Lightning protection discharging device with grounding function

By adding a grounding device to the lightning protection discharge device, the welding body is used to form the welding body with the angle limit shaft sleeve to achieve contact or separation of the discharge ball, which solves the grounding problem during the maintenance of the broadcasting radio station, and improves safety and equipment protection Thunder performance.

CN222365742UActive Publication Date: 2025-01-17XIANYANG GUANGTONG ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202421035220.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-13
Publication Date
2025-01-17
Estimated Expiration
2034-05-13

AI Technical Summary

Technical Problem

The existing broadcasting and transmitting stations lack convenient grounding devices during maintenance, which causes maintenance personnel to face safety threats during maintenance, and the lightning protection discharge device cannot meet the grounding needs in the event of transmitter failure.

Method used

A lightning-proof discharge device with grounding function is designed. By adding a grounding device to the lightning-proof discharge device, including a connecting plate, a bending angle limiting shaft sleeve assembly welding body and a compression spring, the first discharge ball and the second discharge are realized. The ball contacts or separates, and has quick switching of grounding and lightning protection and discharge functions.

Benefits of technology

It realizes fast and convenient internal conductor grounding switching during the transmitter's work or maintenance, improves maintenance safety, and effectively protects lightning when lightning is present, protecting equipment safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a lightning protection discharging device with a grounding function. The lightning protection discharging device comprises a lightning protection discharging device body and a box body of the lightning protection discharging device. The grounding device comprises a connecting plate; one end of the connecting plate is connected with a connector inner conductor of the lightning protection discharging device body, and the other end is fixedly connected with a first discharging ball; the grounding device further comprises a corner limiting shaft sleeve assembly welding body. The corner limiting shaft sleeve assembly welding body comprises an L-shaped fixing plate, one face of the fixing plate is fixedly connected with the side wall of the box body, and a through hole is formed in the other face of the fixing plate. A lead screw penetrates through the through hole, one end, close to the first discharge ball, of the lead screw is fixedly connected with a second discharge ball, and the second discharge ball and the first discharge ball are oppositely arranged; a limiting device is arranged between the lead screw and the fixing plate. One end of the compression spring is connected with the fixing plate, and the other end of the compression spring is connected with the second discharge ball. According to the utility model, non-grounding switching and grounding switching of the inner conductor can be rapidly and conveniently realized.
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Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of broadcast transmission stations, and in particular to a lightning protection and discharge device with a grounding function. Background Art

[0002] When the radio transmitter works, the high-frequency current output by the transmitter is transmitted to the antenna through the inner conductor of the top connector of the transmitter, and then the high-frequency current is converted into high-frequency electromagnetic waves and emitted to the sky through the antenna. At this time, there is a lightning protection discharge device at the outlet of the machine. There is a certain gap between the two discharge balls of the lightning protection discharge device. When lightning appears in the sky in summer, the lightning high voltage current will be transmitted to the inside of the machine through the antenna. At this time, the lightning high voltage will break through the air between the two discharge balls of the lightning protection discharge device and discharge, so that the lightning enters the earth, thereby protecting the safety of the machine. When the transmitter works, the high-frequency current output by the transmitter is transmitted to the antenna through the inner conductor of the top connector of the transmitter, and then the high-frequency current is converted into high-frequency electromagnetic waves and emitted to the sky through the antenna. When the transmitter fails or other reasons require maintenance of the transmitter, the inner conductor between the transmitter and the antenna must be connected to the ground. Because the antenna will receive electromagnetic waves of other frequencies in the sky and convert them into induced currents and transmit them into the transmitter through the inner conductor. It poses a threat to the personal safety of the maintenance of the machine. This requires connecting the inner conductor of the transmitter leading to the antenna to the ground, so that the high-frequency current generated by the high-frequency electromagnetic waves received by the antenna can enter the ground and be discharged.

[0003] There is no grounding device at the exit of the existing machine. When the transmitter is shut down for maintenance, the maintenance personnel use a grounding clamp connected to the earth, clamp the inner conductor of the connector at one end, and clamp the copper foil of the internal ground wire of the transmitter at the other end, so that the inner conductor of the connector is grounded to discharge the high-frequency induced current. Then the maintenance personnel can safely maintain the machine. The existing grounding method is very inconvenient to operate. It is necessary to add a set of grounding clamps to realize the grounding of the inner conductor. After the transmitter maintenance is completed, the grounding clamp needs to be disconnected from the inner conductor, and the transmitter can be turned on and work normally.

[0004] Therefore, it is necessary to improve one or more problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that this section is intended to provide background or context for the technical solutions of the utility model stated in the claims. The description herein is not admitted to be prior art by inclusion in this section. Utility Model Content

[0006] The purpose of the utility model is to provide a lightning protection and discharge device with a grounding function, thereby solving one or more problems caused by limitations and defects of related technologies at least to a certain extent.

[0007] The utility model provides a lightning protection and discharge device with a grounding function, comprising:

[0008] The main body of the lightning protection and discharge device and the box of the lightning protection and discharge device;

[0009] A grounding device, the grounding device comprises a connecting plate; one end of the connecting plate is connected to the inner conductor of the connector of the lightning protection and discharge device body, and the other end is fixedly connected to a first discharge ball;

[0010] The grounding device also includes a bend angle limit sleeve welded body; the bend angle limit sleeve welded body includes an "L"-shaped fixing plate, one side of the fixing plate is fixedly connected to the side wall of the box body, and the other side is provided with a through hole; a screw rod passes through the through hole, and a second discharge ball is fixedly connected to one end of the screw rod close to the first discharge ball, and the second discharge ball is arranged opposite to the first discharge ball; a limiting device is arranged between the screw rod and the fixing plate; a compression spring is sleeved on the screw rod, one end of the compression spring is connected to the fixing plate, and the other end is connected to the second discharge ball.

[0011] In the utility model, the connecting plate is sleeved on the inner conductor of the connector and fixed by a connecting nut.

[0012] In the utility model, the limiting device comprises a shaft sleeve fixedly connected to the fixing plate; the center of the through hole coincides with the axis of the shaft sleeve, and the diameter of the through hole is smaller than the inner diameter of the shaft sleeve.

[0013] In the utility model, a first limiting groove and a second limiting groove are axially provided on the side wall of the shaft sleeve at one end away from the fixing plate.

[0014] In the utility model, the depth difference between the second limiting groove and the first limiting groove is greater than the distance between the first discharge ball and the second discharge ball.

[0015] In the utility model, a limiting block is fixedly connected to a position on the side wall of the screw rod close to the first limiting groove and the second limiting groove.

[0016] In the utility model, an adjusting sleeve is threadedly connected to the screw rod, and the outer diameter of the adjusting sleeve is smaller than the inner diameter of the shaft sleeve; a limiting block is fixedly connected to the side wall of the adjusting sleeve near the first limiting groove and the second limiting groove.

[0017] In the utility model, an adjusting nut is threadedly connected to the screw rod, and the adjusting nut is arranged on a side of the adjusting sleeve away from the shaft sleeve.

[0018] In the utility model, a handle is connected to the end of the screw rod away from the second discharge ball.

[0019] In the utility model, the screw rod is threadedly connected with the handle.

[0020] The technical solution provided by the utility model may have the following beneficial effects:

[0021] In the utility model, by adding some parts to the lightning protection and discharge device and modifying some parts, the original lightning protection and discharge device has both the lightning protection and discharge function and the grounding function of connecting the inner conductor between the transmitter and the antenna to the ground when the transmitter fails or other reasons require maintenance of the transmitter. When the transmitter is working or maintained, the utility model can quickly and conveniently realize the non-grounding and grounding switching of the inner conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0023] Figure 1 A schematic structural diagram of a lightning protection and discharge device with a grounding function in an exemplary embodiment of the utility model is shown;

[0024] Figure 2 A schematic structural diagram of a fixing plate in a lightning protection and discharge device with a grounding function in an exemplary embodiment of the utility model is shown.

[0025] In the figure, 100 is the main body of the lightning protection discharge device; 101 is the box body; 102 is the inner conductor of the connector; 200 is the grounding device; 210 is the connecting plate; 211 is the connecting nut; 220 is the first discharge ball; 230 is the angle limit sleeve assembly welding body; 231 is the fixing plate; 232 is the through hole; 233 is the sleeve; 2331 is the first limit groove; 2332 is the second limit groove; 240 is the screw rod; 241 is the limit block; 250 is the second discharge ball; 260 is the compression spring; 270 is the adjusting sleeve; 280 is the adjusting nut; 290 is the handle. DETAILED DESCRIPTION

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present invention will be more comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0027] In addition, the accompanying drawings are only schematic illustrations of embodiments of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar parts, and their repeated descriptions will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0028] In this exemplary embodiment, a lightning protection device with a grounding function is first provided. Figure 1 As shown, including:

[0029] A lightning protection and discharge device body 100 and a lightning protection and discharge device box 101;

[0030] The grounding device 200 includes a connecting plate 210; one end of the connecting plate 210 is connected to the inner conductor 102 of the connector of the lightning protection and discharge device body 100, and the other end is fixedly connected to a first discharge ball 220;

[0031] The grounding device 200 also includes a bend limit sleeve assembly welded body 230; Figure 2 As shown, the angle limiting shaft sleeve assembly welding body 230 includes an "L"-shaped fixing plate 231, one side of the fixing plate 231 is fixedly connected to the side wall of the box body 101, and the other side is provided with a through hole 232; a screw rod 240 runs through the through hole 232, and the end of the screw rod 240 close to the first discharge ball 220 is fixedly connected to the second discharge ball 250, and the second discharge ball 250 is arranged opposite to the first discharge ball 220; a limiting device is arranged between the screw rod 240 and the fixing plate 231; a compression spring 260 is sleeved on the screw rod 240, and one end of the compression spring 260 is connected to the fixing plate 231, and the other end is connected to the second discharge ball 250. The contact or separation of the first discharge ball 220 and the second discharge ball 250 can be controlled by the limiting device and the compression spring 260. When the first discharge ball 220 and the second discharge ball 250 are in contact, the device realizes the grounding function; when the first discharge ball 220 and the second discharge ball 250 are separated, the device has the lightning protection discharge function.

[0032] In the utility model, by adding some parts to the lightning protection and discharge device and modifying some parts, the original lightning protection and discharge device has both lightning protection and discharge function. Lightning phenomenon is easy to occur in the summer sky. When lightning strikes the transmitting antenna, the lightning high voltage current will enter the connector inner conductor through the antenna and enter the machine. At this time, the lightning high voltage will break through the air between the first discharge ball 220 and the second discharge ball 250 of the utility model, so that the high voltage current generated by the lightning will contact the chassis 101 through the second discharge ball 250, the compression spring 260, the adjustment sleeve 270, the shaft sleeve 233, and the fixing plate 231 to enter the ground, thereby protecting the safety of the machine. The utility model also has the grounding function of connecting the inner conductor connected between the transmitter and the antenna to the ground when the transmitter fails or other reasons require maintenance of the inside of the transmitter. When the transmitter is working or maintained, the utility model can quickly and conveniently realize the non-grounding switching and grounding switching of the inner conductor.

[0033] Optionally, in some embodiments, the connecting plate 210 is sleeved on the inner conductor 102 of the connector and fixed by a connecting nut 211. By fixing the connecting plate 210 by the connecting nut 211, the relative position of the connecting plate 210 on the inner conductor 102 of the connector can be adjusted, thereby adjusting the distance between the first discharge ball 220 and the second discharge ball 250.

[0034] Optionally, in some embodiments, the limiting device includes a sleeve 233 fixedly connected to the fixing plate 231 ; the center of the through hole 232 coincides with the axis of the sleeve 233 , and the diameter of the through hole 232 is smaller than the inner diameter of the sleeve 233 .

[0035] Optionally, in some embodiments, a first limiting groove 2331 and a second limiting groove 2332 are axially formed on the side wall of the shaft sleeve 233 at one end away from the fixing plate 231 .

[0036] Optionally, in some embodiments, the depth difference between the second limiting groove 2332 and the first limiting groove 2331 is greater than the distance between the first discharge ball 220 and the second discharge ball 250 .

[0037] Optionally, in some embodiments, a limiting block 241 is fixedly connected to the side wall of the screw rod 240 at a position close to the first limiting groove 2331 and the second limiting groove 2332. The limiting block 241 is embedded in the first limiting groove 2331 or the second limiting groove 2332; when the limiting block 241 is embedded in the first limiting groove 2331, under the action of the limiting block 241, the compression spring 260 is compressed, and the first discharge ball 220 and the second discharge ball 250 are separated. At this time, the utility model has a lightning protection and discharge function; when the limiting block 241 is embedded in the second limiting groove 2332, the compression spring 260 is extended, and the first discharge ball 220 and the second discharge ball 250 are in contact. At this time, the utility model has a Grounding function; when the limiting block 241 is embedded in the first limiting groove 2331, the first discharge ball 220 and the second discharge ball 250 are in contact, or when the limiting block 241 is embedded in the second limiting groove 2332, the first discharge ball 220 and the second discharge ball 250 cannot be in contact, the relative position of the connecting plate 210 on the inner conductor 102 of the connector can be adjusted by the connecting nut 211, thereby adjusting the distance between the first discharge ball 220 and the second discharge ball 250, so that the first discharge ball 220 is in a suitable position.

[0038] Optionally, in some embodiments, an adjusting sleeve 270 is threadedly connected to the screw rod 240, and the outer diameter of the adjusting sleeve 270 is smaller than the inner diameter of the shaft sleeve 233; a limiting block 241 is fixedly connected to the side wall of the adjusting sleeve 270 near the first limiting groove 2331 and the second limiting groove 2332. The relative position of the adjusting sleeve 270 and the screw rod 240 can be adjusted by the adjusting sleeve 270 threadedly connected to the screw rod 240, thereby adjusting the distance between the first discharge ball 220 and the second discharge ball 250.

[0039] Optionally, in some embodiments, the screw rod 240 is further threadedly connected with an adjusting nut 280, which is disposed on a side of the adjusting sleeve 270 away from the shaft sleeve 233. The adjusting sleeve 270 is limited by the adjusting nut 280 to prevent displacement of the adjusting sleeve 270 during operation.

[0040] Optionally, in some embodiments, a handle 290 is connected to the end of the screw rod 240 away from the second discharge ball 250; the screw rod 240 is threadedly connected to the handle 290. The handle 290 works on the screw rod 240 to move the limiting block 241 between the first limiting groove 2331 and the second limiting groove 2332.

[0041] Example 1

[0042] A lightning protection and discharge device with grounding function, comprising:

[0043] A lightning protection and discharge device body 100 and a lightning protection and discharge device box 101;

[0044] The grounding device 200 includes a connecting plate 210; one end of the connecting plate 210 is connected to the inner conductor 102 of the connector of the lightning protection and discharge device body 100, and the other end is fixedly connected to a first discharge ball 220;

[0045] The grounding device 200 also includes a bend limit sleeve assembly welded body 230; Figure 2 As shown, the angle limiting shaft sleeve assembly welded body 230 includes an "L"-shaped fixing plate 231, one side of the fixing plate 231 is fixedly connected to the side wall of the box body 101, and the other side is provided with a through hole 232; a screw rod 240 passes through the through hole 232, and the end of the screw rod 240 close to the first discharge ball 220 is fixedly connected to the second discharge ball 250, and the second discharge ball 250 is arranged opposite to the first discharge ball 220; a limiting device is arranged between the screw rod 240 and the fixing plate 231; a compression spring 260 is sleeved on the screw rod 240, one end of the compression spring 260 is connected to the fixing plate 231, and the other end is connected to the second discharge ball 250.

[0046] The connecting plate 210 is sleeved on the inner conductor 102 of the connector and fixed by a connecting nut 211 .

[0047] The limiting device includes a shaft sleeve 233 fixedly connected to the fixing plate 231 ; the center of the through hole 232 coincides with the axis of the shaft sleeve 233 , and the diameter of the through hole 232 is smaller than the inner diameter of the shaft sleeve 233 .

[0048] A first limiting groove 2331 and a second limiting groove 2332 are axially formed on the side wall of the shaft sleeve 233 at one end away from the fixing plate 231 .

[0049] The depth of the first limiting groove 2331 is less than the distance between the first discharge ball 220 and the second discharge ball 250 ; the depth of the second limiting groove 2332 is greater than or equal to the distance between the first discharge ball 220 and the second discharge ball 250 .

[0050] A limiting block 241 is fixedly connected to a position on the side wall of the screw rod 240 close to the first limiting groove 2331 and the second limiting groove 2332 .

[0051] A handle 290 is connected to the end of the screw rod 240 away from the second discharge ball 250 ; the screw rod 240 is threadedly connected to the handle 290 .

[0052] Example 2

[0053] A lightning protection and discharge device with grounding function, comprising:

[0054] A lightning protection and discharge device body 100 and a lightning protection and discharge device box 101;

[0055] The grounding device 200 includes a connecting plate 210; one end of the connecting plate 210 is connected to the inner conductor 102 of the connector of the lightning protection and discharge device body 100, and the other end is fixedly connected to a first discharge ball 220;

[0056] The grounding device 200 also includes a bend limit sleeve assembly welded body 230; Figure 2 As shown, the angle limiting shaft sleeve assembly welded body 230 includes an "L"-shaped fixing plate 231, one side of the fixing plate 231 is fixedly connected to the side wall of the box body 101, and the other side is provided with a through hole 232; a screw rod 240 passes through the through hole 232, and the end of the screw rod 240 close to the first discharge ball 220 is fixedly connected to the second discharge ball 250, and the second discharge ball 250 is arranged opposite to the first discharge ball 220; a limiting device is arranged between the screw rod 240 and the fixing plate 231; a compression spring 260 is sleeved on the screw rod 240, one end of the compression spring 260 is connected to the fixing plate 231, and the other end is connected to the second discharge ball 250.

[0057] The connecting plate 210 is sleeved on the inner conductor 102 of the connector and fixed by a connecting nut 211 .

[0058] The limiting device includes a shaft sleeve 233 fixedly connected to the fixing plate 231 ; the center of the through hole 232 coincides with the axis of the shaft sleeve 233 , and the diameter of the through hole 232 is smaller than the inner diameter of the shaft sleeve 233 .

[0059] A first limiting groove 2331 and a second limiting groove 2332 are axially formed on the side wall of the shaft sleeve 233 at one end away from the fixing plate 231 .

[0060] The depth of the first limiting groove 2331 is less than the distance between the first discharge ball 220 and the second discharge ball 250 ; the depth of the second limiting groove 2332 is greater than or equal to the distance between the first discharge ball 220 and the second discharge ball 250 .

[0061] The screw rod 240 is threadedly connected with an adjusting sleeve 270 , and the outer diameter of the adjusting sleeve 270 is smaller than the inner diameter of the shaft sleeve 233 ; the limiting block 241 is fixedly connected to the side wall of the adjusting sleeve 270 near the first limiting groove 2331 and the second limiting groove 2332 .

[0062] The screw rod 240 is also threadedly connected with an adjusting nut 280 . The adjusting nut 280 is arranged on a side of the adjusting sleeve 270 away from the shaft sleeve 233 .

[0063] A handle 290 is connected to the end of the screw rod 240 away from the second discharge ball 250 ; the screw rod 240 is threadedly connected to the handle 290 .

[0064] The utility model provides a lightning protection and discharge device with grounding function, and the specific working process is as follows:

[0065] First, adjust the connecting nut 211 or the adjusting sleeve 270 to make the first discharge ball 220 and the second discharge ball 250 in a suitable position; when it is necessary to switch the function of the device, the worker holds the handle 290 and works on the handle 290 to make the limit block 241 disengage from the first limit groove 2331; twist the handle 290 to move the limit block 241 to the second limit groove 2332, release the handle 290, and under the action of the compression spring 260, the limit block 241 is embedded in the second limit groove 2332, at this time, the first discharge ball 220 and the second discharge ball 250 are in contact, and the utility model of a lightning protection and discharge device with a grounding function has a grounding function; when it is necessary to make the utility model of a lightning protection and discharge device with a grounding function have a lightning protection and discharge function, the worker also needs to hold the handle 290, embed the limit block 241 in the first limit groove 2331, and separate the first discharge ball 220 and the second discharge ball 250.

[0066] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like that may appear in the above description indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the utility model.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0068] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0071] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

Claims

1. A lightning protection and discharge device with grounding function, characterized in that: include: A lightning protection and discharge device body and a box of the lightning protection and discharge device; A grounding device, the grounding device comprising a connecting plate; one end of the connecting plate is connected to the inner conductor of the connector of the lightning protection and discharge device body, and the other end is fixedly connected to a first discharge ball; The grounding device also includes a bend angle limit shaft sleeve welded body; the bend angle limit shaft sleeve welded body includes an "L"-shaped fixing plate, one side of the fixing plate is fixedly connected to the side wall of the box body, and the other side is provided with a through hole; a screw rod passes through the through hole, and a second discharge ball is fixedly connected to one end of the screw rod close to the first discharge ball, and the second discharge ball is arranged opposite to the first discharge ball; a limiting device is arranged between the screw rod and the fixing plate; a compression spring is sleeved on the screw rod, one end of the compression spring is connected to the fixing plate, and the other end is connected to the second discharge ball.

2. A lightning protection and discharge device with grounding function according to claim 1, characterized in that: The connecting plate is sleeved on the inner conductor of the connector and fixed by a connecting nut.

3. A lightning protection and discharge device with grounding function according to claim 2, characterized in that: The limiting device includes a shaft sleeve fixedly connected to the fixing plate; the center of the through hole coincides with the axis of the shaft sleeve, and the diameter of the through hole is smaller than the inner diameter of the shaft sleeve.

4. A lightning protection and discharge device with grounding function according to claim 3, characterized in that: A first limiting groove and a second limiting groove are axially formed on the side wall of the shaft sleeve at one end away from the fixing plate.

5. A lightning protection and discharge device with grounding function according to claim 4, characterized in that: A depth difference between the second limiting groove and the first limiting groove is greater than a distance between the first discharge ball and the second discharge ball.

6. A lightning protection and discharge device with grounding function according to claim 5, characterized in that: A limiting block is fixedly connected to a position on the side wall of the screw rod close to the first limiting groove and the second limiting groove.

7. A lightning protection and discharge device with grounding function according to claim 5, characterized in that: An adjusting sleeve is threadedly connected to the screw rod, and the outer diameter of the adjusting sleeve is smaller than the inner diameter of the shaft sleeve; a limiting block is fixedly connected to the side wall of the adjusting sleeve near the first limiting groove and the second limiting groove.

8. A lightning protection and discharge device with grounding function according to claim 7, characterized in that: The screw rod is also threadedly connected with an adjusting nut, and the adjusting nut is arranged on a side of the adjusting sleeve away from the shaft sleeve.

9. A lightning protection and discharge device with grounding function according to any one of claims 1 to 8, characterized in that: A handle is connected to the end of the screw rod away from the second discharge ball.

10. A lightning protection and discharge device with grounding function according to claim 9, characterized in that: The screw rod is threadedly connected to the handle.