Electrical line pipe connecting device for deformation joint

Abstract

The utility model belongs to the technical field of electrical wire pipe installation, and particularly relates to an electrical wire pipe connecting device for a deformation joint, which comprises the deformation joint between two floors, a cassette is arranged in each floor, the cassettes in the two floors are connected through a flexible wire pipe assembly, and the flexible wire pipe assembly comprises a first lock nut arranged on the cassette and a second lock nut arranged on the cassette. The inner wall of the first lock nut is connected with a flexible metal hose, and the first lock nut is connected with a copper core flexible wire through a hoop wire clamp. A second lock nut is arranged on the side wall, away from the deformation joint, of the hidden box, and a hidden wiring pipe is connected to the inner wall of the second lock nut and arranged in the floor. Through the arrangement of the flexible line pipe assembly, the deformation upper limit of a deformation joint using the device is improved, the application range is widened, the situation that an electrical line pipe is broken due to the fact that the electrical line pipe is short is reduced, and the building quality is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric wire tube installation, and in particular relates to an electric wire tube connecting device for a deformation joint. Background Art

[0002] In order to avoid damage to buildings caused by factors such as temperature changes, ground subsidence and earthquakes, and to ensure the use and safety of buildings, buildings will be separated at the deformation position in advance during the design of the building structure to form relatively independent units. Leaving a certain gap between buildings can ensure that the buildings have enough deformation space. The gap is the deformation joint, which can be mainly divided into three types: expansion joint, settlement joint and seismic joint.

[0003] When electrical conduits cross expansion joints, if they are laid directly without special treatment, when the building settles and deforms, the conduits and the cables inside them will be broken under stress, resulting in serious consequences.

[0004] Chinese patent CN217956604U discloses a wire tube connection device across a deformation seam, including a deformation seam, a first junction box and a second junction box are respectively buried on both sides of the deformation seam, the first junction box and the second junction box are fixedly connected to the same connecting short tube on opposite sides, the connecting short tube is arranged to pass through the deformation seam, the connecting short tube is fixedly connected to the side wall of the first junction box, a rectangular hole is opened on the side wall of the second junction box, the right end of the connecting short tube is sleeved in the rectangular hole, the first junction box is fixedly connected to the original left wire tube on the side away from the deformation seam, and the second junction box is fixedly connected to the original right wire tube on the side away from the deformation seam.

[0005] In this patent, the gap between the stainless steel connecting short tube and the rectangular hole determines that the upper limit of the deformation of the deformation joint is low and the scope of application is small. The connecting short tube is very easy to squeeze the internal cables due to deformation, which may cause cable breakage in severe cases. Utility Model Content

[0006] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide an electrical wire tube connection device for expansion joints, which can better adapt to the deformation of buildings, increase the upper limit of the deformation of expansion joints, further protect cables, and have a wider range of uses.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] The electrical wire tube connection device for expansion joints described in the utility model comprises an expansion joint between two floor slabs, a concealed box is arranged in each floor slab, the concealed boxes in the two floor slabs are connected by a flexible wire tube assembly, the flexible wire tube assembly comprises a lock nut 1 arranged on the concealed box, a flexible metal hose is connected to the inner wall of the lock nut 1, and a copper core soft wire is connected to the lock nut 1 through a clamp wire clamp; a lock nut 2 is arranged on the side wall of the concealed box away from the expansion joint, a concealed wire tube is connected to the inner wall of the lock nut 2, and the concealed wire tube is arranged in the floor slab.

[0009] The installation of concealed wire ducts facilitates the laying of cables within the floor.

[0010] The setting of the lock nut ensures the stable and firm connection of the flexible metal hose; the setting of the flexible metal hose increases the protection of the cable.

[0011] in:

[0012] The flexible wire tube assembly bypasses the deformation joint and is connected to the dark box from the bottom surface of the floor.

[0013] By setting up the flexible wire tube assembly, the upper limit of the deformation of the deformation joint using the connecting device is increased, the scope of application is increased, and the building quality is guaranteed.

[0014] The bottom of the dark box is provided with an open end, a cover plate is fixed on the open end of the dark box, and a lock nut is installed on the cover plate.

[0015] The lock nut is arranged on the cover plate to facilitate the arrangement of the flexible wire tube assembly and to facilitate maintenance.

[0016] The cover plate is fixed to the open end of the dark box by bolts, and nuts are installed inside the dark box, and the nuts and bolts are matched.

[0017] The cover plate is provided with a long hole, a lock nut is arranged in the long hole, and the lock nut extends to the outside of the cover plate.

[0018] The lock nut can slide along the long strip hole, further improving the upper limit of the deformation amount of the deformation joint using the connecting device and increasing the scope of application.

[0019] A clamp wire clamp is fixed on the lock nut located outside the cover plate.

[0020] The setting of the clamp line clamp can ensure the electrical continuity of the system.

[0021] The plane where the cover plate is located is perpendicular to the midline of the deformation joint.

[0022] The length of the flexible metal hose is greater than the distance between the two dark boxes.

[0023] The length of the copper core soft wire is greater than or equal to the length of the flexible metal hose.

[0024] The dark boxes in the two floor slabs and the components connected to the dark boxes are all symmetrically arranged about the midline of the deformation joint.

[0025] The beneficial effects of the utility model are:

[0026] The utility model increases the upper limit of deformation of the deformation joint using the device by setting the flexible wire tube component, increases the scope of application, reduces the situation of breakage due to short electrical wire tubes, and ensures the building quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the utility model after removing the floor slab;

[0029] Figure 3 It is a structural schematic diagram of the cover plate of the utility model.

[0030] In the figure: 1. Expansion joint; 2. Floor slab; 3. Concealed wire conduit; 4. Nut; 5. Junction box; 6. Lock nut 2; 7. Bolt; 8. Cover plate; 9. Lock nut 1; 10. Flexible metal hose; 11. Wire clamp; 12. Copper core soft wire; 13. Long hole. DETAILED DESCRIPTION

[0031] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0032] like Figure 1-3 As shown, the electrical wire conduit connection device for expansion joints described in the utility model comprises an expansion joint 1 between two floor slabs 2, a junction box 5 is arranged in each floor slab 2, the junction boxes 5 in the two floor slabs 2 are connected by a flexible wire conduit assembly, the flexible wire conduit assembly comprises a lock nut 9 arranged on the junction box 5, a flexible metal hose 10 is connected to the inner wall of the lock nut 9, and the lock nut 9 is connected to a copper core soft wire 12 through a clamp wire clamp 11; a lock nut 2 6 is arranged on the side wall of the junction box 5 away from the expansion joint 1, a concealed wire conduit 3 is connected to the inner wall of the lock nut 2 6, and the concealed wire conduit 3 is arranged in the floor slab 2.

[0033] The provision of the concealed wire conduit 3 facilitates the laying of cables in the floor 2 .

[0034] The setting of the lock nut 9 ensures that the flexible metal hose 10 is connected stably and firmly; the setting of the flexible metal hose 10 increases the protection of the cable.

[0035] The flexible wire tube assembly bypasses the deformation joint 1 and is connected to the dark box 5 from the bottom surface of the floor 2.

[0036] By setting the flexible wire tube assembly, the upper limit of the deformation of the deformation joint 1 using the connecting device is increased, the scope of application is increased, and the building quality is guaranteed.

[0037] The bottom of the dark box 5 is provided with an open end, the cover plate 8 is fixed to the open end of the dark box 5, and the lock nut 9 is installed on the cover plate 8.

[0038] The lock nut 9 is arranged on the cover plate 8, which is convenient for the arrangement of the flexible wire tube assembly and for maintenance.

[0039] The cover plate 8 is fixed to the open end of the dark box 5 by means of bolts 7 . A nut 4 is installed inside the dark box 5 , and the nut 4 cooperates with the bolts 7 .

[0040] The cover plate 8 is provided with an elongated hole 13 , the lock nut 9 is arranged in the elongated hole 13 , and the lock nut 9 extends to the outside of the cover plate 8 .

[0041] The lock nut 9 can slide along the long hole 13, further increasing the upper limit of the deformation of the deformation joint 1 using the connecting device and increasing the scope of application.

[0042] A clamp wire clamp 11 is fixed on the lock nut 9 located outside the cover plate 8.

[0043] The arrangement of the clamp line clamp 11 can ensure the electrical continuity of the system.

[0044] The plane where the cover plate 8 is located is perpendicular to the midline of the deformation joint 1 .

[0045] The length of the flexible metal hose 10 is greater than the distance between the two dark boxes 5 .

[0046] The length of the copper core soft wire 12 is greater than or equal to the length of the flexible metal hose 10 .

[0047] The dark boxes 5 in the two floor slabs 2 and the components connected to the dark boxes 5 are all arranged symmetrically with respect to the center line of the deformation joint 1 .

Claims

1. An electrical conduit connection device for a deformation joint, comprising a deformation joint (1) between two floor slabs (2), characterized in that: Each floor slab (2) is provided with a dark box (5), and the dark boxes (5) in two floor slabs (2) are connected via a flexible wire tube assembly, the flexible wire tube assembly comprising a lock nut (9) arranged on the dark box (5), a flexible metal hose (10) being connected to the inner wall of the lock nut (9), and a copper core soft wire (12) being connected to the lock nut (9) via a clamp wire clamp (11); a lock nut (6) is arranged on the side wall of the dark box (5) away from the deformation joint (1), a concealed wire tube (3) being connected to the inner wall of the lock nut (6), and the concealed wire tube (3) being arranged in the floor slab (2).

2. The electrical conduit connection device for expansion joints according to claim 1, characterized in that: The flexible wire tube assembly bypasses the deformation joint (1) and is connected to the dark box (5) from the bottom surface of the floor slab (2).

3. The electrical conduit connection device for expansion joints according to claim 1, characterized in that: The bottom of the dark box (5) is provided with an open end, the cover plate (8) is fixed to the open end of the dark box (5), and the lock nut (9) is mounted on the cover plate (8).

4. The electrical conduit connection device for expansion joints according to claim 3, characterized in that: The cover plate (8) is fixed to the open end of the dark box (5) by means of bolts (7). A nut (4) is installed inside the dark box (5), and the nut (4) is arranged in cooperation with the bolts (7).

5. The electrical conduit connection device for expansion joints according to claim 3, characterized in that: The cover plate (8) is provided with an elongated hole (13), a lock nut (9) is arranged in the elongated hole (13), and the lock nut (9) extends to the outside of the cover plate (8).

6. The electrical conduit connection device for expansion joints according to claim 5, characterized in that: A clamp wire clamp (11) is fixed on a lock nut (9) located outside the cover plate (8).

7. The electrical conduit connection device for expansion joints according to claim 3, characterized in that: The plane where the cover plate (8) is located is perpendicular to the midline of the deformation joint (1).

8. The electrical conduit connection device for expansion joints according to claim 1, characterized in that: The length of the flexible metal hose (10) is greater than the distance between the two dark boxes (5).

9. The electrical conduit connection device for expansion joints according to claim 8, characterized in that: The length of the copper core soft wire (12) is greater than or equal to the length of the flexible metal hose (10).

10. The electrical conduit connection device for expansion joints according to claim 1, characterized in that: The dark boxes (5) in the two floor slabs (2) and the components connected to the dark boxes (5) are all arranged symmetrically about the midline of the deformation joint (1).

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