CN113205977A - Circuit breaker wiring structure - Google Patents
Circuit breaker wiring structure Download PDFInfo
- Publication number
- CN113205977A CN113205977A CN202110492128.4A CN202110492128A CN113205977A CN 113205977 A CN113205977 A CN 113205977A CN 202110492128 A CN202110492128 A CN 202110492128A CN 113205977 A CN113205977 A CN 113205977A
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- circuit breaker
- fastening block
- wiring
- locking knob
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- 230000005540 biological transmission Effects 0.000 claims description 41
- 238000012546 transfer Methods 0.000 claims description 22
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 229920006351 engineering plastic Polymers 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 14
- 238000013461 design Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 210000004027 cell Anatomy 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
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- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses a wiring structure of a circuit breaker, which belongs to the field of circuit breakers and comprises a wiring seat arranged at the upper end and the lower end of a shell of the circuit breaker, wherein a fastening block is arranged in the wiring seat, sliding grooves are symmetrically arranged on the inner wall of the wiring seat, sliding rails matched with the sliding grooves are arranged on the outer wall of the fastening block, an internal thread sleeve is arranged at the top of the fastening block, a locking sleeve is arranged in the internal thread sleeve through threaded connection, a locking knob is arranged in the locking sleeve, four limiting balls are equally and angularly arranged on the outer wall of the locking knob, a limiting groove matched with the limiting balls is arranged on the inner wall of the locking sleeve, a rotating block is fixed at the bottom end of the locking knob, and a rotating seat matched with the rotating block is arranged on the rotating block in a rotating connection mode.
Description
Technical Field
The invention relates to the field of circuit breakers, in particular to a circuit breaker wiring structure.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, the circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, automatically cutting off a circuit when serious overload or short circuit, undervoltage and other faults occur, and the circuit breaker has the function equivalent to the combination of a fuse type switch, an over-and-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current. At present, it has been widely used.
The existing circuit breaker still needs a special operating tool in the installation process, the workload is large, the operation is inconvenient, particularly, when the plastic shell circuit breaker of a complete set of switch cabinet is installed, the installation amount of the circuit breaker is large, a large amount of time is wasted on product wiring, and if a product is damaged in use, when a new product needs to be replaced, the dismounting and re-wiring process is complex, the workload is larger, time and labor are wasted, the use is inconvenient, and therefore the circuit breaker wiring structure is provided for solving the problems.
Disclosure of Invention
1. Technical problem to be solved
In view of the problems in the prior art, it is an object of the present invention to provide a wiring structure of a circuit breaker, through the mutual matching of the wire holder with the first transmission rod, the second transmission rod and the locking knob and the fastening block, when in use, the locking knob is rotated to drive the locking sleeve to rotate under the action of the limiting groove, so as to drive the whole locking knob to move downwards, the locking knob drives the included angle between the first transmission rod and the second transmission rod to increase in the process of moving downwards, the purpose that the fastening block is close to the wire holder to fasten the wire is achieved, when the wire needs to be disassembled, the locking knob only needs to be rotated reversely to enable the limiting ball to fall off from the limiting groove, compared with the traditional wiring mode of bolt locking, the invention has the advantages of more labor-saving and convenient locking, quick disassembly, market prospect and suitability for popularization.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A wiring structure of a circuit breaker comprises wire holders arranged at the upper end and the lower end of a shell of the circuit breaker, wherein fastening blocks are arranged in the wire holders, the inner wall of the wire holder is symmetrically provided with sliding chutes, the outer wall of the fastening block is provided with sliding rails matched with the sliding chutes, the top of the fastening block is provided with an internal thread sleeve, a locking sleeve is arranged in the internal thread sleeve through threaded connection, a locking knob is arranged in the locking sleeve, four limiting balls are equally arranged on the outer wall of the locking knob at equal angles, the inner wall of the locking sleeve is provided with a limit groove matched with the limit ball, the bottom end of the locking knob is fixed with a rotating block, the rotating block is rotatably connected with a rotating seat matched with the rotating block, the bottom of the rotating seat is rotatably connected with a first transmission rod and a second transmission rod, the bottom and the connection terminal inner wall of first transfer line rotate to be connected, the bottom and the bottom of fastening block of second transfer line rotate to be connected. The wire holder with the first transmission rod, the second transmission rod and the locking knob is matched with the fastening block, when the wire holder is used, the locking sleeve is driven to rotate under the action of the limiting groove through rotating the locking knob, the whole locking knob is driven to move downwards, the included angle between the first transmission rod and the second transmission rod is increased when the locking knob moves downwards, the purpose that the fastening block is close to the wire holder to fasten the wire is achieved, when the wire is required to be disassembled, the locking knob only needs to be rotated reversely, the limiting ball is enabled to fall off from the limiting groove, and the locking state of the fastening block and the wire holder can be rapidly released.
Furthermore, a spring plate is fixedly arranged at the bottom of the wire holder, a buckle is arranged at the top of the spring plate, a buckle groove matched with the buckle is formed in one side of the bottom of the fastening block, a tensioning spring is fixedly arranged at the top of the spring plate, and one end, far away from the spring plate, of the tensioning spring is fixedly connected with the second transmission rod. Through the arrangement of the spring plate, when an electric wire is not installed, the buckle is buckled with the buckle groove, the relative clearance of the wire holder and the fastening block is kept, the plugging installation of the electric wire is facilitated, when the electric wire is installed, the battery cell end of the electric wire is inserted into the wire holder and between the fastening blocks, the end part of the electric wire is enabled to be abutted against the spring plate, the spring plate is pressed to deform, the buckle is disengaged from the buckle groove, at the moment, under the tensile force action of the tensioning spring, the included angle between the first transmission rod and the second transmission rod is increased, the fastening block is close to the wire holder under the pressure action of the second transmission rod, so that the battery cell of the electric wire is pressed, at the moment, the screwing operation of the locking knob is carried out, the single-hand wiring can be realized, the quick installation can be realized only by one-hand insertion, compared with the traditional wiring mode that one-hand is used for pressing the electric wire and one-hand screwing bolt, the electric wire is more efficient and convenient, and meanwhile, the safety is also improved.
Furthermore, one side of the wire holder opposite to the fastening block is of an arc-shaped structure, a first wiring board is fixed on the inner side of the arc of the wire holder, a second wiring board is fixed on the outer side of the arc of the fastening block, and anti-skidding ratchet structures are arranged on one side of the second wiring board opposite to the first wiring board. Through the mutual cooperation between the second wiring board and the first wiring board of the anti-skidding ratchet structure, when the fastening block is close to the wiring seat under the pressure action of the second transmission rod, the electric wire can be effectively prevented from falling off under the elastic action of the tensioning spring, and the anti-skidding requirements of different working conditions (the electric wire is installed from the bottom) are met.
Further, the arc outside top of fastening block is equipped with the inner groovy, inner groovy and the outer profile phase-match of wire insulation skin, be equipped with the dustproof cushion of a plurality of seconds in the inner groovy, it is a plurality of the dustproof cushion top-down equidistance of second is arranged, the arc inboard of connection terminal be equipped with the dustproof cushion assorted of the dustproof cushion of second, first dustproof cushion is crisscross the arranging with the dustproof cushion of second relatively. Through the structural design of the first dustproof rubber mat and the second dustproof rubber mat which are arranged in a staggered mode, when the fastening block is close to the wire holder, the first dustproof rubber mat and the second dustproof rubber mat which are arranged in a staggered mode are butted, the wire insulation skin is effectively coated, the wire core part of the wire is in a closed state, the oxidation rate of the wire core of the wire can be effectively reduced compared with a traditional exposed wiring mode, and meanwhile the use safety is further improved.
Furthermore, the wire holder, the fastening block, the locking knob, the first transmission rod and the second transmission rod are all of insulating rigid plastic structures, and the insulating rigid plastic structures are made of ABS engineering plastics. By selecting the ABS engineering plastic, the invention avoids electric leakage when in use, and effectively prolongs the service life and the safety performance.
Furthermore, the first wiring board extends to the outer side of the wiring seat and is fixed with a wiring terminal, and the wiring terminal is connected with an electric element wire in the breaker shell.
Further, the tension spring has an elastic force for driving the buckle on the spring plate to be close to the buckle groove. Through the elasticity design of tensioning spring, make reverse rotation locking knob, make spacing ball drop from the spacing groove, when removing the locking state of fastening block and connection terminal, the accessible is carried and is carried locking knob, and the contained angle that drives first transfer line and second transfer line diminishes, and the fastening block resets this moment, and under tensioning spring's pulling force effect, the buckle closes with the buckle groove, makes fastening block and connection terminal can keep effectual wiring clearance, the demand of the next time wiring installation of being convenient for.
Furthermore, the handheld part of locking knob is equipped with anti-skidding line, the top of locking knob is equipped with the cross recess. Through the design of cross recess and anti-skidding line, make the manual screwing of locking knob accessible or the cooperation instrument screws, promoted the convenience of installation.
Furthermore, the outer wall of the locking sleeve is provided with an external thread matched with the internal thread sleeve, a limiting ring is fixed at the bottom of the internal thread sleeve, and the inner diameter of the limiting ring is smaller than the outer diameter of the internal thread sleeve. Through the setting of spacing ring, can prevent effectively that the lock sleeve from precessing excessively and coming off, also prevent simultaneously that the locking knob from precessing excessively, make first transfer line, second transfer line receive too big pressure and warp, promoted life.
Furthermore, the limiting groove is of an L-shaped structure, the vertical groove of the limiting groove is of a linear groove structure, the horizontal groove of the limiting groove is of an arc-shaped groove structure, the sections of the linear groove and the arc-shaped groove are matched with the outer contour of the limiting ball, and the extending direction of the arc-shaped groove far away from the linear groove is the same as the screwing direction of the locking sleeve. Through the structural design that the arc wall extending direction is the same with the precession direction of lock sleeve, make the locking knob when precession, the cell wall that accessible spacing ball pressed the arc wall drives the lock sleeve precession, and the arc wall also can prevent to lock the knob and shift up simultaneously, and when needs reset, the locking knob of reverse rotation makes spacing ball to closing the tangent line groove, carries and draws or under the spring action of tensioning spring, and the locking knob can follow the whole shift up of tangent line groove.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
1 this scheme is through having first transfer line, the connection terminal of second transfer line and locking knob, mutually support between the fastening block, when using, through rotatory locking knob, it is rotatory to drive the lock sleeve under the effect of spacing groove, and then drive the whole of locking knob and move down, the locking knob moves down the contained angle increase of in-process drive first transfer line and second transfer line, reach the fastening block and be close to the purpose of connection terminal fastening electric wire, when needing to dismantle the electric wire, only need reverse rotation locking knob, make spacing ball drop from the spacing groove, can relieve the locking state of fastening block and connection terminal fast, the invention compares with traditional bolt locking's mode of connection, it is more laborsaving convenient to lock, and can dismantle fast, market prospect has, and is suitable for popularization.
2 through the setting of the spring plate, when the electric wire is not installed, the buckle is buckled with the buckle groove, the relative clearance of the wire holder and the fastening block is kept, the plugging installation of the electric wire is convenient, when the electric wire is installed, the electric core end of the electric wire is inserted into the wire holder and the fastening block, the end part of the electric wire is enabled to be abutted against the spring plate, the spring plate is deformed under pressure, the buckle is disengaged from the buckle groove, at the moment, under the tensile force action of the tensioning spring, the included angle between the first transmission rod and the second transmission rod is increased, the fastening block is close to the wire holder under the pressure action of the second transmission rod, so that the electric core of the electric wire is pressed, at the moment, the screwing operation of the locking knob is carried out, the single-hand wiring can be realized, the quick installation can be realized only by one-hand insertion, compared with the traditional wiring mode that one-hand is used for pressing one-hand to screw the bolt, the electric wire is more efficient and convenient, and meanwhile, the safety is also improved.
3 through the mutual cooperation between the second wiring board of anti-skidding ratchet structure, first wiring board, when making the fastening block be close to the connection terminal under the pressure effect of second transfer line, under the spring action of tensioning spring, can prevent effectively that the electric wire from droing, satisfy the anti-skidding demand of different operating modes (from bottom installation electric wire).
4 the structural design of the first dustproof cushion of crisscross arranging, the dustproof cushion of second makes the fastening block be close to the connection terminal, and crisscross first dustproof cushion, the dustproof cushion of second form the butt joint, and effective cladding wire insulating skin makes the sinle silk part of electric wire be in the encapsulated situation, compares in traditional naked mode of connection, can effectively reduce the oxidation rate of the sinle silk of electric wire, also further promotes the security of using simultaneously.
5, by selecting ABS engineering plastics, the invention avoids electric leakage when in use, and effectively prolongs the service life and improves the safety performance.
6 through the elasticity design of tensioning spring, make reverse rotation locking knob, make spacing ball drop from the spacing groove, when removing the locking state of fastening block and connection terminal, the accessible is carried and is carried locking knob, and the contained angle that drives first transfer line and second transfer line diminishes, and the fastening block resets this moment, and under tensioning spring's pulling force effect, the buckle closes with the buckle groove, makes fastening block and connection terminal can keep effectual wiring clearance, the demand of the next time wiring installation of being convenient for.
7 through the design of cross recess and anti-skidding line, make locking knob accessible manual screw or cooperate the instrument to screw, promoted the convenience of installation.
8 through the setting of spacing ring, can prevent effectively that the lock sleeve from precessing excessively and coming off, also prevent simultaneously that the locking knob from precessing excessively, make first transfer line, second transfer line receive too big pressure and warp, promoted life.
9 through the structural design that the arc wall extending direction is the same with the precession direction of lock sleeve, make the locking knob when precession, the cell wall that accessible spacing ball compels the arc wall drives the lock sleeve precession, and the arc wall also can prevent to shift up the locking knob simultaneously, and when needs reset, the locking knob of counter rotation makes spacing ball to closing the tangent line groove, carries and draws or under the spring action of tensioning spring, and the locking knob can follow the whole shift up of tangent line groove.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic bottom view of the present invention;
FIG. 3 is a schematic view of a wire holder according to the present invention;
FIG. 4 is a schematic cross-sectional view of the wire holder proposed in the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 4;
fig. 6 is an exploded view of the wire holder proposed in the present invention;
fig. 7 is a schematic structural view of a locking knob proposed in the present invention;
fig. 8 is a schematic structural view of a locking sleeve proposed in the present invention;
fig. 9 is a schematic diagram showing a comparison of the opening and closing of the proposed wire holder according to the present invention.
The reference numbers in the figures illustrate:
the circuit breaker comprises a circuit breaker shell 1, a wire holder 2, a sliding groove 21, a first dustproof rubber pad 22, a wiring terminal 23, a first wiring board 24, a fastening block 3, a second dustproof rubber pad 31, a second wiring board 32, a sliding rail 33, a clamping groove 34, an internal thread sleeve 35, a limiting ring 351, a locking knob 4, a rotating block 41, a limiting ball 42, a spring plate 5, a clamping buckle 51, a first transmission rod 6, a second transmission rod 7, a tensioning spring 8, a locking sleeve 9, a limiting groove 91, a rotating holder 10 and an electric wire 11.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-9, a circuit breaker wiring structure comprises a wiring holder 2 disposed at the upper and lower ends of a circuit breaker housing 1, a fastening block 3 is disposed in the wiring holder 2, sliding grooves 21 are symmetrically disposed on the inner wall of the wiring holder 2, a sliding rail 33 matched with the sliding grooves 21 is disposed on the outer wall of the fastening block 3, an internal thread sleeve 35 is disposed on the top of the fastening block 3, a locking sleeve 9 is disposed in the internal thread sleeve 35 through threaded connection, a locking knob 4 is disposed in the locking sleeve 9, four limiting balls 42 are equally angularly disposed on the outer wall of the locking knob 4, a limiting groove 91 matched with the limiting balls 42 is disposed on the inner wall of the locking sleeve 9, a rotating block 41 is fixed at the bottom end of the locking knob 4, a rotating base 10 matched with the rotating block 41 is rotatably connected, a first transmission rod 6 and a second transmission rod 7 are rotatably connected at the bottom of the rotating base 10, the bottom end of the first transmission rod 6 is rotatably connected with the inner wall of the wiring holder 2, the bottom end of the second transmission rod 7 is rotatably connected with the bottom of the fastening block 3. The wire holder 2 with the first transmission rod 6, the second transmission rod 7 and the locking knob 4 and the fastening block 3 are matched with each other, when the wire holder is used, the locking sleeve 9 is driven to rotate under the action of the limiting groove 91 by rotating the locking knob 4, so that the whole locking knob 4 is driven to move downwards, the included angle between the first transmission rod 6 and the second transmission rod 7 is increased by driving the locking knob 4 in the downward moving process, the purpose that the fastening block 3 is close to the wire holder 2 to fasten the electric wire 11 is achieved, when the electric wire 11 needs to be disassembled, the locking knob 4 only needs to be rotated reversely, the limiting ball 42 is made to fall off from the limiting groove 91, and the locking state of the fastening block 3 and the wire holder 2 can be rapidly released.
Referring to fig. 4 and 9, a spring plate 5 is fixedly disposed at the bottom of the wire holder 2, a buckle 51 is disposed at the top of the spring plate 5, a buckle groove 34 matched with the buckle 51 is disposed at one side of the bottom of the fastening block 3, a tension spring 8 is fixedly disposed at the top of the spring plate 5, and one end of the tension spring 8, which is far away from the spring plate 5, is fixedly connected to the second transmission rod 7.
Referring to fig. 4, the opposite side of the wire holder 2 and the fastening block 3 is an arc-shaped structure, a first wiring board 24 is fixed on the arc-shaped inner side of the wire holder 2, a second wiring board 32 is fixed on the arc-shaped outer side of the fastening block 3, and the opposite side of the second wiring board 32 and the first wiring board 24 is provided with an anti-slip ratchet structure. Through the mutual cooperation between the second wiring board 32 and the first wiring board 24 of the anti-skidding ratchet structure, when the fastening block 3 is close to the wiring seat 2 under the pressure action of the second transmission rod 7, the electric wire 11 can be effectively prevented from falling off under the elastic force action of the tensioning spring 8, and the anti-skidding requirements of different working conditions (the electric wire is installed from the bottom) are met.
Referring to fig. 4 and 6, an inner groove is formed in the top of the arc-shaped outer side of the fastening block 3, the inner groove matches with the outer contour of the insulation sheath of the electric wire 11, a plurality of second dustproof rubber pads 31 are arranged in the inner groove, the plurality of second dustproof rubber pads 31 are arranged from top to bottom at equal intervals, a first dustproof rubber pad 22 matching with the second dustproof rubber pad 31 is arranged on the arc-shaped inner side of the wire holder 2, and the first dustproof rubber pad 22 and the second dustproof rubber pads 31 are arranged in a relatively staggered manner. Through the structural design of the first dustproof rubber mat 22 and the second dustproof rubber mat 31 which are arranged in a staggered mode, when the fastening block 3 is close to the wire holder 2, the first dustproof rubber mat 22 and the second dustproof rubber mat 31 which are arranged in a staggered mode form a butt joint, the wire 11 is effectively coated with an insulating coating, the wire core part of the wire 11 is in a closed state, the oxidation rate of the wire core of the wire 11 can be effectively reduced compared with a traditional exposed wiring mode, and meanwhile, the use safety is further improved.
The wire holder 2, the fastening block 3, the locking knob 4, the first transmission rod 6 and the second transmission rod 7 are all of insulating rigid plastic structures, and the insulating rigid plastic structures are made of ABS engineering plastics. By selecting the ABS engineering plastic, the invention avoids electric leakage when in use, and effectively prolongs the service life and the safety performance.
Referring to fig. 4, the first terminal plate 24 extends to the outside of the terminal holder 2 and is fixed with a terminal 23, and the terminal 23 is connected to an electric wire of an electric component in the circuit breaker case 1.
Referring to fig. 4, the tension spring 8 has an elastic force for urging the latch 51 of the spring plate 5 to close the latch groove 34. Through the elasticity design of tensioning spring 8, make reverse rotation locking knob 4, make spacing ball 42 drop from spacing groove 91, when relieving the locking state of fastening block 3 and connection terminal 2, the accessible is carried and is pulled locking knob 4, the contained angle that drives first transfer line 6 and second transfer line 7 diminishes, fastening block 3 resets this moment, under tensioning spring 8's pulling force effect, buckle 51 and buckle groove 34 are involutory, make fastening block 3 and connection terminal 2 can keep effectual wiring clearance, the demand of the installation of being convenient for next time of working a telephone switchboard.
Referring to fig. 7, the hand-held portion of the locking knob 4 is provided with anti-slip lines, and the top of the locking knob 4 is provided with a cross-shaped groove. Through the design of cross recess and anti-skidding line, make locking knob 4 accessible manual screw or cooperate the instrument to screw, promoted the convenience of installation.
Referring to fig. 5, the outer wall of the locking sleeve 9 is provided with an external thread matching the internal thread sleeve 35, a limiting ring 351 is fixed at the bottom of the internal thread sleeve 35, and the inner diameter of the limiting ring 351 is smaller than the outer diameter of the internal thread sleeve 35. Through spacing ring 351's setting, can prevent effectively that the lock sleeve 9 from precessing excessively and coming off, also prevent simultaneously that locking knob 4 from precessing excessively, make first transfer line 6, second transfer line 7 receive too big pressure and warp, promoted life.
Referring to fig. 8, the limiting groove 91 is an L-shaped structure, the vertical groove of the limiting groove 91 is a linear groove structure, the horizontal groove of the limiting groove 91 is an arc-shaped groove structure, the cross sections of the linear groove and the arc-shaped groove are both matched with the outer contour of the limiting ball 42, and the extending direction of the arc-shaped groove away from the linear groove is the same as the screwing direction of the locking sleeve 9. Through the structural design that the extension direction of the arc-shaped groove is the same as the screwing direction of the locking sleeve 9, when the locking knob 4 is screwed in, the groove wall of the arc-shaped groove is pressed by the limiting ball 42 to drive the locking sleeve 9 to screw in, meanwhile, the arc-shaped groove can also prevent the locking knob 4 from moving upwards, when the locking knob 4 needs to be reset, the locking knob 4 is rotated reversely to enable the limiting ball 42 to be closed to the linear groove, and the locking knob 4 can move upwards integrally along the linear groove under the elastic action of the tensioning spring 8.
According to the scheme, through the arrangement of the spring plate 5, when the electric wire 11 is not installed, the buckle 51 is buckled with the buckle groove 34, the relative clearance between the wire holder 2 and the fastening block 3 is kept, the insertion installation of the electric wire 11 is convenient, when the electric wire is installed, the battery cell end of the electric wire 11 is inserted between the wire holder 2 and the fastening block 3, the end part of the electric wire 11 is abutted against the spring plate 5, the spring plate 5 is pressed to deform, the buckle 51 is separated from the buckle groove 34, at the moment, under the tensile force of the tensioning spring 8, the included angle between the first transmission rod 6 and the second transmission rod 7 is increased, the fastening block 3 is close to the wire holder 2 under the pressure of the second transmission rod 7, so that the battery cell of the electric wire 11 is pressed, at the moment, the screwing operation of the locking knob 4 is carried out, the single-hand wiring can be realized, the quick installation can be realized only by one-time of one-twisting insertion, compared with the traditional wiring mode of pressing the electric wire and one-hand to screw the bolt, the electric wire is more efficient and convenient, meanwhile, the safety is also improved.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides a circuit breaker wiring structure, is including setting up wire holder (2) at both ends about circuit breaker casing (1), its characterized in that: the wire holder is characterized in that a fastening block (3) is arranged in the wire holder (2), sliding grooves (21) are symmetrically formed in the inner wall of the wire holder (2), sliding rails (33) matched with the sliding grooves (21) are arranged on the outer wall of the fastening block (3), an internal thread sleeve (35) is arranged at the top of the fastening block (3), a locking sleeve (9) is arranged in the internal thread sleeve (35) through threaded connection, a locking knob (4) is arranged in the locking sleeve (9), four limit balls (42) are equally angularly arranged on the outer wall of the locking knob (4), a limit groove (91) matched with the limit balls (42) is formed in the inner wall of the locking sleeve (9), a rotating block (41) is fixed at the bottom end of the locking knob (4), a rotating seat (10) matched with the rotating block is arranged on the rotating block (41) in a rotating mode, a first transmission rod (6) and a second transmission rod (7) are arranged on the bottom of the rotating seat (10) in a rotating mode, the bottom of first transfer line (6) rotates with connection terminal (2) inner wall to be connected, the bottom of second transfer line (7) rotates with the bottom of fastening block (3) to be connected.
2. A circuit breaker wiring structure according to claim 1, characterized in that: the fixed spring board (5) that is equipped with in bottom of wire holder (2), the top of spring board (5) is equipped with buckle (51), bottom one side of fastening block (3) be equipped with buckle (51) assorted buckle groove (34), spring board (5) top is fixed with tensioning spring (8), the one end and second transfer line (7) fixed connection of spring board (5) are kept away from in tensioning spring (8).
3. A circuit breaker wiring structure according to claim 1, characterized in that: one side that wire holder (2) and fastening block (3) are relative is the arc structure, the arc inboard of wire holder (2) is fixed with first wiring board (24), the arc outside of fastening block (3) is fixed with second wiring board (32), second wiring board (32) all are equipped with anti-skidding ratchet structure with one side that first wiring board (24) is relative.
4. A circuit breaker wiring structure according to claim 3, wherein: the arc outside top of fastening block (3) is equipped with the inner groovy, the inner groovy matches with the outer profile of electric wire (11) insulating skin, be equipped with the dustproof cushion of a plurality of seconds (31), it is a plurality of the dustproof cushion of second (31) top-down equidistance is arranged, the arc inboard of connection terminal (2) is equipped with the dustproof cushion of second (31) assorted (22), first dustproof cushion (22) and the dustproof cushion of second (31) are crisscross relatively and arrange.
5. A circuit breaker wiring structure according to claim 1, characterized in that: the wiring holder (2), the fastening block (3), the locking knob (4), the first transmission rod (6) and the second transmission rod (7) are all insulating rigid plastic structures, and the insulating rigid plastic structures are made of ABS engineering plastics.
6. A circuit breaker wiring structure according to claim 3, wherein: the first wiring board (24) extends to the outer side of the wiring seat (2) and is fixed with a wiring terminal (23), and the wiring terminal (23) is connected with an electric element wire in the breaker shell (1).
7. A circuit breaker wiring structure according to claim 2, wherein: the tension spring (8) has an elastic force urging a catch (51) on the spring plate (5) to approach the catch groove (34).
8. A circuit breaker wiring structure according to claim 1, characterized in that: the anti-skidding lines are arranged at the handheld part of the locking knob (4), and the cross groove is formed in the top of the locking knob (4).
9. A circuit breaker wiring structure according to claim 1, characterized in that: the outer wall of lock sleeve (9) is equipped with the external screw thread with internal thread cover (35) assorted, the bottom of internal thread cover (35) is fixed with spacing ring (351), the internal diameter of spacing ring (351) is less than the external diameter of internal thread cover (35).
10. A circuit breaker wiring structure according to claim 1, characterized in that: the limiting groove (91) is of an L-shaped structure, the vertical groove of the limiting groove (91) is of a linear groove structure, the horizontal groove of the limiting groove (91) is of an arc groove structure, the sections of the linear groove and the arc groove are matched with the outline of the limiting ball (42), and the extending direction of the arc groove far away from the linear groove is the same as the screwing direction of the locking sleeve (9).
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| CN202110492128.4A CN113205977B (en) | 2021-05-06 | 2021-05-06 | Circuit breaker wiring structure |
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| CN202110492128.4A CN113205977B (en) | 2021-05-06 | 2021-05-06 | Circuit breaker wiring structure |
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| CN113205977B CN113205977B (en) | 2022-10-25 |
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| Publication number | Publication date |
|---|---|
| CN113205977B (en) | 2022-10-25 |
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Denomination of invention: A Circuit Breaker Wiring Structure Granted publication date: 20221025 Pledgee: Huaibei Branch of China Postal Savings Bank Co.,Ltd. Pledgor: ANHUI JINHUAN ELECTRIC EQUIPMENT CO.,LTD. Registration number: Y2024980003890 |