A control cable that can be temporarily switched in case of failure

Abstract

The present invention discloses a control cable that can be temporarily switched in case of a fault, comprising a first cable and a second cable, wherein the first cable is arranged at the lower part of the second cable, and the first cable and the second cable are arranged side by side, one end of the first cable and the second cable are both provided with a first clamp, and the other end of the first cable and the second cable are both provided with a second clamp, and the first clamp and the second clamp both comprise a docking disk and a rotating disk, wherein the rotating disk is movably mounted on the outer surface of one end of the docking disk, a conductive terminal is fixedly mounted on the inner side of the docking disk, and two groups of wiring terminals are fixedly mounted on the inner side of the rotating disk; a user rotates the rotating disk so that the rotating disk adjusts the use position of the first cable and the second cable, and rotates the rotating disk to replace the docking between the two groups of wiring terminals and the conductive terminals, and when the wiring terminals and the conductive terminals are docked, the first cable or the second cable is energized for use, thereby quickly switching the first cable and the second cable.

Description

Technical Field

[0001] The invention belongs to the technical field related to cables, and more specifically to a control cable which can be temporarily switched in case of failure. Background Art

[0002] Control cable is a PVC insulated and PVC sheathed control cable suitable for use in industrial and mining enterprises, energy and transportation departments, protection lines and other occasions. Control cable has the characteristics of moisture resistance, corrosion resistance and damage resistance, and can be laid in tunnels or cable trenches. Power cables are used to transmit and distribute high-power electrical energy in the main lines of power systems. Control cables transmit electrical energy directly from the distribution points of the power system to the power connection lines of various electrical equipment and appliances.

[0003] Patent document No. CN107146656A discloses a control cable, including at least one cable core, the cable core is wrapped with glass fiber tape, copper wire braided layer, and extruded outer sheath in sequence, the cable core includes a central fine steel wire layer, a plurality of copper conductor layers are twisted outside the central fine steel wire layer, a fireproof layer is wrapped in sequence outside the copper conductor layer, and an extruded insulation layer is extruded. The central fine steel wire layer of the cable is twisted by a plurality of steel wires with a diameter of 0.15 mm, and the twisting pitch of the central steel wire layer is not greater than 8-12 times the twisting outer diameter. It has good fireproof performance, high mechanical strength, good bending performance, high safety factor of cable use, and ensures that the operator can safely perform various operations such as manual excavation. The cable can be applied to a wide range of occasions.

[0004] The above-mentioned control cable has certain shortcomings when in use. The above-mentioned control cable does not have a quick switching structure. The control cable is used to transmit and distribute high-power electrical energy in the main line of the power system and has important functions. When the control cable is broken, maintenance personnel need to spend a lot of time to perform wiring operations on the branching ends of the control cable, which increases the maintenance cost of the control cable; secondly, the traditional control cable does not have an auxiliary fixing structure, which makes it easy for multiple control cables to be entangled, and multiple cables are close to each other and are easily damaged at the same time, which brings certain adverse effects to users. Summary of the invention

[0005] The purpose of the present invention is to provide a control cable which can be temporarily switched in case of a fault, so as to solve the existing problems.

[0006] The problem to be solved by the present invention is:

[0007] 1. The control cable does not have a fast switching structure. The control cable is used to transmit and distribute high-power electric energy in the main line of the power system and has an important function. When the control cable is broken, the maintenance personnel need to spend a lot of time to connect the branching head of the control cable, which increases the maintenance cost of the control cable;

[0008] 2. Traditional control cables do not have an auxiliary fixing structure, which makes it easy for multiple control cables to get entangled. Multiple cables are close to each other and are easily damaged at the same time.

[0009] The purpose of the present invention can be achieved through the following technical solutions:

[0010] A control cable that can be temporarily switched in the event of a fault, comprises a first cable and a second cable, wherein the first cable is arranged at the bottom of the second cable, and the first cable and the second cable are arranged side by side, one end of the first cable and the second cable are each provided with a first clamp, and the other end of the first cable and the second cable are each provided with a second clamp, the first clamp and the second clamp each comprise a docking disk and a rotating disk, the rotating disk is movably mounted on the outer surface of one end of the docking disk, a conductive terminal is fixedly mounted on the inner side of the docking disk, two groups of wiring terminals are fixedly mounted on the inner side of the rotating disk, and a fixed clamp is fixedly mounted at the middle position of the outer surface of the first cable and the second cable.

[0011] As a further technical solution of the present invention, two groups of circular grooves are formed through the outer surface of the fixed chuck, and a damping sleeve is fixedly installed on the inner side of the circular groove. The fixed chuck is sleeved at the middle position between the first cable and the second cable, which can separate and fix the first cable and the second cable, avoid entanglement between the first cable and the second cable, and keep a certain distance between the first cable and the second cable, thereby preventing the first cable and the second cable from being damaged at the same time.

[0012] As a further technical solution of the present invention, a rotating clamp is fixedly installed on the outer surface of one end of the rotating disk, and an annular groove for cooperating with the rotating clamp is provided on the inner side of one end of the docking disk. The docking between the rotating clamp and the annular groove makes the rotating disk and the docking disk active, and the user can replace the first cable and the second cable by rotating the rotating disk.

[0013] As a further technical solution of the present invention, the first cable and a group of wiring terminals and the second cable and another group of wiring terminals are electrically connected. A power connection is fixedly installed in the middle of one end of the docking disk. The power connection and the conductive terminal are electrically connected. When the user rotates the rotating disk, the rotating disk adjusts the use position of the first cable and the second cable. The first cable and the second cable correspond to different wiring terminals respectively. The rotating disk is rotated to replace the docking between the two groups of wiring terminals and the conductive terminals. When the wiring terminals and the conductive terminals are docked, the first cable or the second cable is powered on and used, thereby quickly switching the first cable and the second cable.

[0014] As a further technical solution of the present invention, a limiting push buckle is movably installed on the outer surface of the side of the docking plate, and a card slot for docking with the limiting push buckle is provided on the outer surface of the side of the rotating plate. The docking and fixation between the card slot and the limiting push buckle can fix the rotating plate after rotation.

[0015] As a further technical solution of the present invention, the sides of the conductive terminal and the wiring terminal are both sleeved with magnetic rings, and the inner sides of the conductive terminal and the wiring terminal are both provided with conductors. The setting of the magnetic rings can provide magnetic reinforcement for the conductive terminal and the wiring terminal after docking.

[0016] As a further technical solution of the present invention, the first cable and the second cable both include a metal conductor and an insulating sheath, the outer surface of the metal conductor is sleeved with a fire-resistant layer, the insulating sheath is wrapped around the outer surface of the fire-resistant layer, a filling layer is provided on the side of the insulating sheath, the outer surface of the filling layer is wrapped with an armored sheath, and the outer surface of the armored sheath is sleeved with a cable sheath.

[0017] Beneficial effects of the present invention:

[0018] 1. By setting a first clamp and a second clamp, when the control cable is used, the first clamp and the second clamp are respectively fixed to the two ends of the first cable and the second cable, and the first clamp and the second clamp have a rotary quick switching structure by using the setting of the rotating disk. When the user rotates the rotating disk, the rotating disk adjusts the use position of the first cable and the second cable. The first cable and the second cable correspond to different wiring terminals respectively. The rotating disk is rotated to replace the connection between the two groups of wiring terminals and the conductive terminals. When the wiring terminals and the conductive terminals are connected, the first cable or the second cable is powered on for use, thereby quickly switching the first cable and the second cable, by utilizing the docking between the rotating clamp ring and the annular clamping groove, the rotating disk and the docking disk are in an active state, so that the user can replace the use of the first cable and the second cable by rotating the rotating disk, and secondly, by utilizing the docking fixation between the clamping groove and the limit push buckle, the rotating disk can be fixed after rotation, thereby preventing the first cable and the second cable from loosening after rotation switching, thereby improving the safety of the switching operation of the control cable, and utilizing the setting of the first clamp and the second clamp to enable the control cable to have a quick switching structure, thereby promptly responding to cable failure problems and shortening the time required for its maintenance.

[0019] 2. By setting a fixed chuck, when the control cable that can be temporarily switched in case of a fault is used, the fixed chuck is sleeved on the middle position between the first cable and the second cable, which can separate and fix the first cable and the second cable, avoid entanglement between the first cable and the second cable, and keep a certain distance between the first cable and the second cable, thereby preventing the first cable and the second cable from being damaged at the same time. Secondly, by using a damping sleeve, the friction between the first cable, the second cable and the fixed chuck can be increased, avoiding the loosening of the fixed chuck after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of a control cable that can be temporarily switched in case of a fault according to the present invention;

[0022] Figure 2 It is a cross-sectional view of a control cable that can be temporarily switched in case of a fault according to the present invention;

[0023] Figure 3 This is an overall structural diagram of a first card in a control cable that can be temporarily switched in case of a fault according to the present invention;

[0024] Figure 4 It is an overall structural diagram of a fixed chuck in a control cable that can be temporarily switched in case of failure according to the present invention.

[0025] In the figure: 1. first clamp; 2. first cable; 3. second cable; 4. second clamp; 5. power connection; 6. fixed clamp; 7. metal wire; 8. fire-resistant layer; 9. insulating sheath; 10. armored sheath; 11. filling layer; 12. limit push buckle; 13. rotating clamp ring; 14. docking plate; 15. rotating plate; 16. wiring terminal; 17. damping sleeve; 18. round groove slot; 19. conductive terminal. DETAILED DESCRIPTION

[0026] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0027] like Figure 1-4As shown, a control cable that can be temporarily switched in the event of a fault includes a first cable 2 and a second cable 3. The first cable 2 and the second cable 3 can be replaced at will. When the first cable 2 or the second cable 3 is broken, the position of the first cable 2 or the second cable 3 can be adjusted so that the cable can be used normally. The first cable 2 is arranged at the lower part of the second cable 3, and the first cable 2 and the second cable 3 are arranged side by side. One end of the first cable 2 and the second cable 3 is provided with a first clamp 1, and the other end of the first cable 2 and the second cable 3 is provided with a second clamp 4. The arrangement of the first clamp 1 and the second clamp 4 plays an auxiliary fixing role for the two ends of the first cable 2 and the second cable 3. The first clamp 1 and the second clamp 4 both include a docking disk 14 and a rotating disk 15. The rotating disk 15 is movably installed on the outer surface of one end of the docking disk 14. A conductive terminal 19 is fixedly installed on the inner side of the docking disk 14. Two groups of wiring terminals 16 are fixedly installed on the inner side of the rotating disk 15. Fixed clamps 6 are fixedly installed at the middle position of the outer surfaces of the first cable 2 and the second cable 3.

[0028] Two groups of circular grooves 18 are formed through the outer surface of the fixing chuck 6, and a damping sleeve 17 is fixedly installed on the inner side of the circular groove 18. The fixing chuck 6 is sleeved at the middle position between the first cable 2 and the second cable 3, which can separate and fix the first cable 2 and the second cable 3, avoid entanglement between the first cable 2 and the second cable 3, keep a certain distance between the first cable 2 and the second cable 3, and prevent the first cable 2 and the second cable 3 from being damaged at the same time.

[0029] A rotating snap ring 13 is fixedly installed on the outer surface of one end of the rotating disk 15, and an annular groove for cooperating with the rotating snap ring 13 is provided on the inner side of one end of the docking disk 14. The docking between the rotating snap ring 13 and the annular groove makes the rotating disk 15 and the docking disk 14 active. The user can replace the first cable 2 and the second cable 3 by rotating the rotating disk 15.

[0030] The first cable 2 and a group of wiring terminals 16 as well as the second cable 3 and another group of wiring terminals 16 are electrically connected. A power connection 5 is fixedly installed in the middle of one end of the docking disk 14. The power connection 5 is arranged so that the first cable 2 or the second cable 3 can be connected to an external circuit to play a role in wire docking. The power connection 5 and the conductive terminal 19 are electrically connected. When the user rotates the rotating disk 15, the rotating disk 15 adjusts the use position of the first cable 2 and the second cable 3. The first cable 2 and the second cable 3 correspond to different wiring terminals 16 respectively. The rotating disk 15 is rotated to replace the docking between the two groups of wiring terminals 16 and the conductive terminal 19. When the wiring terminal 16 and the conductive terminal 19 are docked, the first cable 2 or the second cable 3 is powered on for use, thereby quickly switching the first cable 2 and the second cable 3.

[0031] A limit push buckle 12 is movably installed on the side outer surface of the docking disk 14, and a card slot for docking the limit push buckle 12 is provided on the side outer surface of the rotating disk 15. The docking and fixation between the card slot and the limit push buckle 12 can fix the rotating disk 15 after rotation, thereby preventing the first cable 2 or the second cable 3 from loosening after docking.

[0032] The sides of the conductive terminal 19 and the wiring terminal 16 are both sleeved with magnetic rings, and the inner sides of the conductive terminal 19 and the wiring terminal 16 are both provided with conductors. The magnetic rings can be used to provide magnetic reinforcement to the conductive terminal 19 and the wiring terminal 16 after docking.

[0033] The first cable 2 and the second cable 3 both include a metal conductor 7 and an insulating sheath 9. The outer surface of the metal conductor 7 is sleeved with a fire-resistant layer 8. The insulating sheath 9 is wrapped around the outer surface of the fire-resistant layer 8. A filling layer 11 is provided on the side of the insulating sheath 9. The outer surface of the filling layer 11 is wrapped with an armored sheath 10. The outer surface of the armored sheath 10 is sleeved with a cable sheath.

[0034] The control cable which can be temporarily switched in case of failure is provided with a first clamp 1 and a second clamp 4. When the control cable is used, the first clamp 1 and the second clamp 4 are respectively fixed to the two ends of the first cable 2 and the second cable 3. The setting of the rotating disk 15 makes the first clamp 1 and the second clamp 4 have a rotating quick switching structure. When the user rotates the rotating disk 15, the rotating disk 15 adjusts the use position of the first cable 2 and the second cable 3. The first cable 2 and the second cable 3 correspond to different wiring terminals 16 respectively. The rotating disk 15 is rotated to replace the connection between the two groups of wiring terminals 16 and the conductive terminals 19. When the wiring terminals 16 and the conductive terminals 19 are connected, the first cable 2 or the second cable 3 is connected. The first cable 2 and the second cable 3 are quickly switched by using electricity. The docking between the rotating clamp ring 13 and the annular clamping groove makes the rotating disk 15 and the docking disk 14 active, so that the user can replace the use of the first cable 2 and the second cable 3 by rotating the rotating disk 15. Secondly, the docking fixation between the clamping groove and the limit push buckle 12 can fix the rotating disk 15 after rotation, so as to avoid the first cable 2 and the second cable 3 from loosening after rotation switching, thereby improving the safety of the control cable switching operation. The arrangement of the first clamp 1 and the second clamp 4 makes the control cable have a fast switching structure, so as to deal with the cable failure problem in time and shorten the time required for its maintenance.

[0035] By setting a fixed chuck 6, when the control cable that can be temporarily switched in case of a fault is used, the fixed chuck 6 is sleeved on the middle position between the first cable 2 and the second cable 3, which can separate and fix the first cable 2 and the second cable 3, avoid entanglement between the first cable 2 and the second cable 3, and keep a certain distance between the first cable 2 and the second cable 3, so as to prevent the first cable 2 and the second cable 3 from being damaged at the same time. Secondly, by using the damping sleeve 17, the friction between the first cable 2, the second cable 3 and the fixed chuck 6 can be increased, so as to avoid the fixed chuck 6 from loosening after installation.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A control cable that can be temporarily switched in case of a fault, characterized in that: The invention comprises a first cable (2) and a second cable (3), wherein the first cable (2) is arranged at the lower part of the second cable (3), and the first cable (2) and the second cable (3) are arranged side by side, one end of each of the first cable (2) and the second cable (3) is provided with a first clamp (1), and the other end of each of the first cable (2) and the second cable (3) is provided with a second clamp (4), the first clamp (1) and the second clamp (4) both comprise a docking plate (14) and a rotating plate (15), the rotating plate (15) being movably mounted on the outer surface of one end of the docking plate (14), a conductive terminal (19) being fixedly mounted on the inner side of the docking plate (14), two groups of wiring terminals (16) being fixedly mounted on the inner side of the rotating plate (15), and a fixed clamp (6) being fixedly mounted on the middle position of the outer surface of each of the first cable (2) and the second cable (3); The first cable (2) and a group of wiring terminals (16) as well as the second cable (3) and another group of wiring terminals (16) are all electrically connected; a power connection (5) is fixedly mounted in the middle of one end of the docking disk (14); the power connection (5) and the conductive terminal (19) are electrically connected; and the use of the first cable (2) and the second cable (3) can be replaced by rotating the rotating disk (15).

2. A control cable that can be temporarily switched in case of a fault according to claim 1, characterized in that: Two groups of circular grooves (18) are formed through the outer surface of the fixed chuck (6), and a damping sleeve (17) is fixedly mounted on the inner side of the circular groove (18).

3. A control cable that can be temporarily switched in case of failure according to claim 2, characterized in that: A rotating snap ring (13) is fixedly mounted on the outer surface of one end of the rotating disk (15), and an annular groove for matching with the rotating snap ring (13) is provided on the inner side of one end of the docking disk (14).

4. A control cable that can be temporarily switched in case of failure according to claim 1, characterized in that: A limit push buckle (12) is movably mounted on the outer side surface of the docking plate (14), and a slot for docking the limit push buckle (12) is provided on the outer side surface of the rotating plate (15).

5. A control cable that can be temporarily switched in case of failure according to claim 1, characterized in that: The sides of the conductive terminal (19) and the wiring terminal (16) are both sleeved with magnetic rings, and the inner sides of the conductive terminal (19) and the wiring terminal (16) are both provided with conductors.

6. A control cable that can be temporarily switched in case of failure according to claim 1, characterized in that: The first cable (2) and the second cable (3) both comprise a metal conductor (7) and an insulating sheath (9); the outer surface of the metal conductor (7) is sheathed with a fire-resistant layer (8); the insulating sheath (9) is wrapped around the outer surface of the fire-resistant layer (8); a filling layer (11) is provided on the side of the insulating sheath (9); the outer surface of the filling layer (11) is wrapped with an armored sheath (10); and the outer surface of the armored sheath (10) is sheathed with a cable sheath.

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