Foldable guide pole device

Abstract

The utility model provides a kind of foldable guide rod device, including middle guide rod welding, and the left and right sides of middle guide rod welding are equipped with hose and side guide rod, and one end of hose is hinged with middle guide rod welding through first hinged shaft, and hose can rotate up and down relative to middle guide rod welding around first hinged shaft, and the other end of hose is hinged with side guide rod through second hinged shaft, and side guide rod can rotate up and down relative to hose around second hinged shaft;Side guide rod downside is also fixed with mounting support assembly.Adopting the utility model, by setting hose between middle guide rod welding and side guide rod, hose can be curved with the folding of cutting table, avoid hard contact and structural interference;At the same time, the hinged structure of hose two ends reliably releases deformation stress, avoids the folding situation of hose, guarantees the service life of hose.

Description

Technical Field

[0001] This utility model relates to the field of cutting table guide rod technology, specifically to a foldable guide rod device. Background Technology

[0002] The guide rod device is installed above the header and includes a left guide rod assembly, a right guide rod assembly, and a middle guide rod assembly. The middle guide rod assembly is fixed to the upper crossbeam at the rear of the header. Its main function is to stop the stalks being cut and fed in at a certain height. When the root of the cut stalk is grabbed by the feed wheel of the header and fed in, the stalk will tilt forward, thus feeding the middle part of the stalk longitudinally into the machine from the root in a uniform forward tilt. The left and right guide rod assemblies are fixed to the folded sections on both sides of the header and connected to the middle guide rod assembly. They span the entire cutting width of the header. Their function is to hold the stalks being cut at a certain height. After the stalk root is cut, it is grabbed by the feed wheel and fed into the machine along the feed channel, so that the stalks on both sides are fed longitudinally into the machine from the root in a uniform forward tilt. In summary, the guide rod device ensures the orderly feeding of stems, thereby guaranteeing the quality of stem chopping.

[0003] Because the width of the cutter head exceeds 3 meters, it is generally designed as a foldable structure to meet road clearance requirements. Currently, such cutters on the market typically fold upwards at 90° from both sides. Correspondingly, the guide rod must bend along with the cutter head's folding, but deformation is not allowed, otherwise breakage and failure will occur. In this situation, the design of the folding mechanism for an all-steel guide rod is complex, and its component movement path is not completely synchronized with the cutter head's folding path. During folding, it is prone to interference with other working parts, leading to excessive stress or even deformation and breakage. Furthermore, the guide rod cannot be entirely replaced with a flexible material; otherwise, its rigidity will be insufficient to support the stalk and ensure orderly stalk feeding. Utility Model Content

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: This utility model provides a foldable guide rod device, including a central guide rod welded together. Flexible hoses and side guide rods are provided on both the left and right sides of the central guide rod welded together. One end of the flexible hose is welded and hinged to the central guide rod via a first hinge axis, allowing the flexible hose to rotate up and down relative to the central guide rod welded together around the first hinge axis. The other end of the flexible hose is hinged to the side guide rod via a second hinge axis, allowing the side guide rod to rotate up and down relative to the flexible hose around the second hinge axis. A mounting support assembly is also fixed to the lower side of the side guide rod.

[0005] The beneficial effects of this utility model are: This invention utilizes a flexible hose welded between the central guide rod and the side guide rods. The hose can bend as the cutter head folds, and the bent portion of the hose will not make hard contact with the cutter head, thus avoiding structural interference. Simultaneously, the hinged structures at both ends of the hose reliably release deformation stress, preventing the hose from kinking and ensuring its service life. During operation, both ends of the hose are restrained by their hinged shafts, ensuring the hose remains taut and reliably supports the stem, guaranteeing orderly stem feeding.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, a first connecting tube is fixed to one end of the hose, and a first hinge shaft is located on the first connecting tube; a second connecting tube is fixed to the other end of the hose, and a second hinge shaft is located on the second connecting tube.

[0008] The hinge shaft is installed by connecting the first and second connecting pipes, which improves the installation strength of the hinge shaft, avoids wear on the hose during operation, and extends its service life.

[0009] Furthermore, a cable is connected between the first connecting pipe and the second connecting pipe, and the cable is located inside the flexible hose.

[0010] When the hose is subjected to straw pressure, the cable is in a straight state, which can provide elastic support to the inside of the cartilage, improve the strength of the hose, reduce the amount of deformation of the hose, and prevent the hose from being stretched or fatigued and broken after long-term use; at the same time, it is easy to reliably support the stalks and ensure the orderly feeding of the stalks.

[0011] Furthermore, one end of the first connecting tube extends into the hose and is slidably connected to a pull plate, one end of the pull plate extends out of the first connecting tube and is connected to a pull cable, and an elastic element is connected inside the first connecting tube, the elastic element being connected to the pull plate.

[0012] When the hose is stretched and deformed, the tension of the cable drives the pull plate to overcome the elastic force of the elastic element, thereby using the elastic force of the elastic element to provide elastic support for the inner wall of the hose and reduce the amount of hose deformation. When the external force on the hose disappears, the elastic force of the elastic element drives the pull plate to return to its original position, thereby keeping the cable taut and applying axial compressive stress to the hose, promoting the hose's deformation recovery and extending the service life of the hose.

[0013] Furthermore, the elastic element is a spring, which is sleeved on the pull plate. One end of the spring abuts against the pull plate, and the other end of the spring abuts against the first connecting pipe. A pipe clamp is sleeved on the hose, and the hose and the first connecting pipe are fixedly connected by the pipe clamp.

[0014] It provides reliable elastic support for the inner wall of the hose and has a compact structure.

[0015] Furthermore, one end of the pull plate is fixed with a first plate hook, one end of the second connecting pipe extends into the hose and is fixed with a second plate hook, one end of the pull cable is hooked on the first plate hook, and the other end of the pull cable is hooked on the second plate hook.

[0016] When the cable overcomes the elastic force of the elastic element, it can be pulled out from the other end of the hose and hooked onto the second plate hook. It is easy to assemble and disassemble, and it is convenient to disassemble the hose and cable for maintenance and repair, resulting in low maintenance costs.

[0017] Furthermore, both ends of the intermediate guide rod are fixed with hinge seats, both ends of the first hinge shaft are connected to the hinge seats, and the middle part of the first hinge shaft is rotatably connected to the first connecting pipe.

[0018] The first hinge shaft has high connection strength and good stability.

[0019] Furthermore, a hinge plate is fixed to the other end of the second connecting pipe, and the end of the side guide rod near the second connecting pipe is a pipe fitting. The hinge plate extends into the side guide rod and is rotatably connected to the middle of the second hinge shaft. The two ends of the second hinge shaft are connected to the side guide rod. A slot is opened on the upper side of the end of the side guide rod near the second connecting pipe, and the second connecting pipe can rotate up and down around the second hinge shaft along the slot.

[0020] This design achieves a hinged connection between the second connecting pipe and the side guide rod while ensuring they are directly opposite each other. This reduces the gap between the second connecting pipe and the side guide rod, preventing the straw from getting stuck in the gap during the cutting process and causing deformation of the second connecting pipe or the side guide rod, thus extending its service life.

[0021] Furthermore, the end of the hose welded away from the central guide rod is tilted forward, the end of the side guide rod welded away from the central guide rod is bent forward, and the front end of the central guide rod is provided with an arc-shaped rod, the middle of the inner arc side of the arc-shaped rod is fixedly connected to the end of the central guide rod welded together.

[0022] It facilitates the restraint of straw moving from front to back within the side guide rods on both sides, preventing straw from slipping off the left and right sides and ensuring that the straw is fed into the cutter in an orderly manner; the arc-shaped rod guides the straw in the middle to the hoses on both sides, making it easier to divert the straw to the inlet of the feed wheel on both sides, resulting in high feeding efficiency.

[0023] Furthermore, the mounting support assembly includes a mounting cylinder and a mounting rod. The upper end of the mounting rod is fixedly connected to the side guide rod, and the lower end of the mounting rod is inserted into the mounting cylinder from the upper end of the mounting cylinder. Multiple mounting holes are distributed vertically on the side wall of the mounting cylinder, and at least one mounting hole is connected to the mounting rod by bolts.

[0024] By removing the bolts, the length of the mounting rod inserted into the mounting cylinder can be adjusted, thereby adjusting the height of the side guide rod, making it easy to adapt to different types of crops and providing good adaptability. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the present invention in its installed state.

[0026] Figure 2 This is a schematic diagram of the structure of this utility model.

[0027] Figure 3 This is a schematic diagram of the structure of this utility model with one hose removed.

[0028] Figure 4 This is a schematic diagram of the internal structure of the end of the hose near the center guide rod where it is welded.

[0029] Figure 5 This is a schematic diagram of the internal structure of the end of the hose near the side guide rod.

[0030] In the accompanying drawings, the technical features represented by each reference numeral are as follows: 1-Intermediate guide rod welding; 2-Hose; 3-Side guide rod; 4-First hinge shaft; 5-Second hinge shaft; 6-First connecting pipe; 7-Second connecting pipe; 8-Cable; 9-Pull plate; 10-Elastic element; 11-First plate hook; 12-Second plate hook; 13-Hinge seat; 14-Hinge plate; 15-Arc rod; 16-Mounting cylinder; 17-Mounting rod; 18-Pipe clamp; 20-Cutting table. Detailed Implementation

[0031] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0032] This utility model refers to Figure 1-5 .

[0033] This utility model provides a foldable guide rod device, including a central guide rod welded 1. Both sides of the central guide rod welded 1 are provided with flexible hoses 2 and side guide rods 3. One end of the flexible hose 2 is hinged to the central guide rod welded 1 via a first hinge shaft 4, allowing the flexible hose 2 to rotate up and down relative to the central guide rod welded 1 around the first hinge shaft 4. The other end of the flexible hose 2 is hinged to the side guide rod 3 via a second hinge shaft 5, allowing the side guide rod 3 to rotate up and down relative to the flexible hose 2 around the second hinge shaft 5. A mounting support assembly is also fixed to the lower side of the side guide rod 3.

[0034] The principle of the foldable guide rod device of this utility model is as follows: During installation, the intermediate guide rod welded together 1 is fixedly installed on the crossbeam on the upper rear side of the cutter head 20, and the mounting support assembly is fixedly installed on the folded parts on both sides of the cutter head 20. During operation, under the fixed support of the mounting support assembly, the side guide rod 3 is in a fixed state, and both ends of the hose 2 are constrained and kept in a lateral tension state, so that the intermediate guide rod welded together 1, the hose 2, and the side guide rod 3 can all support the stem. When the cutter head 20 is folded, the folded parts on both sides fold upwards by 90°. At this time, the mounting support assembly and the side guide rod 3 on both sides move upwards with the folded parts on both sides of the cutter head 20, and the middle of the hose 2 bends downwards. At the same time, the two ends of the hose 2 can release stress by rotating with the hinge shaft, avoiding the hose 2 from bending and deforming under stress concentration.

[0035] When selecting the hose 2, priority is given to hoses with greater thickness and hardness to ensure stronger wear resistance and a larger minimum bending radius, thereby guaranteeing a longer service life and reliable support for the stem. Addressing the issue of such hoses easily kinking and breaking under significant bending, the hinged structure at both ends of the hose 2 in this invention effectively releases deformation stress and prevents kinking.

[0036] This invention employs a flexible hose 2 installed between the intermediate guide rod welded 1 and the side guide rod 3. The hose 2 can bend as the cutting table 20 is folded, and the bent portion of the hose 2 will not make hard contact with the cutting table 20, thus avoiding structural interference. At the same time, the hinge structure at both ends of the hose 2 reliably releases deformation stress, preventing the hose 2 from kinking and ensuring its service life. During operation, both ends of the hose 2 are restrained by their hinge shafts, ensuring the hose 2 remains taut and reliably supports the stem, ensuring the orderly feeding of the stem.

[0037] Furthermore, a first connecting pipe 6 is fixed to one end of the hose 2, and a first hinge shaft 4 is located on the first connecting pipe 6; a second connecting pipe 7 is fixed to the other end of the hose 2, and a second hinge shaft 5 is located on the second connecting pipe 7.

[0038] The hinge shaft is installed by connecting the first connecting pipe 6 and the second connecting pipe 7, which improves the installation strength of the hinge shaft, avoids wear of the hose 2 by the hinge shaft during operation, and extends its service life.

[0039] Furthermore, a cable 8 is connected between the first connecting pipe 6 and the second connecting pipe 7, and the cable 8 is located inside the hose 2.

[0040] When the hose 2 is subjected to straw pressure, the cable 8 is in a straight state, which can provide elastic support to the inside of the cartilage, improve the strength of the hose 2, reduce the amount of deformation of the hose 2, and prevent the hose 2 from being stretched or fatigued and broken after long-term use; at the same time, it is convenient to reliably support the stalk and ensure the orderly feeding of the stalk.

[0041] Furthermore, one end of the first connecting tube 6 extends into the hose 2 and is slidably connected to a pull plate 9. One end of the pull plate 9 extends out of the first connecting tube 6 and is connected to a pull cable 8. An elastic element 10 is connected inside the first connecting tube 6, and the elastic element 10 is connected to the pull plate 9.

[0042] Note: One end of the second connecting tube 7 can also extend into the hose 2 and be slidably connected to the pull plate 9. One end of the pull plate 9 extends out of the second connecting tube 7 and is connected to the pull cable 8. An elastic element 10 is connected inside the second connecting tube 7, and the elastic element 10 is connected to the pull plate 9.

[0043] When the hose 2 is stretched and deformed, the tension of the cable 8 drives the pull plate 9 to overcome the elastic force of the elastic element 10, thereby using the elastic force of the elastic element 10 to provide elastic support for the inner wall of the hose 2 and reduce the amount of deformation of the hose 2; when the external force on the hose 2 disappears, the elastic force of the elastic element 10 drives the pull plate 9 to reset, thereby keeping the cable 8 taut, and at the same time applying axial compressive stress to the hose 2, promoting the deformation recovery of the hose 2 and extending the service life of the hose 2.

[0044] Furthermore, the elastic element 10 is a spring, which is sleeved on the pull plate 9. One end of the spring abuts against the pull plate 9, and the other end of the spring abuts against the first connecting pipe 6. The hose 2 is fitted with a pipe clamp 18, and the hose 2 and the first connecting pipe 6 are fixedly connected by the pipe clamp 18.

[0045] Preferably, the other end of the pull plate 9 is T-shaped, and one end of the spring abuts against the other end of the pull plate 9; one end of the first connecting tube 6 that extends into the hose 2 is closed, and the other end of the spring abuts against the end of the first connecting tube 6 that extends into the hose 2.

[0046] Preferably, an elastic cylindrical pin is also fixed inside the first connecting tube 6, and one end of the pull plate 9 located inside the first connecting tube 6 can abut against the elastic cylindrical pin.

[0047] It facilitates reliable elastic support for the inner wall of hose 2 and has a compact structure.

[0048] Furthermore, one end of the pull plate 9 is fixed with a first hook 11, one end of the second connecting pipe 7 extends into the hose 2 and is fixed with a second hook 12, one end of the pull cable 8 is hooked on the first hook 11, and the other end of the pull cable 8 is hooked on the second hook 12.

[0049] Preferably, the first plate hook 11 is integrally formed and connected to the pull plate 9. The pull cable 8 is a chain link.

[0050] When the cable 8 overcomes the elastic force of the elastic element 10, it can be pulled out from the other end of the hose 2 and hooked with the second plate hook 12. It is easy to disassemble and assemble, and it is convenient to disassemble the hose 2 and cable 8 for maintenance and repair, resulting in low maintenance costs.

[0051] Furthermore, both ends of the intermediate guide rod welding 1 are fixed with hinge seats 13, both ends of the first hinge shaft 4 are connected to the hinge seats 13, and the middle part of the first hinge shaft 4 is rotatably connected to the first connecting pipe 6.

[0052] Note: The two ends of the first hinge shaft 4 can be fixedly connected to the hinge seat 13 or rotatably connected.

[0053] The first hinge shaft 4 has high connection strength and good stability.

[0054] Furthermore, a hinge plate 14 is fixed to the other end of the second connecting pipe 7. The end of the side guide rod 3 near the second connecting pipe 7 is a pipe fitting. The hinge plate 14 extends into the side guide rod 3 and is rotatably connected to the middle of the second hinge shaft 5. The two ends of the second hinge shaft 5 are connected to the side guide rod 3. A slot is opened on the upper side of the end of the side guide rod 3 near the second connecting pipe 7. The second connecting pipe 7 can rotate up and down around the second hinge shaft 5 along the slot.

[0055] Note: The two ends of the second hinge shaft 5 can be rotatably connected to the side guide rod 3, or they can be fixedly connected.

[0056] This design achieves a hinged connection between the second connecting pipe 7 and the side guide rod 3 while ensuring they are directly opposite each other. This reduces the gap between the second connecting pipe 7 and the side guide rod 3, preventing the straw from getting stuck in the gap during the feeding process into the cutter head 20, which could cause deformation of the second connecting pipe 7 or the side guide rod 3 and extend its service life.

[0057] Furthermore, the end of the hose 2 away from the intermediate guide rod weld 1 is tilted forward, the end of the side guide rod 3 away from the intermediate guide rod weld 1 is bent forward, and the front end of the intermediate guide rod weld 1 is provided with an arc-shaped rod 15, the middle part of the inner arc side of the arc-shaped rod 15 is fixedly connected to the end of the intermediate guide rod weld 1.

[0058] It is convenient to constrain the straw moving from front to back within the side guide rods 3 on both sides, preventing the straw from slipping off the left and right sides and ensuring that the straw is fed into the cutter 20 in an orderly manner; the arc rod 15 guides the straw in the middle to the hoses 2 on both sides, which facilitates the straw to be diverted to the inlet of the feed wheel on both sides, resulting in high feeding efficiency.

[0059] Furthermore, the mounting support assembly includes a mounting cylinder 16 and a mounting rod 17. The upper end of the mounting rod 17 is fixedly connected to the side guide rod 3, and the lower end of the mounting rod 17 is inserted into the mounting cylinder 16 from the upper end of the mounting cylinder 16. Multiple mounting holes are distributed vertically on the side wall of the mounting cylinder 16, and at least one mounting hole is connected to the mounting rod 17 by bolts.

[0060] Specifically, the mounting rod 17 is provided with at least one mounting hole. When the mounting hole on the mounting rod 17 is aligned with the mounting hole on the mounting cylinder 16, a fixed connection is achieved by inserting a bolt into the mounting holes of the mounting cylinder 16 and the mounting rod 17.

[0061] By removing the bolts, the length of the mounting rod 17 inserted into the mounting cylinder 16 can be adjusted, thereby adjusting the height of the side guide rod 3, which is easy to adapt to different types of crops and has good adaptability.

[0062] In the description of this utility model, it should be understood that if descriptive terms indicating orientation, direction, or positional relationship appear, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of understanding this utility model and simplifying the description, and does not indicate or imply that the part, element, or whole referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0063] Furthermore, if sequential descriptive terms such as "first," "second," etc., appear, their purpose in this specification is for ease of understanding or simplification. For example, to distinguish multiple technical features of the same type or function, which must be mentioned separately, this specification may use prefixes or suffixes to differentiate them. Therefore, they should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this utility model, if descriptive terms describing structural relationships are used, such as "installation," "connection," "joining," and "fixing," they should be interpreted broadly unless otherwise explicitly specified and limited. For example, "installation," "connection," and "joining" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. "Fixing" can refer to an integral fixation or a detachable fixation using fasteners; it can be a direct fixation or a fixation through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood based on the specific circumstances, the context, and the coherence of the preceding and following text.

[0065] In this utility model, if descriptive terms containing subordinate or connecting meanings appear, such as "above" or "below" the second feature, they should not be interpreted restrictively unless otherwise explicitly specified and limited. For example, "above" or "below" can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood according to the specific circumstances, the context, and the coherence of the preceding and following text.

[0066] Furthermore, "above," "on top of," and "above" the first feature in relation to 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," "under," and "below" the first feature in relation to 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.

[0067] 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. The illustrative expressions of the above terms in this specification 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, examples, and features described in this specification, and such combinations or integrations should all fall within the scope of the present invention.

[0068] 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. Variations, modifications, substitutions, and modifications made by those skilled in the art to the above embodiments within the scope of information available through public channels and in conjunction with the technical teachings given in this application are still covered within the protection scope of this application.

Claims

1. A foldable guide rod device, characterized in that: The system includes a central guide rod welding (1), on which flexible hoses (2) and side guide rods (3) are provided on both the left and right sides. One end of the flexible hose (2) is hinged to the central guide rod welding (1) through a first hinge shaft (4). The flexible hose (2) can rotate up and down relative to the central guide rod welding (1) around the first hinge shaft (4). The other end of the flexible hose (2) is hinged to the side guide rod (3) through a second hinge shaft (5). The side guide rod (3) can rotate up and down relative to the flexible hose (2) around the second hinge shaft (5). A mounting support assembly is also fixed on the lower side of the side guide rod (3).

2. The foldable guide rod device according to claim 1, characterized in that: One end of the hose (2) is fixed with a first connecting pipe (6), and a first hinge shaft (4) is located on the first connecting pipe (6); the other end of the hose (2) is fixed with a second connecting pipe (7), and a second hinge shaft (5) is located on the second connecting pipe (7).

3. The foldable guide rod device according to claim 2, characterized in that: A cable (8) is connected between the first connecting pipe (6) and the second connecting pipe (7), and the cable (8) is located inside the hose (2).

4. The foldable guide rod device according to claim 3, characterized in that: One end of the first connecting tube (6) extends into the hose (2) and is slidably connected to a pull plate (9). One end of the pull plate (9) extends out of the first connecting tube (6) and is connected to the pull cable (8). An elastic element (10) is connected inside the first connecting tube (6), and the elastic element (10) is connected to the pull plate (9).

5. The foldable guide rod device according to claim 4, characterized in that: The elastic element (10) is a spring, which is sleeved on the pull plate (9). One end of the spring abuts against the pull plate (9), and the other end of the spring abuts against the first connecting pipe (6). The hose (2) is fitted with a pipe clamp (18), and the hose (2) and the first connecting pipe (6) are fixedly connected by the pipe clamp (18).

6. The foldable guide rod device according to claim 4, characterized in that: One end of the pull plate (9) is fixed with a first plate hook (11), one end of the second connecting pipe (7) extends into the hose (2) and is fixed with a second plate hook (12), one end of the pull cable (8) is hooked on the first plate hook (11), and the other end of the pull cable (8) is hooked on the second plate hook (12).

7. The foldable guide rod device according to claim 2, characterized in that: Both ends of the intermediate guide rod welding (1) are fixed with hinge seats (13), both ends of the first hinge shaft (4) are connected to the hinge seats (13), and the middle part of the first hinge shaft (4) is rotatably connected to the first connecting pipe (6).

8. The foldable guide rod device according to any one of claims 2-7, characterized in that: The other end of the second connecting pipe (7) is fixed with a hinge plate (14). The end of the side guide rod (3) near the second connecting pipe (7) is a pipe fitting. The hinge plate (14) extends into the side guide rod (3) and is rotatably connected to the middle of the second hinge shaft (5). The two ends of the second hinge shaft (5) are connected to the side guide rod (3). A slot is opened on the upper side of the end of the side guide rod (3) near the second connecting pipe (7). The second connecting pipe (7) can rotate up and down around the second hinge shaft (5) along the slot.

9. The foldable guide rod device according to any one of claims 1-7, characterized in that: The end of the hose (2) away from the intermediate guide rod weld (1) is tilted forward, and the end of the side guide rod (3) away from the intermediate guide rod weld (1) is bent forward. The front end of the intermediate guide rod weld (1) is provided with an arc rod (15), and the middle part of the inner arc side of the arc rod (15) is fixedly connected to the end of the intermediate guide rod weld (1).

10. The foldable guide rod device according to any one of claims 1-7, characterized in that: The mounting support assembly includes a mounting cylinder (16) and a mounting rod (17). The upper end of the mounting rod (17) is fixedly connected to the side guide rod (3). The lower end of the mounting rod (17) is inserted into the mounting cylinder (16) from the upper end of the mounting cylinder (16). Multiple mounting holes are distributed vertically on the side wall of the mounting cylinder (16). At least one mounting hole is connected to the mounting rod (17) by bolts.

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