Electric engineering cable threading auxiliary device

Abstract

The utility model discloses an electrical engineering cable threading auxiliary device, which belongs to the technical field of cable wiring, comprises an internal threaded pipe and a lantern ring, and is characterized in that an external threaded pipe is spirally arranged in the internal threaded pipe and is spirally mounted on the internal threaded pipe, and the internal threaded pipe is connected with the lantern ring through a group of connecting rods. An instantaneous tensioning mechanism is arranged in the external threaded pipe and used for preventing the cable from being separated when the cable is dragged, and a locking nut is arranged on the external threaded pipe, so that the technical problem that a large amount of construction period is consumed when the cable is dragged manually for threading in the electrical engineering construction is solved, and the device is mainly applied to the aspect of cable wiring.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable wiring, and particularly relates to an auxiliary device for cable threading in electrical engineering. Background Art

[0002] In the construction of electrical engineering, the laying of cables is undoubtedly a decisive and crucial task. The traditional method of cable threading usually simply relies on manual dragging, and this method often requires the coordinated operation of many workers.

[0003] For example, in a large-scale commercial center electrical construction project, the length of the laid cables may reach tens of thousands of meters. At this time, if only relying on manual dragging, dozens or even hundreds of workers may need to be recruited, which undoubtedly consumes a large amount of manpower and workers are easily injured.

[0004] Moreover, this pure manual operation method is extremely inefficient in actual construction. Take the electrical renovation project of a multi-story office building as an example. Due to numerous cables and complex circuits, relying on manual dragging of cables may take weeks or even months to complete. During this long process, problems such as workers making operational mistakes due to fatigue or the traction rope breaking and causing cable damage are likely to occur, thus further increasing the construction difficulty and cost. In view of the above problems, our company has developed an auxiliary device for cable threading in electrical engineering. Content of the Utility Model

[0005] Object of the Invention: The object of the utility model is to provide an auxiliary device for cable threading in electrical engineering to solve the technical problem of the large amount of construction period consumed by manually dragging cables for threading in electrical engineering construction.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] An auxiliary device for cable threading in electrical engineering includes an internally threaded pipe and a collar. The internally threaded pipe is connected to the collar through a set of connecting rods. Its characteristics are as follows: An externally threaded pipe is spirally arranged inside the internally threaded pipe, the externally threaded pipe is spirally installed on the internally threaded pipe, an instantaneous tensioning mechanism is arranged inside the externally threaded pipe, the instantaneous tensioning mechanism is used to prevent the cable from detaching during dragging, and a locking nut is arranged on the externally threaded pipe.

[0008] Preferably, the instantaneous tensioning mechanism includes a ring and a wedge. A set of wedges are circumferentially arranged on the ring, a set of anti-slip pads are arranged on the wedges, the wedges enter the externally threaded pipe, and the anti-slip pads are in close contact with the cable.

[0009] Preferably, a knocking plate is arranged on the ring.

[0010] Preferably, the number of knocking plates is 2, and the knocking plates are symmetrically installed on both sides of the ring.

[0011] Preferably, the number of wedges is 4.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The staff hold the collar with both hands and kick the knocking plate forcefully, so that the cable is preliminarily limited in this device. Then, the collar is put on the hook behind the forklift tail to tow the cable. As the forklift keeps pulling, it gets tighter and tighter.

[0014] After the wiring is completed, the forklift reverses to leave a moving distance for the wedge. Two staff members strike the knocking plate simultaneously, so that the wedge disengages from the external thread tube, and the cable head is removed. It is convenient and fast. Compared with the prior art, using mechanical dragging of the cable greatly improves the wiring efficiency and installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the present utility model Figure 1 ;

[0016] Figure 2 is a plan view of the present utility model;

[0017] Figure 3 is an internal structure diagram of the instantaneous tensioning mechanism of the present utility model.

[0018] In the figure: 1. internal thread tube; 2. collar; 3. connecting rod; 4. external thread tube; 5. instantaneous tensioning mechanism; 6. locking nut; 51. circular ring; 52. wedge; 53. anti-slip pad; 7. knocking plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0020] In one embodiment, referring to Figures 1-3 , the present utility model provides a technical solution: an electrical engineering cable threading auxiliary device, including an internal thread tube 1 and a collar 2. The internal thread tube 1 is connected to the collar 2 through a set of connecting rods 3. It is characterized in that: an external thread tube 4 is spirally arranged inside the internal thread tube 1, the external thread tube 4 is spirally installed on the internal thread tube 1, an instantaneous tensioning mechanism 5 is arranged inside the external thread tube 4, and the instantaneous tensioning mechanism 5 is used to prevent the cable from disengaging when being dragged. A locking nut 6 is arranged on the external thread tube 4, and the external thread tube 4 is screwed off from the internal thread tube 1 through the locking nut 6 to check whether the instantaneous tensioning mechanism 5 is damaged. Such a design is also convenient for replacement.

[0021] In one embodiment, the instantaneous tensioning mechanism 5 includes a ring 51 and wedges 52. A set of wedges 52 are circumferentially arranged on the ring 51. The number of wedges 52 is 4. A set of anti-slip pads 53 are arranged on the wedges 52. The wedges 52 enter the external threaded tube 4. The cable is threaded between the wedges 52. The anti-slip pads 53 are in close contact with the cable. The instantaneous tensioning mechanism 5 instantaneously tensions the cable to prevent the cable from displacing.

[0022] In one embodiment, a knocking plate 7 is arranged on the ring 51. The number of knocking plates 7 is 2. The knocking plates 7 are symmetrically installed on both sides of the ring 51. The cable is threaded between the wedges 52 with a certain distance reserved. At this time, the anti-slip pads 53 are in close contact with the cable and there is friction between them. The staff hold the collar 2 with both hands and kick the knocking plate 7 forcefully, so that the cable is preliminarily limited in the device. Then the collar 2 is put on the hook at the rear of the forklift to tow the cable. As the forklift continuously pulls, it gets tighter and tighter. Using a machine to drag the cable greatly improves the wiring efficiency.

[0023] In one embodiment, after the wiring is completed, the forklift reverses to leave a moving distance for the wedges 52. Two staff members simultaneously knock the knocking plates 7 to make the wedges 52 disengage from the external threaded tube 4, remove the cable head, and the forklift drives away.

[0024] Without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments all fall within the scope of the present utility model.

Claims

1. Electrical engineering cable threading auxiliary device, comprising an internal thread tube (1) and a collar (2), the internal thread tube (1) is connected to the collar (2) through a set of connecting rods (3), and is characterized in that: The external threaded tube (4) is spirally arranged inside the internal threaded tube (1). The external threaded tube (4) is spirally installed on the internal threaded tube (1). An instantaneous tensioning mechanism (5) is arranged inside the external threaded tube (4), and a lock nut (6) is arranged on the external threaded tube (4).

2. The electrical engineering cable threading auxiliary device according to claim 1, characterized in that: The instantaneous tensioning mechanism (5) includes a ring (51) and a wedge (52). A set of wedges (52) is circumferentially arranged on the ring (51). A set of anti-slip pads (53) is arranged on the wedges (52). The wedges (52) enter the external threaded tube (4), and a striking plate (7) is arranged on the ring (51).

3. The electrical engineering cable threading auxiliary device according to claim 2, wherein: The number of the striking plates (7) is two, and the striking plates (7) are symmetrically installed on both sides of the ring (51).

4. The electrical engineering cable threading auxiliary device according to claim 2, wherein: The number of the wedges (52) is four.

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