Groove type cable bridge with telescopic function

Abstract

The utility model relates to the technical field of groove-type cable bridges, and discloses a groove-type cable bridge with a telescopic function, which comprises a first bridge, a second bridge and a telescopic structure, the second bridge is slidably mounted in the first bridge through the telescopic structure, a limit structure is arranged at the top end of the first bridge, and the telescopic structure is arranged at the top end of the second bridge. According to the utility model, in the arranged limiting structure, after the second bridge stretches out and draws back in the first bridge, the handle drives the limiting rod to be in contact with the limiting frame on the second bridge, the pointer on the limiting rod points to the graduated scale, and the limiting rod is fixed through the screw rod, so that the stretching-out and drawing-back distance of the second bridge is calculated; the telescopic length of the second bridge can be visually and accurately displayed, a user can rapidly know the adjusting state of the bridge conveniently, errors are avoided, the user can record and refer to the specific telescopic length through visual display of the pointer and the graduated scale, follow-up repeated adjustment to the same position is facilitated, and operation consistency is improved.

Description

Technical Field

[0001] This utility model relates to the field of trough-type cable tray technology, and in particular to a trough-type cable tray with telescopic function. Background Technology

[0002] Cable trays are classified into trough type, tray type, ladder type, and mesh type structures. They consist of supports, brackets, and installation accessories. Cable trays inside buildings can be installed independently or laid on various building and pipe rack supports. They should be characterized by simple structure, beautiful appearance, flexible configuration, and convenient maintenance. All parts must be galvanized. Cable trays installed outdoors are also available.

[0003] The applicant discovered through a search that a Chinese patent discloses "A trough-type cable tray with telescopic function," with publication (announcement) number "CN218732953U." This patent mainly uses a telescopic component. By turning a knob, a rotating rod drives a gear to rotate, and a toothed plate allows the inner cable tray to slide on the outer cable tray, which can be adjusted to a suitable length. It has the advantages of being able to change the length and facilitating installation by workers. However, the telescopic distance directly affects the docking and positioning of the cable tray. This device cannot calculate the telescopic distance of the second cable tray, lacking accurate distance data, which may lead to errors in the cable tray position, affecting the overall installation effect. It is also impossible to record or refer to the telescopic data, making it difficult to repeat precise adjustments during subsequent maintenance or adjustment, reducing consistency. Therefore, we propose a trough-type cable tray with telescopic function. Utility Model Content

[0004] The purpose of this utility model is to provide a trough-type cable tray with telescopic function to solve the problems mentioned in the background art, such as the inability to calculate the telescopic distance of the second cable tray, the lack of accurate distance data, which may lead to cable tray position errors, affect the overall installation effect, the inability to record or refer to telescopic data, the difficulty in repeating accurate adjustments during subsequent maintenance or adjustment, and the reduction of consistency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a trough-type cable tray with telescopic function, comprising a first cable tray, a second cable tray, and a telescopic structure. The second cable tray is slidably installed inside the first cable tray via the telescopic structure. A limiting structure is provided at the top of the first cable tray. The limiting structure includes a second sliding groove, a scale, and a limiting rod. The limiting rod is slidably connected to the second sliding groove via a slider. The limiting rod has an installation handle and a screw. Pointers are fixedly installed at both ends of the limiting rod. A limiting frame is fixedly installed at one end of the second cable tray.

[0006] As a preferred embodiment, the telescopic structure includes a first sliding groove and a limiting groove. The first sliding groove is formed on the inner bottom end of the first cable tray, and the limiting groove is formed on the side wall of the first cable tray. A slide rail is fixedly installed at the bottom end of the second cable tray, and the slide rail extends into the first sliding groove and is slidably connected to the first sliding groove.

[0007] As a preferred embodiment, a rack is fixedly installed on the side wall of the second cable tray near the end of the limiting groove. The rack extends into the limiting groove and is slidably connected to the limiting groove. A bearing seat is fixedly installed on the end of the first cable tray near the rack. A rotating shaft is rotatably installed on the bearing seat. A gear is fixedly installed at the bottom end of the rotating shaft. The gear meshes with the rack.

[0008] As a preferred embodiment, a fixing seat is fixedly installed on the side wall of the first bridge frame and at the bottom end of the bearing seat. A pull rod is slidably installed on the fixing seat. A limiting block is fixedly installed at the top end of the pull rod. A limiting hole matching the limiting block is provided at the bottom end of the gear. A spring is sleeved on the pull rod. One end of the spring is fixedly connected to the fixing seat, and the other end of the spring is fixedly connected to the limiting block.

[0009] As a preferred embodiment, the second slide groove is formed at both ends of the outer side wall of the first cable tray, the scale is fixedly installed at both ends of the side wall of the first cable tray, and the scale is at the bottom of the second slide groove. The lengths of the second slide groove, the scale, and the limiting groove are equal.

[0010] As a preferred embodiment, the slider is fixedly installed at both ends of the limiting rod, the slider extends into the second sliding groove, the handle is fixedly installed at the top of the limiting rod, the screw is threadedly installed on both sides of the top of the limiting rod, and the tops of both sides of the limiting frame are flush with the limiting rod.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. Through the set limit structure, when the second cable tray extends or retracts in the first cable tray, the handle drives the limit rod to contact the limit frame on the second cable tray. The pointer on the limit rod points to the scale. The limit rod is fixed by the screw, thereby calculating the extension or retraction distance of the second cable tray. The extension or retraction length of the second cable tray can be displayed intuitively and accurately, which makes it convenient for users to quickly understand the adjustment status of the cable tray and avoid errors. The intuitive display of the pointer and scale allows users to record and refer to the specific extension or retraction length, which is convenient for subsequent repeated adjustments to the same position and improves the consistency of operation. Through distance display and convenient limit operation, the measurement and adjustment time is reduced and the overall installation and maintenance efficiency is improved.

[0013] 2. The gear drives the rack to move, causing the second cable tray to extend and retract within the first cable tray. After extension and retraction, the limiting hole on the gear aligns with the limiting block on the pull rod. When the pull rod is released, the limiting block automatically extends into the limiting hole under the spring force, thus limiting the gear. No manual operation is required, allowing for quick and reliable gear locking and preventing accidental sliding or positional displacement of the second cable tray. Once the limiting block is fully embedded in the limiting hole, the structure is stable and not easily loosened or detached, ensuring the cable tray remains stable after extension and retraction. The gear drive makes the movement smoother and allows for control of the second cable tray's position, which can also be adjusted in complex wiring environments. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the first cable tray of this utility model;

[0016] Figure 3 This is a schematic diagram of the second cable tray of this utility model;

[0017] Figure 4 This is a side view of the telescopic structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the telescopic structure of this utility model;

[0019] Figure 6 This is a cross-sectional schematic diagram of the limiting structure of this utility model.

[0020] In the diagram: 1. First cable tray; 2. Second cable tray; 3. Telescopic structure; 301. First slide groove; 302. Limiting groove; 303. Slide rail; 304. Rack; 305. Bearing seat; 306. Rotating shaft; 307. Gear; 308. Fixed seat; 309. Pull rod; 310. Spring; 311. Limiting block; 312. Limiting hole; 4. Limiting structure; 41. Second slide groove; 42. Scale; 43. Limiting rod; 44. Slider; 45. Handle; 46. Screw; 47. Pointer; 48. Limiting bracket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0022] Please see the appendix Figure 1 - Appendix Figure 5 A telescopic cable tray includes a first cable tray 1, a second cable tray 2, and a telescopic structure 3. The second cable tray 2 is slidably installed inside the first cable tray 1 via the telescopic structure 3. A limiting structure 4 is provided at the top of the first cable tray 1. The telescopic structure 3 includes a first sliding groove 301 and a limiting groove 302. The first sliding groove 301 is formed on the bottom inner end of the first cable tray 1, and the limiting groove 302 is formed on the side wall of the first cable tray 1. A slide rail 303 is fixedly installed at the bottom end of the second cable tray 2, extending into the first sliding groove 301 and slidably connected to it. A rack 304 is fixedly installed on the side wall of the second cable tray 2 near the limiting groove 302, extending into the limiting groove 302. The rack 304 is slidably connected to the limiting groove 302. A bearing seat 305 is fixedly installed at one end of the first bridge frame 1 near the rack 304. A rotating shaft 306 is rotatably installed on the bearing seat 305. A gear 307 is fixedly installed at the bottom end of the rotating shaft 306. The gear 307 meshes with the rack 304. A fixing seat 308 is fixedly installed on the side wall of the first bridge frame 1 at the bottom end of the bearing seat 305. A pull rod 309 is slidably installed on the fixing seat 308. A limiting block 311 is fixedly installed at the top end of the pull rod 309. A limiting hole 312 matching the limiting block 311 is provided at the bottom end of the gear 307. A spring 310 is sleeved on the pull rod 309. One end of the spring 310 is fixedly connected to the fixing seat 308, and the other end of the spring 310 is fixedly connected to the limiting block 311.

[0023] Specifically, the second cable tray 2 is extended and retracted by the gear 307 driving the rack 304. After the extension and retraction are completed, the limiting hole 312 and the limiting block 311 are automatically aligned. When the pull rod 309 is released, the limiting block 311 is embedded in the limiting hole 312 under the action of the spring 310. The gear 307 is locked quickly without manual operation to prevent slippage or displacement. The gear 307 drives smoothly and can accurately control the position of the second cable tray 2, adapting to complex wiring environments. Example 2

[0024] Please see the appendix Figure 1 , Figure 2 and attached Figure 6The limiting structure 4 includes a second slide groove 41, a scale 42, and a limiting rod 43. The second slide groove 41 is formed at both ends of the outer side wall of the first cable tray 1. The scale 42 is fixedly installed at both ends of the side wall of the first cable tray 1 and is located at the bottom of the second slide groove 41. The lengths of the second slide groove 41, the scale 42, and the limiting groove 302 are equal. The two ends of the limiting rod 43 are fixedly installed with sliders 44, which extend into the second slide groove 41. The limiting rod 43 is slidably connected to the second slide groove 41 through the sliders 44. The top of the limiting rod 43 is fixedly installed with a handle 45. The top two sides of the top of the limiting rod 43 are threaded with screws 46. The two ends of the limiting rod 43 are fixedly installed with pointers 47. The second cable tray 2 is fixedly installed with a limiting frame 48 inside the first cable tray 1. The top two sides of the limiting frame 48 are flush with the limiting rod 43.

[0025] Specifically, by setting a limiting structure 4, the handle 45 drives the limiting rod 43 to contact the limiting frame 48 of the second cable tray 2. The pointer 47 corresponds to the scale 42 to display the telescopic distance, and the limiting rod 43 is fixed by the screw 46. This design is intuitive and displays the telescopic length of the second cable tray 2, which is convenient for recording and reference. It is also convenient to repeatedly adjust to the same position in the future. The distance display and limiting operation are simple, reducing measurement and adjustment time and improving installation and maintenance efficiency.

[0026] Working principle of this utility model: This utility model is a trough-type cable tray with telescopic function. When the second cable tray 2 needs to be telescopic, the pull rod 309 is pulled, which drives the limiting block 311 to move. At the same time, the spring 310 is compressed, causing the limiting block 311 to disengage from the limiting hole 312. The rotating shaft 306 is rotated, which drives the gear 307 to rotate. Because the gear 307 is meshed with the rack 304, the gear 307 drives the rack 304 to move. The rack 304 drives the second cable tray 2 to slide in the first cable tray 1. When the second cable tray 2 slides to the required position, the limiting hole 312 on the gear 307 is aligned with the limiting block 311. At this time, the pull rod 309 is released, and the pull rod 309 automatically resets under the elastic force of the spring 310, so that the limiting block 311 extends into the limiting hole 312, thereby limiting the gear 307 and preventing the gear 307 from rotating.

[0027] When the pointer 47 of the limiting rod 43 points to the "0" mark on the scale 42, and the handle 45 is pulled, the handle 45 causes the slider 44 to slide in the second slide groove 41 through the limiting rod 43, thereby moving the limiting rod 43. When the limiting rod 43 contacts the limiting frame 48 on the second cable tray 2, the limiting frame 48 is limited by the limiting rod 43. Rotating the screw 46 causes the screw 46 to move threadedly on the limiting rod 43, so that the end of the screw 46 contacts the top of the first cable tray 1, thereby limiting and fixing the limiting rod 43. The pointer 47 on the limiting rod 43 will point to the scale 42. Reading the scale on the scale 42 makes it easy to know the length adjusted by the limiting rod 43, and then calculate the extension distance of the second cable tray 2.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A trough-type cable tray with telescopic function, characterized in that: The cable tray includes a first cable tray (1), a second cable tray (2), and a telescopic structure (3). The second cable tray (2) is slidably installed inside the first cable tray (1) through the telescopic structure (3). A limiting structure (4) is provided at the top of the first cable tray (1). The limiting structure (4) includes a second slide groove (41), a scale (42), and a limiting rod (43). The limiting rod (43) is slidably connected to the second slide groove (41) through a slider (44). The limiting rod (43) has an installation handle (45) and a screw (46). A pointer (47) is fixedly installed at both ends of the limiting rod (43). A limiting bracket (48) is fixedly installed at one end of the second cable tray (2).

2. The trough-type cable tray with telescopic function according to claim 1, characterized in that: The telescopic structure (3) includes a first slide groove (301) and a limiting groove (302). The first slide groove (301) is opened on the inner bottom end of the first cable tray (1), and the limiting groove (302) is opened on the side wall of the first cable tray (1). The bottom end of the second cable tray (2) is fixedly installed with a slide rail (303). The slide rail (303) extends into the first slide groove (301) and is slidably connected to the first slide groove (301).

3. The telescopic cable tray according to claim 2, characterized in that: A rack (304) is fixedly installed on one end of the side wall of the second bridge (2) near the limiting groove (302). The rack (304) extends into the limiting groove (302) and is slidably connected to the limiting groove (302). A bearing seat (305) is fixedly installed on one end of the first bridge (1) near the rack (304). A rotating shaft (306) is rotatably installed on the bearing seat (305). A gear (307) is fixedly installed at the bottom end of the rotating shaft (306). The gear (307) meshes with the rack (304).

4. The telescopic cable tray according to claim 3, characterized in that: A fixing seat (308) is fixedly installed on the side wall of the first bridge frame (1) and at the bottom end of the bearing seat (305). A pull rod (309) is slidably installed on the fixing seat (308). A limiting block (311) is fixedly installed at the top end of the pull rod (309). A limiting hole (312) matching the limiting block (311) is provided at the bottom end of the gear (307). A spring (310) is sleeved on the pull rod (309). One end of the spring (310) is fixedly connected to the fixing seat (308), and the other end of the spring (310) is fixedly connected to the limiting block (311).

5. The trough-type cable tray with telescopic function according to claim 1, characterized in that: The second slide groove (41) is formed at both ends of the outer side wall of the first cable tray (1), and the scale (42) is fixedly installed at both ends of the side wall of the first cable tray (1). The scale (42) is at the bottom end of the second slide groove (41). The lengths of the second slide groove (41), the scale (42) and the limiting groove (302) are equal.

6. The telescopic cable tray according to claim 5, characterized in that: The slider (44) is fixedly installed at both ends of the limiting rod (43). The slider (44) extends into the second slide groove (41). The handle (45) is fixedly installed at the top of the limiting rod (43). The screw (46) is threadedly installed on both sides of the top of the limiting rod (43). The tops of both sides of the limiting frame (48) are flush with the limiting rod (43).

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