Insulated pull rod transport case

CN224916603UActive Publication Date: 2026-10-30XIAN XIKAI POWER EQUIP INTELLIGENT SERVICE CO LTD +1
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Patent Information

Application Number
CN202522433545.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-17
Publication Date
2026-10-30
Estimated Expiration
2035-11-17

AI Technical Summary

Technical Problem

受潮后的绝缘拉杆,在额定工作电压下极易发生内部沿面闪络,甚至引发突发性电击穿,不仅会造成高压断路器、隔离开关等关键设备不可逆损坏乃至爆炸,还会触发电网跳闸、供电中断等恶性故障

Benefits of technology

本实用新型一种绝缘拉杆运输箱,盖板上一侧设置有通气阀,另一侧设置有排气阀,通过通气阀向运输箱内注入氮气,在注氮时排气阀将运输箱体内置换出的空气从排气阀排出,来减小空气中所含水气防止绝缘拉杆受潮;此外,氮气能避免与绝缘拉杆部件发生氧化反应。

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Abstract

The utility model belongs to the transport case technical field discloses an insulating pull rod transport case, including the box, the box one end is provided with the apron, the other end is provided with the bottom plate, be provided with the mounting seat on the apron, mounting seat one side is provided with the breather valve, the other side is provided with the exhaust valve, the breather valve and exhaust valve all are connected with apron fixedly, the apron is connected with the box fixedly through the fastener, inject nitrogen into the transport case through the breather valve, be provided with the support block and the slide rail on the bottom plate, the slide rail is along horizontal direction and is established on the bottom plate, be provided with the slide plate between the support block and the slide rail, the support block fixed mounting is on the slide plate, the slide plate moves up and down along the slide rail, through the fastener and the bottom plate detachable connection, when nitrogen injection, the exhaust valve will the air that the transport case body built -in replacement is discharged from the exhaust valve, to reduce the moisture contained in the air prevents the insulating pull rod from being damp, in addition, nitrogen can avoid and the oxidation reaction of insulating pull rod part.
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Description

Technical Field

[0001] This utility model belongs to the field of transport box technology and relates to an insulated pull rod transport box. Background Technology

[0002] Insulating tie rods, as key insulating supports and operational transmission components for core high-voltage power equipment such as high-voltage circuit breakers and disconnectors, are crucial components ensuring the breaking performance and insulation isolation effect of the equipment, directly impacting the safe and stable operation of the power system and the reliability of the power grid. Insulating tie rods are made of epoxy glass cloth composite material. Through a composite molding process of epoxy resin and glass cloth, they possess excellent aging resistance, mechanical load-bearing capacity, and insulation dielectric loss characteristics, meeting the stringent performance requirements of high-voltage equipment for insulating components.

[0003] During warehousing, long-distance transportation, and other transshipment processes, if insulated tie rods are not effectively sealed and protected, their internal porous structure will continuously absorb moisture from the air. As exposure time increases, the degree of moisture absorption gradually deepens, significantly reducing the insulation strength of the material. This also triggers a chain reaction of deterioration effects, such as increased dielectric loss and localized electric field distortion. Moisturized insulated tie rods are highly susceptible to internal surface flashover under rated operating voltage, and may even lead to sudden electrical breakdown. This can cause irreversible damage or even explosions to critical equipment such as high-voltage circuit breakers and disconnect switches, and can also trigger severe faults such as power grid tripping and power outages. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an insulated pull rod transport box.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides an insulated pull rod transport box, including a box body, a cover plate at one end of the box body and a bottom plate at the other end, a mounting seat on the cover plate, a vent valve on one side of the mounting seat and an exhaust valve on the other side, the vent valve and the exhaust valve are fixedly connected to the cover plate, and the cover plate is fixedly connected to the box body by fasteners.

[0006] Furthermore, the base plate is provided with a support block and a slide rail. The slide rail is arranged horizontally on the base plate, and a slide plate is provided between the support block and the slide rail. The support block is fixedly installed on the slide plate, and the slide plate moves up and down along the slide rail and is detachably connected to the base plate by fasteners.

[0007] Furthermore, the skateboard has through holes on both sides and a slot on the base plate, through which fasteners can be detachably connected.

[0008] Furthermore, guide plates are provided on both sides of the cover plate, and the guide plates are fixedly connected to the cover plate; a first insertion hole is provided on the cover plate, and a first threaded hole is provided on the upper end face of the box body, and fasteners pass through the first insertion hole from top to bottom and are detachably connected to the first threaded hole.

[0009] Furthermore, the inner wall of the box is provided with pads, and the outer wall of the box is provided with side rods.

[0010] Furthermore, the pad has grooves at both ends, and a hanging block is provided in the groove. The hanging block is fixedly connected to the insulating pull rod by a fixing strap.

[0011] Furthermore, a second insertion hole is provided at the top of the side rod, which is used to insert a plug block, and the plug block abuts against the upper end of the cover plate.

[0012] Furthermore, the upper end of the mounting base is provided with a pull rod and a lifting ring. The two ends of the pull rod are fixedly connected to the mounting base, and the lifting ring is fixedly installed on the upper end of the pull rod for fixed connection with the hook of the lifting device.

[0013] Furthermore, the housing and cover are made of aluminum alloy.

[0014] Furthermore, the fastener is a bolt.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This utility model discloses an insulated pull rod transport box. A vent valve is provided on one side of the cover plate, and an exhaust valve is provided on the other side. Nitrogen gas is injected into the transport box through the vent valve. During nitrogen injection, the exhaust valve discharges the air displaced in the transport box, thereby reducing the moisture content in the air and preventing the insulated pull rod from getting damp. In addition, nitrogen gas can prevent oxidation reaction with the insulated pull rod components.

[0016] This utility model discloses an insulated pull rod transport box. The bottom of the box body is provided with a base plate, and two parallel slide rails are provided on the base plate. A sliding plate is provided on the slide rails. The sliding plate slides along the direction of the slide rails to adjust the position of the support block on the base plate, which facilitates finding the best support position for the insulated pull rod and helps to improve the adaptability of placing different models of insulated pull rods.

[0017] This utility model discloses an insulated pull rod transport box. The inner side wall of the box is provided with a pad. When the insulated pull rod shakes inside the box or is impacted by external force, the pad can effectively absorb energy and prevent the insulated pull rod from directly colliding with the side wall of the box, thereby preventing surface damage or the generation of internal micro-cracks.

[0018] This utility model discloses an insulated pull rod transport box. The pad has grooves at both ends, and a hanging block is set in the groove. The hanging block has a hanging hole. The insulated pull rod is tied and fixed in the box by a fixing strap to prevent the insulated pull rod from shaking or moving in the box during transportation and to improve the stability of the insulated pull rod. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an insulated pull rod transport box according to the present invention; Figure 2 This is a schematic diagram of the structure of the base plate in an embodiment of this utility model; Figure 3 This is a schematic diagram of the cover plate in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the internal structure of the box in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the groove structure in an embodiment of this utility model.

[0020] Figure label: 1-Box body; 11-First threaded hole; 12-Padded block; 13-Groove; 131-Hanging block; 2-Cover plate; 21-First insertion hole; 22-Guide plate; 31-Ventilation valve; 32-Exhaust valve; 4-Mounting base; 41-Pull rod; 42-Lifting ring; 5-Base plate; 51-Support block; 52-Slide rail; 521-Slide plate; 522-Through hole; 523-Slot; 6-Side rod; 61-Second insertion hole. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] Example 1 This utility model discloses an insulated pull rod transport box, comprising a box body 1, a cover plate 2 at one end of the box body 1, and a bottom plate 5 at the other end. A mounting base 4 is provided on the cover plate 2, a vent valve 31 is provided on one side of the mounting base 4, and an exhaust valve 32 is provided on the other side. Both the vent valve 31 and the exhaust valve 32 are fixedly connected to the cover plate 2, and the cover plate 2 is fixedly connected to the box body 1 by fasteners.

[0023] Specifically, an insulated pull-rod transport box includes a box body 1, a cover plate 2, a mounting base 4, a bottom plate 5, and side rods 6. For example... Figure 4As shown, a first threaded hole 11 is provided along the side wall at the upper end of the housing 1, and a cover plate 2 is provided at the upper end of the housing 1, as shown. Figure 3 As shown, the outer ring of the cover plate 2 is surrounded by a first insertion hole 21, and a first threaded hole 11 is adapted to the first insertion hole 21. Fasteners pass through the first insertion hole 21 from top to bottom and are threaded into the first threaded hole 11. In this embodiment, the fasteners are bolts. A vent valve 31 is provided at one end of the cover plate 2, and an exhaust valve 32 is provided at the other end. After the cover plate 2 is fixed to the housing 1, nitrogen gas is injected into the housing 1 through the vent valve 31. When injecting nitrogen gas, the exhaust valve 32 is opened to discharge the air displaced from the housing 1. High-purity nitrogen gas is filled into the sealed housing 1 through the vent valve 31.

[0024] Insulating rods are typically made of epoxy glass cloth composite material, which is a porous material. If exposed to air, it will continuously absorb moisture, which will greatly reduce the insulation strength of the material. That is, a damp insulating rod may experience internal surface flashover or breakdown when energized. Filling the box with nitrogen replaces the air inside the box, which on the one hand reduces the moisture content in the air inside the box, and on the other hand, nitrogen is chemically stable, so it avoids oxidation reaction with the insulating rod components, which is beneficial to improving the mechanical properties of the equipment materials.

[0025] It should be noted that nitrogen, as a chemically stable inert gas, creates a dry and stable environment inside chamber 1. This not only effectively prevents oxidation reactions with the insulating tie rod components but also further reduces the possibility of the insulating tie rod absorbing moisture, thus improving the mechanical properties of the equipment materials. To ensure that the air is fully replaced by nitrogen, an oxygen concentration detector is used to monitor the nitrogen level in real time at the exhaust valve 32 during the nitrogen filling process through the vent valve 31. When the oxygen concentration drops to an extremely low level and remains stable, it indicates that the air has been fully replaced by nitrogen, and nitrogen filling is stopped.

[0026] The inner wall of the enclosure 1 is equipped with pads 12 to prevent the insulating pull rod from colliding with the inner wall of the enclosure 1 during transportation and causing damage to the equipment. The pads 12 are typically made of cushioning materials such as EPE and rubber. When the insulating pull rod shakes inside the enclosure 1 or is subjected to external impact, the pads 12 effectively absorb energy, preventing direct collision between the insulating pull rod and the side wall of the enclosure 1, thereby preventing surface damage or the formation of internal micro-cracks. Figure 4 As shown.

[0027] like Figure 5As shown, the pad 12 has grooves 13 at both ends, and a hanging block 131 is provided in the groove 13. The hanging block 131 has a hanging hole, which is used to provide a connection point for the fixing strap. The insulating pull rod is tied and fixed in the box 1 by the fixing strap to prevent the insulating pull rod from shaking or moving in the box 1 during transportation, thereby improving the stability of the insulating pull rod. It should be noted that the hanging block 131 is set in the groove 13 to avoid the protrusion of the hanging block 131 from colliding with the insulating pull rod.

[0028] A side rod 6 is provided on the outer side wall of the box body 1. A second insertion hole 61 is provided at the top of the side rod 6. The second insertion hole 61 is used to insert a plug, and the plug abuts against the upper end of the cover plate 2. Specifically, the side rod 6 is connected to the outer side wall of the box body 1. The second insertion hole 61 is set higher than the upper end surface of the cover plate 2, and the plug inserted into the second insertion hole 61 abuts against the upper end of the cover plate 2, that is, it fixes the cover plate 2 on the upper part of the box body 1, preventing the cover plate 2 from detaching from the upper end of the box body 1 when the cover plate 2 is lifted, which helps to improve the stability and safety of the fastening between the cover plate 2 and the box body 1.

[0029] like Figure 3 As shown, guide plates 22 are provided at the bottom of both sides of the cover plate 2. The guide plates 22 play a limiting and guiding role when the cover plate 2 is fastened to the upper end of the box body 1, such as... Figure 1 As shown, the guide plate 22 is nested on both sides of the upper end of the box 1, which helps to improve the accuracy of the cover plate 2 being fastened to the top of the box 1.

[0030] The container body 1 and cover plate 2 are made of aluminum alloy, and the fasteners are stainless steel screws. Aluminum alloy offers advantages such as light weight, high strength, and corrosion resistance, meeting the requirements for use in various environments. Stainless steel screws provide excellent corrosion resistance and mechanical properties, ensuring a strong and reliable connection.

[0031] like Figure 3 He Ru Figure 1 As shown, a mounting base 4 is provided on the upper end of the cover plate 2. The mounting base 4 is used to connect the pull rod 41. Before the cover plate 2 is fastened to the box body 1, the cover plate 2 can be hoisted and installed using the pull rod 41, which is convenient and quick. After the cover plate 2 is fastened to the box body 1, the pull rod 41 is used to hoist and transport the entire transport box, realizing flexible handling of the transport box. Both ends of the pull rod 41 are fixedly connected to the mounting base 4, which improves the stability of the connection between the pull rod 41 and the cover plate 2. A lifting ring 42 is provided on the pull rod 41, which is used to cooperate with the hook of the lifting device for convenient lifting operation. A support block 51 is provided on the upper end of the base plate 5 to support the insulating pull rod placed inside the box body 1, thereby improving the stability of the insulating pull rod.

[0032] The two ends of the pull rod 41 are fixedly connected to the mounting base 4, which helps to improve the stability of the connection with the cover plate 2. The pull rod 41 is provided with a lifting ring 42, which is used to cooperate with the hook of the lifting device for lifting.

[0033] like Figure 2 As shown, the base plate 5 is provided with two parallel slide rails 52, and a slide plate 521 is provided on the slide rails 52. The slide plate 521 slides along the direction of the slide rails 52 to adjust the position of the support block 51 on the base plate 5, so as to find the best support position for the insulating rod and improve the adaptability to different models of insulating rods. The slide plate 521 is provided with a support block 51, and through holes 522 are opened at both ends of the slide plate 521. The slide rails 52 are provided with slots 523. The through holes 522 and slots 523 are matched. Fasteners pass through the through holes 522 and are inserted into the slots 523 to position and limit the slide plate 521, that is, to fix the support position of the support block 51 to adapt to insulating rods of different lengths.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

Claims

1. An insulated pull-rod transport box, characterized in that: The enclosure includes a housing (1), one end of which is provided with a cover plate (2) and the other end with a base plate (5). A mounting seat (4) is provided on the cover plate (2). A vent valve (31) is provided on one side of the mounting seat (4) and an exhaust valve (32) is provided on the other side. Both the vent valve (31) and the exhaust valve (32) are fixedly connected to the cover plate (2). The cover plate (2) is fixedly connected to the housing (1) by fasteners.

2. The insulated pull rod transport box according to claim 1, characterized in that: The base plate (5) is provided with a support block (51) and a slide rail (52). The slide rail (52) is arranged horizontally on the base plate (5). A slide plate (521) is provided between the support block (51) and the slide rail (52). The support block (51) is fixedly installed on the slide plate (521). The slide plate (521) moves up and down along the slide rail (52) and is detachably connected to the base plate (5) by fasteners.

3. The insulated pull rod transport box according to claim 2, characterized in that: The sliding plate (521) has through holes (522) on both sides, and the base plate (5) has a slot (523). Fasteners pass through the through holes (522) and are detachably connected to the slot (523).

4. The insulated pull rod transport box according to claim 1, characterized in that: Guide plates (22) are provided on both sides of the cover plate (2), and the guide plates (22) are fixedly connected to the cover plate (2); The cover plate (2) is provided with a first insertion hole (21), and the upper end face of the box body (1) is provided with a first threaded hole (11). The fastener passes through the first insertion hole (21) from top to bottom and is detachably connected to the first threaded hole (11).

5. The insulated pull rod transport box according to claim 4, characterized in that: The inner wall of the box (1) is provided with a pad (12), and the outer wall of the box (1) is provided with a side rod (6).

6. The insulated pull rod transport box according to claim 5, characterized in that: The pad (12) has grooves (13) at both ends, and a hanging block (131) is provided in the groove (13). The hanging block (131) is fixedly connected to the insulating pull rod by a fixing strap.

7. The insulated pull rod transport box according to claim 5, characterized in that: The top end of the side rod (6) is provided with a second insertion hole (61), which is used to insert a plug block, and the plug block abuts against the upper end of the cover plate (2).

8. The insulated pull rod transport box according to claim 1, characterized in that: The upper end of the mounting base (4) is provided with a pull rod (41) and a lifting ring (42). The two ends of the pull rod (41) are fixedly connected to the mounting base (4), and the lifting ring (42) is fixedly installed on the upper end of the pull rod (41) for fixed connection with the hook of the lifting device.

9. The insulated pull rod transport box according to claim 1, characterized in that: The box body (1) and cover plate (2) are made of aluminum alloy.

10. The insulated pull rod transport box according to claim 9, characterized in that: The fastener is a bolt.