Combined overvoltage protector

Through the splicing design of the mounting frame and the limiting rubber sleeve, the problem of unstable cable connection is solved, the cable is fixed and straightened, the protection of the grounding bolt is enhanced, and the stability of the cable connection and the durability of the grounding bolt are ensured.

CN223363800UActive Publication Date: 2025-09-19HEBEI SANSHI POWER EQUIP CO LTD
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Patent Information

Application Number
CN202422491788.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-15
Publication Date
2025-09-19
Estimated Expiration
2034-10-15

AI Technical Summary

Technical Problem

The existing combined overvoltage protector lacks wire fastening treatment at the cable connection, resulting in unstable cable connection, easy loosening and tangling, and the grounding bolts are exposed and prone to corrosion.

Method used

The installation frame is designed with a spliced ​​combination, combined with a limit rubber sleeve, a receiving card seat, a card slot and a limit bolt to achieve cable fixing and line alignment, and a closed protection structure is formed by installing a ring seat, a closed sleeve and a sealing ring.

Benefits of technology

It improves the stability and convenience of cable connection, prevents cables from loosening and entanglement, strengthens the shielding protection of grounding bolts, and extends their service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a combined overvoltage protector which is characterized in that the center position of the top of a lightning arrester is connected with a cable, the outer side of a connecting wire seat is detachably provided with a mounting rack, and the mounting rack is formed by splicing two groups; according to the utility model, the two mounting racks are mounted on the outer side of the connection part of the cable and the connection wire seat in a splicing combination manner, and are matched with the wedging grooves and the limiting rubber sleeves in the mounting racks, so that the cable connection part is fixed and protected, and the position of the cable is not easy to loosen after being connected, and the service life of the cable is prolonged. Meanwhile, through a bearing clamping seat, a clamping groove, an inserting clamping block and a limiting bolt, the two mounting frames can be conveniently, rapidly and conveniently assembled, the stability and tightness of the mounting frames after assembly and connection are ensured, the effect of fixing the cable by a limiting rubber sleeve is further improved, the two mounting frames can be conveniently disassembled, and the practicability is high. Therefore, the connection and disassembly processes of the cable are more convenient.
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Description

Technical Field

[0001] The utility model relates to the technical field of power equipment, in particular to a combined overvoltage protector. Background Art

[0002] The combined overvoltage protector is a high-performance overvoltage absorption device and an advanced protective device that limits lightning overvoltage and switching overvoltage. It is mainly used to protect the phase-to-phase and phase-to-ground insulation of 35KV and below high-voltage motors, transformers, shunt compensation capacitors, switches, cables, electric furnaces, power distribution equipment in power stations, rectifiers, generators, electrolyzers and other electrical equipment from damage caused by switching overvoltage and atmospheric overvoltage. It can effectively protect against both phase-to-phase and phase-to-ground overvoltages, effectively limiting the amplitude of the overvoltage to below the insulation tolerance level of the electrical equipment, protecting the insulation of the electrical equipment and maintaining its safe operation.

[0003] At present, during the use of overvoltage protectors, there is a lack of means for fastening the wires at the connection between the arrester and the cable, resulting in a lack of protection at the connection point after the cable is connected, and it is easy to become loose, affecting the stability of the connection. At the same time, the cable lacks the function of straightening the line after connection, which makes the cable easily tangled when used. Utility Model Content

[0004] The utility model provides a combined overvoltage protector, which can effectively solve the problem raised in the above background technology that during use of the current overvoltage protector, due to the lack of means for fixing and fastening the wires at the connection between the lightning arrester and the cable, the cable lacks protection at the connection point after connection, and is prone to loosening, affecting the connection stability. At the same time, the cable lacks the function of straightening the wires after connection, which makes the cable easily tangled when connected and used.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a combined overvoltage protector, comprising a base, a lightning arrester is fixedly installed at equal intervals on the top of the base, a cable is connected to the center position of the top of the lightning arrester, a connecting wire holder is connected to the connection between the top of the lightning arrester and the cable, a mounting bracket is detachably mounted on the outside of the connecting wire holder, the mounting bracket is composed of two groups of spliced ​​components, a display is mounted on one side of the top of the mounting bracket, mounting brackets are fixedly installed on the middle ends of the bottom of both sides of the base, and a grounding bolt is fixedly connected to the edge of one side of the front of the base;

[0006] The two groups of mounting brackets are provided with a fitting groove at the corresponding side edge of the two groups and the connection wire seat, and the inner side of the fitting groove is embedded with a limited rubber sleeve. The two side ends of one group of mounting brackets are fixedly connected to the receiving card seat, and the receiving card seat has a card slot inside. The two side ends of the other group of mounting brackets are provided with a plug-in card block at the corresponding position of the receiving card seat, and the plug-in card block and the receiving card seat are detachably connected by a limit bolt.

[0007] A connecting rod is connected to the edge of the mounting bracket corresponding to the cable, and one end of the connecting rod is detachably connected to the edge of the mounting bracket through a disassembly seat, and the other end of the connecting rod is fitted with a fixed sleeve, and a limiting slot is provided on the inner side of the fixed sleeve.

[0008] Preferably, the connection position between the cable and the connecting wire seat is located exactly on the inner side of the limiting rubber sleeve, and the two limiting rubber sleeves on the inner sides of the two mounting frames are spliced ​​to form a circular protective sleeve.

[0009] Preferably, the limiting bolt is connected to the edge of the receiving card seat, and the limiting bolt passes through the edge of the receiving card seat and is connected to the edge of the plug-in card block through a thread.

[0010] Preferably, the cable is fitted in the limiting card slot, and the end of the limiting card slot is provided with a smooth rounded corner.

[0011] Preferably, two mounting ring seats are symmetrically installed on the edge of the base at the outer side of the grounding bolt, the mounting ring seats are connected to the edge of the base by disassembly and assembly bolts, and the edge ends of the two mounting ring seats are connected to a sealed sleeve, the end of the sealed sleeve is provided with a sealing ring, and the inner side of the sealing ring is provided with an extrusion groove.

[0012] Preferably, the mounting ring seat, sealed sleeve and sealing ring are all semicircular, and two groups of mounting ring seats, sealed sleeves and sealing rings are combined to form a circular structure, and the connecting line of the grounding bolt fits tightly against the inner wall of the extrusion groove inside the two sealing rings.

[0013] Compared with the existing technology, the beneficial effects of the present invention are as follows: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0014] 1. By installing two mounting brackets on the outside of the connection between the cable and the connecting wire seat in a spliced ​​combination, and cooperating with the fitting groove and limiting rubber sleeve in the mounting bracket, the cable connection is fixed and protected, so that the cable is not easy to loosen after connection. At the same time, by connecting the bracket, the connecting groove, the plug-in card block and the limiting bolt, the two mounting brackets can be assembled quickly and conveniently, ensuring the stability and tightness of the mounting brackets after assembly and connection, further improving the effect of the limiting rubber sleeve on fixing the cable. In addition, this method facilitates the disassembly of the two mounting brackets, making the cable connection and disassembly process more convenient.

[0015] By arranging connecting rods, disassembly seats, fixed sleeves and limit slots on the edges of the mounting frame, the cables can be inserted into the limit slots inside the fixed sleeves when the cables are connected, thereby effectively straightening and limiting the cables, avoiding the phenomenon of cables becoming tangled and scattered after connection, and improving the convenience of cable connection and maintenance.

[0016] 2. By arranging a mounting ring seat, a sealed sleeve, a sealing ring, an extrusion groove and a disassembly bolt on the outside of the grounding bolt, a closed protection structure can be formed on the outside of the grounding bolt after the grounding bolt and the connecting wire are connected, thereby effectively improving the shielding protection effect of the outside of the grounding bolt, preventing it from being directly exposed to the outside and causing corrosion damage, and at the same time increasing its actual service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0018] In the attached figure:

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure of the wire socket of the utility model;

[0021] Figure 3 It is a structural diagram of the mounting frame of the utility model;

[0022] Figure 4 This is a schematic structural diagram of the utility model's sealed casing;

[0023] Numbers in the figure: 1. Base; 2. Lightning arrester; 3. Cable; 4. Mounting bracket; 5. Display; 6. Mounting seat; 7. Grounding bolt; 8. Connecting wire seat; 9. Fitting groove; 10. Limiting rubber sleeve; 11. Receiving card seat; 12. Card slot; 13. Plug-in card block; 14. Limiting bolt; 15. Connecting support rod; 16. Disassembly seat; 17. Fixed card sleeve; 18. Limiting card slot; 19. Mounting ring seat; 20. Sealed sleeve; 21. Sealing ring; 22. Extrusion groove; 23. Disassembly and assembly bolts. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0025] Example: Figure 1-4As shown, the utility model provides a technical solution, a combined overvoltage protector, including a base 1, a lightning arrester 2 is fixedly installed at an equidistant distance on the top of the base 1, a cable 3 is connected to the center position of the top of the lightning arrester 2, a connecting wire seat 8 is connected to the connection between the top of the lightning arrester 2 and the cable 3, a mounting bracket 4 is detachably mounted on the outside of the connecting wire seat 8, the mounting bracket 4 is composed of two groups of splicing, a display 5 is mounted on one side of the top of the mounting bracket 4, mounting brackets 6 are fixedly installed on the middle end of the bottom of both sides of the base 1, and a grounding bolt 7 is fixedly connected to the edge of one side of the front of the base 1;

[0026] The two sets of mounting brackets 4 are provided with a fitting groove 9 at the side edge corresponding to the connecting wire seat 8. The inner side of the fitting groove 9 is embedded with a connecting limiting rubber sleeve 10. The connection position of the cable 3 and the connecting wire seat 8 is just located on the inner side of the limiting rubber sleeve 10. The two limiting rubber sleeves 10 on the inner side of the two mounting brackets 4 are spliced ​​to form a circular protective sleeve, which realizes the fixing and protection of the cable 3 connection. In this way, the cable 3 is not easy to loosen after the connection. The two side ends of a set of mounting brackets 4 are fixedly connected with a receiving card seat 11, and the receiving card seat 11 is fixedly connected to the receiving card seat 11. A card slot 12 is provided inside the receiving card seat 11, and plug-in card blocks 13 are provided on both sides of the other set of mounting brackets 4 corresponding to the receiving card seat 11, and the plug-in card blocks 13 are detachably connected to the receiving card seat 11 through a limit bolt 14. The limit bolt 14 is connected to the edge of the receiving card seat 11, and the limit bolt 14 passes through the edge of the receiving card seat 11 and is connected to the edge of the plug-in card block 13 by threading, so as to facilitate the quick and convenient assembly of the two mounting brackets 4 and ensure the stability and tightness of the mounting brackets 4 after assembly and connection;

[0027] The edge of the mounting bracket 4 is connected to a connecting rod 15 corresponding to the cable 3, and one end of the connecting rod 15 is detachably connected to the edge of the mounting bracket 4 through a disassembly seat 16, and the other end of the connecting rod 15 is fitted with a fixed sleeve 17, and a limiting slot 18 is provided on the inner side of the fixed sleeve 17. The cable 3 is fitted and clamped in the limiting slot 18. The end of the limiting slot 18 is provided with a smooth rounded corner, which can enable the cable 3 to be clamped into the limiting slot 18 on the inner side of the fixed sleeve 17 when the cable 3 is connected, so as to effectively straighten and limit the cable 3.

[0028] Two mounting ring seats 19 are symmetrically installed on the edge of the base 1 at the outer side of the grounding bolt 7. The mounting ring seat 19 is connected to the edge of the base 1 by a disassembly bolt 23, and the edge ends of the two mounting ring seats 19 are connected to a sealed sleeve 20. The end of the sealed sleeve 20 is provided with a sealing ring 21, and the inner side of the sealing ring 21 is provided with an extrusion groove 22. The mounting ring seat 19, the sealed sleeve 20 and the sealing ring 21 are all semicircular, and the two groups of mounting ring seats 19, the sealed sleeve 20 and the sealing ring 21 are combined to form a circular structure. The connecting line of the grounding bolt 7 fits tightly with the inner wall of the extrusion groove 22 on the inner side of the two sealing rings 21. After the grounding bolt 7 is connected to the connecting line, a closed protection structure can be formed on the outside of the grounding bolt 7, thereby effectively improving the shielding protection effect of the outside of the grounding bolt 7.

[0029] The working principle and use process of the present invention are as follows: in actual application of the combined overvoltage protector, the base 1 and the lightning arrester 2 thereon are first installed through the mounting seats 6 at the ends of both sides of the base 1, and when the lightning arrester 2 and the cable 3 are connected, the connection between them is facilitated by the connecting wire seat 8, and after the cable 3 is connected, the two mounting brackets 4 are installed on the outside of the connection between the cable 3 and the connecting wire seat 8 in a spliced ​​combination manner, and after the two mounting brackets 4 are installed on the outside of the connection between the cable 3 and the lightning arrester 2, the fitting groove 9 and the limiting rubber sleeve 10 in the mounting bracket 4 are used to realize the fixing and protection treatment of the cable 3 connection, so that the cable 3 is not easy to be loosened after the connection;

[0030] At the same time, after the two mounting brackets 4 are connected, the two mounting brackets 4 are quickly and conveniently fixed and assembled by means of the receiving card seat 11, the card slot 12, the plug-in card block 13 and the limit bolt 14, thereby ensuring the stability and tightness of the mounting brackets 4 after assembly and connection, further improving the effect of the limit rubber sleeve 10 on fixing the cable 3, and this method facilitates the disassembly of the two mounting brackets 4, thereby making the connection and disassembly process of the cable 3 more convenient;

[0031] In addition, after the mounting frame 4 is connected and installed, the cable 3 can be inserted into the limiting groove 18 inside the fixing sleeve 17 through the connecting support rod 15, disassembly seat 16, fixing sleeve 17 and limiting groove 18 provided on the edge of the mounting frame 4, thereby effectively straightening and limiting the cable 3, avoiding the cable 3 from being tangled and scattered after connection, and improving the convenience of the cable 3 during connection and maintenance;

[0032] In addition, when the grounding bolt 7 at the edge of the base 1 is connected through a connecting wire, by arranging a mounting ring seat 19, a sealed sleeve 20, a sealing ring 21, an extrusion groove 22 and a disassembly bolt 23 on the outside of the grounding bolt 7, a closed protective structure can be formed on the outside of the grounding bolt 7 after the grounding bolt 7 and the connecting wire are connected, thereby effectively improving the shielding protection effect of the outside of the grounding bolt 7, preventing it from being directly exposed to the outside and causing corrosion damage, and at the same time increasing its actual service life.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A combined overvoltage protector, comprising a base (1), a lightning arrester (2) being fixedly mounted at equal intervals on the top of the base (1), a cable (3) being connected to the center of the top of the lightning arrester (2), and characterized in that: A connecting wire seat (8) is connected to the connection point between the top of the lightning arrester (2) and the cable (3); a mounting frame (4) is detachably mounted on the outer side of the connecting wire seat (8); the mounting frame (4) is composed of two groups of spliced ​​components; a display (5) is mounted on one side of the top of the mounting frame (4); mounting seats (6) are fixedly mounted on the middle ends of the bottoms of both sides of the base (1); and a grounding bolt (7) is fixedly connected to one side edge of the front side of the base (1); The two groups of mounting frames (4) are provided with a fitting groove (9) at the side edges corresponding to the connecting wire seat (8), and the inner side of the fitting groove (9) is embedded with a limited rubber sleeve (10). The two side edges of one group of mounting frames (4) are fixedly connected with a receiving card seat (11), and the receiving card seat (11) is provided with a card slot (12) inside. The two side edges of the other group of mounting frames (4) are provided with a plug-in card block (13) corresponding to the receiving card seat (11), and the plug-in card block (13) and the receiving card seat (11) are detachably connected through a limit bolt (14); A connecting rod (15) is connected to the edge of the mounting frame (4) corresponding to the cable (3), and one end of the connecting rod (15) is detachably connected to the edge of the mounting frame (4) through a disassembly seat (16), and the other end of the connecting rod (15) is engaged with a fixed clamping sleeve (17), and a limiting clamping groove (18) is provided on the inner side of the fixed clamping sleeve (17).

2. The combined overvoltage protector according to claim 1, characterized in that: The connection position of the cable (3) and the connecting wire seat (8) is located exactly on the inner side of the limiting rubber sleeve (10), and the two limiting rubber sleeves (10) on the inner sides of the two mounting frames (4) are spliced ​​together to form a circular protective sleeve.

3. The combined overvoltage protector according to claim 1, characterized in that: The limiting bolt (14) is connected to the edge of the receiving card seat (11), and the limiting bolt (14) passes through the edge of the receiving card seat (11) and is connected to the edge of the plug-in card block (13) through a thread.

4. The combined overvoltage protector according to claim 1, characterized in that: The cable (3) is engaged and clamped in the limiting card slot (18), and the end of the limiting card slot (18) is provided with a smooth rounded corner.

5. The combined overvoltage protector according to claim 1, characterized in that: Two mounting ring seats (19) are symmetrically mounted on the edge of the base (1) at positions outside the grounding bolt (7). The mounting ring seats (19) are connected to the edge of the base (1) via disassembly bolts (23), and the edges of the two mounting ring seats (19) are both connected to sealed sleeves (20). The ends of the sealed sleeves (20) are provided with sealing rings (21), and the inner side of the sealing rings (21) is provided with extrusion grooves (22).

6. The combined overvoltage protector according to claim 5, characterized in that: The mounting ring seat (19), the sealed sleeve (20) and the sealing ring (21) are all semicircular, and the two groups of mounting ring seats (19), the sealed sleeve (20) and the sealing ring (21) together form a circular structure, and the connecting line of the grounding bolt (7) is tightly fitted with the inner wall of the extrusion groove (22) inside the two sealing rings (21).