A quick grounding device for angle steel and round steel butt joint

Abstract

The utility model discloses a quick grounding device for angle steel and round steel butt joint, including butt joint device body, is equipped with first connecting assembly, second connecting assembly and reinforcing assembly in it, first connecting assembly is constituted by first L type spare and second L type spare, and the angle steel accommodating groove for clamping fixed grounding angle steel is formed in cooperation, second connecting assembly includes the first butt joint spare of being equipped with round steel clamping groove, reinforcing assembly adopts the connecting mode of bolt set, and the reliable horizontal lap joint of angle steel and round steel is realized through the bolt hole on the component and is tightened fast, the device body still includes the butt joint box and butt joint cover of having the pass and grounding port, provides protection, adopts the mechanical pressure joint to replace traditional welding, and there is no open fire risk, and the construction is quick, and the overall structure design ensures that the contact resistance of connecting point is low, and the mechanical strength is high, and the corrosion resistance is good, and the fixed and warning function is integrated, and the safety, efficiency and reliability of grounding grid construction and maintenance are improved.

Description

Technical Field

[0001] This utility model relates to the field of grounding equipment for power facilities, and more specifically, it relates to a fast grounding device for connecting angle steel and round steel. Background Technology

[0002] In power systems, the grounding grid of transmission tower foundations is a key facility for ensuring the safe and stable operation of the power grid. Traditional grounding grids often use welding to connect the grounding round steel and the grounding angle steel. Although this method provides high connection strength, it has significant drawbacks. It involves open flame work, especially in mountainous areas and other areas with complex natural environments and dense vegetation. Welding operations can easily cause wildfires, posing a huge threat to the ecological environment. It also increases the safety risks of construction, and has disadvantages such as open flame work risks, low construction efficiency, quality being greatly affected by human factors, and difficulties in later maintenance. Although some mechanical connection devices have emerged in the existing technology, most of them have relatively simple structures. When exposed to the external environment, they are prone to loosening due to corrosion or external impact, resulting in insufficient reliability. At the same time, existing devices lack effective protection and warning structures, posing certain safety hazards. For example, a novel non-fire-proof and non-pressurized grounding round steel connection device with patent publication number CN220306656U is only for the connection between round steel and round steel, and does not involve the connection between round steel and angle steel. To address the problems existing in the prior art, a rapid grounding device for connecting angle steel and round steel is provided. This device, through modular design, achieves a rapid and reliable mechanical horizontal connection between angle steel and round steel, and possesses protective, fixing, and warning functions, effectively improving the efficiency and safety of grounding grid construction. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fast grounding device for splicing angle steel and round steel, so as to solve the problems existing in the background technology.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a fast grounding device for splicing angle steel and round steel, comprising a splicing device body; the splicing device body is provided with: a first connecting component for connecting with grounding angle steel, a second connecting component for connecting with round steel, and a reinforcing component for splicing the first connecting component and the second connecting component to make the round steel and the grounding angle steel horizontally overlap; the reinforcing component is detachably connected to the first connecting component and the second connecting component respectively.

[0005] Optionally, the first connecting assembly includes: a first L-shaped member and a second L-shaped member; one end of the first L-shaped member is bent to form a first bent portion; one end of the second L-shaped member is bent to form a second bent portion; the first bent portion and the second bent portion are fixedly connected so that the first L-shaped member and the second L-shaped member cooperate to form a first receiving groove for accommodating one end of the grounding angle steel; a second receiving groove for accommodating the other end of the grounding angle steel is also provided on the end of the second L-shaped member near the first receiving groove; the first receiving groove and the second receiving groove are connected to cooperate to form an angle steel receiving groove for accommodating the entire grounding angle steel; a plurality of first bolt holes are provided on both the first L-shaped member and the second L-shaped member for the reinforcing assembly to pass through.

[0006] Optionally, the first L-shaped part and the second L-shaped part are integrally formed.

[0007] Optionally, the second connecting component includes a first connector; the inner side of the first connector opposite to the angle steel receiving groove is provided with a round steel clamping groove that matches the outer diameter of the round steel; the first connector is provided with second bolt holes corresponding to a plurality of first bolt holes for the reinforcing component to pass through.

[0008] Optionally, the reinforcement component includes several sets of reinforcement bolts; the reinforcement bolts pass through the first connecting component and the second connecting component in sequence, so that the grounding angle steel on the first connecting component and the round steel on the second connecting component overlap horizontally.

[0009] Optionally, the main body of the connecting device includes: a connecting box and a connecting cover adapted to the connecting box; the connecting cover can be detachably connected to the connecting box and is disposed at the opening of the connecting box; the four sides of the connecting box are provided with several openings for the round steel to pass through, and the several openings are all connected to the inner cavity of the connecting box; the several openings can be detachably provided with sealing members for closing; the bottom of the connecting box is provided with a grounding port for the grounding end of the grounding angle steel to extend and be grounded.

[0010] Optionally, the outer side of the connector box is also provided with a number of fixing ears for fixing the connector box to the ground; the fixing ears are provided with fixing holes for bolts to pass through.

[0011] Optionally, the groove of the round steel is machined with anti-slip texture; the anti-slip texture is serrated, grid-like, or dotted.

[0012] Optionally, the first L-shaped member, the second L-shaped member, and the first connecting member are all made of aluminum alloy.

[0013] Optionally, the connector cover is provided with a silicone warning element to warn of the danger of high voltage.

[0014] In summary, this utility model has the following beneficial effects: 1. This device employs a modular mechanical connection method for installation, eliminating the need for welding. This allows for fireless operation in mountainous areas, and installation can be completed using a standard wrench, significantly improving construction efficiency and shortening the construction period. The unique angle steel receiving groove and anti-slip textured round steel clamping groove design in the first and second connecting components, combined with reinforcing bolts, provide significant contact pressure, ensuring sufficient contact area and stable electrical connection with low contact resistance. Furthermore, housing both the first and second connecting components within a junction box, the design of which, along with the junction cover, encloses the electrical connection points within an internal cavity, effectively protecting against rainwater, dust erosion, and external impacts, significantly improving the device's corrosion resistance and long-term reliability. 2. In the overall design of the junction box and junction cover, the silicone warning piece on the junction cover conspicuously indicates the danger of high voltage, enhancing the safety of the working environment; the fixing ears on the junction box can be firmly fixed to the ground with anchor bolts to prevent the device from shifting due to soil disturbance or external force; at the same time, the overall detachable structure of this device facilitates the later inspection, maintenance or replacement of the grounding grid. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure assembly of this utility model; Figure 2 This is a schematic diagram of the assembly structure of the first connecting component and the second connecting component of this utility model; Figure 3 This is a schematic diagram of the specific structure of the first connecting component of this utility model; Figure 4 This is a schematic diagram of the specific structure of the second connecting component of this utility model; Figure 5 This is a schematic diagram of the specific structure of the connecting device body of this utility model; Figure 6 This is a bottom view of the main body of the connecting device in this utility model.

[0016] In the diagram: 1. Connecting device body; 11. Connecting box; 12. Connecting cover; 13. Opening; 14. Sealing component; 15. Grounding port; 16. Fixing ear; 17. Fixing hole; 2. First connecting assembly; 21. First L-shaped component; 22. Second L-shaped component; 23. First bending part; 24. Second bending part; 25. First receiving groove; 26. Second receiving groove; 27. Angle steel receiving groove; 28. First bolt hole; 3. Second connecting assembly; 31. First connecting component; 32. Round steel clamping groove; 33. Second bolt hole. Detailed Implementation

[0017] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0019] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] This utility model provides a fast grounding device for splicing angle steel and round steel, such as... Figure 1 As shown, it includes a connecting device body 1; the connecting device body 1 is provided with: a first connecting component 2 for connecting with the grounding angle steel, a second connecting component 3 for connecting with the round steel, and a reinforcing component for connecting the first connecting component 2 and the second connecting component 3 to the grounding angle steel so that the round steel and the grounding angle steel are horizontally overlapped; the reinforcing component is detachably connected to the first connecting component 2 and the second connecting component 3 respectively.

[0022] Further, the first connecting component 2 includes: a first L-shaped component 21 and a second L-shaped component 22; one end of the first L-shaped component 21 is bent to form a first bent portion 23; one end of the second L-shaped component 22 is bent to form a second bent portion 24; the first bent portion 23 and the second bent portion 24 are fixedly connected so that the first L-shaped component 21 and the second L-shaped component 22 cooperate to form a first receiving groove 25 for accommodating one end of the grounding angle steel; a second receiving groove 26 for accommodating the other end of the grounding angle steel is also provided on one end of the second L-shaped component 22 near the first receiving groove 25; the first receiving groove 25 and the second receiving groove 26 are connected to form an angle steel receiving groove 27 for accommodating the entire grounding angle steel; a plurality of first bolt holes 28 for the reinforcing component to pass through are provided on both the first L-shaped component 21 and the second L-shaped component 22.

[0023] Specifically, such as Figure 3 As shown, one end of the first L-shaped piece 21 is bent at a right angle to form a first bent portion 23; one end of the second L-shaped piece 22 is bent at a right angle to form a second bent portion 24; the first bent portion 23 and the second bent portion 24 are aligned by welding, so that the inner side of the first L-shaped piece 21 and the second L-shaped piece 22 is formed into a first receiving groove 25 after combination; a second receiving groove 26 is machined on the second L-shaped piece 22 using drilling and cutting processes such as milling; the first receiving groove 25 and the second receiving groove 26 together constitute a three-dimensional angle steel receiving groove 27, the shape of which is perfectly matched with the cross-section of the grounding angle steel, and can cover and restrict the angle steel from three directions; both L-shaped pieces are drilled with first bolt holes 28 for bolts to pass through; effectively preventing the grounding angle steel from rotating, tilting or lateral displacement when under force, ensuring the mechanical stability of the connection point.

[0024] Furthermore, the first L-shaped part 21 and the second L-shaped part 22 are integrally formed.

[0025] Specifically, based on the welding of the first L-shaped part 21 and the second L-shaped part 22, the optimal embodiment is formed in one piece by precision casting process. That is, the first bending part 23 and the second bending part 24 are an integral structure without any seams, which eliminates the heat-affected zone, poor welding and other weak points that may be generated by welding. The overall structure is more robust and can withstand greater bolt tension and external stress, thereby further improving the overall structural strength and further improving the adaptability of the scene.

[0026] Furthermore, the second connecting component 3 includes a first connector 31; the inner side of the first connector 31 opposite to the angle steel receiving groove 27 is provided with a round steel clamping groove 32 that matches the outer diameter of the round steel; the first connector 31 is provided with second bolt holes 33 corresponding to a plurality of first bolt holes 28 for the reinforcing component to pass through.

[0027] Specifically, such as Figure 4 As shown, the first connector 31, which is a rectangular block, has two round steel clamping slots 32 machined on its inner side facing the angle steel receiving slot 27 using a milling machine or other drilling and cutting process. The curvature of the slots matches the outer diameter of the round steel. Four second bolt holes 33 are also drilled on the first connector 31. The positions of the second bolt holes 33 correspond one-to-one with the first bolt holes 28 on the first connecting component 2, ensuring that the reinforcing component can pass through smoothly. The design of the round steel clamping slots 32 achieves precise positioning and effective load-bearing of the round steel, avoids rolling or displacement of the round steel during the clamping process, and ensures that the pressure applied by the bolts can be evenly applied to the round steel, thereby maximizing the effective contact area between the metals.

[0028] Furthermore, the reinforcement component includes several sets of reinforcement bolts; the reinforcement bolts pass through the first connecting component 2 and the second connecting component 3 in sequence, so that the grounding angle steel on the first connecting component 2 and the round steel on the second connecting component 3 are horizontally overlapped.

[0029] Specifically, the reinforcing bolts (not shown in the accompanying drawings) can be made of corrosion-resistant metal materials. In the preferred embodiment, high-strength galvanized reinforcing bolts and matching anti-loosening nuts are used. During installation, the reinforcing bolts pass sequentially through the first bolt hole 28 of the first L-shaped component 21, the second bolt hole 33 of the first connector 31, and the first bolt hole 28 of the second L-shaped component 22. Finally, the nuts are tightened to the specified torque using a torque wrench, thereby achieving the mutual connection between the first connecting component 2 and the second connecting component 3. Using high-strength bolt groups as reinforcing components can generate huge and continuous mechanical pressure, thereby pressing the contact surface of the angle steel and round steel to microscopic plastic deformation, greatly increasing the actual contact area. At the same time, the bolt connection method achieves disassembly, providing convenience for future maintenance, measurement, and modification.

[0030] Furthermore, the main body 1 of the connecting device includes: a connecting box 11 and a connecting cover 12 adapted to the connecting box 11; the connecting cover 12 can be detachably connected to the connecting box 11 and is disposed at the opening of the connecting box 11; the four sides of the connecting box 11 are provided with a plurality of openings 13 for the round steel to pass through, and the plurality of openings 13 are all connected to the inner cavity of the connecting box 11; the plurality of openings 13 can be detachably provided with a sealing member 14 for closing; the bottom of the connecting box 11 is provided with a grounding port 15 for the grounding end of the grounding angle steel to extend and be grounded.

[0031] Specifically, such as Figure 1 and Figure 5-6As shown, the main body 1 of the connection device is an external protective structure, including a connection box 11 and a connection cover 12. The connection box 11 is a box with an open top, made of SMC composite material, with openings 13 on each of the four sides and a grounding port 15 at the bottom. The connection cover 12 is connected to the connection box 11 by a hinge and can be opened and closed. Unused openings 13 are sealed with closures 14, and the closures can be made of flexible materials such as rubber plugs. The sealed box effectively isolates rainwater, moisture and corrosive media in the soil, greatly delaying the electrochemical corrosion of the internal metal connectors. It also protects the internal connection structure from physical damage such as external impact and crushing of gravel, and prevents small animals from crawling in or mud from clogging and causing short circuits. The multi-port design 13 on the box allows the grounding grid to be introduced from different directions, adapting to complex site layouts.

[0032] Furthermore, the outer side of the connector box 11 is provided with a plurality of fixing ears 16 for fixing the connector box 11 to the ground; the fixing ears 16 are provided with fixing holes 17 for bolts to pass through.

[0033] Specifically, such as Figure 5-6 As shown, the outer side of the junction box 11 is symmetrically welded with fixing ears 16, and each fixing ear 16 has a fixing hole 17 drilled on it. During installation, four anchor bolts are used to pass through these fixing holes 17 to firmly fix the entire junction box 11 to the concrete foundation or solid soil on the ground. This solves the problem of long-term stability of the device in the soil, prevents the entire device from shifting or tilting due to soil settlement, frost heave, or external pulling, and avoids the internal electrical connection from loosening due to stress, thus ensuring the long-term reliability of the grounding grid connection.

[0034] Furthermore, the round steel clamping groove 32 is machined with anti-slip texture; the anti-slip texture is serrated, grid-like, or dotted.

[0035] Specifically, dense serrated anti-slip patterns are machined in the round steel clamping groove 32 using a carving knife or other drilling and milling processes. These patterns can also be grid-like or dotted. The anti-slip patterns effectively prevent any slight slippage of the round steel in the groove, making the connection more stable. The sharp teeth can break the oxide layer on the surface of the round steel, increasing the direct contact points between the metal substrates and significantly reducing the contact resistance.

[0036] Furthermore, the first L-shaped member 21, the second L-shaped member 22, and the first connecting member 31 are all made of aluminum alloy.

[0037] Specifically, aluminum alloys have better electrical conductivity than steel, ensuring smooth current flow; a dense oxide film forms on the surface of aluminum alloys, providing far superior resistance to atmospheric corrosion compared to ordinary carbon steel; and after heat treatment, aluminum alloys have sufficient strength to withstand the clamping force of bolts and external loads, while also facilitating on-site installation of transport boxes.

[0038] Furthermore, the connector cover 12 is provided with a silicone warning element for warning of the danger of high voltage electricity.

[0039] Specifically, a bright red or other vividly colored silicone warning element (not shown in the attached diagram) is embedded in the outer surface of the connector cover 12 using an in-mold inlay process. The element features a raised lightning bolt symbol and the words "High Voltage Danger". The bright colors and clear symbols constantly remind operators and the public of the presence of dangerous voltage, preventing accidental contact and avoiding electric shock accidents. The silicone material has good weather resistance, is not easy to fade or wear, and can maintain its warning effect for a long time.

[0040] In the specific implementation process, select a suitable location, drive the grounding angle steel vertically into the ground, leaving its upper end slightly higher than the bottom of the junction box 11, and insert the junction box 11 into the grounding angle steel from the grounding port 15 at its bottom, so that it sits on the horizontal ground. Secure the junction box 11 firmly with the fixing ears 16 on the side of the junction box 11 and the anchor bolts, thus completing the preliminary preparation work. The first connecting component 2, namely the combination of the first L-shaped part 21 and the second L-shaped part 22, is placed into the connector box 11, and simultaneously slipped onto the exposed upper end of the grounding angle steel from its angle steel receiving groove 27. The round steel to be connected is inserted into the box through the selected opening 13 on the side of the connector box 11. The second connecting component 3, namely the first connector 31, is placed into the connector box 11, so that its round steel clamping groove 32 holds the two round steels. Then, the reinforcing components, namely the four high-strength galvanized reinforcing bolts and their nuts, are sequentially passed through the first bolt hole 28 and the second bolt hole 22 on the first connecting component 2. Using a torque wrench, tighten the nuts synchronously and in stages in a diagonal sequence through the second bolt hole 33 on the connecting component 3. The clamping force after tightening makes the first connector 31, the first L-shaped component 21, and the second L-shaped component 22 tightly close together, thereby firmly pressing the grounding angle steel and the two round steel together to form an excellent electrical connection. Plug the remaining unused openings 13 with the sealing component 14, cover the connector cover 12 and lock it, and attach a conspicuous silicone warning piece to the connector cover 12 for safety warning. At this point, the installation of a safe, reliable, and fully protected grounding connection point is completed.

[0041] This utility model discloses a quick grounding device for connecting angle steel and round steel. The device uses a modular mechanical connection for installation, eliminating the need for welding. It allows for fireless operation in mountainous areas and can be installed using a regular wrench, significantly improving construction efficiency and shortening the construction period. The unique angle steel receiving groove 27 and the round steel clamping groove 32 with anti-slip texture in the first connecting component 2 and the second connecting component 3, combined with the reinforcing bolts, provide enormous contact pressure, ensuring sufficient contact area and stable electrical connection with low contact resistance. The first connecting component 2 and the second connecting component 3 are housed within the junction box. In section 11, the design of the junction box 11 and junction cover 12 encloses the electrical connection point in the inner cavity, effectively protecting it from rainwater, dust erosion, and external impact, significantly improving the device's corrosion resistance and long-term reliability. In the overall design of the junction box 11 and junction cover 12, the silicone warning piece on the junction cover 12 conspicuously indicates the danger of high voltage, enhancing the safety of the working environment. The fixing lug 16 on the junction box 11 can be firmly fixed to the ground with anchor bolts to prevent the device from shifting due to soil disturbance or external forces. At the same time, the overall detachable structure of this device facilitates the later inspection, maintenance, or replacement of the grounding grid.

[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A fast grounding device for splicing angle steel and round steel, characterized in that, Includes a connecting device body; the connecting device body is provided with: a first connecting component for connecting with the grounding angle steel, a second connecting component for connecting with the round steel, and a reinforcing component for connecting the first connecting component and the second connecting component to make the round steel and the grounding angle steel horizontally overlap. The reinforcement components are detachably connected to the first connecting component and the second connecting component, respectively.

2. A fast grounding device for splicing angle steel and round steel according to claim 1, characterized in that, The first connecting component includes: a first L-shaped component and a second L-shaped component; One end of the first L-shaped component is bent to form a first bent portion; one end of the second L-shaped component is bent to form a second bent portion; The first bent portion and the second bent portion are fixedly connected so that the first L-shaped piece and the second L-shaped piece cooperate to form a first receiving groove for accommodating one end of the grounding angle steel. The second L-shaped piece is further provided with a second receiving groove on one end near the first receiving groove for receiving the other end of the grounding angle steel; the first receiving groove and the second receiving groove are connected to form an angle steel receiving groove for receiving the entire grounding angle steel. Both the first L-shaped component and the second L-shaped component have several first bolt holes for the reinforcing component to pass through.

3. A fast grounding device for splicing angle steel and round steel according to claim 2, characterized in that, The first L-shaped part and the second L-shaped part are integrally formed.

4. A fast grounding device for splicing angle steel and round steel according to claim 2, characterized in that, The second connecting component includes a first connector; the inner side of the first connector opposite to the angle steel receiving groove is provided with a round steel clamping groove that matches the outer diameter of the round steel. The first connector has second bolt holes corresponding to a plurality of the first bolt holes for the reinforcement components to pass through.

5. A fast grounding device for splicing angle steel and round steel according to claim 4, characterized in that, The reinforcement component includes several sets of reinforcement bolts; the reinforcement bolts pass through the first connecting component and the second connecting component in sequence, so that the grounding angle steel on the first connecting component and the round steel on the second connecting component overlap horizontally.

6. A fast grounding device for splicing angle steel and round steel according to claim 1, characterized in that, The main body of the connecting device includes: a connecting box and a connecting cover adapted to the connecting box; the connecting cover can be detachably connected to the connecting box and is disposed at the opening of the connecting box; The four sides of the connector box are provided with several openings for the round steel to pass through, and the openings are all connected to the inner cavity of the connector box; each of the openings can be detachably provided with a sealing element for closing. The bottom of the junction box is provided with a grounding port for the grounding end of the grounding angle steel to extend and be grounded.

7. A fast grounding device for splicing angle steel and round steel according to claim 6, characterized in that, The outer side of the connector box is also provided with several fixing ears for fixing the connector box to the ground; the fixing ears are provided with fixing holes for bolts to pass through.

8. A fast grounding device for splicing angle steel and round steel according to claim 4, characterized in that, The groove of the round steel is machined with anti-slip texture; the anti-slip texture is serrated, grid-like or dotted.

9. A fast grounding device for splicing angle steel and round steel according to claim 4, characterized in that, The first L-shaped component, the second L-shaped component, and the first connecting component are all made of aluminum alloy.

10. A fast grounding device for splicing angle steel and round steel according to claim 6, characterized in that, The connector cover is equipped with a silicone warning piece to warn of the danger of high voltage.

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