A high-strength ceramic insulator

Abstract

The present invention relates to the technical field of insulators, and specifically relates to a high-strength porcelain insulator. A lower clamp for fixedly clamping a power transmission cable in cooperation with an upper mounting member is rotatably installed on a limiting cross beam. A lower insertion block for inserting and cooperating with an insulating column is provided on the upper mounting member. A hook groove is provided on the lower insertion block. A plug rod assembly that is laterally inserted into the insulating column and cooperates with and is sleeved in the hook groove is provided. After the upper mounting member is turned and rotated along the limiting cross beam, the hook groove on the lower insertion block can be clamped on the upper cross beam. The beneficial effects are as follows: By providing an upper mounting member with a hook groove, during the disassembly and replacement process, by reversely rotating and hanging on the upper cross beam, the purpose of temporarily supporting the power transmission cable is achieved. At the same time, a plug rod assembly is provided to cooperate with the hook groove of the lower insertion block, which not only fixes the upper mounting member but also realizes the fixed installation of the insulating column. Moreover, the plug rod assembly is inserted inside the insulator and is not easily affected by the environment, ensuring the installation strength and stability of the insulator.

Description

Technical Field

[0001] The present invention relates to the technical field of insulators, and specifically to a high-strength porcelain insulator. Background Art

[0002] An insulator is a device used for supporting in transmission cables. The cables are supported by the insulator to prevent leakage caused by the cables dragging on the ground.

[0003] Most of the existing insulators are porcelain insulators, which have strong supporting strength and low manufacturing cost, but have a short service life and need to be replaced. The existing patent CN217239171U discloses a hollow porcelain insulator that is convenient for installation and replacement, including a pole bracket, a mounting plate and a limiting member. A fixing member is provided at the bottom end of the pole bracket, a limiting rod is connected to the bottom end of the fixing member, the mounting plate is arranged at the bottom end of the pole bracket, a mounting cavity is formed on the inner wall of the mounting plate, a telescopic spring for driving the telescopic movement of the limiting member is installed inside the mounting cavity, and a limiting groove is provided on the inner wall of the limiting rod at one end of the limiting member, which is a hollow porcelain insulator that is convenient for installation and replacement, easy to load and unload, and has a lightning protection function.

[0004] However, since most porcelain insulators are installed on high-altitude power transmission equipment, their replacement operation is inconvenient. Moreover, during the replacement process, the supporting force is insufficient, making it difficult to support the transmission cables during replacement. At the same time, although the self-supporting strength of the existing porcelain insulators meets the requirements, the installation strength cannot meet the requirements of the high-altitude environment. Due to reasons such as high-altitude air flow, vibration or environmental corrosion, the connection positions are extremely likely to fall off. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-strength porcelain insulator to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A high-strength porcelain insulator includes a right-angle side frame and an insulating column. One side of the right-angle side frame is installed on a high-altitude power transmission frame. A lower stud is provided on the lower end plate of the right-angle side frame, and an upper insertion rod is provided on the lower stud. A lower installation groove for mating and inserting with the upper insertion rod is provided at the lower end of the insulating column.

[0008] An upper mounting member for supporting a power transmission cable is installed at the upper end of the insulating column. An elastic component is pressed between the lower mounting groove and the upper insertion rod. A limiting cross beam and an upper cross beam located at the upper end of the upper mounting member are provided on the right-angle side frame. A lower clamping hoop for fixedly clamping the power transmission cable in cooperation with the upper mounting member is rotatably installed on the limiting cross beam. A lower insertion block for plugging and matching with the insulating column is provided on the upper mounting member. A hook groove is provided on the lower insertion block. An insertion rod assembly is laterally inserted into the insulating column and is sleeved in cooperation with the hook groove. After the upper mounting member is turned and rotated along the limiting cross beam, the hook groove on the lower insertion block can be clamped on the upper cross beam.

[0009] Preferably, a square hole is provided at the upper end of the insulating column. A transverse insertion slot vertically communicating with the square hole is provided on the upper arc-shaped outer wall of the insulating column. The lower insertion block is inserted and installed along the square hole, and the hook groove on the lower insertion block corresponds to the transverse insertion slot. A driving column with an outer diameter equal to the inner diameter of the hook groove is provided on the insertion rod assembly. After the insertion rod assembly is inserted along the transverse insertion slot, the driving column is inserted in cooperation with the hook groove.

[0010] Preferably, a supporting screw ring is rotatably threaded on the lower stud. An insulating gasket ring is provided at the upper end of the supporting screw ring. The upper end of the insulating gasket ring is fixed to the lower end face of the insulating column. An upper clamping hoop is provided at the upper end of the upper mounting member. The upper clamping hoop and the lower clamping hoop are fixedly matched to clamp the power transmission cable. A collar rotatably sleeved on the limiting cross beam is provided at the upper end of the lower clamping hoop.

[0011] Preferably, the elastic component includes a folding tube, an elastic pull rod, and an elastic sheet ring. The folding tube is located between the lower mounting groove and the upper insertion rod. The inner sides of adjacent annular folding plates of the folding tube are connected by an elastic sheet ring. The elastic sheet ring is supported between adjacent annular folding plates. The elastic sheet ring is an insulating plastic part, and a plurality of groups of elastic pull rods distributed in a circumferential array are provided on the inner circle of the elastic sheet ring.

[0012] Preferably, a pair of extension arms are provided on the upper insertion rod. A pair of vertical slots communicating with the transverse insertion slot are provided on the lower mounting groove. The extension arms are inserted along the vertical slots. Through holes corresponding to the transverse insertion slot are provided at the upper ends of the extension arms. A pair of support columns are provided on the insertion rod assembly. The outer diameter of the support columns is smaller than the outer diameter of the driving column. The pair of support columns are respectively inserted into the through holes on the symmetrically distributed extension arms.

[0013] Preferably, an arc groove extending inward is provided on one side of the notch position of the hook groove. A telescopic arc plate is slidably inserted into the arc groove. One end of the telescopic arc plate extends to the outside of the arc groove and is provided with a rotating seat. A rotating clamping plate is rotatably installed on the rotating seat at the end of the telescopic arc plate. A stop block for restricting the rotation angle of the rotating clamping plate is provided on the rotating seat. A lower opening groove for slidably inserting and matching with the rotating clamping plate is provided on the arc-shaped outer wall of the driving column. The two side walls of the rotating clamping plate are attached to the two inner walls of the lower opening groove.

[0014] Preferably, a clamping groove is arranged at a position of the notch of the hook groove far away from one end of the telescopic arc plate. The clamping groove can cooperate with the end part of the rotating clamping plate. Elastic pin rods are symmetrically arranged at both ends inside the clamping groove. The gap width between a pair of elastic pin rods is smaller than the width of the rotating clamping plate. A through hole is arranged at the end part of the rotating clamping plate. The through hole can be cooperatively inserted with the elastic pin rod, and the elastic pin rod is elastically inserted on the inner wall of the clamping groove.

[0015] Preferably, a limiting disc is arranged at the other end of the inserting rod assembly. An expanded-diameter semi-ring is arranged at the lower end of the limiting disc. The outer port of the transverse inserting slot is set to an outer contour adapted to the limiting disc and the expanded-diameter semi-ring. The inner diameter of the inner side of the port of the transverse inserting slot is set to be the same as the outer diameter of the expanded-diameter semi-ring.

[0016] Preferably, a spring is arranged at one end of the inserting rod assembly. The spring abuts between the end part of the inserting rod assembly and the inner wall of the transverse inserting slot. An arc groove adapted to the arc-shaped outer wall of the telescopic arc plate is arranged at the lower inner wall of the square hole.

[0017] Preferably, a plurality of groups of protrusions distributed in a circumferential array are arranged on the expanded-diameter semi-ring. A plurality of groups of hole grooves are arranged on the inner side of the port of the transverse inserting slot. The positions of the hole grooves are circumferentially offset from the protrusions.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] By arranging the upper mounting part with a hook groove, during the disassembly and replacement process, the upper cross beam is reversely rotated and hung to achieve the purpose of temporarily supporting the power transmission cable. At the same time, the inserting rod assembly is arranged to cooperate with the hook groove of the lower inserting block, so as to fix the upper mounting part and realize the fixed installation of the insulating column. The inserting rod assembly is inserted inside the insulator and is not easily affected by the environment, ensuring the installation strength and stability of the insulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the installation of the insulating column of the present invention on the right-angle side frame;

[0021] Figure 2 is a three-dimensional structural schematic diagram of the upper inserting rod of the present invention;

[0022] Figure 3 is a three-dimensional structural schematic diagram of the inserting rod assembly of the present invention;

[0023] Figure 4 is a three-dimensional structural schematic diagram of the upper mounting part of the present invention;

[0024] Figure 5 is a schematic diagram of the installation structure of the present invention;

[0025] Figure 6 is Figure 5 the enlarged view of the structure at A in

[0026] Figure 7 Schematic three-dimensional structure diagram of the upper and lower clamps assembly of the present invention;

[0027] Figure 8 Schematic structure diagram of the plug rod assembly of the present invention.

[0028] In the figure: 1, right-angle side frame; 2, lower stud; 3, upper plug rod; 4, limiting cross beam; 5, upper cross beam; 6, insulating column; 7, horizontal slot; 8, upper mounting member; 9, upper clamp; 10, lower clamp; 11, plug rod assembly; 12, power transmission cable; 13, insulating gasket ring; 14, supporting screw ring; 15, folding tube; 16, square hole; 17, extension arm; 18, through hole; 19, lower mounting groove; 20, elastic pull rod; 21, elastic sheet ring; 22, driving column; 23, limiting disk; 24, lower opening slot; 25, supporting column; 26, spring; 27, lower plug block; 28, hook groove; 29, telescopic arc plate; 30, rotating clamping plate; 31, through hole; 32, elastic pin rod; 33, diameter-expanded half ring; 34, protrusion; 35, collar. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 to 8 , the present invention provides a technical solution:

[0031] Embodiment 1: A high-strength porcelain insulator includes a right-angle side frame 1 and an insulating column 6. One side of the right-angle side frame 1 is installed on a high-altitude power transmission tower. A lower stud 2 is provided on the lower end plate of the right-angle side frame 1. An upper plug rod 3 is provided on the lower stud 2. A lower mounting groove 19 for mating and plugging installation with the upper plug rod 3 is provided at the lower end of the insulating column 6.

[0032] Through the cooperation of the lower mounting groove 19 and the upper plug rod 3, the plugging and limiting installation of the lower end of the insulating column 6 is realized.

[0033] An upper mounting member 8 for supporting the power transmission cable 12 is installed at the upper end of the insulating column 6. An elastic component is pressed between the lower mounting groove 19 and the upper plug rod 3. A limiting cross beam 4 and an upper cross beam 5 located above the upper mounting member 8 are provided on the right-angle side frame 1. A lower clamp 10 for cooperating with the upper mounting member 8 to fixedly clamp the power transmission cable 12 is rotatably installed on the limiting cross beam 4.

[0034] By setting the cooperation between the lower clamp 10 and the upper mounting member 8, the power transmission cable 12 is limited, supported and clamped.

[0035] The upper mounting member 8 is provided with a lower insertion block 27 that is inserted and cooperated with the insulating column 6. The lower insertion block 27 is provided with a hook groove 28. The side of the insulating column 6 is inserted with a plug rod assembly 11 that is sleeved and cooperated with the hook groove 28. After the upper mounting member 8 is turned over along the limit cross beam 4, the hook groove 28 on the lower insertion block 27 can be clamped on the upper cross beam 5.

[0036] By setting the cooperation between the lower insertion block 27 with the hook groove 28 and the plug rod assembly 11, the fixed installation of the upper mounting member 8 on the insulating column 6 is realized. By using the cooperation between the hook groove 28 and the upper cross beam 5, the temporary support for the power transmission cable 12 is realized.

[0037] Working principle: First, during installation, the insulating column 6 is inserted into the upper plug rod 3, and the upper mounting member 8 is inserted into the upper end of the insulating column 6. By the horizontal insertion of the plug rod assembly 11, it is pressed against the hook groove 28, realizing the fixed installation of the upper mounting member 8 while making the plug rod assembly 11 received in the insulating column 6 to avoid environmental erosion. During the replacement process, the plug rod assembly 11 is pulled out, and the insulating column 6 is lowered along the upper plug rod 3 by using the elastic component, so that the lower insertion block 27 is exposed. By the rotation of the lower insertion block 27 along the limit cross beam 4, the hook groove 28 is reversely clamped on the upper cross beam 5 to realize the temporary support for the power transmission cable 12. Then, the insulating column 6 is pulled out upward for replacement. After replacement, under the reset elastic force of the elastic component and the reset rotation of the lower insertion block 27, the re-fixed installation of the insulating column 6 is realized.

[0038] Embodiment 2: On the basis of Embodiment 1, in order to further improve the installation strength and stability of the lower end of the insulating column 6, a square hole 16 is provided at the upper end of the insulating column 6, and a horizontal slot 7 vertically communicating with the square hole 16 is provided on the upper arc outer wall of the insulating column 6. The lower insertion block 27 is inserted and installed along the square hole 16, and the hook groove 28 on the lower insertion block 27 corresponds to the horizontal slot 7. The plug rod assembly 11 is provided with a driving column 22 whose outer diameter is equal to the inner diameter of the hook groove 28. After the plug rod assembly 11 is inserted along the horizontal slot 7, the driving column 22 is inserted and cooperated with the hook groove 28.

[0039] By setting the horizontal slot 7 and the square hole 16, the limit insertion and installation of the lower insertion block 27 and the plug rod assembly 11 are realized. By using the cooperation between the driving column 22 and the hook groove 28, the lower insertion block 27 is pressed downward to achieve the purpose of fixing the upper mounting member 8.

[0040] A support screw ring 14 is rotationally installed on the lower stud 2 in a threaded manner. An insulating gasket ring 13 is provided at the upper end of the support screw ring 14. The upper end of the insulating gasket ring 13 abuts against the lower end face of the insulating column 6. An upper clamp 9 is provided at the upper end of the upper mounting member 8. The upper clamp 9 is fixedly engaged with the lower clamp 10 and clamps the power transmission cable 12. A collar 35 is provided at the upper end of the lower clamp 10 and is rotatably sleeved on the limit cross beam 4.

[0041] By providing the cooperation of the support screw ring 14 and the lower stud 2, the threaded rotation adjustment of the lifting of the insulating column 6 is realized. The lifting of the insulating column 6 is controlled by the threaded rotation of the support screw ring 14 on the lower stud 2, thereby realizing the precise adjustment of the height position of the insulating column 6 and ensuring the installation accuracy and stability.

[0042] Embodiment 3: On the basis of Embodiment 2, in order to avoid the electromagnetic influence of the power transmission cable 12 on the metal spring, the elastic component includes a folding tube 15, an elastic pull rod 20 and an elastic sheet ring 21. The folding tube 15 is located between the lower installation groove 19 and the upper insertion rod 3. The inner sides of the adjacent annular folding plates of the folding tube 15 are connected by the elastic sheet ring 21. The elastic sheet ring 21 is supported between the adjacent annular folding plates. The elastic sheet ring 21 is an insulating plastic part. A plurality of groups of elastic pull rods 20 distributed in a circumferential array are provided on the inner ring of the elastic sheet ring 21.

[0043] By providing an insulating elastic part composed of the folding tube 15 and the elastic sheet ring 21, the elastic support is realized while avoiding the electromagnetic influence. With the vertical support of the elastic sheet ring 21, the extension of the folding tube 15 is ensured. When the upward supporting force of the support screw ring 14 is received, the elastic sheet ring 21 is elastically bent under pressure deformation, realizing the contraction of the folding tube 15. When the support screw ring 14 descends, due to the reset elastic force of the elastic pull rod 20 and the elastic sheet ring 21, the reset extension of the folding tube 15 is realized.

[0044] Embodiment 4: On the basis of Embodiment 3, in order to further improve the installation strength of the insulating column 6, a pair of extension arms 17 are provided on the upper insertion rod 3. A pair of vertical grooves communicating with the transverse slots 7 are provided on the lower installation groove 19. The extension arms 17 are inserted along the vertical grooves. Through holes 18 corresponding to the transverse slots 7 are provided at the upper ends of the extension arms 17. A pair of support columns 25 are provided on the insertion rod assembly 11. The outer diameter of the support columns 25 is smaller than the outer diameter of the driving column 22. The pair of support columns 25 are respectively inserted into the through holes 18 on the symmetrically distributed extension arms 17.

[0045] By setting the extension arm 17, the upper insertion rod 3 is cooperatively inserted with the insertion rod assembly 11, so as to utilize the insertion of the support column 25 into the through hole 18 to achieve the purpose of limiting the height of the insulating column 6. As the support screw ring 14 is driven upward, the through hole 18 is aligned with the transverse slot 7, and then the support column 25 is used to limit the extension arm 17 to form a vertical insertion and fixation. At this time, even if the support screw ring 14 falls off and loses the supporting force, the insulating column 6 can still maintain the position height of supporting the transmission cable 12.

[0046] On one side of the notch position of the hook groove 28, an arc groove extending inward is provided. A telescopic arc plate 29 is slidably inserted and installed in the arc groove. One end of the telescopic arc plate 29 extends to the outside of the arc groove and is provided with a rotating seat. A rotating clamping plate 30 is rotatably installed on the rotating seat of the end of the telescopic arc plate 29. A stop block for restricting the rotation angle of the rotating clamping plate 30 is provided on the rotating seat. A lower opening groove 24 for slidably inserting and cooperating with the rotating clamping plate 30 is provided on the arc outer wall of the driving column 22. The two side walls of the rotating clamping plate 30 are attached to the two inner walls of the lower opening groove 24.

[0047] By setting the rotational cooperation between the lower opening groove 24 and the rotating clamping plate 30, the telescopic arc plate 29 is driven to rotate. In the actual working process, before the lower insertion block 27 is inserted, the rotating clamping plate 30 is flipped upward. After the insertion rod assembly 11 is inserted, the outer diameter of the front support column 25 is smaller than that of the rotating clamping plate 30, so it directly passes over. The lower opening groove 24 on the driving column 22 just cooperates with the rotating clamping plate 30 for insertion. Then the insertion rod assembly 11 is rotated, and the rotation of the insertion rod assembly 11 drives the telescopic arc plate 29 to extend, thereby closing the notch and increasing the contact area between the driving column 22 and the hook groove 28, avoiding the left and right offset of the upper mounting member 8 and causing the driving column 22 to fall off along the notch position.

[0048] A limiting disk 23 is provided at the other end of the insertion rod assembly 11. An enlarged diameter half ring 33 is provided at the lower end of the limiting disk 23. The outer port of the transverse slot 7 is set to an outer contour adapted to the limiting disk 23 and the enlarged diameter half ring 33. The inner diameter of the inner side of the transverse slot 7 port is set to be the same as the outer diameter of the enlarged diameter half ring 33. A spring 26 is provided at one end of the insertion rod assembly 11. The spring 26 abuts between the end of the insertion rod assembly 11 and the inner wall of the transverse slot 7. An arc groove for fitting with the arc outer wall of the telescopic arc plate 29 is provided on the lower inner wall of the square hole 16. A plurality of groups of protrusions 34 are provided on the enlarged diameter half ring 33 in a circumferentially arrayed manner. A plurality of groups of hole grooves are provided on the inner side of the transverse slot 7 port. The positions of the hole grooves are circumferentially offset from the protrusions 34.

[0049] During the installation of the insertion rod assembly 11, through insertion, the limiting disk 23 extends to the inner side of the port of the transverse slot 7. By rotating the insertion rod assembly 11, the expanded diameter half-ring 33 is misaligned with the outer contour of the port of the transverse slot 7. Then, under the restoring elastic force of the spring 26, the expanded diameter half-ring 33 is pressed against the inner wall of the port of the transverse slot 7 to achieve the purpose of fixing the insertion rod assembly 11 and prevent the insertion rod assembly 11 from falling off. By setting the cooperation between the protrusion 34 and the hole groove, after rotation, the protrusion 34 on the expanded diameter half-ring 33 corresponds to the hole groove. Under the restoring elastic force of the spring 26, the protrusion 34 is inserted into the hole groove to achieve the purpose of controlling the rotation angle of the insertion rod assembly 11 and prevent the insertion rod assembly 11 from falling off due to self-rotation.

[0050] During disassembly, it is necessary to first drive the insertion rod assembly 11 inward to compress the spring 26 so that the protrusion 34 is separated from the hole groove. Then rotate the insertion rod assembly 11 so that the expanded diameter half-ring 33 fits the outer contour of the port of the transverse slot 7. Then, the insertion rod assembly 11 can be withdrawn to disassemble the insulating column 6.

[0051] A clamping groove is provided at a position of the notch of the hook groove 28 far from one end of the telescopic arc plate 29. The clamping groove can cooperate with the end of the rotating clamping plate 30. Elastic pin rods 32 are symmetrically arranged at both ends inside the clamping groove. The gap width between the pair of elastic pin rods 32 is smaller than the width of the rotating clamping plate 30. A through hole 31 is provided at the end of the rotating clamping plate 30, and the through hole 31 can cooperate with the elastic pin rod 32 for insertion. The elastic pin rod 32 is elastically inserted into the inner wall of the clamping groove. By using the cooperation between the rotating clamping plate 30 and the elastic pin rod 32, the notch of the hook groove 28 is closed.

[0052] After the lower insertion block 27 rotates in the reverse direction so that the hook groove 28 is clamped on the upper cross beam 5 along the notch, manually pull the telescopic arc plate 29 to slide it so that it extends towards the clamping groove position. Then drive the rotating clamping plate 30 to rotate to the position where it cooperates with the clamping groove. Withdraw the elastic pin rods 32 bidirectionally so that the end of the rotating clamping plate 30 is clamped in the clamping groove. Release the elastic pin rods 32 so that they are inserted into the through hole 31 to achieve the purpose of closing the hook groove 28 and ensure the installation strength of the temporary support.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength ceramic insulator, comprising a right-angle side frame (1) and an insulating column (6). One side of the right-angle side frame (1) is installed on a high-altitude power transmission frame. A lower stud (2) is provided on the lower end plate of the right-angle side frame (1), and an upper insertion rod (3) is provided on the lower stud (2). The lower end of the insulating column (6) is provided with a lower installation groove (19) that is fitted and inserted with the upper insertion rod (3). It is characterized in that: An upper installation member (8) for supporting a power transmission cable (12) is installed at the upper end of the insulating column (6). An elastic component is pressed between the lower installation groove (19) and the upper insertion rod (3). A limiting cross beam (4) and an upper cross beam (5) are provided on the right-angle side frame (1) and located above the upper installation member (8). A lower clamp (10) that is rotatably installed on the limiting cross beam (4) and cooperates with the upper installation member (8) to fixedly clamp the power transmission cable (12) is provided on the limiting cross beam (4). A lower insertion block (27) that cooperates with the insulating column (6) for insertion is provided on the upper installation member (8). A hook groove (28) is provided on the lower insertion block (27). An insertion rod assembly (11) that is laterally inserted into the insulating column (6) and is fitted and sleeved with the hook groove (28) is provided. After the upper installation member (8) is turned and rotated along the limiting cross beam (4), the hook groove (28) on the lower insertion block (27) can be clamped on the upper cross beam (5).

2. The high-strength ceramic insulator according to claim 1, wherein: A square hole (16) is provided at the upper end of the insulating column (6). A transverse slot (7) that is vertically communicated with the square hole (16) is provided on the upper arc-shaped outer wall of the insulating column (6). The lower insertion block (27) is inserted and installed along the square hole (16), and the hook groove (28) on the lower insertion block (27) corresponds to the transverse slot (7). A driving column (22) with an outer diameter equal to the inner diameter of the hook groove (28) is provided on the insertion rod assembly (11). After the insertion rod assembly (11) is inserted along the transverse slot (7), the driving column (22) is fitted and inserted with the hook groove (28).

3. The high-strength ceramic insulator according to claim 2, wherein: A supporting screw ring (14) is threadedly and rotatably installed on the lower stud (2). An insulating gasket ring (13) is provided at the upper end of the supporting screw ring (14). The upper end of the insulating gasket ring (13) is fixed to the lower end surface of the insulating column (6). An upper clamp (9) is provided at the upper end of the upper installation member (8). The upper clamp (9) and the lower clamp (10) are fixedly cooperated to clamp the power transmission cable (12). A collar (35) that is rotatably sleeved on the limiting cross beam (4) is provided at the upper end of the lower clamp (10).

4. The high-strength ceramic insulator according to claim 1, wherein: The elastic component includes a folding tube (15), an elastic pull rod (20), and an elastic sheet ring (21). The folding tube (15) is located between the lower installation groove (19) and the upper insertion rod (3). The inner sides of adjacent annular folding plates of the folding tube (15) are connected by the elastic sheet ring (21). The elastic sheet ring (21) is supported between adjacent annular folding plates. The elastic sheet ring (21) is an insulating plastic part. A plurality of groups of elastic pull rods (20) that are circumferentially arrayed are provided on the inner circle of the elastic sheet ring (21).

5. A high-strength porcelain insulator according to claim 2, wherein: A pair of extension arms (17) are arranged on the upper insertion rod (3). A pair of vertical slots communicating with the transverse slots (7) are arranged on the lower mounting groove (19). The extension arms (17) are inserted along the vertical slots. Through holes (18) corresponding to the transverse slots (7) are arranged at the upper ends of the extension arms (17). A pair of support columns (25) are arranged on the insertion rod assembly (11). The outer diameter of the support columns (25) is smaller than the outer diameter of the driving column (22). The pair of support columns (25) are respectively inserted into the through holes (18) on the symmetrically distributed extension arms (17).

6. The high-strength porcelain insulator according to claim 5, characterized in that: On one side of the notch position of the hook groove (28), an arc groove extending inwards is arranged. A telescopic arc plate (29) is slidably inserted and installed in the arc groove. One end of the telescopic arc plate (29) extends to the outside of the arc groove and is provided with a rotating seat. A rotating clamping plate (30) is rotatably installed on the rotating seat at the end of the telescopic arc plate (29). A stop block for restricting the rotation angle of the rotating clamping plate (30) is arranged on the rotating seat. A lower opening groove (24) for slidably inserting and cooperating with the rotating clamping plate (30) is arranged on the arc outer wall of the driving column (22). The two side walls of the rotating clamping plate (30) are attached to the two inner walls of the lower opening groove (24).

7. The high-strength porcelain insulator according to claim 6, wherein: A clamping groove is arranged at one end of the notch position of the hook groove (28) far from the telescopic arc plate (29). The clamping groove can cooperate with the end of the rotating clamping plate (30). Elastic pin rods (32) are symmetrically arranged at the inner ends of both ends of the clamping groove. The gap width between the pair of elastic pin rods (32) is smaller than the width of the rotating clamping plate (30). A through hole (31) is arranged at the end of the rotating clamping plate (30). The through hole (31) can cooperate with the elastic pin rod (32) for insertion. The elastic pin rod (32) is elastically inserted into the inner wall of the clamping groove.

8. A high-strength porcelain insulator according to claim 7, characterized in that: A limiting disc (23) is arranged at the other end of the insertion rod assembly (11). An enlarged-diameter half ring (33) is arranged at the lower end of the limiting disc (23). The outer port of the transverse slot (7) is provided with an outer contour adapted to the limiting disc (23) and the enlarged-diameter half ring (33). The inner diameter of the inner side of the port of the transverse slot (7) is set to be the same as the outer diameter of the enlarged-diameter half ring (33).

9. The high-strength porcelain insulator according to claim 8, characterized in that: A spring (26) is arranged at one end of the insertion rod assembly (11). The spring (26) abuts between the end of the insertion rod assembly (11) and the inner wall of the transverse slot (7). An arc groove for fitting with the arc outer wall of the telescopic arc plate (29) is arranged on the lower inner wall of the square hole (16).

10. A high-strength porcelain insulator according to claim 9, characterized in that: Multiple groups of protrusions (34) distributed in a circumferential array are arranged on the enlarged-diameter half ring (33). Multiple groups of hole grooves are arranged on the inner side of the port of the transverse slot (7). The positions of the hole grooves are circumferentially misaligned with the protrusions (34).

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