A combined insulator for electric power

Abstract

The present invention belongs to the technical field of insulators, and in particular to a combined insulator for electric power. The following scheme is proposed, including an insulator body, wherein the insulator body is composed of a connecting rod and a plurality of insulating parts, and the plurality of insulating parts are equidistantly sleeved on the outer wall of the connecting rod, the connecting rod is made of metal, the insulating parts are made of ceramic, and the insulating parts are umbrella-shaped. One end of the connecting rod is connected to a mounting seat by bolts, and the outer wall of the mounting seat is provided with a plurality of mounting holes. The other end of the connecting rod is connected to a support frame by bolts, and a restraining mechanism is arranged inside the support frame. In the present invention, the piston plate will push the extension plate to extend out from the inside of the pull-out groove under the action of air pressure, so as to facilitate the sealing of the top of the support frame, thereby facilitating the prevention of the transmission line from swinging under the action of wind force and causing the transmission line to fall off the insulator, and can improve the stability of the insulator installation, thereby facilitating the fixing of the insulator.

Description

Technical Field

[0001] The invention relates to the field of insulators, and in particular to a combined insulator for electric power. Background Art

[0002] Insulators are a special type of insulating control component that can play an important role in overhead transmission lines. They are composed of two major parts: insulating parts and connecting fittings. At present, transmission lines generally use insulators for lightning protection and strength support. Insulators require high strength and need to be used for a long time and support high-voltage lines. The main function of insulators is to achieve electrical insulation and mechanical fixation.

[0003] After searching, the Chinese patent application with application publication number CN111063495B discloses a combined insulator, which belongs to the technical field of auxiliary parts for high-voltage lines. It solves the problem that the tensile strength of existing insulators is insufficient and the physical resistance needs to be improved. It includes an insulator body for electrical isolation; a positioning platform arranged on both sides of the insulator body and clamped and positioned; a reinforcement ring tightened between the positioning platforms to become an internal reinforcement rib; an umbrella skirt arranged on the outside of the insulator body and the reinforcement ring and providing protection for them; a lightning protection voltage ring group arranged on the outside of the positioning platform for lightning protection; a mounting seat for fixing the high-voltage line is provided on the positioning platform on the front side; a fixing seat for installing and positioning the insulator is provided on the positioning platform on the rear side; the reinforcement ring is evenly arranged in multiples, and the reinforcement ring can provide the insulator with better tensile strength and toughness. The reinforcement ring also pulls the positioning platforms on both sides together on the insulator body, making the fit tighter and further improving the mechanical properties of the insulator.

[0004] When the transmission line is supported by insulators, since the transmission line is erected in mid-air, when there is windy weather, the wind will blow the transmission line to swing, and the transmission line may fall off the insulator during the swinging process, thus affecting the protection and support of the transmission line. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that since the transmission line is erected in mid-air, when there is wind, the wind will blow the transmission line to swing, and the transmission line may fall off the insulator during the swinging process, thereby affecting the protection and support of the transmission line, and a combined insulator for electric power is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A combined insulator for electric power comprises an insulator body, wherein the insulator body is composed of a connecting rod and a plurality of insulating parts, and the plurality of insulating parts are sleeved on the outer wall of the connecting rod at equal distances, the connecting rod is made of metal, the insulating parts are made of ceramic, and the insulating parts are umbrella-shaped, one end of the connecting rod is connected to a mounting seat by bolts, and a plurality of mounting holes are provided on the outer wall of the mounting seat, the other end of the connecting rod is connected to a support frame by bolts, and a restraint mechanism is provided inside the support frame.

[0008] Preferably, the constraint mechanism includes a cross plate, two fixed frames, multiple sliding rods and multiple supporting rollers, and the two sides of the cross plate are connected to the two sides opposite to the supporting frames near the bottom by bolts, the top of the cross plate is penetrated by a sliding opening, both sides of the inner wall of the sliding opening are slidably connected with sliding blocks, the top of the sliding opening is penetrated by a threaded opening, the inner wall of the threaded opening is threadedly connected with a threaded column, the top of the threaded column is welded to the bottom of the fixed frame, a third spring is connected to one side of the fixed frame and the supporting frame by bolts, the two ends of the sliding rod are connected to the fixed frame by bolts, and the supporting roller is slidably sleeved on the outer wall of the sliding rod.

[0009] Preferably, a top plate is slidably sleeved between the outer walls of the two sliding rods, a push rod is welded to the top of the top plate, a mounting hole is opened through the top of the fixing frame, a sleeve is connected to the inner wall of the mounting hole by bolts, a push plate is slidably connected to the inner wall of the sleeve at the bottom, the bottom of the push plate is welded to the top of the push rod, a fourth spring is arranged between the two sides of the top of the push plate and the sleeve, a pull-out groove is opened at the top position on the opposite sides of the support frame, a piston plate is slidably connected to the inner wall of the pull-out groove, a second spring is connected to one side of the piston plate and the pull-out groove by bolts, an extension plate is connected to the other side of the piston plate by bolts, the extension plate is slidably connected to the inner wall of the pull-out groove, and a conduit is arranged between one side of the bottom of the pull-out groove and the sleeve.

[0010] Preferably, the inner walls on both sides opposite to each other of the sliding opening are provided with positioning grooves, and the inner walls of the two positioning grooves are slidably connected with positioning blocks, and the positioning blocks are connected to the sliding block by bolts.

[0011] Preferably, the outer wall of the support roller is provided with a plurality of ridges, and the ridges are made of elastic silicone material, and a plurality of anti-skid grooves are provided on one side of the ridges, and the anti-skid grooves are provided obliquely downward.

[0012] Preferably, a notch is provided at the top of the mounting seat, support grooves are provided on both sides of the top of the mounting seat, two support grooves are symmetrically distributed on both sides of the notch, and a mounting mechanism is provided between the two support grooves and the notch.

[0013] Preferably, the mounting mechanism consists of a pressure plate and two fixed plates, and the pressure plate is slidably connected to the inner wall of the slot, the two fixed plates are slidably connected to the inner wall of the support slot, a first spring is bolted to the two sides of the bottom of the fixed plate and the support slot, a plurality of tooth blocks are arranged on the top of the fixed plate, and a transmission assembly is arranged on both sides of the outer wall of the pressure plate and between the two fixed plates.

[0014] Preferably, the transmission assembly consists of a first rack, a second rack and a gear, a through opening is provided between the inner walls on both sides of the notch and the two supporting grooves, a rotating shaft is rotatably connected between the opposite sides of the through opening through a bearing, the gear is fixedly sleeved on the outer wall of the rotating shaft, fixing grooves are provided at both ends of the outer wall on one side of the fixing plate, the inner wall of the fixing groove is connected to the first rack by bolts, a connecting groove is provided on the outer wall of the pressure plate, the inner wall of the connecting groove is fixedly connected to the second rack, the two sides of the gear are respectively meshed with the first rack and the second rack, and the first rack and the second rack are distributed on both sides of the gear.

[0015] The beneficial effects of the present invention are:

[0016] The present invention provides a constraint mechanism. When the insulator is used, the insulator is fixed at a suitable position through the mounting seat. After the fixing is completed, the transmission line is supported by the support frame. During this period, the transmission line is constrained by the constraint mechanism. When encountering strong winds, the transmission line will swing under the action of wind force. The transmission line will reduce the amplitude of the swing under the action of the third spring and the support roller, thereby preventing the transmission line from falling off the insulator due to the large swing amplitude of the transmission line, thereby affecting the support and protection of the transmission line. During this period, when the transmission line slides upward under the action of wind force, Since the friction transmission line will drive the support roller to move upward during the sliding process, the support roller will drive the top plate and the push rod to lift up during the movement, and the push plate will slide inside the sleeve under the action of the push rod. The gas inside the sleeve will be transported to the inside of the drawing groove through the conduit after being compressed. At this time, the air pressure inside the drawing groove will increase with the input of the gas, and the piston plate will push the extension plate to extend from the inside of the drawing groove under the action of the air pressure, so as to seal the top of the support frame, thereby preventing the transmission line from swinging under the action of wind and causing the transmission line to fall off the insulator;

[0017] The present invention provides an installation mechanism. When installing the insulator, the mounting seat is installed in a suitable position through the mounting hole. During this period, the pressure plate will slide toward the inside of the slot under the action of pressure. During this period, the second rack will move with the movement of the pressure plate. The second rack will contact the gear when moving downward, so that the gear drives the first rack to move upward through meshing. At this time, the first rack will drive the fixing plate to extend from the inside of the supporting groove when moving upward, and make the tooth block act on the installation position, so that the stability of the insulator installation can be improved through the tooth block, thereby facilitating the fixing of the insulator and preventing the insulator from loosening when being fixed, thereby affecting the support of the transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a combined insulator for electric power proposed by the present invention;

[0019] Figure 2 A schematic diagram of the insulator body structure of a combined insulator for power use proposed by the present invention;

[0020] Figure 3 A schematic diagram of the structure of an installation mechanism of a combined insulator for power use proposed by the present invention;

[0021] Figure 4 A schematic diagram of the structure of a transmission assembly of a combined insulator for electric power proposed by the present invention;

[0022] Figure 5 A schematic diagram of the structure of a restraining mechanism of a combined insulator for electric power proposed by the present invention;

[0023] Figure 6 A schematic cross-sectional view of a restraining mechanism of a combined insulator for electric power proposed by the present invention;

[0024] Figure 7 A schematic diagram of the partial structure of a combined insulator for electric power proposed by the present invention;

[0025] Figure 8 The present invention is a schematic diagram of the support roller structure of a combined insulator for electric power.

[0026] In the attached drawings: 1, mounting mechanism; 2, insulator body; 3, support frame; 4, restraint mechanism; 5, connecting rod; 6, insulating member; 7, mounting seat; 8, notch; 9, supporting groove; 10, fixing plate; 11, through-hole; 12, pressing plate; 13, connecting groove; 14, transmission assembly; 15, mounting hole; 16, tooth block; 17, first spring; 18, first rack; 19, rotating shaft; 20, gear; 21, second rack; 22, fixing Groove; 23, horizontal plate; 24, sliding mouth; 25, positioning groove; 26, fixing frame; 27, pulling groove; 28, piston plate; 29, extension plate; 30, second spring; 31, guide tube; 32, third spring; 33, sleeve; 34, fourth spring; 35, push plate; 36, slider; 37, positioning block; 38, threaded column; 39, slide rod; 40, support roller; 41, top plate; 42, push rod; 43, convex ridge; 44, anti-slip groove. DETAILED DESCRIPTION

[0027] Example 1, reference Figure 1-Figure 8 A combined insulator for electric power includes an insulator body 2, which is composed of a connecting rod 5 and a plurality of insulating members 6, and the plurality of insulating members 6 are equidistantly sleeved on the outer wall of the connecting rod 5, the connecting rod 5 is made of metal, the insulating members 6 are made of ceramic, and the insulating members 6 are umbrella-shaped. One end of the connecting rod 5 is connected to a mounting seat 7 by bolts, and a plurality of mounting holes 15 are provided on the outer wall of the mounting seat 7, the other end of the connecting rod 5 is connected to a support frame 3 by bolts, and a restraining mechanism 4 is arranged inside the support frame 3 to reduce the amplitude of the swing, thereby preventing the transmission line from falling off the insulator due to the large swing amplitude of the transmission line, thereby affecting the support and protection of the transmission line.

[0028] On the basis of the above, the constraint mechanism 4 includes a transverse plate 23, two fixed frames 26, multiple slide bars 39 and multiple support rollers 40, and the two sides of the transverse plate 23 are connected by bolts near the bottom of the two sides opposite to the support frame 3, a sliding opening 24 is penetrated through the top of the transverse plate 23, and both sides of the inner wall of the sliding opening 24 are slidably connected with sliders 36, a threaded opening is penetrated through the top of the sliding opening 24, and the inner wall of the threaded opening is threadedly connected with a threaded column 38, the top of the threaded column 38 is welded to the bottom of the fixed frame 26, a third spring 32 is bolted to one side of the fixed frame 26 and the support frame 3, the two ends of the slide bar 39 are connected to the fixed frame 26 by bolts, and the support roller 40 is slidably sleeved on the outer wall of the slide bar 39.

[0029] On the basis of the above, a top plate 41 is slidably sleeved between the outer walls of the two sliding rods 39, a push rod 42 is welded to the top of the top plate 41, a mounting opening is opened through the top of the fixing frame 26, and a sleeve 33 is connected to the inner wall of the mounting opening by bolts, and a push plate 35 is slidably connected to the inner wall of the sleeve 33 at the bottom, and the bottom of the push plate 35 is welded to the top of the push rod 42, and a fourth spring 34 is arranged between the two sides of the top of the push plate 35 and the sleeve 33, and a pull-out groove 27 is opened at the top position on the opposite sides of the support frame 3, and a piston plate 28 is slidably connected to the inner wall of the pull-out groove 27, and a second spring 30 is bolted to one side of the piston plate 28 and the pull-out groove 27, and an extension plate 29 is connected to the other side of the piston plate 28 by bolts, and the extension plate 29 is slidably connected to the inner wall of the pull-out groove 27, and a conduit 31 is arranged between one side of the bottom of the pull-out groove 27 and the sleeve 33.

[0030] On the basis of the above, positioning grooves 25 are provided on the inner walls of the two opposite sides of the sliding opening 24, and the inner walls of the two positioning grooves 25 are slidably connected with positioning blocks 37, and the positioning blocks 37 are connected to the sliding blocks 36 by bolts.

[0031] On the basis of the above, the outer wall of the support roller 40 is provided with a plurality of ridges 43, and the ridges 43 are made of silicone elastic material, and a plurality of anti-skid grooves 44 are provided on one side of the ridges 43, and the anti-skid grooves 44 are inclined downward. When the insulator is used, the insulator is fixed in a suitable position by the mounting seat 7. After the fixation is completed, the transmission line is supported by the support frame 3. During this period, the transmission line is constrained by the constraint mechanism 4. When encountering strong winds, the transmission line will swing under the action of the wind. The transmission line will reduce the amplitude of the swing under the action of the third spring 32 and the support roller 40, thereby preventing the transmission line from falling off the insulator due to the large swing amplitude of the transmission line, thereby affecting the support and protection of the transmission line. During this period, When the transmission line slides upward under the action of wind, the transmission line will drive the support roller 40 to move upward due to friction during the sliding process. At this time, the support roller 40 will drive the top plate 41 and the push rod 42 to lift up when moving, and the push plate 35 will slide inside the sleeve 33 under the action of the push rod 42. The gas inside the sleeve 33 will be transported to the inside of the withdrawal groove 27 through the conduit 31 after being compressed. At this time, the air pressure inside the withdrawal groove 27 will increase with the input of gas, and the piston plate 28 will push the extension plate 29 to extend from the inside of the withdrawal groove 27 under the action of the air pressure, so as to facilitate the sealing of the top of the support frame 3, thereby preventing the transmission line from swinging under the action of wind and causing the transmission line to fall off the insulator.

[0032] Example 2, reference Figure 1-Figure 4, a combined insulator for electric power. Compared with Example 1, on the basis of Example 1, a notch 8 is provided on the top of a mounting seat 7, support grooves 9 are provided on both sides of the top of the mounting seat 7, two support grooves 9 are symmetrically distributed on both sides of the notch 8, and a mounting mechanism 1 is provided between the two support grooves 9 and the notch 8.

[0033] On the basis of the above, the mounting mechanism 1 is composed of a pressure plate 12 and two fixed plates 10, and the pressure plate 12 is slidably connected to the inner wall of the slot 8, and the two fixed plates 10 are slidably connected to the inner wall of the support slot 9. A first spring 17 is bolted to the two sides of the bottom of the fixed plate 10 and the support slot 9, and a plurality of tooth blocks 16 are arranged on the top of the fixed plate 10. A transmission assembly 14 is arranged on both sides of the outer wall of the pressure plate 12 and between the two fixed plates 10.

[0034] On the basis of the above, the transmission assembly 14 is composed of a first rack 18, a second rack 21 and a gear 20. A through opening 11 is provided between the inner walls of the two sides of the notch 8 and the two supporting grooves 9. A rotating shaft 19 is rotatably connected between the opposite sides of the through opening 11 through a bearing. The gear 20 is fixedly sleeved on the outer wall of the rotating shaft 19. Both ends of the outer wall of one side of the fixed plate 10 are provided with fixed grooves 22. The inner wall of the fixed groove 22 is connected to the first rack 18 by bolts. The outer wall of the pressure plate 12 is provided with a connecting groove 13. The inner wall of the connecting groove 13 is fixedly connected to the second rack 21. The two sides of the gear 20 are respectively meshed with the first rack 18 and the second rack 21. The first rack 18 and the second rack 21 are distributed on both sides of the gear 20. When installing the insulator, the mounting seat 7 is installed in a suitable position through the mounting hole 15. During this period, the pressure plate 12 will slide toward the inside of the slot 8 under the action of pressure. During this period, the second rack 21 will move with the movement of the pressure plate 12. The second rack 21 will contact the gear 20 when moving downward, so that the gear 20 drives the first rack 18 to move upward through meshing. At this time, the first rack 18 will drive the fixing plate 10 to extend from the inside of the support groove 9 when moving upward, and make the tooth block 16 act on the installation position, so that the stability of the insulator installation can be improved through the tooth block 16, thereby facilitating the fixing of the insulator and preventing the insulator from loosening when fixed, thereby affecting the support of the transmission line.

[0035] 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. An assembled insulator for electric power, comprising an insulator body (2), the insulator body (2) being composed of a connecting rod (5) and a plurality of insulating members (6), wherein the plurality of insulating members (6) are sleeved on the outer wall of the connecting rod (5) at equal distances, the connecting rod (5) being made of metal, the insulating members (6) being made of ceramic, and the insulating members (6) being in the shape of an umbrella. It is characterized in that One end of the connecting rod (5) is connected to a mounting seat (7) by bolts, and the outer wall of the mounting seat (7) is provided with a plurality of mounting holes (15); the other end of the connecting rod (5) is connected to a support frame (3) by bolts, and a restraining mechanism (4) is provided inside the support frame (3), the restraining mechanism (4) comprising a transverse plate (23), two fixing frames (26), a plurality of sliding rods (39) and a plurality of supporting rollers (40); the two sides of the transverse plate (23) are connected to the support frame (3) at positions close to the bottom by bolts, the top of the transverse plate (23) is provided with a sliding opening (24), and the two sides of the inner wall of the sliding opening (24) are both slidably connected A slider (36) is provided, a threaded opening is formed through the top of the slide opening (24), a threaded column (38) is threadedly connected to the inner wall of the threaded opening, the top of the threaded column (38) is welded to the bottom of the fixed frame (26), a third spring (32) is connected to one side of the fixed frame (26) and the support frame (3) by bolts, both ends of the slide rod (39) are connected to the fixed frame (26) by bolts, a support roller (40) is slidably sleeved on the outer wall of the slide rod (39), a top plate (41) is slidably sleeved between the outer walls of the two slide rods (39), a push rod (42) is welded to the top of the top plate (41), and a threaded opening is formed through the top of the fixed frame (26). A mounting opening is provided, the inner wall of the mounting opening is connected to a sleeve (33) by bolts, a push plate (35) is slidably connected to the inner wall of the sleeve (33) at the bottom, the bottom of the push plate (35) is welded to the top of the push rod (42), a fourth spring (34) is arranged between the two sides of the top of the push plate (35) and the sleeve (33), the two opposite sides of the support frame (3) are provided with a draw groove (27) at the top, the inner wall of the draw groove (27) is slidably connected to a piston plate (28), one side of the piston plate (28) is connected to the draw groove (27) by bolts, and the other side of the piston plate (28) is connected to an extension spring (30) by bolts. The extension plate (29) is slidably connected to the inner wall of the pull-out groove (27); a guide tube (31) is provided between one side of the bottom of the pull-out groove (27) and the sleeve (33); positioning grooves (25) are provided on the inner walls of the two opposite sides of the sliding opening (24); and positioning blocks (37) are slidably connected to the inner walls of the two positioning grooves (25); the positioning blocks (37) and the slider (36) are connected by bolts; a plurality of ridges (43) are provided on the outer wall of the support roller (40); and the ridges (43) are made of a silicone elastic material; and a plurality of anti-skid grooves (44) are provided on one side of the ridges (43); and the anti-skid grooves (44) are inclined downward.

2. A combined insulator for electric power according to claim 1, It is characterized in that The top of the mounting seat (7) is provided with a notch (8), and both sides of the top of the mounting seat (7) are provided with support grooves (9), the two support grooves (9) are symmetrically distributed on both sides of the notch (8), and a mounting mechanism (1) is provided between the two support grooves (9) and the notch (8).

3. A combined insulator for electric power according to claim 2, It is characterized in that The mounting mechanism (1) is composed of a pressing plate (12) and two fixing plates (10), wherein the pressing plate (12) is slidably connected to the inner wall of the slot (8), and the two fixing plates (10) are slidably connected to the inner wall of the support slot (9). A first spring (17) is connected between the two sides of the bottom of the fixing plate (10) and the support slot (9) by bolts, a plurality of tooth blocks (16) are arranged on the top of the fixing plate (10), and a transmission assembly (14) is arranged between the two sides of the outer wall of the pressing plate (12) and the two fixing plates (10).

4. A combined insulator for electric power according to claim 3, It is characterized in that The transmission assembly (14) is composed of a first rack (18), a second rack (21) and a gear (20). A through opening (11) is provided between the inner walls of both sides of the notch (8) and the two support grooves (9). A rotating shaft (19) is rotatably connected between the two opposite sides of the through opening (11) via a bearing. The gear (20) is fixedly sleeved on the outer wall of the rotating shaft (19). Both ends of the outer wall of one side of the fixing plate (10) are provided with fixing grooves (22). The inner wall of the fixing groove (22) is connected to the first rack (18) via bolts. The outer wall of the pressure plate (12) is provided with a connecting groove (13). The inner wall of the connecting groove (13) is fixedly connected to the second rack (21). The two sides of the gear (20) are respectively meshed with the first rack (18) and the second rack (21). The first rack (18) and the second rack (21) are distributed on both sides of the gear (20).

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