Combined ladder type cable bridge

Abstract

The utility model relates to the technical field of cable bridges, and discloses a combined ladder type cable bridge which comprises a bridge structure, a rotating structure is arranged on one side of the bridge structure, the rotating structure comprises a rotating seat and a fixed seat, a worm shaft is rotatably installed in the rotating seat, a worm wheel is fixedly installed on the fixed seat through a rotating shaft, and the worm wheel is fixedly installed on the rotating shaft. A worm gear is arranged in the rotating structure, the worm gear is meshed with the worm shaft, one end of the rotating shaft is rotatably provided with a first roller through the interior of a fixing frame, and a limiting structure is arranged in the bridge structure. The worm shaft in the rotating structure drives the worm gear to rotate, the worm gear drives the rotating shaft to rotate, and the rotating shaft drives the first roller to rotate through the fixing frame; when the cable is pulled, the cable rolls on the first roller, and due to the rotation of the first roller, the friction force between the cable and the surface of the cross beam in the pulling process is greatly reduced, so that the abrasion of the cable is reduced, the force required for pulling the cable is also reduced, and the cable can move more smoothly in the wiring process.

Description

Technical Field

[0001] The utility model relates to the technical field of cable bridges, in particular to a combined ladder-type cable bridge. Background Art

[0002] The types of cable trays can be roughly divided into trough type, tray type, ladder type, grid type and other structures. The most common in life is the trough type cable tray, which is composed of structures such as brackets, supports and installation accessories. The cable tray can be erected independently in the building or on various buildings and pipe gallery brackets. The characteristics of the cable tray are its simple structure, beautiful appearance, flexible configuration and easy maintenance.

[0003] After searching, the applicant found that a Chinese patent disclosed "a combined ladder-type cable tray", and its publication (announcement) number is "CN217334899U". This patent mainly assembles and fixes the ladder-type beam and the No. 1 bridge frame and the No. 2 bridge frame by putting the docking grooves at both ends of the ladder-type beam on the outside of the No. 1 docking block. After the ladder-type beam is installed, the fixing columns at both ends of the bottom are inserted into the fixing holes, which can improve the structural stability of the ladder-type beam. However, the cable is in direct contact with the beam during the wiring process, which will increase the force required to pull the cable, increase the difficulty and time of manual operation, and reduce the wiring efficiency. The direct friction between the cable and the beam will cause serious wear of the cable and reduce the service life of the cable. For this reason, we propose a combined ladder-type cable tray. Utility Model Content

[0004] The purpose of the present utility model is to provide a combined ladder-type cable tray to solve the problem proposed in the above-mentioned background technology that the cables are in direct contact with the beams during the wiring process, which increases the force required to pull the cables, increases the difficulty and time of manual operation, reduces the wiring efficiency, and the direct friction between the cables and the beams causes severe cable wear and reduces the service life of the cables.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combined ladder-type cable tray, comprising a bridge structure, a rotating structure is provided on one side of the bridge structure, the rotating structure comprises a rotating seat and a fixed seat, a worm shaft is rotatably installed in the rotating seat, a worm wheel is fixedly installed on the fixed seat through a rotating shaft, the worm wheel and the worm shaft are meshed with each other, a first roller is rotatably installed on one end of the rotating shaft through the inside of the fixed frame, and a limiting structure is provided inside the bridge structure.

[0006] As a preferred solution, the bridge structure includes a first frame and a second frame, and the inner top ends of the first frame and the second frame are fixedly installed with a docking block. A crossbeam is provided between the first frame and the second frame, and through grooves that cooperate with the docking block are provided at both ends of the crossbeam. The first frame and the second frame are connected by a clip through the docking block and the crossbeam.

[0007] As a preferred solution, the rotating seat and the fixed seat are respectively fixedly mounted on the first frame or the second frame, the rotating shaft is rotatably mounted on the fixed seat, the worm gear is fixedly mounted on the rotating shaft, the fixed frame is fixedly mounted on one end of the rotating shaft, and the first roller is rotatably mounted inside the fixed frame.

[0008] As a preferred solution, the limiting structure includes a guide rod, a first spring and a support frame, the guide rod is slidably set on the cross beam, the support frame is fixedly installed on the top end of the guide rod, the first spring is sleeved on the guide rod, the top end of the first spring is fixedly connected to the support frame, and the bottom end of the first spring is fixedly connected to the cross beam.

[0009] As a preferred solution, cavities are respectively provided on both sides of the support frame, a slider is slidingly provided in the cavity of the support frame, a second spring is fixedly installed at the bottom end of the slider, the second spring is fixedly connected to the top wall of the support frame, and a second roller is rotatably installed between the sliders.

[0010] As a preferred solution, a connecting plate is fixedly installed at one end of the slider away from the second roller, a pull rod is slidably provided on the connecting plate, a clamping block is fixedly installed at one end of the pull rod, a third spring is sleeved on the pull rod, one end of the third spring is fixedly connected to the clamping block, the other end of the third spring is fixedly connected to the connecting plate, an ear plate is fixedly installed on the top end of the connecting plate, a screw is threadedly installed on the ear plate, and a limiting hole matching the screw is opened on the pull rod.

[0011] Technical effects and advantages of this utility model:

[0012] 1. The worm shaft in the rotating structure drives the worm wheel to rotate, the worm wheel drives the rotating shaft to rotate, and the rotating shaft drives the first roller to rotate through the fixed frame. When the cable is pulled, the cable rolls on the first roller. Due to the rotation of the first roller, the friction between the cable and the surface of the beam is greatly reduced during the pulling process, which not only reduces the wear of the cable, but also reduces the force required to pull the cable. The cable can move more smoothly during the wiring process, reducing the difficulty and time of manual operation and improving the efficiency of cable wiring.

[0013] 2. Through the second roller on the support frame in the setting limit structure, the cable passes through the second roller, pressing the second roller and the second spring, and the second roller is buffered by the second spring, and the support frame is buffered by the first spring. When the cable passes through the second roller, the second spring provides a buffering effect, which reduces the direct impact force between the cable and the roller, reduces the possibility of cable surface wear, and extends the service life of the cable. After the cable is arranged, the cable is clamped by the clamping block. The clamping block can firmly fix the cable on the bridge to prevent the cable from moving due to external force or vibration after arrangement, ensuring that the cable maintains a stable position in the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the bridge structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the rotating structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the limiting structure of the utility model;

[0018] Figure 5 This is one of the schematic diagrams of the limiting structure of the utility model.

[0019] Figure 6 This is the second schematic diagram of the limiting structure of the present utility model.

[0020] In the figure: 1. Bridge structure; 11. First frame; 12. Second frame; 13. Docking block; 14. Crossbeam; 2. Rotating structure; 21. Rotating seat; 22. Fixed seat; 23. Worm shaft; 24. Rotating shaft; 25. Worm gear; 26. Fixed frame; 27. First roller; 3. Limiting structure; 301. Guide rod; 302. First spring; 303. Support frame; 304. Slider; 305. Second spring; 306. Second roller; 307. Connecting plate; 308. Pull rod; 309. Third spring; 310. Clamping block; 311. Ear plate; 312. Screw; 313. Limiting hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1:

[0023] Please see the attached Figure 1 - Attachment Figure 3, a combined ladder-type cable bridge comprises a bridge structure 1, the bridge structure 1 comprises a first frame 11 and a second frame 12, the first frame 11 and the second frame 12 are arranged opposite to each other, and a docking block 13 is fixedly installed on the internal top end of the first frame 11 and the second frame 12, a crossbeam 14 is provided between the first frame 11 and the second frame 12, and through grooves are provided at both ends of the crossbeam 14 that cooperate with the docking block 13, and the first frame 11 and the second frame 12 are connected by the docking block 13 and the crossbeam 14. A rotating structure 2 is provided on one side of the bridge structure 1, and the rotating structure 2 comprises a rotating seat 21 and a fixed seat 22, and the rotating seat 21 and the fixed seat 22 are respectively fixedly mounted on the first frame 11 and the second frame 12, a worm shaft 23 is rotatably mounted in the rotating seat 21, a rotating shaft 24 is rotatably mounted on the fixed seat 22, a worm gear 25 is fixedly mounted on the rotating shaft 24, and the worm gear 25 and the worm shaft 23 are meshed with each other, and a fixing frame 26 is fixedly mounted on one end of the rotating shaft 24, and a first roller 27 is rotatably mounted inside the fixing frame 26.

[0024] Specifically, the rotating structure 2 is utilized, and the worm shaft 23 drives the worm wheel 25 to rotate, which in turn causes the rotating shaft 24 to drive the first roller 27 on the fixed frame 26 to rotate. When the cable is pulled, the cable rolls on the first roller 27, which greatly reduces the friction with the surface of the beam 14, reduces cable wear and also reduces the pulling force, which makes the cable move more smoothly during the wiring process, reduces the difficulty and time of manual operation, and improves the efficiency of cable wiring.

[0025] Example 2:

[0026] Please see the attached Figure 4 - Attachment Figure 6A limiting structure 3 is provided inside the bridge structure 1. The limiting structure 3 includes a guide rod 301, a first spring 302 and a support frame 303. The guide rod 301 is slidably provided on the crossbeam 14. The support frame 303 is fixedly installed on the top of the guide rod 301. The first spring 302 is sleeved on the guide rod 301. The top of the first spring 302 is fixedly connected to the support frame 303. The bottom end of the first spring 302 is fixedly connected to the crossbeam 14. Cavities are respectively provided on both sides of the support frame 303. A slider 304 is slidably provided in the cavity of the support frame 303. The bottom end of the slider 304 is fixedly installed with a second spring 305. The second spring 305 is fixed to the top wall of the support frame 303. A second roller 306 is rotatably installed between the sliders 304, and a connecting plate 307 is fixedly installed on one end of the slider 304 away from the second roller 306. A pull rod 308 is slidably provided on the connecting plate 307, and a clamping block 310 is fixedly installed on one end of the pull rod 308. A third spring 309 is sleeved on the pull rod 308, and one end of the third spring 309 is fixedly connected to the clamping block 310, and the other end of the third spring 309 is fixedly connected to the connecting plate 307. An ear plate 311 is fixedly installed on the top of the connecting plate 307, and a screw 312 is threadedly installed on the ear plate 311. A limiting hole 313 matching the screw 312 is opened on the pull rod 308.

[0027] Specifically, in the limiting structure 3, the second roller 306 on the support frame 303 is pressed when the cable passes through, and the second spring 305 and the first spring 302 cushion the second roller 306 and the support frame 303 respectively, which reduces the direct impact force between the cable and the roller, reduces the possibility of cable surface wear, and extends its service life. After the cable is arranged, the clamping block 310 can firmly clamp the cable to prevent it from moving due to external force or vibration, thereby ensuring that the cable is stable in position in the bridge.

[0028] When the cable tray is in the first and second positions, the first and second frames 11 and 12 are fixed together, and the first and second frames 11 and 12 are assembled. When the worker wants to install the cables in the first and second frames 11 and 12, the pull rod 308 is pulled to align the limiting hole 313 with the screw rod 312, and the screw rod 312 is rotated to move the screw rod 312 downward, and the screw rod 312 is extended into the limiting hole 313, so that the screw rod 312 limits the pull rod 308, and at the same time compresses the third spring 309, placing the cable on the first roller 27, and then pulling the cable. The cable passes through the second roller 306. When the cable passes through the first roller 27 and the second roller 306 respectively, it can assist in cable dragging. When different cables need to be dragged, the worm shaft 23 is rotated, and the worm shaft 23 is rotated on the rotating seat 21 rotates, because of the meshing relationship between the worm shaft 23 and the worm wheel 25, the worm shaft 23 drives the worm wheel 25 to rotate, and the worm wheel 25 drives the rotating shaft 24 to rotate, and the rotating shaft 24 drives the fixing frame 26 to rotate, and the fixing frame 26 drives the first roller 27 to rotate around the rotating shaft 24, thereby adjusting the first roller 27 to different angles, making it convenient for cables of different sizes to roll on the first roller 27. When the cable passes over the second roller 306, it compresses the second roller 306, and the second roller 306 compresses the second spring 305 through the slider 304, and the second roller 306 is buffered by compressing the second spring 305. When the cable pressure is greater than the elastic force of the second spring 305, the entire support frame 303 is driven to slide down, so that the support frame 303 drives the guide rod 301 to slide on the beam 14 while compressing the first spring 302, and the support frame 303 is further buffered by the first spring 302.

[0029] When the cable is fully pulled, rotate the screw 312, and the screw 312 moves in the ear plate 311 through rotation, so that the screw 312 disengages from the limiting hole 313. When the screw 312 disengages from the limiting hole 313, the limit of the pull rod 308 is released, and the pull rod 308 drives the clamping block 310 to clamp the cable under the elastic force of the third spring 309, so that the cable is fixed after being pulled.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A combined ladder-type cable tray, comprising a cable tray structure (1), characterized in that: A rotating structure (2) is provided on one side of the bridge structure (1), and the rotating structure (2) includes a rotating seat (21) and a fixed seat (22). A worm shaft (23) is rotatably mounted in the rotating seat (21), and a worm wheel (25) is fixedly mounted on the fixed seat (22) via a rotating shaft (24). The worm wheel (25) and the worm shaft (23) are meshed with each other. A first roller (27) is rotatably mounted on one end of the rotating shaft (24) via a fixed seat (26). A limiting structure (3) is provided inside the bridge structure (1).

2. The combined ladder-type cable tray according to claim 1, characterized in that: The bridge structure (1) comprises a first frame (11) and a second frame (12); a docking block (13) is fixedly installed at the inner top end of the first frame (11) and the second frame (12); a crossbeam (14) is provided between the first frame (11) and the second frame (12); through grooves that cooperate with the docking block (13) are provided at both ends of the crossbeam (14); the first frame (11) and the second frame (12) are connected by snapping together through the docking block (13) and the crossbeam (14).

3. The combined ladder-type cable tray according to claim 1, characterized in that: The rotating seat (21) and the fixed seat (22) are respectively fixedly mounted on the first frame (11) or the second frame (12); the rotating shaft (24) is rotatably mounted on the fixed seat (22); the worm gear (25) is fixedly mounted on the rotating shaft (24); the fixed frame (26) is fixedly mounted on one end of the rotating shaft (24); and the first roller (27) is rotatably mounted inside the fixed frame (26).

4. The combined ladder-type cable tray according to claim 1, characterized in that: The limiting structure (3) comprises a guide rod (301), a first spring (302) and a support frame (303); the guide rod (301) is slidably arranged on the crossbeam (14); the support frame (303) is fixedly mounted on the top end of the guide rod (301); the first spring (302) is sleeved on the guide rod (301); the top end of the first spring (302) is fixedly connected to the support frame (303); and the bottom end of the first spring (302) is fixedly connected to the crossbeam (14).

5. The combined ladder-type cable tray according to claim 4, characterized in that: Cavities are respectively provided on both sides of the support frame (303), a slider (304) is slidably provided in the cavity of the support frame (303), a second spring (305) is fixedly installed at the bottom end of the slider (304), the second spring (305) is fixedly connected to the top wall of the support frame (303), and a second roller (306) is rotatably installed between the sliders (304).

6. The combined ladder-type cable tray according to claim 5, characterized in that: A connecting plate (307) is fixedly installed at one end of the slider (304) away from the second roller (306), a pull rod (308) is slidably provided on the connecting plate (307), a clamping block (310) is fixedly installed at one end of the pull rod (308), a third spring (309) is sleeved on the pull rod (308), one end of the third spring (309) is fixedly connected to the clamping block (310), the other end of the third spring (309) is fixedly connected to the connecting plate (307), an ear plate (311) is fixedly installed at the top end of the connecting plate (307), a screw (312) is threadedly installed on the ear plate (311), and a limiting hole (313) that matches the screw (312) is opened on the pull rod (308).

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