II engines use a fixed throttle control mechanism, such as... Figure 1 As shown, the front ends of the cores of the foot throttle cable 5' and the hand throttle cable 6' of this structure are fixed to the engine throttle rocker arm 1' by the cable fixing seat 2' and the nut 3'.
[0004] When operating the throttle, the throttle rocker arm 1 is driven by either the foot throttle cable 5' or the hand throttle cable 6'. In use, when one cable pulls the throttle rocker arm 1' to the maximum throttle position, the other cable will be compressed and bent. This can cause the throttle cable to be damaged due to repeated compression and bending during long-term use, thus reducing the reliability of the throttle control mechanism. Utility Model Content
[0005] The purpose of this application is to provide a movable throttle control mechanism and tractor that can solve the problem of the throttle cable being squeezed and bent during use, thereby improving the reliability of throttle operation.
[0006] Firstly, the movable throttle control mechanism provided in this application includes an engine throttle rocker arm, a foot throttle cable, and a hand throttle cable.
[0007] The engine throttle rocker arm is provided with a first connector and a second connector, and the front ends of the hand throttle cable and the foot throttle cable pass through the mounting holes of the first connector and the second connector, respectively.
[0008] The hand throttle cable and the first connector are slidably connected, as are the foot throttle cable and the second connector; the front ends of the hand throttle cable and the foot throttle cable are respectively fixedly installed with a first cable fixing seat and a second cable fixing seat;
[0009] When the hand throttle cable or the foot throttle cable is pulled, the first cable fixing seat or the second cable fixing seat can abut against the first connector or the second connector, thereby causing the engine throttle rocker arm to swing.
[0010] In a preferred embodiment, the movable throttle control mechanism further includes a front cable support and a rear cable support.
[0011] The hand throttle cable and the foot throttle cable are each threaded through a sleeve, allowing the hand throttle cable and the foot throttle cable to slide within the sleeve;
[0012] The front end of the sleeve is fixed on the front bracket of the pull wire, and the rear end of the sleeve is fixed on the rear bracket of the pull wire.
[0013] In a preferred embodiment, the portion of the hand throttle cable located between the front cable bracket and the first cable fixing seat, and / or, the portion of the foot throttle cable located between the front cable bracket and the second cable fixing seat includes a sliding section for sliding within the mounting hole.
[0014] In a preferred embodiment, the sliding section is a smooth straight rod.
[0015] In a preferred embodiment, the sliding section is a smooth sleeve covering the outside of the hand throttle cable or the foot throttle cable.
[0016] In a preferred embodiment, the front ends of the hand throttle cable and the foot throttle cable are threaded sections; the first cable fixing seat and the second cable fixing seat adopt a nut locking structure and are threadedly connected to the threaded sections at the front ends of the hand throttle cable and the foot throttle cable, respectively.
[0017] In a preferred embodiment, the maximum radial dimension of the nut locking structure is greater than the diameter of the mounting hole.
[0018] In a preferred embodiment, the nut locking structure consists of two nuts used in a stacked manner.
[0019] In a preferred embodiment, a limiting portion is provided on a section of the sliding segment near the front bracket of the pull wire to limit the sliding position of the sliding segment relative to the mounting hole.
[0020] Secondly, the purpose of this application is to provide a tractor including any of the movable throttle control mechanisms described in any one of the claims;
[0021] The rear end of the hand throttle cable is connected to the hand throttle cable arm, and the foot throttle cable is connected to the foot throttle cable arm.
[0022] Compared with the prior art, this application has the following beneficial effects:
[0023] The throttle cable of the movable throttle control mechanism provided in this application is not completely fixed to the engine throttle rocker arm, but can slide relative to it, thereby avoiding the cable being squeezed and bent, thus improving the service life of the cable and the reliability of the throttle control mechanism. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of a throttle control mechanism in the prior art under operating conditions.
[0026] Figure 2 This is a schematic diagram of the throttle control mechanism provided in the embodiments of this application in its initial state;
[0027] Figure 3 This is a schematic diagram of the throttle control mechanism provided in the embodiments of this application in its use state;
[0028] Figure 4 This is a schematic diagram of the overall connection relationship of the throttle control mechanism provided in this application embodiment when used in a tractor;
[0029] Figure label:
[0030] 1,1'- Engine throttle rocker arm;
[0031] 2-Guide cable holder; 201-First guide cable holder; 202-Second guide cable holder;
[0032] 3, 3' - Connector; 301 - First connector; 302 - Second connector;
[0033] 4 - Front support cable; 5, 5' - Foot throttle cable; 6, 6' - Hand throttle cable;
[0034] 7-Rear support cable; 8-Foot throttle cable arm; 9-Hand throttle cable arm;
[0035] 10 - First sliding segment; 11 - Second sliding segment. Detailed Implementation
[0036] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.
[0037] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.
[0038] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.
[0039] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.
[0040] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.
[0041] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.
[0042] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.
[0043] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.
[0044] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.
[0045] like Figures 2 to 3 As shown, this application embodiment provides a movable throttle control mechanism, including an engine throttle rocker arm 1, a foot throttle cable 5, and a hand throttle cable 6.
[0046] A first connector 301 and a second connector 302 are provided on the engine throttle rocker arm 1. The front ends of the hand throttle cable 6 and the foot throttle cable 5 pass through the mounting holes of the first connector 301 and the second connector 302, respectively.
[0047] The hand throttle cable 6 and the first connector 301, as well as the foot throttle cable 5 and the second connector 302, are slidably connected; the front ends of the hand throttle cable 6 and the foot throttle cable 5 are respectively fixedly installed with the first cable fixing seat 201 and the second cable fixing seat 202.
[0048] When the hand throttle cable 6 or foot throttle cable 5 is pulled, the corresponding cable fixing seat 2 can abut against the corresponding connector 3, thereby causing the engine throttle rocker arm 1 to swing.
[0049] More specifically, it also includes a front cable bracket 4 and a rear cable bracket 7. The hand throttle cable 6 and the foot throttle cable 5 are respectively threaded through a sleeve, so that the hand throttle cable 6 and the foot throttle cable 5 can slide inside the sleeve. The front end of the sleeve is fixed on the front cable bracket 4, and the rear end of the sleeve is fixed on the rear cable bracket 7.
[0050] In this embodiment, the portion of the hand throttle cable 6 located between the front cable bracket 4 and the first cable fixing seat 201, and the portion of the foot throttle cable 5 located between the front cable bracket 4 and the second cable fixing seat 202, include a sliding section for sliding within the mounting hole.
[0051] The sliding section is preferably a smooth straight rod.
[0052] In other alternative embodiments, the sliding section can also be a smooth sleeve covering the outside of the hand throttle cable 6 or the foot throttle cable 5. In short, any structure that allows the sliding section to slide smoothly within the mounting hole is acceptable.
[0053] In actual use, the structure of the smooth section on the hand throttle cable 6 and the foot throttle cable 5 can be the same or different. Alternatively, a smooth section can be set on only one of the cables, as long as it does not affect the sliding of the hand throttle cable 6 and the foot throttle cable 5 within the mounting hole.
[0054] The front ends of the hand throttle cable 6 and the foot throttle cable 5 are threaded sections. The first cable fixing seat 201 and the second cable fixing seat 202 adopt a nut locking structure, which is threadedly connected to the threaded sections of the front ends of the hand throttle cable 6 and the foot throttle cable 5, respectively. The maximum radial dimension of the nut locking structure is larger than the diameter of the mounting hole, preventing it from passing through the mounting hole. Therefore, when the hand throttle cable 6 or the foot throttle cable 5 is pulled, the first cable fixing seat 201 or the second cable fixing seat 202 can abut against the first connecting member 301 or the second connecting member 302, thereby causing the engine throttle rocker arm 1 to swing.
[0055] To achieve a better locking effect, it is preferable to use double nuts stacked together.
[0056] In a preferred embodiment, a limiting part is provided on a section of the sliding segment near the front bracket 4 of the pull wire to limit the sliding position of the sliding segment relative to the mounting hole, and to prevent the sliding segment from coming out of the first connector 301 or the second connector 302, thus affecting its sliding effect.
[0057] Initial state as Figure 2 As shown, both cables are in their natural state without bending.
[0058] Usage status as follows: Figure 3 As shown, when one of the cables is pulled, it abuts against the connector 3 through the cable fixing seat 2, causing the engine throttle rocker arm 1 to be pulled to the high throttle position. The sliding section of the other cable will slide along the mounting hole of the corresponding cable fixing seat 2. This cable will not be squeezed and will not bend.
[0059] Therefore, the throttle cable will not be damaged by repeated compression and bending during long-term use, thus improving the reliability of the movable throttle control mechanism.
[0060] This embodiment also provides a tractor, including the aforementioned movable throttle control mechanism.
[0061] like Figure 4 As shown, when the movable throttle control mechanism is used on a tractor, the rear end of the hand throttle cable 6 is connected to the hand throttle cable arm 9, and the foot throttle cable 5 is connected to the foot throttle cable arm 8.
[0062] When operating the throttle, the foot throttle cable arm 8 or the hand throttle cable arm 9 can be operated, and the engine throttle rocker arm 1 can be driven through the foot throttle cable 5 or the hand throttle cable 6 to achieve throttle operation.
[0063] Its beneficial effects are the same as those of the movable throttle control mechanism, and will not be elaborated here.
[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A movable throttle control mechanism, characterized in that, This includes the engine throttle rocker arm, foot throttle cable, and hand throttle cable; The engine throttle rocker arm is provided with a first connector and a second connector, and the front ends of the hand throttle cable and the foot throttle cable pass through the mounting holes of the first connector and the second connector, respectively. The hand throttle cable and the first connector are slidably connected, as are the foot throttle cable and the second connector; the front ends of the hand throttle cable and the foot throttle cable are respectively fixedly installed with a first cable fixing seat and a second cable fixing seat; When the hand throttle cable or the foot throttle cable is pulled, the first cable fixing seat or the second cable fixing seat can abut against the first connector or the second connector, thereby causing the engine throttle rocker arm to swing.
2. The active throttle control mechanism of claim 1, wherein, It also includes a front support for the cable and a rear support for the cable; The hand throttle cable and the foot throttle cable are each threaded through a sleeve, allowing the hand throttle cable and the foot throttle cable to slide within the sleeve; The front end of the sleeve is fixed on the front bracket of the pull wire, and the rear end of the sleeve is fixed on the rear bracket of the pull wire.
3. The active throttle control mechanism of claim 2, wherein, The portion of the hand throttle cable located between the front cable bracket and the first cable fixing seat, and / or the portion of the foot throttle cable located between the front cable bracket and the second cable fixing seat includes a sliding section for sliding within the mounting hole.
4. The active throttle control mechanism of claim 3, wherein, The sliding section is a smooth straight rod.
5. The active throttle control mechanism of claim 3, wherein, The sliding section is a smooth sleeve covering the outside of the hand throttle cable or the foot throttle cable.
6. The active throttle control mechanism of claim 1, wherein, The front ends of the hand throttle cable and the foot throttle cable are threaded sections; the first cable fixing seat and the second cable fixing seat adopt a nut locking structure and are threadedly connected to the threaded sections at the front ends of the hand throttle cable and the foot throttle cable, respectively.
7. The active throttle control mechanism of claim 6, wherein, The maximum radial dimension of the nut locking structure is greater than the diameter of the mounting hole.
8. The active throttle control mechanism of claim 6, wherein, The nut locking structure consists of two nuts used in a stacked manner.
9. The active throttle control mechanism of claim 3, wherein, A limiting part is provided on the section of the sliding segment near the front bracket of the pull wire to limit the sliding position of the sliding segment relative to the mounting hole.
10. A tractor characterised in that, Includes the movable throttle control mechanism as described in any one of claims 1 to 9; The rear end of the hand throttle cable is connected to the hand throttle cable arm, and the foot throttle cable is connected to the foot throttle cable arm.