CN109256739B - Insulation protection sleeve - Google Patents
Insulation protection sleeve Download PDFInfo
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- CN109256739B CN109256739B CN201811211876.5A CN201811211876A CN109256739B CN 109256739 B CN109256739 B CN 109256739B CN 201811211876 A CN201811211876 A CN 201811211876A CN 109256739 B CN109256739 B CN 109256739B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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Abstract
The invention relates to the field of electric tools, in particular to an insulating protective sleeve, which comprises an insulating protective sleeve and a limiter, wherein the protective sleeve comprises a first sub-shell and a second sub-shell, two sides of the first sub-shell and two sides of the second sub-shell are respectively provided with a drawing and inserting structure which can be mutually embedded and matched, so that the first sub-shell and the second sub-shell can be matched to form the protective sleeve, the joint surface of the protective sleeve is a folded surface, the wall of the protective sleeve is of a three-layer structure comprising an inner wall, a middle overhead layer and an outer wall, two ends of the protective sleeve are provided with first connecting structures, the limiter is sleeved on an overhead bare conductor and can be limited and fixed relative to the overhead bare conductor, and at least one end of the limiter is provided with a second connecting structure matched with the first connecting structure so as to be fixedly connected with the protective sleeve; the beneficial effects of the invention are as follows: the fixing is stable, the safety is good, the operation is convenient, and the structure is simple.
Description
Technical Field
The invention relates to the field of electric tools, in particular to an insulating protective sleeve.
Background
The high-voltage wires erected at high altitude are generally bare wires, such as common high-voltage cables of 10-35 kilovolts, and under normal conditions, the safety distance to the ground and to other buildings and plants is considered when the high-voltage wires are laid at overhead, but big trees or other plants near the high-voltage wires can be close to the high-voltage bare wires along with the continuous growth of branches, break through the safety distance and even touch the high-voltage wires, so that electric shock accidents occur, the current treatment mode generally cleans the branches near the high-voltage wires in advance, but large manpower and material resources are needed to be input, and the operation of cleaning the branches near the high-voltage wires has potential safety hazards due to the fact that the branches are close to the high-voltage wires. In addition, maintenance and construction of overhead lines can also cause operators or operating tools to approach exposed high-voltage lines, and potential safety hazards also exist.
Disclosure of Invention
In order to solve the problems, the invention aims to provide the insulating protection sleeve which is stable in fixation, good in safety, convenient to operate and simple in structure, and is used for protecting a section of overhead bare conductor close to a construction point or a plant branch, so that an electric shock accident is prevented.
The task of the invention is realized by the following technical scheme:
the utility model provides an insulation protection sleeve, includes at least one insulation protection section of thick bamboo and stopper, the protection section of thick bamboo includes first minute shell and second minute shell, and first minute shell and second minute shell are the circular arc cavity board of cross section for the fan-shaped, and the both sides limit of first minute shell and second minute shell is equipped with respectively and can embed each other complex and take out and insert the structure to can make first minute shell and second minute shell cooperation form a both ends opening, side confined protection section of thick bamboo, and the seam face of protection section of thick bamboo is the face of folding, and the inner chamber of protection section of thick bamboo supplies the aerial bare conductor to pass, and the section of thick bamboo wall of protection section of thick bamboo is the three layer structure including inner wall, middle aerial layer and outer wall, and the both ends of protection section of thick bamboo are equipped with first connection structure, the stopper cover is on the aerial bare conductor and can be spacing fixed relatively, thereby the second connection structure that the at least one end of stopper is equipped with cooperation first connection structure can with protection section of thick bamboo fixed connection.
Preferably, the stopper includes the casing, be equipped with the line chamber that crosses that supplies the naked wire of aerial to pass in the casing, its characterized in that, the bottom that crosses the line chamber is equipped with the first clamp line portion that is used for placing the naked wire of aerial, crosses the line intracavity and still is equipped with floating line ball mechanism, floating line ball mechanism includes movable briquetting, spring and inserted block, and the left side wall and/or the right side wall that cross the line chamber are equipped with the slope slide, thereby the slope slide is sharp angle and cooperates and form a toper structure with first clamp line portion, and movable briquetting's side carries out sliding connection with the slope slide, and movable briquetting's bottom is equipped with the second clamp line portion of the naked wire of cooperation first clamp line portion centre gripping, and movable briquetting upper portion is equipped with the vertical slot of opening up, and the spring is arranged in the slot, and the inserted into the slot can reciprocate in the upper and lower direction relative slot, and the top butt of inserted block crosses the top in line chamber and can reciprocate the direction relative to cross the line chamber, thereby the one end of spring pushes up the top down pushes down the inserted block to move briquetting to can drive movable briquetting along slope down to make first clamp line portion centre gripping and second clamp line portion can cooperate in the naked wire of aerial position limiting position limit to limit the wire.
Preferably, the limit mechanism comprises a plug pin and a jack arranged on the shell, one end of the plug pin can be inserted into the wire passing cavity through the jack and can block the movable block from sliding, so that the movable block positioned on the upper part of the inclined slideway cannot slide obliquely downwards to press the overhead bare conductor.
Preferably, the bolt can also prevent the movable block positioned at the lower part of the inclined slideway from sliding upwards obliquely and loosening the overhead bare conductor.
Preferably, a limiting protrusion is arranged in the slot, a vertical limiting groove is formed in the insert block, and the limiting protrusion moves in the range of the limiting groove, so that the sliding range of the movable block relative to the insert block is limited, and the movable block is prevented from sliding off the slot.
Preferably, the insert block is of a hollow structure with an opening at the lower end, and the insert block and the slot are matched to form a space for accommodating the spring.
Preferably, the shell comprises an upper shell and a lower shell, one sides of the upper shell and the lower shell are hinged, the other sides of the upper shell and the lower shell are detachably connected through buckles, and the upper shell and the lower shell are matched and enclosed to form the wire passing cavity.
Preferably, the drawing and inserting structure is as follows: the two sides of the first sub-shell are respectively provided with grooves or raised strips penetrating through two ends of the first sub-shell, the two sides of the second sub-shell are respectively provided with corresponding raised strips or grooves, and the raised strips can be inserted from one end of the grooves and slide in the grooves, so that the two sides of the first sub-shell and the two sides of the second sub-shell can be in extraction-insertion embedded tight fit connection, and the grooves and the raised strips are provided with mutually matched barb structures.
Preferably, the insulation protection sleeve further comprises a connecting cylinder made of an insulating material and used for connecting two adjacent protection cylinders in series, the connecting cylinder is sleeved at the joint of the two adjacent protection cylinders, two ends of the connecting cylinder are respectively provided with a third connecting structure which can be matched with the first connecting structure so as to be fixedly connected with the protection cylinder, the outer side of the connecting cylinder is provided with a butt joint mark which corresponds to the third connecting structure so as to facilitate the alignment of the third connecting structure and the first connecting structure, the connecting cylinder is of a butt joint structure and comprises two half shells, two sides of one half shell are connected with two sides of the other half shell in an embedded tight fit manner, so that joint surfaces between the two half shells are folded surfaces, joint surfaces between the first sub shell and the second sub shell are staggered with joint surfaces between the two half shells, and a plugboard used for filling a joint gap between the two adjacent protection cylinders is arranged on the inner side of the middle of the connecting cylinder.
Preferably, the first connection structure is a pin hole arranged on the outer wall of the connecting cylinder, the second connection structure and/or the third connection structure are/is an inclined bayonet lock matched with the pin hole, and the inclined bayonet lock inclines towards the insertion direction of the protection cylinder, so that the protection cylinder can be conveniently and directly inserted into the inclined bayonet lock to be matched and locked with the pin hole.
The insulating protective sleeve has the beneficial effects that: (1) the protective cylinder is formed by involution of the two sub-shells, so that the two sub-shells are convenient to assemble and disassemble, the side edges of the two sub-shells are connected in an embedded tight fit manner, so that the connecting joint is very small, the joint surface is a folded surface, the creepage distance from the overhead bare conductor to the outer wall of the protective cylinder is increased, the high-voltage electricity can be effectively prevented from puncturing the protective cylinder through the connecting joint of the protective cylinder, the pipe wall of the protective cylinder adopts a structure with a middle overhead layer, and the insulating property of the protective cylinder is improved through an air layer in the overhead layer; (2) the connecting cylinders are arranged, the number of the protection cylinders can be selected according to the length of the overhead bare conductor to be protected, and then the overhead bare conductor is connected through the connecting cylinders, so that the applicability of the overhead bare conductor protecting device is improved; (3) setting a limiter, and positioning the protective cylinder relative to the overhead bare conductor by using the limiter, so that the protective cylinder cannot slide on the overhead bare conductor at will and is fixed firmly; (4) the floating type wire pressing mechanism is matched with the limiting mechanism, when the limiter is not required to limit relative to the overhead bare conductor, the movable block is moved to the upper part of the inclined slideway, the bolt is inserted to enable the movable block to be positioned on the descending side of the movable block, and the bolt can prevent the movable block from sliding obliquely downwards to touch the overhead bare conductor, so that the installation of the overhead bare conductor is facilitated, the limiter can move freely on the overhead bare conductor, and the position adjustment is facilitated; when the limit device is required to limit relative to the aerial bare conductor, the bolt is pulled down, the floating wire pressing mechanism can automatically move under the action of the spring to press the aerial bare conductor, when the aerial bare conductor moves towards the diameter-reducing end of the conical structure relative to the limit device, the overhead bare conductor can be clamped more and more tightly by utilizing the friction force between the outer surface of the aerial bare conductor and the second wire clamping part and the wire clamping space between the second wire clamping part and the first wire clamping part, when the aerial bare conductor moves towards the diameter-expanding end of the conical structure relative to the limit device, the movable pressing block can be driven by the aerial bare conductor to slide upwards along the inclined sliding direction to loosen the aerial bare conductor, so that the aerial bare conductor can move smoothly, and the unidirectional limit on the aerial bare conductor is realized, and the structure is simple and the operation is convenient; (5) through reasonably setting the positions of the jacks, the bolts are positioned on the uplink side of the movable blocks in the state of pressing the overhead bare conductor and are just clung to the movable blocks, after the floating type wire pressing mechanism presses the overhead bare conductor, the bolts are inserted, and the movable blocks can be blocked from sliding obliquely upwards by the bolts, so that the bidirectional limiting of the overhead bare conductor can be realized; (6) the wire passing cylinder is of a involution structure, one sides of the wire passing cylinders are mutually hinged, and the other sides of the wire passing cylinders are detachably connected, so that the shell can be conveniently sleeved on the overhead bare wire.
Drawings
FIG. 1 is a schematic view of a reference structure of an insulation protection sleeve according to the present invention in use;
FIG. 2 is a schematic view of the construction of the cartridge of FIG. 1;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a schematic view of the stopper of FIG. 1;
FIG. 5 is a schematic view of the internal cross-sectional structure of the stopper of FIG. 1;
FIG. 6 is an exploded view of FIG. 4;
fig. 7 is a schematic view of the structure of the connecting cylinder in fig. 1.
The wire clamping device comprises a limiter 1, an upper shell 11, a lower shell 12, a buckle 13, a bayonet lock 14, a wire passing cavity 2, a first wire clamping part 21, an anti-slip tooth 211, an inclined slideway 22, a floating wire pressing mechanism 3, a movable pressing block 31, a sliding block 311, a second wire clamping part 312, a slot 313, a limiting protrusion 3131, a spring 32, an inserting block 33, a limiting groove 331, a guide strip 332, a limiting mechanism 4, a bolt 41, an inserting hole 42, an overhead bare conductor 5, a protective cylinder 6, a first sub-shell 61, a groove 611, a second sub-shell 62, a convex strip 621, an inner wall 63, an intermediate overhead layer 64, an outer wall 65, a pin hole 66, a barb structure 67, a connecting cylinder 7, a half shell 71, an inserting plate 72, an inclined bayonet lock 73 and a butt joint mark 74.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the description of the specific embodiments is intended for purposes of illustration only and is not intended to limit the scope of the present disclosure.
As shown in fig. 1, an insulating protective sleeve comprises a plurality of insulating protective barrels 6, a connecting barrel 7 for connecting two adjacent protective barrels 6 in series, and limiters 1 for mounting at both ends of the outermost protective barrels 6 to limit all the protective barrels 6.
As shown in fig. 2-3, the protection cylinder 6 includes a first sub-shell 61 and a second sub-shell 62, the first sub-shell 61 and the second sub-shell 62 are arc-shaped hollow plates with a fan-shaped cross section, two sides of the first sub-shell 61 and two sides of the second sub-shell 62 are respectively provided with a drawing and inserting structure capable of being mutually embedded and matched, so that the first sub-shell 61 and the second sub-shell 62 can be matched to form the protection cylinder 6 with two open ends and closed sides, the joint surface of the protection cylinder 6 is a folded surface, an inner cavity of the protection cylinder 6 is used for the overhead bare conductor 5 to pass through, and the cylinder wall of the protection cylinder 6 is a three-layer structure including an inner wall 63, a middle overhead layer 64 and an outer wall 65; the creepage distance and difficulty of the current of the high-voltage overhead bare conductor 5 at the joint can be greatly increased, the high-voltage electricity can be effectively prevented from puncturing the protective cylinder 6 through the connecting joint of the protective cylinder 6, the pipe wall of the protective cylinder 6 adopts a structure with an intermediate overhead layer 64, and the insulating property of the protective cylinder 6 is increased through an air layer in the intermediate overhead layer 64; the two ends of the protective cylinder 6 are provided with pin holes 66. The drawing and inserting structure is as follows: the two sides of the first sub-shell 61 are respectively provided with grooves 611 penetrating through two ends of the first sub-shell, the two sides of the second sub-shell 62 are respectively provided with corresponding raised strips 621, and the raised strips 621 can be inserted from one end of the grooves 611 and slide in the grooves 611, so that the two sides of the first sub-shell 61 and the two sides of the second sub-shell 62 can be connected in a drawing-inserting embedded tight fit mode, and the grooves 611 and the raised strips 621 are provided with mutually matched barb structures 67. The insulating material of the protective cylinder 6 is made of hard material, and the joint between the first sub-shell 61 and the second sub-shell 62 is enlarged due to the fact that the hard material is not easy to deform, so that the processing is facilitated.
As shown in fig. 4-6, the limiter 1 is a floating limiter and comprises a shell, the shell comprises an upper shell 11 and a lower shell 12, one side of the upper shell 11 is hinged with one side of the lower shell 12, the other side of the upper shell 11 is detachably connected with the other side of the lower shell 12 through a buckle 13, and the upper shell 11 and the lower shell 12 are matched and enclosed into a wire passing cavity 2 for an overhead bare conductor 5 to pass through; the bottom of the wire passing cavity 2 is provided with a first wire clamping part 21 for placing the overhead bare wire 5, and the wire passing cavity 2 is also internally provided with a floating wire pressing mechanism 3; the floating wire pressing mechanism 3 comprises a movable pressing block 31, a spring 32 and an inserting block 33, wherein the left side wall and the right side wall of the wire passing cavity 2 are provided with inclined slide ways 22, the inclined slide ways 22 and the first wire clamping part 21 form an acute angle to form a conical structure in a matched mode, the side face of the movable pressing block 31 is provided with a sliding block 311 capable of being embedded into the inclined slide ways 22, so that the movable pressing block 31 and the inclined slide ways 22 are in sliding connection, the bottom of the movable pressing block 31 is provided with a second wire clamping part 312 matched with the first wire clamping part 21 to clamp the overhead bare wire 5, the upper part of the movable pressing block 31 is provided with a vertical slot 313 with an upward opening, the spring 32 is arranged in the slot 313, the inserting block 33 is inserted into the slot 313 and can reciprocate in the upper and lower directions relative to the slot 313, the top of the inserting block 33 abuts against the top of the wire passing cavity 2 and can reciprocate in the front and rear directions relative to the wire passing cavity 2, one end of the spring 32 pushes the inserting block 33 upwards, and the other end pushes the movable pressing block 31 downwards, so that the movable pressing block 31 can be driven to slide downwards along the inclined slide ways 22, the first wire clamping part 21 and the second wire clamping part 312 can be matched with the overhead bare wire clamping part 5, and the wire clamping part 5 can also limit the movable pressing mechanism 4 can be limited by the upper wire pressing mechanism. The limit mechanism 4 comprises a plug 41 and a jack 42 arranged on the shell, and one end of the plug 41 can be inserted into the wire passing cavity 2 through the jack 42 and can block the movable pressing block 31 from sliding. One end of the limiter is provided with a bayonet lock 14 matched with the pin hole 66 so as to be connected with a protective cylinder 6 (a device for sleeving the aerial cable bare conductor to prevent electric shock accidents) which is sleeved on the aerial cable bare conductor 5 and needs to be limited or positioned relative to the aerial bare conductor 5, and the connected protective cylinder 6 is limited or positioned.
When the limiter is not required to limit relative to the overhead bare conductor 5, the movable block 31 is moved to the upper part of the inclined slideway 22, the bolt 41 is inserted to enable the movable block 31 to be positioned at the descending side of the movable block 31, and the bolt 41 can prevent the movable block 31 from sliding obliquely downwards to touch the overhead bare conductor 5, so that the installation of the overhead bare conductor 5 is facilitated, the limiter can freely move on the overhead bare conductor 5, and the position adjustment is facilitated; when the limiter is required to limit the relative aerial bare conductor 5, the bolt 41 is pulled down, the floating wire pressing mechanism 3 can automatically move to press the aerial bare conductor 5 under the action of the spring 32, when the aerial bare conductor 5 moves towards the diameter reducing end of the conical structure relative to the limiter, the aerial bare conductor 5 can smoothly move by utilizing the friction force between the outer surface of the aerial bare conductor 5 and the second wire clamping part 312, the wire clamping space between the second wire clamping part 312 and the first wire clamping part 21 is smaller and smaller, so that the aerial bare conductor 5 is clamped more tightly, when the aerial bare conductor 5 moves towards the diameter expanding end of the conical structure relative to the limiter, the aerial bare conductor 5 can drive the movable pressing block 31 to slide upwards along the inclined sliding direction to loosen the aerial bare conductor 5 by utilizing the friction force between the outer surface of the aerial bare conductor 5 and the second wire clamping part 312, and the aerial bare conductor 5 can smoothly move, so that the unidirectional limiting of the aerial bare conductor 5 is realized, the structure is simple, and the operation is convenient.
As a preferred embodiment, by reasonably setting the position of the insertion hole 42, the bolt 41 is located on the uplink side of the movable block 31 in a state of pressing the overhead bare conductor 5 and just clings to the movable block 31, after the floating wire pressing mechanism 3 presses the overhead bare conductor 5, the bolt 41 is inserted, and the bolt 41 can block the movable block 31 from sliding obliquely upwards, so that bidirectional limiting of the overhead bare conductor 5 can be realized.
The slot 313 is internally provided with a limiting protrusion 3131, the insert block 33 is provided with a vertical limiting groove 331, and the limiting protrusion 3131 moves within the range of the limiting groove 331, so that the sliding range of the brake block 31 relative to the insert block 33 is limited to avoid the sliding of the brake block 31 from the slot 313.
The top of inserted block 33 is equipped with the guide bar 332 of arranging along the fore-and-aft direction, and the top of crossing line chamber 2 is equipped with the guide way of cooperation guide bar 332, and guide bar 332 and guide way cooperation form guide structure, and the stable slip of inserted block 33 of being convenient for makes whole floating line pressing mechanism 3 more smooth and easy.
The insert block 33 is of a hollow structure with an opening at the lower end, the insert block 33 and the slot 313 are matched to form a space for accommodating the spring 32, the spring 32 can be better protected by the design, the structure of the floating wire pressing mechanism 3 is more compact and stable, and the space is more reasonably utilized.
The first wire clamping part 21 and the second wire clamping part 312 are of concave arc structures matched with the surface of the overhead bare conductor 5, and are provided with anti-slip teeth 211, and the anti-slip teeth 211 are non-return teeth inclined towards the diameter expanding end of the conical structure, so that the unidirectional non-return effect of the limiter is further improved.
As shown in fig. 7, the connecting cylinder 7 is of a involution structure, and comprises two half shells 71, wherein two sides of one half shell 71 are in embedded tight fit connection with two sides of the other half shell 71, so that a joint surface between the two half shells 71 is a folded surface, the joint surface between the first sub shell 61 and the second sub shell 62 and the joint surface between the two half shells 71 are staggered, a plugboard 72 for filling a gap at a joint of two adjacent protection cylinders 6 is arranged on the inner side of the middle part of the connecting cylinder 7, inclined clamping pins 73 capable of being matched with the pin holes 66 are respectively arranged on two ends of the connecting cylinder 7 so as to be fixedly connected with the protection cylinders 6, the inclined clamping pins 73 incline towards the insertion direction of the shown protection cylinders 6, and accordingly the protection cylinders 6 are conveniently and directly inserted into the inclined clamping pins 73 to be matched and locked with the pin holes 66, and butt joint marks 74 corresponding to the inclined clamping pins 73 are arranged on the outer side of the connecting cylinder 7 so as to be convenient for aligning the inclined clamping pins 73 with the pin holes 66. The connecting cylinder 7 is arranged, so that the protective cylinder 6 can be processed according to the standard length, when the length of the overhead bare conductor 5 to be protected is longer, a plurality of protective cylinders 6 with standard lengths can be selected, and then the protective cylinders 6 are connected through the connecting cylinder 7, so that the applicability of the invention is improved, the joint surface of the protective cylinder 6 and the joint surface of the connecting cylinder 7 are arranged in a staggered manner, and the reason is the same as the reason that the creepage distance and the creepage difficulty are increased, and the high-voltage electricity is prevented from puncturing the protective cylinder 6 and the connecting cylinder 7 through the connecting joint.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (9)
1. The utility model provides an insulation protection sleeve, its characterized in that includes at least one insulation protection section of thick bamboo and stopper, the protection section of thick bamboo includes first minute shell and second minute shell, and first minute shell and second minute shell are the circular arc cavity board that the cross section was the fan-shaped, and the both sides limit of first minute shell and second minute shell is equipped with respectively and can mutually embedded complex and takes out the structure of inserting to can make first minute shell and second minute shell cooperate and form a both ends opening, side confined protection section of thick bamboo, and the seam face of protection section of thick bamboo is the face of folding, and the inner chamber of protection section of thick bamboo supplies the overhead bare conductor to pass, and the section of thick bamboo wall of protection section of thick bamboo is for including inner wall, middle overhead layer and outer wall three layer construction, and the both ends of protection section of thick bamboo are equipped with first connection structure, the stopper cover is on the bare conductor and can carry out spacing fixed relatively to the overhead bare conductor, and the second connection structure of cooperation first connection structure is equipped with thereby can with protection section of thick bamboo fixed connection to the at least one end of stopper,
the limiter comprises a shell, a wire passing cavity for the overhead bare conductor to pass is formed in the shell, a first wire clamping portion for placing the overhead bare conductor is arranged at the bottom of the wire passing cavity, a floating wire pressing mechanism is further arranged in the wire passing cavity, the floating wire pressing mechanism comprises a movable pressing block, a spring and a plug block, an inclined slide way is arranged on the left side wall and/or the right side wall of the wire passing cavity, the inclined slide way and the first wire clamping portion are in an acute angle and form a conical structure in a matched mode, the side face of the movable pressing block is in sliding connection with the inclined slide way, a second wire clamping portion matched with the first wire clamping portion to clamp the overhead bare conductor is arranged at the bottom of the movable pressing block, an opening upward vertical slot is formed in the upper portion of the movable pressing block, the spring is arranged in the slot, the plug block is inserted into the slot and can slide back and forth in the vertical direction relative to the slot, the top of the wire passing cavity is abutted, one end of the plug block pushes the plug block upwards, the other end of the plug block pushes the movable pressing block downwards in an inclined mode along the inclined slide way, and accordingly the movable pressing block can be driven to slide downwards along the inclined slide way so that the first wire clamping portion and the second wire clamping portion can be matched with the second wire clamping portion to be limited by the movable pressing block.
2. The insulation protection sleeve according to claim 1, wherein the limiting mechanism comprises a plug pin and a jack arranged on the shell, one end of the plug pin can be inserted into the wire passing cavity through the jack and can block the movable block from sliding, so that the movable block positioned at the upper part of the inclined slideway cannot slide obliquely downwards to press the overhead bare conductor.
3. The insulation protection sleeve according to claim 2, wherein the latch is further capable of preventing a movable block located at a lower portion of the inclined slide from being slid obliquely upward and releasing the bare overhead conductor.
4. The insulation protection sleeve according to claim 1, wherein a limiting protrusion is arranged in the slot, a vertical limiting groove is formed in the insert block, and the limiting protrusion moves within the range of the limiting groove, so that the sliding range of the movable block relative to the insert block is limited, and the movable block is prevented from sliding out of the slot.
5. The insulating protective sleeve according to claim 1, wherein the insert block is a hollow structure with an opening at a lower end, and the insert block and the slot cooperate to form a space for accommodating the spring.
6. The insulating protective sleeve according to claim 1, wherein the housing comprises an upper housing and a lower housing, one side of the upper housing is hinged with one side of the lower housing, the other side of the upper housing is detachably connected through a buckle, and the upper housing and the lower housing are matched and enclosed into the wire passing cavity.
7. The insulating protective sleeve according to claim 1, wherein the extraction structure is: the two sides of the first sub-shell are respectively provided with grooves or raised strips penetrating through two ends of the first sub-shell, the two sides of the second sub-shell are respectively provided with corresponding raised strips or grooves, and the raised strips can be inserted from one end of the grooves and slide in the grooves, so that the two sides of the first sub-shell and the two sides of the second sub-shell can be in extraction-insertion embedded tight fit connection, and the grooves and the raised strips are provided with mutually matched barb structures.
8. The insulation protection sleeve according to any one of claims 1 to 6, further comprising a connecting cylinder made of an insulating material and used for connecting two adjacent protection cylinders in series, wherein the connecting cylinder is sleeved at the joint of the two adjacent protection cylinders, the two ends of the connecting cylinder are respectively provided with a third connecting structure capable of being matched with the first connecting structure so as to be fixedly connected with the protection cylinder, the outer side of the connecting cylinder is provided with a butt joint mark corresponding to the third connecting structure so as to facilitate the alignment of the third connecting structure and the first connecting structure, the connecting cylinder is of an opposite-type structure and comprises two half shells, two sides of one half shell and two sides of the other half shell are in embedded tight fit connection so that joint surfaces between the two half shells are folded surfaces, the joint surfaces between the first sub shell and the second sub shell are staggered with the joint surfaces between the two half shells, and the inner side of the middle part of the connecting cylinder is provided with a plugboard used for filling a gap at the joint of the two adjacent protection cylinders.
9. The insulating protective sleeve according to claim 8, wherein the first connecting structure is a pin hole arranged on the outer wall of the connecting cylinder, the second connecting structure and/or the third connecting structure is an inclined bayonet lock matched with the pin hole, and the inclined bayonet lock inclines towards the insertion direction of the protective cylinder so as to facilitate the direct insertion of the protective cylinder into the inclined bayonet lock to be matched and locked with the pin hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811211876.5A CN109256739B (en) | 2018-10-17 | 2018-10-17 | Insulation protection sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811211876.5A CN109256739B (en) | 2018-10-17 | 2018-10-17 | Insulation protection sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN109256739A CN109256739A (en) | 2019-01-22 |
| CN109256739B true CN109256739B (en) | 2023-08-01 |
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| CN201811211876.5A Active CN109256739B (en) | 2018-10-17 | 2018-10-17 | Insulation protection sleeve |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110013929A (en) * | 2019-03-27 | 2019-07-16 | 南方电网科学研究院有限责任公司 | A kind of overhead bare conductor insulating processing unit |
| CN110416937A (en) * | 2019-07-08 | 2019-11-05 | 江苏利宏原电力科技有限公司 | A kind of conducting wire protection tube and mating connector |
| CN110247334B (en) * | 2019-07-19 | 2024-05-24 | 广州番禺电缆集团有限公司 | Misplaced installation protective sleeve assembly |
| CN110535062A (en) * | 2019-07-19 | 2019-12-03 | 广州番禺电缆集团有限公司 | Arranged in dislocation protective sleeve sub-assembly |
| CN110265920A (en) * | 2019-07-19 | 2019-09-20 | 广州番禺电缆集团有限公司 | A kind of arranged in dislocation protective sleeve connect cover |
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| CN107611897A (en) * | 2017-11-03 | 2018-01-19 | 广州番禺电缆集团有限公司 | A kind of overhead bare conductor voltage reducing device |
| CN209516561U (en) * | 2018-10-17 | 2019-10-18 | 广州番禺电缆集团有限公司 | Insulating protective sleeve |
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| DE1747843U (en) * | 1957-05-03 | 1957-07-04 | Friedrich Kurz Metallwarenfabr | CABLE SUPPORT FOR LIGHTNING ARRESTER. |
| AU4617201A (en) * | 2000-11-09 | 2001-10-25 | Majorank Int Ltd | Lead-in clamp |
| CN201435588Y (en) * | 2009-07-10 | 2010-03-31 | 沈时 | Roadway cable hanger rail connecting device |
| CN105071283A (en) * | 2015-08-28 | 2015-11-18 | 唐花女 | Electric power supply cable wiring positioning apparatus |
| CN206775081U (en) * | 2017-05-30 | 2017-12-19 | 长乐市丽智产品设计有限公司 | A kind of aerial cable deicer |
| CN107611897A (en) * | 2017-11-03 | 2018-01-19 | 广州番禺电缆集团有限公司 | A kind of overhead bare conductor voltage reducing device |
| CN209516561U (en) * | 2018-10-17 | 2019-10-18 | 广州番禺电缆集团有限公司 | Insulating protective sleeve |
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| Publication number | Publication date |
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| CN109256739A (en) | 2019-01-22 |
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