Totally-enclosed insulation arm of visible drying system easy to replace

By incorporating a transparent dryer and stirring assembly into the insulated arm, and utilizing blue silica gel particles to absorb moisture and replace them regularly, the problem of dust and moisture accumulation on the surface of the insulated arm is solved, thereby improving the insulation performance and safety of the insulated bucket truck.

CN223826687UActive Publication Date: 2026-01-23QING DAO ZHONG QI TE ZHONG QI CHE YOU XIAN GONG SI
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Patent Information

Application Number
CN202423161235.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-01-23
Estimated Expiration
2034-12-20

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    Figure CN223826687U_ABST
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Abstract

The utility model discloses a totally-enclosed insulating arm of an easy-to-replace visual drying system, and relates to the technical field of engineering machinery manufacturing, the totally-enclosed insulating arm comprises an insulating arm and a dryer filled with blue silica gel particles, two ends of the insulating arm are provided with sealing plates, and a plurality of insulating oil pipes are arranged in parallel between the two sealing plates on the inner side of the insulating arm; the side portions of the two ends of the insulating arm are provided with side covers used for assembling an insulating oil pipe, the sealing plates are additionally provided with plate passing connectors connected with the ends of the insulating oil pipe in an inserted mode, the dryer is laterally inserted into the insulating arm, and the outer end of the dryer is transparent. Dust and moisture attached to the inner arm of the insulating arm can be greatly reduced; a granular blue silica gel desiccant is placed in a dryer installed in an insulating arm, the dryer is provided with air holes communicated with air in the insulating arm, the desiccant can absorb moisture in the insulating arm, and the desiccant can be properly replaced according to the color change of the desiccant.
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Description

Technical Field

[0001] This application relates to the field of engineering machinery manufacturing technology, and in particular to a fully enclosed insulating arm for an easily replaceable visual drying system. Background Technology

[0002] An insulated bucket truck consists of an insulated overhead platform (including an insulated bucket and an insulated boom), a standardized road vehicle, and related equipment. It is a special vehicle capable of performing intermediate-potential work in locations with convenient transportation and complex wiring. Its main function is to lift personnel, robots, tools, etc., to the aerial work site via an insulated work platform to carry out live-line installation, maintenance, and other operations. Insulated bucket trucks are typically capable of live-line high-altitude work on lines higher than 10kV. Their bucket, boom, control hydraulic circuits, wiring, and boom joints all meet certain insulation performance standards and are equipped with grounding wires. Insulated bucket trucks are characterized by high operating efficiency, strong safety, and good electrical insulation performance, and are widely used in live-line work on power distribution networks. In my country, insulated bucket trucks are typically used on 10kV, 35kV, and 66kV lines.

[0003] As a crucial component of insulated bucket trucks, the insulated boom is susceptible to damage from dust and residual moisture. Accumulation of dust or moisture on its surface can significantly reduce its insulation level, potentially leading to electrical breakdowns and other safety accidents, and severely impacting the normal operation of power lines. Furthermore, the long length of the insulated boom and the need to house critical components like oil pipes within its internal space make traditional cleaning methods ineffective. Therefore, effectively addressing the cleaning challenges of the insulated boom surface and improving the insulation performance of insulated bucket trucks has become a pressing technical challenge in the field of power maintenance. Summary of the Invention

[0004] This device provides a fully enclosed insulating arm for easy replacement of the visual drying system, and the specific implementation method is as follows:

[0005] A fully enclosed insulated arm for an easily replaceable visual drying system includes:

[0006] An insulating arm is provided with sealing plates at both ends, and several insulating oil pipes are arranged in parallel between the two sealing plates on the inner side of the insulating arm.

[0007] The insulating arm has side covers at both ends for assembling insulating oil pipes, and the sealing plate is equipped with a through plate joint for inserting the end of the insulating oil pipe.

[0008] The dryer is filled with blue silica gel particles and is inserted laterally into the insulating arm. The outer end of the dryer is transparent, allowing for regular maintenance of the dryer by visually observing the color of the blue silica gel particles.

[0009] Preferably, the insulating arm has an upper metal arm and a lower metal arm at both ends. The upper metal arm is connected to the lifting bucket via a rotating pin, and the lower metal arm is connected to the vehicle body via a rotating pin.

[0010] Based on the above technical solutions, the connection between the two ends of the insulating oil pipe inside the insulating arm and the plate joint can ensure the power transmission of the hydraulic system. The addition of inspection holes on both sides of the insulating arm facilitates the installation and routine inspection of the oil pipe. Side covers are installed on the inspection holes and reliably sealed. An easily replaceable dryer is installed inside the insulating arm. The dryer contains granular blue silica gel desiccant. The outside of the dryer is a transparent nylon plate to observe the color of the desiccant. When the desiccant changes from blue to pink, the desiccant is replaced.

[0011] Preferably, the dryer includes an installation cylinder and an inner cylinder fitted inside it, with a space for holding blue silica gel particles formed between the outer side of the inner cylinder and the inner side of the installation cylinder.

[0012] Preferably, the mounting cylinder is open on one side, and the upper and lower parts of the open section are respectively provided with a feed port and a discharge port that are laterally connected to the containing space, and each is equipped with a feeding switch and a discharging switch; the mounting cylinder is provided with air holes along the circumference, and the diameter of the air holes is smaller than the diameter of the blue silica gel particles.

[0013] Based on the above technical solutions, in order to ensure a perfect sealing effect when not changing materials, both the feeding switch and the unloading switch are designed to be elastically pressed open. This design is not only easy to operate, but also automatically returns to a tightly closed state when not in use, effectively preventing external air or moisture from entering the installation cylinder, thereby maintaining its internal dryness and purity. As for the desiccant used, in addition to blue silica gel granules, other conventional granular desiccants can also be flexibly selected. Even if they do not have a color-changing indicator function like blue silica gel, they can still achieve excellent drying effects. For such granular desiccants, the desiccant granules can be stirred and replaced as necessary according to the preset periodic intervals.

[0014] Preferably, it also includes a stirring assembly, which is composed of a rotating shaft that is axially slidably disposed inside the inner cylinder, and the rotating shaft is provided with blades that pass through the inner cylinder via a connecting rod.

[0015] Preferably, the inner cylinder includes a unidirectional collapsing cavity, the cavity is provided with a limiting hole along its length, the connecting rod is slidably connected to the limiting hole, and a tension spring is provided axially between the inner end of the cavity and the inner end of the rotating shaft.

[0016] Based on the above technical solutions, by setting a tension spring mechanism, the shaft can be accurately reset in the axial direction relative to the inner cylinder. This not only enhances the stability of the structure but also makes the operation smoother and more controllable. To further improve the overall sealing performance, additional sealing measures can be taken at the sliding gap between the limiting hole and the connecting rod. For example, telescopic plates can be installed at these gaps. Utilizing their telescopic characteristics, they can tightly fit the contact surface between the limiting hole and the connecting rod, effectively blocking direct contact between the cavity and the external environment and preventing desiccant particles from leaking unintentionally or being contaminated by external factors. Alternatively, an elastic rubber strip can be added. This rubber strip has good elasticity and sealing properties and can tightly fit the open area on the side of the limiting hole. If this rubber strip sealing method is chosen, the tension spring design originally used to achieve axial reset can be omitted because the rubber strip itself can also generate a certain rebound force when subjected to external pressure, thereby assisting the shaft reset to a certain extent.

[0017] Preferably, the inner cylinder and the mounting cylinder are rotatably connected, and several limiting holes are provided at equal intervals along the circumference of the cavity.

[0018] Preferably, a tie rod is provided at the outer end of the rotating shaft, and the blades are inclined along the axial direction.

[0019] Based on the above technical solutions, by setting a tie rod, the inner cylinder and the rotating shaft can be rotated synchronously, thereby using the blades to achieve circumferential stirring of the desiccant particles in the installation cylinder; alternatively, by pulling the tie rod, the desiccant particles can be moved axially with the help of the blades. During the axial movement, the desiccant particles in the installation cylinder can also be stirred radially, thereby improving the overall comprehensiveness of the application of desiccant particles.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] 1. This utility model sets the interior of the insulating arm to be fully enclosed by sealing plates at both ends, which greatly reduces the amount of dust and moisture adhering to the inner arm of the insulating arm, thereby reducing leakage current and improving the insulation capacity of the insulating bucket truck.

[0022] 2. This utility model uses a dryer installed inside the insulating arm, which contains granular blue silica gel desiccant. The dryer has pores that communicate with the air inside the insulating arm. The desiccant can absorb moisture inside the insulating arm, further improving the insulation capability of the insulated bucket truck. Furthermore, the desiccant can be replaced appropriately according to its color change.

[0023] 3. This utility model has a simple structure. By setting the dryer as a combination of an inner cylinder, a mounting cylinder and a stirring assembly, it realizes the circumferential stirring and radial inward and outward turning of the desiccant, which fully improves the utilization rate of the desiccant. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the right-side structure of this utility model;

[0025] Figure 2 This is a side view of the structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of this utility model applied to a vehicle body;

[0027] Figure 4 This is a schematic diagram of the dryer in this utility model;

[0028] Figure 5 This is a cross-sectional view of the dryer structure in this utility model;

[0029] Figure 6 This utility model Figure 5 A schematic diagram of the explosion structure.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Upper metal arm; 2. Lower metal arm; 3. Insulating arm; 4. Sealing plate; 5. Through plate joint; 6. Insulating oil pipe; 7. Inner cylinder; 8. Mounting cylinder; 9. Mixing assembly; 10. Vehicle body; 11. Dryer; 12. Lifting bucket; 13. Side cover; 14. Tension spring.

[0032] 701. Cavity; 702. Limiting hole; 801. Discharge port; 802. Inlet port; 803. Loading switch; 804. Unloading switch; 805. Air hole; 901. Rotating shaft; 902. Blade; 903. Connecting rod; 904. Pull rod. Detailed Implementation

[0033] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples:

[0034] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0035] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0036] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0037] This application discloses a fully enclosed insulating arm for an easily replaceable visual drying system.

[0038] Example 1

[0039] Reference Figures 1 to 3 This embodiment discloses a fully enclosed insulating arm for an easily replaceable visual drying system, including an insulating arm 3 and a dryer 11 filled with blue silica gel particles. The insulating arm 3 has sealing plates 4 at both ends, and several insulating oil pipes 6 are arranged in parallel between the two sealing plates 4 on the inner side of the insulating arm 3. The insulating arm 3 has side covers 13 for assembling the insulating oil pipes 6 at both ends. The sealing plates 4 are equipped with through-plate connectors 5 for inserting the ends of the insulating oil pipes 6. In this structure, the insulating arm 3 has an upper metal arm 1 and a lower metal arm 2 at both ends. The upper metal arm 1 is connected to the lifting bucket 12 by a rotating pin, and the lower metal arm 2 is connected to the vehicle body 10 by a rotating pin.

[0040] The dryer 11 is inserted laterally into the insulating arm 3, and the outer end of the dryer 11 is made transparent, so that the dryer 11 can be regularly maintained by visually observing the color state of the blue silica gel particles.

[0041] Example 2

[0042] Reference Figures 4 to 6 Based on the above embodiments, this embodiment also discloses a fully enclosed insulating arm for an easily replaceable visual drying system. The dryer 11 includes a stirring assembly 9, a mounting cylinder 8, and an inner cylinder 7 fitted inside. A space for holding blue silica gel particles is formed between the outer side of the inner cylinder 7 and the inner side of the mounting cylinder 8.

[0043] The mounting cylinder 8 is open on one side, and its open section is provided with a feed port 802 and a discharge port 801 that are laterally connected to the containing space. The feed port 802 and discharge port 801 are respectively equipped with a feeding switch 803 and a discharging switch 804. The mounting cylinder 8 is provided with air holes 805 along the circumference. The diameter of the air holes 805 is smaller than the diameter of the blue silicone particles.

[0044] The stirring assembly 9 is composed of a rotating shaft 901 that is axially slidably disposed inside the inner cylinder 7. The rotating shaft 901 passes through the inner cylinder 7 via a connecting rod 903 and is provided with blades 902. In this structure, the inner cylinder 7 includes a unidirectional collapsing cavity 701. The cavity 701 is provided with a limiting hole 702 along its length direction. The connecting rod 903 is slidably connected to the limiting hole 702. A tension spring 14 is axially provided between the inner end of the cavity 701 and the inner end of the rotating shaft 901.

[0045] The inner cylinder 7 and the mounting cylinder 8 are rotatably connected. Four limiting holes 702 are provided at equal intervals along the circumference of the cavity 701. A pull rod 904 is provided at the outer end of the rotating shaft 901, and the blade 902 is inclined along the axial direction. In this structure, the inclined blade 902 can achieve the mixing of the inner and outer sides of the blue silica gel particles during axial movement.

[0046] The specific implementation process is as follows: turn on the feeding switch 804, and the previous blue silicone particles are discharged from the discharge port 801; turn off the feeding switch 804 and turn on the feeding switch 803 to introduce new blue silicone particles into the holding space from the inlet 8. The blue silicone particles act on the inside of the insulating arm 3 through the air hole 805; periodically pull the pull rod 904, so that the rotating shaft 901 and the blade 902 move axially relative to the inner cylinder 7 and the mounting cylinder 8. Then, the blade 902 acts on the blue silicone particles in the holding space to achieve inward and outward flipping, thereby improving the utilization rate of the blue silicone particles.

[0047] Many other changes and modifications can be made without departing from the concept and scope of this utility model. It should be understood that this utility model is not limited to the specific embodiments, and the scope of this utility model is defined by the appended claims.

Claims

1. A fully enclosed insulated arm for an easily replaceable visual drying system, characterized in that, include: An insulating arm (3) is provided with sealing plates (4) at both ends, and a plurality of insulating oil pipes (6) are provided in parallel between the two sealing plates (4) on the inner side of the insulating arm (3); The insulating arm (3) has side covers (13) at both ends for assembling the insulating oil pipe (6), and the sealing plate (4) is equipped with a through plate joint (5) for inserting into the end of the insulating oil pipe (6); A dryer (11) filled with blue silica gel particles is inserted laterally into the insulating arm (3), and the outer end of the dryer (11) is made transparent. The dryer (11) can be regularly maintained by visually observing the color state of the blue silica gel particles.

2. The fully enclosed insulated arm of the easily replaceable visual drying system according to claim 1, characterized in that, The insulating arm (3) has an upper metal arm (1) and a lower metal arm (2) at its two ends respectively. The upper metal arm (1) is connected to the lifting bucket (12) by a rotating pin, and the lower metal arm (2) is connected to the vehicle body (10) by a rotating pin.

3. The fully enclosed insulated arm of the easily replaceable visual drying system according to claim 2, characterized in that, The dryer (11) includes an mounting cylinder (8) and an inner cylinder (7) fitted inside it. A space for holding blue silica gel particles is formed between the outer side of the inner cylinder (7) and the inner side of the mounting cylinder (8).

4. The fully enclosed insulated arm of the easily replaceable visual drying system according to claim 3, characterized in that, The mounting cylinder (8) is open on one side, and its open section is provided with a feed inlet (802) and a discharge outlet (801) that are laterally connected to the accommodating space, respectively. Both are equipped with a loading switch (803) and a unloading switch (804). The mounting cylinder (8) is provided with vents (805) in the circumferential direction, and the diameter of the vents (805) is smaller than the diameter of the blue silicone particles.

5. The fully enclosed insulated arm of the easily replaceable visual drying system according to claim 3, characterized in that, It also includes a stirring assembly (9), which is composed of a rotating shaft (901) that is axially slidably disposed inside the inner cylinder (7), and the rotating shaft (901) is provided with blades (902) that pass through the inner cylinder (7) via a connecting rod (903).

6. The fully enclosed insulated arm of the easily replaceable visual drying system according to claim 5, characterized in that, The inner cylinder (7) includes a cavity (701) that collapses in one direction. The cavity (701) is provided with a limiting hole (702) along its length direction. The connecting rod (903) is slidably connected to the limiting hole (702). A tension spring (14) is provided axially between the inner end of the cavity (701) and the inner end of the rotating shaft (901).

7. The fully enclosed insulated arm of an easily replaceable visual drying system according to claim 6, characterized in that, The inner cylinder (7) and the mounting cylinder (8) are rotatably connected, and several limiting holes (702) are provided at equal intervals along the circumference of the cavity (701).

8. The fully enclosed insulated arm of the easily replaceable visual drying system according to claim 7, characterized in that, The outer end of the rotating shaft (901) is provided with a pull rod (904), and the blade (902) is inclined along the axial direction.