A precast concrete cable support and cable trench
The design of precast concrete cable supports solves the problems of long construction period, high material loss and insufficient connection reliability in traditional cable trench construction, and achieves efficient and stable cable laying and reduces construction costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CIMC CONSTRUCTION (TIANJIN) CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional cable trench construction suffers from long on-site wet operation cycles, high material loss rates, fragmented professional interfaces, high process redundancy, insufficient reliability of brick-built cable trench connections, easy corrosion of steel supports, and high maintenance costs.
The precast concrete cable support, including base, vertical arm, extension arm and pre-embedded connecting bar, is cast in one piece and used to fix and support cables in cable trenches, simplifying the installation process and improving stability and durability.
It facilitates cable laying, reduces construction time and costs, improves the quality and durability of cable trenches, and reduces on-site installation procedures.
Smart Images
Figure CN224319040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of modular building technology, and more specifically to a precast concrete cable bracket and cable trench. Background Technology
[0002] The application of prefabricated construction technology in power engineering has become an industry trend. As the core carrier for cable laying in power engineering, the construction quality and efficiency of cable trenches directly affect the project quality and overall project progress.
[0003] Traditional cable trench construction primarily employs brick masonry or cast-in-place concrete techniques. After the civil engineering team completes the main structure of the cable trench, the electrical engineering team is required to perform secondary drilling and support installation. This approach suffers from significant technical drawbacks, including long on-site wet work cycles, high material wastage rates, fragmented professional interfaces, and high redundancy in work processes.
[0004] Considering the overall on-site construction conditions, brick-built cable trenches are still widely used. However, the reliability of the connection between the split-type brackets and the trench body is insufficient, and the steel brackets are prone to corrosion, resulting in increased maintenance costs throughout the entire life cycle.
[0005] Therefore, a precast concrete cable support and cable trench are needed to at least partially solve the above problems. Utility Model Content
[0006] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.
[0007] To at least partially solve the above problems, a first aspect of this utility model provides a precast concrete cable support, wherein the precast concrete cable support is integrally cast and molded, and the precast concrete cable support includes:
[0008] A base having a first end and a second end opposite to each other along a first direction;
[0009] A vertical arm, which is connected to the first end of the base;
[0010] An extendable arm extending along the first direction, and a plurality of the extendable arms being vertically spaced apart on the side of the vertical arm facing the second end; and
[0011] Pre-embedded connecting bars, a plurality of the pre-embedded connecting bars passing through the vertical arm along a second direction, the second direction being perpendicular to the first direction, the pre-embedded connecting bars being used to fix the precast concrete cable bracket;
[0012] The upper surface of the extension arm and the base is provided with a cable groove.
[0013] The precast concrete cable support according to this utility model has stable quality and good durability. The support has fewer on-site installation procedures, and the cable laying is convenient, which greatly reduces the construction period and cost.
[0014] Optionally, the connection between the base and the vertical arm is chamfered.
[0015] Optionally, the horizontal cross-section of the vertical arm is constructed to be a uniform cross-section along the vertical direction.
[0016] Optionally, the horizontal cross-section of the vertical arm is constructed as a variable cross-section along the vertical direction, and the horizontal cross-sectional area of the vertical arm increases from top to bottom.
[0017] Optionally, the lower surface of the extender arm forms an angle with the side of the vertical arm, so that the extender arm extends upward at an angle.
[0018] Optionally, the length centerline of the extender arm is perpendicular to the height centerline of the vertical arm; or
[0019] The center line of the extension arm's length forms an acute angle with the center line of the vertical arm's height, causing the extension arm to extend upwards at an angle.
[0020] Optionally, the dimension of the extension arm along the first direction is smaller than the dimension of the base along the first direction.
[0021] Optionally, the bottom surface of the cable trough is an arc-shaped surface.
[0022] Optionally, the lower surface of the base is constructed as a plane, and the centerline of the base along the first direction is perpendicular to the height centerline of the vertical arm.
[0023] A second aspect of this utility model provides a cable trench, the cable trench comprising:
[0024] The trench walls; and
[0025] The precast concrete cable supports described in the first aspect above, wherein the pre-embedded connecting bars are anchored into the trench wall.
[0026] The cable trench according to this utility model has similar technical effects to the precast concrete cable support of the first aspect described above. Attached Figure Description
[0027] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention.
[0028] In the attached image:
[0029] Figure 1 A schematic diagram of a precast concrete cable support according to one embodiment of this application; and
[0030] Figure 2 This is a schematic diagram from another perspective of a precast concrete cable support according to one embodiment of this application.
[0031] Explanation of reference numerals in the attached figures:
[0032] 100: Precast concrete cable bracket
[0033] 110: Base
[0034] 111: First End
[0035] 112: Second end
[0036] 113: Chamfer
[0037] 120: Vertical arm
[0038] 130: Extend your arm
[0039] 131: Cable trough
[0040] 140: Embedded connecting bars
[0041] D1: First Direction
[0042] D2: Second Direction Detailed Implementation
[0043] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0044] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.
[0045] The ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Furthermore, for example, the term "first component" does not imply the existence of a "second component," and the term "second component" does not imply the existence of a "first component." It should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.
[0046] Now, refer to Figure 1 and Figure 2 Exemplary embodiments according to the present invention will be described in more detail below.
[0047] This utility model discloses a precast concrete cable support 100 and a cable trench. The cable trench includes trench walls and multiple precast concrete cable supports 100. The precast concrete supports are fixed on the cable trench.
[0048] The precast concrete cable support 100 is a modular building constructed by integral casting.
[0049] The precast concrete cable support 100 includes a base 110, a vertical arm 120, an extension arm 130, and embedded connecting bars 140. The base 110 has a first end 111 and a second end 112 opposite to each other along a first direction D1. The vertical arm 120 is connected to the first end 111 of the base 110, thus making the precast concrete cable support 100 generally L-shaped. The extension arms 130 extend along the first direction D1, and several extension arms 130 are vertically spaced on the side of the vertical arm 120 facing the second end 112, preferably evenly arranged vertically at designed intervals. If the embedded connecting bars 140 penetrate the vertical arm 120 along a second direction D2, the second direction D2 being perpendicular to the first direction D1, the embedded connecting bars 140 are used to fix the precast concrete cable support 100, specifically by anchoring to the trench wall in the cable trench, forming a tethering effect. The embedded connecting bars 140 are preferably steel bars.
[0050] The upper surfaces of the extension arm 130 and the base 110 are provided with cable grooves 131. Preferably, the bottom surface of the cable groove 131 is an arc-shaped surface to facilitate cable positioning and movement during cable installation.
[0051] The precast concrete cable bracket 100 according to this utility model has stable quality and good durability. The bracket has fewer on-site installation procedures and convenient cable laying, which greatly reduces the construction period and cost.
[0052] As one implementation, the connection between the base 110 and the vertical arm 120 forms a chamfer 113, or in other words, the first end 111 of the base 110 forms a chamfer 113, thereby forming a gravity-type support. Optionally, the connection between the base 110 and the vertical arm 120 may not have a chamfer 113, or in other words, the first end 111 of the base 110 may be constructed as a right-angle structure, thereby forming a non-gravity-type support.
[0053] The lower surface of the base 110 is planar, and the centerline of the base 110 along the first direction D1 is perpendicular to the height centerline of the vertical arm 120. The horizontal cross-section of the vertical arm 120 is a constant cross-section along the vertical direction. Alternatively, the horizontal cross-section of the vertical arm 120 may be a variable cross-section along the vertical direction, for example, the horizontal cross-sectional area of the vertical arm 120 increases from top to bottom.
[0054] The dimension of the extender arm 130 along the first direction D1 is smaller than the dimension of the base 110 along the first direction D1, so that when the precast concrete cable bracket 100 is assembled into the trench, for example, when two precast concrete cable brackets 100 are assembled face to face, the cable can pass through the gap between the extender arms 130.
[0055] In one implementation, the lower surface of the extender arm 130 forms an angle with the side of the vertical arm 120, so that the extender arm 130 extends obliquely upward. For example, the length centerline of the extender arm 130 forms an acute angle with the height centerline of the vertical arm 120, so that the extender arm 130 extends obliquely upward.
[0056] As another implementation, the length centerline of the extender arm 130 is perpendicular to the height centerline of the vertical arm 120.
[0057] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.
[0058] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative purposes. This utility model is not limited to the above embodiments. Many variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.
Claims
1. A precast concrete cable bracket, characterized in that, The precast concrete cable support structure is integrally cast, and the precast concrete cable support includes: A base having a first end and a second end opposite to each other along a first direction; A vertical arm, which is connected to the first end of the base; An extendable arm extending along the first direction, and a plurality of the extendable arms being vertically spaced apart on the side of the vertical arm facing the second end; and Pre-embedded connecting bars, a plurality of the pre-embedded connecting bars passing through the vertical arm along a second direction, the second direction being perpendicular to the first direction, the pre-embedded connecting bars being used to fix the precast concrete cable bracket; The upper surface of the extension arm and the base is provided with a cable groove.
2. The precast concrete cable bracket according to claim 1, characterized in that, The connection between the base and the vertical arm forms a chamfer.
3. The precast concrete cable bracket according to claim 1, characterized in that, The horizontal cross-section of the vertical arm is constructed to be a uniform cross-section along the vertical direction.
4. The precast concrete cable bracket according to claim 1, characterized in that, The horizontal cross-section of the vertical arm is a variable cross-section along the vertical direction, and the horizontal cross-sectional area of the vertical arm increases from top to bottom.
5. The precast concrete cable bracket according to claim 1, characterized in that, The lower surface of the extender arm forms an angle with the side of the vertical arm, so that the extender arm extends upward at an angle.
6. The precast concrete cable bracket according to claim 1, characterized in that, The centerline of the extension arm's length is perpendicular to the centerline of the vertical arm's height; or The center line of the extension arm's length forms an acute angle with the center line of the vertical arm's height, causing the extension arm to extend upwards at an angle.
7. The precast concrete cable bracket according to claim 1, characterized in that, The dimension of the extender along the first direction is smaller than the dimension of the base along the first direction.
8. The precast concrete cable bracket according to claim 1, characterized in that, The bottom surface of the cable trough is an arc surface.
9. The precast concrete cable bracket according to claim 1, characterized in that, The lower surface of the base is planar, and the center line of the base along the first direction is perpendicular to the height center line of the vertical arm.
10. A cable trench, characterized in that, The cable trench includes: The trench walls; and Multiple precast concrete cable supports according to any one of claims 1-9, wherein the pre-embedded connecting bars are anchored into the trench wall.