Cable shaft

Abstract

The utility model relates to the technical field of power equipment, in particular to a cable shaft which comprises a cable channel, a cable support fixed on the inner wall of the cable channel and a water collecting unit arranged at the bottom of the cable channel. The water collecting unit comprises a maintenance footpath arranged at the bottom of the cable channel, a drainage ditch arranged around the maintenance footpath, a water collecting pit arranged at the bottom of the cable channel and a cover plate located above the water collecting pit; and the drainage ditch is communicated with the water collecting pit. According to the scheme, rainwater permeating into the cable shaft is converged and collected, cable short circuit or electrical equipment damage caused by excessive accumulated water in the cable shaft is effectively prevented, the cover plate on the water collection pit can prevent maintenance personnel from falling into the water collection pit when entering from the top of a cable channel, and the safety of the maintenance personnel is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power equipment, specifically is a cable shaft. BACKGROUND

[0002] The cable shaft is a vertical channel inside the building used to accommodate and protect power cables, communication cables and other related facilities. It plays a crucial role in modern architecture, not only providing a safe and reliable path for cables, but also facilitating maintenance and management of cables.

[0003] As the main channel for the transmission of cables from one floor to another, the cable shaft ensures the effectiveness and safety of power supply and information transmission. At the same time, the structural design of the shaft also needs to be reasonably laid out to enable maintenance personnel to enter the shaft for daily inspection and cable replacement. The existing technology "a comprehensive dark excavation cable channel shaft" (publication number: CN113090269A) discloses a cable shaft, which is provided with a maintenance channel beside the cable channel, and the two are separated by a vertical partition wall. A fire door is provided on the partition wall between the cable channel rest platform and the maintenance platform of the maintenance channel at the same height, so that maintenance personnel can enter the corresponding cable channel of each floor through the stairs of the maintenance channel for maintenance. However, the existing technology still has the following technical problems:

[0004] In rainy and snowy weather, rainwater or melted snow may seep into the cable shaft, causing rainwater to accumulate inside the shaft, making the shaft an environment prone to moisture, which can cause line short circuits and power outages, and also cause cable aging, reduce the service life of power equipment, or cause equipment damage and electric shock safety risks. UTILITY MODEL CONTENT

[0005] The utility model provides a kind of cable shaft, can solve the problem that cable shaft in prior art is prone to rainwater intrusion, causes shaft cable circuit damage, causes power equipment damage and electric shock.

[0006] The present application provides the following technical scheme: a cable shaft, comprising a cable channel, a cable support fixed on the inner wall of the cable channel, and a water collecting unit arranged at the bottom of the cable channel; the water collecting unit comprises a maintenance walkway opened at the bottom of the cable channel, a drainage ditch arranged around the maintenance walkway, a water collecting pit opened at the bottom of the cable channel, and a cover plate located above the water collecting pit; the drainage ditch is communicated with the water collecting pit.

[0007] Beneficial effects: The drainage ditch around the bottom of the cable channel can converge and collect the rainwater that seeps into the shaft, the rainwater flows from the inner wall of the cable channel into the drainage ditch at the bottom and finally into the sump for collection, so that the accumulated water in the sump can be discharged regularly to prevent excessive water from causing cable short circuit or electrical equipment damage, the cover plate on the sump can prevent maintenance personnel from falling into the sump when entering from the top of the cable channel, ensuring the safety of maintenance personnel.

[0008] Further, the upper part of the cable channel is horizontally communicated with a cable trench, the wall at the intersection of the cable trench and the cable channel is a circular arc wall surface, and an arc-shaped crawling ladder is arranged on the circular arc wall surface.

[0009] Beneficial effects: The cable trench facilitates the laying of multiple layers of cables, the circular arc wall surface facilitates the reduction of damage to the outer sheath of the cables during wiring, and the arc-shaped crawling ladder improves the convenience of installation personnel entering the circular arc wall surface to lay and wire the cables.

[0010] Further, a manhole is arranged at the top of the cable channel.

[0011] Beneficial effects: The manhole enables maintenance personnel to easily enter and exit the cable channel, which is conducive to the installation, maintenance and repair of equipment in the cable channel, in the event of a fire or other emergency, the manhole can serve as an emergency evacuation passage to ensure the safe evacuation of personnel.

[0012] Further, a vertical crawling ladder is arranged on the inner wall of the cable channel, the vertical crawling ladder extends from the mouth of the manhole to the bottom of the cable channel, and the vertical crawling ladder is provided with a protective cage.

[0013] Beneficial effects: The vertical crawling ladder provides a direct and stable access for technicians to enter the cable channel for inspection, repair or emergency treatment, and the protective cage can provide protection to ensure safety when climbing the ladder.

[0014] Further, a movable hanging ladder is arranged at the bottom of the vertical crawling ladder.

[0015] Beneficial effects: The movable hanging ladder can be moved and installed at the required position in the cable channel to facilitate maintenance and repair of maintenance personnel and improve convenience.

[0016] Further, the cable support includes an arc-shaped section support, a vertical support and a horizontal support; the arc-shaped section support is fixed between the side walls at the intersection of the cable trench and the cable channel, the vertical support is fixed at the middle part of the cable channel, and the horizontal support is fixed at the bottom of the cable channel.

[0017] Beneficial effects: Arc-shaped brackets, vertical brackets, and horizontal brackets facilitate the installation, fixing, and neat arrangement of cables in the required direction when laying cables in cable channels, providing stable support. They can also be used to separate different types of cables and prevent interference between them. Attached Figure Description

[0018] Figure 1 This is the main structural view of the present invention.

[0019] Figure 2 for Figure 1 Sectional view of AA. Detailed Implementation

[0020] The following detailed description illustrates the specific implementation method:

[0021] The markings in the accompanying drawings include: wall retaining wall 1, vertical support 2, cable 3, maintenance walkway 4, sump 5, cover plate 6, cable channel 7, curved ladder 8, horizontal support 9, movable hanging ladder 10, vertical ladder 11, manhole 12, curved section support 13, cable trench 14.

[0022] Example 1

[0023] like Figure 1 and Figure 2 As shown, a cable shaft includes a cable channel 7 enclosed by a reinforced concrete retaining wall 1, a cable bracket fixed to the inner wall of the cable channel 7, a manhole 12 opened at the top of the cable channel 7, and a water collection unit set at the bottom of the cable channel 7; the upper part of the cable channel 7 is also horizontally connected to a cable trench 14, the wall at the intersection of the cable trench 14 and the cable channel 7 is an arc wall, and the bottom of the cable channel 7 is also provided with a cable trench (omitted in the figure), and the direction of the cable trench at the bottom of the cable channel 7 can be opened as needed, so that the cable 3 can be introduced from the bottom of the cable channel 7, laid upward along the cable channel 7, and led out from the upper cable trench 14.

[0024] like Figure 1 As shown, the cable support includes an arc-shaped support 13, a vertical support 2, and a horizontal support 9. The arc-shaped support 13 is fixed between the side walls at the junction of the upper cable trench 14 and the cable channel 7, the vertical support 2 is fixed to the inner wall of the middle section of the cable channel 7, and the horizontal support 9 is fixed to the bottom of the cable channel 7. The arc-shaped support 13, the vertical support 2, and the horizontal support 9 are used to fix and support the cable 3 when it is laid in the cable channel 7.

[0025] like Figure 2As shown, the water collecting unit includes a square maintenance walkway 4 opened at the bottom of the cable channel 7, a drainage ditch arranged around the maintenance walkway 4, a water collecting pit 5 opened at the bottom of the cable channel 7, and a cover plate 6 located above the water collecting pit 5; the maintenance walkway 4 facilitates the maintenance personnel to step on, and meanwhile, a horizontal support 9 is fixed on the maintenance walkway 4; the drainage ditch around the maintenance walkway 4 is communicated with the water collecting pit 5, so that the rainwater infiltrated into the shaft can converge in the drainage ditch and then flow into the water collecting pit 5 for collection, so as to facilitate the periodic drainage of the accumulated water in the water collecting pit 5, prevent the cable from being short-circuited or the electrical equipment from being damaged due to excessive accumulated water, and prevent the maintenance personnel from falling into the water collecting pit 5 when entering from the top of the cable channel 7, thereby ensuring the safety of the maintenance personnel.

[0026] The retaining wall 1 at the intersection of the cable channel 7 and the upper cable trench 14 is a circular arc wall surface, and an arc-shaped ladder 8 is arranged on the circular arc wall surface. The circular arc wall surface facilitates the reduction of damage to the outer sheath of the cable 3 during wiring, and the arc-shaped ladder 8 can improve the convenience of installation personnel to enter the circular arc wall surface to lay and wire the cable.

[0027] A vertical ladder 11 is arranged on the inner wall of the cable channel 7, and the vertical ladder 11 extends from the mouth of the manhole well 12 to the bottom of the cable channel 7 and is provided with a protective cage. The vertical ladder 11 provides a direct and stable access for the installation and maintenance personnel to enter the cable channel 7 from the manhole well 12, facilitates the entry into the cable channel 7 for inspection, maintenance or emergency treatment, and the protective cage can play a protective role to ensure the safety during climbing up and down the ladder.

[0028] The bottom of the vertical ladder 11 is further provided with a movable hanging ladder 10. The movable hanging ladder 10 can be moved and installed at the required position in the cable channel 7 to facilitate the maintenance and repair of the maintenance personnel and improve the convenience.

[0029] The use method of the structure is as follows: the cable is introduced from the bottom of the cable channel, laid upward along the cable channel, and led out from the upper cable trench, and is fixed and supported by the horizontal support, the vertical support and the arc-shaped support along the way, and the arc-shaped ladder facilitates the installation personnel to step on when wiring at the circular arc wall surface; when the internal facilities of the cable channel need to be maintained and the water collecting pit needs to be checked, the maintenance personnel can enter from the manhole well, enter the bottom of the cable channel by relying on the vertical ladder, and the movable hanging ladder can be flexibly moved and adjusted in position to improve the use convenience of the maintenance personnel.

[0030] The above is only an embodiment of the present application, and the present application is not limited to the field of the embodiment, and the common knowledge such as specific structures and properties in the scheme is not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of the claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A cable shaft, characterized by: The cable channel comprises a cable channel, a cable support fixed on the inner wall of the cable channel and a water collecting unit arranged at the bottom of the cable channel; the water collecting unit comprises an inspection walkway opened at the bottom of the cable channel, a drainage ditch arranged around the inspection walkway, a water collecting pit opened at the bottom of the cable channel and a cover plate located above the water collecting pit; the drainage ditch is communicated with the water collecting pit.

2. A cable shaft according to claim 1, characterized in that: The upper part of the cable channel is horizontally communicated with a cable trench, and the wall at the intersection of the cable trench and the cable channel is a circular arc wall surface, and an arc-shaped crawling ladder is arranged on the circular arc wall surface.

3. A cable shaft according to claim 2, characterised in that: A manhole is arranged at the top of the cable channel.

4. A cable shaft according to claim 3, characterised in that: A vertical crawling ladder is arranged on the inner wall of the cable channel, the vertical crawling ladder extends from the mouth of the manhole to the bottom of the cable channel, and the vertical crawling ladder is provided with a protective cage.

5. A cable shaft according to claim 4, characterised in that: An active hanging ladder is arranged at the bottom of the vertical crawling ladder.

6. A cable shaft according to claim 5, characterised in that: The cable support comprises an arc-shaped section support, a vertical support and a horizontal support; the arc-shaped section support is fixed between the side walls at the intersection of the cable trench and the cable channel, the vertical support is fixed at the middle part of the cable channel, and the horizontal support is fixed at the bottom of the cable channel.

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