A net closing crossing frame for power transmission line construction
By designing anchor points, steel cables, and fixing bases in combination with fastening units, the problem of loose steel cables in traditional crossing frames was solved, enabling rapid construction and stable reinforcement of the crossing frames and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWERCHINA HUBEI ENG CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-07
Smart Images

Figure CN224472961U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power line infrastructure technology, specifically to a protective netting crossing frame for power transmission line construction. Background Technology
[0002] In the construction of existing power transmission lines, when a new line needs to cross existing live power lines, railways, highways or river valleys, temporary crossing frames are usually used in conjunction with netting measures to ensure the safety of both the construction and the facilities being crossed.
[0003] Traditional crossing frames are mostly constructed using steel pipes or wooden poles, with an insulating net suspended from the top. After erection, in windy areas, steel cables are typically installed to reinforce the crossing frame and ensure its stability. Traditional reinforcement methods use multi-point anchoring, employing ground piles to tighten the steel cables, thus achieving multi-point restraint of the crossing frame. However, during construction, it is difficult to maintain the tightness of the anchoring steel cables, and they tend to loosen over time, affecting the reinforcement effect. Subsequent tightening requires removing the piles and re-tightening, which is cumbersome. To address the shortcomings of existing technologies, this utility model provides a netted crossing frame for power transmission line construction to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a protective netting crossing frame for power transmission line construction. The design of anchor points, steel cables, and fixing bases facilitates rapid on-site construction and reinforces the main body of the crossing frame. Simultaneously, the design of the fastening unit allows for quick and easy tightening of the steel cables, maintaining a taut state and providing excellent reinforcement of the crossing frame. If the steel cables become loose later, rotating the screw rod allows for re-tightening, making operation convenient and meeting usage requirements.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a netting crossing frame for power transmission line construction, comprising a foundation and a crossing frame main body fixedly connected to the foundation, wherein the top of the crossing frame main body is provided with multiple sets of anchor points, and steel cables are fixedly connected to the anchor points;
[0006] The end of the steel cable away from the anchor point is provided with a fixing seat, and the fixing seat is fixed to the foundation.
[0007] A fastening unit is provided between the fixing base and the steel cable, the fastening unit comprising:
[0008] The guide rail is fixedly connected to the fixed base;
[0009] The adjusting block is slidably connected to the guide rail and fixed to the steel cable;
[0010] The lead screw is rotatably connected to the guide rail and threadedly connected to the adjusting block.
[0011] Preferably, the fixed base is provided with a fixed pulley for limiting the movement of the steel cable.
[0012] Preferably, the fixing base has multiple sets of fixing holes.
[0013] Preferably, a protective cover for protecting the fastening unit is fitted over the fixing base.
[0014] Preferably, the protective cover has slots corresponding to the positions of the lead screw and steel cable.
[0015] Preferably, the main body of the crossing frame is provided with several sets of reinforcing ribs.
[0016] Preferably, a rotating handle is fixedly connected to the lead screw.
[0017] Its beneficial effects are as follows:
[0018] The slab crossing frame used in the construction of this transmission line, through the design of anchor points, steel cables, and fixing seats, facilitates rapid on-site construction and reinforcement of the main body of the crossing frame. At the same time, the design of the fastening unit allows the steel cables to be quickly tightened and kept in a tight state, resulting in good reinforcement of the main body of the crossing frame. If the steel cables become loose later, they can be re-tightened by rotating the screw rod, making the operation convenient and meeting the usage requirements. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the fixing base of this utility model;
[0022] Figure 3 This is a schematic diagram of the fastening unit of this utility model.
[0023] In the diagram: 1. Foundation; 2. Main body of the bridging frame; 21. Reinforcing rib; 3. Anchor point; 4. Steel cable; 5. Fixing seat; 51. Fixing hole; 6. Fastening unit; 61. Guide rail; 62. Adjusting block; 63. Screw; 631. Rotating handle; 7. Fixed pulley; 8. Protective cover; 81. Groove. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0026] This utility model discloses a protective mesh crossing frame for power transmission line construction, according to the attached... Figure 1-3 As shown, it includes a foundation 1 and a main body 2 of a truss frame fixedly connected to the foundation 1, according to the attached... Figure 1 As shown, furthermore, the main body 2 of the bridging frame is provided with several sets of reinforcing ribs 21. The reinforcing ribs 21 can enhance the structural strength of the main body 2 of the bridging frame, making it less prone to deformation or damage when subjected to large external forces, thereby improving the overall stability and safety of the bridging frame.
[0027] The top of the main body 2 of the bridging frame is provided with multiple sets of anchor points 3, and steel cables 4 are fixedly connected to the anchor points 3; the end of the steel cable 4 away from the anchor point 3 is provided with a fixing seat 5, and the fixing seat 5 is fixed to the foundation 1.
[0028] A fastening unit 6 is provided between the fixing base 5 and the steel cable 4. The fastening unit 6 includes:
[0029] Guide rail 61 is fixedly connected to the fixed base 5;
[0030] Adjusting block 62 is slidably connected to guide rail 61 and fixed to steel cable 4;
[0031] The lead screw 63 is rotatably connected to the guide rail 61 and threadedly connected to the adjusting block 62. By setting the fastening unit 6, the lead screw 63 rotates to drive the adjusting block 62 to slide on the guide rail 61, thereby realizing the tension adjustment of the steel cable 4, ensuring the stability of the crossing frame, and also making the crossing frame easy to install. If the steel cable 4 becomes loose later, it is convenient to rotate the lead screw 63 for quick locking.
[0032] According to the appendix Figure 3 As shown, a rotating handle 631 is further fixedly connected to the lead screw 63. The rotating handle 631 allows construction personnel to easily rotate the lead screw 63, thereby more easily adjusting the position of the adjusting block 62, realizing the tensioning operation of the steel cable 4, and improving construction efficiency.
[0033] According to the appendix Figure 2As shown, the fixed base 5 is further provided with a fixed pulley 7 for limiting the movement of the steel cable 4. The fixed pulley 7 can guide the direction of the steel cable 4, reduce the friction between the steel cable 4 and the fixed base 5, extend the service life of the steel cable 4, and at the same time ensure that the steel cable 4 will not deviate from the predetermined position when under force.
[0034] According to the appendix Figure 2 As shown, the fixing base 5 further includes multiple sets of fixing holes 51. The design of multiple sets of fixing holes 51 allows the fixing base 5 to be more securely fixed to the foundation 1 using bolts or other connecting parts, thereby enhancing the wind resistance and stability of the entire gantry frame.
[0035] According to the appendix Figure 2 As shown, a protective cover 8 is further fitted on the top of the fixing base 5 to protect the fastening unit 6. The protective cover 8 can effectively reduce the entry of rainwater, dust and other impurities into the fastening unit 6, reduce the possibility of rust or damage to the lead screw 63 and adjusting block 62, and extend the service life of the fastening unit 6.
[0036] According to the appendix Figure 2 , 3 As shown, the protective cover 8 further includes slots 81 corresponding to the positions of the lead screw 63 and the steel cable 4. The design of the slots 81 ensures that the protective cover 8 will not affect the rotation of the lead screw 63 or the tension adjustment of the steel cable 4 after installation, while also providing protection.
[0037] The working principle of the protective netting crossing frame used in the construction of this power transmission line is as follows:
[0038] During the construction of the transmission line, the main body 2 of the crossing frame is fixed to the foundation 1. One end of the steel cable 4 is fixed to the top of the main body 2 of the crossing frame through anchor points 3, and the other end is guided by the fixed pulley 7 and fixed to the fixed seat 5. The tension of the steel cable 4 is adjusted by rotating the screw 63 in the fastening unit 6, which drives the adjusting block 62 to slide on the guide rail 61, so that the crossing frame reaches a stable state. The protective cover 8 protects the fastening unit 6, and the reinforcing rib 21 enhances the structural strength of the main body 2 of the crossing frame.
[0039] The steps for using the protective mesh crossing frame during the construction of this power transmission line are as follows:
[0040] The foundation 1 should be compacted and leveled to ensure its stability.
[0041] Fix the main body 2 of the gantry frame to the foundation 1 and install the reinforcing ribs 21.
[0042] Anchor point 3 is installed on the top of the main body 2 of the bridging frame, and one end of the steel cable 4 is fixed to the anchor point 3.
[0043] Fix the fixing seat 5 to the foundation 1 through the fixing hole 51, and then fix the other end of the steel cable 4 to the fastening unit 6 after guiding it through the fixed pulley 7.
[0044] By rotating the handle 631 to rotate the lead screw 63, the position of the adjusting block 62 is adjusted to adjust the tension of the steel cable 4.
[0045] Install the protective cover 8, placing it over the fixing base 5 so that the slot 81 aligns with the positions of the lead rod 63 and the steel cable 4. The beneficial effects of this power transmission line construction's protective mesh crossing frame are as follows:
[0046] By setting the fastening unit 6, the tension of the steel cable 4 can be easily adjusted to ensure the stability of the crossing frame.
[0047] The design of the fixed pulley 7 reduces the friction between the steel cable 4 and the fixed seat 5, thus extending the service life of the steel cable 4.
[0048] The protective cover 8 can effectively protect the fastening unit 6 and extend its service life.
[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cross-passage frame for power transmission line construction, comprising a foundation (1) and a cross-passage frame body (2) fixedly connected to the foundation (1), characterized in that: The top of the main body (2) of the crossing frame is provided with multiple sets of anchor points (3), and steel cables (4) are fixedly connected to the anchor points (3); The steel cable (4) is provided with a fixing seat (5) at the end away from the anchor point (3), and the fixing seat (5) is fixed to the foundation (1); a fastening unit (6) is provided between the fixing seat (5) and the steel cable (4), and the fastening unit (6) includes: The guide rail (61) is fixedly connected to the fixed base (5); Adjusting block (62) is slidably connected to the guide rail (61) and fixed to the steel cable (4); The lead screw (63) is rotatably connected to the guide rail (61) and threadedly connected to the adjusting block (62).
2. The power transmission line construction mesh crossing frame according to claim 1, characterized in that, The fixed base (5) is provided with a fixed pulley (7) for limiting the steel cable (4).
3. The power transmission line construction mesh crossing frame according to claim 2, characterized in that, The fixing base (5) has multiple sets of fixing holes (51).
4. The power transmission line construction mesh crossing frame according to claim 3, characterized in that, A protective cover (8) for protecting the fastening unit (6) is fitted on the top of the fixing base (5).
5. A power transmission line construction mesh crossing frame according to claim 4, characterized in that, The protective cover (8) has slots (81) corresponding to the positions of the lead screw (63) and the steel cable (4).
6. The power transmission line construction mesh crossing frame according to claim 1, characterized in that, The main body (2) of the crossing frame is provided with several sets of reinforcing ribs (21).
7. The power transmission line construction mesh crossing frame according to claim 1, characterized in that, A rotating handle (631) is fixedly connected to the lead screw (63).