Detachable composite insulator

Abstract

The utility model belongs to the technical field of composite insulators, and particularly relates to a detachable composite insulator, which comprises a mounting base, a group of core rods are sequentially stacked at the center of the top wall of the mounting base, the core rod at the lowest layer is fixedly connected with the top wall of the mounting base, and the core rod at the topmost layer is connected with a fixed block through a mounting piece; slots are formed in the top walls of the core rods; first insertion blocks are inserted into the insertion grooves correspondingly, and the tops of the first insertion blocks are fixedly connected with the bottom wall of the previous core rod. T-shaped pressing blocks are arranged on the two sides of the outer circle walls of the core rods and connected with the first inserting blocks through limiting assemblies. The utility model provides a detachable composite insulator to solve the problems that in the prior art, most existing composite insulators are of an integrated structure, the service life of the composite insulators is long, once one umbrella skirt is damaged, the whole insulator needs to be replaced, and the maintenance cost is increased; the height cannot be adjusted, and the adaptability is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite insulators, in particular to a detachable composite insulator. Background Art

[0002] In the early years, insulators were mostly used on electric poles. With the development of science and technology, many disc-shaped insulators were hung on one end of the high-voltage electric wire connection tower. They are used to increase the creepage distance and are usually made of glass or ceramics. They are called insulators. Insulators play two basic roles in overhead transmission lines, namely supporting the conductors and preventing the current from returning to the ground. These two roles must be guaranteed. Insulators should not fail due to various electromechanical stresses caused by changes in environmental and electrical load conditions. Otherwise, the insulators will not play a significant role and will damage the use and operation life of the entire line.

[0003] In the prior art, most of the existing composite insulators are integrated structures. Since the composite insulators have a long service life, once a part thereof is damaged, the entire insulator needs to be replaced, which increases the maintenance cost. In addition, the height cannot be adjusted and the adaptability is low. Therefore, the utility model provides a detachable composite insulator. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art and solve the problems in the prior art that most of the existing composite insulators are integrated structures, and since the composite insulators have a long service life, once one of the sheds is damaged, the entire insulator needs to be replaced, which increases the maintenance cost; and the height cannot be adjusted and the adaptability is low, the utility model proposes a detachable composite insulator.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a detachable composite insulator described in the utility model comprises a mounting base, a group of core rods are stacked in sequence at the center of the top wall of the mounting base, and the lowest layer of core rods is fixedly connected to the top wall of the mounting base, and the top layer of core rods is connected to a fixed block through a mounting piece; a group of the top walls of the core rods are provided with slots; a group of the slots are inserted with a first plug-in block, and the top of the first plug-in block is fixedly connected to the bottom wall of the previous core rod; a group of the outer circular walls of the core rods are provided with T-shaped pressing blocks on both sides, and the T-shaped pressing blocks are connected to the first plug-in block through a limiting component; a through groove is provided on the side wall of the fixed block; a group of the outer circular walls of the core rods are slidably sleeved with an umbrella skirt; a group of the outer circular walls of the core rods are fixedly connected with a group of support blocks, and the top wall of the support block is in contact with the bottom wall of the umbrella skirt.

[0006] Preferably, the limiting assembly includes a first slide groove, and a group of first insert blocks have both side walls provided with a first slide groove; a first inclined block is slidably connected in the first slide groove; a first spring is fixedly connected to the side wall of the first inclined block, and the other end of the first spring is fixedly connected to the inner wall of the first slide groove; a group of second slide grooves are opened on both sides of the outer circular wall of the core rod, and the position of the second slide groove corresponds to the first slide groove, and the T-shaped pressing block slides in the second slide groove; a second spring is fixedly connected to the side wall of the second slide groove, and the other end of the second spring is fixedly connected to the side wall of the T-shaped pressing block.

[0007] Preferably, the mounting member includes a second plug block, and the second plug block is fixedly connected to the bottom wall of the fixed block; third slide grooves are provided on both side walls of the second plug block, and the third slide grooves correspond to the second slide grooves; a second inclined block is slidably connected in the third slide groove; a third spring is fixedly connected to the side wall of the second inclined block, and the other end of the third spring is fixedly connected to the inner wall of the third slide groove.

[0008] Preferably, an arc-shaped limit plate is slidably connected between the two inner side walls of the through slot; a knob is threadedly connected to the top wall of the fixed block, and the bottom end of the knob extends into the through slot and contacts the top wall of the arc-shaped limit plate.

[0009] Preferably, a curved anti-slip pad is fixedly connected to the bottom wall of the curved limiting plate.

[0010] Preferably, both sides of the bottom ends of the first plug block and the second plug block are inclined.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. The utility model discloses a detachable composite insulator. By moving the T-shaped pressing block, the limiting position of the first plug-in block and the second plug-in block can be contacted, so that the core rod and the fixed block can be removed. Moreover, the number of core rods can be reduced or increased as needed through the slot and the first plug-in block, so that the height adjustment can be achieved. When the pressing block moves into the core rod, the limiting position of the shed is also released, so that the shed can be removed. The above method well avoids the problems that most of the existing composite insulators are integrated structures. Since the composite insulator has a long service life, once one of the sheds is damaged, the entire insulator needs to be replaced, which increases the maintenance cost; and the height adjustment cannot be performed, and the adaptability is low.

[0013] 2. The detachable composite insulator described in the utility model has an arc-shaped limit plate slidably connected between the two inner walls of the through slot, and the top wall of the fixed block is threadedly connected with a knob, and the bottom end of the knob extends into the through slot and contacts the top wall of the arc-shaped limit plate. It can be installed in lines with different diameters, further improving its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 yes Figure 1 A partial enlarged view of the middle part;

[0017] Figure 3 It is a partial cross-sectional view of the utility model;

[0018] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0019] Figure 5 yes Figure 3 A partial enlarged view of point C in the middle;

[0020] Figure 6 It is a partial exploded view of the present utility model.

[0021] In the figure: 1. mounting base; 2. core rod; 3. fixing block; 4. slot; 5. first plug block; 6. T-shaped pressing block; 7. through slot; 8. umbrella skirt; 9. support block; 10. first slide groove; 11. first inclined block; 12. first spring; 13. second slide groove; 14. second spring; 15. second plug block; 16. third slide groove; 17. second inclined block; 18. third spring; 19. arc-shaped limit plate; 20. knob; 21. arc-shaped anti-skid pad. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 6As shown, a detachable composite insulator described in the utility model comprises a mounting base 1, a group of core rods 2 are stacked in sequence at the center of the top wall of the mounting base 1, and the lowest layer of core rods 2 are fixedly connected to the top wall of the mounting base 1, and the top layer of core rods 2 are connected to a fixing block 3 through a mounting piece; a group of the top walls of the core rods 2 are provided with slots 4; a group of the slots 4 are inserted with first plug-in blocks 5, and the top of the first plug-in blocks 5 is fixedly connected to the bottom wall of the upper core rod 2; a group of the outer circular walls of the core rods 2 are provided with T-shaped pressing blocks 6 on both sides, and the T-shaped pressing blocks 6 are connected to the first plug-in blocks 5 through a limiting assembly; a through groove 7 is provided on the side wall of the fixing block 3; a group of the outer circular walls of the core rods 2 are slidably sleeved with umbrella skirts 8; a group of the outer circular walls of the core rods 2 are fixedly connected with a group of supporting Block 9, and the top wall of the supporting block 9 is in contact with the bottom wall of the shed 8; when working, the T-shaped pressing block 6 can be moved to contact the limit of the first plug block 5 and the second plug block 15, so that the core rod 2 and the fixed block 3 can be disassembled, and the number of core rods 2 can be reduced or increased as needed through the slot 4 and the first plug block 5, so that the height adjustment can be achieved. When the pressing block moves into the core rod 2, the limit of the shed 8 is also released, so that the shed 8 can be disassembled. The above method well avoids the problems that most of the existing composite insulators are integrated structures. Due to the long service life of the composite insulator, once one of the sheds 8 is damaged, the entire insulator needs to be replaced, which increases the maintenance cost; and the height adjustment cannot be performed, and the adaptability is low.

[0024] The limiting assembly includes a first slide groove 10, and a group of first plug blocks 5 have both side walls provided with first slide grooves 10; a first inclined block 11 is slidably connected in the first slide groove 10; a first spring 12 is fixedly connected to the side wall of the first inclined block 11, and the other end of the first spring 12 is fixedly connected to the inner wall of the first slide groove 10; a group of second slide grooves 13 are opened on both sides of the outer circular wall of the mandrel 2, and the position of the second slide groove 13 corresponds to the first slide groove 10, and the T-shaped pressing block 6 slides in the second slide groove 13; a second spring 14 is fixedly connected to the side wall of the second slide groove 13, and the other end of the second spring 14 is fixedly connected to the side wall of the T-shaped pressing block 6; when working, When the first plug block 5 moves into the slot 4, the vertical downward force generates a horizontal component through the inclined surface of the first inclined block 11, causing the first inclined block 11 to move into the first slide groove 10. Until the first inclined block 11 passes through the second slide groove 13, the elastic force of the first spring 12 causes the first inclined block 11 to enter the second slide groove 13, thereby limiting the first plug block 5; the T-shaped pressing block 6 moves inward, so that the end of the T-shaped pressing block 6 presses against the first inclined block 11, driving the first inclined block 11 into the first slide groove 10, so that the core rod 2 can be disassembled, and the second spring 14 ensures that one end of the T-shaped pressing block 6 always extends out of the core rod 2 in a natural state.

[0025] The mounting member includes a second plug block 15, and the bottom wall of the fixed block 3 is fixedly connected to the second plug block 15; the second side walls of the second plug block 15 are provided with third slide grooves 16, and the third slide grooves 16 correspond to the second slide grooves 13; a second inclined block 17 is slidably connected in the third slide groove 16; a third spring 18 is fixedly connected to the side wall of the second inclined block 17, and the other end of the third spring 18 is fixedly connected to the inner wall of the third slide groove 16; when working, when the second plug block 15 at the bottom end of the fixed block 3 is inserted into the slot 4 of the top wall of the topmost core rod 2, the vertical downward force generates a horizontal component force through the inclined surface of the second inclined block 17, so that the second inclined block 17 moves into the third slide groove 16, until the second inclined block 17 passes through the second slide groove 13, the elastic force of the third spring 18 makes the second inclined block 17 enter the second slide groove 13, thereby realizing the limitation of the second plug block 15.

[0026] An arc-shaped limit plate 19 is slidably connected between the two inner walls of the through slot 7; a knob 20 is threadedly connected to the top wall of the fixed block 3, and the bottom end of the knob 20 extends into the through slot 7 and contacts the top wall of the arc-shaped limit plate 19; during operation, the arc-shaped limit plate 19 is slidably connected between the two inner walls of the through slot 7, and the top wall of the fixed block 3 is threadedly connected to the knob 20, and the bottom end of the knob 20 extends into the through slot 7 and contacts the top wall of the arc-shaped limit plate 19, so that it can be installed in lines of different diameters, further improving practicality.

[0027] The bottom wall of the arc-shaped limit plate 19 is fixedly connected with an arc-shaped anti-skid pad 21 . During operation, the arc-shaped limit plate 19 is fixedly connected with the bottom wall of the arc-shaped limit plate 19 to prevent the arc-shaped limit plate 19 from sliding relative to the circuit and to avoid damaging the circuit surface.

[0028] Both sides of the bottom ends of the first plug block 5 and the second plug block 15 are provided with inclined surfaces; during operation, the first plug block 5 and the second plug block 15 are inserted into the slot 4 through the inclined surfaces on both sides of the bottom ends of the first plug block 5 and the second plug block 15.

[0029] Working principle: By moving the T-shaped pressing block 6, the first plug block 5 and the second plug block 15 can be contacted to limit the position, so that the core rod 2 and the fixed block 3 can be disassembled, and the number of core rods 2 can be reduced or increased as needed through the slot 4 and the first plug block 5, so that the height adjustment can be achieved. When the pressing block moves into the core rod 2, the limit of the shed 8 is also released, so that the shed 8 can be disassembled. The above method well avoids the problem that most of the existing composite insulators are integrated structures. Due to the long service life of the composite insulator, once one of the sheds 8 is damaged, it needs to be replaced. The entire insulator needs to be replaced, which increases the maintenance cost; and the height cannot be adjusted, which has the problem of low adaptability; when the first plug block 5 moves into the slot 4, the vertical downward force generates a horizontal component force through the inclined surface of the first inclined block 11, so that the first inclined block 11 moves into the first slide groove 10, until the first inclined block 11 passes through the second slide groove 13, and the elastic force of the first spring 12 makes the first inclined block 11 enter the second slide groove 13, thereby realizing the limitation of the first plug block 5; the T-shaped pressing block 6 moves inward, so that the end of the T-shaped pressing block 6 presses against the first inclined block 11 to drive the first inclined block 1 1 enters the first slide groove 10, so that the core rod 2 can be disassembled, and the second spring 14 makes one end of the T-shaped pressing block 6 always extend out of the core rod 2 in the natural state; when the second plug block 15 at the bottom end of the fixing block 3 is inserted into the slot 4 on the top wall of the top core rod 2, the vertical downward force generates a horizontal component force through the inclined surface of the second inclined block 17, so that the second inclined block 17 moves into the third slide groove 16, until the second inclined block 17 passes through the second slide groove 13, the elastic force of the third spring 18 makes the second inclined block 17 enter the second slide groove 13, so as to realize the limitation of the second plug block 15; The arc-shaped limit plate 19 is slidably connected between the two inner side walls of the through slot 7, and the top wall of the fixed block 3 is threadedly connected with a knob 20, and the bottom end of the knob 20 extends into the through slot 7 and contacts the top wall of the arc-shaped limit plate 19, so that it can be installed in lines of different diameters, further improving the practicality; an arc-shaped anti-slip pad 21 is fixedly connected to the bottom wall of the arc-shaped limit plate 19 to prevent the arc-shaped limit plate 19 from sliding relative to the line and to avoid damaging the line surface; the first plug-in block 5 and the second plug-in block 15 are inserted into the slot 4 by setting inclined surfaces on both sides of the bottom ends.

[0030] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A detachable composite insulator, characterized in that: The invention comprises a mounting base (1), wherein a group of core rods (2) are stacked in sequence at the center of the top wall of the mounting base (1), and the core rods (2) at the lowest layer are fixedly connected to the top wall of the mounting base (1), and the core rods (2) at the top layer are connected to a fixed block (3) through a mounting member; a slot (4) is provided on the top wall of each group of core rods (2); a first plug-in block (5) is inserted into each group of the slots (4), and the top of the first plug-in block (5) is fixedly connected to the bottom wall of the upper core rod (2); a T-shaped pressing block (6) is provided on both sides of the outer circular wall of each group of core rods (2), and the T-shaped pressing block (6) is connected to the first plug-in block (5) through a limiting component; a through groove (7) is provided on the side wall of the fixed block (3); an umbrella skirt (8) is slidably sleeved on the outer circular wall of each group of core rods (2); a group of support blocks (9) are fixedly connected to the outer circular wall of each group of core rods (2), and the top wall of the support block (9) contacts the bottom wall of the umbrella skirt (8).

2. A detachable composite insulator according to claim 1, characterized in that: The limiting assembly comprises a first slide groove (10), and a first slide groove (10) is provided on both side walls of a group of the first plug blocks (5); a first inclined block (11) is slidably connected in the first slide groove (10); a first spring (12) is fixedly connected to the side wall of the first inclined block (11), and the other end of the first spring (12) is fixedly connected to the inner wall of the first slide groove (10); a second slide groove (13) is provided on both sides of the outer circular wall of a group of the core rods (2), and the position of the second slide groove (13) corresponds to the first slide groove (10), and the T-shaped pressing block (6) slides in the second slide groove (13); a second spring (14) is fixedly connected to the side wall of the second slide groove (13), and the other end of the second spring (14) is fixedly connected to the side wall of the T-shaped pressing block (6).

3. A detachable composite insulator according to claim 2, characterized in that: The mounting member comprises a second plug block (15), the bottom wall of the fixed block (3) being fixedly connected to the second plug block (15); both side walls of the second plug block (15) are provided with third slide grooves (16), and the third slide grooves (16) correspond to the second slide grooves (13); a second inclined block (17) is slidably connected in the third slide groove (16); a third spring (18) is fixedly connected to the side wall of the second inclined block (17), and the other end of the third spring (18) is fixedly connected to the inner wall of the third slide groove (16).

4. A detachable composite insulator according to claim 3, characterized in that: An arc-shaped limit plate (19) is slidably connected between the two inner side walls of the through slot (7); a knob (20) is threadedly connected to the top wall of the fixed block (3), and the bottom end of the knob (20) extends into the through slot (7) and contacts the top wall of the arc-shaped limit plate (19).

5. A detachable composite insulator according to claim 4, characterized in that: The bottom wall of the arc-shaped limiting plate (19) is fixedly connected with an arc-shaped anti-slip pad (21).

6. A detachable composite insulator according to claim 5, characterized in that: Both sides of the bottom ends of the first plug block (5) and the second plug block (15) are provided with inclined surfaces.

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