Lightning arrester with lead

Abstract

The utility model discloses a lightning arrester with a lead in the technical field of lightning arresters, which comprises a lightning arrester main body, the lightning arrester main body comprises a resistor disc core body, the bottom end of the resistor disc core body is provided with a screw hole, a screw rod is screwed in the screw hole, the outside of the screw rod is screwed with a nut a and a nut b, the outside of the screw rod is sleeved with an anti-drop cylinder at the lower end of the nut b, and the anti-drop cylinder is sleeved with a lead. Three anti-falling rods are assembled on the outer wall of the anti-falling cylinder and distributed in a rectangular shape, spiral teeth are arranged on the outer wall of each anti-falling rod, the spiral teeth are meshed with the outer wall of the screw rod, a transition connector is assembled at the upper end of the interior of the resistor disc core body, a fixing body is assembled at the top end of the resistor disc core body, and an inserting body is assembled at the upper end of the fixing body; a cable is assembled in the plugging body, and a tinned copper wiring nose is assembled at the end part of the cable; the lightning arrester with the lead is high in appearance quality, simple to install and high in electrical performance, the insulation performance of the lightning arrester during installation is effectively improved, and the safety of the lightning arrester in the using process is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning arresters, in particular to a lightning arrester with a conducting wire. Background Art

[0002] A lightning arrester is an electrical device that can release lightning or the overvoltage energy of the power system operation, protect electrical equipment from instantaneous overvoltage hazards, and cut off the continuous current to prevent the system from grounding short circuit. Lightning arresters can effectively protect power equipment. Once abnormal voltage occurs, the lightning arrester will take effect and play a protective role. When the voltage value returns to normal, the lightning arrester will quickly return to its original state to ensure normal power supply to the system. At present, according to the installation method of the lightning arrester, it is divided into: station-type lightning arrester and line-type lightning arrester;

[0003] However, in actual use, both station-type lightning arresters and line-type lightning arresters have the same shortcomings during installation. It is necessary to purchase the materials for high-voltage end connection and the corresponding transition connection fittings at the same time as the lightning arrester, which invisibly increases the cost and technical limitations. After years of experience in selling lightning arresters, many project users are unable to provide accurate technical briefings in a timely manner when ordering lightning arresters, resulting in the inability to install and use the lightning arresters normally after they arrive. Customizing the connecting wires, copper bars and transition fittings according to the connection conditions has incurred a lot of additional costs, delaying the normal completion of the project, so it is necessary to improve the existing technology. Utility Model Content

[0004] The purpose of the utility model is to provide a lightning arrester with a conductor to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lightning arrester with a conductor, comprising a lightning arrester main body, the lightning arrester main body comprising a resistor core, a screw hole is provided at the bottom end of the resistor core, and a screw is screwed in the screw hole, a nut a and a nut b are screwed on the outside of the screw, an anti-slip cylinder is sleeved on the lower end of the nut b on the outside of the screw, three anti-slip rods are provided on the outer wall of the anti-slip cylinder, the three anti-slip rods are distributed in a rectangular shape, and spiral teeth are provided on the outer wall of each anti-slip rod, and the spiral teeth are meshed with the outer wall of the screw, an intermediate connector is provided on the inner upper end of the resistor core, a fixed body is provided on the top end of the resistor core, a plug-in body is provided on the upper end of the fixed body, a cable is provided in the plug-in body, a copper tinned terminal nose is provided on the end of the cable, and a silicone jacket is provided on the outside of the resistor core.

[0006] Preferably, an annular groove is formed at the bottom end of the nut b, and the top ends of the three anti-slip rods are arranged in the annular groove.

[0007] Preferably, an internal thread is provided on the inner wall of the anti - detachment cylinder, and the internal thread is matched with the external thread of the screw rod. A rotating cylinder is sleeved on the lower end of the outside of the anti - detachment cylinder.

[0008] Preferably, a flat washer and a spring washer are sleeved on the screw rod between nut a and nut b.

[0009] Preferably, an electrode embedding groove is provided inside the fixing body. The top end of the over - connection head extends into the electrode embedding groove. An electrode insertion block is installed at the bottom end of the plug - in body. The end of the cable is connected to the electrode insertion block, and the electrode insertion block is inserted into the electrode embedding groove.

[0010] Preferably, a matching groove is provided at the end of the electrode insertion block, and an electrode piece is installed inside the matching groove. The top end of the over - connection head contacts the electrode piece.

[0011] Preferably, inclined convex blocks are provided on both side walls of the electrode insertion block, and inclined grooves are provided on both side walls of the electrode embedding groove.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The lightning arrester with a lead - wire type has a reasonable structural design;

[0013] The structure of the present utility model is simple, with high appearance quality, simple installation, high electrical performance, effectively improving the insulation performance during the installation of the lightning arrester and greatly enhancing the safety during the use of the lightning arrester. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is an internal schematic diagram of the present utility model;

[0016] Figure 3 is a schematic diagram of the screw rod of the present utility model;

[0017] Figure 4 is a cross - sectional view of the fixing body and the plug - in body of the present utility model.

[0018] In the figure: 1. Lightning arrester main body; 2. Screw rod; 3. Fixing body; 4. Plug - in body; 5. Cable; 6. Copper - plated tin terminal; 7. Electrode embedding groove; 8. Electrode insertion block; 9. Electrode piece; 10. Matching groove; 11. Inclined convex block; 12. Inclined groove; 13. Over - connection head; 14. Resistance - chip core; 15. Silicone outer sleeve; 16. Nut a; 17. Flat washer; 18. Spring washer; 19. Nut b; 20. Annular groove; 21. Anti - detachment cylinder; 22. Rotating cylinder; 23. Internal thread; 24. Spiral tooth; 25. Anti - detachment rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0021] In this technical solution, a lightning arrester with a wire includes a lightning arrester main body 1. The lightning arrester main body 1 includes a resistor chip core 14. A screw hole is opened at the bottom end of the resistor chip core 14, and a screw rod 2 is screwed in the screw hole. A nut a 16 and a nut b 19 are screwed on the outside of the screw rod 2. An anti-detachment cylinder 21 is sleeved on the outside of the screw rod 2 below the nut b 19. Three anti-detachment rods 25 are assembled on the outer wall of the anti-detachment cylinder 21. The three anti-detachment rods 25 are distributed in a rectangle. A spiral tooth 24 is opened on the outer wall of each anti-detachment rod 25, and the spiral tooth 24 meshes with the outer wall of the screw rod 2. An over-connection head 13 is assembled at the upper end inside the resistor chip core 14. A fixing body 3 is assembled at the top end of the resistor chip core 14. A plug-in body 4 is assembled at the upper end of the fixing body 3. A cable 5 is assembled in the plug-in body 4. A copper-plated tin terminal 6 is assembled at the end of the cable 5.

[0022] In this technical solution, it includes an M10*55 screw rod 2, two M10 stainless steel nuts a 16 and nut b 19, a φ10 spring washer 18, two φ10 flat washers 17, a silicone rubber outer sleeve 15, a resistor chip core 14, an M10 over-connection head 13, a 500mm long 4-square silicone cable 5, and a copper-plated tin terminal 6. The M10*55 screw rod 2 and the resistor chip core 14 are fixed through the M10 screw hole on the resistor chip core. The stainless steel nuts a 16 and nut b 19, the stainless steel φ10 spring washer 18, and the φ10 flat washer 17 are screwed on the M10*55 screw rod 2. The anti-detachment cylinder 21 is installed on the outside of the screw rod 2. The anti-detachment rod 15 is meshed with the screw rod 2. The plug-in body 4 and the fixing body 3 are connected, so that the cable 5 is connected to the filtering connection head 13. The connection between the 4-square silicone cable 5 and the copper-plated tin terminal 6 is fixed through a crimping process. The crimped cable is installed on the resistor chip core through the threaded hole on the resistor chip core. Finally, the resistor chip core with the screw rod and the over-connection head connected is placed in a mold, and silicone rubber is added for molding to press the silicone rubber outer sleeve 5.

[0023] In some technical solutions, referring to Figures 1-4 , an annular groove 20 is opened at the bottom end of the nut b 19, and the top ends of the three anti-detachment rods 25 are arranged in the annular groove 20;

[0024] In this technical solution, the end of the anti-loosening rod 25 is placed in the annular groove 20, thereby fastening the nut b 19.

[0025] In some technical solutions, referring to Figures 1-4 , an internal thread 23 is provided on the inner wall of the anti-loosening cylinder 21. The internal thread 23 is matched with the external thread of the screw rod 2. A rotating cylinder 22 is sleeved on the lower end of the outside of the anti-loosening cylinder 21;

[0026] In this technical solution, the anti-loosening cylinder 21 is installed outside the screw rod 2 by means of thread matching.

[0027] In some technical solutions, referring to Figures 1-4 , an electrode embedding groove 7 is provided inside the fixed body 3. The top end of the over-connection head 13 extends into the electrode embedding groove 7. An electrode plug 8 is installed at the bottom end of the plug-in body 4. The end of the cable 5 is connected to the electrode plug 8. The electrode plug 8 is plugged into the electrode embedding groove 7;

[0028] In this technical solution, the over-connection head 13 is connected to the cable 5 by inserting the electrode plug 8 into the electrode embedding groove 7.

[0029] In some technical solutions, referring to Figures 1-4 , a fitting groove 10 is provided at the end of the electrode plug 8. An electrode piece 9 is installed inside the fitting groove 10. The top end of the over-connection head 13 is in contact with the electrode piece 9;

[0030] In this technical solution, the over-connection head 13 is connected to the cable 5 through the conductivity of the electrode piece 9.

[0031] In some technical solutions, referring to Figures 1-4 , inclined convex blocks 11 are provided on both side walls of the electrode plug 8, and inclined concave grooves 12 are provided on both side walls of the electrode embedding groove 7.

[0032] Working principle: The lightning arrester with a lead is more convenient and simple to install on the line or in the complete set of switchgear, different from the ordinary lightning arrester where both the upper and lower ends are connected by screw rods. The lightning arrester with a lead is fixed on the line cross-arm support or in the cabinet body through the lower screw rod. The upper end uses a 4-square connecting wire, which can be directly connected to the high-voltage end or the high-voltage end copper bar in the cabinet through the wire end nose without separately purchasing and customizing the connecting wire or copper bar, reducing the additional budget expenditure. Since the lightning arrester with a lead is formed by one-time die pressing with a mold, the wire and the resistor chip core are pressed into one body, while solving the sealing performance of the lightning arrester, it also increases the insulation performance of the lightning arrester, optimizes the installation distance of the equipment on the line or in the cabinet, greatly reduces the material cost, improves the electrical safety, and solves the worries.

[0033] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0034] Although the present utility model has been described above with reference to the embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present utility model can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A lightning arrester with a conductor, comprising a lightning arrester body (1), characterized in that: The arrester body (1) comprises a resistor core (14), a screw hole is provided at the bottom end of the resistor core (14), a screw rod (2) is screwed in the screw hole, a nut a (16) and a nut b (19) are screwed in the outside of the screw rod (2), an anti-slip cylinder (21) is sleeved at the lower end of the nut b (19) at the outside of the screw rod (2), and the outer wall of the anti-slip cylinder (21) is equipped with three anti-slip rods (25), the three anti-slip rods (25) are distributed in a rectangular shape, and the outer wall of each anti-slip rod (25) is A spiral tooth (24) is provided, and the spiral tooth (24) is meshed with the outer wall of the screw rod (2); the upper end of the inner part of the resistor core (14) is equipped with a transition connector (13); the top end of the resistor core (14) is equipped with a fixed body (3); the upper end of the fixed body (3) is equipped with a plug-in body (4); the plug-in body (4) is equipped with a cable (5); the end of the cable (5) is equipped with a copper tinned terminal lug (6); the outside of the resistor core (14) is equipped with a silicone jacket (15).

2. A lightning arrester with a conductor according to claim 1, characterized in that: The bottom end of the nut b (19) is provided with an annular groove (20), and the top ends of the three anti-slip rods (25) are arranged in the annular groove (20).

3. A lightning arrester with a conductor according to claim 1, characterized in that: The inner wall of the anti-slip cylinder (21) is provided with an internal thread (23), and the internal thread (23) matches with the external thread of the screw rod (2). The outer lower end of the anti-slip cylinder (21) is sleeved with a rotating cylinder (22).

4. A lightning arrester with a conductor according to claim 1, characterized in that: The outside of the screw rod (2) is provided with a flat washer (17) and a spring washer (18) between the nut a (16) and the nut b (19).

5. The lightning arrester with a conductor according to claim 1, characterized in that: An electrode embedding groove (7) is provided inside the fixed body (3), the top end of the transition connector (13) extends into the electrode embedding groove (7), an electrode plug block (8) is installed at the bottom end of the plug-in body (4), the end of the cable (5) is connected to the electrode plug block (8), and the electrode plug block (8) is plugged into the electrode embedding groove (7).

6. A lightning arrester with a conductor according to claim 5, characterized in that: The end of the electrode plug (8) is provided with a matching groove (10), an electrode sheet (9) is installed inside the matching groove (10), and the top end of the transition connector (13) is in contact with the electrode sheet (9).

7. A lightning arrester with a conductor according to claim 6, characterized in that: Both side walls of the electrode plug block (8) are provided with oblique protrusions (11), and both side walls of the electrode embedding groove (7) are provided with oblique grooves (12).

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