CN221093159U

CN221093159U - Cable pay-off for communication engineering

Info

Publication number: CN221093159U
Application number: CN202420985592.6U
Authority: CN
Inventors: 何夏颖; 蔡子亮; 闫伟
Original assignee: Liaoning Jiaxin Communication Technology Co ltd
Current assignee: Liaoning Jiaxin Communication Technology Co ltd
Priority date: 2024-05-09
Filing date: 2024-05-09
Publication date: 2024-06-07
Anticipated expiration: 2034-05-09

Abstract

The application relates to the technical field of paying-off devices, and discloses a cable paying-off device for communication engineering, which comprises a first supporting plate, a first electric telescopic rod, a second supporting plate, a second electric telescopic rod, a third supporting plate, a first rotating shaft, a fourth supporting plate, a second rotating shaft and a limiting ring. In the use, place the cable dish behind the inside of opening, control first electric telescopic handle work can drive the second backup pad and do linear motion, makes first pivot and second pivot just to the both ends of cable dish respectively at last. And then controlling the second electric telescopic rod to work, and driving the third supporting plate to do linear motion. At this time, the first rotating shaft is firstly inserted into one end of the cable tray, and then the cable tray is pushed to move, so that the second rotating shaft is inserted into the other end of the cable tray. Until the limiting rings at the two sides respectively prop against the two ends of the cable tray, the cable tray can be clamped and fixed. And the cable drum is not required to be lifted, so that the operation is simple and labor-saving.

Description

Cable pay-off for communication engineering

Technical Field

The application relates to the technical field of paying-off devices, in particular to a cable paying-off device for communication engineering.

Background

At present, in the process of erecting cables, the cables need to be released by corresponding devices one by one. Related art (publication number: CN 219098326U) discloses a telecommunication engineering user outer cable pay-off rack, which comprises a supporting plate. The support plate is provided with a distance adjusting structure, the distance adjusting structure comprises a screw, two ends of the screw are respectively connected with a first support frame and a second support frame in a sliding mode, fixing pieces are respectively connected to the first support frame and the second support frame, and a winding cable is arranged between the fixing pieces. The first support frame is provided with a rotating structure, the rotating structure comprises a transmission rod which is rotationally connected with the first support frame, and the transmission rod is connected with the fixing piece.

In the process of implementing the above embodiments, it is found that at least the following problems exist in the related art:

The distance between the first support frame and the second support frame can be adjusted through the design of the distance adjusting structure. And then change the distance between the both sides mounting, can carry out the centre gripping to the not unidimensional coiling cable fixed to be applicable to the unwrapping wire work of not unidimensional coiling cable. However, when the coiled cable is clamped and fixed, the coiled cable needs to be lifted to be between the fixing pieces at two sides, and then two ends of the coiled cable can be fixed. Because cables tend to be heavy, they are laborious.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of utility model

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a cable paying-off device for communication engineering, which is convenient for fixing a cable drum.

In some embodiments, the cable pay-off device for communication engineering includes: the first support plate comprises a notch which is used for accommodating the cable tray; the first electric telescopic rod is arranged on the first supporting plate; the second support plate is arranged at the moving end of the first electric telescopic rod and is positioned above the first support plate along the height direction of the electric telescopic rod; the second electric telescopic rod is arranged on the second supporting plate, and the moving direction of the moving end of the second electric telescopic rod is perpendicular to the moving direction of the moving end of the first electric telescopic rod; the third support plate is connected to the moving end of the second electric telescopic rod; the first rotating shaft is rotatably arranged on the third supporting plate and is used for being inserted into one end of the cable tray; the fourth supporting plate is connected with the second supporting plate, and the fourth supporting plate and the third supporting plate are positioned on two sides of the notch; the second rotating shaft is rotatably arranged on the fourth supporting plate and is used for being inserted into the other end of the cable drum; the limiting rings are respectively arranged on the first rotating shaft and the second rotating shaft and are used for propping against two ends of the cable tray; any one of the first rotating shaft and the second rotating shaft can be controlled to rotate so as to drive the cable drum to rotate.

Optionally, the method further comprises: a driving motor for providing a driving force; the coupler is arranged between the rotating end of the driving motor and the first rotating shaft; the first rotating shaft is driven by the driving motor to rotate.

Optionally, the method further comprises: the driving motor is arranged on the motor mounting plate; and one end of the supporting rod is connected with the motor mounting plate, and the other end of the supporting rod is connected with the third supporting plate.

Optionally, the method further comprises: a guide rail mounted to the second support plate; the sliding block is slidably arranged on the guide rail and is connected with the third supporting plate; the moving direction of the sliding block relative to the guide rail is the same as the moving direction of the moving end of the second electric telescopic rod.

Optionally, the method further comprises: and the limiting pin is arranged on the second supporting plate and is positioned at the end part of the guide rail.

Optionally, the method further comprises: the first bearing seat is arranged on the third supporting plate and is positioned outside the first rotating shaft; and the first bearing is arranged between the first bearing seat and the first rotating shaft.

Optionally, the method further comprises: the second bearing seat is arranged on the fourth supporting plate and is positioned outside the second rotating shaft; and the second bearing is arranged between the second bearing seat and the second rotating shaft.

Optionally, the method further comprises: the support seat is arranged on the second support plate; wherein, the second electric telescopic rod is installed in the supporting seat.

Optionally, the method further comprises: a caster mounted to the first support plate; wherein, along the thickness direction of first backup pad, the truckle with first electric telescopic handle is located the both sides of first backup pad.

The embodiment of the disclosure provides a cable pay-off device for communication engineering, which can realize the following technical effects:

the embodiment of the disclosure provides a cable pay-off for communication engineering, including first backup pad, first electric telescopic handle, second backup pad, second electric telescopic handle, third backup pad, first pivot, fourth backup pad, second pivot and spacing ring. The first backup pad includes the opening, and the opening is used for holding the cable dish. The first electric telescopic rod is arranged on the first supporting plate and used for providing driving force. The second support plate is arranged at the moving end of the first electric telescopic rod and is driven by the first electric telescopic rod to perform linear motion. The second electric telescopic rod is arranged on the second supporting plate and used for providing driving force. The third support plate is connected to the moving end of the second electric telescopic rod and is driven by the second electric telescopic rod to perform linear motion. The first rotating shaft is rotatably arranged on the third supporting plate, can rotate relative to the third supporting plate and is used for being inserted into one end of the cable tray. The fourth supporting plate is connected to the second supporting plate and is used for supporting and installing a rotatable second rotating shaft. The second rotating shaft is rotatably arranged on the fourth supporting plate, can do rotary motion relative to the fourth supporting plate and is used for being inserted into the other end of the cable tray. The limiting rings are respectively arranged on the first rotating shaft and the second rotating shaft and used for propping against the two ends of the cable tray, and limiting and fixing the cable tray. Any one of the first rotating shaft and the second rotating shaft can be controlled to rotate so as to drive the cable drum to rotate, and therefore paying-off operation is conducted.

In the use, place the cable dish behind the inside of opening, control first electric telescopic handle work can drive the second backup pad and do linear motion. The position of the second supporting plate relative to the first supporting plate is changed, and finally the first rotating shaft and the second rotating shaft are respectively aligned to the two ends of the cable tray. And then the second electric telescopic rod is controlled to work, so that the third supporting plate can be driven to do linear motion, and the position of the third supporting plate relative to the second supporting plate is changed. At this time, the first rotating shaft is firstly inserted into one end of the cable tray, and then the cable tray is pushed to move, so that the second rotating shaft is inserted into the other end of the cable tray. Until the limiting rings at the two sides respectively prop against the two ends of the cable tray, the cable tray can be clamped and fixed. And the cable drum is not required to be lifted, so that the operation is simple and labor-saving, and the cable drum is convenient to clamp and fix. Finally, the first electric telescopic rod is controlled to work again, so that the cable drum which is clamped and fixed can be lifted, and paying-off work can be carried out.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

Fig. 1 is a schematic cross-sectional structure of a cable pay-off device for communication engineering according to an embodiment of the present disclosure;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at A;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 4 is a schematic cross-sectional view of the structure at C-C in FIG. 1;

Fig. 5 is a schematic front view of a cable paying-off device for communication engineering according to an embodiment of the present disclosure.

Reference numerals:

1: a first support plate; 2: a first electric telescopic rod; 3: a second support plate; 4: a second electric telescopic rod; 5: a third support plate; 6: a first rotating shaft; 7: a fourth support plate; 8: a second rotating shaft; 9: a limiting ring; 10: a driving motor; 11: a coupling; 12: a motor mounting plate; 13: a support rod; 14: a guide rail; 15: a slide block; 16: a first bearing seat; 17: a second bearing seat; 18: a support base; 19: casters; 20: a guide cylinder; 21: a guide shaft; 22: a linear bearing.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprising," "including," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

As shown in fig. 1 to 5, the embodiment of the present disclosure provides a cable pay-off device for communication engineering, which includes a first support plate 1, a first electric telescopic rod 2, a second support plate 3, a second electric telescopic rod 4, a third support plate 5, a first rotating shaft 6, a fourth support plate 7, a second rotating shaft 8 and a limiting ring 9. The first support plate 1 comprises a notch for accommodating a cable tray. The first electric telescopic rod 2 is mounted to the first support plate 1. The second support plate 3 is mounted at the moving end of the first electric telescopic rod 2, and the second support plate 3 is located above the first support plate 1 along the height direction of the electric telescopic rod. The second electric telescopic rod 4 is mounted on the second support plate 3, and the moving direction of the moving end of the second electric telescopic rod 4 is perpendicular to the moving direction of the moving end of the first electric telescopic rod 2. The third support plate 5 is connected to the moving end of the second electric telescopic rod 4. The first rotating shaft 6 is rotatably mounted to the third supporting plate 5 for insertion into one end of the cable drum. The fourth support plate 7 is connected to the second support plate 3, and the fourth support plate 7 and the third support plate 5 are located at both sides of the opening. The second rotating shaft 8 is rotatably installed on the fourth supporting plate 7 and is used for being inserted into the other end of the cable tray. The limiting rings 9 are respectively arranged on the first rotating shaft 6 and the second rotating shaft 8 and are used for propping against the two ends of the cable tray. Wherein, any one of the first rotating shaft 6 and the second rotating shaft 8 can be controlled to rotate so as to drive the cable drum to rotate.

The embodiment of the disclosure provides a cable pay-off for communication engineering, which comprises a first support plate 1, a first electric telescopic rod 2, a second support plate 3, a second electric telescopic rod 4, a third support plate 5, a first rotating shaft 6, a fourth support plate 7, a second rotating shaft 8 and a limiting ring 9. The first support plate 1 comprises a notch for accommodating a cable tray. The first electric telescopic rod 2 is mounted to the first support plate 1 for providing a driving force. The second support plate 3 is mounted on the moving end of the first electric telescopic rod 2 and is driven by the first electric telescopic rod 2 to perform linear motion. A second electric telescopic rod 4 is mounted to the second support plate 3 for providing a driving force. The third support plate 5 is connected to the moving end of the second electric telescopic rod 4, and is driven by the second electric telescopic rod 4 to perform linear motion. The first shaft 6 is rotatably mounted to the third support plate 5, and is capable of rotational movement relative to the third support plate 5 for insertion into one end of the cable drum. The fourth support plate 7 is connected to the second support plate 3 for supporting and mounting a rotatable second rotation shaft 8. The second rotating shaft 8 is rotatably mounted on the fourth supporting plate 7, and can rotate relative to the fourth supporting plate 7 for being inserted into the other end of the cable tray. The limiting rings 9 are respectively arranged on the first rotating shaft 6 and the second rotating shaft 8 and are used for propping against the two ends of the cable tray, and limiting and fixing the cable tray. Wherein, any one of the first rotating shaft 6 and the second rotating shaft 8 can be controlled to rotate so as to drive the cable drum to rotate, thereby carrying out paying-off operation.

In the use, place the cable dish behind the inside of opening, control first electric telescopic handle 2 work can drive second backup pad 3 and do linear motion. The position of the second support plate 3 relative to the first support plate 1 is changed, and finally the first rotating shaft 6 and the second rotating shaft 8 are respectively aligned with the two ends of the cable tray. And then the second electric telescopic rod 4 is controlled to work, so that the third support plate 5 can be driven to linearly move, and the position of the third support plate 5 relative to the second support plate 3 is changed. At this time, the first shaft 6 is first inserted into one end of the cable tray, and then the cable tray is pushed to move, so that the second shaft 8 is inserted into the other end of the cable tray. Until the limiting rings 9 at the two sides respectively prop against the two ends of the cable tray, the cable tray can be clamped and fixed. And the cable drum is not required to be lifted, so that the operation is simple and labor-saving, and the cable drum is convenient to clamp and fix. Finally, the first electric telescopic rod 2 is controlled to work again, so that the cable drum which is clamped and fixed can be lifted for paying off.

Optionally, as shown in connection with fig. 1 and 5, a drive motor 10 and a coupling 11 are also included. The driving motor 10 is used to provide driving force. The coupling 11 is mounted between the rotating end of the drive motor 10 and the first shaft 6. Wherein the first shaft 6 is driven by a driving motor 10 to perform a rotational motion.

In the embodiment of the present disclosure, a driving motor 10 and a coupling 11 are further included. In the use process, after the cable tray is clamped and fixed on the limiting rings 9 on two sides, the driving motor 10 is controlled to work, and the first rotating shaft 6 can be driven to rotate through the coupler 11. Under the supporting action of the second rotating shaft 8 and the driving of the limiting rings 9 at the two sides, the cable drum can rotate. Thereby pay off the cable of winding in the cable dish, accomplish the unwrapping wire work of cable.

Optionally, as shown in connection with fig. 1 and 5, a motor mounting plate 12 and a strut 13 are also included. The drive motor 10 is mounted to a motor mounting plate 12. One end of the supporting rod 13 is connected with the motor mounting plate 12, and the other end of the supporting rod 13 is connected with the third supporting plate 5.

In the disclosed embodiment, motor mounting plate 12 and strut 13 are also included. One end of the strut 13 is connected to the third support plate 5 and the other end is connected to the motor mounting plate 12 for determining the relative position of the third support plate 5 and the motor mounting plate 12. The motor mounting plate 12 is used for supporting and mounting the driving motor 10 to fix the position of the driving motor 10.

Optionally, as shown in connection with fig. 1 and 5, a guide rail 14 and a slider 15 are also included. The guide rail 14 is mounted to the second support plate 3. The slider 15 is slidably mounted to the guide rail 14 and is connected to the third support plate 5. Wherein the direction of movement of the slider 15 relative to the guide rail 14 is the same as the direction of movement of the moving end of the second electric telescopic rod 4.

In the disclosed embodiment, a guide rail 14 and a slider 15 are also included. The guide rail 14 and the slider 15 are used for guiding and supporting to improve the stability of the third support plate 5 when moving and reduce the stress of the moving end of the second electric telescopic rod 4.

Optionally, as shown in connection with fig. 1 and 5, a stop pin is also included. The limiting pin is mounted on the second support plate 3 and is located at the end of the guide rail 14.

In the embodiment of the present disclosure, a limiting pin mounted to the second support plate 3 and located at an end of the guide rail 14 is further included. The limiting pin is used for limiting, so that the sliding block 15 is prevented from falling off the guide rail 14.

Optionally, as shown in connection with fig. 1 and 2, a first bearing housing 16 and a first bearing are also included. The first bearing housing 16 is mounted to the third support plate 5 and is located outside the first rotation shaft 6. The first bearing is mounted between the first bearing housing 16 and the first shaft 6.

In the disclosed embodiment, a first bearing housing 16 and a first bearing are also included. The first bearing seat 16 is mounted on the third support plate 5 and is used for supporting and mounting the first bearing and limiting the first bearing. The first bearing is used for supporting and installing the rotatable first rotating shaft 6, reducing the friction force born by the first rotating shaft 6 and improving the rotation precision of the first rotating shaft 6.

Optionally, as shown in connection with fig. 1, a second bearing 17 and a second bearing are also included. The second bearing 17 is mounted to the fourth support plate 7 and is located outside the second rotating shaft 8. The second bearing is mounted between the second bearing 17 and the second rotating shaft 8.

In the embodiment of the present disclosure, the second bearing seat 17 is mounted to the fourth support plate 7 for supporting and mounting the second bearing, and limiting the second bearing. The second bearing is used for supporting and installing the rotatable second rotating shaft 8, reducing the friction force born by the second rotating shaft 8 and improving the rotation precision of the second rotating shaft 8.

Optionally, as shown in connection with fig. 1 and 5, a support base 18 is also included. The support base 18 is mounted to the second support plate 3. Wherein the second electric telescopic rod 4 is mounted on the support base 18.

In the embodiment of the present disclosure, the support base 18 is further included to be mounted to the second support plate 3. The support seat 18 is used for supporting and installing the second electric telescopic rod 4 so as to facilitate the disassembly of the second electric telescopic rod 4.

Optionally, as shown in connection with fig. 1, 4 and 5, casters 19 are also included. Casters 19 are mounted to the first support plate 1. Wherein, in the thickness direction of the first support plate 1, the caster 19 and the first electric telescopic rod 2 are located at both sides of the first support plate 1.

In the embodiment of the present disclosure, the caster 19 mounted to the first support plate 1 is further included. Casters 19 are used to bear against the ground to support the entire device.

Optionally, as shown in connection with fig. 1, 2, 3 and 5, a guiding drum 20 and a guiding shaft 21 are also included. The guide cylinder 20 is connected to one of the first support plate 1 and the second support plate 3. The guide shaft 21 is adapted to be coupled to the other of the first support plate 1 and the second support plate 3, and is slidably installed inside the guide cylinder 20. Wherein the relative movement direction of the guide cylinder 20 and the guide shaft 21 is the same as the movement direction of the moving end of the first electric telescopic rod 2.

In the disclosed embodiment, a guide cylinder 20 and a guide shaft 21 are further included. The guide cylinder 20 and the guide shaft 21 serve as guide supports to improve stability when the second support plate 3 moves relative to the first support plate 1 and to reduce stress at the moving end of the first electric telescopic rod 2.

Optionally, as shown in connection with fig. 1, 2, 3 and 5, a linear bearing 22 is also included. The linear bearing 22 is sleeved on the guide shaft 21 and is mounted at the port of the guide cylinder 20.

In the disclosed embodiment, a linear bearing 22 is also included. The linear bearing 22 serves to reduce friction between the guide cylinder 20 and the guide shaft 21 and to improve accuracy in the relative movement of the guide cylinder 20 and the guide shaft 21.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A cable pay-off for communication engineering, comprising:

The first support plate comprises a notch which is used for accommodating the cable tray;

the first electric telescopic rod is arranged on the first supporting plate;

The second support plate is arranged at the moving end of the first electric telescopic rod and is positioned above the first support plate along the height direction of the electric telescopic rod;

The second electric telescopic rod is arranged on the second supporting plate, and the moving direction of the moving end of the second electric telescopic rod is perpendicular to the moving direction of the moving end of the first electric telescopic rod;

the third support plate is connected to the moving end of the second electric telescopic rod;

The first rotating shaft is rotatably arranged on the third supporting plate and is used for being inserted into one end of the cable tray;

The fourth supporting plate is connected with the second supporting plate, and the fourth supporting plate and the third supporting plate are positioned on two sides of the notch;

The second rotating shaft is rotatably arranged on the fourth supporting plate and is used for being inserted into the other end of the cable drum;

the limiting rings are respectively arranged on the first rotating shaft and the second rotating shaft and are used for propping against two ends of the cable tray;

Any one of the first rotating shaft and the second rotating shaft can be controlled to rotate so as to drive the cable drum to rotate.

2. The cable pay-off device for communication engineering according to claim 1, further comprising:

a driving motor for providing a driving force;

the coupler is arranged between the rotating end of the driving motor and the first rotating shaft;

The first rotating shaft is driven by the driving motor to rotate.

3. The cable pay-off device for communication engineering according to claim 2, further comprising:

The driving motor is arranged on the motor mounting plate;

and one end of the supporting rod is connected with the motor mounting plate, and the other end of the supporting rod is connected with the third supporting plate.

4. The cable pay-off device for communication engineering according to claim 1, further comprising:

a guide rail mounted to the second support plate;

the sliding block is slidably arranged on the guide rail and is connected with the third supporting plate;

The moving direction of the sliding block relative to the guide rail is the same as the moving direction of the moving end of the second electric telescopic rod.

5. The cable pay-off device for communication engineering according to claim 4, further comprising:

And the limiting pin is arranged on the second supporting plate and is positioned at the end part of the guide rail.

6. The cable pay-off for communication engineering according to any one of claims 1 to 5, further comprising:

The first bearing seat is arranged on the third supporting plate and is positioned outside the first rotating shaft;

and the first bearing is arranged between the first bearing seat and the first rotating shaft.

7. The cable pay-off for communication engineering according to any one of claims 1 to 5, further comprising:

the second bearing seat is arranged on the fourth supporting plate and is positioned outside the second rotating shaft;

And the second bearing is arranged between the second bearing seat and the second rotating shaft.

8. The cable pay-off for communication engineering according to any one of claims 1 to 5, further comprising:

The support seat is arranged on the second support plate;

wherein, the second electric telescopic rod is installed in the supporting seat.

9. The cable pay-off for communication engineering according to any one of claims 1 to 5, further comprising:

a caster mounted to the first support plate;

Wherein, along the thickness direction of first backup pad, the truckle with first electric telescopic handle is located the both sides of first backup pad.