CN218040674U - Prevent tensile excessive protective cradle of cable - Google Patents
Prevent tensile excessive protective cradle of cable Download PDFInfo
- Publication number
- CN218040674U CN218040674U CN202222160950.3U CN202222160950U CN218040674U CN 218040674 U CN218040674 U CN 218040674U CN 202222160950 U CN202222160950 U CN 202222160950U CN 218040674 U CN218040674 U CN 218040674U
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- cable
- horizontal insulating
- supporting plate
- stretching
- fixed rod
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Abstract
The utility model relates to a protective bracket for preventing the over-stretching of cables, which comprises a horizontal insulating supporting plate, a plurality of cable brackets and at least two rigid hoops; the cable support comprises a fixed rod and a supporting arm, the fixed rod is perpendicular to the ground and fixedly mounted on the side wall of the subway station, and the supporting arm is vertically and fixedly mounted on the side face of the fixed rod and perpendicular to the side wall of the subway station; the horizontal insulating supporting plate is arranged on the top surface of the supporting arm, and the plurality of cable supports are respectively positioned at the two ends and the middle part of the horizontal insulating supporting plate; the rigid anchor ears are fixedly arranged at positions close to two ends of the horizontal insulating support plate respectively, and the cable intermediate connector is arranged in the middle of the horizontal insulating support plate when a cable is installed. The utility model adds the horizontal insulating supporting plate to the position of the middle joint of the ring network cable to horizontally support the middle joint of the cable; fixing cables in front of and behind the cable intermediate connector by using a rigid hoop; can show to slow down cable intermediate head because of tensile excessively and expose, improve cable equipment operation stability.
Description
Technical Field
The utility model belongs to the technical field of the protective bracket, to outdoor (overhead station) or the related special position of department's looped netowrk cable intermediate head of plugging into with the ground station of ground station, in particular to prevent tensile excessive protective bracket of cable.
Background
The subway 35kV ring network cable laying is a system project, compared with a cable body, a cable intermediate joint is a relatively weak link, most of cable line faults are prone to occurring at the cable intermediate joint, the safe operation of the cable line is directly affected by the manufacturing process and the maintenance mode of the cable intermediate joint, the equipment degradation operation is seriously caused, and the subway outage risk exists.
When the subway station arranged outdoors suffers frost weather, the temperature difference between day and night is large, and when the weather is continuously low at (-15 ℃), the shrinkage of the cable is serious, so that the copper shield at the end part of the middle head and the grounding connecting line are subjected to transverse force in opposite directions, excessive stretching is caused, the copper shield and the grounding connecting line are separated from two sections of lap joints, and the protection effect is lost. Particularly, at the connection position between an overground station and an underground station, the temperature difference of a cable intermediate joint at the position is small because one end of the cable intermediate joint is connected to an interval, and the temperature difference of the other end of the cable intermediate joint is large, so that the left side and the right side are stressed unevenly, the phenomena of sheath displacement, damage to a naked shielding belt, tearing of an armor belt and the like are caused, electric field distortion is caused seriously, the insulation is damaged by heating, partial discharge occurs, even the semi-conductive paint of the cable fails and falls off, and the breakdown accident of the cable intermediate joint occurs.
In the actual cable laying process, at present, no effective fixing measures are taken for cables at two ends of a cable intermediate joint, and modes such as a ribbon and a rigid hoop are usually adopted. The ribbon receives environmental change factor to influence seriously, if the unscheduled change then can become fragile, easy book, can't effectively fix the cable, adopts the rigidity staple bolt only to accomplish the prevention to the cable and invade limit effect, can't play fixed cable position and prevent its tensile excessive effect.
Disclosure of Invention
The utility model discloses a solve the technical problem that exists among the well-known technique and provide a prevent the tensile excessive protective cradle of cable, effectively consolidate the cable intermediate head, reduce cable operation hidden danger, improve construction quality.
The utility model discloses a following technical scheme: a protective bracket for preventing a cable from being stretched excessively comprises a horizontal insulating supporting plate, a plurality of cable brackets and at least two rigid hoops; the cable support comprises a fixed rod and a supporting arm, the fixed rod is vertical to the ground and fixedly arranged on the side wall of the subway station, and the supporting arm is vertically and fixedly arranged on the side surface of the fixed rod and vertical to the side wall of the subway station; the horizontal insulating supporting plate is arranged on the top surface of the supporting arm, and the plurality of cable supports are respectively positioned at two ends and the middle part of the horizontal insulating supporting plate; the rigid anchor ears are fixedly arranged at positions close to two ends of the horizontal insulating support plate respectively, and the cable middle connector is arranged in the middle of the horizontal insulating support plate when a cable is installed.
Preferably, the horizontal insulating support plate is made of an epoxy insulating plate to meet the requirement of insulating voltage class.
Preferably, a plurality of angle steels are fixedly installed at the bottom of the horizontal insulating supporting plate, and the insulating plate is prevented from being exposed outdoors for a long time to cause brittle failure (the insulating plate is easily brittle failure due to the influence of factors such as temperature and humidity when placed in the outside air for a long time) by additionally installing the angle steels.
Preferably, the width of the horizontal insulating supporting plate is smaller than the length of the supporting arm.
Preferably, the angle steel is arranged along the long edge of the horizontal insulating supporting plate and is positioned between the two cable supports, and the length of the angle steel is smaller than the distance between the two cable supports.
Preferably, the rigid hoop is a special hoop matched with an AC35kV single-core high-voltage cable.
Preferably, the fixing rod and the supporting arm are both metal tubes with mounting grooves formed in one side; the one side that the support arm was equipped with the mounting groove is up, the dead lever is equipped with the one side installation support arm of mounting groove.
Preferably, one end of the supporting arm is fixedly provided with a mounting foot, and the mounting foot and the fixed rod are fixedly arranged through a T-shaped bolt; the supporting arm and the horizontal insulating supporting plate are fixedly installed through a T-shaped bolt.
Preferably, when the cable support is of a multilayer structure, a plurality of support arms are fixedly mounted on each fixing rod.
The utility model has the advantages and positive effect:
1. the utility model discloses an increase horizontal insulating layer board to looped netowrk cable intermediate head position, give cable intermediate head horizontal stay to balanced original cable intermediate head forms the angle and then the horizontal pulling force of the left and right sides of increase because unsettled placing.
2. The utility model discloses a rigidity staple bolt is fixed the cable around to the cable intermediate head position to the cable under the balanced horizontal state plays the indirect fixed action in centering intermediate head position because the horizontal pulling force that the difference in temperature produced.
3. The utility model discloses can show and slow down cable intermediate head because of tensile excessive and expose, reduce looped netowrk cable intermediate head and puncture the trouble, show and improve cable plant operation stability, avoid the subway operational risk because of the equipment degradation causes.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1;
FIG. 2 is a schematic view of the structure of the cable holder according to example 1;
FIG. 3 is a schematic view of the entire structure of embodiment 2;
FIG. 4 is a schematic view showing the construction of the cable holder according to embodiment 2;
fig. 5 is a schematic structural view of the rigid hoop.
In the figure, 1-horizontal insulating pallet; 2-a cable support; 201-fixing rod; 202-a support arm; 3, rigid anchor ear; 4-angle steel; 5-mounting a pin; 6-T bolt; 7-a cable; 701-cable intermediate joint.
Detailed Description
To further disclose the contents, features and functions of the present invention, the following examples are given in detail in conjunction with the accompanying drawings.
Example 1: referring to fig. 1, 2 and 5, a protective bracket for preventing a cable from being stretched excessively comprises a horizontal insulating supporting plate 1, three cable brackets 2 and two rigid hoops 3; the rigid hoop 3 is a special hoop matched with an AC35kV single-core high-voltage cable. The horizontal insulating supporting plate 1 is made of an epoxy resin insulating plate so as to meet the requirement of insulating voltage class, and has the length of 6M and the width of 0.6M.
The cable support 2 comprises a fixed rod 201 and a support arm 202, the fixed rod 201 is perpendicular to the ground and is fixedly arranged on the side wall of the subway station, and the support arm 202 is vertically and fixedly arranged on the side surface of the fixed rod 201 and is perpendicular to the side wall of the subway station; the fixing rod 201 and the supporting arm 202 are both metal tubes with mounting grooves formed in one side; the one side that support arm 202 was equipped with the mounting groove is up, dead lever 201 is equipped with the one side installation support arm 202 of mounting groove. A mounting foot 5 is fixedly mounted at one end of the supporting arm 202, and the mounting foot 5 and the fixing rod 201 are fixedly mounted through a T-shaped bolt 6; the supporting arm 202 is fixedly installed with the horizontal insulating supporting plate 1 through a T-shaped bolt 6.
The horizontal insulating supporting plate 1 is arranged on the top surface of the supporting arm 202, and the three cable brackets 2 are respectively positioned at two ends and the middle part of the horizontal insulating supporting plate 1; the rigid anchor ears 3 are respectively and fixedly arranged at the positions close to the two ends of the horizontal insulating supporting plate 1, and the cable middle connector 701 is arranged in the middle of the horizontal insulating supporting plate 1 when the cable 7 is installed. The cable 7 fixed at the rigid hoop 3 is marked, so that the situation that whether the cable 7 is displaced or not is checked in a tour in the future.
Four angle irons 4 are fixedly arranged at the bottom of the horizontal insulating supporting plate 1, and the insulating plate is prevented from being exposed outdoors for a long time to cause brittle failure (the insulating plate is placed in the outside air for a long time and is easily brittle failure due to the influence of factors such as temperature and humidity). The width of the horizontal insulating support plate 1 is smaller than the length of the support arm 202. The angle steel 4 is arranged along the long edge of the horizontal insulating supporting plate 1 and is positioned between the two cable supports 2, and the length of the angle steel 4 is smaller than the distance between the two cable supports 2.
Example 2: referring to fig. 3, 4 and 5, in the protection bracket for preventing the cable from being stretched excessively, when the cable bracket 2 has a double-layer structure, two support arms 202 are fixedly mounted on each fixing rod 201; the cable holder 2 can hold two cables 7. The other structure is substantially the same as that of embodiment 1.
Although the preferred embodiments of the present invention have been described, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention. All of which fall within the scope of the present invention.
Claims (9)
1. The utility model provides a prevent the excessive protective cradle of cable stretching which characterized in that: the cable fixing device comprises a horizontal insulating supporting plate, a plurality of cable supports and at least two rigid hoops; the cable support comprises a fixed rod and a supporting arm, the fixed rod is perpendicular to the ground and fixedly mounted on the side wall of the subway station, and the supporting arm is vertically and fixedly mounted on the side face of the fixed rod and perpendicular to the side wall of the subway station; the horizontal insulating supporting plate is arranged on the top surface of the supporting arm, and the plurality of cable supports are respectively positioned at the two ends and the middle part of the horizontal insulating supporting plate; the rigid anchor ears are fixedly arranged at positions close to two ends of the horizontal insulating support plate respectively, and the cable intermediate connector is arranged in the middle of the horizontal insulating support plate when a cable is installed.
2. A protective bracket for preventing over-stretching of a cable according to claim 1, wherein: the horizontal insulating supporting plate is made of an epoxy resin insulating plate.
3. A protective bracket for preventing over-stretching of a cable according to claim 1, wherein: and a plurality of angle steels are fixedly arranged at the bottom of the horizontal insulating supporting plate.
4. A protective bracket according to claim 3 for preventing over-stretching of a cable, wherein: the angle steel is arranged along the long edge of the horizontal insulating supporting plate and is positioned between the two cable supports, and the length of the angle steel is smaller than the distance between the two cable supports.
5. A protective bracket for preventing over-stretching of a cable according to claim 1, wherein: the width of the horizontal insulating supporting plate is smaller than the length of the supporting arm.
6. A protective bracket for preventing over-stretching of a cable according to claim 1, wherein: the rigid hoop is a special hoop matched with an AC35kV single-core high-voltage cable.
7. A protective bracket for preventing over-stretching of a cable according to claim 1, wherein: the fixed rod and the supporting arm are both metal tubes with mounting grooves formed in one sides; the one side that the support arm was equipped with the mounting groove is up, the dead lever is equipped with the one side installation support arm of mounting groove.
8. A protective bracket for preventing over-stretching of a cable according to claim 7, wherein: a mounting foot is fixedly mounted at one end of the supporting arm, and the mounting foot and the fixed rod are fixedly mounted through a T-shaped bolt; the supporting arm and the horizontal insulating supporting plate are fixedly installed through a T-shaped bolt.
9. A protective bracket according to any one of claims 1 to 8 for preventing over-stretching of a cable, wherein: when the cable support is of a multilayer structure, a plurality of supporting arms are fixedly arranged on each fixing rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222160950.3U CN218040674U (en) | 2022-08-12 | 2022-08-12 | Prevent tensile excessive protective cradle of cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222160950.3U CN218040674U (en) | 2022-08-12 | 2022-08-12 | Prevent tensile excessive protective cradle of cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218040674U true CN218040674U (en) | 2022-12-13 |
Family
ID=84347860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222160950.3U Active CN218040674U (en) | 2022-08-12 | 2022-08-12 | Prevent tensile excessive protective cradle of cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218040674U (en) |
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2022
- 2022-08-12 CN CN202222160950.3U patent/CN218040674U/en active Active
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