Cable bridge with anti-vibration function

Abstract

This utility model relates to the field of cable tray technology, specifically to a cable tray with earthquake resistance, comprising: a cable tray body and a support arm. A through hole is provided at the top of the vertical rod of the support arm, and a screw is rotatably connected in the through hole. An anti-loosening plate mounting groove is provided on the surface of the support arm. One end of the anti-loosening plate is movably inserted into the anti-loosening plate mounting groove, and the other end of the anti-loosening plate extends from the anti-loosening plate mounting groove and abuts against the side wall of the screw's nut. The beneficial effect is that by having one end of the anti-loosening plate extend from the anti-loosening plate mounting groove and abut against the side of the screw's nut, the screw is held in place by the anti-loosening plate and cannot rotate. Through the circumferential limitation of the screw by the anti-loosening plate, the screw cannot rotate during an earthquake, thus preventing the threaded connection between the screw and the screw hole from loosening. This also gives the cable tray a certain degree of earthquake resistance, preventing it from falling due to loose threads during an earthquake.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, specifically to a cable tray with anti-vibration function. Background Technology

[0002] Cable trays are rigid structural systems used to support and protect cables. Their main function is to provide stable support and protection for cables, prevent them from being damaged by external factors, and allow cables to be laid neatly and orderly, facilitating management and maintenance.

[0003] In the existing technology, cable trays come in various types, including trough type and tray type. The tray type consists of a tray body and support arms. The support arms have a "U"-shaped rod structure. The tray body is installed on the top of the horizontal bar of the support arm. The top of the two vertical bars of the support arm has through holes, and the corresponding positions on the roof have screw holes. The tray type cable tray can be laid by passing screws through the through holes and screwing them into the screw holes. The tray type cable tray has the advantages of light weight, large load capacity, beautiful appearance, simple structure and convenient installation. It is suitable for the installation of power cables and the laying of control cables. Therefore, it is widely used in petroleum, chemical, light industry, telecommunications and other industries.

[0004] However, the existing tray-type cable tray installation method does not have earthquake resistance during an earthquake. The screws are prone to loosening due to the shaking of the tray, causing the cable tray to fall from the roof and hit people who are escaping. Utility Model Content

[0005] The purpose of this invention is to provide a cable tray with earthquake resistance to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cable tray with earthquake resistance, comprising: a cable tray body and a support arm, wherein a through hole is provided at the top of the vertical rod of the support arm, a screw is rotatably connected in the through hole, the screw is installed in a screw hole by a threaded connection, the screw hole is opened on the surface of the roof, and an anti-loosening plate mounting groove is provided on the surface of the support arm, one end of the anti-loosening plate is movably inserted into the anti-loosening plate mounting groove, and the other end of the anti-loosening plate extends out of the anti-loosening plate mounting groove and abuts against the side wall of the screw nut.

[0007] Preferably, a spring is provided in the anti-loosening plate mounting groove, with one end of the spring abutting against the inner wall of the anti-loosening plate mounting groove and the other end of the spring abutting against the surface of the anti-loosening plate.

[0008] Preferably, a lever window is provided on the surface of the support arm, and a lever is movably inserted into the lever window.

[0009] Preferably, the surface of the anti-loosening plate is provided with a lever insertion groove, one end of the lever is movably inserted into the lever insertion groove, and the other end of the lever extends out from the lever window.

[0010] Preferably, a rubber ring mounting groove is provided on the inner wall of the lever insertion groove, and a rubber ring is fixed in the rubber ring mounting groove. The rubber ring has an annular plate structure, and a rubber ring insertion groove is provided on the lever body. The inner ring of the rubber ring is movably inserted into the rubber ring insertion groove.

[0011] Preferably, the end of the lever that extends into the lever insertion slot is tapered.

[0012] Preferably, a washer is fitted onto the screw shank.

[0013] Preferably, the nut of the screw has a regular hexagonal prism structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The cable tray with seismic resistance proposed in this utility model involves placing a washer on the screw shaft, passing it through the through hole, and screwing it into the screw hole. During the screw tightening process, the anti-loosening plate is fully retracted into the anti-loosening plate mounting groove. When the screw is tightened until one end of the washer abuts against the surface of the screw and the other end of the washer abuts against the surface of the support arm, the screw is slightly tightened in the tightening direction until one side of the hexagonal nut of the screw is parallel to the end of the anti-loosening plate facing the screw. Then, the screw tightening can be stopped, and at the same time, one end of the anti-loosening plate extends out of the anti-loosening plate mounting groove and abuts against the side of the screw nut, so that the screw is held in place by the anti-loosening plate and cannot rotate. Through the circumferential restraint of the screw by the anti-loosening plate, the screw cannot rotate when an earthquake occurs, so that the threaded connection between the screw and the screw hole will not loosen. This also gives the cable tray a certain seismic resistance function and prevents it from falling off due to loose threads during an earthquake. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the present invention.

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B.

[0020] In the diagram: 1. Cable tray body; 2. Support arm; 3. Roof; 4. Screw hole; 5. Through hole; 6. Screw; 7. Washer; 8. Anti-loosening plate mounting groove; 9. Anti-loosening plate; 10. Spring; 11. Toggle bar window; 12. Toggle bar insertion groove; 13. Rubber ring mounting groove; 14. Rubber ring insertion groove; 15. Rubber ring; 16. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1: Please refer to Figures 1 to 4 This utility model provides a technical solution: a cable tray with anti-seismic function, including: a cable tray body 1 and a support arm 2. The top of the vertical rod of the support arm 2 is provided with a through hole 5. A screw 6 is rotatably connected in the through hole 5. The screw 6 is installed in a screw hole 4 by a threaded connection. The screw hole 4 is opened on the surface of the roof 3. An anti-loosening plate mounting groove 8 is provided on the surface of the support arm 2. One end of the anti-loosening plate 9 is movably inserted into the anti-loosening plate mounting groove 8. The other end of the anti-loosening plate 9 extends out of the anti-loosening plate mounting groove 8 and abuts against the side wall of the nut of the screw 6. A spring 10 is provided in the anti-loosening plate mounting groove 8. One end of the spring 10 abuts against the inner wall of the anti-loosening plate mounting groove 8, and the other end of the spring 10 abuts against the surface of the anti-loosening plate 9. A washer 7 is sleeved on the screw shank of the screw 6. The nut of the screw 6 has a regular hexagonal prism structure.

[0023] In actual use, when installing cable trays, the bracket 2 is generally installed at the bottom of the roof 3 first. Then, the cable tray body 1 is laid on the crossbar of the bracket 2 and fixed with bolts. When installing the bracket 2 and the roof 3, the through holes 5 on the surface of the bracket 2 are aligned with the screw holes 4 on the surface of the roof 3. Then, a washer 7 is placed on the shaft of the screw 6, passed through the through hole 5, and screwed into the screw hole 4. During the screw 6 tightening process, the anti-loosening plate 9 is fully retracted into the anti-loosening plate mounting groove 8. When the screw 6 is tightened to the point where one end of the washer 7 abuts against the surface of the screw 6 and the other end of the washer 7 abuts against the surface of the bracket 2. Then, continue to slightly tighten the screw 6 in the tightening direction until one side of the hexagonal nut of the screw 6 is parallel to the end of the anti-loosening plate 9 facing the screw 6. Then stop tightening the screw 6, and at the same time, let one end of the anti-loosening plate 9 protrude from the anti-loosening plate mounting groove 8 and abut against the side of the nut of the screw 6, so that the screw 6 is held in place by the anti-loosening plate 9 and cannot rotate. By limiting the circumferential movement of the screw 6 by the anti-loosening plate 9, the screw 6 cannot rotate when an earthquake occurs, so that the threaded connection between the screw 6 and the screw hole 4 will not loosen. This also gives the cable tray a certain earthquake resistance function and prevents it from falling off due to loose threads during an earthquake.

[0024] Example 2: Based on Example 1, in order to achieve position control of the anti-loosening plate 9, a lever window 11 is provided on the surface of the support arm 2, a lever 12 is movably inserted into the lever window 11, a lever insertion groove 13 is provided on the surface of the anti-loosening plate 9, one end of the lever 12 is movably inserted into the lever insertion groove 13, and the other end of the lever 12 extends out from the lever window 11.

[0025] When the anti-loosening plate 9 needs to be fully retracted into the anti-loosening plate mounting groove 8, simply move the lever 12 upwards. The lever 12 moves upwards in the lever window 11, and one end of the lever 12 is inserted into the lever insertion groove 13, thereby driving the anti-loosening plate 9 to move upwards, so that the anti-loosening plate 9 is fully retracted into the anti-loosening plate mounting groove 8. At this time, the spring 10 is compressed. When one end of the anti-loosening plate 9 needs to be extended out of the anti-loosening plate mounting groove 8 again, the spring 10 pushes the anti-loosening plate 9 outwards under its own elasticity until the lever 12 abuts against the inner wall of the lever window 11. At this time, the reaction force of the inner wall of the lever window 11 on the lever 12 is transmitted to the anti-loosening plate 9. The anti-loosening plate 9 is also simultaneously pushed by the spring 10. The two forces are opposite in direction and equal in magnitude, so that the anti-loosening plate 9 maintains the state in which one end extends out of the anti-loosening plate mounting groove 8 and the other end stays in the anti-loosening plate mounting groove 8.

[0026] Example 3: Based on Example 2, in order to replace the spring 10, a rubber ring mounting groove 14 is provided on the inner wall of the groove of the lever insertion groove 13. A rubber ring 16 is fixed in the rubber ring mounting groove 14. The rubber ring 16 has an annular plate structure. A rubber ring insertion groove 15 is provided on the rod of the lever 12. The inner ring of the rubber ring 16 is movably inserted into the rubber ring insertion groove 15. The end of the lever 12 that extends into the lever insertion groove 13 is tapered.

[0027] When the spring 10 needs to be replaced, forcefully pull the lever 12 out of the lever insertion slot 13. Then, the anti-loosening plate 9 can be removed from the anti-loosening plate mounting slot 8, and the old spring 10 can also be removed from the anti-loosening plate mounting slot 8. Then, insert the new spring 10 into the anti-loosening plate mounting slot 8, and then insert the anti-loosening plate 9 back into the anti-loosening plate mounting slot 8. After that, insert the lever 12 back into the lever insertion slot 13. When the lever 12 is inserted back, the conical surface of the lever insertion slot 13 pushes the inner wall of the rubber ring 16, causing the rubber ring 16 to be compressed and completely retracted into the rubber ring mounting slot 14. When the rubber ring insertion slot 15 is aligned with the rubber ring mounting slot 14, the rubber ring 16 returns to its original shape under the action of elasticity, so that the inner ring of the rubber ring 16 is re-inserted into the rubber ring insertion slot 15, thereby limiting the lever 12 in the lever insertion slot 13, completing the replacement of the spring 10.

[0028] In actual use, when installing cable trays, the bracket 2 is generally installed at the bottom of the roof 3 first. Then, the cable tray body 1 is laid on the crossbar of the bracket 2 and fixed with bolts. When installing the bracket 2 and the roof 3, the through holes 5 on the surface of the bracket 2 are aligned with the screw holes 4 on the surface of the roof 3. Then, the washer 7 is placed on the shank of the screw 6, passed through the through hole 5, and screwed into the screw hole 4. During the screw 6 tightening process, the anti-loosening plate 9 is fully retracted into the anti-loosening plate mounting groove 8. When the screw 6 is tightened until one end of the washer 7 abuts against the surface of the screw 6 and the other end of the washer 7 abuts against the surface of the bracket 2, the screw 6 is slightly tightened in the tightening direction until one side of the hexagonal nut of the screw 6 is exposed. With the anti-loosening plate 9 parallel to the end of the screw 6, the screw 6 can be stopped from being tightened. Simultaneously, one end of the anti-loosening plate 9 extends from the anti-loosening plate mounting groove 8 and abuts against the side of the screw 6's nut, preventing the screw 6 from rotating. By limiting the circumferential movement of the screw 6 with the anti-loosening plate 9, the screw 6 cannot rotate during an earthquake, thus preventing the threaded connection between the screw 6 and the screw hole 4 from loosening. This also gives the cable tray a certain degree of earthquake resistance, preventing it from falling due to loose threads during an earthquake. When the anti-loosening plate 9 needs to be fully retracted into the anti-loosening plate mounting groove 8, simply move the lever 12 upwards. The lever 12 moves upwards in the lever window 11, and one end of the lever 12 inserts into the lever insertion groove 13. Moving the anti-loosening plate 9 upwards allows it to fully retract into the anti-loosening plate mounting slot 8, compressing the spring 10. When one end of the anti-loosening plate 9 needs to extend out of the mounting slot 8 again, the spring 10, under its own elasticity, pushes the anti-loosening plate 9 outwards until the lever 12 abuts against the inner wall of the lever window 11. At this point, the reaction force of the inner wall of the lever window 11 on the lever 12 is transmitted to the anti-loosening plate 9, and the anti-loosening plate 9 is simultaneously pushed by the spring 10. The two forces are opposite in direction and equal in magnitude, thus maintaining the state where one end of the anti-loosening plate 9 extends out of the mounting slot 8 while the other end remains in the mounting slot 8. When the spring 10 needs to be replaced, forcefully pull the lever 12 out of the lever insertion slot 13, and then... Remove the anti-loosening plate 9 from the anti-loosening plate mounting slot 8, and the old spring 10 can also be removed from the anti-loosening plate mounting slot 8. Then, insert the new spring 10 into the anti-loosening plate mounting slot 8, and then insert the anti-loosening plate 9 back into the anti-loosening plate mounting slot 8. After that, insert the lever 12 back into the lever insertion slot 13. When the lever 12 is inserted back, the conical surface of the lever insertion slot 13 pushes the inner wall of the rubber ring 16, causing the rubber ring 16 to be compressed and completely retracted into the rubber ring mounting slot 14. When the rubber ring insertion slot 15 is aligned with the rubber ring mounting slot 14, the rubber ring 16 returns to its original shape under the action of elasticity, so that the inner ring of the rubber ring 16 is re-inserted into the rubber ring insertion slot 15, thereby limiting the lever 12 in the lever insertion slot 13, and completing the replacement of the spring 10.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable tray with seismic resistance, comprising: The cable tray body (1) and the support arm (2) are provided with a through hole (5) at the top of the vertical rod of the support arm (2). A screw (6) is rotatably connected in the through hole (5). The screw (6) is installed in the screw hole (4) by threaded connection. The screw hole (4) is opened on the surface of the roof (3). The characteristic is that an anti-loosening plate mounting groove (8) is opened on the surface of the support arm (2). One end of the anti-loosening plate (9) is movably inserted into the anti-loosening plate mounting groove (8). The other end of the anti-loosening plate (9) extends out from the anti-loosening plate mounting groove (8) and abuts against the side wall of the nut of the screw (6).

2. A cable tray with seismic resistance according to claim 1, characterized in that: A spring (10) is provided in the anti-loosening plate mounting groove (8). One end of the spring (10) abuts against the inner wall of the anti-loosening plate mounting groove (8), and the other end of the spring (10) abuts against the surface of the anti-loosening plate (9).

3. A cable tray with seismic resistance according to claim 2, characterized in that: The support arm (2) has a lever window (11) on its surface, and a lever (12) is movably inserted into the lever window (11).

4. A cable tray with seismic resistance according to claim 3, characterized in that: The surface of the anti-loosening plate (9) is provided with a lever insertion groove (13), one end of the lever (12) is movably inserted into the lever insertion groove (13), and the other end of the lever (12) extends out from the lever window (11).

5. A cable tray with seismic resistance according to claim 4, characterized in that: The inner wall of the lever insertion groove (13) is provided with a rubber ring mounting groove (14), and a rubber ring (16) is fixed in the rubber ring mounting groove (14). The rubber ring (16) has an annular plate structure. The lever (12) is provided with a rubber ring insertion groove (15), and the inner ring of the rubber ring (16) is movably inserted into the rubber ring insertion groove (15).

6. A cable tray with seismic resistance according to claim 5, characterized in that: The end of the lever (12) that extends into the lever insertion groove (13) is tapered.

7. A cable tray with seismic resistance according to claim 1, characterized in that: A washer (7) is fitted onto the screw (6).

8. A cable tray with seismic resistance according to claim 1, characterized in that: The nut of the screw (6) has a regular hexagonal prism structure.

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