Agricultural machinery handle box movable flexible shaft sealing cable passage structure, handle box and cab
Patent Information
- Application Number
- CN202521791950.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-22
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-08-22
AI Technical Summary
[0003]现代收割机驾驶室扶手箱集成了电器系统，通过电器线束传达至指令机构，但扶手箱电器线束需穿过驾驶室，而目前国内收割机驾驶室扶手箱电器线束通过包裹在软轴内形成软轴线缆21，如图1所示，软轴线缆21穿过驾驶室的后壁3或者驾驶室的地板31，通过锥形橡胶密封圈4进行密封，为了保持线束布置的美观性，对扶手箱线束的长度具有一定要求，因此在扶手箱随座椅前后和上下移动的过程中，扶手箱的电器线束会被拉扯，从锥形橡胶密封圈4的过线孔中来回穿动，驾驶室的整体密封性无法得到保证
[0008]本实用新型的有益效果是：本实用新型的农用机械扶手箱活动软轴密封过线结构，通过设置具有一定倾斜角度的过线管，能够将扶手箱上的软轴线缆穿过过线管并与过线管紧配合，软轴线缆在扶手箱前后上下移动过程中不会与过线管产生摩擦，解决了扶手箱线束磨损的问题。
Smart Images
Figure CN224702991U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of agricultural machinery, specifically to a sealing and wiring structure for the movable flexible shaft of an agricultural machinery handrail box, the handrail box, and the driver's cab. Background Technology
[0002] The combine harvester cab is the operating center of the harvester, where all core operations and controls are concentrated, providing the driver with a safe, comfortable, and reliable working environment. The armrest box within the cab is a key component, integrating ergonomic support, core operating controls, and storage functions. Currently, the combine harvester cab armrest box is integrated into the main seat and can move forward, backward, and up and down with the seat.
[0003] The electrical system is integrated into the armrest box of a modern harvester cab, transmitting signals to the command mechanism via electrical wiring harnesses. However, these electrical wiring harnesses need to pass through the cab. Currently, in China, the electrical wiring harnesses in the armrest box of harvester cabs are typically formed by wrapping them inside a flexible shaft to create a flexible shaft cable 21. Figure 1 As shown, the flexible shaft cable 21 passes through the rear wall 3 or floor 31 of the cab and is sealed by a conical rubber sealing ring 4. To maintain the aesthetics of the wiring harness arrangement, the length of the armrest box wiring harness is subject to certain requirements. Therefore, as the armrest box moves back and forth and up and down with the seat, the electrical wiring harness is pulled and passes back and forth through the wire hole of the conical rubber sealing ring 4, compromising the overall sealing of the cab. Furthermore, with increased usage frequency, the friction between the wiring harness and the conical rubber sealing ring 4 increases, causing wear on the outer rubber ring of the wiring harness and the surface of the conical rubber sealing ring 4, reducing service life and compromising the cab's sealing performance.
[0004] The existing method of cable routing in the combine harvester cab armrest box is as follows: Figure 1 and Figure 2 As shown, by opening wire passage holes that match the conical rubber sealing ring 4 at different positions on the floor 31 or rear wall 3 of the cab, the wire passage requirements of the flexible shaft cable 21 on the armrest box are met. However, the space between the armrest box and the rear wall 3 of the cab is limited. Due to the characteristics of the flexible shaft cable 21 itself, it cannot be bent excessively. This wire passage method damages the overall sealing of the cab and increases the wear frequency of the wire harness and sealing ring.
[0005] Therefore, solving the problem of wire wear in the handrail box of the combine harvester cab is an urgent issue that needs to be addressed. Utility Model Content
[0006] In order to solve one or more technical problems existing in the prior art, this utility model provides a sealing and wiring structure for the movable flexible shaft of an agricultural machinery handrail box, a handrail box, and a driver's cab.
[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: This utility model provides a sealing and wire-passing structure for the movable flexible shaft of an agricultural machinery handle box, including a fixed plate and a wire-passing tube that are injection molded into an integral structure. The wire-passing tube is arranged obliquely through the fixed plate, and the two ends of the wire-passing tube are respectively located on both sides of the fixed plate. The outer side walls of the two ends of the wire-passing tube are fitted and fixed to the two sides of the fixed plate as an integral unit.
[0008] The beneficial effects of this utility model are: the movable flexible shaft sealing cable passage structure of the agricultural machinery handrail box of this utility model, by setting a cable passage tube with a certain inclination angle, can pass the flexible shaft cable on the handrail box through the cable passage tube and fit tightly with the cable passage tube. The flexible shaft cable will not rub against the cable passage tube during the back-and-forth and up-and-down movement of the handrail box, thus solving the problem of cable harness wear in the handrail box.
[0009] Based on the above technical solution, the present invention can be further improved as follows.
[0010] Furthermore, the conduit is a circular tube, the vertical distance between the center points of both ends of the conduit and the fixing plate is a, the inner diameter of the conduit is b, and the thickness of the conduit is c, wherein b / 2≤a≤(b / 2+c).
[0011] The beneficial effects of adopting the above-mentioned further solution are: by reasonably setting the arrangement between the conduit and the fixing plate, it is convenient for injection molding and avoids excessive friction between the flexible shaft cable and the edge of the conduit or the fixing plate during use.
[0012] Furthermore, the conduit passes through the center of the fixing plate.
[0013] Furthermore, the fixing plate has multiple fixing holes near its peripheral edge.
[0014] The beneficial effect of adopting the above-mentioned further solution is that by opening multiple fixing holes on the fixing plate, it is convenient to stably fix the fixing plate to the cab floor.
[0015] Furthermore, the fixing plate is a rectangular plate, and each of the four corners of the fixing plate is provided with a fixing hole.
[0016] Furthermore, the four corners of the fixing plate have a rounded transition structure.
[0017] The advantage of adopting the above-mentioned further solution is that it avoids scratching workers during the assembly of the fixing plate.
[0018] Furthermore, both ends of the conduit do not extend beyond the peripheral edge of the fixing plate.
[0019] This utility model also provides a handrail box, including the movable flexible shaft sealing cable passage structure of the agricultural machinery handrail box as described above, and also includes a handrail box body. A flexible shaft cable passes through the bottom wall of the handrail box body, and the flexible shaft cable passes through the cable passage tube and is tightly fitted with the cable passage tube.
[0020] The beneficial effects of this utility model are: in the armrest box of this utility model, the flexible shaft cable will not rub against the conduit during the back and forth movement of the armrest box, thus avoiding wear on the flexible shaft cable.
[0021] This utility model also provides a driver's cab, including the armrest box as described above, and a driver's cab body. The armrest box body is mounted on the rear wall of the driver's cab body and is movable back and forth. The fixing plate is fixed to the floor of the driver's cab body and is located at the lower left or lower right of the armrest box body. One end of the cable conduit passes through the floor and the central axis of the cable conduit is perpendicular to the back and forth movement direction of the armrest box body.
[0022] The beneficial effects of this utility model are: the cab of this utility model can solve the problem of wear and tear on the armrest box cable during movement, and can also improve the overall sealing of the cab.
[0023] Furthermore, the armrest box body is installed on the right side of the main seat in the cab body, the movable flexible shaft sealing cable passage structure of the agricultural machinery armrest box is located on the rear side of the main seat, and the flexible shaft cable between the fixing plate and the armrest box body is arranged in an arc.
[0024] The beneficial effects of adopting the above-mentioned further solution are as follows: by installing the sealed cable-passing structure of the movable flexible shaft of the agricultural machinery armrest box on the rear side of the main seat of the cab, the flexible shaft cable is hidden, making the cab layout more reasonable; the flexible shaft cable between the fixing plate and the armrest box body is arranged in an arc shape. When the armrest box body moves back and forth, the flexible shaft cable is clamped by the cable-passing tube, so that the flexible shaft cable will not rub against the cable-passing tube. Moreover, the arc-shaped arrangement of the flexible shaft cable also provides a certain margin for the movement of the armrest box body, avoiding the armrest box body pulling the flexible shaft cable during the movement. Attached Figure Description
[0025] Figure 1 A schematic diagram showing the current usage status of the existing armrest box wiring structure; Figure 2 A side view schematic diagram showing the existing armrest box wiring structure and the wiring structure of this utility model in use; Figure 3 This is a three-dimensional structural diagram of the wire-passing structure of this utility model; Figure 4 This is a three-dimensional structural diagram of the wire-passing structure of this utility model in use.
[0026] The attached diagram lists the components represented by each number as follows: 1. Fixing plate; 11. Cable guide tube; 12. Fixing hole; 2. Armrest box body; 21. Flexible shaft cable; 3. Rear wall; 31. Floor; 4. Conical rubber sealing ring. Detailed Implementation
[0027] 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.
[0028] Example 1 like Figures 2-4 As shown in the figure, a sealing and cable-passing structure for the movable flexible shaft of an agricultural machinery handle box in this embodiment includes a fixed plate 1 and a cable-passing tube 11, which are injection molded into an integral structure. The cable-passing tube 11 is arranged to pass through the fixed plate 1 at an angle. The two ends of the cable-passing tube 11 are respectively located on both sides of the fixed plate 1. The outer side walls of the two ends of the cable-passing tube 11 are attached and fixed to the two sides of the fixed plate 1 as an integral unit.
[0029] like Figure 3 As shown, in a preferred embodiment, the cable guide tube 11 is a circular tube, the vertical distance between the center points of both ends of the cable guide tube 11 and the fixing plate 1 is 'a', the inner diameter of the cable guide tube 11 is 'b', and the thickness of the cable guide tube 11 is 'c', where b / 2 ≤ a ≤ (b / 2 + c). By rationally setting the arrangement between the cable guide tube and the fixing plate, injection molding is facilitated, and excessive friction between the flexible shaft cable and the edge of the cable guide tube or the fixing plate is avoided during use.
[0030] like Figure 3 As shown, preferably, the conduit 11 passes through the center of the fixing plate 1.
[0031] like Figure 3 and Figure 4 As shown, in one specific embodiment, the fixing plate 1 has multiple fixing holes 12 near its peripheral edge. By creating multiple fixing holes on the fixing plate, stable fixing between the fixing plate and the cab floor is facilitated.
[0032] Optionally, the fixing plate 1 in this embodiment is a rectangular plate, and each of the four corners of the fixing plate 1 is provided with a fixing hole 12.
[0033] Alternatively, the four corners of the fixing plate 1 may have rounded transition structures to prevent workers from being scratched during the assembly of the fixing plate.
[0034] like Figure 3As shown, preferably, both ends of the conduit 11 do not extend beyond the peripheral edge of the fixing plate 1. In this embodiment, the fixing plate 1 and the conduit 11 can be made of plastic and integrally injection molded.
[0035] The sealing cable passage structure of the movable flexible shaft in the agricultural machinery handrail box of this embodiment, by setting a cable passage tube with a certain tilt angle, can pass the flexible shaft cable on the handrail box through the cable passage tube and fit tightly with the cable passage tube. The flexible shaft cable will not rub against the cable passage tube during the back-and-forth and up-and-down movement of the handrail box, thus solving the problem of cable harness wear in the handrail box.
[0036] Example 2 Based on Embodiment 1, this embodiment also provides a handrail box, including the movable flexible shaft sealing cable passage structure of the agricultural machinery handrail box as described above, and also includes a handrail box body 2. A flexible shaft cable 21 is passed through the bottom wall of the handrail box body 2. The flexible shaft cable 21 passes through the cable passage tube 11 and is tightly fitted with the cable passage tube 11.
[0037] In this embodiment, the armrest box does not rub against the conduit during the forward and backward movement of the armrest box, thus avoiding wear on the armrest cable.
[0038] Example 3 Based on Embodiment 2, this embodiment also provides a driver's cab, including the armrest box as described above, and a driver's cab body. The armrest box body 2 is mounted on the rear wall 3 of the driver's cab body and can move back and forth. The fixing plate 1 is fixed on the floor 31 of the driver's cab body and is located at the lower left or lower right of the armrest box body 2. One end of the cable conduit 11 passes through the lower part of the floor 31, and the central axis of the cable conduit 11 is perpendicular to the back and forth movement direction of the armrest box body 2.
[0039] A further preferred embodiment of this solution is as follows: Figure 2 and Figure 4 As shown, the armrest box body 2 is installed on the right side of the main seat in the cab body. The movable flexible shaft sealing cable passage structure of the agricultural machinery armrest box is located on the rear side of the main seat, while the movable flexible shaft sealing cable passage structure of the agricultural machinery armrest box is located on the left side of the armrest box body 2. The flexible shaft cable 21 between the fixing plate 1 and the armrest box body 2 is arranged in an arc shape. By installing the movable flexible shaft sealing cable passage structure of the agricultural machinery armrest box on the rear side of the main seat in the cab body, the flexible shaft cable is hidden, and the cab layout is more reasonable. The curved arrangement of the flexible shaft cable between the fixing plate and the armrest box body ensures that the flexible shaft cable is clamped by the cable passage tube during the forward and backward movement of the armrest box body, preventing friction between the flexible shaft cable and the cable passage tube. Moreover, the arc-shaped arrangement of the flexible shaft cable also provides a certain margin for the movement of the armrest box body, avoiding the armrest box body pulling on the flexible shaft cable during movement.
[0040] In this embodiment, the cable guide tube 11 and the fixing plate 1 are arranged at a certain angle. After the flexible shaft cable 21 passes through the cable guide tube 11, the arc-shaped arrangement of the flexible shaft cable 21 can adapt to the position change of the armrest box body 2 at any time. After the flexible shaft cable 21 fills the cable guide tube 11, it is clamped so that the flexible shaft does not rub against the cable guide tube 11 during the back-to-forth and up-and-down movement of the armrest box body.
[0041] A preferred embodiment of this solution is as follows: Figure 2 As shown, the flexible shaft cable 21 extends downward from the bottom of the armrest box body 2, first extending vertically for a portion, and then extending in a curve for another portion. The part of the floor 31 of the driver's cab used to install the mounting plate 1 can adopt an inclined structure.
[0042] The cab in this embodiment can solve the problem of wear and tear on the armrest box cable during movement, and also improve the overall sealing of the cab.
[0043] In the description of this utility model, it should be understood that the terms "center", "length", "thickness", "upper", "lower", "front", "rear", "left", "right", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0044] In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0045] 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 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.
[0046] 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.
[0047] 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.
[0048] 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 sealing and wiring structure for the movable flexible shaft of an agricultural machinery handle box, characterized in that, The device includes a fixed plate and a cable guide tube that are injection molded into a single structure. The cable guide tube is arranged obliquely through the fixed plate, and its two ends are located on both sides of the fixed plate. The outer walls of the two ends of the cable guide tube are fitted and fixed to the two sides of the fixed plate as a single unit.
2. The sealing and wiring structure for the movable flexible shaft of the agricultural machinery handle box according to claim 1, characterized in that, The conduit is a circular tube, the vertical distance between the center points of both ends of the conduit and the fixed plate is a, the inner diameter of the conduit is b, and the thickness of the conduit is c, where b / 2≤a≤(b / 2+c).
3. The sealing and wiring structure for the movable flexible shaft of the agricultural machinery handle box according to claim 1, characterized in that, The conduit passes through the center of the fixed plate.
4. The sealing and wiring structure for the movable flexible shaft of the agricultural machinery handle box according to claim 1, characterized in that, The fixing plate has multiple fixing holes near its peripheral edge.
5. The sealing and wiring structure for the movable flexible shaft of the agricultural machinery handle box according to claim 1, characterized in that, The fixing plate is a rectangular plate, and each of the four corners of the fixing plate has a fixing hole.
6. The sealing and wiring structure for the movable flexible shaft of the agricultural machinery handle box according to claim 5, characterized in that, The four corners of the fixing plate have a rounded transition structure.
7. The sealing and wiring structure for the movable flexible shaft of the agricultural machinery handle box according to claim 1, characterized in that, The two ends of the conduit do not extend beyond the peripheral edge of the fixing plate.
8. An armrest box, characterized in that, The agricultural machinery handrail box movable flexible shaft sealing cable passage structure according to any one of claims 1 to 7 further includes a handrail box body, on which a flexible shaft cable passes through the bottom wall of the handrail box body, the flexible shaft cable passes through the cable passage tube and is tightly fitted with the cable passage tube.
9. The driver's cab, characterized in that, The system includes the armrest box as described in any one of claims 8, and also includes a cab body. The armrest box body is mounted on the rear wall of the cab body and is movable back and forth. The fixing plate is fixed to the floor of the cab body and is located at the lower left or lower right of the armrest box body. The central axis of the cable conduit is perpendicular to the back and forth movement direction of the armrest box body.
10. The cab according to claim 9, characterized in that, The armrest box body is installed on the right side of the main seat in the cab body. The movable flexible shaft sealing cable passage structure of the agricultural machinery armrest box is located on the rear side of the main seat. The flexible shaft cable between the fixing plate and the armrest box body is arranged in an arc.