External mounting rack for power distribution and transformation terminal
The external mounting bracket, designed with channel steel frame and gradient positioning screws, solves the problem of easy damage and corrosion of traditional fixed structures for distribution network terminal equipment under extreme conditions, achieving high reliability and rapid installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-03-10
AI Technical Summary
Traditionally installed distribution network terminal equipment is prone to damage under high loads and extreme weather conditions, leading to frequent power supply accidents. Furthermore, it corrodes rapidly in high salt spray environments, failing to meet the requirements for high reliability and environmental adaptability.
The external mounting bracket, designed with a channel steel frame and gradient positioning screws, forms a multi-level stress dispersion structure through the synergistic effect of the symmetrical double channel steel frame and gradient length positioning screws. Combined with the 6061-T6 aluminum alloy channel steel frame and 304 stainless steel limit studs, it can adapt to different rod diameters and environmental conditions.
It achieves efficient and rapid equipment fixing, improves torsional strength, enhances load-bearing capacity, improves corrosion resistance, shortens construction cycle, reduces fault repair time, and is adaptable to typhoons of level 10 and above and high salt spray environments.
Smart Images
Figure CN223985028U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power distribution terminal installation technology, specifically to an external mounting bracket for power distribution terminals. Background Technology
[0002] With the acceleration of urbanization and the advancement of smart grid construction, the deployment density of distribution network terminal equipment (such as distribution transformers and smart monitoring terminals) has increased significantly. Traditional installation methods mainly rely on embedded bases or pole-mounted brackets. The former requires pre-embedded concrete structures, has a long construction period, and is highly destructive; the latter uses steel clamps to fix the equipment to the power pole, but its torsional strength and weather resistance are insufficient.
[0003] Existing steel clamps (such as those made of Q235 carbon steel) are prone to fracture due to stress concentration when side-mounted equipment weighs over 300 kg or encounters extreme weather (such as typhoons of level 10 or above). Furthermore, the corrosion rate in high salt spray environments reaches 0.15 mm / year, leading to rapid degradation of structural strength. Such problems have already caused numerous power supply accidents. For example, during the 2022 typhoon, direct losses in the Yangtze River Delta region due to clamp breakage exceeded 26 million yuan. There is an urgent need for new installation solutions with high reliability and strong environmental adaptability. Utility Model Content
[0004] This application provides an external mounting bracket for power distribution terminals, which can quickly and efficiently fix the power distribution terminals to utility poles. Moreover, it has strong load-bearing capacity and torsional resistance, which can effectively improve the safety of power distribution terminals and effectively solve the problems in the background art.
[0005] To achieve the above objectives, this application provides the following technical solution: an external mounting bracket for a power distribution terminal, comprising a channel steel frame; the number of channel steel frames is two, the two channel steel frames are symmetrically arranged front and rear, and a clamping mechanism for fixing column rods is provided between the two channel steel frames.
[0006] The clamping mechanism includes two parallel strip supports. Multiple positioning screws are threaded onto the outer side of the strip supports. The positioning screws are evenly distributed along the length of the strip supports. The channel steel frame has a channel steel groove with an open bottom. Semi-circular grooves are evenly distributed along the length of the lower end of the inner side of the channel steel groove. A slider is slidably connected inside the channel steel groove and is fixed by a limiting stud.
[0007] The upper surface of the channel steel frame has multiple strip-shaped through holes evenly distributed from left to right.
[0008] Preferably, the clamping mechanism is in the form of two sets, and both sets of clamping mechanisms can be detachably installed on the left and right sides of the channel steel frame.
[0009] Preferably, the lengths of the plurality of positioning screws are not equal, and the length of the positioning screws gradually increases from the middle of the strip bracket to both ends.
[0010] Preferably, the limiting stud is inserted into the semi-circular groove.
[0011] Preferably, the inner side of the channel steel is provided with a strip groove near the strip-shaped through hole.
[0012] Compared with the prior art, the beneficial effects of this application are:
[0013] 1. This external mounting bracket for power distribution terminals can quickly and efficiently fix the power distribution terminals to the utility poles. Moreover, it has strong load-bearing capacity and torsional resistance, which can effectively improve the safety of power distribution terminals.
[0014] 2. Through the coordinated design of symmetrical double-channel steel frame and gradient length positioning screws, a multi-level stress dispersion structure is formed, with a measured torsional strength of 350MPa (traditional clamps only 120MPa), which can bear a lateral load of 500kg and meet the requirements of typhoon conditions above level 10.
[0015] 3. It adopts 6061-T6 aluminum alloy channel steel frame (surface anodized treatment) and 304 stainless steel limit studs. The salt spray test (GB / T 10125-2021) shows an annual corrosion rate of ≤0.02mm, which is 7 times more corrosion resistant than traditional carbon steel clamps and is suitable for coastal high humidity and high salt environment.
[0016] 4. The modular clamping mechanism supports quick assembly and disassembly (single operation ≤ 30 minutes). The sliding adjustment design of the slider can adapt to rod diameters of Φ200mm~Φ600mm, shortening the construction cycle by 80% compared with traditional solutions. The plug-in engagement mechanism of the limit stud and the semi-circular groove allows for partial replacement of damaged parts, avoiding overall disassembly and shortening the fault repair time.
[0017] 5. The gradient positioning screws increase in length from the center to both ends (10mm~25mm), forming a progressive clamping force distribution. The gradient positioning screws are pressed tightly against the utility pole, effectively suppressing low-frequency vibrations caused by wind. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this application;
[0019] Figure 2 This is the main view of this application;
[0020] Figure 3 This is a schematic diagram of the bottom structure of this application;
[0021] Figure 4 This is a top view of this application;
[0022] Figure 5 for Figure 3 A magnified view of a portion of point A in the middle.
[0023] In the diagram: 1 slider, 2 strip bracket, 3 channel steel frame, 4 strip through hole, 5 positioning screw, 6 semi-circular groove, 7 limit stud, 8 channel steel groove, 9 strip groove. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] In the description of this application, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating directional or positional relationships, they are based on the appendix. Figure 2 The orientations or positional relationships shown are for the convenience of describing this application and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When a feature is referred to as "set", "fixed", or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.
[0026] Please see Figure 1-5 This application provides the following technical solution: an external mounting bracket for a power distribution terminal, characterized in that: it includes a channel steel frame 3; the number of channel steel frames 3 is two, the two channel steel frames 3 are symmetrically arranged front and rear, and a clamping mechanism for fixing column rods is provided between the two channel steel frames 3.
[0027] Specifically, the number of clamping mechanisms can be configured according to needs. When there is only one utility pole, only one set of clamping mechanisms is needed. When there are two adjacent utility poles, two sets of clamping mechanisms are needed to fix the external mounting bracket.
[0028] The clamping mechanism includes two parallel strip supports 2. Multiple positioning screws 5 are threaded onto the outer side of the strip supports 2. The positioning screws 5 are evenly distributed along the length of the strip supports 2. The channel steel frame 3 has a channel steel groove 8 with an open bottom. Semi-circular grooves 6 are evenly distributed along the length of the lower end of the inner side of the channel steel groove 8. A slider 1 is slidably connected inside the channel steel groove 8. The slider 1 is fixed by a limiting stud 7.
[0029] Specifically, it is even more necessary to be able to slide and adjust the position of slider 1 so as to adjust the position of strip bracket 2. When strip bracket 2 slides to the appropriate position, the position of slider 1 is fixed by locking limit screw 7. When locking limit screw 7, limit screw 7 can just be inserted into semi-circular groove 6.
[0030] The upper surface of the channel steel frame 3 has multiple strip-shaped through holes 4 evenly distributed from left to right.
[0031] Specifically, the design of the strip-shaped through hole 4 facilitates the adjustment of the position of the positioning bolts during equipment installation.
[0032] Furthermore, the clamping mechanism is provided in two sets, and both sets of clamping mechanisms can be detachably installed on the left and right sides of the channel steel frame 3.
[0033] Furthermore, the lengths of the multiple positioning screws 5 are not uniform, with the length of the positioning screws 5 gradually increasing from the middle to both ends of the strip bracket 2.
[0034] Specifically, during installation, each positioning screw 5 is pressed tightly against the outer side of the utility pole, which can effectively improve the stability of the clamping.
[0035] Furthermore, the limiting stud 7 is inserted into the semi-circular groove 6.
[0036] Specifically, the position of the slider 1 can be fixed after the limiting stud 7 is screwed into the semi-circular groove 6.
[0037] Furthermore, a strip groove 9 is provided on the inner side of the channel steel trough 8 near the strip through hole 4.
[0038] Specifically, the nut of the positioning bolt is placed in the slot 9, which can hide the nut well and effectively avoid interference from the slider 1.
[0039] More specifically, the width of the slot 9 is slightly smaller than the outer diameter of the nut, so the nut cannot rotate 360 degrees when it is placed in the slot 9.
[0040] In use: In a scenario where there is only one utility pole, first fix one of the strip brackets 2 to its predetermined position on the channel steel frame 3. Next, slide the slider 1 of the other set of strip brackets 2 along the channel steel groove 8, so that it clamps the utility pole together with the fixed strip bracket 2. Then, fix the position of the slider 1 by tightening all the limit studs 7. Finally, rotate the positioning screw 5 so that its end presses firmly against the surface of the utility pole, completing the quick installation and fixing of the distribution transformer terminal.
[0041] When there are two adjacent utility poles, use the same method to fix the other end of the channel steel frame 3 to the utility pole as well.
[0042] After the channel steel frame 3 is fixed, the equipment can be installed on the upper surface of the channel steel frame 3.
[0043] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An external mounting rack for a power distribution terminal, characterized by: Including channel steel frame (3);The number of channel steel frame (3) is two, two channel steel frames (3) are symmetrically set up before and after, and the clamping mechanism for fixing the cylindrical rod is arranged between two channel steel frames (3); The clamping mechanism includes two parallel strip-shaped supports (2), a plurality of positioning screws (5) are screw-connected to the outer side of the strip-shaped support (2), the positioning screws (5) are distributed at equal intervals along the length direction of the strip-shaped support (2), the channel steel frame (3) is internally provided with a channel steel groove (8) with an open lower end, the inner side of the channel steel groove (8) is uniformly provided with a semicircular groove (6) along the length direction of the lower end, and the channel steel groove (8) is slidably connected with a sliding block (1), and the sliding block (1) is fixed through a limiting stud (7); The upper surface of the channel steel frame (3) is uniformly provided with a plurality of strip-shaped through holes (4) from left to right.
2. The external mounting rack for a distribution terminal according to claim 1, wherein: The number of the clamping mechanisms is two groups, and the two groups of clamping mechanisms can be detachably installed on the left and right sides of the channel steel frame (3).
3. The external mounting rack for a power distribution terminal according to claim 1, characterized in that: The lengths of the plurality of positioning screws (5) are inconsistent, and the lengths of the positioning screws (5) gradually increase from the middle to the two ends of the strip-shaped support (2).
4. The external mounting rack for a distribution terminal according to claim 1, wherein: The limiting stud (7) is insertedly matched with the semicircular groove (6).
5. The external mounting rack for a power distribution terminal according to claim 1, characterized in that: The inner side of the channel steel groove (8) is provided with a strip-shaped groove (9) close to the strip-shaped through hole (4).