Common cable trough made of SMC (Sheet Molding Compound) composite material
The U-shaped channel made of SMC composite material is integrally molded with the fixing parts, which solves the problem of on-site drilling during cable trough installation, achieves rapid fixing and waterproofing, and improves the stability of the cable trough and the service life of the cable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-13
AI Technical Summary
The existing cable troughs require on-site drilling for fixing during installation, which prolongs the installation time and makes it easy for rainwater to enter and affect the cable life.
The U-shaped channel is made of SMC composite material, and the fasteners are integrally formed with the channel. They can be directly fixed to the cable through the mounting holes of the fasteners, avoiding on-site drilling. Reinforcing ribs and sealing strips are designed on the channel to enhance stability and sealing.
It enables rapid installation without the need for on-site drilling, improves installation efficiency and the stability of the cable tray, prevents rainwater from entering, and extends the service life of the cable.
Smart Images

Figure CN223993530U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical equipment technology, specifically to a general-purpose cable trough made of SMC composite material. Background Technology
[0002] In the power and telecommunications industries, the laying and protection of cables are crucial. SMC cable troughs, as a new type of cable laying device, are gradually gaining widespread application. SMC is an unsaturated polyester resin material with excellent electrical, mechanical, and corrosion resistance properties. SMC cable troughs are manufactured using a molding process, offering advantages such as high dimensional accuracy, good structural strength, and light weight. They effectively protect cables from external mechanical damage, chemical corrosion, and electromagnetic interference.
[0003] Existing cable troughs typically use a U-shaped design. Cables on railways and outdoor walls / railings are often secured inside these troughs by drilling holes and using wire to hold them in place. However, in practice, this not only prolongs installation time by drilling holes on-site, but also allows rainwater to easily enter the cable trough through the holes, impacting cable lifespan. Utility Model Content
[0004] This invention proposes a general-purpose cable trough made of SMC composite material, which solves the problem of cable troughs being difficult to fix in related technologies.
[0005] The technical solution of this utility model is as follows:
[0006] A general-purpose cable trough made of SMC composite material, comprising:
[0007] The U-shaped trough has a bottom edge and two side edges, which are located on opposite sides of the bottom edge. The bottom edge and the two side edges form a holding space for holding cables.
[0008] A plurality of fasteners are provided on the side away from the bottom edge of the side edge. The vertical distance between the fastener and the bottom edge is not greater than the maximum vertical distance between the side edge and the bottom edge. The fastener has a first mounting hole for fasteners to pass through. The U-shaped groove is integrally formed with the fastener.
[0009] As a further technical solution, the fixing members on the two sides are symmetrically distributed relative to the center line of the bottom edge, and further include:
[0010] The reinforcing ribs are provided in a plurality of form, and all of the reinforcing ribs are disposed on the outside of the U-shaped groove. The two ends of the reinforcing ribs are respectively connected to two mutually symmetrical fasteners.
[0011] As a further technical solution, the side of the bottom edge away from the holding space is an arc-shaped surface, which is used to guide the liquid on the bottom edge to the side.
[0012] As a further technical solution, it also includes:
[0013] The first connecting part is disposed at one end of the U-shaped groove;
[0014] The second connecting part is disposed at the other end of the U-shaped groove, and the first connecting part is used to engage with the second connecting part on the adjacent U-shaped groove.
[0015] As a further technical solution, the first connecting part has a second mounting hole, the second connecting part has a third mounting hole, and after the first connecting part is fastened to the second connecting part of the adjacent U-shaped groove, the axis of the second mounting hole coincides with the axis of the third mounting hole.
[0016] As a further technical solution, after the first connecting part and the second connecting part are fastened together, the first connecting part is located above the second connecting part, and the system further includes:
[0017] A sealing strip is disposed on the second connecting part, and the sealing strip is used to seal the gap between the first connecting part and the second connecting part.
[0018] As a further technical solution, the second connecting part has a platform, the second mounting hole is located on the platform, and the upper surface of the platform is perpendicular to the axis of the second mounting hole.
[0019] As a further technical solution, the upper surface of the platform is inclined, and the upper surface of the platform is used to guide the liquid on the upper surface of the platform away from the platform.
[0020] The working principle and beneficial effects of this utility model are as follows:
[0021] In this invention, a U-shaped trough is attached to the cable, and the holding space, along with the ground or railing, covers the cable, thus protecting it. After attaching the U-shaped trough to the cable, there is no need to drill holes in the cable trough on-site. The cable trough can be directly fixed in the desired position using fasteners through the first mounting hole on the fixing component, greatly saving installation time and avoiding the problem of rainwater entering the cable trough during rainy days and affecting the cable's lifespan due to on-site drilling.
[0022] The one-piece molding design makes the cable trough structure more stable, reducing the risk of loosening and damage that may occur due to additional installation fasteners. The fasteners solve the problem of cable troughs being difficult to secure, improving installation efficiency and convenience. It avoids the drawbacks of on-site drilling, effectively protecting the cable's operating environment and extending its service life. Attached Figure Description
[0023] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.
[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;
[0025] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0026] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model;
[0027] Figure 4 This is a top view of embodiment three of the present utility model;
[0028] Figure 5 This utility model Figure 4 Sectional view along the BB direction;
[0029] Figure 6 This utility model Figure 5 Enlarged structural diagram at point C.
[0030] In the diagram: 100, U-shaped channel; 110, bottom edge; 120, side edge; 130, holding space; 140, fastener; 141, first mounting hole; 150, reinforcing rib; 111, arc-shaped surface; 160, first connecting part; 170, second connecting part; 161, second mounting hole; 171, third mounting hole; 200, sealing strip; 162, platform. Detailed Implementation
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0032] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0033] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0035] Example 1
[0036] Reference Figures 1-2 This is the first embodiment of the present invention, which proposes a general-purpose cable trough made of SMC composite material, including a U-shaped trough 100. The U-shaped trough 100 has a bottom edge 110 and two sides 120, which are located on opposite sides of the bottom edge 110. The bottom edge 110 and the two sides 120 form a holding space 130 for holding cables. Several fasteners 140 are provided on the side of the side 120 away from the bottom edge 110. The vertical distance between the fasteners 140 and the bottom edge 110 is not greater than the maximum vertical distance between the side 120 and the bottom edge 110. The fasteners 140 have a first mounting hole 141 for fasteners to pass through. The U-shaped trough 100 and the fasteners 140 are integrally formed.
[0037] In this embodiment, the U-shaped channel 100 is made of SMC composite material molded into a plate shape, and then bent into the shape of the U-shaped channel 100 through a bending process. During the molding stage, the mold has a position for the fixing member 140. After molding, the U-shaped channel 100 can be formed by bending directly. The vertical distance between the fixing member 140 and the bottom edge 110 is not greater than the maximum vertical distance between the side edge 120 and the bottom edge 110. The fixing member 140 is located between the end of the side edge 120 that contacts the bottom edge 110 and the end that is away from the bottom edge 110. The position of the fixing member 140 can ensure that the end of the side edge that is away from the bottom edge 110 is always in contact with the ground or railing, ensuring the stability and airtightness of the U-shaped channel 100.
[0038] In practical applications, the U-shaped trough 100 is attached to the cable, and the holding space 130 covers the cable with the ground or railing, thus protecting it. After attaching the U-shaped trough 100 to the cable, there is no need to drill holes in the cable trough on-site. The cable trough can be fixed in the required position directly through the first mounting hole 141 on the fixing member 140 using fasteners, which greatly saves installation time and avoids the problem of rainwater entering the cable trough during rainy days and affecting the cable's lifespan due to on-site drilling.
[0039] The one-piece molding design makes the cable trough structure more stable, reducing the risk of loosening and damage that may occur due to the additional installation of the fastener 140. The fastener 140 solves the problem of cable troughs being difficult to secure, improving installation efficiency and convenience. It avoids the drawbacks of on-site drilling, effectively protecting the cable's operating environment and extending its service life.
[0040] The implementation methods include, but are not limited to, fixing the U-shaped groove 100 to the ground or railing by passing rivets through the first mounting hole 141, fixing it to the ground or railing by passing wire through the first mounting hole 141, machining threads at the first mounting hole 141, and fixing the U-shaped groove 100 with bolts and nuts. The specific fixing method can be flexibly selected according to the specific site conditions.
[0041] Furthermore, the fasteners 140 on the two sides 120 are symmetrically distributed relative to the center line of the bottom side 110, and also include reinforcing ribs 150. There are several reinforcing ribs 150, and all of the reinforcing ribs 150 are arranged on the outside of the U-shaped groove 100. The two ends of the reinforcing ribs 150 are respectively connected to two mutually symmetrical fasteners 140.
[0042] In this embodiment, the symmetrical distribution of the fasteners 140 makes the cable trough more evenly stressed and more stable during fixing. The reinforcing ribs 150 enhance the structural strength of the cable trough, improving its load-bearing capacity and resistance to deformation.
[0043] The symmetrical distribution of the fasteners 140 ensures the balance and stability of the cable trough installation, reducing displacement or damage caused by uneven stress. The reinforcing ribs 150 connect with the symmetrically distributed fasteners 140, forming a robust structural frame and further enhancing the overall strength of the cable trough. This improves the reliability of the cable trough in different operating environments and extends its service life.
[0044] Furthermore, the side of the bottom edge 110 away from the holding space 130 is an arc-shaped surface 111, which is used to guide the liquid on the bottom edge 110 to the side edge 120.
[0045] In this embodiment, the U-shaped trough 100 protects the cable by fastening it to the cable, and the arc-shaped surface 111 is located at the top of the U-shaped trough 100. The arc-shaped surface 111 can prevent rainwater or other liquids from accumulating at the top of the U-shaped trough 100.
[0046] The curved surface 111 design helps to quickly drain the liquid from the top of the U-shaped tank 100, thus extending the service life of the U-shaped tank 100.
[0047] Example 2
[0048] Reference Figure 3 This is the second embodiment of the present invention. Compared with the first embodiment, it further includes a first connecting part 160, which is disposed at one end of the U-shaped groove 100; and a second connecting part 170 is disposed at the other end of the U-shaped groove 100. The first connecting part 160 is used to fasten with the second connecting part 170 on the adjacent U-shaped groove 100.
[0049] In this embodiment, by fastening the first connecting portion 160 to the second connecting portion 170 of the adjacent U-shaped channel 100, rapid connection and assembly between multiple U-shaped channels can be achieved, forming a continuous cable laying channel. The height difference between the first connecting portion 160 and the second connecting portion 170 allows the first connecting portion 160 and the second connecting portion 170 to overlap and fasten when two adjacent U-shaped channels 100 are located on the same plane.
[0050] This connection method facilitates construction and installation, improving work efficiency. It enhances the overall sealing and stability of the cable tray, providing better protection for the cables. It also facilitates disassembly and maintenance, benefiting future inspection and renovation work.
[0051] Furthermore, the first connecting part 160 has a second mounting hole 161, and the second connecting part 170 has a third mounting hole 171. After the first connecting part 160 is fastened to the second connecting part 170 of the adjacent U-shaped groove 100, the axis of the second mounting hole 161 coincides with the axis of the third mounting hole 171.
[0052] In this embodiment, after the two connecting parts are fastened together, since the axes of the mounting holes coincide, the two adjacent U-shaped grooves 100 can be firmly connected together by inserting fasteners 140 (such as bolts). The design of the mounting hole axes coinciding makes the connection more precise and stable, improving the reliability of the connection. It facilitates the installation of fasteners 140, simplifies the connection operation, and improves construction efficiency. It enhances the connection strength between adjacent cable troughs, ensuring the continuity and stability of the cable laying channel.
[0053] Furthermore, after the first connecting part 160 and the second connecting part 170 are fastened together, the first connecting part 160 is located above the second connecting part 170, and a sealing strip 200 is also included. The sealing strip 200 is disposed on the second connecting part 170 and is used to seal the gap between the first connecting part 160 and the second connecting part 170.
[0054] In this embodiment, when the two connecting parts are fastened together, the sealing strip 200 located on the lower second connecting part 170 will be squeezed by the upper first connecting part, so that the sealing strip 200 can tightly fill the gap between the two, effectively preventing dust, moisture and other impurities from entering.
[0055] The 200 sealing strip enhances the sealing of the connection, improving cable protection. It prevents impurities from entering the connection, reducing the risk of corrosion and damage, and extending the service life of the cable tray. It also ensures a clean and dry cable laying environment, which is beneficial for the normal operation of the cable.
[0056] Example 3
[0057] Reference Figures 4-6 This is the third embodiment of the present invention. Compared with the second embodiment, the second connecting part 170 further includes a platform 162, a second mounting hole 161 located on the platform 162, and the upper surface of the platform 162 is perpendicular to the axis of the second mounting hole 161.
[0058] In this embodiment, when using bolts to fix the first connecting part 160 and the second connecting part 170, for ease of operation, the operator usually drives the bolt into the arc surface 111 of the bottom edge 110. The second mounting hole 161 is located on the platform 162, so that the platform 162 can be in complete contact with the bottom of the bolt nut, thereby making the connection more stable.
[0059] Furthermore, the upper surface of platform 162 is an inclined plane, which is used to guide the liquid on the upper surface of platform 162 away from platform 162.
[0060] In this embodiment, when liquid drips onto platform 162, the sloped design promotes rapid liquid flow away, preventing liquid accumulation on platform 162. The axes of the first mounting hole 141 and the second mounting hole 161 are perpendicular to the upper surface of platform 162, which allows for drainage on the upper surface of platform 162 while maintaining the stability of the fasteners penetrating the first mounting hole 141 and the second mounting hole 161.
[0061] 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. An SMC composite general cable trough, characterized by, The utility model relates to a cable trough, comprising: a U-shaped trough body (100) having a bottom edge (110) and two side edges (120) located on opposite sides of the bottom edge (110), the bottom edge (110) and the two side edges (120) forming a holding space (130) for holding cables; a plurality of fixing members (140) provided on the side edges (120) away from the bottom edge (110), the vertical distance between the fixing members (140) and the bottom edge (110) being not greater than the maximum vertical distance between the side edges (120) and the bottom edge (110), the fixing members (140) having first mounting holes (141) for fasteners to pass through, the U-shaped trough body (100) and the fixing members (140) being integrally formed; a first connecting portion (160) provided at one end of the U-shaped trough body (100); a second connecting portion (170) provided at the other end of the U-shaped trough body (100), the first connecting portion (160) being used for buckling with the second connecting portion (170) of an adjacent U-shaped trough body (100), the second connecting portion (170) having a platform (162), the upper surface of the platform (162) being inclined, and the upper surface of the platform (162) being used for guiding liquid on the upper surface of the platform (162) away from the platform (162).
2. A general purpose cable tray of SMC composite material according to claim 1, characterized in that, The fixing members (140) on the two side edges (120) are symmetrically distributed about the center line of the bottom edge (110), and the utility model further comprises: a plurality of reinforcing ribs (150), each of the reinforcing ribs (150) being provided on the outer side of the U-shaped trough body (100), and the two ends of the reinforcing rib (150) being connected to two symmetric fixing members (140).
3. A general purpose cable tray of SMC composite material according to claim 1, characterized in that, The side of the bottom edge (110) away from the holding space (130) is an arc surface (111) for guiding liquid on the bottom edge (110) to the side edges (120).
4. The SMC composite general cable tray according to claim 1, wherein, The first connecting portion (160) has a second mounting hole (161), the second connecting portion (170) has a third mounting hole (171), and the axis of the second mounting hole (161) coincides with the axis of the third mounting hole (171) after the first connecting portion (160) is buckled with the second connecting portion (170) of an adjacent U-shaped trough body (100).
5. The SMC composite general cable tray according to claim 1, wherein, The first connecting portion (160) is located above the second connecting portion (170) after the first connecting portion (160) is buckled with the second connecting portion (170), and the utility model further comprises: a sealing strip (200) provided on the second connecting portion (170), the sealing strip (200) being used for sealing the gap between the first connecting portion (160) and the second connecting portion (170).
6. A general purpose cable tray of SMC composite material according to claim 4, characterized in that, The second mounting hole (161) is located on the platform (162), and the upper surface of the platform (162) is perpendicular to the axis of the second mounting hole (161).