Cylindrical head suspension insulator

Abstract

The invention belongs to the technical field of insulators, particularly relates to a cylindrical head suspension insulator, and aims to solve the problems that in the prior art, oil stains and dust are easily accumulated on the surface of an insulator after the surface of the insulator is exposed outside for a long time, flashover phenomena are easily generated, and then the insulator is easily damaged. Comprising a suspension mechanism fixed to the lower surface of the end of a mounting channel steel, the suspension mechanism comprises a first clamping piece fixed to the lower surface of the mounting channel steel, a second clamping piece is clamped to the lower surface of the first clamping piece, a knob insulator body is fixed to the lower surface of the second clamping piece, and a plurality of large discs with the same diameter are arranged in the middle of the knob insulator body. The cleaning device can cooperate with the arrangement of an arc-shaped plate in wind and rain to enable a brush rod in the cleaning mechanism to brush on the surface of the large disc in a swinging manner, so that the surface of the large disc at the position can be cleaned up, surface disruptive discharge caused by formation of a discharge loop on the surface of an insulator is prevented, and the service life of the insulator can be prolonged; and the maintenance period can be greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of insulators, in particular to a cylindrical head suspension insulator. Background Art

[0002] In the prior art, insulators are necessary installation components for high-voltage transmission lines and are widely used in power systems. The uses of insulators in the prior art can be divided into many types, among which the most important use is to install high-voltage cables and maintain insulation. The high-voltage cables are installed on the iron towers of the high-voltage lines through the insulator structure and maintain insulation from the iron towers. The cylindrical head insulator is improved from the conical head insulator on the basis of this theory. The cylindrical head insulator has a higher level of mechanical properties. The cylindrical design increases the connection and installation performance of the iron cap and the porcelain part. Therefore, the use of cylindrical head insulators is very important in power systems.

[0003] After searching, it is found that the cylindrical head suspension insulators used in the prior art usually have a large insulating disk to increase the insulation effect and reduce the density of the electric field lines. There are also insulators made into a large and a small shape. This shape can also reduce the accumulation of rainwater and dust on the surface of the small insulating disk in the middle, thereby isolating the arc and reducing the possibility of leakage. However, these insulators on the market cannot completely eliminate this phenomenon for a long time. After all, the cleaning and maintenance cycles required in different environments are different. Therefore, we propose a new insulator that can reduce the leakage effect caused by surface dust. Summary of the invention

[0004] The invention aims at the technical problem that the surface of the insulator in the prior art is easily accumulated with oil and dust after being exposed to the outside for a long time, which easily causes flashover phenomenon and then easily damages the insulator.

[0005] The cylindrical head suspension insulator proposed in the present invention comprises a suspension mechanism fixed to the lower surface of the end of the mounting channel steel, the suspension mechanism comprises a clamping piece 1 fixed to the lower surface of the mounting channel steel, the lower surface of the clamping piece 1 is clamped with a clamping piece 2, and the lower surface of the clamping piece 2 is fixed with a porcelain column body, the middle of the porcelain column body is a plurality of large plates with the same diameter, and a small porcelain plate is reserved at the bottom end of the porcelain column body, and an arc-shaped notch with an opening facing downward is opened at the bottom end of the small porcelain plate for fixing the high-voltage line body; a horizontal through hole is opened at the bottom end of the porcelain column body; a cylindrical straight neck is reserved between the large plates, and a group of A cleaning mechanism is combined together, and the cleaning mechanism includes a half-clamping block 1 and a half-clamping block 2 fixed together by a mortise and tenon structure; a connecting soft rod is inserted in the middle of the outer wall of the half-clamping block 1, and a wind guide plate is fixed to a section of the connecting soft rod away from the half-clamping block 1, and an arc-shaped plate longer than the wind guide plate is fixed to the side of the wind guide plate; a vertical sliding groove is opened on the side of the half-clamping block 2 away from the connecting soft rod, and a boss slider is slidably connected in the sliding groove, and a clamping spring is fixed to the top of the boss slider, and a brush rod extending to the surface of the large plate is fixed on the side of the boss slider away from the bottom of the groove; the surface bristles of the brush rod are in tight contact with the upper surface of the large plate under the action of the clamping spring.

[0006] A further configuration of the present invention is that an annular anti-skid ridge is reserved on the circumferential outer wall of the cylindrical straight neck, and an anti-slip groove matched with the annular anti-skid ridge is reserved on the circumferential inner wall of the half-block one and the half-block two, and the bottom of the anti-slip groove is embedded with balls distributed at equal distances; and a wedge groove and a wedge head that bite into each other are respectively provided on the opposite sides of the half-block one and the half-block two, and the sides of the wedge groove and the wedge head are respectively provided with a clamping hole and a transverse hole that match each other, and the clamping hole and the transverse hole are inserted with anti-slip pins of the same U-shaped structure; the mortise and tenon structure docking method can effectively prevent the traditional nut mechanism from rusting and falling off, thereby improving the service life of the cleaning mechanism.

[0007] A further configuration of the present invention is that the half-clamp one, the half-clamp two and the brush rod are all made of insulating materials, and the arc plate is made of tough material, which can swing under the action of wind force, thereby allowing the brush rod to produce a swinging effect on the surface of the large plate.

[0008] A further configuration of the present invention is that a U-shaped pull rod with its opening facing downward is inserted into the through hole, and both ends of the U-shaped pull rod away from the through hole are provided with self-locking threads, both ends of the U-shaped pull rod are screwed with the same wire bracket, and an arc-shaped insulating card that matches the wire bracket is clamped in the arc-shaped notch, and both ends of the U-shaped pull rod are screwed with top nuts.

[0009] A further configuration of the present invention is that the large plate in the porcelain column body is in an overall open umbrella-shaped structure, and the surface of the porcelain column body is treated with anti-cracking to prevent the accumulation of rainwater and dust.

[0010] A further configuration of the present invention is that the overall structure of the clamping component 2 is a mushroom-shaped structure, and a protective tube is reserved at the bottom end of the clamping component 2, and the outer wall of the protective tube is provided with three inclined holes 1 distributed in a central symmetrical manner, and the center line of a single inclined hole 1 extends obliquely upward; and a stud extending vertically downward is reserved in the middle of the lower surface of the clamping component 2; a screw pipe socket is provided at the top of the porcelain column body, and an anti-twist internal threaded tube is embedded in the screw pipe socket, and the outer wall of the anti-twist internal threaded tube is provided with anti-slip teeth, and the inner wall of the screw pipe socket is reserved with tooth grooves matched with the anti-slip teeth, and the outer wall of the anti-twist internal threaded tube is coated with structural glue and then inserted into the screw pipe socket; an oblique pin hole 1 corresponding to the three oblique holes 1 is provided on the outer wall of the porcelain column body near the top, and oblique insertion rods for fixing the clamping component 2 and the porcelain column body are respectively inserted into the three oblique pin holes 1.

[0011] A further configuration of the present invention is that a sealing groove is reserved at the top of the porcelain column body, and a gasket is placed on the sealing groove. The gasket can prevent the porcelain column body from cracking due to excessive extrusion when it is rigidly connected to the metal clamp.

[0012] A further configuration of the present invention is that three anti-dropping slots are formed at equal distances on the upper surface of the second card near the circumferential edge, and a fan-shaped protrusion matched with the anti-dropping slot is reserved on the lower surface of the first card near the circumferential edge, and horizontal fan-shaped hanging plates are reserved on the sides of the fan-shaped protrusions in the same direction. After the fan-shaped hanging plates are docked in the anti-dropping slots, the fan-shaped hanging plates can be connected to the anti-dropping slots by rotating counterclockwise. By setting up this docking method, the device can be replaced more conveniently and quickly.

[0013] A further configuration of the present invention is that bolt grooves are provided between two adjacent sector-shaped protrusions on the lower surface of the clamping member 1, and self-locking bolt groups are inserted in the bolt grooves to fix the clamping member 1 and the mounting channel steel.

[0014] A further configuration of the present invention is that a centripetally extending anti-twist socket is provided on the circumferential outer wall of the card member one near the corresponding fan-shaped protrusion, and a combination latch is inserted in each anti-twist socket, the combination latch includes an insertion rod slidably inserted in the anti-twist socket, a reset spring is fixed between the end of the insertion rod and the bottom of the hole, and a tightening wedge is fixed to the other end of the insertion rod; by providing the combination latch, the card member one and the card member two can be prevented from falling off after docking, thereby achieving a locking effect.

[0015] The beneficial effects of the present invention are: 1. Through such an arrangement, the brush rod in the cleaning mechanism can be swung and brushed on the surface of the large plate in cooperation with the setting of the curved plate in wind and rain, so that the surface of the large plate at the location can be cleaned, preventing the formation of a discharge circuit on the surface of the insulator and then causing surface breakdown discharge, which can increase the service life of the insulator and greatly reduce the maintenance cycle.

[0016] 2. By setting the arc-shaped insulating card and wire bracket, not only can the high-voltage line body and the porcelain column body be closely connected, but also the starting point and density of the electric field line can be changed.

[0017] 3. By setting the oblique plug rod and the matching oblique pin hole, and coordinating with the setting of the anti-twist internal threaded tube and the stud, a double fixing effect can be achieved, and then the second clamp is tightly fixed to the porcelain column body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the cylindrical head suspension insulator proposed by the present invention; Figure 2 This is a schematic diagram of the assembly structure of the cylindrical head suspension insulator proposed by the present invention when installing a high-voltage line; Figure 3 It is a schematic diagram of a half-cut three-dimensional structure of a porcelain column body in a cylindrical head suspension insulator proposed by the present invention; Figure 4 This is a schematic diagram of the overall structure of the cylindrical head suspension insulator proposed by the present invention after the suspension mechanism is installed; Figure 5 It is a structural schematic diagram of the suspension mechanism in the cylindrical head suspension insulator proposed by the present invention during installation; Figure 6 This is a schematic diagram of the assembly structure of a clamping member 1 in a cylindrical head suspension insulator proposed by the present invention; Figure 7 This is a schematic diagram of the top structure of a clamping member 1 in a cylindrical head suspension insulator proposed by the present invention; Figure 8 An exploded view of the second clamping member in the cylindrical head suspension insulator proposed by the present invention; Fig. 9 The diagram is a schematic diagram of the exploded structure of the cleaning mechanism in the cylindrical head suspension insulator proposed by the present invention.

[0019] In the figure: 1, the body of the porcelain column; 101, the arc-shaped notch; 102, the screw tube socket; 103, the oblique pin hole 1; 2, the second clamp; 201, the oblique hole 1; 202, the stud; 203, the washer; 204, the anti-dropping slot; 3, the first clamp; 301, the bolt slot; 302, the fan-shaped hanging plug plate; 303, the fan-shaped protrusion; 304, the anti-twist socket; 305, the reset spring; 4, the self-locking bolt group; 5, the installation channel steel; 6, the combination bolt; 61, the plug rod; 62, the stop Tightening wedge; 7. Oblique insertion rod; 8. Arc plate; 9. Wind guide plate; 10. Half clamp block 1; 11. Small porcelain plate; 12. Perforation; 13. U-shaped pull rod; 14. Wire bracket; 15. Arc-shaped insulation card; 16. Half clamp block 2; 17. Brush rod; 18. Top nut; 19. High-voltage line body; 20. Anti-twist internal threaded pipe; 21. Connecting soft rod; 22. Wedge groove; 23. Card hole; 24. Boss slider; 25. Anti-drop pin; 26. Wedge head; 27. Horizontal hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In this embodiment, refer to Figure 1-9, a cylindrical head suspension insulator, comprising a suspension mechanism fixed to the lower surface of the end of the mounting channel steel 5, the suspension mechanism comprising a clamp 1 3 fixed to the lower surface of the mounting channel steel 5, the lower surface of the clamp 1 3 is clamped with a clamp 2 2, and the lower surface of the clamp 2 2 is fixed with a porcelain column body 1, the middle of the porcelain column body 1 is a plurality of large plates with the same diameter, and a small porcelain plate 11 is reserved at the bottom end of the porcelain column body 1, and an arc-shaped notch 101 with an opening facing downward is opened at the bottom end of the small porcelain plate 11 for fixing the high-voltage line body 19; a horizontal through hole 12 is opened at the bottom end of the porcelain column body 1; a cylindrical straight neck is reserved between the large plates, and a cleaning mechanism is rotatably sleeved on the circumferential outer wall of the cylindrical straight neck, and the cleaning mechanism comprises a half clamp 10 and a half clamp 2 16 fixed together by a mortise and tenon structure; a connecting soft rod 21 is inserted in the middle of the outer wall of the half clamp 10, and An air guide plate 9 is fixed to a section of the connecting soft rod 21 away from the half-clamp 10, and an arc-shaped plate 8 longer than the air guide plate 9 is fixed to the side of the air guide plate 9; a vertical slide groove is opened on the side of the half-clamp 2 16 away from the connecting soft rod 21, and a boss slider 24 is slidably connected in the slide groove, and a clamping spring is fixed to the top of the boss slider 24, and a brush rod 17 extending toward the surface of the large disk is fixed to the side of the boss slider 24 away from the bottom of the groove; the surface bristles of the brush rod 17 are in tight contact with the upper surface of the large disk under the action of the clamping spring. Through such an arrangement, the setting of the arc plate 8 can be coordinated in wind and rain, so that the brush rod 17 in the cleaning mechanism can swing and brush the surface of the large disk, so that the surface of the large disk at the location can be cleaned, and a discharge circuit is prevented from forming on the surface of the insulator and then causing surface breakdown discharge, which can increase the service life of the insulator and greatly reduce the maintenance cycle.

[0022] Please refer to Figure 3 and Fig. 9 The circumferential outer wall of the cylindrical straight neck is reserved with an annular anti-skid ridge, and the circumferential inner wall of the half clamping block 10 and the half clamping block 2 16 is reserved with an anti-slip groove matched with the annular anti-skid ridge, and the bottom of the anti-slip groove is embedded with balls distributed at equal distances; and the side of the half clamping block 10 and the half clamping block 2 16 that are opposite to each other is respectively provided with a wedge groove 22 and a wedge head 26 that bite each other, and the sides of the wedge groove 22 and the wedge head 26 are respectively opened with a mutually matching clamping hole 23 and a transverse hole 27, and the clamping hole 23 and the transverse hole 27 are inserted with an anti-slip pin 25 of the same U-shaped structure; through the mortise and tenon structure docking method, the phenomenon of rust and falling off of the traditional nut mechanism can be effectively prevented, and the service life of the cleaning mechanism is improved.

[0023] Please refer to Figure 2 and Fig. 9 The half clamp 10, the half clamp 2 16 and the brush rod 17 are all made of insulating materials, and the arc plate 8 is made of tough material, which can swing under the action of wind, and then the brush rod 17 can produce a swinging effect on the surface of the large plate.

[0024] Please refer to Figure 2 A U-shaped pull rod 13 with its opening facing downward is inserted into the through hole 12, and both ends of the U-shaped pull rod 13 away from the through hole 12 are provided with self-locking threads, both ends of the U-shaped pull rod 13 are screwed with the same wire bracket 14, and an arc-shaped insulating card 15 matched with the wire bracket 14 is clamped in the arc-shaped notch 101, and both ends of the U-shaped pull rod 13 are screwed with top nuts 18; through the provision of the arc-shaped insulating card 15 and the wire bracket 14, not only can the high-voltage line body 19 and the porcelain column body 1 be tightly connected, but also the starting point and density of the electric field lines can be changed.

[0025] Please refer to Figure 2 The large plate in the porcelain column body 1 is in an open umbrella-like structure as a whole, and the surface of the porcelain column body 1 is treated with anti-cracking to prevent the accumulation of rainwater and dust.

[0026] Please refer to Figure 3-4 The overall structure of the clamp 2 is a mushroom-shaped structure, and a protective tube is reserved at the bottom of the clamp 2. The outer wall of the protective tube is provided with three oblique holes 201 that are centrally symmetrically distributed, and the center line of a single oblique hole 201 extends obliquely upward; and a stud 202 extending vertically downward is reserved in the middle of the lower surface of the clamp 2; a screw pipe jack 102 is opened at the top of the porcelain column body 1, and an anti-twist internal threaded tube 20 is embedded in the screw pipe jack 102, and the outer wall of the anti-twist internal threaded tube 20 is provided with anti-stripping teeth, and the inner wall of the screw pipe jack 102 is provided with a screw thread 202. The wall is reserved with tooth grooves that are compatible with the anti-slip teeth, and the outer wall of the anti-twist internal threaded tube 20 is coated with structural glue and then inserted into the screw tube socket 102; the outer wall of the porcelain column body 1 is opened with an oblique pin hole 103 corresponding to the three oblique holes 201 near the top, and the three oblique pin holes 103 are respectively inserted with oblique rods 7 for fixing the clamp 2 2 and the porcelain column body 1; through the provision of the oblique rod 7 and the anti-twist internal threaded tube 20, a double fixing effect can be achieved, and then the clamp 2 2 is tightly fixed to the porcelain column body 1.

[0027] Please refer to Figure 3-4 A sealing groove is reserved at the top of the porcelain column body 1, and a gasket 203 is placed on the sealing groove. The gasket 203 can prevent the porcelain column body 1 from cracking due to excessive extrusion when it is rigidly connected to the metal clamp 2.

[0028] Please refer to Figure 6 and Figure 8The upper surface of the second card member 2 is provided with three equidistant anti-dropping slots 204 near the circumferential edge, and the lower surface of the card member 3 is provided with a fan-shaped protrusion 303 matched with the anti-dropping slot 204 near the circumferential edge, and the side surfaces of the fan-shaped protrusion 303 in the same direction are provided with a horizontal fan-shaped hanging plug plate 302. After the fan-shaped hanging plug plate 302 is docked in the anti-dropping slot 204, the card member 2 can be rotated counterclockwise to clamp the fan-shaped hanging plug plate 302 in the anti-dropping slot 204. By setting this docking method, the device can be replaced more conveniently and quickly.

[0029] Please refer to Figure 8 The lower surface of the clamp 3 is provided with bolt grooves 301 between two adjacent fan-shaped protrusions 303, and the bolt grooves 301 are inserted with self-locking bolt groups 4 to fix the clamp 3 and the installation channel steel 5.

[0030] Please refer to Figure 6 and Figure 8 The circumferential outer wall of the card part 3 is provided with a centripetally extending anti-twist socket 304 near the corresponding fan-shaped protrusion 303, and each anti-twist socket 304 is plugged with a combination latch 6, which includes an insertion rod 61 slidably inserted into the anti-twist socket 304, a reset spring 305 is fixed between the end of the insertion rod 61 and the bottom of the hole, and a tightening wedge 62 is fixed to the other end of the insertion rod 61; the provision of the combination latch 6 can prevent the card part 1 3 and the card part 2 2 from falling off after docking, thereby achieving a locking effect.

[0031] During installation, first fix the clamp 3 in the suspension mechanism to the installation channel steel 5 through three self-locking bolt groups 4, and then suspend the fixed clamp 2 2 and the porcelain column body 1 to the bottom of the clamp 3 to prepare for docking. Before docking, pull out the three combination pins 6 until the distance is enough to press the wedge block 62 to completely exceed the circumferential edge of the clamp 3; then docking can be carried out, and the whole body slowly moves up during docking until the lower surface of the fan-shaped protrusion 303 presses against the anti-detachment slot 204, and then rotate the clamp 2 2 and the porcelain column body 1 as a whole counterclockwise to clamp the fan-shaped suspension plate 302 in the anti-detachment slot 204; then release the three combination pins 6 to lock the two; finally, through the set arc-shaped insulating card 15 and the wire bracket 14, the high-voltage line body 19 and the porcelain column body 1 are tightly docked.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cylindrical head suspension insulator, comprising a suspension mechanism fixed to the lower surface of the end of a mounting channel steel (5), It is characterized in that The suspension mechanism comprises a clamping member 1 (3) fixed to the lower surface of the mounting channel steel (5), the lower surface of the clamping member 1 (3) is clamped with a clamping member 2 (2), and the lower surface of the clamping member 2 (2) is fixed with a porcelain column body (1), the middle of the porcelain column body (1) is a plurality of large plates with the same diameter, and a small porcelain plate (11) is reserved at the bottom end of the porcelain column body (1), and the bottom end of the small porcelain plate (11) is provided with an arc-shaped notch (101) with an opening facing downwards for fixing the high-voltage line body (19); the bottom end of the porcelain column body (1) is provided with a horizontally penetrating through hole (12); a cylindrical straight neck is reserved between the large plates, and a cleaning mechanism is rotatably sleeved on the circumferential outer wall of the cylindrical straight neck, and the cleaning mechanism comprises a cleaning mechanism fixed to the high-voltage line body (19) by a mortise and tenon structure. A half clamping block (10) and a half clamping block (16) are connected together; a connecting rod (21) is inserted into the middle of the outer wall of the half clamping block (10), and a wind guide plate (9) is fixed to a section of the connecting rod (21) away from the half clamping block (10), and a curved plate (8) longer than the wind guide plate (9) is fixed to the side of the wind guide plate (9); a vertical sliding groove is opened on the side of the half clamping block (16) away from the connecting rod (21), and a boss slider (24) is slidably connected in the sliding groove, and a clamping spring is fixed to the top of the boss slider (24), and a brush rod (17) extending toward the surface of the large plate is fixed to the side of the boss slider (24) away from the bottom of the groove; the surface bristles of the brush rod (17) are in tight contact with the upper surface of the large plate under the action of the clamping spring.

2. The cylindrical head suspension insulator according to claim 1, It is characterized in that The circumferential outer wall of the cylindrical straight neck is reserved with an annular anti-skid ridge, and the circumferential inner wall of the half clamp block 1 (10) and the half clamp block 2 (16) is reserved with an anti-slip groove matched with the annular anti-skid ridge, and the bottom of the anti-slip groove is embedded with balls distributed at equal distances; and the half clamp block 1 (10) and the half clamp block 2 (16) are respectively provided with a wedge groove (22) and a wedge head (26) that interlock with each other on one side, and the side surfaces of the wedge groove (22) and the wedge head (26) are respectively provided with a clamping hole (23) and a transverse hole (27) that interlock with each other, and the clamping hole (23) and the transverse hole (27) are inserted with an anti-slip pin (25) of the same U-shaped structure.

3. The cylindrical head suspension insulator according to claim 2, It is characterized in that The half clamp block 1 (10), the half clamp block 2 (16) and the brush rod (17) are all made of insulating materials, and the arc plate (8) is made of tough material.

4. The cylindrical head suspension insulator according to claim 1, It is characterized in that A U-shaped pull rod (13) with an opening facing downward is inserted into the through hole (12), and both ends of the U-shaped pull rod (13) away from the through hole (12) are provided with self-locking threads, both ends of the U-shaped pull rod (13) are screwed to the same wire bracket (14), and an arc-shaped insulating clip (15) adapted to the wire bracket (14) is clamped in the arc-shaped notch (101), and both ends of the U-shaped pull rod (13) are screwed to opposite nuts (18).

5. The cylindrical head suspension insulator according to claim 1, It is characterized in that The large plate in the ceramic column body (1) is in the shape of an open umbrella as a whole, and the surface of the ceramic column body (1) is treated to prevent cracking.

6. The cylindrical head suspension insulator according to claim 1, It is characterized in that The second clamping member (2) is in the shape of a mushroom as a whole, and a protective tube is reserved at the bottom end of the second clamping member (2), and the outer wall of the protective tube is provided with three oblique holes (201) distributed in a centrally symmetrical manner, and the center line of a single oblique hole (201) extends obliquely upward; and a stud (202) extending vertically downward is reserved in the middle of the lower surface of the second clamping member (2); a screw tube insertion hole (102) is opened at the top end of the porcelain column body (1), and an anti-twist internal threaded tube (20) is embedded in the screw tube insertion hole (102), The outer wall of the anti-twist internal threaded tube (20) is provided with anti-slip teeth, and the inner wall of the screw tube insertion hole (102) is reserved with tooth grooves that match the anti-slip teeth. The outer wall of the anti-twist internal threaded tube (20) is coated with structural adhesive and then inserted into the screw tube insertion hole (102); the outer wall of the porcelain column body (1) is provided with an oblique pin hole (103) corresponding to the three oblique holes (201) near the top, and the three oblique pin holes (103) are respectively inserted with oblique insertion rods (7) for fixing the clamping member (2) and the porcelain column body (1).

7. The cylindrical head suspension insulator according to claim 6, It is characterized in that A sealing groove is reserved at the top of the porcelain column body (1), and a gasket (203) is placed on the sealing groove.

8. The cylindrical head suspension insulator according to claim 1, It is characterized in that The upper surface of the second clamping member (2) is provided with three equally spaced anti-dropping grooves (204) near the circumferential edge, and the lower surface of the first clamping member (3) is provided with fan-shaped protrusions (303) matched with the anti-dropping grooves (204) near the circumferential edge, and the side surfaces of the fan-shaped protrusions (303) in the same direction are provided with horizontal fan-shaped hanging plates (302).

9. The cylindrical head suspension insulator according to claim 8, It is characterized in that The lower surface of the clamping member 1 (3) is provided with bolt grooves (301) between two adjacent sector-shaped protrusions (303), and a self-locking bolt group (4) is inserted into the bolt grooves (301).

10. The cylindrical head suspension insulator according to any one of claims 8 to 9, It is characterized in that The circumferential outer wall of the clamping member (3) is provided with a centripetally extending anti-twist plug hole (304) near the corresponding fan-shaped protrusion (303), and each anti-twist plug hole (304) is plugged with a combination plug pin (6), the combination plug pin (6) comprising an insertion rod (61) slidably plugged into the anti-twist plug hole (304), a return tension spring (305) is fixed between the end of the insertion rod (61) and the bottom of the hole, and a tightening wedge block (62) is fixed to the other end of the insertion rod (61).

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