Cable bridge cover plate fixer

Abstract

The utility model discloses a cable bridge cover plate fixer, which comprises a thin plate internal thread fastener matched with a cable bridge screw hole, a screwing nut and an anti-falling steel sheet, the screwing nut is provided with a screw rod, and the size of an external thread of the screw rod is matched with an internal thread of the thin plate internal thread fastener. According to the utility model, only the screw hole is required to be formed in the cable bridge, then the thin plate internal thread fastener is arranged on the screw hole of the cable bridge, the cover plate is covered and aligned with the hole, the screw rod of the screwing nut is aligned with the internal screw hole of the thin plate internal thread fastener, and the bridge cover plate is screwed and pressed, so that the installation and the disassembly are convenient, firm and reliable; especially for a vertically-installed bridge cover plate, the fixator can completely eliminate the major potential safety hazard that the bridge cover plate is not firmly fixed and falls off, in the using process, the fixator and the cable bridge do not need to be completely separated, the cover plate can be taken out from the cable bridge, and the situation that fixing parts are lost in the disassembling and assembling process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the device for fastening or fixing component or machine parts, especially relates to a cable bridge cover plate fixer. BACKGROUND

[0002] Cable bridge is the general term of rigid structure system for supporting cable, has a large number of uses in infrastructure construction, often needs to open cable bridge cover plate in the use process due to the increase of cable line, cable inspection, cleaning and other reasons, now conventional cover plate fixing mode adopts screw, lock catch, hoop and so on, all exist operation troublesome, low reliability, exist security hidden danger and so on, especially for the bridge cover plate of vertical installation, once the cover plate slides, not only will lose the original protection function to cable, still can hurt the equipment and personnel below. SUMMARY

[0003] The utility model provides a cable bridge cover plate fixer convenient to install and disassemble.

[0004] The utility model discloses the following technical scheme: a cable bridge cover plate fixer, including the thin plate internal thread fastener for with cable bridge 5 screw hole cooperation, and the screw nut 2 and the anti-falling steel sheet 3, the bolt of internal and external thread bolt 1 is covered with an outer hexagonal thin nut 4, is used for with cable bridge 5 screw hole cooperation.

[0005] The screw nut 2 adopts the screw nut with screw rod 2.1, and the outer thread size of screw rod 2.1 is matched with the internal thread of thin plate internal thread fastener.

[0006] The anti-falling steel sheet 3 is used to prevent the loss of screw nut 2 after the disassembly of bridge cover plate 6, the anti-falling steel sheet 3 is long strip steel sheet, and the sleeve ring 7 with the inner ring diameter greater than the outer diameter of thin plate internal thread fastener is arranged at one end of long strip steel sheet, the circular ring 8 with the inner ring diameter greater than the outer diameter of screw rod 2.1 of screw nut 2 is arranged at the other end, and the long strip steel sheet is externally sleeved with a transparent cover, which wraps the long strip steel sheet between sleeve ring 7 and circular ring 8.

[0007] The sleeve ring 7 of anti-falling steel sheet 3 is sleeved on the bolt between the outer hexagonal thin nut 4 and the head of internal and external thread bolt 1, and the circular ring 8 is sleeved on the screw rod 2.1 between the nut and the internal hexagonal head of screw nut 2.

[0008] The thin plate internal thread fastener is draw-in rivet nut 1.1 or internal and external thread bolt 1, when the internal and external thread bolt 1, the bolt of internal and external thread bolt 1 is covered with an outer hexagonal thin nut 4.

[0009] Preferably, the bolt exterior of the inner and outer threaded bolt 1 is a conventional external thread, and an internal thread is further processed inside the external thread area to form a nested structure of "threaded sleeve threads", the external thread is fixed on the cable bridge 5, and the internal thread is fixed on the cover plate 6 after penetrating through the cover plate 6 and the cable bridge 5.

[0010] Preferably, a nylon gasket 9 is arranged on the screw rod 2.1 at the front end of the nut 2, which is used to isolate the nut 2 and the surface of the bridge cover plate 6, and prevent the nut 2 from scratching the paint surface of the bridge cover plate 6.

[0011] The folded edge 10 of the bridge cover plate 6 is increased to 22mm, and a long oval hole 11 is opened at the corresponding position. The long oval hole solves the alignment error caused by the processing error of the bridge groove and the cover plate, and ensures that the bridge cover plate 6 and the cable bridge 5 groove can be reliably aligned.

[0012] Beneficial effects: the utility model only needs to open a screw hole on the cable bridge, then install the thin plate inner threaded fastener on the cable bridge screw hole, cover the cover plate and align the hole, align the inner threaded hole of the thin plate inner threaded fastener with the screw rod of the nut and tighten it to press the bridge cover plate, which is convenient to install and disassemble, firm and reliable, especially for the vertically installed bridge cover plate, the fixator can completely eliminate the significant safety hidden danger caused by the insecure fixing of the bridge cover plate, and in the use process, the cover plate can be taken out from the cable bridge without completely separating the fixator from the cable bridge, which avoids the loss of fixed parts during disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of the cable bridge cover plate fixator of the utility model embodiment 1.

[0014] Figure 2 It is a structure schematic view of the anti-falling steel sheet of the utility model.

[0015] Figure 3 It is a structure schematic view when connecting the cable bridge and the bridge cover plate.

[0016] Figure 4 It is a structure schematic view when removing the bridge cover plate of the utility model embodiment 1.

[0017] Figure 5 It is a structure schematic view of the cable bridge cover plate fixator of the utility model embodiment 2.

[0018] Figure 6 It is a structure schematic view when removing the bridge cover plate of the utility model embodiment 2.

[0019] In the figure: inner and outer threaded bolt 1, pull rivet nut 1.1, tightening nut 2, screw rod 2.1, anti-falling steel sheet 3, outer hexagonal thin nut 4, cable bridge 5, bridge cover plate 6, collar 7, circular ring 8, nylon gasket 9, folded edge 10, long oval hole 11. DETAILED DESCRIPTION

[0020] The utility model is further illustrated below in combination with the drawings and examples.

[0021] Example 1: as shown in Fig. 4, a cable bridge cover plate fixer comprises an inner and outer threaded bolt 1, a tightening nut 2 and an anti-falling steel sheet 3. Figure 1

[0022] The bolt of the inner and outer threaded bolt 1 is externally provided with a conventional external thread, and an internal thread is further processed inside the external thread area, forming a nested structure of "threaded sleeve thread", and an outer hexagonal thin nut 4 is sleeved on the bolt, used for cooperating with the screw hole of the cable bridge 5, and the outer hexagonal thin nut 4 installed inside the cable bridge 5 can prevent the protruding part from scratching the cable. The external thread is fixed on the cable bridge 5, and the internal thread is fixed on the cover plate 6 after penetrating the cover plate 6 and the cable bridge 5.

[0023] The tightening nut 2 is a tightening nut with a screw rod 2.1, and the external thread size of the screw rod 2.1 cooperates with the internal thread of the bolt of the inner and outer threaded bolt 1, and the screw rod 2.1 at the front end of the tightening nut 2 is provided with a nylon gasket 9, used for isolating the tightening nut 2 and the surface of the bridge cover plate 6, preventing the tightening nut 2 from scratching the paint surface of the bridge cover plate 6.

[0024] The anti-falling steel sheet 3 is used for preventing the tightening nut 2 from being lost after the bridge cover plate 6 is disassembled, the anti-falling steel sheet 3 is a long strip-shaped steel sheet, and a collar 7 with an inner ring diameter larger than the outer diameter of the bolt of the inner and outer threaded bolt 1 is arranged at one end of the long strip-shaped steel sheet, and a circular ring 8 with an inner ring diameter larger than the outer diameter of the screw rod 2.1 of the tightening nut 2 is arranged at the other end, and a transparent cover is sleeved outside the long strip-shaped steel sheet, which wraps and clamps the long strip-shaped steel sheet between the collar 7 and the circular ring 8.

[0025] The collar 7 of the anti-falling steel sheet 3 is sleeved on the bolt between the outer hexagonal thin nut 4 and the head of the inner and outer threaded bolt 1; and the circular ring 8 is sleeved on the screw rod 2.1 between the nut and the inner hexagonal head of the tightening nut 2.

[0026] ​Working principle: before the cable tray 5 is installed with the cover plate 6, the holes are opened according to the fixed size on the side of the cable tray 5, and the long oval hole 11 is opened on the side of the cover plate 6. The above two holes are uniformly sized and opened when the cable tray is produced. The anti-falling steel sheet 3 and the inner and outer threaded bolts 1 are inserted through the screw holes of the cable tray 5, the inside of the cable tray 5 is tightened with the outer hexagonal thin nut 4, the tightening nut 2 with the screw rod 2.1 is connected with the anti-falling steel sheet 3, the nylon gasket 9 is installed on the screw rod 2.1 of the tightening nut, then the cover plate 6 is covered and aligned with the hole, then the screw rod 2.1 of the tightening nut 2 is aligned with the inner threaded hole of the inner and outer threaded bolts 1 and is tightened to press the cable tray cover plate 6. The movement of the cable tray cover plate 6 in the transverse and longitudinal directions is limited, so as to fix the cable tray cover plate. The opening method: loosen the tightening nut 2, and the cable tray cover plate 6 can be opened. At this time, the anti-falling steel sheet 3 can prevent the tightening nut 2 from being lost.

[0027] Example 2: as shown in Figure 2 、 3 , 5, 6, a cable tray cover plate fixer, comprising a rivet nut 1.1, a tightening nut 2 and an anti-falling steel sheet 3.

[0028] The tightening nut 2 adopts a tightening nut with a screw rod 2.1, and the outer thread size of the screw rod 2.1 matches the inner thread of the rivet nut 1.1. The screw rod 2.1 at the front end of the tightening nut 2 is provided with a nylon gasket 9, which is used to isolate the tightening nut 2 and the surface of the cable tray cover plate 6, and prevent the tightening nut 2 from scratching the paint surface of the cable tray cover plate 6.

[0029] The anti-falling steel sheet 3 is used to prevent the tightening nut 2 from being lost after the cable tray cover plate 6 is disassembled. The anti-falling steel sheet 3 is a long strip-shaped steel sheet, and a sleeve ring 7 with an inner ring diameter larger than the outer diameter of the rivet nut 1.1 is arranged at one end of the long strip-shaped steel sheet, and a circular ring 8 with an inner ring diameter larger than the outer diameter of the screw rod 2.1 of the tightening nut 2 is arranged at the other end. A transparent cover is sleeved outside the long strip-shaped steel sheet, which wraps the long strip-shaped steel sheet between the sleeve ring 7 and the circular ring 8.

[0030] The sleeve ring 7 of the anti-falling steel sheet 3 is sleeved between the rivet nut 1.1 and the head; the circular ring 8 is sleeved on the screw rod 2.1 between the nut and the inner hexagonal head of the tightening nut 2.

[0031] Working principle: before the cable bridge 5 has not installed cover plate 6, in the cable bridge 5 side according to fixed size hole, long oval hole 11 in the cover plate 6 side, the above two holes by the bridge production when uniform size open well. Will prevent falling steel sheet 3 and pull rivet nut 1.1 through the cable bridge 5 screw hole and fixed cable bridge 5, will take screw rod 2.1 with the screw nut 2 and will prevent falling steel sheet 3 connection, will install nylon gasket 9 on the screw rod 2.1 of screw nut, then cover cover plate 6 and align the hole, then the screw rod 2.1 of screw nut 2 align the inner hole of pull rivet nut 1.1 and tighten and press the bridge cover plate 6. Bridge cover plate 6 along the transverse, longitudinal movement is limited to the cable bridge cover plate fixed. Open method: loosen the screw nut 2, can open the bridge cover plate 6, at this time prevent falling steel sheet 3 can prevent the screw nut 2 loss.

Claims

1. A cable tray cover fastener, characterized by: It comprises a thin plate internal thread fastener for matching with the screw hole of the cable bridge (5), a screwing nut (2) and a falling prevention steel sheet (3); The screwing nut (2) is a screwing nut with a screw rod (2.1), and the outer thread size of the screw rod (2.1) matches with the inner thread of the thin plate internal thread fastener; The falling prevention steel sheet (3) is used for preventing the screwing nut (2) from being lost after the bridge cover plate (6) is disassembled, the falling prevention steel sheet (3) is a long strip steel sheet, and a sleeve ring (7) with an inner ring diameter larger than the outer diameter of the thin plate internal thread fastener is arranged at one end of the long strip steel sheet, and a circular ring (8) with an inner ring diameter larger than the outer diameter of the screw rod (2.1) of the screwing nut (2) is arranged at the other end; the sleeve ring (7) of the falling prevention steel sheet (3) is sleeved on the thin plate internal thread fastener; and the circular ring (8) is sleeved on the screw rod (2.1) between the nut and the inner hexagonal head of the screwing nut (2).

2. The cable tray cover fastener of claim 1, wherein: The thin plate internal thread fastener is a pull rivet nut (1.1).

3. The cable tray cover fastener of claim 1, wherein: The thin plate internal thread fastener is an internal and external thread bolt (1), and an outer hexagonal flat thin nut (4) is sleeved on the bolt of the internal and external thread bolt (1).

4. The cable tray cover fastener of claim 3, wherein: The outer part of the bolt of the internal and external thread bolt (1) is a conventional external thread, and an internal thread penetrating the internal thread area of the external thread is further processed, forming a nested structure of "thread sleeve thread".

5. A cable tray cover fastener according to any one of claims 1 to 3, wherein: A nylon gasket (9) is arranged on the screw rod (2.1) at the front end of the nut of the screwing nut (2).

6. A cable tray cover fastener according to any one of claims 1 to 3, wherein: The outer part of the long strip steel sheet is sleeved with a transparent cover which wraps the long strip steel sheet between the clamping sleeve ring (7) and the circular ring (8).

7. A cable tray cover fastener according to any one of claims 1 to 3, wherein: The folded edge (10) of the bridge cover plate (6) is increased to 22 mm, and a long oval hole (11) is opened at the corresponding position.

8. The cable tray cover fastener of claim 6, wherein: The folded edge (10) of the bridge cover plate (6) is increased to 22 mm, and a long oval hole (11) is opened at the corresponding position.

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