Bridge crosspiece convenient to replace

Abstract

The utility model provides a bridge crosspiece convenient to replace, which comprises an independent bridge crosspiece and a crosspiece mounting rack, a rolling support mechanism is inserted into the top of the independent bridge crosspiece, fixing rods are welded at the tops of two ends of the crosspiece mounting rack, and the inner sides of the fixing rods are mounted on the outer sides of bridge side plates through bolts. A plurality of positioning holes are formed in the inner side of the crosspiece mounting frame, the distances between the positioning holes are the same, positioning columns are welded to the outer side of the bottom of the independent bridge crosspiece, and the tail ends of the positioning columns are embedded into the positioning holes. According to the bridge crosspiece convenient to replace, a plurality of independent bridge crosspieces are mounted and supported by using the crosspiece mounting frame, and each independent bridge crosspiece can be manually contracted by matching a middle elastic structure with a grip at the bottom, so that the independent bridge crosspieces can be quickly pulled out downwards from the bottom of a bridge, the dismounting difficulty is reduced, and the replacement efficiency is improved. The distance between each two independent bridge crosspieces can be adjusted, and the whole crosspieces can be quickly and simultaneously dismounted.

Description

Technical Field

[0001] The utility model relates to the field of cable trays, in particular to a cable tray crossbar that is convenient to replace. Background Technique

[0002] The cable tray crossbar is a part of the cable tray, which is used to support and fix the cables to ensure the safety and stability of the cables. It is an important part of the cable tray structure and plays an important role in ensuring the normal operation and safety of the cables. According to the prior art, such as a new type of cable tray described in the Chinese patent document CN210957658U, the disclosed technical solution firmly fixes the cable tray cover plate and the cable tray side plate together through the centripetal moment, which is convenient to install and safe to use. It solves the problem that the existing cable trays are prone to looseness when frequently affected by wind and vibration, and has a stable structure and is safe to use; the locking hook material can use non-metallic materials, which has good corrosion resistance and good flame retardancy.

[0003] Judging from the disclosed technical solution, the cable tray crossbar in the prior art, as a structure directly supporting the cables, is prone to problems such as rust and deformation during long-term use. Once damaged, it needs to be replaced. When replacing the conventional cable tray crossbar, it needs to be disassembled as a whole after unlocking from both ends directly, resulting in a time-consuming and laborious disassembly process. Moreover, if one end area is damaged, the entire cable tray crossbar needs to be replaced, which increases the maintenance difficulty. In addition, different cable tray crossbars will generate a large frictional force during the cable threading stage, making the threading process more difficult. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a cable tray crossbar that is convenient to replace, so as to solve the problems raised in the above background technique. The utility model can replace the damaged area specifically and provides rolling support during the cable threading stage, reducing the construction difficulty.

[0005] In order to achieve the above purpose, the utility model is realized by the following technical solutions: A cable tray crossbar that is convenient to replace, including an independent cable tray crossbar and a crossbar mounting frame. A rolling support mechanism is inserted through the top of the independent cable tray crossbar. Fixed rods are welded to the tops of both ends of the crossbar mounting frame, and the inner sides of the fixed rods are installed on the outer sides of the cable tray side plates using bolts. A plurality of positioning holes are opened inside the crossbar mounting frame, and the spacing between each positioning hole is the same. A positioning post is welded to the outer side of the bottom of the independent cable tray crossbar, and the end of the positioning post is embedded into the inside of the positioning hole.

[0006] Furthermore, a top plate is arranged on the top of the independent cable tray crossbar. A lower hanging plate is integrally formed at the bottom end of the top plate, and a pull rod is screwed inside the lower hanging plate.

[0007] Furthermore, a cable tray support plate is integrally formed at the inner bottom end of the cable tray side plate, a clamping plate is provided at the edge of the top plate, the clamping plate presses on the surface of the cable tray support plate, and the side surface of the clamping plate abuts against the inner wall of the cable tray side plate.

[0008] Furthermore, a bottom plate is integrally formed at the outer bottom end of the lower hanging plate, the positioning post is welded to the side of the bottom plate, a hole is formed in the middle of the lower hanging plate, and a guide rod is inserted into the hole.

[0009] Furthermore, a spring is sleeved on the surface of the guide rod, and limiting convex rings are welded at both ends of the guide rod. Both ends of the spring are fixedly connected to the inner sides of the two lower hanging plates respectively. The top plate, the bottom plate and the pull rod are all installed symmetrically on both sides.

[0010] Furthermore, two positioning posts are provided on the side of each bottom plate, and the edge of the bottom plate abuts against the surface of the crossbar mounting frame.

[0011] Furthermore, the rolling support mechanism includes a rolling sleeve and a plug-in shaft. A first slot is formed in the inner side of the top plate, a second slot is formed in the inner side of the first slot, and an inclined plate is integrally formed on the inner side of the top plate. The bottom of the inclined plate is attached to the surface of the rolling sleeve.

[0012] Furthermore, the rolling sleeve is sleeved on the surface of the plug-in shaft. Both ends of the plug-in shaft are embedded in the second slot, and both ends of the rolling sleeve are inserted into the first slot.

[0013] Advantages of the present utility model:

[0014] The cable tray crossbar that is convenient to replace uses a crossbar mounting frame to install and support multiple independent cable tray crossbars, and each independent cable tray crossbar can be manually contracted through the elastic structure in the middle and the handle at the bottom, and then can be quickly pulled out downward from the bottom of the cable tray, reducing the difficulty of disassembly and installation, and the operation process is simple and convenient.

[0015] When a certain independent cable tray crossbar at any position of the cable tray crossbar that is convenient to replace is damaged or deformed and needs to be replaced, only this independent cable tray crossbar needs to be replaced, and there is no need to replace the entire crossbar structure. It is more simple and convenient to use, and the distance between each independent cable tray crossbar is adjustable, with higher flexibility, and the entire crossbar can also be quickly removed at the same time.

[0016] The cable tray crossbar that is convenient to replace is equipped with a rolling support mechanism at the top of each independent cable tray crossbar. Therefore, through this rolling support mechanism as the support area for the cables inside the cable tray, during the initial stage of cable laying and threading, the sliding friction of the cables can also be converted into rolling friction through this structure, reducing the resistance during the threading process. Brief Description of the Drawings

[0017] Figure 1 Structural schematic diagram of an easily replaceable crossbar of the utility model after installation;

[0018] Figure 2 End face sectional view of the crossbar of the utility model after installation;

[0019] Figure 3 Structural schematic diagram of the outer shape of the crossbar of the utility model;

[0020] Figure 4 is Figure 2 Enlarged view of area A in

[0021] In the figure: 1, crossbar mounting frame; 2, fixing rod; 3, positioning hole; 4, independent crossbar of the bridge; 5, rolling support mechanism; 6, top plate; 7, clamping plate; 8, lower hanging plate; 9, bottom plate; 10, positioning column; 11, pull rod; 12, spring; 13, guide rod; 14, bridge side plate; 15, bridge support plate; 16, rolling sleeve; 17, insertion shaft; 18, first slot; 19, second slot; 20, inclined plate; 21, limiting convex ring. Detailed Description of the Preferred Embodiments

[0022] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0023] Please refer to Figures 1 to 4 , the utility model provides the following technical solutions: An easily replaceable crossbar of the bridge, including an independent crossbar 4 of the bridge and a crossbar mounting frame 1. A rolling support mechanism 5 is inserted through the top of the independent crossbar 4 of the bridge. Fixed rods 2 are welded to the tops of both ends of the crossbar mounting frame 1. The inner sides of the fixed rods 2 are installed on the outer side of the bridge side plate 14 using bolts. A plurality of positioning holes 3 are opened inside the crossbar mounting frame 1, and the distance between each positioning hole 3 is the same. A positioning column 10 is welded to the outer side of the bottom of the independent crossbar 4 of the bridge, and the end of the positioning column 10 is embedded into the interior of the positioning hole 3. This easily replaceable crossbar of the bridge is installed at the bottom of the bridge side plate 14, used to provide support for the part of the cable passing through the bridge interior, and can directly replace each independent crossbar 4 of the bridge.

[0024] During the construction of the utility model, first, the crossbar mounting brackets 1 on both sides are partially installed and fixed by the fixing rods 2 relying on the outer bottom of the bridge side plates 14. Then, a plurality of independent bridge crossbars 4 are inserted into the inner sides of the crossbar mounting brackets 1 at one time. After the installation of each independent bridge crossbar 4 is completed, the cables to be carried can be inserted from one end of the bridge, and the cables are pulled to complete the threading process by the rolling support effect provided by each independent bridge crossbar 4. Subsequently, when any of the independent bridge crossbars 4 is damaged, the bottom pull rod 11 is directly pulled to contract the independent bridge crossbar 4, and then it can be directly pulled out downward from the bridge installation position for replacement.

[0025] In this embodiment, a top plate 6 is provided at the top of the independent bridge crossbar 4. A hanging plate 8 is integrally formed at the bottom end of the top plate 6, and a pull rod 11 is screwed inside the hanging plate 8. A bridge support plate 15 is integrally formed at the inner bottom end of the bridge side plate 14. A clamping plate 7 is provided at the edge of the top plate 6. The clamping plate 7 presses on the surface of the bridge support plate 15, and the side of the clamping plate 7 abuts against the inner wall of the bridge side plate 14. When any of the independent bridge crossbars 4 is damaged or deformed and needs to be replaced, only the damaged independent bridge crossbar 4 needs to be replaced, and there is no need to replace the entire crossbar structure. It is more simple and convenient to use, and the distance between each independent bridge crossbar 4 is adjustable, with higher flexibility, and the entire crossbar can also be quickly removed simultaneously.

[0026] Specifically, the top plate 6 of the independent bridge crossbar 4 is stuck on the bridge support plate 15. When the independent bridge crossbar 4 needs to be replaced, the bottom pull rod 11 is directly pulled to bring the top plates 6 on both sides closer. At this time, the spring 12 contracts, causing the clamping plates 7 on both sides of the top to move closer to the inside from the surface of the bridge support plate 15 and finally separate from the inside of the bridge support plate 15. Finally, the top plate 6 can be taken out downward from the inside of the bridge support plate 15.

[0027] In this embodiment, a bottom plate 9 is integrally formed at the outer bottom end of the hanging plate 8. The positioning column 10 is welded to the side of the bottom plate 9. A hole is formed in the middle of the hanging plate 8, and a guide rod 13 is inserted into the hole. A spring 12 is sleeved on the surface of the guide rod 13, and limiting convex rings 21 are welded to both ends of the guide rod 13. Both ends of the spring 12 are fixedly connected to the inner sides of the two hanging plates 8 respectively. The top plate 6, the bottom plate 9, and the pull rod 11 are all installed symmetrically on both sides. Two positioning columns 10 are provided on the side of each bottom plate 9, and the edge of the bottom plate 9 abuts against the surface of the crossbar mounting frame 1. By using the crossbar mounting frame 1 to install and support multiple independent bridge crossbars 4, and each independent bridge crossbar 4 can be manually contracted through the elastic structure in the middle and the handle at the bottom, and can be quickly pulled out from the bottom of the bridge, reducing the difficulty of disassembly and assembly, and the operation process is simple and convenient.

[0028] Specifically, the edge of each bottom plate 9 is inserted into the positioning hole 3 through the positioning column 10. After the insertion is completed, the crossbar mounting frame 1 can provide a positioning and supporting effect for the fixed position, so as to support the entire independent bridge crossbar 4 from both sides of the bottom plate 9, and cooperate with the supporting effect provided by the top plate 6 at the top, and finally can provide multiple supports for the entire independent bridge crossbar 4.

[0029] In this embodiment, the rolling support mechanism 5 includes a rolling sleeve 16 and a plug-in shaft 17. A first slot 18 is formed inside the top plate 6, a second slot 19 is formed inside the first slot 18, an inclined plate 20 is integrally formed inside the top plate 6, and the bottom of the inclined plate 20 is attached to the surface of the rolling sleeve 16. The rolling sleeve 16 is sleeved on the surface of the plug-in shaft 17, both ends of the plug-in shaft 17 are inserted into the second slot 19, and both ends of the rolling sleeve 16 are inserted into the first slot 18. The rolling support mechanism 5 is mounted on the top of each independent bridge crossbar 4. Therefore, through this rolling support mechanism 5 as the support area for the cables inside the bridge, during the initial stage of cable laying, the sliding friction of the cables can also be converted into rolling friction through this structure, reducing the resistance during the cable laying process. When the cable is passed through the inside of the bridge, it will be directly placed on the top of each rolling sleeve 16. At this time, pulling the cable can use the rotating effect provided by the rolling sleeve 16 to replace the sliding friction, reducing the resistance during the cable laying process. And when the independent bridge crossbar 4 is removed later, since both ends of the rolling sleeve 16 are inserted into the first slot 18, and the inner side of the top plate 6 directly presses on the top of the rolling sleeve 16 through the inclined plate 20, no matter whether the independent bridge crossbar 4 is contracted or expanded, the cable will not be squeezed, ensuring that the cable can flexibly move between the surfaces of the rolling sleeve 16 and the top plate 6.

[0030] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic features of the present utility model, the present utility model can be implemented in other specific forms.

[0031] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bridge crossbar that is easily replaceable, comprising an independent bridge crossbar (4) and a crossbar mounting frame (1), characterized in that: A rolling support mechanism (5) is inserted at the top of the independent bridge frame crossbar (4), and fixing rods (2) are welded at the tops of both ends of the crossbar mounting frame (1). The inner side of the fixing rod (2) is bolted to the outer side of the bridge frame side plate (14). A plurality of positioning holes (3) are opened on the inner side of the crossbar mounting frame (1), and the spacing between each positioning hole (3) is the same. A positioning column (10) is welded at the outer side of the bottom of the independent bridge frame crossbar (4), and the end of the positioning column (10) is embedded in the interior of the positioning hole (3).

2. The conveniently replaceable bridge crosspiece according to claim 1, characterized in that: A top plate (6) is arranged on the top of the independent bridge frame crosspiece (4), a lower hanging plate (8) is integrally formed at the bottom end of the top plate (6), and a pull rod (11) is screwed on the inner side of the lower hanging plate (8).

3. The conveniently replaceable bridge crosspiece according to claim 2, characterized in that: A bridge support plate (15) is integrally formed at the inner bottom end of the bridge side plate (14), and a clamping plate (7) is provided at the edge of the top plate (6), the clamping plate (7) is pressed against the surface of the bridge support plate (15), and the side surface of the clamping plate (7) is pressed against the inner wall of the bridge side plate (14).

4. The conveniently replaceable bridge crosspiece according to claim 2, characterized in that: A bottom plate (9) is integrally formed at the outer bottom end of the lower hanging plate (8), the positioning column (10) is welded to the side of the bottom plate (9), a hole is opened in the middle of the lower hanging plate (8), and a guide rod (13) is inserted into the interior of the hole.

5. The conveniently replaceable bridge crosspiece according to claim 4, characterized in that: The surface of the guide rod (13) is sleeved with a spring (12), and limiting convex rings (21) are welded to both ends of the guide rod (13). The two ends of the spring (12) are respectively fixedly connected to the inner sides of the two lower hanging plates (8). The top plate (6), the bottom plate (9) and the pull rod (11) are all symmetrically installed at the two side positions.

6. The conveniently replaceable bridge crosspiece according to claim 5, characterized in that: Two positioning columns (10) are provided on the side of each base plate (9), and the edge of the base plate (9) and the surface of the crossbar mounting frame (1) are in contact with each other.

7. The conveniently replaceable bridge crosspiece according to claim 6, characterized in that: The rolling support mechanism (5) comprises a rolling sleeve (16) and a plug-in shaft (17); a first slot (18) is provided on the inner side of the top plate (6); a second slot (19) is provided on the inner side of the first slot (18); an inclined plate (20) is integrally formed on the inner side of the top plate (6); and the bottom of the inclined plate (20) is in contact with the surface of the rolling sleeve (16).

8. The conveniently replaceable bridge crosspiece according to claim 7, characterized in that: The rolling sleeve (16) is sleeved on the surface of the plug-in shaft (17), the two ends of the plug-in shaft (17) are embedded in the second slot (19), and the two ends of the rolling sleeve (16) are inserted into the first slot (18).

Images