Module assembly type lead protection device for electrical cable

Abstract

The invention discloses a module assembly type lead wire protection device for an electrical cable, and belongs to the technical field of cable protection, the module assembly type lead wire protection device comprises a wire correction sleeve and a plurality of torsion release wire protection sleeves, the end part of the wire correction sleeve is connected with a bending measurement retention ring, the bending measurement retention ring is internally provided with a bending measurement assembly used for detecting the bending direction of a winding cable, the wire correction sleeve is internally provided with a direction adjusting ring, and the direction adjusting ring is connected with the torsion release wire protection sleeves. And the inner side wall of the direction adjusting ring is connected with two symmetrically arranged wire holding arc plates. Through the arrangement of the jolting and swinging assembly, intermittent swinging of the electromagnetic base and the jolting and swinging magnetic base can be utilized to be matched with the buffer pad, so that the cable vibrates slightly to release internal stress, and bending and torsion superposition of the cable are avoided; layered release of torsion force can be realized by using the revolution release disc and the rotation release ring in the torsion release wire protection sleeve, damage to an insulating layer caused by local stress concentration is avoided, an apportionment release mechanism is adopted in the torsion transmission process, and finally residual torsion force is completely eliminated at the tail end of the cable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable protection, and particularly relates to a module assembled lead wire protection device for electrical cable. BACKGROUND

[0002] The electrical cable is a kind of power or signal transmission device, which is a wire system for transmitting power or signal from one point to another point.

[0003] The cable is usually wound after production for convenient storage and transportation. When the cable is laid by the construction personnel, the wound cable is gradually unwound. However, the cable has a certain bending stress due to the long-time winding state. After the unwound cable is directly laid in the trench, the cable gradually releases the stress and rubs against the internal backfilling coarse sand of the subsequent trench, which causes damage to the insulating protective layer of the cable. Meanwhile, when the cable encounters a place needing to be laid in a curved shape during the laying process, the construction personnel usually adapt the curved surface of the wound cable to the curved trench. In this process, the surface of the cable is easily twisted, so that the cable has bending stress and torsional stress at the same time. The stress superposition accelerates material fatigue, affects the normal use of the cable, and causes damage to the cable during the torsional release process. Therefore, the module assembled lead wire protection device for electrical cable is proposed. SUMMARY

[0004] The present application relates to the technical field of cable protection, and particularly relates to a module assembled lead wire protection device for electrical cable.

[0005] In order to achieve the above-mentioned purpose, the technical scheme is as follows: The module assembled lead wire protection device for electrical cable comprises a wire rectifying sleeve and a plurality of torsion release wire protection sleeves. The wire rectifying sleeve is provided with a bending measurement and fixing ring at the end. The bending measurement and fixing ring is provided with a bending measurement assembly for measuring the bending direction of the wound cable. The wire rectifying sleeve is provided with a direction adjusting ring. The inner wall of the direction adjusting ring is connected with two symmetrical wire holding arc plates. The wire holding arc plate is provided with a pendulum assembly for releasing the bending stress of the cable. The plurality of torsion release wire protection sleeves are connected through a plurality of curved corrugated sleeves. The inner wall of the torsion release wire protection sleeve is connected with two symmetrical limiting arc-shaped sliding grooves. The limiting arc-shaped sliding grooves are connected with a release assembly for gradually releasing the superimposed torsion of the cable. The torsion release wire protection sleeve at the end is connected with a mud guard. The mud guard is provided with a traction assembly.

[0006] Preferably, the wire rectifying sleeve is fixedly connected with the torsion release wire protection sleeve through an adapter frame. The torsion release wire protection sleeve and the curved corrugated sleeve are detachably assembled.

[0007] Preferably, the bending measurement assembly comprises a plurality of monitoring telescopic rods fixed to the inner wall of the bending measurement retainer ring, the piston rod end of the monitoring telescopic rod is fixedly connected with an arc-shaped touch plate, and a pressure sensor is arranged in the monitoring telescopic rod.

[0008] Preferably, a turning groove is formed in the inner side wall of the wire rectifying sleeve, the turning groove is rotationally connected with a direction adjusting ring, and the direction adjusting ring is fixedly connected with the wire holding arc plate through a hydraulic push rod.

[0009] Preferably, the pendulum assembly comprises an electromagnetic seat fixed to the inner end face of the adapter frame, the electromagnetic seat is connected with a pendulum magnetic seat through two reset spring rods, and the electromagnetic seat and the pendulum magnetic seat are both fixedly connected with a buffer pad.

[0010] Preferably, the release assembly comprises a revolution release disc slidingly arranged in the inner wall of a limiting arc-shaped sliding groove, and two limiting arc-shaped sliding grooves are fixedly connected with the left and right inner walls of the release and twist wire protection sleeve.

[0011] Preferably, a friction groove is formed in the revolution release disc, a revolution release ring is rotationally connected with the inner side wall of the friction groove, and a plurality of friction rubber buttons are fixedly connected with the inner side wall of the revolution release ring.

[0012] Preferably, the traction assembly comprises a U-shaped pull rod fixed to a mud guard, and the mud guard is fixedly connected with a sand breaking cone.

[0013] Compared with the prior art, the application has the following beneficial effects: 1. Through the arrangement of the wire holding arc plate, the bending direction of the cable can be sensed in real time by the arc-shaped touch plate and the monitoring telescopic rod, the hydraulic push rod and the direction adjusting ring are connected, the bending surface of the cable is automatically adjusted to an upward state, and the groove friction is reduced.

[0014] 2. Through the arrangement of the pendulum assembly, the intermittent swing of the electromagnetic seat and the pendulum magnetic seat is matched with the buffer pad, the cable is vibrated slightly to release the internal stress, and the superposition of bending and twisting of the cable is avoided.

[0015] 3. Through the arrangement of the release assembly, the layered release of the torsional force is realized by the revolution release disc and the revolution release ring in the release and twist wire protection sleeve, the local stress concentration is avoided to cause damage to the insulation layer, the mechanism of sharing release is adopted in the process of torsional transmission, and finally the residual torsional force is completely eliminated at the end of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective structural schematic view of a modular lead wire protection device for electrical cables proposed in the application; Figure 2 It is an assembly drawing of a modular lead wire protection device for electrical cables proposed in the application; Figure 3 Fig. 1 is a perspective view of a module assembly type lead wire protection device for electrical cables according to the present application; Figure 2 Fig. 2 is an enlarged view of the position of the wire holding arc plate at A in Fig. 1; Figure 4 Fig. 3 is a structural schematic view of the position of the revolution release disc in a module assembly type lead wire protection device for electrical cables according to the present application; Figure 5 Fig. 4 is a structural schematic view of the release assembly in a module assembly type lead wire protection device for electrical cables according to the present application. Figure 6 Fig. 4 is a structural schematic view of the release assembly in a module assembly type lead wire protection device for electrical cables according to the present application.

[0017] Fig. 1 is a perspective view of a module assembly type lead wire protection device for electrical cables according to the present application; Fig. 2 is an enlarged view of the position of the wire holding arc plate at A in Fig. 1; Fig. 3 is a structural schematic view of the position of the revolution release disc in a module assembly type lead wire protection device for electrical cables according to the present application; Fig. 4 is a structural schematic view of the release assembly in a module assembly type lead wire protection device for electrical cables according to the present application. In the drawings: 1, wire rectifying sleeve; 2, twist release wire protection sleeve; 3, bending measurement and position retaining ring; 4, monitoring telescopic rod; 5, arc-shaped contact plate; 6, direction adjusting ring; 7, hydraulic push rod; 8, wire holding arc plate; 9, adapter frame; 10, electromagnetic seat; 11, reset spring rod; 12, pendulum magnetic seat; 13, buffer pad; 14, curved corrugated sleeve; 15, limiting arc-shaped sliding groove; 16, revolution release disc; 17, rotation release ring; 18, friction rubber knob; 19, fender; 20, U-shaped pull rod; 21, sand breaking cone. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present application, it should be noted that unless otherwise expressly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0021] Embodiment, refer to Figures 1 to 6 A module assembly lead wire protection device for electrical cable comprises a wire straightening sleeve 1 and a plurality of twist release lead wire sleeves 2, and a bending measurement retaining ring 3 is connected to the end of the wire straightening sleeve 1, and a bending measurement assembly for detecting the bending direction of the coiled cable is arranged in the bending measurement retaining ring 3; Further, the wire straightening sleeve 1 is fixedly connected with the twist release lead wire sleeve 2 through an adapter frame 9, and the twist release lead wire sleeve 2 is detachably assembled with a curved corrugated sleeve 14, the bending measurement assembly comprises a plurality of monitoring expansion rods 4 fixed on the inner wall of the bending measurement retaining ring 3, an arc contact plate 5 is fixedly connected to the piston rod end of the monitoring expansion rod 4, and a pressure sensor is arranged in the monitoring expansion rod 4; It should be noted that the end of the coiled cable to be laid is inserted into the twist release lead wire sleeve 2 from the fender 19, and the cable passes through the self-rotating release ring 17 on the public twist release disc 16, then a plurality of twist release lead wire sleeves 2 are assembled in sequence, and then the end of the cable passes through between the electromagnetic seat 10 and the pendulum magnetic seat 12, and then passes through between the two wire holding arc plates 8 and the plurality of arc contact plates 5, and the end of the cable is fixed, in the process of laying, the traction of the U-shaped pull rod 20 is utilized to realize the traction movement of the whole assembly, and the synchronous expansion of the coiled cable is matched, the sand cone 21 can reduce the movement resistance of the device, and the sand in the groove is prevented from entering the device, with the continuous laying of the cable, the curved cable will unevenly press the plurality of arc contact plates 5 in the bending measurement retaining ring 3, so that each monitoring expansion rod 4 is pressed differently, and then the pressure sensor in the monitoring expansion rod 4 is utilized to judge the direction in which the cable bends; A direction adjusting ring 6 is arranged in the wire straightening sleeve 1, two symmetrical wire holding arc plates 8 are connected to the inner wall of the direction adjusting ring 6, and a pendulum assembly for releasing the bending stress of the cable is arranged on one side of the wire holding arc plate 8; Further, a turning groove is formed in the inner wall of the wire straightening sleeve 1, the turning groove is rotationally connected with the direction adjusting ring 6, the direction adjusting ring 6 is fixedly connected with the wire holding arc plate 8 through the hydraulic push rod 7, the pendulum assembly comprises an electromagnetic seat 10 fixed on the inner end face of the adapter frame 9, the electromagnetic seat 10 is connected with a pendulum magnetic seat 12 through two reset spring rods 11, and the electromagnetic seat 10 and the pendulum magnetic seat 12 are fixedly connected with a buffer pad 13; It needs to be explained: control the rotating direction of the steering ring 6, adjust the rotating direction of the two holding line arc plates 8, and then use the hydraulic push rod 7 to clamp the two sides of the cable bending direction, and adjust the cable bending direction to the upper side. In this process, the electromagnetic seat 10 is energized with a gap, and the reciprocating swing of the pendulum magnetic seat 12 is realized. Based on the above benefits: the cable is reciprocatingly swung between the buffer pads 13, and the stress of the bent cable is released; A plurality of twist release wire protection sleeves 2 are connected by a plurality of curved wave sleeves 14. The inner wall of the twist release wire protection sleeve 2 is connected with two symmetrical limiting arc-shaped sliding grooves 15. The limiting arc-shaped sliding grooves 15 are connected with a release assembly for gradually releasing the superimposed twist of the cable. The twist release wire protection sleeve 2 at the end is connected with a mudguard 19. The mudguard 19 is provided with a traction assembly. Further, the release assembly includes a revolution release disc 16 slidingly arranged on the inner wall of the limiting arc-shaped sliding groove 15. The two limiting arc-shaped sliding grooves 15 are respectively fixedly connected with the left and right inner walls of the twist release wire protection sleeve 2. The revolution release disc 16 is provided with a friction groove. The friction groove is rotatably connected with a revolution release ring 17 on the inner side wall. The revolution release ring 17 is fixedly connected with a plurality of friction rubber knots 18 on the inner side wall. The traction assembly includes a U-shaped pull rod 20 fixed on the mudguard 19. The mudguard 19 is fixedly connected with a sand breaking cone 21. It needs to be explained: during the laying process, the holding line arc plate 8 will continuously adjust the laying direction of the cable to avoid the cable from being twisted after laying. During the adjustment process, the twist of the cable will be transmitted to the subsequent un-laid part, and the rotating trend generated by the twist will make the revolution release disc 16 rotate in the limiting arc-shaped sliding groove 15, releasing part of the superimposed twist. As the cable is continuously laid, the superimposed twist transmitted is larger and will be concentrated at the revolution release ring 17. When the twist is large, the friction limiting of the revolution release ring 17 is insufficient, so that the cable rotates at the revolution release ring 17, thereby releasing the large twist at this position. The revolution release ring 17 can again superimpose a certain twist. The previously released twist is transmitted to the revolution release disc 16 and the revolution release ring 17 in the next twist release wire protection sleeve 2, and gradually releases the twist to the subsequent revolution release disc 16 and revolution release ring 17, avoiding the local twist of the cable during the laying process, which causes damage to the insulation protective layer. After a section of cable is laid, all the twists can be completely released at the end of the cable. The twist release wire protection sleeve 2 is arranged so that the cable does not contact the groove during the laying process, avoiding the friction between the insulation protective layer of the cable and the sand in the groove. Based on the above benefits: in this way, the local twist of the cable during the laying process can be controlled in a safe state, avoiding damage to the cable caused by excessive local twist, so that the cable can be protected during the laying and wiring process. In use, the end of the coiled cable to be laid is inserted into the twist release protective sleeve 2 from the fender 19, and the cable is passed through the self-rotating release ring 17 on the public release disc 16, then a plurality of twist release protective sleeves 2 are assembled in turn, and then the cable end is passed through the electromagnetic seat 10 and the pendulum magnetic seat 12, then through the two wire holding arc plates 8 and the plurality of arc-shaped contact plates 5, and the cable end is fixed. During laying, the U-shaped pull rod 20 is pulled to realize the traction movement of the entire assembly, and the synchronous unwinding of the coiled cable is matched. The sand cone 21 can reduce the movement resistance of the device and prevent sand in the trench from entering the device. As the cable is continuously laid, the curved cable will unevenly press the plurality of arc-shaped contact plates 5 in the bending fixing ring 3, so that each monitoring expansion rod 4 is pressed differently, and then the pressure sensor in the monitoring expansion rod 4 is used to determine the direction in which the cable is bent, and then the feedback control is used to adjust the rotating direction of the steering ring 6, to drive the two wire holding arc plates 8 to rotate and adjust the direction, and then the hydraulic push rod 7 is used to clamp the two sides of the bending direction of the cable, and the bending direction of the cable is adjusted to the upper side. In this process, the electromagnetic seat 10 is energized with a gap to realize the reciprocating swing of the pendulum magnetic seat 12, so that the cable swings back and forth between the buffer pads 13 to release the stress of the curved cable. During laying, the wire holding arc plate 8 continuously adjusts the laying direction of the cable to avoid twisting after laying. During adjustment, the twist of the cable will be transmitted and superimposed on the subsequent un-laid part. The rotation trend generated by the twist will make the public release disc 16 rotate in the limiting arc-shaped sliding groove 15, releasing part of the superimposed twist. As the cable is continuously laid, the transmitted and superimposed twist becomes larger and concentrates at the self-rotating release ring 17. When the twist is large, the friction limit at the self-rotating release ring 17 is insufficient, causing the cable to rotate at the self-rotating release ring 17, thereby releasing the larger twist at this point. The self-rotating release ring 17 can again superimpose a certain twist. The previously released twist is transmitted to the public release disc 16 and the self-rotating release ring 17 in the next twist release protective sleeve 2, and as the twist is continuously transmitted and superimposed, it is gradually distributed to the subsequent public release disc 16 and self-rotating release ring 17 for twist release, avoiding excessive local twist of the cable during laying, which can cause damage to the insulation layer. After a section of cable is laid, all the twists can be completely released at the end of the cable. The twist release protective sleeve 2 is provided to prevent the cable from contacting the trench during laying, avoiding friction between the insulation layer of the cable and the sand in the trench. In this way, the local twist of the cable can be controlled in a safe state during laying, avoiding damage to the cable caused by excessive local twist, so that the cable can be protected during laying and winding.

[0022] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A modular assembled lead wire protection device for an electrical cable, comprising a wire correction sleeve (1) and a plurality of twist release wire protection sleeves (2), characterized in that: The end of the line-correcting sleeve (1) is connected to a bend-detecting retaining ring (3), a bend-detecting assembly for detecting the bending direction of the wound cable is provided in the bend-detecting retaining ring (3), a direction-adjusting ring (6) is provided in the line-correcting sleeve (1), two symmetrically arranged line-holding arc plates (8) are connected to the inner side wall of the direction-adjusting ring (6), and a swing assembly for releasing the bending stress of the cable is provided on one side of the line-holding arc plate (8); A plurality of the twist-releasing cable protection sleeves (2) are connected via a plurality of curved corrugated sleeves (14); the inner sidewalls of the twist-releasing cable protection sleeves (2) are connected to two symmetrically arranged limiting arc-shaped sliding grooves (15); the limiting arc-shaped sliding grooves (15) are connected to a releasing assembly for gradually releasing the superimposed twist of the cable; the twist-releasing cable protection sleeves (2) at the end are connected to a fender (19); and a traction assembly is provided on the fender (19).

2. A modular assembled lead wire protection device for an electrical cable according to claim 1, characterized in that: The wire correction sleeve (1) is fixedly connected to the twist-releasing wire protection sleeve (2) via an adapter frame (9), and the twist-releasing wire protection sleeve (2) and the curved corrugated sleeve (14) are detachably assembled.

3. A modular assembled lead wire protection device for an electrical cable according to claim 1, characterized in that: The bending measuring assembly comprises a plurality of monitoring telescopic rods (4) fixed on the inner wall of the bending measuring retaining ring (3), the piston rod ends of the monitoring telescopic rods (4) are fixedly connected to arc-shaped touch plates (5), and pressure sensors are provided in the monitoring telescopic rods (4).

4. A modular assembled lead wire protection device for an electrical cable according to claim 1, characterized in that: The inner side wall of the line correction sleeve (1) is provided with a steering groove, the steering groove is rotatably connected to the direction adjustment ring (6), and the direction adjustment ring (6) is fixedly connected to the line holding arc plate (8) via a hydraulic push rod (7).

5. A modular assembled lead wire protection device for an electrical cable according to claim 2, characterized in that: The swing assembly comprises an electromagnetic base (10) fixed on the inner end surface of the adapter frame (9), the electromagnetic base (10) is connected to a swing magnetic base (12) via two return spring rods (11), and the electromagnetic base (10) and the swing magnetic base (12) are both fixedly connected to a buffer pad (13).

6. A modular assembled lead wire protection device for an electrical cable according to claim 1, characterized in that: The release assembly comprises a revolving release disc (16) slidably arranged on the inner wall of a limited arc-shaped sliding groove (15), and the two limited arc-shaped sliding grooves (15) are fixedly connected to the inner walls of the left and right sides of the torsion release wire protection sleeve (2) respectively.

7. A modular assembled lead wire protection device for an electrical cable according to claim 6, characterized in that: A friction groove is provided on the revolution release disc (16), and a rotation release ring (17) is rotatably connected to the inner side wall of the friction groove. A plurality of friction rubber buttons (18) are fixedly connected to the inner side wall of the rotation release ring (17).

8. The modular assembled lead wire protection device for an electrical cable according to claim 1, characterized in that: The traction assembly comprises a U-shaped pull rod (20) fixed on a fender (19), and the fender (19) is fixedly connected to a sand-breaking cone (21).

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