Accelerator cable structure of tractor and tractor
By using hand throttle and foot throttle cables connected to the pull rod separately in the tractor throttle cable structure, and through the clearance fit between the cable baffle and the limiting plate, the aging problem caused by extrusion and bending in the traditional cable structure is solved, thus improving the durability of the cable.
Patent Information
- Application Number
- CN202520341049.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-28
AI Technical Summary
In the traditional tractor throttle cable structure, the hand throttle and foot throttle cables are fixed to the engine cable rocker arm at the same time, which makes the cables prone to aging, cracking or even breaking after repeated reciprocating motion.
Design a tractor throttle cable structure, wherein the hand throttle cable and the foot throttle cable are connected to the hand throttle lever and the foot throttle lever respectively, and are connected by a gap fit between the cable baffle and the limiting plate to avoid power transmission. The power transmission path is separated by the idle stroke to prevent the cable from being squeezed and bent.
It effectively prevents premature aging and failure of the hand throttle and foot throttle cables due to compression and bending, thus extending the service life of the cables.
Smart Images
Figure CN223594292U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tractors, and in particular to a throttle cable structure for a tractor and the tractor itself. Background Technology
[0002] In traditional throttle cable designs, both the hand throttle cable and the foot throttle cable are fixed to the engine cable rocker arm. When the hand throttle cable is tightened, the foot throttle cable is compressed due to the rocker arm's movement. However, since the foot accelerator is not pressed at this time, the foot throttle cable cannot counteract this movement, causing it to bend and deform under pressure. Similarly, when the foot accelerator is engaged but the hand throttle is not, the hand throttle cable will also bend and deform under pressure. Repeated cycles often lead to cable aging, cracking, and even breakage, a problem that has drawn significant market complaints. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a throttle cable structure for a tractor and a tractor, so as to solve the above-mentioned problem.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A throttle cable structure for a tractor, comprising: a hand throttle cable, a foot throttle cable, a hand throttle lever, a foot throttle lever, a fixing plate, a cable baffle, and an engine throttle cable rocker arm; the hand throttle cable and the foot throttle cable are respectively connected to the hand throttle lever and the foot throttle lever, the hand throttle cable, the foot throttle cable, the hand throttle lever, and the foot throttle lever are all mounted on the fixing plate, the end of the foot throttle lever away from the foot throttle cable is connected to the engine throttle cable rocker arm, the foot throttle lever is fixedly connected to the cable baffle, and the hand throttle lever is clearance-fitted to the cable baffle.
[0005] The beneficial effects of this utility model are as follows: The hand throttle cable facilitates the transfer of power to the engine throttle cable rocker arm by pulling the cable baffle through the hand throttle lever and the foot throttle lever. During this process, the foot throttle lever is fixedly connected to the cable baffle to achieve power transmission. However, the foot throttle lever utilizes its internal free travel to prevent the power from the hand throttle cable from being transferred to the foot throttle cable, thus avoiding premature aging and failure caused by compression and bending of the foot throttle cable. Similarly, during the process of the foot throttle cable transferring power to the engine throttle cable rocker arm through the foot throttle lever, the hand throttle lever and the cable baffle are connected with a clearance fit, which facilitates the sliding of the cable baffle on the hand throttle lever, thereby preventing the hand throttle cable from being pulled and avoiding premature aging and failure caused by compression and bending of the hand throttle cable.
[0006] Based on the above technical solution, the present invention can be further improved as follows.
[0007] Furthermore, the fixing plate is installed on the engine housing, and a first limiting plate and a second limiting plate are provided on the side wall of the fixing plate. The hand throttle cable and the foot throttle cable are both connected to the second limiting plate, and the hand throttle lever and the foot throttle lever are both connected to the first limiting plate.
[0008] The beneficial effects of adopting the above-mentioned further solution are: the first limiting plate helps to provide support for the displacement of the hand throttle lever and foot throttle lever while avoiding circumferential limitation; the second limiting plate helps to provide support for the hand throttle cable and foot throttle cable.
[0009] Furthermore, the hand throttle lever is a rod-shaped structure that passes through the first limiting plate and the pull cable baffle with a gap, and a limiting plate is provided at the end of the hand throttle lever away from the hand throttle pull cable.
[0010] The beneficial effect of adopting the above-mentioned further solution is that the hand throttle lever gap passes through the first limiting plate and the cable baffle, which is conducive to transmitting the power of the hand throttle cable to the cable baffle, thereby realizing the drive of the engine throttle cable rocker arm.
[0011] Furthermore, under the pulling force of the hand throttle cable, the limiting plate abuts against the cable baffle.
[0012] The beneficial effect of adopting the above-mentioned further solution is that the limiting plate abuts against the cable baffle, which is conducive to the limiting plate pulling the cable baffle under the action of the hand throttle cable pull force, thereby driving the engine throttle cable rocker arm.
[0013] Furthermore, a throttle cable sleeve is fitted over the throttle cable, and the throttle cable sleeve is installed on the second limiting plate.
[0014] The beneficial effect of adopting the above-mentioned further solution is that the hand throttle cable sleeve helps to prevent the hand throttle cable from being worn and broken by the second limit plate.
[0015] Furthermore, the accelerator pedal lever includes: an accelerator pedal sleeve, an accelerator pedal slide rod, and a cover, wherein the cover is connected to one end of the accelerator pedal sleeve, and the accelerator pedal slide rod is movably disposed inside the accelerator pedal sleeve and the cover.
[0016] The beneficial effects of adopting the above-mentioned further solution are: the foot accelerator sleeve helps to provide a certain amount of free travel for the displacement of the foot accelerator slide rod, thereby avoiding mutual interference between the hand accelerator cable and the foot accelerator cable; the sleeve helps to block the end of the foot accelerator sleeve away from the engine accelerator cable rocker arm, preventing the foot accelerator slide rod from sliding out of the foot accelerator sleeve.
[0017] Furthermore, the foot throttle cable is adapted to pass through the cover and connect to the foot throttle slide bar.
[0018] The beneficial effect of adopting the above-mentioned further solution is that it facilitates the transmission of power from the accelerator cable to the accelerator slide rod, thereby allowing the accelerator slide rod to slide within the accelerator sleeve.
[0019] Furthermore, the end of the foot throttle sleeve away from the cover is connected to the engine throttle cable rocker arm, the foot throttle sleeve passes through the cable baffle with an interference fit, and the foot throttle sleeve passes through the first limiting plate with a gap.
[0020] The beneficial effects of adopting the above-mentioned further solution are as follows: the interference fit of the foot accelerator sleeve through the cable baffle is conducive to the transmission of power to the foot accelerator sleeve through the cable baffle when the hand accelerator cable is pulled, and then to the engine accelerator cable rocker arm; the gap of the foot accelerator sleeve passing through the first limiting plate is conducive to the avoidance of the first limiting plate circumferentially limiting the foot accelerator sleeve when the foot accelerator cable is pulled, and thus the power is smoothly transmitted to the engine accelerator cable rocker arm.
[0021] Furthermore, a foot accelerator cable sleeve is provided with a gap on the foot accelerator cable, and the foot accelerator cable sleeve is installed on the second limiting plate.
[0022] The beneficial effect of adopting the above-mentioned further solution is that the foot accelerator cable sleeve helps to prevent the foot accelerator cable from being worn and broken by the second limit plate.
[0023] A tractor, comprising the throttle cable structure of the aforementioned tractor. Attached Figure Description
[0024] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;
[0025] Figure 2 This is an enlarged schematic diagram of the overall structure provided for an embodiment of the present utility model.
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 1. Hand throttle cable; 2. Foot throttle cable; 3. Hand throttle lever; 4. Foot throttle lever; 5. Fixing plate; 6. Cable baffle; 7. Engine throttle cable rocker arm; 11. Hand throttle cable sleeve; 21. Foot throttle cable sleeve; 31. Limiting plate; 41. Foot throttle sleeve; 42. Foot throttle slide bar; 43. Seal; 51. First limiting plate; 52. Second limiting plate. Detailed Implementation
[0028] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0029] like Figure 1 and Figure 2 As shown, a throttle cable structure for a tractor includes: a hand throttle cable 1, a foot throttle cable 2, a hand throttle lever 3, a foot throttle lever 4, a fixing plate 5, a cable baffle 6, and an engine throttle cable rocker arm 7. The hand throttle cable 1 and the foot throttle cable 2 are respectively connected to the hand throttle lever 3 and the foot throttle lever 4. The hand throttle cable 1, the foot throttle cable 2, the hand throttle lever 3, and the foot throttle lever 4 are all mounted on the fixing plate 5. The end of the foot throttle lever 4 away from the foot throttle cable 2 is connected to the engine throttle cable rocker arm 7. The foot throttle lever 4 is fixedly connected to the cable baffle 6, and the hand throttle lever 3 is clearance-fitted to the cable baffle 6.
[0030] The beneficial effects of this utility model are as follows: The hand throttle cable facilitates the transfer of power to the engine throttle cable rocker arm by pulling the cable baffle through the hand throttle lever and the foot throttle lever. During this process, the foot throttle lever is fixedly connected to the cable baffle to achieve power transmission. However, the foot throttle lever utilizes its internal free travel to prevent the power from the hand throttle cable from being transferred to the foot throttle cable, thus avoiding premature aging and failure caused by compression and bending of the foot throttle cable. Similarly, during the process of the foot throttle cable transferring power to the engine throttle cable rocker arm through the foot throttle lever, the hand throttle lever and the cable baffle are connected with a clearance fit, which facilitates the sliding of the cable baffle on the hand throttle lever, thereby preventing the hand throttle cable from being pulled and avoiding premature aging and failure caused by compression and bending of the hand throttle cable.
[0031] Preferred, such as Figure 2 As shown, the fixing plate 5 is installed on the engine housing, and a first limiting plate 51 and a second limiting plate 52 are provided on the side wall of the fixing plate 5. The hand throttle cable 1 and the foot throttle cable 2 are both connected to the second limiting plate 52, and the hand throttle lever 3 and the foot throttle lever 4 are both connected to the first limiting plate 51.
[0032] The advantages of adopting the above-mentioned preferred solution are: the first limiting plate helps to support the displacement of the hand throttle lever and foot throttle lever while avoiding circumferential restriction; the second limiting plate helps to support the hand throttle cable and foot throttle cable.
[0033] Preferred, such as Figure 2 As shown, the hand throttle lever 3 is a rod-shaped structure that passes through the first limiting plate 51 and the pull cable baffle 6 with a gap, and a limiting plate 31 is provided at the end of the hand throttle lever 3 away from the hand throttle pull cable 1.
[0034] The beneficial effect of adopting the above-mentioned preferred solution is that the hand throttle lever gap passes through the first limiting plate and the cable baffle, which is conducive to transmitting the power of the hand throttle cable to the cable baffle, thereby realizing the drive of the engine throttle cable rocker arm.
[0035] Preferably, under the pulling force of the hand throttle cable 1, the limiting plate 31 abuts against the cable baffle 6.
[0036] The beneficial effect of adopting the above preferred solution is that the limiting plate abuts against the cable baffle, which is conducive to the limiting plate pulling the cable baffle under the pulling force of the hand throttle cable 1, thereby driving the engine throttle cable rocker arm.
[0037] Preferred, such as Figure 2 As shown, a hand throttle cable sleeve 11 is fitted on the hand throttle cable 1 with a gap, and the hand throttle cable sleeve 11 is installed on the second limiting plate 52.
[0038] It should be noted that "gap sleeve" means that the relative displacement between the hand throttle cable sleeve 11 and the hand throttle cable 1 is smooth, that is, the hand throttle cable 1 can be smoothly pulled within the hand throttle cable sleeve 11.
[0039] The advantages of adopting the above-mentioned preferred solution are: the hand throttle cable sleeve helps to prevent the hand throttle cable from being worn and broken by the second limiting plate.
[0040] Preferred, such as Figure 2 As shown, the foot accelerator lever 4 includes: foot accelerator sleeve 41, foot accelerator slide rod 42 and sealing sleeve 43. The sealing sleeve 43 is connected to one end of the foot accelerator sleeve 41, and the foot accelerator slide rod 42 is movably disposed inside the foot accelerator sleeve 41 and the sealing sleeve 43.
[0041] The advantages of adopting the above-mentioned preferred solution are: the foot accelerator sleeve helps to provide a certain free travel for the displacement of the foot accelerator slide rod, thereby avoiding mutual interference between the hand accelerator cable and the foot accelerator cable; the sleeve helps to block the end of the foot accelerator sleeve away from the engine accelerator cable rocker arm, preventing the foot accelerator slide rod from sliding out of the foot accelerator sleeve.
[0042] Preferred, such as Figure 2 As shown, the foot accelerator cable 2 is adapted to pass through the cover 43 and is connected to the foot accelerator slide bar 42.
[0043] The advantages of adopting the above-mentioned preferred solution are: it facilitates the transmission of power from the accelerator cable to the accelerator lever, thereby allowing the accelerator lever to slide within the accelerator sleeve.
[0044] Preferred, such as Figure 2As shown, the end of the foot throttle sleeve 41 away from the cover 43 is connected to the engine throttle cable rocker arm 7. The foot throttle sleeve 41 passes through the cable baffle 6 with an interference fit, and the foot throttle sleeve 41 passes through the first limiting plate 51 with a gap.
[0045] The advantages of adopting the above-mentioned preferred solution are: the interference fit of the foot accelerator sleeve through the cable baffle is beneficial to the transmission of power to the foot accelerator sleeve through the cable baffle when the hand accelerator cable is pulled, and then to the engine accelerator cable rocker arm; the gap of the foot accelerator sleeve passing through the first limiting plate is beneficial to the avoidance of the first limiting plate circumferentially limiting the foot accelerator sleeve when the foot accelerator cable is pulled, and thus the power is smoothly transmitted to the engine accelerator cable rocker arm.
[0046] Preferred, such as Figure 2 As shown, a foot accelerator cable sleeve 21 is fitted on the foot accelerator cable 2 with a gap, and the foot accelerator cable sleeve 21 is installed on the second limiting plate 52.
[0047] It should be noted that "gap sleeve" means that the relative displacement between the foot accelerator cable sleeve 21 and the foot accelerator cable 2 is smooth, that is, the foot accelerator cable 2 can be smoothly pulled within the foot accelerator cable sleeve 21.
[0048] The advantages of adopting the above preferred solution are: the foot accelerator cable sleeve helps to prevent the foot accelerator cable from being worn and broken by the second limiting plate.
[0049] A tractor, comprising the throttle cable structure of the aforementioned tractor.
[0050] The working process of this utility model is described below:
[0051] like Figure 1 and Figure 2 As shown, when the hand throttle cable 1 is tightened, the hand throttle lever 3 moves under the action of the hand throttle cable 1, thereby causing the limiting plate 31 at the end of the hand throttle lever 3 to move the cable baffle 6, which in turn causes the foot throttle sleeve 41, which is interference-fitted with the cable baffle 6, to move synchronously, and finally drive the engine throttle cable rocker arm 7 to move, thus realizing the function of the throttle. In this process, because the foot throttle slide rod 42 can slide freely in the foot throttle sleeve 41, the foot throttle cable 2 will not move with the movement of the foot throttle sleeve 41. This achieves the separation of the foot throttle cable 2 when the hand throttle cable 1 is activated.
[0052] When the foot throttle cable 2 is tightened, the foot throttle slide rod 42 moves within the foot throttle sleeve 41 until it is blocked by the sleeve 43. At this point, the foot throttle lever 4 will move together with the foot throttle cable 2, thereby moving the engine throttle cable rocker arm 7 and achieving the function of the throttle. During this process, although the cable baffle 6 will move with the foot throttle sleeve 41, the hand throttle lever 3 will not move with the cable baffle 6 because the cable baffle 6 and the hand throttle lever 3 are in clearance fit. This achieves the separation of the hand throttle cable 1 when the foot throttle cable 2 is activated.
[0053] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0056] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A throttle cable structure for a tractor, characterized in that, include: Hand throttle cable (1), foot throttle cable (2), hand throttle lever (3), foot throttle lever (4), fixing plate (5), cable baffle (6), and engine throttle cable rocker arm (7); The hand throttle cable (1) and the foot throttle cable (2) are respectively connected to the hand throttle lever (3) and the foot throttle lever (4). The hand throttle cable (1), the foot throttle cable (2), the hand throttle lever (3) and the foot throttle lever (4) are all mounted on the fixing plate (5). The end of the foot throttle lever (4) away from the foot throttle cable (2) is connected to the engine throttle cable rocker arm (7). The foot throttle lever (4) is fixedly connected to the cable baffle (6). The hand throttle lever (3) is clearance-fitted to the cable baffle (6).
2. The throttle cable structure for a tractor according to claim 1, characterized in that, The fixing plate (5) is installed on the engine housing. A first limiting plate (51) and a second limiting plate (52) are provided on the side wall of the fixing plate (5). The hand throttle cable (1) and the foot throttle cable (2) are both connected to the second limiting plate (52). The hand throttle lever (3) and the foot throttle lever (4) are both connected to the first limiting plate (51).
3. The throttle cable structure for a tractor according to claim 2, characterized in that, The hand throttle lever (3) is a rod-shaped structure that passes through the first limiting plate (51) and the pull cable baffle (6) with a gap. A limiting plate (31) is provided at the end of the hand throttle lever (3) away from the hand throttle pull cable (1).
4. The throttle cable structure for a tractor according to claim 3, characterized in that, Under the pulling force of the hand throttle cable (1), the limiting plate (31) abuts against the cable baffle (6).
5. The throttle cable structure for a tractor according to claim 2, characterized in that, A hand throttle cable sleeve (11) is fitted on the hand throttle cable (1) with a gap, and the hand throttle cable sleeve (11) is installed on the second limiting plate (52).
6. The throttle cable structure for a tractor according to claim 2, characterized in that, The foot accelerator lever (4) includes: foot accelerator sleeve (41), foot accelerator slide rod (42) and cover (43). The cover (43) is connected to one end of the foot accelerator sleeve (41), and the foot accelerator slide rod (42) is movably disposed inside the foot accelerator sleeve (41) and the cover (43).
7. The throttle cable structure for a tractor according to claim 6, characterized in that, The foot throttle cable (2) is adapted to pass through the cover (43) and is connected to the foot throttle slide bar (42).
8. The throttle cable structure for a tractor according to claim 6, characterized in that, The end of the foot throttle sleeve (41) away from the cover (43) is connected to the engine throttle cable rocker arm (7). The foot throttle sleeve (41) passes through the cable baffle (6) with an interference fit. The foot throttle sleeve (41) passes through the first limiting plate (51) with a gap.
9. The throttle cable structure for a tractor according to claim 2, characterized in that, A foot accelerator cable sleeve (21) is fitted on the foot accelerator cable (2) with a gap, and the foot accelerator cable sleeve (21) is installed on the second limiting plate (52).
10. A tractor, characterized in that, The throttle cable structure of the tractor as described in any one of claims 1-9 above.