Grounding clamping device, system and method of lightning protection system

Abstract

The invention discloses a grounding clamping device, system and method of a lightning protection system, the grounding clamping device comprises a joint body and a bolt, the joint body is internally provided with an inner hole, the inner hole comprises a first accommodating space, a second accommodating space and an abdicating space, and the first accommodating space, the second accommodating space and the abdicating space are communicated with one another; the first containing space is located between the second containing space and the receding space, a first arc face is formed on the inner side face of the first containing space, the first conductor penetrates through the first containing space and abuts against the first arc face, a second arc face is formed on the inner side face of the second containing space, and the second conductor penetrates through the second containing space and abuts against the second arc face. The periphery of the joint body is provided with a screw hole part, the screw hole part is arranged along the radial direction of the inner hole, the bolt is in threaded connection with the screw hole part, and the end of the bolt extends into the inner hole to clamp and fix the conductor I and the conductor II; the close sides of the first conductor and the second conductor abut against each other to form an abutting part. According to the invention, the conductor can be stably connected and clamped.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lightning protection system, more particularly, to a grounding clamping device of lightning protection system, and also relates to a grounding clamping system of lightning protection system, and a grounding clamping method of lightning protection system. BACKGROUND

[0002] In the lightning protection system, it is usually necessary to connect and clamp between multiple conductors, so that multiple components in the lightning protection system can be connected and conducted with each other, and lightning protection conduction can be realized, thereby preventing or reducing the harm of lightning to personnel, buildings, equipment and information systems.

[0003] In the process of grounding connection of the lightning protection system, two different conductors need to be connected by a clamping clamp. One of the two conductors is a relatively thick steel conductor, and the other is a relatively thin copper conductor. The two conductors are arranged in the clamping clamp, and then clamped and fixed by a bolt, so that the two conductors can be clamped and fixed to be connected.

[0004] However, the inner hole of the clamping clamp is usually circular, and the two conductors are arranged in the inner hole of the clamping clamp and clamped and fixed by the bolt only, which causes the conductor and the clamping clamp to be loose, affecting the clamping stability of the two conductors.

[0005] Therefore, a new scheme is needed to solve this problem. SUMMARY

[0006] The present application aims to overcome the shortcomings of the prior art and provide a grounding clamping device, system and method of lightning protection system.

[0007] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a grounding clamping device of lightning protection system is used to clamp conductor one and conductor two. The cross section of the conductor one and the conductor two is circular, and the outer diameter of the conductor one is larger than that of the conductor two. The grounding clamping device comprises a connector body and a bolt. An inner hole is arranged in the connector body. The inner hole comprises a receiving space one, a receiving space two and a space for accommodating. The receiving space one, the receiving space two and the space for accommodating are in communication with each other. The receiving space one is located between the receiving space two and the space for accommodating. The inner side of the receiving space one is formed with a circular arc surface one. The conductor one is arranged in the receiving space one and in contact with the circular arc surface one. The inner side of the receiving space two is formed with a circular arc surface two. The conductor two is arranged in the receiving space two and in contact with the circular arc surface two. A threaded hole part is formed on the outer periphery of the connector body. The threaded hole part is arranged along the radial direction of the inner hole. The bolt is threadedly connected to the threaded hole part. The end of the bolt extends into the inner hole to clamp and fix the conductor one and the conductor two. The side close to each other of the conductor one and the conductor two is pressed to form an abutting portion.

[0008] The application is further provided with a circular arc surface one of the accommodating space one with an axis one; a circular arc surface two of the accommodating space two with an axis two.

[0009] The application is further provided with the axis one and the axis two arranged in parallel, the radius of the circular arc surface one is R1, the radius of the circular arc surface two is R2, the distance between the axis one and the axis two is L; L < R1 + R2; the difference between L and R1 + R2 is a, the range of the difference a is 0 < a < 0.1 mm.

[0010] The application is further provided with the axis one and the axis two arranged in parallel, the radius of the circular arc surface one is R1, the radius of the circular arc surface two is R2, the distance between the axis one and the axis two is L; L < R1 + R2; the difference between L and R1 + R2 is a, the range of the difference a is 0 < a < 0.1 mm.

[0011] The application is further provided with the axis one and the axis two arranged in parallel, the radius of the circular arc surface one is R1, the radius of the circular arc surface two is R2, the distance between the axis one and the axis two is L; L < R1 + R2; the difference between L and R1 + R2 is a, the range of the difference a is 0 < a < 0.1 mm.

[0012] The application is further provided with the axis one and the axis two arranged in parallel, the radius of the circular arc surface one is R1, the radius of the circular arc surface two is R2, the distance between the axis one and the axis two is L; L < R1 + R2; the difference between L and R1 + R2 is a, the range of the difference a is 0 < a < 0.1 mm.

[0013] The application is further provided with the axis one and the axis two arranged in parallel, the radius of the circular arc surface one is R1, the radius of the circular arc surface two is R2, the distance between the axis one and the axis two is L; L < R1 + R2; the difference between L and R1 + R2 is a, the range of the difference a is 0 < a < 0.1 mm.

[0014] The application is further provided with the axis one and the axis two arranged in parallel, the radius of the circular arc surface one is R1, the radius of the circular arc surface two is R2, the distance between the axis one and the axis two is L; L < R1 + R2; the difference between L and R1 + R2 is a, the range of the difference a is 0 < a < 0.1 mm.

[0015] The application is further provided with the axis one and the axis two arranged in parallel, the radius of the circular arc surface one is R1, the radius of the circular arc surface two is R2, the distance between the axis one and the axis two is L; L < R1 + R2; the difference between L and R1 + R2 is a, the range of the difference a is 0 < a < 0.1 mm.

[0016] The application is further provided with the axis one and the axis two arranged in parallel, the radius of the circular arc surface one is R1, the radius of the circular arc surface two is R2, the distance between the axis one and the axis two is L; L < R1 + R2; the difference between L and R1 + R2 is a, the range of the difference a is 0 < a < 0.1 mm.

[0017] The application is further provided with the axis one and the axis two arranged in parallel, the radius of the circular arc surface one is R1, the radius of the circular arc surface two is R2, the distance between the axis one and the axis two is L; L < R1 + R2; the difference between L and R1 + R2 is a, the range of the difference a is 0 < a < 0.1 mm.

[0018] The conductor one and the conductor two are mutually crossed, the inclination angle of the crossing is b, one side of the conductor one towards the conductor two is supported by the abutting part formed by the superposition, and the other side is supported by the support point position one of the intermediate main body and the support point position two of the two overhangs.

[0019] The application further provides a grounding clamping system of a lightning protection system, comprising a conductor one, a conductor two, and a plurality of groups of the grounding clamping device as described above; the conductor one and the conductor two are clamped by the grounding clamping device, the grounding clamping devices are arranged along the length direction of the conductor one, and the deflection of the conductor one is formed between adjacent grounding clamping devices.

[0020] The application further provides a grounding clamping method of a lightning protection system, which clamps and fixes the conductor one and the conductor two by using the grounding clamping device.

[0021] In summary, the application has the following beneficial effects:

[0022] In the scheme, the outer diameter of the conductor one and the inner diameter of the circular arc surface one are matched with each other, when the conductor one is clamped, the conductor one can be arranged in the accommodating space one, the outer peripheral surface of the conductor one is abutted and pressed against the circular arc surface one to form abutting support, and an arc-shaped contact surface is formed at the position where they are in contact with each other, which can keep stable support of clamping, and can form a larger arc-shaped contact surface between the conductor one and the joint body, thereby improving the conductivity efficiency of the joint body and the conductor one. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a clamping perspective view of the grounding clamping device of the lightning protection system in embodiment one;

[0024] Figure 2 It is a perspective view of the grounding clamping device of the lightning protection system in embodiment one;

[0025] Figure 3 It is a clamping sectional view of the grounding clamping device of the lightning protection system in embodiment one;

[0026] Figure 4 It is a sectional view of the grounding clamping device of the lightning protection system in embodiment one;

[0027] Figure 5 It is a sectional view of the grounding clamping device of the lightning protection system in embodiment two;

[0028] Figure 6 It is a clamping perspective view of the grounding clamping device of the lightning protection system in embodiment two; Figure 1 ;

[0029] Figure 7The clamping three-dimensional structure of the grounding clamping device for a lightning protection system in Embodiment 2. Figure 2 ;

[0030] Figure 8 This is a front view of the grounding clamping device of a lightning protection system in Embodiment 2;

[0031] Figure 9 This is a side view of a grounding clamping device for a lightning protection system according to Embodiment 3;

[0032] Figure 10 This is a schematic diagram of the grounding clamping device of a lightning protection system in Embodiment 3;

[0033] Figure 11 This is a cross-sectional view of a grounding clamping device for a lightning protection system in Embodiment 3. Figure 1 ;

[0034] Figure 12 This is a cross-sectional view of a grounding clamping device for a lightning protection system in Embodiment 3. Figure 2 ;

[0035] Figure 13 This is a schematic diagram of the structure of each support point of conductor 2 8 in Example 3;

[0036] Figure 14 This is a cross-sectional view of a grounding clamping device for a lightning protection system in Embodiment 3. Figure 3 ;

[0037] Figure 15 This is a three-dimensional schematic diagram of a grounding clamping device for a lightning protection system according to Embodiment 3;

[0038] Figure 16 This is a three-dimensional schematic diagram of a grounding clamping system for a lightning protection system in Embodiment 4. Figure 1 ;

[0039] Figure 17 This is a three-dimensional schematic diagram of a grounding clamping system for a lightning protection system in Embodiment 4. Figure 2 .

[0040] Reference numerals: Grounding clamping device 100; Connector body 1; Screw hole 11; Reinforcing part 12; Bolt 2; End 21; Screw head 22; Inner hole 3; Accommodation space one 31; Axis one 310; Arc surface one 311; Clearance space 32; Accommodation space two 33; Axis two 330; Arc surface two 331; Arc transition surface 36; Cutting groove 4; Middle body 5; Support point one 51; Outer side 6; Root 61; Suspended part 62; Support point two 63; Conductor one 7; Conductor two 8; Abutment part 9. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] This embodiment discloses a grounding clamping device for a lightning protection system, referring to... Figures 1-4 As shown, via grounding clamping device

[0044] 100 can clamp and fix conductor 7 and conductor 8 in the lightning protection system, and connect the two conductors to each other;

[0045] Both conductor 7 and conductor 8 have circular cross-sections, with conductor 7 having a larger outer diameter than conductor 8. Specifically, conductor 7, with its larger diameter, is made of steel or copper-clad steel; conductor 8, with a slightly smaller diameter, is made of copper and is slightly softer than conductor 7.

[0046] The grounding clamping device includes a connector body 1 and a bolt 2. The connector body 1 has a ring-shaped structure with an inner hole 3. The inner hole 3 is divided into multiple spatial regions, specifically including a first receiving space 31, a second receiving space 33, and a clearance space 32. The first receiving space 31, the second receiving space 33, and the clearance space 32 are interconnected, with the first receiving space 31 located between the second receiving space 33 and the clearance space 32. The first receiving space 31 is used to place conductor 7. The inner diameter of the second receiving space 33 is smaller than that of the first receiving space 31, and it is used to place conductor 8. The clearance space 32 is wider than the first receiving space 31, allowing for easier placement of conductors 7 and 8.

[0047] An arc surface 311 is formed on the inner side of the accommodating space 31. The arc surface 311 is divided into two parts and is arranged in a roughly opposite manner. Moreover, the two parts of the arc surface 311 are arranged in a concentric structure.

[0048] The outer diameter of conductor 7 is compatible with the inner diameter of arc surface 311. When conductor 7 is clamped, it can be inserted into the receiving space 31. The outer circumference of conductor 7 and arc surface 311 are pressed together to form abutment support. An arc-shaped contact surface is formed at the contact position between the two, which can maintain stable support of clamping and form a large arc-shaped contact surface between conductor 7 and connector body 1, which can improve the conductivity of connector body 1 and conductor 7.

[0049] The inner diameter of the receiving space 2 33 is smaller than that of the receiving space 1 31, and an arc surface 2 331 is formed on the inner side of the receiving space 2 33. The conductor 2 8 is inserted into the receiving space 2 33, and the outer diameter of the conductor 2 8 is adapted to the inner diameter of the arc surface 2 331. When the conductor 2 8 is clamped, it can fit and press against the arc surface 2 331 to form abutment support, and an arc-shaped contact surface is formed at the contact position between the two to maintain stable clamping support. It can also form a large arc-shaped contact surface between the conductor 2 8 and the connector body 1, which can improve the conductivity of the connector body 1 and the conductor 2 8.

[0050] An arc-shaped transition surface 36 is formed between the first arc surface 311 and the second arc surface 331, so that the two form a relatively smooth arc transition at the transition point, maintaining the relative smoothness of the inner surface of the inner hole 3.

[0051] A threaded hole 11 is formed on the outer periphery of the connector body 1, and the threaded hole 11 is arranged radially along the inner hole 3. The bolt 2 is threadedly connected to the threaded hole 11. One end of the bolt 2 is a threaded end, and the other end is a threaded head connected to a tool. During installation, the end 21 of the bolt 2 extends into the inner hole 3 and can press against the surface of conductor 7, applying a force in the direction of conductor 8, thereby clamping and fixing conductor 7 and conductor 8.

[0052] Furthermore, after conductor 7 and conductor 8 are clamped together, the sides of conductor 7 and conductor 8 that are close to each other press against each other to form a contact portion 9. Between conductor 7 and conductor 8, not only can the connector body 1 provide support and conduction, but the contact portion 9 between conductor 7 and conductor 8 can also provide support and conduction, which not only maintains the connection stability of the two but also improves their conductivity.

[0053] For the first accommodating space 31, its internal arc surface 311 has an axis 310; for the second accommodating space 33, its internal arc surface 331 has an axis 330.

[0054] In this embodiment, axis 1 310 and axis 2 330 are arranged parallel to each other.

[0055] The radius of arc surface 1 (311) is R1, the radius of arc surface 2 (331) is R2, and the distance between axis 1 (310) and axis 2 (330) is L. To ensure stable support for conductors 1 (7) and 2 (8) during clamping, the distance L should be slightly less than the sum of radii R1 and R2, i.e., L0. <R1+R2。

[0056] The difference between L and R1+R2 is a, and the range of the difference a is 0 < a < 0.1 mm. The difference a can be designed according to the specific dimensions of the first conductor 7 and the second conductor 8. After they are overlapped with each other, a certain pressing force can be formed, that is, an abutting portion 9 is formed, which can tightly fix the first conductor 7 and the second conductor 8 to each other and form a certain conduction contact surface.

[0057] Moreover, since the texture of the second conductor 8 is relatively soft, after they are extruded, appropriate-sized deformation can occur at the contact position of the second conductor 8 to ensure the stability of the pressing force between them.

[0058] Embodiment 2

[0059] This embodiment discloses a grounding clamping device for a lightning protection system. Based on Embodiment 1, it will be further described in detail by referring to Figures 5-8 for details.

[0060] In this embodiment, the difference from Embodiment 1 is that the first axis 310 and the second axis 330 are not parallel to each other and are skew lines.

[0061] In this embodiment, the radius of the first arc surface 311 is R1, and the radius of the second arc surface 331 is R2. The distance between the first axis 310 and the second axis 330 is L, that is, a common perpendicular is made between the first axis 310 and the second axis 330. The common perpendicular is perpendicular to both the first axis 310 and the second axis 330 at the same time. The length of the line segment corresponding to the common perpendicular between the first axis 310 and the second axis 330 is the distance L between the first axis 310 and the second axis 330.

[0062] In this embodiment, L < R1+R2, the difference between L and R1+R2 is a, and the range of a is 0 < a < 0.1 mm. The difference a can be designed according to the specific dimensions of the first conductor 7 and the second conductor 8. After they are overlapped with each other, a certain pressing force can be formed, that is, an abutting portion 9 is formed, which can tightly fix the first conductor 7 and the second conductor 8 to each other and form a certain conduction contact surface.

[0063] In this embodiment, the common perpendicular of the first axis 310 and the second axis 330 is coaxially arranged with the screw hole portion 11. When the bolt 2 is screwed into the screw hole portion 11, it will also be in a coaxial state with the common perpendicular of the first axis 310 and the second axis 330. The bolt 2 can apply a pressing force to the upper surface of the first conductor 7.

[0064] Referring to Figure 5 as shown, the plane where the axis of the screw hole portion 11 and the first axis 310 are located is P. In Figure 5The middle plane P is in a vertical state and coincides with the second axis 330. The second axis 330 is inclined to the plane P, and the inclination angle is b. The range of the inclination angle b is 3° < a < 8°. Specifically, the inclination amplitude of the inclination angle b can be specifically selected according to the relative diameters of the two conductors.

[0065] In this embodiment, due to a certain deviation and inclination in the orientations of the first conductor 7 and the second conductor 8, the two conductors will actually be in a cross-shaped state rather than a parallel fitting state. The abutting portion 9 is the cross-abutting point of the two conductors. Through the cross form, the abutting positions of the first conductor 7 and the second conductor 8 can be concentrated at one place, and this abutting position is the abutting position of the end 21 of the bolt 2, which can ensure the stability and strength performance of the abutting clamping of the first conductor 7 and the second conductor 8, and can always maintain the clamping stability after a long-term connection.

[0066] Embodiment III

[0067] This embodiment discloses a grounding clamping device for a lightning protection system. On the basis of Embodiment II, it will be further described in detail by referring to Figures 9-15 as follows.

[0068] Referring to Figure 9 As shown, on the outer periphery of the joint body 1, corresponding to one side of the accommodation space II 33, two cutting grooves 4 are provided. Referring to the direction in the figure, the two cutting grooves 4 are arranged in the vertical up-and-down direction. They are processed by cutting. The cutting grooves 4 are cut from the lower side of the joint body 1 upwards, that is, the lower ends of the cutting grooves 4 are in an open state, and the upper ends extend to approximately the boundary position between the accommodation space I 31 and the让位 space 32. And during the processing of the cutting grooves 4, the plane where the cutting grooves 4 are located is perpendicular to the first axis 310, and the cutting width of the cutting grooves 4 is 0.3 - 1.0 mm, which can separate the lower side position of the joint body 1.

[0069] Referring to Figure 9 As shown, the two cutting grooves 4 divide the joint body 1 into a middle main body 5 and outer portions 6 on both sides. The width of the outer portions 6 is 1 mm - 3 mm. Along the direction of the first axis 310, the shapes of the middle main body 5 and the outer portions 6 are substantially the same, and both can form inner holes through which the first conductor 7 and the second conductor 8 can pass and can play a role in clamping and fixing the first conductor 7 and the second conductor 8.

[0070] Referring to Figure 9 、 Figure 10As shown, one side of the outer portion 6 is integrally connected to the connector body 1 to form a root 61; the other side of the outer portion 6 is separated from the connector body 1 to form a suspended portion 62. A support point 51 is formed on the side of the connector body 1 facing the inner hole 3, and a support point 63 is formed on the side of the outer portion 6 facing the inner hole 3; both support point 51 and support point 63 are partial positions of the arc surface 331 of the accommodating space 33, which can play a role in supporting and limiting the conductor 8.

[0071] During the processing, a tool is embedded in the cutting groove 4 to bend the outer part 6. By expanding the cutting groove 4, the outer part 6 can deflect around the root 61 at an angle of approximately 5°-10°. After bending, the cutting groove 4 will form an inclined structure.

[0072] During the bending of the outer part 6, the outer part 6 can deflect around the root 61, the suspended part 62 of the outer part 6 bends away from the joint body 1, and the second support point 63 is closer to the receiving space 31 than the first support point 51.

[0073] Reference Figure 12 As shown, three support points will be formed on the lower side of conductor 2 8, namely the middle support point 51 and the two side support points 63, which can stably support conductor 2 8.

[0074] Conductor 7 and conductor 8 intersect each other at an angle of b. The side of conductor 7 facing conductor 8 is supported by the abutment part 9 formed at the overlap; the other side is supported by the support point 51 of the middle body 5 and the support point 63 of the two suspended parts 62.

[0075] Reference Figure 12 As shown, during the clamping process of conductor 7 and conductor 8, conductor 7 and conductor 8 are first inserted into the receiving space 31 and receiving space 33 respectively. The lower side of conductor 7 is supported by the arc surfaces 311 on both sides, while the upper side is supported by the end 21 of bolt 2, which can stably support conductor 7 and form three clamping support points.

[0076] Conductor 2 8 is located below conductor 1 7. The upper side of conductor 2 8 roughly intersects with conductor 1 7, and the intersecting abutment part 9 achieves pressure clamping and limiting. On the lower side of conductor 2 8, it is supported by the lower surface of conductor 2 8 and the arc surface 2 331 of connector body 1, which serves as the support point 1 51 of the middle body 5.

[0077] Furthermore, due to the deflection adjustment of the outer part 6, the support point 63 at the suspended part 62 will have a slight displacement towards the bolt 2; the conductor 8 will experience relative deformation displacement in multiple directions, as shown in the figure. Figure 14As shown, along the length of conductor 7, conductor 8 forms a slight tilt and deflection relative to conductor 7; refer to Figure 13 As shown, along the length of conductor 28, both sides of conductor 28 will bend slightly toward conductor 17, thus making conductor 28 form a state similar to a spiral wrapped around conductor 17.

[0078] Furthermore, the suspended portion 62 of the outer part 6 can form support points 63, and a slight height difference will be formed between support point 51 and the two support points 63, with the middle support point 51 being slightly lower and the two on both sides being slightly higher. When the bolt 2 applies clamping force, the clamping pressure can be transmitted downward along the conductor 7 and the abutment 9, and clamping pressure can be applied to the conductor 8 at the abutment 9. In the initial stage of clamping and fixing, the conductor 8 is first supported by the support points 63 on both sides, and a certain degree of suspension will be formed between the conductor 8 and support point 51. Then, as the bolt 2 is pressed down, the clamping force of the bolt 2 on the conductor 7 will gradually increase. The clamping force at the contact portion 9 will also increase, causing a slight deformation of the conductor 2 8 and the outer portions 6 on both sides. The surface of the conductor 2 8 will undergo a slight concave deformation, while the suspended portion 62 will undergo a slight elastic deformation. This allows the surface of the conductor 2 8 to press against and adhere to the support point 51 of the middle body 5. The conductor 2 8 can be clamped and fixed from top to bottom by the support point 51 of the middle body 5 and the contact portion 9. In addition, the suspended portions 62 on both sides provide auxiliary support for the conductor 2 8, forming two support points 63. Along the length of the conductor 2 8, the conductor 2 8 can be supported by multiple clamping support points, thereby improving the clamping stability of the conductor 2 8.

[0079] Moreover, due to the slight elastic deformation of the suspended part 62, the elastic deformation will exert a certain elastic pressure on the conductor 8, thereby achieving the effect of preventing loosening and improving the strength and stability of the clamping of conductor 7 and conductor 8.

[0080] Example 4

[0081] This embodiment discloses a grounding clamping system for a lightning protection system, based on Embodiment 3, and further referring to... Figures 16-17 Please provide a detailed explanation.

[0082] In this embodiment, the grounding clamping system includes conductor 1 7, conductor 2 8, and several sets of grounding clamping devices as in embodiment 3. Generally, at least three sets of grounding clamping devices are provided.

[0083] The axis of conductor 7 is arranged in a straight line, while conductor 8 is placed side by side with conductor 7. Conductors 7 and 8 are clamped together by a grounding clamping device.

[0084] Reference Figure 17 As shown, the three sets of grounding clamping devices are arranged along the length of conductor 7, and the adjacent grounding clamping devices form a deflection with conductor 7 as the straight line. Specifically, with conductor 7 as the axis, the middle grounding clamping device 100 is in a straight position, while the left grounding clamping device 100 deflects counterclockwise around conductor 7, and the right grounding clamping device 100 deflects clockwise around conductor 7. The three sets of grounding clamping devices are arranged at uniform intervals.

[0085] The grounding clamping device can clamp conductor 7 and conductor 8. Due to the clamping action, conductor 8 will be inclined relative to conductor 7 and will also have a slight bend. With the clamping of conductor 7 and conductor 8 by the three sets of grounding clamping devices, conductor 8 will form a roughly spiral structure on the outside of conductor 7, thereby maintaining the clamping stability between conductor 7 and conductor 8 and avoiding the situation of relative looseness between conductor 7 and conductor 8.

[0086] In addition, this embodiment also discloses a grounding clamping method for a lightning protection system, which uses the grounding clamping device as in Embodiment 3, and can clamp and fix conductor 7 and conductor 8 through three sets of grounding clamping devices.

[0087] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A grounding clamping device for a lightning protection system, used to clamp conductor one (7) and conductor two (8), wherein the cross-sections of conductor one (7) and conductor two (8) are circular, and the outer diameter of conductor one (7) is larger than that of conductor two (8); characterized in that, The grounding clamping device includes a joint body (1) and a bolt (2). An inner hole (3) is provided in the joint body (1). The inner hole (3) includes a first accommodating space (31), a second accommodating space (33) and a relief space (32). The first accommodating space (31), the second accommodating space (33) and the relief space (32) are interconnected. The first accommodating space (31) is located between the second accommodating space (33) and the relief space (32). An arc surface one (311) is formed on the inner side surface of the first accommodating space (31). The first conductor (7) is disposed in the first accommodating space (31) and abuts against the arc surface one (311). An arc surface two (331) is formed on the inner side surface of the second accommodating space (33). The second conductor (8) is disposed in the second accommodating space (33) and abuts against the arc surface two (331). A threaded hole portion (11) is provided on the outer circumference of the joint body (1). The threaded hole portion (11) is arranged along the radial direction of the inner hole (3). The bolt (2) is threadedly connected to the threaded hole portion (11). The end (21) of the bolt (2) extends into the inner hole (3) to clamp and fix the first conductor (7) and the second conductor (8). The adjacent sides of the first conductor (7) and the second conductor (8) are pressed against each other to form a contact portion (9).

2. The grounding clamping device for a lightning protection system according to claim 1, characterized in that, The arc surface one (311) of the first accommodating space (31) has an axis one (310); the arc surface two (331) of the second accommodating space (33) has an axis two (330).

3. The grounding clamping device for a lightning protection system according to claim 2, characterized in that, The axis one (310) and the axis two (330) are arranged parallel to each other. The radius of the arc surface one (311) is R1, the radius of the arc surface two (331) is R2, and the distance between the axis one (310) and the axis two (330) is L; L < R1 + R2; the difference between L and R1 + R2 is a, and the range of the difference a is 0 < a < 0.1 mm.

4. The grounding clamping device for a lightning protection system according to claim 3, characterized in that, The axis one (310) and the axis two (330) are not parallel to each other and are skew lines. The radius of the arc surface one (311) is R1, the radius of the arc surface two (331) is R2, and the distance between the axis one (310) and the axis two (330) is L; L < R1 + R2; the difference between L and R1 + R2 is a, and the range of a is 0 < a < 0.1 mm.

5. A grounding clamping device for a lightning protection system according to claim 4, characterized in that, The common perpendicular of the axis one (310) and the axis two (330) is coaxially arranged with the threaded hole portion (11); the plane where the axis of the threaded hole portion (11) and the axis one (310) are located is P, and the axis two (330) is inclined to the plane P, and the inclination angle is b, and the range of the inclination angle b is 3° < a < 8°.

6. The grounding clamping device for a lightning protection system according to claim 4, characterized in that, On the outer circumference of the joint body (1), corresponding to one side of the second accommodating space (33), two cutting grooves (4) are provided; the plane where the cutting grooves (4) are located is perpendicular to the axis one (310), and the cutting width of the cutting grooves (4) is 0.3 - 1.0 mm. The two cutting grooves (4) divide the joint body (1) into a middle main body (5) and outer parts (6) on both sides. The width of the outer parts (6) is 1 mm - 3 mm.

7. A grounding clamping device for a lightning protection system according to claim 6, characterized in that, One side of the outer part (6) is integrally connected to the connector body (1) to form a root (61); the other side of the outer part (6) is separated from the connector body (1) to form a suspended part (62). The connector body (1) has a support point one (51) on the side facing the inner hole (3), and the outer side (6) has a support point two (63) on the side facing the inner hole (3). By expanding the cutting groove (4), the outer part (6) deflects around the root (61), the suspended part (62) of the outer part (6) bends away from the connector body (1), and the second support point (63) is closer to the first receiving space (31) than the first support point (51).

8. A grounding clamping device for a lightning protection system according to claim 6, characterized in that, The conductor one (7) and conductor two (8) intersect each other at an angle of b. The side of the conductor one (7) facing the conductor two (8) is supported by the abutment part (9) formed at the overlap; the other side is supported by the support point one (51) of the middle body (5) and the support point two (63) of the two suspended parts (62).

9. A grounding clamping system for a lightning protection system, characterized in that, It includes conductor one (7), conductor two (8), and several sets of grounding clamping devices as described in any one of claims 5-8; the conductor one (7) and conductor two (8) are clamped together by the grounding clamping devices, the grounding clamping devices are arranged along the length direction of conductor one (7), and a deflection with conductor one (7) as the straight line is formed between adjacent grounding clamping devices.

10. A grounding clamping method for a lightning protection system, characterized in that, The grounding clamping device as described in any one of claims 1-8 is used to clamp and fix conductor one (7) and conductor two (8).

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