Dustproof cable bridge
By introducing large- and small-aperture dustproof plates and snap-fit components into cable trays, the contradiction between dust prevention and heat dissipation in cable trays has been resolved, improving both dust prevention and heat dissipation efficiency and simplifying maintenance operations.
Patent Information
- Application Number
- CN202520160307.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-23
AI Technical Summary
While existing cable trays maintain good heat dissipation, they lack sufficient dust protection, leading to dust accumulation and contamination of the cable insulation, increasing the risk of losses, and causing cable performance to decline in high-temperature environments.
The dustproof cable tray is designed with a combination of large-diameter and small-diameter dustproof plates and ventilation openings. The dustproof plates can be easily installed and removed through snap-fit components and push-block structure, ensuring air circulation and dust filtration.
It effectively prevents dust from entering, reduces cable loss and short-circuit risk, ensures rapid heat dissipation of the cable, extends its service life, and simplifies the maintenance process.
Smart Images

Figure CN223785699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable tray technology, and in particular to a dustproof cable tray. Background Technology
[0002] Cable trays are devices used to support, protect, and manage cables, and are widely used in construction, factories, data centers, and power engineering. Cable trays are typically made of metal, possessing good load-bearing capacity and durability, providing a stable path for cables and effectively protecting them from external environmental influences. Depending on the application, cable trays can be divided into various structural forms such as ladder type, tray type, and trough type, and can be installed inside or outside buildings along walls, floors, or ceilings, facilitating cable laying and maintenance.
[0003] Existing cable tray designs typically incorporate ventilation openings to allow airflow and facilitate rapid heat dissipation from the cables. However, this design also presents challenges in dust protection. Dust, debris, and other contaminants can easily enter the tray through these openings. Over time, dust accumulates on the cable surface, contaminating the external insulation and increasing the risk of cable loss. This can even lead to short circuits or other safety hazards. Furthermore, while eliminating ventilation openings can reduce dust ingress, it hinders effective heat dissipation within the tray. Cables operating in high-temperature environments are prone to performance degradation and accelerated aging. Utility Model Content
[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.
[0005] In view of the problems existing in the above and / or prior art, the present invention is proposed.
[0006] Therefore, the technical problem to be solved by this utility model is how to improve the dustproof performance of the cable tray while maintaining good heat dissipation, which is a technical problem that urgently needs to be solved in the design of cable trays.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a dustproof cable tray, including a tray base and a cover plate, the cover plate being movably installed on the top of the tray base, ventilation openings being symmetrically opened on the left and right sides of the tray base, and through grooves being opened on the inner sides of both sets of ventilation openings, mounting frames being provided inside the two through grooves, and dustproof plates being provided inside the two mounting frames, and telescopic grooves being symmetrically opened on the left and right sides of the inner bottom wall of the tray base, and the two telescopic grooves being connected to the two through grooves respectively, and snap-fit components being provided in the two telescopic grooves, and the two mounting frames being limited and fixed in the two through grooves by the snap-fit components.
[0008] In a preferred embodiment of the dustproof cable tray of this utility model, the bottom of the mounting frame is provided with a slot, and the slot and the telescopic groove are on the same horizontal plane. The snap-fit assembly includes a movable plate slidably connected in the telescopic groove. One end of the movable plate is fixedly connected to a snap plate, and the other end of the snap plate passes through the telescopic groove and extends into the through groove, and is inserted into the slot. The other end of the movable plate is fixedly connected to a telescopic spring, and the other end of the telescopic spring is fixedly connected to the inner wall of the telescopic groove.
[0009] In a preferred embodiment of the dustproof cable tray of this utility model, the bottom end of the telescopic groove is provided with a movable groove, the bottom end of the movable plate is fixedly installed with a push block, and the bottom end of the push block passes through the movable groove and extends to the outside of the cable tray.
[0010] In a preferred embodiment of the dustproof cable tray of this utility model, one end of the card plate inserted into the card slot is configured as an arc surface structure, and a slanted groove is provided in the middle of the top of the mounting frame, and the slanted groove is located directly above the card plate.
[0011] In a preferred embodiment of the dustproof cable tray of this utility model, a handle is fixedly installed at the bottom of the mounting frame, and the handle is located outside the cable tray.
[0012] As a preferred embodiment of the dustproof cable tray of this utility model, there are two dustproof plates: one is a large-diameter dustproof plate and the other is a small-diameter dustproof plate. The two dustproof plates are respectively installed at the left and right ends of the mounting frame, and the outer surfaces of the two dustproof plates are parallel and attached to the outer wall of the mounting frame.
[0013] The beneficial effects of this utility model are:
[0014] (1) In terms of dust prevention and heat dissipation, this utility model effectively blocks dust and debris from entering the cable tray by setting large-diameter and small-diameter dustproof plates, preventing contamination of the cable's external insulation layer and reducing cable loss and short-circuit risk. At the same time, the design of the ventilation openings ensures good air circulation while maintaining dust prevention, ensuring that the cable can dissipate heat quickly, avoiding performance degradation and aging problems caused by high temperature, and extending the cable's service life.
[0015] (2) Regarding ease of disassembly, this utility model adopts a push block, snap-fit assembly, and handle design, making the installation and disassembly of the dustproof panel simpler and faster. Workers only need to move the push block to release the limiting fixation of the dustproof panel, making it easy to remove for cleaning and maintenance. The entire process requires no complicated tools, is highly efficient, and greatly saves maintenance time and labor costs. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0017] Figure 1 This is a perspective view of the overall structure of this utility model;
[0018] Figure 2 This is a front sectional view of the present invention;
[0019] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;
[0020] Figure 4 This is a perspective view of the mounting frame of this utility model;
[0021] Figure 5 This is a perspective orthographic view of the connection between the bridge base and the snap-fit assembly of this utility model;
[0022] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure at point B. Detailed Implementation
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0026] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0027] Example
[0028] Reference Figures 1-6 This embodiment provides a dustproof cable tray, including a cable tray 1 and a cover plate 2, wherein the cover plate 2 is movably installed on the top of the cable tray 1 to cover and protect the top of the cable tray 1, effectively preventing external dust and foreign objects from entering the interior of the cable tray 1 from the top.
[0029] The cable tray 1 has symmetrical ventilation openings 101 on its left and right sides for heat dissipation and air circulation inside the cable tray, preventing the performance of the cables from deteriorating under high-temperature conditions. To improve the dustproof performance of the ventilation openings 101, through grooves 102 are provided on their inner sides. The through grooves 102 are the receiving space for the mounting frame 3, which facilitates the fixing of the dustproof components into the ventilation openings of the cable tray 1, preventing dust and debris from directly entering the cable tray 1.
[0030] The function of the mounting frame 3 is to support the dustproof plate 4 and to filter dust and debris through the dustproof plate 4. The mounting frame 3 has two dustproof plates 4 inside: one with a large pore size and the other with a small pore size, installed at the left and right ends of the mounting frame 3 respectively. This is used to classify and filter dust particles of different sizes, improving filtration efficiency. The outer surfaces of the two dustproof plates 4 are parallel and fitted to the outer wall of the mounting frame 3. This fitting design ensures that the mounting frame 3, when inserted into the through slot 102, avoids the clamping plate 502 from bouncing or getting stuck due to unevenness of the outer wall, ensuring a smooth installation process.
[0031] The bottom wall of the bridge base 1 has symmetrically arranged telescopic grooves 103 on both sides, which are connected to the through groove 102 to accommodate the snap-fit assembly 5. The snap-fit assembly 5 includes a movable plate 501, a snap-fit plate 502, and a telescopic spring 503. The movable plate 501 is slidably connected in the telescopic groove 103, with the snap-fit plate 502 fixedly connected to one end, and the other end fixedly connected to the inner wall of the telescopic groove 103 via the telescopic spring 503. The other end of the snap-fit plate 502 passes through the telescopic groove 103 and extends into the through groove 102, cooperating with the snap-fit groove 301 at the bottom of the mounting frame 3 to limit and fix the mounting frame 3. The end of the snap-fit plate 502 that is inserted into the snap-fit groove 301 is designed with an arc surface structure, which can provide a smooth guiding effect during the insertion of the mounting frame 3.
[0032] The bottom end of the telescopic groove 103 is provided with a movable groove 104. The movable groove 104 allows the push block 504, which is fixedly installed at the bottom end of the movable plate 501, to pass through the outside of the bridge seat 1, so that the staff can control the movement of the card plate 502 by moving the push block 504, thereby realizing the disassembly and assembly of the dustproof plate 4.
[0033] To facilitate the operation and disassembly of the mounting frame 3, a handle 6 is fixedly installed at the bottom of the mounting frame 3. The handle 6 is located on the outside of the bridge seat 1, making it convenient for workers to grasp the mounting frame 3 for disassembly and cleaning. A sloping groove 302 is opened in the middle of the top of the mounting frame 3. The sloping groove 302 is located directly above the clamping plate 502. Its sloping surface is designed to compress the clamping plate 502 during the insertion of the mounting frame 3, pushing it to retract into the telescopic groove 103. At the same time, the rebound force of the telescopic spring 503 realizes the automatic limiting and fixing of the mounting frame 3.
[0034] The disassembly process of dustproof plate 4 is as follows: When the operator moves the push block 504, the push block 504 drives the moving plate 501 to slide into the telescopic groove 103, and at the same time drives the locking plate 502 to disengage from the locking slot 301. When the push block 504 moves to the end of the movable groove 104, the locking plate 502 is completely removed from the locking slot 301. At this time, the fixing between the mounting frame 3 and the through groove 102 is released. The operator can then easily pull the mounting frame 3 and dustproof plate 4 out of the through groove 102 by grasping the handle 6, and clean the dustproof plate 4.
[0035] When installing the cleaned dustproof plate 4, the operator needs to align the mounting frame 3 with the through groove 102, ensuring that the inclined groove 302 at the top of the mounting frame 3 faces the end of the clamping plate 502. During insertion, the tip of the inclined groove 302 at the top of the mounting frame 3 passes through the gap between the clamping plate 502 and the inner wall of the through groove 102, pushing the clamping plate 502 into the telescopic groove 103 and compressing the telescopic spring 503. When the top wall of the mounting frame 3 contacts the inner top wall of the through groove 102, the clamping groove 301 and the telescopic groove 103 are on the same horizontal plane. The rebound force of the telescopic spring 503 pushes the clamping end of the clamping plate 502 into the clamping groove 301, completing the limiting and fixing of the mounting frame 3.
[0036] In summary, this embodiment achieves the dual functions of dust prevention and ventilation through the reasonable design of the bridge base, through groove, mounting frame, dustproof plate and snap-fit components. Furthermore, the design of the push block and handle significantly improves the ease of installation and disassembly of the dustproof plate. It features simple structure, convenient use and efficient maintenance.
[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0038] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0039] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A dustproof cable tray, characterized in that: The bridge base (1) and cover plate (2) are included. The cover plate (2) is movably installed on the top of the bridge base (1). Ventilation openings (101) are symmetrically provided on the left and right sides of the bridge base (1). Through grooves (102) are provided on the inner side of the two sets of ventilation openings (101). Mounting frames (3) are provided inside the two through grooves (102). Dustproof plates (4) are provided inside the two mounting frames (3). Expansion grooves (103) are symmetrically provided on the left and right sides of the bottom wall of the bridge base (1). The two expansion grooves (103) are respectively connected to the two through grooves (102). Snap-fit components (5) are provided in the two expansion grooves (103). The two mounting frames (3) are limited and fixed in the two through grooves (102) by the snap-fit components (5).
2. The dustproof cable tray according to claim 1, characterized in that: The bottom of the mounting frame (3) is provided with a slot (301), and the slot (301) and the telescopic groove (103) are on the same horizontal plane. The snap-fit assembly (5) includes a movable plate (501) slidably connected in the telescopic groove (103). One end of the movable plate (501) is fixedly connected to a card plate (502). The other end of the card plate (502) passes through the telescopic groove (103) and extends into the through groove (102), and is inserted into the slot (301). The other end of the movable plate (501) is fixedly connected to a telescopic spring (503), and the other end of the telescopic spring (503) is fixedly connected to the inner wall of the telescopic groove (103).
3. The dustproof cable tray according to claim 2, characterized in that: The bottom end of the telescopic groove (103) is provided with a movable groove (104), and the bottom end of the movable plate (501) is fixedly installed with a push block (504), and the bottom end of the push block (504) passes through the movable groove (104) and extends to the outside of the bridge seat (1).
4. The dustproof cable tray according to claim 3, characterized in that: The end of the card plate (502) inserted into the card slot (301) is set with an arc surface structure. The top of the mounting frame (3) has a slanted groove (302) in the middle, and the slanted groove (302) is located directly above the card plate (502).
5. The dustproof cable tray according to claim 4, characterized in that: A handle (6) is fixedly installed at the bottom of the mounting frame (3), and the handle (6) is located outside the bridge seat (1).
6. The dustproof cable tray according to claim 5, characterized in that: Two dustproof plates (4) are provided, one is a large-aperture dustproof plate and the other is a small-aperture dustproof plate. The two dustproof plates (4) are respectively installed at the left and right ends of the mounting frame (3), and the outer surfaces of the two dustproof plates (4) are parallel and attached to the outer wall of the mounting frame (3).