Hydraulic control telescopic arm

By installing protective, monitoring, and photovoltaic components on the hydraulic telescopic boom, the leakage problem caused by debris getting stuck in the hydraulic rod in harsh environments was solved, improving the reliability and efficiency of the equipment and reducing maintenance costs.

CN224214495UActive Publication Date: 2026-05-08HUNAN RUNKAITE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN RUNKAITE TECHNOLOGY CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing hydraulic telescopic booms are prone to damage to the sealing structure and hydraulic system leakage in harsh environments due to hard particles getting stuck inside the hydraulic rod, which increases maintenance costs and downtime.

Method used

A hydraulic telescopic boom comprising a protective component, a monitoring component, and a photovoltaic component was designed. The protective component is fitted onto the hydraulic rod with a rubber bellows, combined with a threaded rod and insert plate structure to prevent gravel particles from getting stuck. The monitoring component uses a miniature camera to observe damage to the rubber bellows, and the photovoltaic component supplies power through photovoltaic panels.

Benefits of technology

It effectively prevents stone particles from scratching the hydraulic rod, reduces the probability of system leakage, improves work efficiency and equipment reliability, facilitates the replacement of rubber bellows and camera maintenance, and reduces energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of engineering machinery, and discloses a hydraulic control telescopic arm which comprises a telescopic arm used as an installation carrier of a protection assembly, a monitoring assembly and a photovoltaic assembly, and the telescopic arm is composed of a movable arm, a hydraulic rod and a bucket rod; and the protection assembly is used for performing protection operation on the hydraulic rod. By arranging the protection assembly, protection operation on the piston rod of the hydraulic rod is achieved, the problem that due to the fact that external broken stone particles are clamped on the hydraulic rod and stretch out and draw back frequently, the surface of the hydraulic rod is scratched, and leakage of a hydraulic system is caused is solved, working efficiency is improved, and meanwhile the occurrence probability of overall equipment failures is reduced; the practicability of the hydraulic rod is further improved, and actual application and operation are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and more specifically to a hydraulically controlled telescopic boom. Background Technology

[0002] Hydraulic telescopic booms are common core actuators in construction machinery. They are driven by a core hydraulic rod structure to achieve the extension and retraction of the boom. Their working principle is primarily based on hydraulic transmission, using the extension and retraction of hydraulic cylinders to propel the boom's movement.

[0003] The shortcomings of existing technology: In current applications of hydraulic telescopic booms, the boom body is usually moved by driving a hydraulic rod to achieve the corresponding operation function. In harsh working environments, there are often hard particles such as gravel and sand mixed in. During operation, these hard particles are easily splashed under the action of external force. The splashed gravel particles will directly hit the piston rod surface of the hydraulic cylinder and adhere to the piston rod surface. As the hydraulic rod is continuously and frequently extended and retracted, the gravel particles are easy to get stuck in the extension and retraction parts of the hydraulic rod. When the gravel particles are stuck inside the hydraulic rod, they will not only scratch the surface of the hydraulic rod, but also damage the sealing structure of the hydraulic rod, thus causing hydraulic system leakage. This will further increase the maintenance cost and downtime of the hydraulic system, which is not conducive to practical application and operation. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a hydraulically controlled telescopic arm to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a hydraulically controlled telescopic arm, comprising:

[0006] A telescopic boom is used as an installation carrier for protective components, monitoring components, and photovoltaic components. The telescopic boom consists of a boom, a hydraulic rod, and a stick.

[0007] Protective components are used to protect hydraulic rods during operation;

[0008] The protective components include:

[0009] A rubber bellows is fitted onto the piston rod of a hydraulic rod via an installation assembly;

[0010] The fixing plates are all installed on the outside of both ends of the rubber bellows;

[0011] L-shaped plates are installed on the outside of the hydraulic rod and on the piston rod, respectively;

[0012] The square channels are all formed inside the L-shaped plate;

[0013] The insert plates are all installed on the outside of the fixed plate, and the insert plates and the square grooves cooperate with each other.

[0014] Preferably, the protective component further includes:

[0015] The second threaded rod is threadedly engaged with the L-shaped plate.

[0016] The internal threaded grooves are all opened inside the insert plate, and the second threaded rod and the internal threaded groove are mutually engaged.

[0017] Preferably, the mounting components include:

[0018] Connecting plates are installed at equal intervals on both sides of the rubber corrugated pipe;

[0019] All through holes are located inside the connecting plate;

[0020] The first threaded rod is threadedly engaged with both connecting plates.

[0021] Preferably, the monitoring component includes:

[0022] Support rod, installed on the outside of the hydraulic rod;

[0023] The receiving plate is installed at the end of the support rod away from the hydraulic rod;

[0024] Miniature surveillance cameras are connected to a mounting plate by disassembling components.

[0025] Preferably, the disassembly assembly includes:

[0026] The receiving grooves are all located inside the receiving plate;

[0027] Mounting plates are installed on both sides of the miniature surveillance camera;

[0028] The inserts are all installed on one side of the mounting plate, with the end of the insert away from the mounting plate extending into the interior of the receiving groove;

[0029] The T-shaped rod is slidably fitted with the support rod;

[0030] The baffles are all installed on the bottom end of the T-shaped rod;

[0031] The preload springs are all fitted onto the T-shaped rods, and the preload springs are located between the baffle and the inner wall of the receiving groove;

[0032] A perforation is formed inside the insert, and the perforation mates with the bottom end of the T-shaped rod.

[0033] Preferably, the photovoltaic module includes:

[0034] The connecting rods are all mounted on the boom;

[0035] The photovoltaic panel is installed between the tops of the two connecting rods.

[0036] The beneficial effects of this utility model are:

[0037] 1. In this utility model, by setting a protective component, the piston rod of the hydraulic rod is protected, which solves the problem of external gravel particles getting stuck on the hydraulic rod and causing damage to its surface due to frequent extension and contraction, resulting in hydraulic system leakage. This improves work efficiency, reduces the probability of overall equipment failure, and further enhances the practicality of the hydraulic rod, which is beneficial to practical application and operation.

[0038] 2. In this utility model, by setting up an installation component, it is convenient to disassemble and assemble the rubber corrugated pipe, and further facilitates the replacement of the rubber corrugated pipe when it is damaged in the future; by setting up a monitoring component, it is convenient to observe whether the rubber corrugated pipe is damaged during operation, so that the staff can replace it in time after discovering it; by setting up a disassembly component, it is convenient to disassemble and replace the miniature monitoring camera, ensuring the normal operation of subsequent work. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model.

[0040] Figure 2 This is a partially enlarged schematic diagram of the protective component on the hydraulic rod of this utility model.

[0041] Figure 3 This is a partially enlarged schematic diagram of the rubber corrugated pipe of this utility model in the state before installation.

[0042] Figure 4 This is a partially enlarged cross-sectional view of the disassembled component of the monitoring component of this utility model.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. Telescopic boom; 11. Boom; 12. Hydraulic rod; 13. Stick; 2. Mounting assembly; 21. Connecting plate; 22. Through hole; 23. First threaded rod; 3. Protective assembly; 31. Rubber bellows; 32. Fixing plate; 33. L-shaped plate; 34. Square groove; 35. Insert plate; 36. Second threaded rod; 37. Internal threaded groove; 4. Monitoring assembly; 41. Support rod; 42. Receiving plate; 43. Miniature monitoring camera; 5. Disassembly assembly; 51. Container; 52. Mounting plate; 53. Insert block; 54. T-shaped rod; 55. Baffle; 56. Preload spring; 57. Perforation; 6. Photovoltaic module; 61. Connecting rod; 62. Photovoltaic panel. Detailed Implementation

[0045] The following will be combined with the appendix Figures 1 to 4 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0046] Please see Figure 1-3 This utility model provides a hydraulically controlled telescopic arm, comprising:

[0047] Telescopic boom 1 is used as an installation carrier for protective component 3, monitoring component 4 and photovoltaic component 6. Telescopic boom 1 consists of boom 11, hydraulic rod 12 and stick 13.

[0048] Protective component 3 is used to protect the hydraulic rod 12 during operation;

[0049] Protective component 3 includes:

[0050] The rubber bellows 31 is mounted on the piston rod of the hydraulic rod 12 via the mounting assembly 2;

[0051] The fixing plates 32 are all installed on the outer sides of both ends of the rubber bellows 31;

[0052] L-shaped plates 33 are respectively installed on the outside of the hydraulic rod 12 and on the piston rod;

[0053] The square grooves 34 are all opened inside the L-shaped plate 33;

[0054] The insert plates 35 are all installed on the outside of the fixing plate 32, and the insert plates 35 and the square grooves 34 cooperate with each other.

[0055] The second threaded rod 36 is threadedly engaged with the L-shaped plate 33.

[0056] The internal threaded grooves 37 are all opened inside the insert plate 35, and the second threaded rod 36 and the internal threaded grooves 37 cooperate with each other.

[0057] In practical application, this embodiment uses the installation component 2 to fit the rubber bellows 31 onto the piston rod of the hydraulic rod 12. Then, the fixing plates 32 on both ends of the rubber bellows 31 are pulled back to back, so that the two insert plates 35 on the outside of the fixing plates 32 pass through the square grooves 34 on the L-shaped plate 33. Then, the second threaded rod 36 on the L-shaped plate 33 is turned so that the bottom end of the second threaded rod 36 passes through the internal thread grooves 37 in the two insert plates 35 in sequence, thus successfully fitting the rubber bellows 31 onto the piston of the hydraulic rod 12, thereby achieving a protective operation on the piston rod of the hydraulic rod 12.

[0058] This embodiment uses a protective component 3 to protect the piston rod of the hydraulic rod 12, solving the problem of external gravel particles getting stuck on the hydraulic rod 12 and causing damage to its surface due to frequent extension and retraction, thus causing hydraulic system leakage. This improves work efficiency, reduces the probability of overall equipment failure, and further enhances the practicality of the hydraulic rod 12, which is beneficial for practical application and operation.

[0059] Please see Figure 3 In a preferred embodiment of this utility model, the mounting component 2 includes:

[0060] Connecting plates 21 are installed at equal intervals on both sides of the rubber corrugated pipe 31;

[0061] All through holes 22 are opened inside the connecting plate 21;

[0062] The first threaded rod 23 is threadedly engaged with both connecting plates 21.

[0063] In practical application, the rubber bellows 31 is first wrapped around the piston of the hydraulic rod 12, and then the multiple connecting plates 21 on the two vertical sides of the rubber bellows 31 are attached in pairs. Then, the first threaded rod 23 is inserted into the two through holes 22 through the threaded knob to successfully wrap the rubber bellows 31 around the hydraulic rod 12.

[0064] This embodiment facilitates the disassembly and assembly of the rubber bellows 31 by setting the installation component 2, and further facilitates the replacement of the rubber bellows 31 when it is damaged in the future.

[0065] Please see Figure 1 and 4 In a preferred embodiment of this utility model, the monitoring component 4 includes:

[0066] Support rod 41 is installed on the outside of hydraulic rod 12;

[0067] The receiving plate 42 is installed at the end of the support rod 41 away from the hydraulic rod 12;

[0068] The miniature surveillance camera 43 is connected to the receiving plate 42 via the disassembly component 5.

[0069] In practical applications, this embodiment allows for easy observation of whether the surface of the rubber bellows 31 is damaged when the miniature monitoring camera 43 is mounted on the hydraulic rod 12 with the help of the support plate 42 on the support rod 41.

[0070] This embodiment uses a monitoring component 4 to facilitate observation of whether the rubber bellows 31 is damaged during operation, allowing staff to replace it promptly upon discovery.

[0071] Please see Figure 4 In a preferred embodiment of this utility model, the disassembly component 5 includes:

[0072] The receiving grooves 51 are all opened inside the receiving plate 42;

[0073] Mounting plates 52 are installed on both sides of the miniature surveillance camera 43;

[0074] The inserts 53 are all installed on one side of the mounting plate 52, and the end of the insert 53 away from the mounting plate 52 extends into the interior of the groove 51;

[0075] T-shaped rod 54, T-shaped rod 54 and support rod 41 are in sliding fit;

[0076] All baffles 55 are installed on the bottom end of the T-shaped rod 54;

[0077] The preload springs 56 are all sleeved on the T-shaped rods 54, and the preload springs 56 are located between the baffle 55 and the inner wall of the groove 51.

[0078] A perforation 57 is formed inside the insert block 53, and the perforation 57 and the bottom end of the T-shaped rod 54 are mutually engaged.

[0079] In practical application, when the miniature surveillance camera 43 malfunctions and needs to be repaired or replaced, the two T-shaped rods 54 are pulled first, causing the baffle 55 to slide in opposite directions, which deforms the two pre-tension springs 56. At the same time, the bottom ends of the two T-shaped rods 54 are separated from the through holes 57 on the insert block 53. Then, the insert block 53 on the mounting plate 52 is pulled out of the receiving plate 42 from the groove 51, thus realizing the disassembly operation of the miniature surveillance camera 43.

[0080] This embodiment provides a disassembly component 5 to facilitate the disassembly and replacement of the miniature surveillance camera 43, ensuring the normal operation of subsequent work.

[0081] Please see Figure 1 In a preferred embodiment of this utility model, the photovoltaic module 6 includes:

[0082] The connecting rods 61 are all installed on the boom 11;

[0083] The photovoltaic panel 62 is installed between the tops of the two connecting rods 61.

[0084] In practical application, this embodiment uses photovoltaic panels 62 on the two connecting rods 61 to convert external light energy into electrical energy, thereby powering the miniature monitoring camera 43 in the monitoring component 4.

[0085] In this embodiment, by setting up photovoltaic module 6, it is convenient to power the miniature monitoring camera 43 in monitoring module 4, thereby reducing energy consumption.

[0086] Based on the explanations and teachings in the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and any modifications and alterations to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A hydraulically controlled telescopic arm, characterized in that: include: Telescopic boom (1) is used as a mounting carrier for protective components (3), monitoring components (4) and photovoltaic components (6). The telescopic boom (1) is composed of boom (11), hydraulic rod (12) and stick (13). Protective component (3) is used to protect the hydraulic rod (12) during operation; The protective component (3) includes: A rubber bellows (31) is fitted onto the piston rod of the hydraulic rod (12) via an installation assembly (2); The fixing plates (32) are all installed on the outside of both ends of the rubber corrugated pipe (31); L-shaped plates (33) are respectively installed on the outside of the hydraulic rod (12) and on the piston rod; The square grooves (34) are all opened inside the L-shaped plate (33); The insert plates (35) are all installed on the outside of the fixed plate (32), and the insert plates (35) and the square groove (34) cooperate with each other.

2. The hydraulically controlled telescopic boom according to claim 1, characterized in that: The protective component (3) also includes: The second threaded rod (36) is threadedly engaged with the L-shaped plate (33); The internal threaded grooves (37) are all opened inside the insert plate (35), and the second threaded rod (36) and the internal threaded grooves (37) cooperate with each other.

3. The hydraulically controlled telescopic boom according to claim 1, characterized in that: The installation component (2) includes: Connecting plates (21) are installed at equal intervals on both sides of the rubber corrugated pipe (31); All through holes (22) are located inside the connecting plate (21); The first threaded rod (23) is threadedly engaged with both connecting plates (21).

4. The hydraulically controlled telescopic boom according to claim 1, characterized in that: The monitoring component (4) includes: Support rod (41) is installed on the outside of hydraulic rod (12); The receiving plate (42) is installed at the end of the support rod (41) away from the hydraulic rod (12); The miniature surveillance camera (43) is connected to the support plate (42) via the disassembly component (5).

5. A hydraulically controlled telescopic boom according to claim 4, characterized in that: The disassembly assembly (5) includes: The receiving grooves (51) are all opened inside the receiving plate (42); Mounting plates (52) are installed on both sides of the miniature surveillance camera (43); The inserts (53) are all installed on one side of the mounting plate (52), and the end of the insert (53) away from the mounting plate (52) extends into the interior of the receiving groove (51); T-shaped rod (54), wherein the T-shaped rod (54) is in sliding fit with the support rod (41); The baffles (55) are all installed on the bottom end of the T-shaped rod (54); Preload springs (56) are all fitted on T-shaped rods (54), and the preload springs (56) are located between the baffle (55) and the inner wall of the groove (51); A perforation (57) is formed in the insert (53), and the perforation (57) is engaged with the bottom end of the T-shaped rod (54).

6. A hydraulically controlled telescopic boom according to claim 1, characterized in that: The photovoltaic module (6) includes: The connecting rods (61) are all installed on the boom (11); A photovoltaic panel (62) is installed between the tops of two connecting rods (61).