Adjustable angle bridge bend assembly

Abstract

The application relates to the technical field of bridge elbow assemblies, in particular to an angle-adjustable bridge elbow assembly, which comprises a first corrosion-resistant rectangular frame, the top of the first corrosion-resistant rectangular frame is provided with a connecting clamping groove, a second corrosion-resistant rectangular frame is clamped in the connecting clamping groove, the connecting clamping groove and the two sides of the second corrosion-resistant rectangular frame are connected through connecting rotating shafts, the inner side surface of the first corrosion-resistant rectangular frame and the bottom surface of the second corrosion-resistant rectangular frame are simultaneously provided with connecting ear seats, connecting rings are hinged on the connecting ear seats, connecting rods are connected on the connecting rings, and the ends of the two groups of connecting rods are connected through a connecting rotating rod; the angle-adjustable bridge elbow assembly has the beneficial effects that the second corrosion-resistant rectangular frame is clamped in the connecting clamping groove arranged at the top of the first corrosion-resistant rectangular frame, the first corrosion-resistant rectangular frame and the second corrosion-resistant rectangular frame are connected through the connecting rotating shafts, and a bridge elbow is formed.

Description

Technical Field

[0001] This invention relates to the field of cable tray elbow assembly technology, specifically to an adjustable-angle cable tray elbow assembly. Background Technology

[0002] With the development of intelligent buildings, a single building often contains AC high-voltage systems, low-voltage systems, DC high-voltage systems, and various automation systems, such as building automation systems, office automation systems, and communication automation systems. Therefore, it is necessary to lay various types of cables simultaneously, including AC high-voltage cables, DC high-voltage cables, and low-voltage cables such as communication cables and control cables. These different types of cables need to be laid separately during the wiring design, hence the widespread use of cable trays for cable routing.

[0003] However, most existing cable tray elbows are designed with a fixed angle, which cannot be adjusted according to actual installation needs. For example, some cable tray elbows have a fixed bending angle determined during manufacturing and cannot be modified during installation. This means that elbows need to be customized or replaced when facing different installation scenarios. Moreover, because the angle is fixed, the angle needs to be accurately measured and preset during installation. Once a deviation occurs, the elbow needs to be readjusted or replaced. This fixed design not only increases the difficulty of installation but also reduces installation efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable-angle cable tray elbow assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a first corrosion-resistant rectangular frame, the top of which is provided with a connecting slot, a second corrosion-resistant rectangular frame is held in the connecting slot, the connecting slot and the two sides of the second corrosion-resistant rectangular frame are connected by connecting shafts, the inner surface of the first corrosion-resistant rectangular frame and the bottom surface of the second corrosion-resistant rectangular frame are provided with connecting lugs, connecting rings are hinged on the connecting lugs, connecting rods are connected to the connecting rings, and the ends of the two sets of connecting rods are connected by connecting shafts.

[0006] Preferably, the first corrosion-resistant rectangular frame is provided with connecting ear plates on both sides, and the upper and lower ends of the connecting ear plates are provided with through holes. By driving fixing bolts into the through holes, the first corrosion-resistant rectangular frame can be installed on the wall.

[0007] Preferably, the connecting shaft is disposed on both sides of the first corrosion-resistant rectangular frame and the second corrosion-resistant rectangular frame, connecting the first corrosion-resistant rectangular frame and the second corrosion-resistant rectangular frame. The second corrosion-resistant rectangular frame can swing through the connecting shaft. A connecting groove is provided at the bottom of the rear end of the second corrosion-resistant rectangular frame, which allows the interior of the first corrosion-resistant rectangular frame and the second corrosion-resistant rectangular frame to communicate.

[0008] Preferably, the connecting rod has first threads at both ends, the first threads at both ends of the connecting rod are opposite, the connecting rod has second threads, the connecting rod is inserted into the connecting rod, and the connecting rod and the connecting rod are connected by threads.

[0009] Preferably, the first corrosion-resistant rectangular frame has a second sealing cover at the inner opening of the second corrosion-resistant rectangular frame, and the second corrosion-resistant rectangular frame has a first sealing cover at the inner opening of the first corrosion-resistant rectangular frame. The first sealing cover is held in the second sealing cover, and the outer surface of the first sealing cover is in close contact with the inner surface of the second sealing cover. The first sealing cover and the second sealing cover can seal the opening at the inner connection between the first corrosion-resistant rectangular frame and the second corrosion-resistant rectangular frame.

[0010] Preferably, an inclined support plate is provided inside the first corrosion-resistant rectangular frame at the bottom of the second corrosion-resistant rectangular frame, and a baffle is provided on the top of one side of the inclined support plate at its higher position. A telescopic groove is provided in the middle of the baffle, and a telescopic baffle is elastically connected in the telescopic groove. The top of the telescopic baffle is in close contact with the bottom surface of the rear end of the second corrosion-resistant rectangular frame.

[0011] Preferably, a spring is provided in the telescopic groove in the middle of the baffle. The bottom of the spring is connected to the bottom inner wall of the telescopic groove, and the top of the spring is connected to the telescopic baffle. The telescopic baffle can drive the spring to extend and retract.

[0012] Preferably, the first corrosion-resistant rectangular frame has drainage holes on both sides of the bottom end of the inclined support plate, so that rainwater can be discharged through the drainage holes on both sides of the first corrosion-resistant rectangular frame along the slope of the inclined support plate.

[0013] Preferably, the first corrosion-resistant rectangular frame is provided with inclined sealing strips on both sides of the connecting slot. The sealing strips are provided on both sides of the first corrosion-resistant rectangular frame and the connecting slot. The inner side of the sealing strip is in close contact with the two side surfaces of the second corrosion-resistant rectangular frame to seal the connection between the first corrosion-resistant rectangular frame and the two side surfaces of the connecting slot. The lower end of the sealing strip extends to the upper middle part of the inclined receiving plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The adjustable-angle cable tray elbow assembly proposed in this invention features a second corrosion-resistant rectangular frame held in a connecting slot at the top of a first corrosion-resistant rectangular frame. A connecting shaft connects the first and second corrosion-resistant rectangular frames to form a cable tray elbow. When adjusting the angle between the first corrosion-resistant rectangular frame and the connecting slot, rotating the connecting rod causes it to engage with the first thread on the connecting rod via opposite threads on both sides. This drives the connecting rod to push the first and second corrosion-resistant rectangular frames, causing them to swing through the connecting shaft. The first and second corrosion-resistant rectangular frames open, widening the angle between them. At this time, the first sealing cover plate at the bottom opening of the second corrosion-resistant rectangular frame opens by one end within the second sealing cover plate, closing the bottom opening at the connection point of the first and second corrosion-resistant rectangular frames without affecting their normal opening.

[0016] When the elbow formed by the first and second corrosion-resistant rectangular frames is installed on the wall, in rainy weather, the sealing strips on both sides of the connecting groove of the first and second corrosion-resistant rectangular frames begin to seal the connection points, preventing rainwater from seeping into the interior of the first frame and corroding the cables. Simultaneously, rainwater flows down the slope of the sealing strip onto the surface of the inclined support plate. At the rear end of the connection between the first and second corrosion-resistant rectangular frames, the inclined support plate collects the seeping rainwater, which then flows out through the drainage holes on both sides of the lower part of the first frame. To prevent rainwater from falling into the first corrosion-resistant rectangular frame, a baffle is installed at the top of the inclined support plate to block rainwater splashing onto the inclined support plate. Furthermore, a spring in the telescopic groove in the middle of the baffle allows the top of the telescopic baffle to fit tightly against the bottom surface of the second corrosion-resistant rectangular frame. When the angle of the second corrosion-resistant rectangular frame is adjusted, the bottom surface of the second corrosion-resistant rectangular frame can squeeze the telescopic baffle, causing the telescopic baffle to compress the spring and retract a certain distance into the telescopic groove. This ensures that the telescopic baffle fits tightly against the bottom surface of the second corrosion-resistant rectangular frame without obstructing the normal swing of the second corrosion-resistant rectangular frame. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the elbow of the present invention after installation;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the elbow of the present invention;

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the first corrosion-resistant rectangular frame of the present invention;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the second corrosion-resistant rectangular frame of the present invention.

[0022] In the figure: 1. First corrosion-resistant rectangular frame; 2. Connecting slot; 3. Second corrosion-resistant rectangular frame; 4. Connecting shaft; 5. Connecting through groove; 6. Connecting ear plate; 7. Fixing bolt; 8. Connecting ear seat; 9. Connecting rod; 10. Connecting rotating rod; 11. First thread; 12. Second thread; 13. First sealing cover plate; 14. Second sealing cover plate; 15. Inclined receiving plate; 16. Baffle; 17. Telescopic groove; 18. Spring; 19. Telescopic baffle; 20. Leakage hole; 21. Sealing strip; 22. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention 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 the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1 to 5 The present invention provides a technical solution: a first corrosion-resistant rectangular frame 1, a connecting slot 2 is provided on the top of the first corrosion-resistant rectangular frame 1, a second corrosion-resistant rectangular frame 3 is held in the connecting slot 2, the connecting slot 2 and the two sides of the second corrosion-resistant rectangular frame 3 are connected by a connecting shaft 4, a connecting lug 8 is provided on the inner surface of the first corrosion-resistant rectangular frame 1 and the bottom surface of the second corrosion-resistant rectangular frame 3, a connecting ring 9 is hinged on the connecting lug 8, a connecting rod 10 is connected to the connecting ring 9, and the ends of the two sets of connecting rods 10 are connected by a connecting rotating rod 11; by rotating the connecting rod 10, the connecting rod 10 is driven to push the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3 through the first thread 12 with opposite threads on both sides.

[0025] The first corrosion-resistant rectangular frame 1 has connecting lugs 6 on both sides, and through holes are provided at the top and bottom ends of the connecting lugs 6. By inserting fixing bolts 7 into the through holes, the first corrosion-resistant rectangular frame 1 can be installed on the wall. The connecting shaft 4 is provided on both sides of the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3, connecting the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3. The second corrosion-resistant rectangular frame 3 can swing through the connecting shaft 4. A connecting through groove 5 is provided at the bottom of the rear end of the second corrosion-resistant rectangular frame 3, which connects the interior of the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3. The connecting rod 11 has first threads 12 at both ends, and the first threads 12 at both ends of the connecting rod 11 are opposite. The connecting rod 10 has second threads 13, and the connecting rod 10 is inserted into the connecting rod 11. The connecting rod 10 and the connecting rotating rod 11 are connected by threads; a second sealing cover plate 15 is provided at the inner opening of the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3, and a first sealing cover plate 14 is provided at the inner opening of the second corrosion-resistant rectangular frame 3 and the first corrosion-resistant rectangular frame 1. The first sealing cover plate 14 is held in the second sealing cover plate 15, and the outer surface of the first sealing cover plate 14 is in close contact with the inner surface of the second sealing cover plate 15. The first sealing cover plate 14 and the second sealing cover plate 15 can seal the opening at the inner connection between the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3; the first sealing cover plate 14 and the second sealing cover plate 15 seal the bottom opening at the connection between the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3, without affecting the normal opening of the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3.

[0026] An inclined support plate 16 is provided inside the first corrosion-resistant rectangular frame 1 at the bottom of the second corrosion-resistant rectangular frame 3. A baffle 17 is provided on the top of one side of the inclined support plate 16 at its highest point. A telescopic groove 18 is provided in the middle of the baffle 17. A telescopic baffle 20 is elastically connected in the telescopic groove 18. The top of the telescopic baffle 20 is in close contact with the bottom surface of the rear end of the second corrosion-resistant rectangular frame 3. A spring 19 is provided in the telescopic groove 18 in the middle of the baffle 17. The bottom of the spring 19 is connected to the bottom inner wall of the telescopic groove 18, and the top of the spring 19 is connected to the telescopic baffle 20. The telescopic baffle 20 can drive the spring 19 to extend and retract. The spring 19 in the telescopic groove 18 in the middle of the baffle 17 can make the top of the telescopic baffle 20 in close contact with the bottom surface of the second corrosion-resistant rectangular frame 3.

[0027] The first corrosion-resistant rectangular frame 1 has drainage holes 21 on both sides of the bottom end of the inclined receiving plate 16, allowing rainwater to drain out along the slope of the inclined receiving plate 16 through the drainage holes 21 on both sides of the first corrosion-resistant rectangular frame 1. The first corrosion-resistant rectangular frame 1 has inclined sealing strips 22 on both sides of the connecting slot 2. The sealing strips 22 are located on both sides of the first corrosion-resistant rectangular frame 1 and the connecting slot 2. The inner side of the sealing strips 22 is in close contact with the two side surfaces of the second corrosion-resistant rectangular frame 3, sealing the connection between the first corrosion-resistant rectangular frame 1 and the two side surfaces of the connecting slot 2. The lower end of the sealing strips 22 extends to the upper middle part of the inclined receiving plate 16. The telescopic baffle 20 is compressed by the spring 19 and retracts to a certain distance in the telescopic groove 18, so that the telescopic baffle 20 is in close contact with the bottom surface of the second corrosion-resistant rectangular frame 3 without obstructing the normal swing of the second corrosion-resistant rectangular frame 3.

[0028] In actual use, the second corrosion-resistant rectangular frame 3 is held in the connecting slot 2 provided at the top of the first corrosion-resistant rectangular frame 1. The connecting shaft 4 connects the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3 to form a cable tray elbow. When adjusting the angle between the first corrosion-resistant rectangular frame 1 and the connecting slot 2, the connecting rod 10 is rotated so that the connecting rod 10 engages with the first thread 13 on the connecting rod 10 through the first thread 12 with opposite threads on both sides. This drives the connecting rod 10 to push the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3 together, allowing the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3 to communicate. By swinging the connecting shaft 4, the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3 open, widening the angle between them. At this time, the first sealing cover 14 set at the bottom opening of the second corrosion-resistant rectangular frame 3 opens one end of the second sealing cover 15, so that the first sealing cover 14 and the second sealing cover 15 close the bottom opening at the connection between the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3, without affecting the normal opening of the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3.

[0029] When the elbow formed by the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3 is installed on the wall, in rainy weather, the sealing strips 22 on both sides of the connecting groove 2 of the first corrosion-resistant rectangular frame 1 begin to seal the connection points of the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3, preventing rainwater from seeping into the interior of the first corrosion-resistant rectangular frame 1 and corroding the cables. At the same time, the rainwater falls along the slope of the sealing strips 22 onto the surface of the inclined receiving plate 16. At the rear end of the connection between the first corrosion-resistant rectangular frame 1 and the second corrosion-resistant rectangular frame 3, the inclined receiving plate 16 will collect the seeping rainwater and allow it to flow out through the drainage holes 21 on both sides of the lower part of the first corrosion-resistant rectangular frame 1, preventing rainwater from falling into the lower part of the wall. The first corrosion-resistant rectangular frame 1 is inserted into the first frame 1. The baffle 17 is located at the top of the inclined support plate 16 and can block rainwater splashing onto the inclined support plate 16. Furthermore, the spring 19 in the telescopic groove 18 in the middle of the baffle 17 can make the top of the telescopic baffle 20 fit tightly against the bottom surface of the second corrosion-resistant rectangular frame 3. When the second corrosion-resistant rectangular frame 3 is angled, the bottom surface of the second corrosion-resistant rectangular frame 3 can squeeze the telescopic baffle 20, causing the telescopic baffle 20 to squeeze the spring 19 and retract to a certain distance in the telescopic groove 18. This allows the telescopic baffle 20 to fit tightly against the bottom surface of the second corrosion-resistant rectangular frame 3 without obstructing the normal swing of the second corrosion-resistant rectangular frame 3.

[0030] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. An adjustable-angle cable tray elbow assembly, characterized in that: include: A first corrosion-resistant rectangular frame (1) is provided with a connecting slot (2) at the top. A second corrosion-resistant rectangular frame (3) is held in the connecting slot (2). The connecting slot (2) and the two sides of the second corrosion-resistant rectangular frame (3) are connected by a connecting shaft (4). A connecting ear seat (8) is provided on the inner surface of the first corrosion-resistant rectangular frame (1) and the bottom surface of the second corrosion-resistant rectangular frame (3). A connecting ring (9) is hinged on the connecting ear seat (8). A connecting rod (10) is connected on the connecting ring (9). The ends of the two sets of connecting rods (10) are connected by a connecting rod (11). An inclined support plate (16) is provided inside the first corrosion-resistant rectangular frame (1) at the bottom of the second corrosion-resistant rectangular frame (3). A baffle (17) is provided on the top of one side of the inclined support plate (16) at a high position. A telescopic groove (18) is provided in the middle of the baffle (17). A telescopic baffle (20) is elastically connected in the telescopic groove (18). The top of the telescopic baffle (20) is in close contact with the bottom surface of the rear end of the second corrosion-resistant rectangular frame (3). A spring (19) is provided in the telescopic groove (18) in the middle of the baffle (17). The bottom of the spring (19) is connected to the bottom inner wall of the telescopic groove (18), and the top of the spring (19) is connected to the telescopic baffle (20). The telescopic baffle (20) can drive the spring (19) to extend and retract. The first corrosion-resistant rectangular frame (1) has drainage holes (21) on both sides of the bottom end of the inclined support plate (16), so that rainwater can be discharged through the drainage holes (21) on both sides of the first corrosion-resistant rectangular frame (1) along the slope of the inclined support plate (16).

2. The adjustable angle cable tray elbow assembly according to claim 1, characterized in that: The first corrosion-resistant rectangular frame (1) is provided with connecting ear plates (6) on both sides. The upper and lower ends of the connecting ear plates (6) are provided with through holes. By driving fixing bolts (7) into the through holes, the first corrosion-resistant rectangular frame (1) can be installed on the wall.

3. The adjustable-angle cable tray elbow assembly according to claim 2, characterized in that: The connecting shaft (4) is set on both sides of the first corrosion-resistant rectangular frame (1) and the second corrosion-resistant rectangular frame (3), connecting the first corrosion-resistant rectangular frame (1) and the second corrosion-resistant rectangular frame (3). The second corrosion-resistant rectangular frame (3) can swing through the connecting shaft (4). A connecting groove (5) is provided at the bottom of the rear end of the second corrosion-resistant rectangular frame (3), which connects the interior of the first corrosion-resistant rectangular frame (1) and the second corrosion-resistant rectangular frame (3).

4. The adjustable angle cable tray elbow assembly according to claim 3, characterized in that: The connecting rod (11) has a first thread (12) at both ends. The first threads (12) at both ends of the connecting rod (11) are opposite. The connecting rod (10) has a second thread (13). The connecting rod (10) is inserted into the connecting rod (11). The connecting rod (10) and the connecting rod (11) are connected by threads.

5. The adjustable-angle cable tray elbow assembly according to claim 4, characterized in that: The first corrosion-resistant rectangular frame (1) is provided with a second sealing cover plate (15) at the inner opening of the second corrosion-resistant rectangular frame (3), and the second corrosion-resistant rectangular frame (3) is provided with a first sealing cover plate (14) at the inner opening of the first corrosion-resistant rectangular frame (1). The first sealing cover plate (14) is held in the second sealing cover plate (15). The outer surface of the first sealing cover plate (14) is in close contact with the inner surface of the second sealing cover plate (15). The first sealing cover plate (14) and the second sealing cover plate (15) can seal the opening at the inner connection between the first corrosion-resistant rectangular frame (1) and the second corrosion-resistant rectangular frame (3).

6. The adjustable-angle cable tray elbow assembly according to claim 5, characterized in that: The first corrosion-resistant rectangular frame (1) has inclined sealing strips (22) on both sides of the connecting slot (2). The sealing strips (22) are set on both sides of the first corrosion-resistant rectangular frame (1) and the connecting slot (2). The inner side of the sealing strip (22) is in close contact with the two sides of the second corrosion-resistant rectangular frame (3) to seal the connection between the first corrosion-resistant rectangular frame (1) and the two sides of the connecting slot (2). The lower end of the sealing strip (22) extends to the upper middle part of the inclined receiving plate (16).

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