An insulating mounting device applied to a lightning arrester box

Abstract

The application discloses an insulating mounting device applied to a lightning arrester box, and relates to the technical field of box-type lightning arresters, which comprises an external box body fixedly connected with offshore wind power equipment, a bracket fixedly arranged at the inner bottom end of the external box body, a guide groove arranged at the top end of the bracket, a protruding knot arranged at the upper end of the bracket, and a horizontal insertion slot arranged in the protruding knot. The gas rod in the locking pin assembly is driven to act by external environmental temperature change, the thermal expansion and cold contraction of metal parts are automatically compensated, dynamic adjustment and long-term maintenance of locking force are realized, the connection loosening problem caused by temperature difference is fundamentally solved, the installation and dismounting process is greatly simplified through insertion alignment and single rotation of the hexagonal table vertical support fixing, operation and maintenance efficiency is improved, and the device is particularly suitable for offshore high-altitude operation. Meanwhile, a double mechanical fixing mode of upper locking and lower supporting is adopted, three-dimensional constraint is formed, and the overall rigidity and anti-vibration performance are obviously superior to those of the traditional single-point fixing mode.

Description

Technical Field

[0001] This invention relates to the technical field of box-type surge arresters, and in particular to an insulating installation device applied to surge arrester enclosures. Background Technology

[0002] Offshore wind power equipment is exposed to harsh marine environments with high salt spray, high humidity, and drastic temperature differences between day and night for extended periods, posing a serious challenge to the reliability of its critical electrical equipment, such as surge arresters.

[0003] Traditional surge arrester installation methods mostly use direct bolt fastening or simple snap-fit ​​structures. Existing surge arrester fasteners are prone to stress relaxation and gaps at connection points due to repeated thermal expansion and contraction caused by environmental temperature differences. This can lead to loosening of the fasteners. Furthermore, existing devices generally lack the ability to automatically maintain the preset locking force, making it difficult to ensure the long-term stability of the connection under material creep, thus posing a hidden danger to the safe operation of the equipment. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing insulation installation devices applied to surge arrester enclosures, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is how to solve the problem of existing surge arrester fasteners, whose internal components are prone to stress relaxation and gaps at the connection points due to repeated thermal expansion and contraction caused by environmental temperature differences, leading to loosening of the fasteners.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an insulation installation device for a surge arrester enclosure, comprising: an outer enclosure, which is fixedly connected to offshore wind power equipment; a bracket, which is fixedly disposed at the bottom of the inner side of the outer enclosure, with a guide groove at the top of the bracket and a protrusion at the upper end of the bracket, with a transverse slot inside the protrusion and a locking groove perpendicular to the transverse slot at the top of the protrusion; a support portion, with two sets of support portions fixedly disposed inside the locking groove and respectively disposed on both sides of the transverse slot; a surge arrester body, with an insert plate fixedly connected to one side of the surge arrester body, the insert plate being insertably disposed inside the transverse slot, with a positioning groove inside the insert plate, the positioning groove corresponding to the locking groove when the insert plate is inserted into the transverse slot, and a support portion also fixedly disposed inside the positioning groove; a locking pin assembly, which is disposed inside both the positioning groove and the locking groove and connected to the support portion; a vertical fixing assembly, which is disposed at the bottom of the surge arrester body; and a locking assembly, which is slidably disposed inside the guide groove.

[0008] As a preferred embodiment of the insulating installation device applied to the surge arrester enclosure according to the present invention, the vertical fixing component includes a hexagonal platform, with a first adjusting screw and a second adjusting screw threadedly connected to both ends of the hexagonal platform, the threads of the first adjusting screw and the second adjusting screw having the same direction, and the first adjusting screw being threadedly connected to the bottom end of the surge arrester body.

[0009] As a preferred embodiment of the insulating installation device applied to the surge arrester enclosure described in this invention, the locking assembly includes an upper slide and a bottom support plate. The bottom support plate is provided at the bottom end of the upper slide, and a tensioning assembly is connected between the upper slide and the bottom support plate. A screw hole is provided at the center of the upper slide, and the screw hole is threadedly engaged with the second adjusting screw.

[0010] As a preferred embodiment of the insulating installation device applied to the surge arrester enclosure described in this invention, the bottom end of the second adjusting screw is provided with a rotating hole, and the upper surface of the base plate is provided with an upwardly protruding rotating shaft, which is rotatably inserted into the rotating hole.

[0011] As a preferred embodiment of the insulating installation device applied to the surge arrester enclosure described in this invention, the locking pin assembly includes a fixed frame, which is fixedly disposed at the top of the support portion. Guide rails are provided on both sides of the fixed frame, and a locking rod is slidably disposed inside the guide rails. When the locking rod slides along the guide rails, its end is inserted into two independent slots of the locking groove formed by the support portion.

[0012] As a preferred embodiment of the insulating installation device applied to the surge arrester enclosure described in this invention, the locking pin assembly further includes a shaft and a rotating plate. The shaft is rotatably disposed at the top of the fixed frame, and the rotating plate is fixedly sleeved on the outer periphery of the shaft. Inclined moving grooves are provided at both ends of the rotating plate, and a protrusion is provided at the top of the locking rod, which is inserted into the corresponding moving groove.

[0013] As a preferred embodiment of the insulating installation device applied to the surge arrester enclosure described in this invention, wherein: the inner wall of the locking groove is provided with a rotating groove, and the position of the rotating groove corresponds to the position of the rotating plate; the top of the rotating plate is provided with an adjusting gear through a ratchet assembly; a toothed plate that meshes with the adjusting gear is slidably provided inside the rotating groove; and a gas spring is provided at the other end of the toothed plate.

[0014] As a preferred embodiment of the insulating installation device applied to the surge arrester enclosure described in this invention, wherein: the other end of the gas rod is connected to a conduit, the conduit penetrates the outer enclosure, the other end of the conduit is connected to a bearing cavity, the bearing cavity is fixedly connected to the outer wall of the outer enclosure, and the interior of the bearing cavity is filled with an evaporating medium.

[0015] As a preferred embodiment of the insulating installation device applied to the surge arrester enclosure according to the present invention, the number of tension components is four, and the four tension components are respectively disposed at the four corners of the bottom end of the upper slide; each tension component includes a support spring and a telescopic knot, the telescopic knot is disposed inside the support spring, the two ends of the telescopic knot are respectively fixedly connected to the two ends of the support spring, the upper end of the support spring is connected to the upper slide, and its lower end is connected to the bottom support plate.

[0016] As a preferred embodiment of the insulating installation device applied to the surge arrester enclosure according to the present invention, wherein: the bottom end of the surge arrester body is connected to a grounding wire, and the other end of the grounding wire passes through the outer enclosure.

[0017] The beneficial effects of this invention are as follows: by driving the gas spring in the locking pin assembly to move by changes in the external ambient temperature, the thermal expansion and contraction of the metal parts is automatically compensated, realizing dynamic adjustment and long-term maintenance of the locking force, fundamentally solving the problem of connection loosening caused by temperature difference. By inserting and aligning and fixing with vertical support of a single rotating hexagonal platform, the installation and disassembly process is greatly simplified, and the operation and maintenance efficiency is improved. It is particularly suitable for high-altitude operations at sea. At the same time, the dual mechanical fixing mode of upper locking and lower support forms a three-dimensional constraint, and the overall rigidity and vibration resistance are significantly better than the traditional single-point fixing method. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the external enclosure of the insulation installation device used in surge arrester enclosures.

[0020] Figure 2 This is a diagram showing the internal structure of the external enclosure of the insulating mounting device used in surge arrester enclosures.

[0021] Figure 3 This is a structural diagram of a bracket used in the insulation mounting device of a surge arrester enclosure.

[0022] Figure 4 This is a structural diagram of a locking assembly used in an insulation mounting device for surge arrester enclosures.

[0023] Figure 5 For use in the insulation installation device of surge arrester enclosure Figure 4 Enlarged view of the structure at point A.

[0024] Figure 6 This is a structural diagram of the fixing frame for the insulation mounting device used in surge arrester enclosures.

[0025] Figure 7 This is a structural diagram of the horizontal slot for the insulation mounting device used in surge arrester enclosures.

[0026] Figure 8 This is a structural diagram of the vertical fixing assembly used in the insulation mounting device of the surge arrester enclosure.

[0027] In the diagram: 1. External housing; 2. Bracket; 21. Guide groove; 22. Protrusion; 23. Horizontal slot; 24. Locking slot; 3. Support part; 4. Surge arrester body; 41. Insert plate; 42. Positioning slot; 43. Grounding wire; 5. Locking pin assembly; 51. Fixed frame; 52. Guide rail; 53. Locking rod; 54. Shaft; 55. Rotating plate; 56. Moving groove; 57. Protrusion; 58. Rotating groove; 59. Gas rod; 510. Conduit; 511. Bearing cavity; 512. Adjusting gear; 513. Tooth plate; 6. Vertical fixing assembly; 61. Hexagonal platform; 62. First adjusting screw; 63. Second adjusting screw; 64. Rotating hole; 7. Locking assembly; 71. Upper slide; 72. Bottom support plate; 73. Tensioning assembly; 731. Support spring; 732. Telescopic joint; 74. Screw hole; 75. Rotating shaft. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1, referring to Figures 1 to 8 This is the first embodiment of the present invention. This embodiment provides an insulation installation device for use in a surge arrester enclosure. The insulation installation device for use in a surge arrester enclosure includes a locking pin assembly 5 and a vertical fixing assembly 6. The upper horizontally inserted locking pin assembly 5 enables self-adaptation to low temperature environments and improves the fixing effect. The lower vertical fixing assembly 6 and the locking assembly 7 work together to achieve rapid and stable three-dimensional installation of the surge arrester.

[0032] Specifically, the outer enclosure 1 is fixedly connected to the offshore wind power equipment, and the outer periphery of the outer enclosure 1 is provided with wire connection bolts for leading out the wires; the bracket 2 is fixedly installed at the bottom of the inner part of the outer enclosure 1. The bracket 2 is a ceramic base, which is used to form an insulating support between the surge arrester body 4 and the outer enclosure 1. The top of the bracket 2 is provided with a guide groove 21, and the upper end of the bracket 2 is provided with a protrusion 22. The inside of the protrusion 22 is provided with a horizontal slot 23, and the top of the protrusion 22 is provided with a locking groove 24 that is perpendicular to the horizontal slot 23. The bracket 2 provides a running track for the bottom locking assembly 7, and the protrusion 22 is used to connect to the upper interface of the surge arrester body 4. The horizontal slot 23 and the locking groove 24 intersect perpendicularly, so that after the surge arrester body 4 completes the initial positioning by horizontal insertion, it can immediately enter the vertical locking direction.

[0033] Specifically, the support part 3, two sets of support parts 3 are fixedly installed inside the locking groove 24 and respectively set on both sides of the transverse slot 23. The support part 3 is embedded in the locking groove 24 as a rigid skeleton. Its main function is to physically separate the continuous locking groove 24 into two independent "grooves" to provide insertion and sliding space for the locking rod 53 in the subsequent locking pin assembly 5. At the same time, the layout of being set on both sides of the transverse slot 23 can provide constraints from two points, ensuring a balanced distribution of locking force and improving the stability of the overall connection.

[0034] Specifically, the surge arrester body 4 has a fixedly connected insert plate 41 on one side. The insert plate 41 is insertably disposed inside the transverse slot 23. The insert plate 41 has a positioning groove 42 inside. When the insert plate 41 is inserted into the transverse slot 23, the positioning groove 42 corresponds to the locking groove 24. The positioning groove 42 is also fixedly disposed inside the support part 3. The insert plate 41 is horizontally inserted into the transverse slot 23, and at this time the coarse positioning of the surge arrester body 4 is completed. When the insert plate 41 is fully inserted, its positioning groove 42 and the locking groove 24 on the bracket 2 protrusion 22 are completely aligned and connected in three-dimensional space, and the internal support parts 3 are also aligned with each other.

[0035] Specifically, the locking pin assembly 5 is simultaneously located inside the positioning groove 42 and the locking groove 24, and is connected to the support part 3; the vertical fixing assembly 6 is located at the bottom end of the arrester body 4; and the locking assembly 7 is slidably located inside the guide groove 21. The locking pin assembly 5 is responsible for locking the insert plate 41 and the protrusion 22 in the horizontal direction to prevent them from coming out. The vertical fixing assembly 6 and the locking assembly 7 work together to support and fasten the bottom of the arrester body 4 in the vertical direction. The dual mechanical fixing mode of the horizontal locking pin and the vertical top support forms a three-dimensional constraint on the arrester in space. Its overall rigidity is far superior to that of the traditional single-point bolt fixing. It is particularly suitable for the harsh working conditions of large temperature fluctuations and frequent mechanical vibrations inside the offshore wind power equipment box, and can significantly prevent the connection from loosening due to thermal expansion and contraction of materials or stress relaxation.

[0036] Example 2, refer to Figures 2-8 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0037] Specifically, the vertical fixing component 6 includes a hexagonal platform 61, with a first adjusting screw 62 and a second adjusting screw 63 threadedly connected to both ends of the hexagonal platform 61. The threads of the first adjusting screw 62 and the second adjusting screw 63 are in the same direction. The first adjusting screw 62 is threaded to the bottom end of the surge arrester body 4. When the hexagonal platform 61 is rotated, since the threads of the two screws are in the same direction, the first adjusting screw 62 and the second adjusting screw 63 will move in the same direction simultaneously. During rotation, the first adjusting screw 62 at the upper end gradually moves downward, and the second adjusting screw 63 gradually rotates downward and screws into the screw hole 74 inside the upper slide 71, thus unfolding the locking component 7 and fixing the surge arrester to the bracket 2. The downward pressing and tightening of the surge arrester body 4 and the unfolding of the bottom support structure can be completed simultaneously with a single rotation, which greatly simplifies the operation steps during installation and disassembly and improves maintenance efficiency.

[0038] Specifically, the locking assembly 7 includes an upper slide 71 and a bottom support plate 72. The bottom support plate 72 is provided at the bottom end of the upper slide 71. A tensioning assembly 73 is connected between the upper slide 71 and the bottom support plate 72. A screw hole 74 is provided at the center of the upper slide 71. The screw hole 74 is threadedly engaged with the second adjusting screw 63. The upper slide 71 and the second adjusting screw 63 form a screw-nut pair through the screw hole 74. When the second adjusting screw 63 rotates and screws into the screw hole 74, it will push the entire bottom support plate 72 to move downward along the guide groove 21. The bottom support plate 72 finally presses the bottom surface of the guide groove 21, providing stable bottom support for the surge arrester body 4 through rigid contact. The tensioning assembly 73 always provides an upward elastic restoring force. This force can help lift the bottom support plate 72 during disassembly, making it easier to remove the surge arrester. This ensures strong fastening force in the working state while also taking into account the convenience of disassembly.

[0039] Specifically, the bottom end of the second adjusting screw 63 is provided with a rotating hole 64, and the upper surface of the base plate 72 is provided with an upwardly protruding rotating shaft 75. The rotating shaft 75 is rotatably inserted into the rotating hole 64. The cooperation between the rotating shaft 75 and the rotating hole 64 allows the bottom end of the second adjusting screw 63 to rotate freely within the rotating hole 64 while rotating to drive the base plate 72 to move downward. This decouples the rotational movement of the screw from the downward pressing movement on the base plate 72, eliminating the circumferential friction at the end of the screw during the transmission of axial force. This prevents the base plate 72 from shifting or jamming due to rotational friction, ensuring smooth and precise vertical fixing action and reducing abnormal wear of components.

[0040] Specifically, the locking pin assembly 5 includes a fixed frame 51, which is fixedly mounted on the top of the support part 3. Guide rails 52 are provided on both sides of the fixed frame 51. A locking rod 53 is slidably mounted inside the guide rails 52. When the locking rod 53 slides along the guide rails 52, its end is inserted into two independent slots of the locking groove 24 formed by the support part 3. The fixed frame 51 provides a stable mounting base for the locking mechanism. The locking rod 53 moves linearly under the constraint of the guide rails 52. Its movement trajectory is accurate and reliable. When the locking rod 53 extends outward, its end is simultaneously inserted into the positioning groove 42 of the insert plate 41 and the locking groove 24 of the protrusion 22, traversing the two parts and physically preventing the insert plate 41 from exiting horizontally.

[0041] Specifically, the locking pin assembly 5 also includes a shaft 54 ​​and a rotating plate 55. The shaft 54 ​​is rotatably mounted on the top of the fixed frame 51, and the rotating plate 55 is fixedly sleeved on the outer periphery of the shaft 54. Inclined moving grooves 56 are provided at both ends of the rotating plate 55, and a protrusion 57 is provided at the top of the locking rod 53. The protrusion 57 is inserted into the corresponding moving groove 56. When the rotating plate 55 rotates slightly around the shaft 54, the inclined moving grooves 56 at both ends will drive the protrusion 57 inserted therein to move along the groove. Since the moving groove 56 is inclined, the small angle change of the rotating plate 55 will be amplified and converted into a large horizontal displacement of the locking rod 53 in the guide rail 52.

[0042] Specifically, the inner wall of the locking groove 24 is provided with a rotating groove 58, and the position of the rotating groove 58 corresponds to the position of the rotating plate 55. The top of the rotating plate 55 is provided with an adjusting gear 512 through a ratchet assembly. The rotating groove 58 is slidably provided with a toothed plate 513 that meshes with the adjusting gear 512. The other end of the toothed plate 513 is provided with a pneumatic rod 59. The pneumatic rod 59 is an automatic drive element. The extension and retraction of its piston rod directly acts on one end of the toothed plate 513. When the pneumatic rod 59 extends and retracts, the toothed plate 513 drives the adjusting gear 512 to twist, thereby controlling the rotation angle of the rotating plate 55. The pneumatic rod 59 is built into the rotating groove 58. By controlling the pressure of the medium inside the pneumatic rod 59 through the external ambient temperature, the extension length of the piston rod can be automatically adjusted, thereby locking the locking rod 53. This can effectively solve the problem of metal parts shrinking due to large temperature differences between day and night at sea.

[0043] Specifically, the other end of the air rod 59 is connected to a conduit 510, which penetrates the outer housing 1. The other end of the conduit 510 is connected to a bearing cavity 511, which is fixedly connected to the outer wall of the outer housing 1. The bearing cavity 511 is filled with an evaporating medium and is exposed to the external ambient air. The evaporating medium inside the bearing cavity will evaporate or condense with changes in ambient temperature, thereby causing pressure changes in the closed system. This pressure is transmitted to the air rod 59 through the conduit 510, driving its action. When the temperature drops, the medium condenses, the pressure drops, and the air rod 59 retracts. The rotating plate 55 makes the locking rod 53 lock outward more tightly, compensating for gaps that may be caused by metal contraction. This enables the locking pin assembly 5 to automatically adapt to changes in ambient temperature, achieving long-term anti-loosening protection.

[0044] Specifically, there are four tension components 73, which are respectively located at the four corners of the bottom of the upper slide 71. Each tension component 73 includes a support spring 731 and a telescopic knot 732. The telescopic knot 732 is located inside the support spring 731, and its two ends are fixedly connected to the two ends of the support spring 731. The upper end of the support spring 731 is connected to the upper slide 71, and its lower end is connected to the bottom support plate 72. The four symmetrically distributed tension components 73 provide a balanced and stable elastic connection between the upper slide 71 and the bottom support plate 72. The support spring 731 provides a continuous upward pulling force to ensure that the entire locking component 7 can be reliably lifted and reset when the second adjusting screw 63 retracts, creating space for disassembling the surge arrester. The internal telescopic knot 732 is a telescopic sleeve structure. The telescopic knot 732 acts as a guide component to improve the stability of the support spring 731.

[0045] Specifically, a grounding wire 43 is connected to the bottom of the surge arrester body 4, and the other end of the grounding wire 43 passes through the outer enclosure 1. The grounding wire 43 is an essential component for the function and safety of the surge arrester. It is directly connected to the bottom of the surge arrester body 4 to ensure that lightning current or overvoltage can be quickly discharged to the ground through this low-impedance path after passing through the surge arrester. The interface where the grounding wire 43 passes through the outer enclosure 1 needs to be sealed and waterproofed to meet the protection requirements of the high humidity and high salt spray environment at sea.

[0046] When using or installing, first push the insert plate 41 on the side of the surge arrester horizontally into the horizontal slot 23 of the bracket 2 until the positioning groove 42 on the insert plate 41 and the locking groove 24 on the bracket 2 are aligned and connected vertically.

[0047] At this time, the temperature adaptive locking pin assembly 5 placed in the locking groove 24 is activated. The evaporation medium in the bearing cavity 511 exposed outside the box undergoes a phase change with the change of ambient temperature. The pressure drives the piston rod of the air rod 59 to extend and retract through the conduit 510, thereby pushing the rotating plate 55 to rotate. This compensates for the gap that may be generated by the metal contraction, enabling the locking pin assembly 5 to automatically adapt to changes in ambient temperature and achieve long-term anti-loosening protection.

[0048] Subsequently, the hexagonal platform 61 at the bottom of the surge arrester is rotated using a tool. Since the screw threads at both ends of the hexagonal platform 61 are the same, the rotation causes the first adjusting screw 62 at the upper end to unscrew out of the surge arrester body 4 and press down, while the second adjusting screw 63 at the lower end is screwed into the screw hole 74 of the upper slide 71 of the locking assembly 7, pushing the bottom support plate 72 to move downward against the spring tension until it presses down on the bottom surface of the guide groove 21, thereby forming a rigid support in the vertical direction. Finally, the surge arrester is fixed inside the outer housing 1 through the locking pin assembly 5, the vertical fixing assembly 6, and the locking assembly 7, thus realizing the installation of the surge arrester.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An insulating installation device applied to a surge arrester enclosure, characterized in that: include, The outer casing (1) is fixedly connected to the offshore wind power equipment; The bracket (2) is fixedly installed at the bottom of the inner side of the outer box (1). The top of the bracket (2) is provided with a guide groove (21). The upper end of the bracket (2) is provided with a protrusion (22). The inside of the protrusion (22) is provided with a horizontal slot (23). The top of the protrusion (22) is provided with a locking groove (24) that is perpendicular to the horizontal slot (23). Support (3), two sets of support (3) are fixedly installed inside the locking groove (24) and respectively installed on both sides of the transverse slot (23); The surge arrester body (4) has a plug plate (41) fixedly connected to one side. The plug plate (41) is insertably disposed inside the transverse slot (23). The plug plate (41) has a positioning groove (42) inside. When the plug plate (41) is inserted into the transverse slot (23), the positioning groove (42) corresponds to the locking groove (24). The positioning groove (42) also has a fixed support part (3) inside. The locking pin assembly (5) is simultaneously disposed inside the positioning groove (42) and the locking groove (24) and connected to the support part (3). It includes a rotating plate (55), a gas rod (59), a conduit (510) and a bearing cavity (511) for adaptively compensating for gaps that may be generated by metal shrinkage according to changes in ambient temperature. A vertical fixing component (6) is disposed at the bottom end of the surge arrester body (4); The locking component (7) is slidably disposed inside the guide groove (21).

2. The insulating installation device applied to a surge arrester enclosure as described in claim 1, characterized in that: The vertical fixing component (6) includes a hexagonal platform (61), with a first adjusting screw (62) and a second adjusting screw (63) threaded to both ends of the hexagonal platform (61). The threads of the first adjusting screw (62) and the second adjusting screw (63) are in the same direction, and the first adjusting screw (62) is threaded to the bottom end of the surge arrester body (4).

3. The insulating installation device applied to the surge arrester enclosure as described in claim 2, characterized in that: The locking assembly (7) includes an upper slide (71) and a bottom support plate (72). The bottom support plate (72) is provided at the bottom end of the upper slide (71). A tensioning assembly (73) is connected between the upper slide (71) and the bottom support plate (72). A screw hole (74) is provided at the center of the upper slide (71). The screw hole (74) is threadedly engaged with the second adjusting screw (63).

4. The insulating installation device applied to a surge arrester enclosure as described in claim 3, characterized in that: The bottom end of the second adjusting screw (63) is provided with a rotating hole (64), and the upper surface of the base plate (72) is provided with an upwardly protruding rotating shaft (75), which is rotatably inserted into the rotating hole (64).

5. The insulating installation device applied to a surge arrester enclosure as described in claim 4, characterized in that: The locking pin assembly (5) includes a fixed frame (51), which is fixedly installed on the top of the support (3). Guide rails (52) are provided on both sides of the fixed frame (51). A locking rod (53) is slidably installed inside the guide rail (52). When the locking rod (53) slides along the guide rail (52), its end is inserted into two independent slots of the locking groove (24) formed by the support (3).

6. The insulating installation device applied to a surge arrester enclosure as described in claim 5, characterized in that: The locking pin assembly (5) also includes a shaft (54) and a rotating plate (55). The shaft (54) is rotatably mounted on the top of the fixed frame (51). The rotating plate (55) is fixedly sleeved on the outer periphery of the shaft (54). Inclined moving grooves (56) are provided at both ends of the rotating plate (55). A protrusion (57) is provided at the top of the locking rod (53). The protrusion (57) is inserted into the interior of the corresponding moving groove (56).

7. The insulating installation device applied to a surge arrester enclosure as described in claim 6, characterized in that: The inner wall of the locking groove (24) is provided with a rotating groove (58), and the position of the rotating groove (58) corresponds to the position of the rotating plate (55). The top of the rotating plate (55) is provided with an adjusting gear (512) through a ratchet assembly. The rotating groove (58) is slidably provided with a toothed plate (513) that meshes with the adjusting gear (512). The other end of the toothed plate (513) is provided with a pneumatic rod (59).

8. The insulating installation device applied to a surge arrester enclosure as described in claim 7, characterized in that: The other end of the gas rod (59) is connected to a conduit (510), which passes through the outer casing (1). The other end of the conduit (510) is connected to a bearing cavity (511), which is fixedly connected to the outer wall of the outer casing (1). The bearing cavity (511) is filled with an evaporation medium.

9. The insulating installation device applied to a surge arrester enclosure as described in claim 8, characterized in that: The number of tension components (73) is four, and the four tension components (73) are respectively set at the four corners of the bottom of the upper slide (71); each tension component (73) includes a support spring (731) and a telescopic knot (732). The telescopic knot (732) is set inside the support spring (731). The two ends of the telescopic knot (732) are respectively fixedly connected to the two ends of the support spring (731). The upper end of the support spring (731) is connected to the upper slide (71), and its lower end is connected to the bottom support plate (72).

10. The insulating installation device applied to a surge arrester enclosure as described in claim 9, characterized in that: The bottom end of the surge arrester body (4) is connected to a grounding wire (43), and the other end of the grounding wire (43) passes through the outer casing (1).

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