CN110994492A

CN110994492A - Space-limited cable bridge connecting method

Info

Publication number: CN110994492A
Application number: CN201911294189.9A
Authority: CN
Inventors: 陈炜; 鲁丽兰; 程仕亿; 刘鸿庄
Original assignee: China 19th Metallurgical Group Co ltd
Current assignee: China 19th Metallurgical Group Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-04-10

Abstract

The invention provides a cable bridge connecting method with limited space, and relates to the technical field of cable bridge installation, aiming at the problem that the connection between cable bridges is difficult under the condition that the space at the upper part of the cable bridge is limited. The method comprises the following steps: set up the first bar hole that extends along cable testing bridge length direction respectively at cable testing bridge both ends, set up the second bar hole that extends along connection piece length direction respectively at connection piece both ends, align the second bar hole of connection piece one end and the first bar hole of the cable testing bridge of not installing and obtain first connecting hole after, from the first connecting hole in pack into T type bolt and lock with the nut, obtain and treat the coupling part, align the second bar hole of the other end of the connection piece that will treat on the coupling part and obtain the second connecting hole after the first bar hole of the cable testing bridge of having installed, pack into T type bolt and lock with the nut in the second connecting hole. The method is simpler and more convenient, and is beneficial to improving the construction efficiency.

Description

Space-limited cable bridge connecting method

Technical Field

The invention relates to the technical field of cable bridge installation, in particular to a cable bridge connecting method with limited space.

Background

The cable bridge is widely applied to various fields and mainly plays a role in protecting cables. The cable tray is generally U-shaped and slotted, and the notch of the cable tray faces upwards when the cable tray is installed. In the existing cable bridge connecting method, the bridge and the bridge are connected by adopting a connecting sheet and a bolt, the bolt is required to be installed from the reserved space of an expansion plate at the upper part of the bridge during installation, and then the nut is screwed from the outside. The method requires enough space on the upper part of the cable bridge to place connecting pieces and bolts, and relevant specifications of the bridge require that the height of the space is generally not lower than 2.5m when the bridge is laid horizontally, so that the situation that the space reserved on the upper part of the bridge cannot meet the operation requirement often exists in practical projects, and the existing connection method between the bridge and the cable bridge can cause the connection between the cable bridges to be difficult.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the problem that the cable bridges are difficult to connect under the condition that the space at the upper parts of the cable bridges is limited, a cable bridge connecting method with limited space is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a method of connecting cable trays with limited space, the method comprising:

the method comprises the following steps: providing a T-shaped bolt, wherein the T-shaped bolt comprises a T head and a screw rod vertically connected to the T head;

step two: the two ends of the cable bridge are respectively provided with a first strip-shaped hole extending along the length direction of the cable bridge, the two ends of the connecting piece are respectively provided with a second strip-shaped hole extending along the length direction of the connecting piece, and the sizes of the first strip-shaped hole and the second strip-shaped hole are matched with the T head of the T-shaped bolt;

step three: aligning a second strip-shaped hole at one end of the connecting sheet with a first strip-shaped hole of an unmounted cable bridge to obtain a first connecting hole, and loading a T-shaped bolt from the first connecting hole and locking the T-shaped bolt by using a nut to obtain a part to be connected;

step four: and aligning a second strip-shaped hole at the other end of the connecting sheet on the part to be connected with the first strip-shaped hole of the installed cable bridge to obtain a second connecting hole, and installing a T-shaped bolt in the second connecting hole and locking the T-shaped bolt by using a nut.

Further, the nut is a flange nut.

Furthermore, in the third step, after the T-shaped bolt is installed in the first connection hole, the connection piece is moved, so that no redundant gap exists between the first connection hole and the screw rod of the T-shaped bolt, and then the first connection hole and the screw rod of the T-shaped bolt are locked by the nut.

Furthermore, in the fourth step, after the T-shaped bolt is installed in the second connecting hole, the part to be connected is moved, so that no redundant gap exists between the second connecting hole and the screw rod of the T-shaped bolt, and then the screw rod is locked by the nut.

The invention has the beneficial effects that: after the method is adopted, the T-shaped bolt can be installed from the side face of the cable bridge, so that the method can adapt to construction in any environment, does not need to reserve a large manual operation space, is simpler and more convenient, and is beneficial to improving the construction efficiency.

Drawings

FIG. 1 is a schematic structural view of a T-bolt;

FIG. 2 is a schematic view of a cable tray configuration of the present invention;

FIG. 3 is a schematic view of a tab construction of the present invention;

FIG. 4 is a schematic structural view of a portion to be connected in an embodiment of the present invention;

FIG. 5 is a top view of FIG. 4

FIG. 6 is a schematic view of a cable tray to cable tray connection of the present invention;

FIG. 7 is a schematic structural view of a portion to be connected in another embodiment of the present invention;

shown in the figure: t type bolt 1, cable testing bridge 2, connection piece 3, nut 4, first connecting hole 5 treat connecting portion 6, second connecting hole 7, T head 11, screw rod 12, wallboard 8, first bar hole 21, second bar hole 31.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

As shown in fig. 1 to 6, the method for connecting a cable tray with limited space of the present invention includes:

the method comprises the following steps: a T-bolt 1 is provided comprising a T-head 11 and a shank 12 connected perpendicularly to the T-head 11.

Step two: set up respectively at 2 both ends of cable testing bridge 2 along the first bar hole 21 that 2 length direction of cable testing bridge extended, set up respectively at 3 both ends of connection piece along the second bar hole 31 that 3 length direction of connection piece extended, first bar hole 21 and second bar hole 31 size all with the T head 11 adaptations of T type bolt 1. The first slotted hole 21 at each end of the cable tray 2 and the second slotted hole 31 at each end of the connecting piece 3 may be one or more. First bar hole 21 and second bar hole 31 size all with T type bolt 1's T head 11 adaptation, the length of first bar hole 21 and second bar hole 31 is unanimous approximately with T type bolt 1's T head length promptly, the width also is unanimous approximately with T type bolt 1's T head width, T type bolt 1's T head 11 both can pass from first bar hole 21 and second bar hole 31 like this, makes things convenient for follow-up locking bolt again.

Step three: and aligning the second strip-shaped hole 31 at one end of the connecting sheet 3 with the first strip-shaped hole 21 of the uninstalled cable bridge 2 to obtain a first connecting hole 5, and installing the T-shaped bolt 1 into the first connecting hole 5 and locking the T-shaped bolt by using the nut 4 to obtain a part 6 to be connected. It can be known, in order to prevent that T type bolt 1 from dropping in the first connecting hole 5 when locking, after T type bolt 1 packs into first connecting hole 5, need the orientation of the T head 11 of T type bolt 1 of adjustment, if: the T-bolt 1 is rotated by 90 ° so that the extending direction of the T-head is perpendicular to the extending direction of the first bar-shaped hole 21 (or the second bar-shaped hole 31).

Step four: and aligning a second strip-shaped hole 31 at the other end of the connecting sheet 3 on the part 6 to be connected with the first strip-shaped hole 21 of the installed cable bridge frame 2 to obtain a second connecting hole 7, and installing the T-shaped bolt 1 from the second connecting hole 7 and locking the T-shaped bolt by using the nut 4, thereby completing the connection of the bridge frame and the bridge frame.

The third step and the fourth step can be carried out sequentially or simultaneously, the connecting piece 3 and the cable bridge 2 which is not installed are firstly connected into the part 6 to be connected, and the cable bridge 2 which is not installed on the wall plate 8, so the third step can be finished on the ground, and the installation difficulty can be reduced.

After the method is adopted, the T-shaped bolt can be installed from the side face of the cable bridge, so that the method can adapt to construction in any environment, does not need to reserve a large manual operation space, is simpler and more convenient, and is beneficial to improving the construction efficiency.

The nut 4 can be a common nut, and when the nut is a common nut, a check washer is usually required to be added between the T-shaped bolt 1 and the nut 4, and the nut 4 is a flange nut in the figure, so that the check washer is not required to be added independently.

In order to make the connection between the bridge frame and the bridge frame more stable, as shown in fig. 7, in the third step, after the T-shaped bolt 1 is installed into the first connection hole 5, the connection piece 3 is moved, so that no extra gap exists between the first connection hole 5 and the screw 12 of the T-shaped bolt 1, and then the connection piece is locked by the nut 4. That is, after the T-bolt 1 is inserted into the first connection hole 5, the connection piece 3 is moved to make the second strip-shaped hole 31 and the first strip-shaped hole 21 aligned to be dislocated to the maximum, and then locked by the nut 4, so that the T-head 11 of the T-bolt 1 cannot be pulled out from the first connection hole 5 even if the T-bolt is rotated. Similarly, in the fourth step, after the T-shaped bolt 1 is installed in the second connecting hole 7, the part 6 to be connected is moved, so that no redundant gap exists between the second connecting hole 7 and the screw 12 of the T-shaped bolt 1, and then the T-shaped bolt is locked by the nut 4.

Claims

1. A method of connecting cable trays with limited space, the method comprising:

the method comprises the following steps: providing a T-shaped bolt (1) which comprises a T head (11) and a screw rod (12) vertically connected to the T head (11);

step two: the two ends of the cable bridge (2) are respectively provided with a first strip-shaped hole (21) extending along the length direction of the cable bridge (2), the two ends of the connecting piece (3) are respectively provided with a second strip-shaped hole (31) extending along the length direction of the connecting piece (3), and the first strip-shaped hole (21) and the second strip-shaped hole (31) are matched with a T head (11) of the T-shaped bolt (1) in size;

step three: aligning a second strip-shaped hole (31) at one end of a connecting sheet (3) with a first strip-shaped hole (21) of an unmounted cable bridge (2) to obtain a first connecting hole (5), and installing a T-shaped bolt (1) from the first connecting hole (5) and locking the T-shaped bolt by using a nut (4) to obtain a part (6) to be connected;

step four: and aligning a second strip-shaped hole (31) at the other end of the connecting sheet (3) on the part (6) to be connected with a first strip-shaped hole (21) of the installed cable bridge (2) to obtain a second connecting hole (7), and installing the T-shaped bolt (1) from the second connecting hole (7) and locking the T-shaped bolt by using a nut (4).

2. The space-constrained cable tray connection method of claim 1, wherein the nut (4) is a flange nut.

3. The method for connecting a cable tray with limited space as claimed in claim 1, wherein in the third step, after the T-shaped bolt (1) is inserted into the first connecting hole (5), the connecting piece (3) is moved to make no extra gap between the first connecting hole (5) and the screw rod (12) of the T-shaped bolt (1), and then the connecting piece is locked by the nut (4).

4. The space-limited cable tray connecting method according to claim 1, wherein in the fourth step, after the T-shaped bolt (1) is inserted from the second connecting hole (7), the portion to be connected (6) is moved so that no extra gap exists between the second connecting hole (7) and the screw rod (12) of the T-shaped bolt (1), and then the portion to be connected is locked by the nut (4).