Lightning protection bracket suitable for waterproofing membrane roof
Patent Information
- Application Number
- CN202521789057.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-08-21
AI Technical Summary
When using metal lightning rods on conventional TPO waterproof membrane roofing, lightning strikes cause the metal rods to heat up, damaging the waterproof layer and creating leaks, thus failing to effectively waterproof the roof.
The base and support frame are made of thermoplastic polyolefin elastomer material and are seamlessly waterproofed with TPO roll material by hot air welding. Insulating pads are placed between the support frame and the lightning rod to block high temperature conduction.
It protects the integrity of the waterproof membrane, avoids the risk of leakage caused by lightning strikes, and ensures the waterproof effect.
Smart Images

Figure CN224935342U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lightning protection bracket technology, and in particular to a lightning protection bracket suitable for waterproof roll roofs. Background Technology
[0002] TPO material, short for thermoplastic polyolefin elastomer, is a high-molecular polymer material that combines the advantages of plastics (thermoplastic) and rubber (elastomer). It can be firmly connected into a whole using hot air welding technology, while also ensuring that the material has good flexibility and ductility like rubber, which can adapt to minor deformations of building structures without cracking. At the same time, it also gives the material excellent chemical corrosion resistance and UV resistance.
[0003] TPO waterproof membrane roofing is a modern roofing system. Using thermoplastic polyolefin (TPO) material and hot air welding technology, it creates a seamless, reliable, and durable waterproof layer that effectively prevents rainwater leakage and significantly reduces building energy consumption. It is one of the mainstream and preferred solutions for flat roofs today.
[0004] Conventional TPO waterproof membrane roofing uses flexible roof lightning protection brackets. The bracket portion is made of metal, and when it comes into direct contact with the metal lightning rod, a conductive path is formed. When the metal lightning rod is struck by lightning, the lightning strikes through it to the metal bracket, causing the bracket to heat up and damage the TPO waterproof membrane in contact with it. This compromises the integrity of the roof waterproofing, creating leaks and rendering the roof ineffective. Utility Model Content
[0005] In view of this, the present invention provides a lightning protection bracket suitable for waterproof membrane roofs, which at least partially solves the above problems, can prevent damage to the TPO waterproof membrane roof, protect the integrity of the roof waterproofing, and avoid the generation of leaks.
[0006] To achieve the above objectives, this utility model provides a lightning protection bracket suitable for waterproof roll roofs, including a base and a support frame. The base is made of thermoplastic polyolefin elastomer and forms a sheet-like structure. The bottom of the support frame is connected to the base, and the top of the support frame is provided with a receiving space for accommodating a lightning rod through which it passes. A pad is provided in the receiving space to insulate the lightning rod from the support frame.
[0007] According to an embodiment of the present invention, the lightning protection bracket applicable to waterproof roll roofs further includes a buckle, which is detachably disposed on the top of the support frame. The top of the support frame is provided with a first groove, and the side of the buckle facing the support frame is provided with a second groove. The portion surrounded by the second groove and the first groove forms an accommodating space to accommodate the lightning rod.
[0008] According to an embodiment of the present invention, the top of the support frame is provided with a first mating part, and the buckle is provided with a second mating part; wherein, one of the first mating part and the second mating part forms a protrusion, and the other forms a recess that fits into the protrusion, so that the buckle is detachably disposed on the support frame.
[0009] According to an embodiment of the present invention, in the above-mentioned lightning protection bracket applicable to waterproof roll roofs, the pad is disposed in the first groove and / or the second groove, so as to be placed between the lightning rod and the support frame.
[0010] According to an embodiment of the present invention, the lightning protection bracket applicable to waterproof roll roofs includes at least two pads, at least one of the pads is disposed in the first groove, and at least one other pad is disposed in the second groove.
[0011] According to an embodiment of the present invention, the lightning protection bracket applicable to waterproof membrane roofs is characterized in that the pad is interference-fitted into the first groove or the second groove.
[0012] According to an embodiment of the present invention, the support frame includes: a base plate, at least two wall panels, and a top plate. The base plate is disposed on the upper surface of the base; the at least two wall panels are symmetrically disposed at both ends of the base plate and extend obliquely upward; the top plate is disposed on the top of at least two of the wall panels and forms the first groove.
[0013] According to an embodiment of the present invention, the support frame further includes at least one rib plate disposed between at least two of the wall panels; wherein the rib plate is configured in a V-shape.
[0014] According to an embodiment of this utility model, the lightning protection bracket applicable to waterproof membrane roofing further includes a counterweight and a connector. The counterweight is disposed below the base; the connector sequentially passes through the base plate, the base, and the counterweight, and connects the base plate to the counterweight.
[0015] According to an embodiment of the present invention, the lightning protection bracket applicable to waterproof membrane roofs has symmetrically arranged notches on both sides of the base.
[0016] This utility model provides a lightning protection bracket suitable for waterproof membrane roofs. Its core feature is that the base material of the lightning protection bracket is made of thermoplastic polyolefin elastomer (TPO). This material can be seamlessly connected to the TPO roofing membrane using hot air welding technology, forming a seamless and continuous waterproof layer. This design effectively solves the problem of lightning strikes. When the lightning rod is struck by lightning, the lightning protection bracket heats up. When using traditional metal materials, the high temperature will directly damage the underlying TPO waterproof membrane, leading to waterproofing failure. However, this utility model, through homogeneous welding of the base and the membrane, and the placement of a pad between the support frame and the lightning rod, effectively blocks the conduction of high temperature, thereby protecting the integrity of the waterproof layer and fundamentally eliminating the risk of roof leaks caused by lightning strikes. Attached Figure Description
[0017] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:
[0018] Figure 1 This schematic diagram illustrates the overall structure of the lightning protection bracket for placing the lightning rod on a waterproof roll roof according to an embodiment of the present invention.
[0019] Figure 2 The diagram schematically shows a front view of a lightning protection bracket for a waterproof roll roof according to an embodiment of the present invention.
[0020] Figure Labels
[0021] 1. Base;
[0022] 11. Gap;
[0023] 2. Support frame;
[0024] 21. Base plate;
[0025] 22. Wall panel;
[0026] 23. Top slab;
[0027] 24. Ribs;
[0028] 3. Buckle;
[0029] 4. Spacer blocks;
[0030] 5. Counterweight;
[0031] 6. Connectors. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0033] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.
[0034] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.
[0035] When using expressions such as "at least one of A, B, and C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, and C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C. Similarly, when using expressions such as "at least one of A, B, or C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, or C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C.
[0036] It should also be noted that the directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," and "right," are only for reference to the directions in the accompanying drawings and are not intended to limit the scope of protection of this utility model. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted where they may cause confusion in understanding this utility model.
[0037] Figure 1 This schematic diagram illustrates the overall structure of the lightning protection bracket for placing the lightning rod on a waterproof roll roof according to an embodiment of the present invention. Figure 2 The diagram schematically shows a front view of a lightning protection bracket for a waterproof roll roof according to an embodiment of the present invention.
[0038] This utility model provides a lightning protection bracket suitable for waterproof roll roofs. For example... Figure 1As shown, the lightning arrester bracket includes a base 1 and a support frame 2. The base 1 is made of thermoplastic polyolefin elastomer and forms a sheet-like structure. The bottom of the support frame 2 is connected to the base 1, and the top of the support frame 2 is provided with a receiving space to accommodate the lightning rod through which it passes. A pad 4 is provided in the receiving space to insulate the lightning rod from the support frame 2. When the base 1 is made of thermoplastic polyolefin elastomer, it can ensure consistency with the TPO waterproof membrane roofing material. In this case, hot air welding technology can be used to form a molecular-level, seamless, integrated waterproof layer between the base 1 and the TPO waterproof membrane roofing. This ensures that the base of the lightning arrester bracket will not become a new leak point. The TPO material itself has excellent resistance to ultraviolet rays, ozone, and corrosion, and can be exposed to harsh outdoor environments (such as sun exposure, rain, snow, and extreme temperature differences) for a long time without aging, becoming brittle, or cracking. At the same time, when the metal lightning rod is struck by lightning, the current is conducted to the metal lightning arrester bracket, causing the lightning arrester bracket to heat up and damage the TPO waterproof membrane below. The base 1 protects the underlying TPO waterproof membrane, safeguarding the integrity of the roof waterproofing and preventing potential leaks. The base 1 is preferably a circular or square sheet structure with a raised center forming a flat surface. This flat surface can be square or circular and serves as the contact surface for fixing and connecting the support frame 2. This design effectively enhances the support strength of the base 1, meeting the installation and placement requirements of the product, while ensuring that rainwater flows down under gravity, preventing water accumulation on the top surface of the base 1.
[0039] A lightning protection bracket suitable for waterproof roll roofing provided according to an embodiment of this utility model also includes a clip 3. For example... Figure 1 As shown, the buckle 3 is detachably mounted on the top of the support frame 2. The top of the support frame 2 is provided with a first groove, and the side of the buckle 3 facing the support frame 2 is provided with a second groove. The portion surrounded by the second groove and the first groove forms a receiving space to accommodate the lightning rod.
[0040] In some embodiments, a groove, defined as a first groove, is provided at the top of the support frame 2, and the first groove extends through the front and rear sides of the support frame 2. The cross-sectional shape of the first groove can be an arc, a tapering U-shape, or a V-shape. Figure 2 As shown, the cross-sectional shape of the first groove can also be an inverted trapezoidal structure that is wider at the top and narrower at the bottom, with an opening formed on the top of the structure, and convex eaves extending inward on both sides of the opening.
[0041] In some embodiments, another groove is provided on the inner side of the buckle 3, i.e., the side facing the support frame 2, and is defined as the second groove. The second groove extends through the front and rear sides of the buckle 3 respectively, and the first groove and the second groove are positioned correspondingly. The enclosed portion forms a receiving space, which can be used to accommodate and limit the lightning rod. Figure 2As shown, the cross-sectional shape of the second groove can be triangular, or it can be an arc, a tapering inverted U-shape, or an inverted V-shape, and it forms an opening on the side facing the support frame 2, with protruding eaves extending inward on both sides of the opening. In some embodiments, the first groove can be provided only at the top of the support frame 2, or the second groove can be provided only on the side of the buckle 3 facing the support frame 2.
[0042] In some embodiments, the top of the support frame 2 is provided with a first mating portion, and the buckle 3 is provided with a second mating portion; wherein, one of the first mating portion and the second mating portion forms a protrusion, and the other forms a recess that engages with the protrusion, so that the buckle 3 is detachably mounted on the support frame 2. Figure 2 As shown, the top left and right ends of the support frame 2 extend horizontally outward to form protrusions, and the opposite positions of the buckle 3 contract inward to form recessed spaces, becoming recesses that fit into the protrusions. In actual construction, first, the recess at one end of the buckle 3 is engaged with the corresponding protrusion on the support frame 2 and fixed. Then, the other side of the buckle 3 is pushed, causing the protrusion on the other side of the support frame 2 to engage with the corresponding recess on the buckle 3. The structure of the first and second mating parts is not limited to the above form and can also be other forms.
[0043] In some embodiments, the support frame 2 and the clip 3 are preferably made of aluminum alloy. Aluminum alloy is lightweight and high-strength, has good corrosion resistance, and excellent processing and surface treatment properties. The lightweight frame structure design formed by the aluminum alloy support frame 2 and clip 3 meets the lightweight requirements of the lightning protection bracket while also possessing high strength to meet the durability requirements.
[0044] In related technologies, the lightning rod can be made of metal, specifically round steel or flat steel. The support frame 2 and the clip 3 are preferably made of aluminum alloy. When the lightning rod is placed in the receiving space formed by the first and second grooves, the two different metals will come into direct contact in a humid or electrolyte environment. Due to the difference in their electrode potentials, a galvanic cell will form, leading to bimetallic corrosion. During this process, the aluminum alloy support frame 2, with its lower potential, acts as the anode, accelerating corrosion. This not only damages the material integrity of the lightning arrester, significantly shortening its designed service life, but also poses a serious safety hazard due to the loss of its lightning protection function.
[0045] According to an embodiment of this utility model, a lightning protection bracket suitable for waterproof roll roofing is provided, such as... Figure 1As shown, the pad 4 is disposed in the first groove and / or the second groove to cushion the lightning rod and the support frame 2. The pad 4 is made of rubber, which has good insulation properties. The cross-sectional shape of the pad 4 can be an inverted trapezoid, a tapered U-shape, or an inverted V-shape, with the side facing the lightning rod having an arc shape to accommodate the lightning rod. When the pad 4 is disposed between the lightning rod and the support frame 2, the pad 4, with its rubber insulation properties, can separate the lightning rod passing through the middle of the lightning arrester bracket from the metal support frame 2 and the clip 3.
[0046] This design ensures that when the lightning rod is struck by lightning, the current is interrupted when it reaches the support frame 2 and the clip 3. This prevents the current from flowing to the metal support frame 2, which could overheat and damage the TPO waterproof roofing membrane it contacts. Simultaneously, it prevents direct contact between the metal support frame 2 and the lightning rod, avoiding bimetallic corrosion that could damage the lightning arrester and reduce its lifespan.
[0047] In some embodiments, a lightning protection bracket suitable for waterproof roll roofing includes at least two pads 4, with at least one pad 4 disposed in a first groove and at least one other pad 4 disposed in a second groove. Figure 1 The illustration shows a pad 4 placed in the first and second grooves respectively. However, in actual implementation, the number of pads 4 is not limited and can be one, three, or more. When a single pad 4 is used, it is an annular pad that can be fitted onto the lightning rod. Pads 4 can also be arranged in parallel or stacked vertically.
[0048] According to an embodiment of this utility model, a lightning protection bracket suitable for waterproof membrane roofing is provided, wherein the pad 4 is interference-fitted into the first groove or the second groove. Figure 2 As shown, the actual width of the pad 4 can be preset to be wider than the width of the first groove or the second groove, and the actual height can be preset to be higher than the height of the first groove or the second groove. During actual assembly, the pad 4 is pushed into the first groove or the second groove, generating forced compression between the first groove or the second groove, and is locked in the eaves of the first groove or the second groove. The elastic deformation of the material of the pad 4 is used to generate a lasting contact pressure, thereby achieving a high-strength connection without additional fasteners, avoiding damage to the integrity of the pad 4 in other mechanical assembly methods, and maintaining the integrity of the pad 4.
[0049] In some embodiments, the support frame 2 includes a base plate 21, at least two wall panels 22, and a top plate 23. For example... Figure 2As shown, a base plate 21 is disposed on the upper end surface of the base 1; at least two wall plates 22 are symmetrically disposed at both ends of the base plate 21 and extend upward at an incline; a top plate 23 is disposed on the top of at least two wall plates 22 and forms a first groove. The base plate 21 and wall plates 22 can be flat plates. The top plate 23 can be a flat plate with a triangular cross-section, including a horizontal top plate and two downwardly inclined symmetrically extending side plates. The horizontal top plate is recessed in the middle and extends through the front and back to form a first groove. The two sides of the horizontal top plate extend to the left and right, and the positions protruding from the side plates form protrusions. The frame structure formed by the base plate 21, at least two wall plates 22 and top plate 23 forms a stable and ductile overall spatial structure, which can achieve lightweight and efficient structural performance.
[0050] In some embodiments, the support frame 2 further includes at least one rib 24 disposed between at least two wall panels 22; wherein the rib 24 is configured in a V-shape. Figure 2 As shown, the rib 24, the bottom plate 21, at least two wall panels 22, and the top plate 23 form a frame structure, as follows: Figure 2 The diagram schematically shows two ribs 24 arranged between the base plate 21 and the top plate 23. However, in actual implementation, the number of ribs 24 is not limited; it can be one, three, or more, with two or more being the most preferred. The ribs 24 adopt a V-shaped structure, utilizing geometric invariance to enhance the stability of the overall structure and improve the overall load-bearing capacity of the lightning arrester bracket. The hollow design in the middle reduces weight while allowing strong winds to pass through the gaps between the triangles, reducing the lateral wind-receiving area and wind load of the lightning arrester bracket. In addition, the design also enhances the aesthetics of the lightning arrester bracket.
[0051] According to an embodiment of this utility model, a lightning protection bracket suitable for waterproof roll roofs includes a counterweight 5 and a connector 6. The counterweight 5 is disposed below the base 1; the connector 6 sequentially passes through the base plate 21, the base 1, and the counterweight 5, connecting the base plate 21 to the counterweight 5. The counterweight 5 is a block-shaped or sheet-shaped weight, which can be made of concrete or metal. When using metal, aluminum is preferred for the counterweight 5. By increasing the mass of the bottom of the lightning protection bracket, the overturning resistance is enhanced, ensuring that the lightning protection bracket remains stable under various environmental conditions (especially in windy weather), without tilting or displacement, thereby ensuring that the lightning rod is always in the designed position, effectively intercepting lightning strikes, and maximizing the safety of personnel and buildings. The connector 6 can be a bolt, with holes respectively opened on the base plate 21, the base 1, and the counterweight 5, through which the connector 6 is sequentially inserted for fixation. Meanwhile, the support frame 2 and the base 1 are rotatably connected, which can meet more application needs. For example, when the lightning rod bends or deforms, the support frame 2 can be rotated appropriately as needed to meet the application requirements during construction and installation. The support frame 2 and the base 1 can be fixedly connected, or they can be fixedly connected by screws, clips, welding, etc. The base 1 and the counterweight 5 can be bonded together.
[0052] In some embodiments, notches 11 are symmetrically arranged on both sides of the base 1. The two notches 11 are symmetrically arranged on the edge of the base 1, and the line connecting them passes through the center of the base 1. The shape of the notches 11 can be circular or pointed. The notches 11 facilitate the installation and positioning of the lightning protection bracket, making construction more convenient and efficient. In actual operation, first, a line is laid out on the pre-made TPO roofing membrane. After the line is laid out, the lightning protection bracket is placed on the positioning line. When the positioning line is exposed at both notches 11, it indicates that the lightning protection bracket is aligned with the line. Then, the base 1 of the lightning protection bracket is hot-air welded to the TPO waterproof membrane of the roof. After installing the lightning protection brackets in sequence along the positioning line, the lightning rod is installed, and then the clip 3 is installed. After the clip 3 is installed, the pad 4 inside the clip 3 clamps the lightning rod, which plays a role in isolation and insulation.
[0053] Those skilled in the art will understand that the features described in the various embodiments of this utility model can be combined and / or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments of this utility model can be combined and / or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.
[0054] The embodiments of the present invention have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of the present invention is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the present invention, and all such substitutions and modifications should fall within the scope of the present invention.
Claims
1. A lightning protection bracket suitable for waterproof roll roofing, characterized in that, include: The base (1) is made of thermoplastic polyolefin elastomer and forms a sheet structure; The support frame (2) is connected to the base (1) at its bottom. The top of the support frame (2) is provided with a receiving space for the lightning rod to pass through. A pad (4) is provided in the receiving space to insulate the lightning rod from the support frame (2). The support frame (2) includes a base plate (21) which is provided on the upper surface of the base (1). A counterweight (5) is disposed below the base (1); The connector (6) passes through the base plate (21), the base (1) and the counterweight (5) in sequence, and connects the base plate (21) and the counterweight (5).
2. The lightning protection bracket for waterproof membrane roofing according to claim 1, characterized in that, Also includes: The buckle (3) is detachably disposed on the top of the support frame (2). The top of the support frame (2) is provided with a first groove, and the side of the buckle (3) facing the support frame (2) is provided with a second groove. The second groove and the portion surrounded by the first groove form a receiving space to accommodate the lightning rod.
3. The lightning protection bracket for waterproof membrane roofing according to claim 2, characterized in that, The top of the support frame (2) is provided with a first mating part, and the buckle (3) is provided with a second mating part; In this configuration, one of the first mating part and the second mating part forms a protrusion, and the other forms a recess that engages with the protrusion, so that the buckle (3) is detachably mounted on the support frame (2).
4. The lightning protection bracket for waterproof membrane roofing according to claim 2 or 3, characterized in that, The pad (4) is disposed in the first groove and / or the second groove to be placed between the lightning rod and the support frame (2).
5. The lightning protection bracket for waterproof membrane roofing according to claim 4, characterized in that, It includes at least two pads (4), at least one of the pads (4) is disposed in the first groove, and at least another pad (4) is disposed in the second groove.
6. The lightning protection bracket for waterproof membrane roofing according to claim 5, characterized in that, The pad (4) is interference-fitted into the first groove or the second groove.
7. The lightning protection bracket for waterproof membrane roofing according to claim 2, characterized in that, The support frame (2) also includes: At least two wall panels (22) are symmetrically arranged at both ends of the base plate (21) and extend upward at an angle; The top plate (23) is provided on the top of at least two of the wall panels (22) and forms the first groove.
8. The lightning protection bracket for waterproof membrane roofing according to claim 7, characterized in that, The support frame (2) also includes: At least one rib (24) is disposed between at least two of the wall panels (22); The rib (24) is configured in a V-shape.
9. The lightning protection bracket for waterproof membrane roofing according to claim 1, characterized in that, The base (1) has symmetrical notches (11) arranged on both sides.
