An electrical engineering explosion-proof lightning arrester

Abstract

The present invention discloses an electrical engineering explosion-proof lightning arrester, which relates to the technical field of lightning arresters and includes a lightning arrester body and a bearing base for mounting the lightning arrester body; further comprising: a decompression mechanism is provided inside the lightning arrester body; a heat dissipation mechanism is provided inside the bearing base, and the heat dissipation mechanism includes a heat dissipation sleeve; wherein, a positioning mechanism is provided inside the bearing base, and the positioning mechanism includes a resistance sleeve, the resistance sleeve is slid downwardly installed through the lightning arrester body, and is locked and positioned between the resistance sleeve and the bearing base, thereby achieving stable operation of the lightning arrester body. The electrical engineering explosion-proof lightning arrester conducts and releases instantaneous voltage and heat through the decompression guide cavity and the heat dissipation mechanism inside the lightning arrester body, and at the same time, the lightning arrester body and the bearing base are slidably installed, driving the positioning mechanism to lock and position the lightning arrester body and the bearing base, thereby enhancing the stability of the connection with the lightning arrester body.

Description

Technical Field

[0001] The present invention relates to the technical field of lightning arresters, in particular to an electrical engineering explosion-proof lightning arrester. Background Art

[0002] In electrical engineering, an explosion-proof lightning arrester is a specially designed lightning protection device, primarily used in flammable and explosive environments. While achieving conventional lightning protection functions, it must also meet explosion-proof safety requirements. It is a key protection device, primarily used to limit damage to power systems and electrical equipment caused by lightning or operational overvoltages. By rapidly discharging overvoltage energy, the voltage amplitude is controlled within the insulation tolerance range of the equipment, thereby preventing equipment breakdown or damage. Conventional lightning arresters are mainly installed between a triangular base and electrical equipment, with conduction achieved through the grounding component at the bottom.

[0003] The invention with announcement number CN117198666A discloses an insulating base of a lightning arrester and a lightning arrester. The insulating base of the lightning arrester can be built into the lower end flange structure of the lightning arrester. During installation, the lower end flange structure is installed on the installation base, which helps to reduce the height of the lightning arrester, reduce the weight of the lightning arrester, and improve the bending strength of the lightning arrester. At the same time, the insulation performance of the insulating base of the lightning arrester is less affected by environmental changes, and the insulation strength is high. By integrating the insulating base with the pressure release device, the structure of the lightning arrester can be simplified and the cost of the lightning arrester can be reduced.

[0004] The invention with announcement number CN113012874B discloses a lightning arrester that is easy to maintain. It solves the problem that traditional lightning arresters are generally fixed to the carrier by bolts during use. When inspection and maintenance are required, operators need to use auxiliary tools such as wrenches to disassemble them. The process is cumbersome and time-consuming, affecting maintenance efficiency. At the same time, when the carrier vibrates slightly due to the influence of nature, the installation end of the existing lightning arrester cannot effectively reduce the shock, thereby reducing its service life.

[0005] However, the following problems still exist in the process of using the above-mentioned explosion-proof lightning arrester in electrical engineering equipment: although the installation positioning between the lightning arrester and the electrical engineering equipment is achieved through the base that comes with the lightning arrester, this type of positioning method requires manual bolt tightening, and when disassembling and installing, it is also necessary to manually install the base and the lightning arrester with bolts, which increases the cumbersomeness of the operation. It will also rust due to long-term contact with rainwater, making it difficult to firmly withstand severe weather and various external force impacts. At the same time, the heat of the lightning arrester cannot be effectively dissipated, and the long-term stable and safe operation of the lightning arrester cannot be ensured.

[0006] Therefore, we propose an electrical engineering explosion-proof lightning arrester to solve the problems raised above. Summary of the Invention

[0007] The purpose of the present invention is to provide an electrical engineering explosion-proof lightning arrester to solve the problem of installation positioning between the existing lightning arrester and the electrical engineering equipment. However, this type of positioning method requires manual bolt tightening, and the base and the lightning arrester need to be manually installed with bolts during disassembly and installation, which increases the complexity of the operation. It will rust due to long-term contact with rainwater, and it is difficult to stably resist bad weather and various external force impacts. At the same time, the heat of the lightning arrester cannot be effectively dissipated, and the long-term stable and safe operation of the lightning arrester cannot be ensured.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: an electrical engineering explosion-proof lightning arrester, comprising a lightning arrester body and a bearing base for mounting the lightning arrester body;

[0009] The device further comprises: a decompression mechanism is provided inside the arrester body, and the decompression mechanism includes a decompression guide cavity, and the decompression guide cavity is used to release the internal pressure of the arrester body;

[0010] The interior of the supporting base is provided with a heat dissipation mechanism, and the heat dissipation mechanism includes a heat dissipation sleeve, and heat-conducting fan fins are evenly spaced on the left and right sides below the heat dissipation sleeve;

[0011] Among them, a positioning mechanism is provided inside the supporting base, and the positioning mechanism includes a resistance sleeve, which is installed by sliding downward through the arrester body, locking and positioning it with the supporting base to achieve stable operation of the arrester body.

[0012] Preferably, the decompression guide cavity included in the decompression mechanism is opened inside the arrester body, and the decompression guide cavity forms a pressure release channel during the operation of the arrester body to avoid the normal operation of the arrester body being affected by transient current.

[0013] Preferably, the heat dissipation mechanism includes positioning side plates, and the positioning side plates can be positioned and locked and installed on the left and right sides above the supporting base, and the upper ends of the symmetrically arranged positioning side plates are fixedly installed on the left and right ends of the heat dissipation sleeve, and the positioning side plates drive the heat dissipation sleeve to contact each other with the lightning arrester body.

[0014] Preferably, the heat dissipation mechanism includes a heat dissipation sleeve which is slidably mounted on the lower end of the arrester body, and the heat-conducting fan fins included in the heat dissipation mechanism are fixedly mounted on the inside of the positioning side plate, and the inner ends of the symmetrically distributed heat-conducting fan fins are fitted and connected to the arrester body, so that the high temperature of the arrester body is conducted to the heat-conducting fan fins and then dissipated outward.

[0015] Preferably, the heat dissipation mechanism includes a heat dissipation sleeve, and the heat dissipation sleeve is fixedly installed in the pressure reducing guide cavity inside the arrester body, and the outer wall of the heat dissipation sleeve is fixedly installed with conductive rings at equal distances, and the conductive rings extend to the inside of the valve plate provided on the outer wall of the arrester body. At the same time, the conductive rings and the valve plates correspond to each other, and the heat is promptly conducted to the bottom for dissipation to prevent high temperature from causing equipment failure of the arrester body.

[0016] Preferably, the positioning mechanism includes a guide bushing, and the guide bushing is rotatably installed at the internal center position of the supporting base, and the interference sleeve passes through the guide bushing, and a spiral guide groove is provided on the outer wall of the interference sleeve so that the spiral guide groove and the guide bushing are connected, and the guide bushing is driven to rotate clockwise and counterclockwise inside the supporting base by the lifting and lowering of the interference sleeve.

[0017] Preferably, the positioning mechanism includes a transmission snap ring, and the top end of the transmission snap ring is rotatably mounted on the bottom end of the interference sleeve, and the outer side of the lower end of the transmission snap ring is fixedly connected to the lower end of the telescopic slide rod at an equal angle, and the upper end of the telescopic slide rod is fixedly connected to the bottom end of the guide bushing, so that when the interference sleeve drives the transmission snap ring to descend, the guide bushing drives the transmission snap ring to rotate.

[0018] Preferably, the positioning mechanism includes a guide slide rod, and the guide slide rod is fixedly installed at an equal angle on the bottom end of the transmission clamp ring, and the upper end of the guide slide rod set at an equal angle extends to the interior of the transmission clamp ring, and the interior of the guide slide rod set at an equal angle is provided with a lifting slide groove.

[0019] Preferably, the positioning mechanism includes a positioning nut, and the positioning nut is slidably installed inside the interference sleeve, and the outer end of the positioning nut is slidably installed in the lifting slide groove inside the guide slide rod set at equal angles, and the positioning nut is threadedly connected to the grounding screw at the bottom end of the lightning arrester body. After the positioning nut contacts the grounding screw at the bottom end of the lightning arrester body, the lightning arrester body and the interference sleeve interfere with each other.

[0020] Preferably, insulating feet are fixedly installed at the four corners of the bottom surface of the supporting base, and insulating rubber pads are fixedly installed on the outer sides of the lower ends of the insulating feet, and the insulating feet are fixedly connected to the electrical engineering equipment through bolts in the insulating rubber pads.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the electrical engineering explosion-proof lightning arrester releases instantaneous voltage and heat through the decompression guide cavity and heat dissipation mechanism inside the lightning arrester body. At the same time, the lightning arrester body and the bearing base are slidably installed, driving the positioning mechanism to lock and position the lightning arrester body and the bearing base, thereby enhancing the stability of the connection between the lightning arrester body and the lightning arrester body. The specific contents are as follows:

[0022] 1. By installing the arrester body above the bearing base, the bearing base is installed on the electrical engineering equipment through the insulating feet at the four corners of the bottom surface. At the same time, the insulating rubber pad isolates the electrical equipment from the bearing base to form a double-layer protective insulation, which can not only ensure excellent insulation effect, but also improve the stability of the installation of the arrester body.

[0023] 2. The upward lifting range of the heat dissipation sleeve and the positioning side plate is regulated by the specifications of the lightning arrester body, so that the heat dissipation sleeve is set at the lower end of the lightning arrester body, and then the heat-conducting fan fins arranged at equal distances inside the positioning side plate are in contact with the outer wall of the lightning arrester body to assist the lightning arrester body in heat conduction.

[0024] Furthermore, when struck by lightning, the pressure of the arrester body is released by the pressure reducing guide cavity, and the conductive ring on the outer wall of the heat dissipation sleeve inside it extends to the inside of the valve plate. The heat is guided downward by the conductive ring and the heat dissipation sleeve, and dissipated to the outside through the heat-conducting fan fins, thereby preventing high temperature from causing equipment failure of the arrester body.

[0025] 3. When the arrester body is installed downward, the grounding screw at its bottom first contacts the positioning nut, and then the arrester body contacts the contact sleeve. By sliding the arrester body downward, the contact sleeve is driven to move synchronously, causing the guide bushing connected to the spiral guide groove to rotate.

[0026] Furthermore, the rotating wire bushing drives the transmission clamp connected to the telescopic slide rod, so that the transmission clamp drives the guide slide rod and the positioning nut at the inner end to rotate, and the positioning nut contacts the grounding screw at the bottom end of the lightning arrester body, and then the lightning arrester body and the supporting base are locked and connected by rotation, and contact is made through the ring piece at the bottom end of the guide slide rod to guide the lightning strike electricity downward and release it. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0028] Figure 2 This is a three-dimensional schematic diagram of the carrying base of the present invention;

[0029] Figure 3 This is a schematic diagram of the installation structure of the arrester body and the heat dissipation sleeve of the present invention;

[0030] Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0031] Figure 5 This is a schematic structural diagram of the arrester body of the present invention after being separated from the supporting base;

[0032] Figure 6 This is a schematic diagram of the guide bushing installation structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the three-dimensional cross-sectional structure of the interference sleeve of the present invention;

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of the interference sleeve of the present invention;

[0035] Figure 9 This is a schematic diagram of the three-dimensional structure of the positioning nut of the present invention;

[0036] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point B in the middle.

[0037] In the figure: 1. Lightning arrester body; 2. Bearing base; 3. Decompression guide chamber; 4. Heat dissipation sleeve; 5. Heat-conducting fan fins; 6. Resistance sleeve; 7. Positioning side plate; 8. Heat dissipation sleeve; 9. Conducting ring; 10. Guide bushing; 11. Spiral guide groove; 12. Transmission clamp; 13. Telescopic slide rod; 14. Guide slide rod; 15. Lifting slide groove; 16. Positioning nut; 17. Insulation base; 18. Insulation rubber pad. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] See also Figures 1-10 , the present invention provides the following technical solutions:

[0040] Example 1: In order to solve the problems existing in the use of existing explosion-proof lightning arresters in electrical engineering, this embodiment discloses the following technical solutions: an explosion-proof lightning arrester for electrical engineering, comprising an arrester body 1, and a supporting base 2 for installing the arrester body 1; a decompression mechanism is provided inside the arrester body 1, and the decompression mechanism includes a decompression guide cavity 3, which is used to release the internal pressure of the arrester body 1; the decompression guide cavity 3 included in the decompression mechanism is opened inside the arrester body 1, and the decompression guide cavity 3 forms a pressure release channel during the operation of the arrester body 1, so as to avoid the normal operation of the arrester body 1 being affected by transient current.

[0041] A heat dissipation mechanism is provided inside the supporting base 2, and the heat dissipation mechanism includes a heat dissipation sleeve 4, and heat-conducting fan fins 5 are evenly spaced on the left and right sides below the heat dissipation sleeve 4; the heat dissipation mechanism includes a positioning side plate 7, and the positioning side plate 7 can be positioned and locked and installed on the left and right sides above the supporting base 2, and the upper ends of the symmetrically arranged positioning side plates 7 are fixedly installed on the left and right ends of the heat dissipation sleeve 4, and the positioning side plates 7 drive the heat dissipation sleeve 4 to contact each other with the lightning arrester body 1.

[0042] The heat dissipation mechanism includes a heat dissipation sleeve 4 which is slidably mounted on the lower end of the arrester body 1, and the heat dissipation mechanism includes a heat-conducting fan 5 which is fixedly mounted on the inside of the positioning side plate 7, and the inner ends of the symmetrically distributed heat-conducting fan fins 5 are fitted and connected to the arrester body 1, so that the high temperature of the arrester body 1 is conducted to the heat-conducting fan fins 5 and then dissipated outward; the heat dissipation mechanism includes a heat dissipation sleeve 8, and the heat dissipation sleeve 8 is fixedly mounted in the pressure reducing guide cavity 3 inside the arrester body 1, and the outer wall of the heat dissipation sleeve 8 is fixedly mounted with a conduction ring piece 9 at equal distances, and the conduction ring piece 9 extends to the inside of the valve piece set on the outer wall of the arrester body 1, and at the same time, the conduction ring piece 9 and the valve piece correspond to each other, so that the heat is conducted to the bottom for dissipation in time, thereby preventing the high temperature from causing equipment failure of the arrester body 1.

[0043] like Figure 3-Figure 4 As shown, when the arrester body 1 is installed with the supporting base 2, the arrester body 1 is inserted into the inside of the heat dissipation sleeve 4 above the supporting base 2, and then the heat dissipation sleeve 4 and the positioning side plate 7 are manually lifted upward according to the specifications of the arrester body 1, so that the heat dissipation sleeve 4 is sleeved on the lower end of the arrester body 1, and then the heat-conducting fan fins 5 equidistantly arranged inside the positioning side plate 7 are in contact with the outer wall of the arrester body 1 to assist the arrester body 1 in heat conduction.

[0044] Furthermore, during operation, the arrester body 1 releases instantaneous voltage through the pressure reducing guide cavity 3 provided inside the arrester body 1, which can not only ensure excellent insulation effect, but also conduct the heat inside the arrester body 1 to the heat dissipation sleeve 8. The conductive ring pieces 9 arranged at equal distances on the outer wall of the heat dissipation sleeve 8 extend to the inside of the valve piece, so that the heat is guided downward through the conductive ring pieces 9 and the heat dissipation sleeve 8, so that the fitted heat-conducting fan fins 5 dissipate the heat to the outside, thereby preventing high temperature from causing equipment failure of the arrester body 1.

[0045] Example 2: In order to solve the problems existing in the use of explosion-proof lightning arresters in existing electrical engineering, this embodiment discloses the following technical solution, wherein a positioning mechanism is provided inside the supporting base 2, and the positioning mechanism includes a resistance sleeve 6, which is installed by sliding downward through the lightning arrester body 1, locking it and the supporting base 2 in position, thereby realizing stable operation of the lightning arrester body 1.

[0046] The positioning mechanism includes a guide bushing 10, and the guide bushing 10 is rotatably installed at the internal center position of the supporting base 2, and the interference sleeve 6 passes through the guide bushing 10, and a spiral guide groove 11 is opened on the outer wall of the interference sleeve 6, so that the spiral guide groove 11 is connected to the guide bushing 10, and the lifting and lowering of the interference sleeve 6 drives the guide bushing 10 to rotate clockwise and counterclockwise inside the supporting base 2; the positioning mechanism includes a transmission snap ring 12, and the top end of the transmission snap ring 12 is rotatably installed on the bottom end of the interference sleeve 6, and the outer side of the lower end of the transmission snap ring 12 is fixedly connected to the lower end of the telescopic slide rod 13 at an equal angle, and the upper end of the telescopic slide rod 13 is fixedly connected to the bottom end of the guide bushing 10, so that when the interference sleeve 6 drives the transmission snap ring 12 to descend, the guide bushing 10 drives the transmission snap ring 12 to rotate.

[0047] The positioning mechanism includes a guide slide 14, and the guide slide 14 is fixedly installed at an equal angle on the bottom end of the transmission retaining ring 12, and the upper end of the guide slide 14 set at an equal angle extends to the inside of the transmission retaining ring 12, and the inside of the guide slide 14 set at an equal angle is provided with a lifting slide 15; the positioning mechanism includes a positioning nut 16, and the positioning nut 16 is slidably installed in the inside of the interference sleeve 6, and the outer end of the positioning nut 16 is slidably installed in the lifting slide 15 inside the guide slide 14 set at an equal angle, and the positioning nut 16 is threadedly connected to the grounding screw at the bottom end of the lightning arrester body 1. After the positioning nut 16 contacts the grounding screw at the bottom end of the lightning arrester body 1, the lightning arrester body 1 and the interference sleeve 6 conflict with each other.

[0048] like Figure 6-Figure 7 As shown, when the arrester body 1 is installed between the supporting base 2, the grounding screw installed at the bottom end of the arrester body 1 first contacts the positioning nut 16 inside the interference sleeve 6, and then the lower end of the arrester body 1 and the interference sleeve 6 above the arrester body 1 interfere with each other, and at the same time, the arrester body 1 is pressed downward to drive the interference sleeve 6 to slide downward synchronously. The interference sleeve 6 is spirally connected to the guide bushing 10 through the spiral guide groove 11 opened on the outside, so that the descending interference sleeve 6 drives the guide bushing 10 to rotate, thereby providing driving force for the positioning mechanism to lock and position the arrester body 1.

[0049] like Figures 8-10As shown, in the process of the arrester body 1 driving the interference sleeve 6 to slide downward, the guide bushing 10 drives the telescopic slide rod 13 set at an equal angle at the lower end to rotate, and then the telescopic slide rod 13 drives the transmission clamping ring 12 fixedly connected at the bottom end, so that the transmission clamping ring 12 rotates at the bottom end of the interference sleeve 6 to prevent dislocation and offset. At the same time, the guide slide rod 14 fixedly installed at the lower end of the transmission clamping ring 12 drives the positioning nut 16 to rotate synchronously through the lifting slide groove 15 opened inside, so that the descending arrester body 1 drives the grounding screw at the bottom end to be threadedly connected with the positioning nut 16, and then the positioning nut 16 moves upward along the lifting slide groove 15 opened by the guide slide rod 14, thereby enhancing the stability of the connection with the arrester body 1, and at the same time contacts the ring piece at the bottom end of the guide slide rod 14 to guide the lightning strike electricity downward and release it.

[0050] Example 3: In order to solve the problems existing in the use of explosion-proof lightning arresters in existing electrical engineering, this embodiment discloses the following technical solution: insulating base feet 17 are fixedly installed at the four corners of the bottom surface of the supporting base 2, and insulating rubber pads 18 are fixedly installed on the outer side of the lower end of the insulating base feet 17, and the insulating base feet 17 are fixedly connected to the electrical engineering equipment through bolts in the insulating rubber pads 18.

[0051] like Figure 1-Figure 2 、 Figure 5 As shown, when the supporting base 2 is installed, insulating rubber pads 18 are installed inside the insulating feet 17 at the four corners of the bottom surface. After the bolts are passed through the insulating rubber pads 18, the supporting base 2 is locked between the insulating feet 17 and the electrical engineering equipment to improve the stability of the lightning arrester body 1 during use.

[0052] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electrical engineering explosion-proof lightning arrester, comprising a lightning arrester body (1) and a bearing base (2) for mounting the lightning arrester body (1); It is characterized by: Also includes: A decompression mechanism is provided inside the arrester body (1), and the decompression mechanism includes a decompression guide cavity (3), and the decompression guide cavity (3) is used to release the internal pressure of the arrester body (1); A heat dissipation mechanism is provided inside the supporting base (2), and the heat dissipation mechanism includes a heat dissipation sleeve (4), and heat-conducting fan wings (5) are provided at equal distances on the left and right sides below the heat dissipation sleeve (4); A positioning mechanism is provided inside the supporting base (2), and the positioning mechanism includes a resisting sleeve (6). The resisting sleeve (6) is installed by sliding downwards through the arrester body (1), and is locked and positioned between the supporting base (2), thereby achieving stable operation of the arrester body (1); The positioning mechanism includes a guide bushing (10), and the guide bushing (10) is rotatably mounted at the inner center position of the bearing base (2), and the interference sleeve (6) passes through the guide bushing (10), and the outer wall of the interference sleeve (6) is provided with a spiral guide groove (11), so that the spiral guide groove (11) and the guide bushing (10) are connected, and the guiding bushing (10) is driven to rotate clockwise and counterclockwise inside the bearing base (2) by the lifting and lowering of the interference sleeve (6); The positioning mechanism includes a transmission snap ring (12), and the top end of the transmission snap ring (12) is rotatably mounted on the bottom end of the interference sleeve (6), and the outer side of the lower end of the transmission snap ring (12) is fixedly connected to the lower end of the telescopic slide rod (13) at an equal angle, and the upper end of the telescopic slide rod (13) is fixedly connected to the bottom end of the guide bushing (10), so that when the interference sleeve (6) drives the transmission snap ring (12) to descend, the guide bushing (10) drives the transmission snap ring (12) to rotate; The positioning mechanism includes a guide slide (14), and the guide slide (14) is fixedly installed at an equal angle on the bottom end of the transmission clamp (12), and the upper end of the guide slide (14) arranged at an equal angle extends to the inside of the transmission clamp (12), and the inside of the guide slide (14) arranged at an equal angle is provided with a lifting slot (15); The positioning mechanism includes a positioning nut (16), and the positioning nut (16) is slidably installed inside the abutting sleeve (6), and the outer end of the positioning nut (16) is slidably installed in the lifting slide groove (15) inside the guide slide rod (14) set at an equal angle, and the positioning nut (16) is threadedly connected to the grounding screw at the bottom end of the lightning arrester body (1). After the positioning nut (16) contacts the grounding screw at the bottom end of the lightning arrester body (1), the lightning arrester body (1) and the abutting sleeve (6) are in contact with each other.

2. The electrical engineering explosion-proof lightning arrester according to claim 1, characterized in that: The decompression guide cavity (3) included in the decompression mechanism is opened inside the arrester body (1), and the decompression guide cavity (3) forms a pressure release channel during the operation of the arrester body (1), thereby preventing the normal operation of the arrester body (1) from being affected by transient current.

3. The electrical engineering explosion-proof lightning arrester according to claim 1, characterized in that: The heat dissipation mechanism includes a positioning side plate (7), and the positioning side plate (7) can be positioned and locked and installed on the left and right sides above the supporting base (2), and the upper ends of the symmetrically arranged positioning side plates (7) are fixedly installed on the left and right ends of the heat dissipation sleeve (4), and the positioning side plates (7) drive the heat dissipation sleeve (4) and the lightning arrester body (1) to contact each other.

4. The electrical engineering explosion-proof lightning arrester according to claim 3, characterized in that: The heat dissipation mechanism includes a heat dissipation sleeve (4) which is slidably sleeved on the lower end of the arrester body (1), and the heat dissipation mechanism includes heat-conducting fins (5) which are fixedly installed inside the positioning side plate (7), and the inner ends of the symmetrically distributed heat-conducting fins (5) are fitted and connected to the arrester body (1), so that the high temperature of the arrester body (1) is conducted to the heat-conducting fins (5) and then dissipated outwards.

5. The electrical engineering explosion-proof lightning arrester according to claim 3, characterized in that: The heat dissipation mechanism includes a heat dissipation sleeve (8), and the heat dissipation sleeve (8) is fixedly installed in the pressure reducing guide cavity (3) inside the arrester body (1), and the outer wall of the heat dissipation sleeve (8) is fixedly installed with a conductive ring piece (9) at equal distances, and the conductive ring piece (9) extends to the inside of the valve piece provided on the outer wall of the arrester body (1), and at the same time, the conductive ring piece (9) and the valve piece correspond to each other, and the heat is promptly conducted to the bottom for dissipation, thereby preventing the high temperature from causing equipment failure of the arrester body (1).

6. The electrical engineering explosion-proof lightning arrester according to claim 1, characterized in that: Insulating feet (17) are fixedly mounted at the four corners of the bottom surface of the supporting base (2), and insulating rubber pads (18) are fixedly mounted on the outer sides of the lower ends of the insulating feet (17), and the insulating feet (17) are fixedly connected to the electrical engineering equipment via bolts in the insulating rubber pads (18).

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