CN111564252B

CN111564252B - Durable transmission special cable suitable for alpine regions

Info

Publication number: CN111564252B
Application number: CN202010409580.5A
Authority: CN
Inventors: 朱永松
Original assignee: Jiangsu Haosi Appliances Technology Co ltd
Current assignee: JIANGSU HAOSI APPLIANCES TECHNOLOGY Co.,Ltd.
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2021-06-29
Anticipated expiration: 2040-05-14
Also published as: CN111564252A

Abstract

The invention discloses a durable transmission special cable suitable for alpine regions, which comprises an outer sheath and an armor layer from outside to inside, wherein the armor layer is internally provided with 3 cable cores and 1 tensile rope, and the cable cores comprise a flame retardant layer, an insulating layer and a conductor from outside to inside; the bottom of the outer sheath is provided with an accommodating groove with an inverted U-shaped section and extending along the length direction of the cable, a plurality of deicing units are arranged in the accommodating groove in sequence along the length direction of the cable; the deicing unit comprises a fixed frame and a first movable frame, the first movable frame comprises a first movable block and a first cambered plate, the first movable block and the fixed frame are connected through a plurality of telescopic rods, a tension spring is sleeved outside each telescopic rod, and the first movable block is inserted into the accommodating groove; the cable also comprises a driving unit, and the driving unit comprises an air pump, a main pipe, an air chamber, a first branch pipe, an end fixing plate and a second branch pipe. The cable can be effectively used in alpine regions for a long time.

Description

Durable transmission special cable suitable for alpine regions

Technical Field

The invention relates to the field of cables, in particular to a durable transmission special cable suitable for alpine regions.

Background

The cable is a common signal and power transmission part in modern life, and common cables include a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like. . They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like. The structure of the ice cream stick is usually wrapped by a covering layer, an insulating layer, a flame-retardant layer and the like can be selected according to the use requirement, and in some severe cold areas, due to frequent snowing and continuous low temperature keeping, a drooping ice cream stick can be formed on a cable, if the temperature is continuously low, the ice cream sticks are possibly fixed on the cable for a long time, so that the weight of the cable is increased on the whole, and the cable is damaged for a long time.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to overcome the defects of the prior art and provides a durable transmission special cable suitable for alpine regions.

The technical scheme is as follows: a durable transmission cable suitable for alpine regions comprises an outer sheath and an armor layer from outside to inside, wherein 3 cable cores and 1 tensile rope are arranged in the armor layer, and each cable core comprises a flame retardant layer, an insulating layer and a conductor from outside to inside; the bottom of the outer sheath is provided with an accommodating groove with an inverted U-shaped section and extending along the length direction of the cable, a plurality of deicing units are arranged in the accommodating groove in sequence along the length direction of the cable; the deicing unit comprises a fixed frame which is fixed in the accommodating tank and has an inverted U-shaped cross section and a first movable frame which is positioned below the fixed frame and can move up and down, the first movable frame comprises a first movable block and a first cambered plate which is fixed at the bottom of the first movable block, the first movable block is connected with the fixed frame through a plurality of telescopic rods, each telescopic rod is externally sleeved with a tension spring, one end of each tension spring is fixed with the fixed frame, the other end of each tension spring is fixed with the first movable block, and the first movable block is inserted into the accommodating tank; the cable still includes drive unit, drive unit include the air pump, be connected with the air pump be responsible for, with be responsible for the air chamber and a plurality of connection of being connected in the first branch pipe of air chamber, drive unit still includes end fixing plate and a plurality of and end fixing plate fixed second branch pipe, and the one end that the second branch pipe is close to end fixing plate is sealed, and the quantity of first branch pipe equals the quantity and the one-to-one of second branch pipe, is connected with a first hose between every first branch pipe and a second branch pipe, first hose passes all mounts, and is located between mount and the first movable block.

Preferably, when all the first hoses are filled with air, the cross sections of all the first hoses are distributed in a rectangular array, and the outer side walls of two adjacent first hoses are fixedly bonded.

So that adjacent first flexible tubes are bonded together so that the plurality of first flexible tubes form an integral body.

Preferably, the tension spring is surrounded by a corrugated pipe; the fixing frame is bonded and fixed in the accommodating groove or fixed in the accommodating groove through a fixing screw.

Thereby on the one hand the extension spring is protected, on the one hand also the extension spring is avoided damaging the first hose.

Preferably, 4 telescopic links are connected between each first movable block and the fixed frame.

Preferably, the conductor is copper, the insulating layer is a polyethylene insulating layer, the flame retardant layer is a low-smoke halogen-free flame retardant layer, the armor layer is a woven armor layer, and the outer sheath is a PVC outer sheath or a nylon outer sheath.

Thereby providing adequate insulation, flame retardancy, and mechanical strength to the cable.

Preferably, the deicing unit further comprises a second movable frame, and the second movable frame comprises a second movable block and a second cambered plate fixed to the bottom end of the second movable block; the first movable block is provided with an accommodating channel which extends along the length direction of the cable and vertically penetrates through the first movable block, and the second movable block is inserted into the accommodating channel; the air chamber is further connected with a plurality of third branch pipes, a plurality of fourth branch pipes are further fixed at the end fixing plate, one ends of the fourth branch pipes, which are close to the end fixing plate, are closed, the number of the third branch pipes is equal to that of the fourth branch pipes, the third branch pipes correspond to that of the fourth branch pipes one by one, each third branch pipe and one fourth branch pipe are connected with a second hose, the second hoses penetrate through the accommodating channels of all the first movable blocks, when all the second hoses are full of air, the cross sections of all the second hoses are distributed in a rectangular array, and the outer side walls of two adjacent second hoses are fixedly bonded; the outer side wall of the second hose located at the bottommost end is fixedly bonded with the second movable block, and the outer side wall of the second hose located at the topmost end is fixedly bonded with the outer side wall of the first hose.

Preferably, when all the first hoses are filled with air, the cross sections of all the first hoses are distributed in a rectangular array, each row is provided with 4 first hoses, and the outer side wall of the topmost row of first hoses is fixedly bonded with the fixing frame; when all the second hoses are full, the cross sections of all the second hoses are distributed in a rectangular array, and each row has 2 second hoses.

Preferably, the bottom end of the outer sheath is further provided with a first arc-shaped groove which is communicated with the accommodating groove and extends along the length direction of the cable, and the first arc-shaped panel can be accommodated in the first arc-shaped groove; the bottom of first cambered plate has the second arc recess that extends along cable length direction with holding the passageway intercommunication, the second cambered plate can hold in second arc recess.

Thereby the outline of guaranteeing the cable on the whole is circular to make things convenient for the transportation of cable.

Preferably, the outer diameter corresponding to the outer arc surface of the first arc surface plate, the outer diameter corresponding to the outer arc surface of the second arc surface plate and the outer diameter of the outer sheath are equal.

Preferably, each first branch pipe and each third branch pipe are provided with an electric control valve, the air chamber is internally provided with a pressure sensor, the air pump is connected with a controller, and the controller is further connected with a wireless communication unit. Therefore, the air pump and the valve can be remotely controlled.

Has the advantages that: the cable can be used for power transmission, is particularly suitable for power transmission in alpine regions, and can actively remove drooping ice blocks after being frozen in snowy days, so that the cable is prevented from being damaged due to the fact that the ice blocks are hung for a long time. And the deicing process can be remotely and manually controlled or intelligently and automatically executed.

Drawings

FIG. 1 is a schematic cross-sectional view of a cable;

FIG. 2 is a perspective view of a section of cable showing a section of cable, the actual cable being longer;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a schematic view of the air chamber and end fixing plate in combination.

Detailed Description

Reference numerals: 1, tensile resistance rope; 2. a conductor; 3 an insulating layer; 4 a flame retardant layer; 5, an armor layer; 6 an outer sheath; 6.1 accommodating grooves; 7, fixing a frame; 7.1 telescopic rods; 7.2 a tension spring; 7.3 a first movable block; 7.4 first cambered plate; 8.1 a first hose; 8.2 a second hose; 9.1 a second movable block; 9.2 a second cambered plate; 11 a main pipe; 11.1 air chamber; 11.2 end fixing plates; 10.1 a first branch pipe; 10.2 a second branch pipe; 10.3 third branch pipe; 10.4 fourth branch.

A durable transmission special cable suitable for alpine regions comprises an outer sheath 6 and an armor layer 5 from outside to inside, wherein 3 cable cores and 1 tensile rope 1 are arranged in the armor layer 5, and each cable core comprises a flame retardant layer 4, an insulating layer 3 and a conductor 2 from outside to inside; the bottom of the outer sheath 1 is provided with an accommodating groove 6.1 which is inverted U-shaped in cross section and extends along the length direction of the cable, a plurality of deicing units are arranged in the accommodating groove 6.1, and the deicing units are sequentially arranged along the length direction of the cable; the deicing unit comprises a fixed frame 7 which is fixed in the accommodating groove and has an inverted U-shaped cross section and a first movable frame which is positioned below the fixed frame 7 and can move up and down, the first movable frame comprises a first movable block 7.3 and a first cambered plate 7.4 which is fixed at the bottom of the first movable block 7.3, the first movable block 7.3 is connected with the fixed frame 7.4 through a plurality of telescopic rods 7.1, a tension spring 7.2 is sleeved outside each telescopic rod 7.1, one end of each tension spring 7.2 is fixed with the fixed frame 7, the other end of each tension spring is fixed with the first movable block 7.3, and the first movable block 7.3 is inserted into the accommodating groove; the cable still includes drive unit, drive unit includes the air pump, is connected with the air pump be responsible for 11, with be responsible for 11 air chambers 11.1 and a plurality of connection in air chamber 11.1's first branch pipe 10.1, drive unit still includes end fixing plate 11.2 and a plurality of second branch pipe 10.2 fixed with end fixing plate 11.2, and second branch pipe 10.2 is close to end fixing plate 11.2's one end and seals, and first branch pipe 10.1's quantity equals the quantity and the one-to-one of second branch pipe 10.2, is connected with a first hose 8.1 between every first branch pipe 10.1 and a second branch pipe 10.2, first hose 8.1 passes all mounts 7, and is located between mount 7 and the first movable block 7.3.

When all the first hoses 8.1 are filled with air, the cross sections of all the first hoses 8.1 are distributed in a rectangular array, and the outer side walls of two adjacent first hoses 8.1 are fixedly bonded. The corrugated pipe is surrounded outside the tension spring 7.2; the fixing frame 7 is bonded and fixed in the accommodating groove 6.1 or fixed in the accommodating groove through a fixing screw. And 4 telescopic rods 7.1 are connected between each first movable block 7.3 and the fixed frame 7. The conductor 2 is copper, the insulating layer 3 is a polyethylene insulating layer, the flame-retardant layer 4 is a low-smoke halogen-free flame-retardant layer, the armor layer 5 is a woven armor layer, and the outer sheath 6 is a PVC outer sheath or a nylon outer sheath.

In order to further increase the deicing effect, in particular the effect of removing some smaller drooping ice batons, the following features are also added: the deicing unit further comprises a second movable frame, and the second movable frame comprises a second movable block 9.1 and a second cambered plate 9.2 fixed to the bottom end of the second movable block 9.1; the first movable block 7.3 is provided with an accommodating channel which extends along the length direction of the cable and vertically penetrates through the first movable block, and the second movable block 9.1 is inserted into the accommodating channel; the air chamber 11.1 is further connected with a plurality of third branch pipes 10.3, a plurality of fourth branch pipes 10.4 are further fixed at the position of the end fixing plate 11.2, one end, close to the end fixing plate 11.2, of each fourth branch pipe 10.4 is closed, the number of the third branch pipes 10.3 is equal to that of the fourth branch pipes 10.4, the third branch pipes and the fourth branch pipes correspond to each other one by one, each third branch pipe 10.3 and one fourth branch pipe 10.4 are connected with a second hose, the second hoses penetrate through the accommodating channels of all the first movable blocks 7.3, when all the second hoses 8.2 are fully filled with air, the cross sections of all the second hoses 8.2 are distributed in a rectangular array, and the outer side walls of two adjacent second hoses 8.2 are fixedly bonded; the outer side wall of the second hose 8.2 located at the bottommost end is fixedly bonded with the second movable block 9.1, and the outer side wall of the second hose 8.2 located at the topmost end is fixedly bonded with the outer side wall of the first hose 8.1. When all the first hoses 8.1 are filled with air, the cross sections of all the first hoses 8.1 are distributed in a rectangular array, each row is provided with 4 first hoses 8.1, and the outer side wall of the topmost row of first hoses 8.1 is fixedly bonded with the fixed frame 7; when all the second hoses 8.2 are filled with air, all the second hoses 8.2 are distributed in a rectangular array in cross section, and each row has 2 second hoses 8.2. Preferably, in order to increase the restoring effect of the second movable block, a plurality of elastic restoring strings may be further connected between the top end of the second movable block and the top end of the first movable block. Preferably, two rows of elastic return cords are arranged to surround the plurality of second hoses. The bottom end of the outer sheath 6 is also provided with a first arc-shaped groove which is communicated with the accommodating groove and extends along the length direction of the cable, and the first arc-shaped panel can be accommodated in the first arc-shaped groove; the bottom end of the first cambered plate 7.4 is provided with a second cambered groove which is communicated with the accommodating channel and extends along the length direction of the cable, and the second cambered plate 9.2 can be accommodated in the second cambered groove. The outer diameter corresponding to the outer arc surface of the first arc surface plate 7.4, the outer diameter corresponding to the outer arc surface of the second arc surface plate 9.2 and the outer diameter of the outer sheath are equal. Each first branch pipe and each third branch pipe are respectively provided with an electric control valve, a pressure sensor is arranged in the air chamber, the air pump is connected with a controller, and the controller is further connected with a wireless communication unit.

In the cable manufacturing process, when the outer sheath is extruded, an extruding machine capable of generating the accommodating groove is selected for extrusion, then all the deicing units, the first hose and the second hose are manufactured, all the deicing units are fixed in the accommodating groove, and the first hose and the second hose penetrate through all the deicing units to be fixed after being coated with glue (specifically, a plurality of first hoses and a plurality of second hoses can be manufactured into a whole and then are penetrated). During installation, the air chamber and the end fixing plate are respectively installed on two cable brackets, such as two adjacent cable brackets, one is provided with the air chamber, and the other is provided with the end fixing plate. In addition, due to the fact that the structure in the accommodating groove is numerous, the weight of the accommodating groove is heavier than that of the outer sheath in other directions, and the accommodating groove is located at the lowest position of the cable after installation. During the use, under the normal condition, the air pump is bled and is guaranteed that all there is not gas in first, the two hoses to first, two hoses are guaranteed to be in shrivelled state, and the extension spring makes the telescopic link be in the shortest state, and the second arc also laminates in second arc recess, as shown in figure 2.

After the ice sucker is produced on the cable, the air pump can be utilized for inflating, so that the first hose and the second hose are filled with air, at the moment, the first arc-shaped plate protrudes downwards to the lowest point (the first movable plate limits the moving direction by the telescopic rod), the second arc-shaped plate also protrudes downwards to the lowest point relative to the first arc-shaped plate (the second movable block is still inserted into the accommodating channel at the lowest point and is limited by the accommodating channel), and therefore ice blocks are forcedly stripped from the cable, and the ice sucker is removed. The second arc-shaped plate is arranged, because some small ice blocks are not fixed with the outer sheath and are completely fixed with the first arc-shaped plate, the ice sucker can be peeled off only by the relative movement of the second arc-shaped plate and the first arc-shaped plate.

The reason why a plurality of first hoses and a plurality of second hoses are arranged instead of a first integral air bag and a second integral air bag is that the maintenance in a severe cold area is inconvenient, if the air bags are damaged once, the deicing units can be disabled, the first hoses and the second hoses are bonded together, and the deicing function is not influenced even if some hoses are damaged. In addition, preferably, in order to prevent the plurality of first hoses from deforming, limiting expansion plates (namely, a sleeve plate connected with the fixed frame and a movable plate connected with the first movable block) can be arranged on two sides of the whole formed by the plurality of first hoses, so that the two limiting expansion plates limit the plurality of first hoses between the two first expansion plates, and collapse and deformation are avoided.

In addition, the pressure sensor is arranged in the air chamber, so that whether the hose is damaged or not can be regularly detected, and the detection method comprises the following steps: and opening the valve of only one hose, closing the valves of the other hoses, slowly pressurizing by the air pump, and if the pressure can reach a set threshold, indicating that the hose is not damaged, otherwise, indicating that the hose is damaged. The valve of the hose is closed all the time for the damaged hose, so that the deicing operation is prevented from being influenced. The deicing operation can be executed by remote manual control, and can also be executed by networking weather information and automatically controlling after raining or snowing each time.

While the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.

Claims

1. A durable transmission special cable suitable for alpine regions is characterized by comprising an outer sheath and an armor layer from outside to inside, wherein 3 cable cores and 1 tensile rope are arranged in the armor layer, and each cable core comprises a flame retardant layer, an insulating layer and a conductor from outside to inside; the bottom of the outer sheath is provided with an accommodating groove with an inverted U-shaped section and extending along the length direction of the cable, a plurality of deicing units are arranged in the accommodating groove in sequence along the length direction of the cable; the deicing unit comprises a fixed frame which is fixed in the accommodating tank and has an inverted U-shaped cross section and a first movable frame which is positioned below the fixed frame and can move up and down, the first movable frame comprises a first movable block and a first cambered plate which is fixed at the bottom of the first movable block, the first movable block is connected with the fixed frame through a plurality of telescopic rods, each telescopic rod is externally sleeved with a tension spring, one end of each tension spring is fixed with the fixed frame, the other end of each tension spring is fixed with the first movable block, and the first movable block is inserted into the accommodating tank; the cable still includes drive unit, drive unit include the air pump, be connected with the air pump be responsible for, with be responsible for the air chamber and a plurality of connection of being connected in the first branch pipe of air chamber, drive unit still includes end fixing plate and a plurality of second branch pipe fixed with end fixing plate, and the one end that the second branch pipe is close to end fixing plate is sealed, and the quantity of first branch pipe equals the quantity and the one-to-one of second branch pipe, is connected with a first hose between every first branch pipe and its corresponding second branch pipe, first hose passes all mounts, and is located between mount and the first movable block.

2. The special durable transmission cable suitable for alpine regions according to claim 1, wherein when all the first hoses are filled with air, the cross sections of all the first hoses are distributed in a rectangular array, and the outer side walls of two adjacent first hoses are fixedly bonded.

3. The special durable transmission cable suitable for alpine regions according to claim 1, wherein a corrugated pipe is surrounded outside the tension spring; the fixing frame is bonded and fixed in the accommodating groove or fixed in the accommodating groove through a fixing screw.

4. The special durable transmission cable suitable for the alpine region as claimed in claim 1, wherein 4 telescopic rods are connected between each first movable block and the fixed frame.

5. The special durable transmission cable suitable for the alpine region according to claim 1, wherein the conductor is copper, the insulating layer is a polyethylene insulating layer, the flame-retardant layer is a low-smoke halogen-free flame-retardant layer, the armor layer is a woven armor layer, and the outer sheath is a PVC outer sheath or a nylon outer sheath.

6. The special cable for durable transmission suitable for the alpine region according to claim 2, wherein the deicing unit further comprises a second movable frame, and the second movable frame comprises a second movable block and a second arc panel fixed to the bottom end of the second movable block; the first movable block is provided with an accommodating channel which extends along the length direction of the cable and vertically penetrates through the first movable block, and the second movable block is inserted into the accommodating channel; the air chamber is further connected with a plurality of third branch pipes, a plurality of fourth branch pipes are further fixed at the end fixing plate, one ends of the fourth branch pipes, which are close to the end fixing plate, are closed, the number of the third branch pipes and the number of the fourth branch pipes are equal and correspond to each other one by one, each third branch pipe and the corresponding fourth branch pipe are connected with a second hose, the second hoses penetrate through the accommodating channels of all the first movable blocks, when all the second hoses are full of air, the cross sections of all the second hoses are distributed in a rectangular array, and the outer side walls of two adjacent second hoses are fixedly bonded; the outer side wall of the second hose located at the bottommost end is fixedly bonded with the second movable block, and the outer side wall of the second hose located at the topmost end is fixedly bonded with the outer side wall of the first hose.

7. The special durable transmission cable suitable for the alpine region according to claim 6, wherein when all the first hoses are filled with air, the cross sections of all the first hoses are distributed in a rectangular array, each row is provided with 4 first hoses, and the outer side walls of the topmost row of first hoses are fixedly bonded with the fixing frame; when all the second hoses are full, the cross sections of all the second hoses are distributed in a rectangular array, and each row has 2 second hoses.

8. The special cable for durable transmission suitable for alpine regions according to claim 6, wherein the bottom end of the outer sheath further has a first arc-shaped groove which is communicated with the accommodating groove and extends along the length direction of the cable, and the first arc-shaped plate can be accommodated in the first arc-shaped groove; the bottom of first cambered plate has the second arc recess that extends along cable length direction with holding the passageway intercommunication, the second cambered plate can hold in second arc recess.

9. The special durable transmission cable suitable for alpine regions according to claim 6, wherein an outer diameter corresponding to the outer arc surface of the first arc-shaped plate, an outer diameter corresponding to the outer arc surface of the second arc-shaped plate, and an outer diameter of the outer sheath are equal to each other.

10. The special durable transmission cable suitable for the alpine region as claimed in claim 6, wherein each of the first branch pipes and the third branch pipes is provided with an electrically controlled valve, the air chamber is provided with a pressure sensor, the air pump is connected with a controller, and the controller is further connected with a wireless communication unit.