CN112164629A - Grounding circuit breaker - Google Patents
Grounding circuit breaker Download PDFInfo
- Publication number
- CN112164629A CN112164629A CN202011025476.2A CN202011025476A CN112164629A CN 112164629 A CN112164629 A CN 112164629A CN 202011025476 A CN202011025476 A CN 202011025476A CN 112164629 A CN112164629 A CN 112164629A
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- Prior art keywords
- piece
- friction
- elastic
- handle
- circuit breaker
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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
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
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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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Abstract
The invention relates to the field of circuit breakers, in particular to a grounding circuit breaker, which comprises a front cover, a base and a rear cover, wherein the front cover comprises an upper shell and a front shell, and a first bolt and a wire installing device are arranged on the upper shell; the wire installing device comprises a handle, an elastic connecting piece, a connecting block, a transmission piece, a friction piece and a clamping block, wherein one end of the handle is exposed out of the upper shell, the other end of the handle is connected with one end of the elastic connecting piece, and the other end of the elastic connecting piece is hinged with the connecting block; the transmission piece is connected with the connecting block and the friction piece; be provided with the draw-in groove in the joint piece, still be provided with the line groove in the dress traditional thread binding putting, cross the line groove and be used for making and treat the centre gripping sinle silk and pass through, the friction surface of friction piece sets up towards the sinle silk to thereby it presss from both sides tightly the sinle silk to make the friction piece pass through frictional force drive sinle silk under the promotion of driving medium and move to the draw-in groove of joint piece in. The grounding circuit breaker has the advantages of simple and convenient wire plugging and difficult loosening of the wire core.
Description
Technical Field
The invention relates to the field of circuit breakers, in particular to a grounding circuit breaker.
Background
As is known, the ground circuit breakers used in low-voltage distribution systems are: a circuit breaker for wiring having an overcurrent protection function, and a leakage circuit breaker having an overcurrent protection function and a ground protection function. The circuit breaker is a switching device capable of closing, carrying and opening/closing a current under a normal circuit condition and closing, carrying and opening/closing a current under an abnormal circuit condition within a prescribed time,
the prior art discloses the application numbers as follows: 201520378477.3, comprising a shell, a reset piece, a reset mechanism, a conductive assembly, a leakage signal detection circuit and an electromagnetic tripping mechanism; the reset mechanism comprises a reset bracket and a bracket reset mechanism, and the reset bracket comprises a reset bracket body and a bracket reset spring; the support return mechanism comprises a return rod, a return spring, a compression spring accommodating cavity, a return sliding block and a contact conductive piece; the position A of the reset bracket is in a reset state, the position B of the reset bracket is in a tripping state, and the reset bracket has a tendency of sliding from the position A to the position B under the action of the bracket return mechanism; the contact conductive piece is arranged at the lower end of the reset sliding block and corresponds to the position of a switch contact of a PCB of the ground fault circuit breaker, and the on-off state control of the conductive assembly is realized through the contact and separation of the contact conductive piece and the switch contact. However, when the circuit breaker is assembled and disassembled, the circuit breaker needs to be assisted by tools such as a screwdriver, so that the circuit breaker is inconvenient to use and the working efficiency is affected. The cable core can not be completely sleeved in the prior art, and the wiring difficulty is high, so that the condition that the cable core falls off easily occurs.
In view of the above, there is a need for a new ground circuit breaker that solves or at least alleviates the above technical drawbacks.
Disclosure of Invention
The invention mainly aims to provide a grounding circuit breaker, and aims to solve the technical problems that the conventional grounding circuit breaker is high in wiring difficulty and a wire core is easy to loosen.
To achieve the above object, the present invention provides a ground circuit breaker comprising:
the wire harness fixing device comprises a front cover, a base and a rear cover, wherein the front cover comprises an upper shell and a front shell, a first bolt and a wire installing device are arranged on the upper shell, a switch is arranged on the front shell, a second bolt is arranged on the base, the upper shell and the front shell are integrally formed, and the front cover and the rear cover are buckled;
the wire installing device comprises a handle, an elastic connecting piece, a connecting block, a transmission piece, a friction piece and a clamping block, wherein one end of the handle is exposed out of the upper shell, the other end of the handle is connected with one end of the elastic connecting piece, and the other end of the elastic connecting piece is hinged with the connecting block so as to drive the elastic connecting piece to move through the movement of the handle and drive the connecting block to move;
the transmission part comprises a first transmission rod, a second transmission rod and a third transmission rod, the second transmission rod is respectively hinged with the first transmission rod and the third transmission rod, the first transmission rod is further hinged with the connecting block, and the third transmission rod is further connected with the friction part so as to drive the friction part to move through the transmission part;
a clamping groove is formed in the clamping block, a wire passing groove is further formed in the wire installing device and used for enabling a wire core to be clamped to pass through, and a friction surface of the friction piece is arranged to face the wire core, so that the friction piece is pushed by the transmission piece to drive the wire core to move into the clamping groove of the clamping block through friction force, and the wire core is clamped tightly;
when needs chucking sinle silk, insert the sinle silk in the wire casing, will the handle is down pressed, through elastic connection spare transmits torque to the connecting block, then drives the friction member through the transmission of driving medium and removes, and the sinle silk that friction member removal drive and friction member friction are connected removes the sinle silk chucking to the draw-in groove of joint piece in.
Preferably, the elastic connecting member comprises an elastic rod and a spring sleeved on the outer circumferential surface of the elastic rod, and the elastic rod comprises a first end and a second end. The first end with the handle is articulated, the second end with the connecting block is articulated, the spring includes third end and fourth end, the third end with handle fixed connection, the fourth end with connecting block fixed connection.
Preferably, the two ends of the elastic rod are both provided with mounting lugs, one end of the handle close to the elastic rod is provided with a mounting hole, and the handle is hinged with the elastic rod through a threaded fastener; the connecting block is hinged with the elastic rod through a threaded piece.
Preferably, the friction piece comprises a friction rod, the friction rod is welded with the third transmission rod, the friction rod and the third transmission rod are both horizontally arranged, and one surface of the friction rod, facing the wire core, is arranged to be serrated.
Preferably, the clamping groove is a square groove, the width of the square groove is slightly larger than the diameter of the wire core, and an elastic sheet is further arranged in the clamping groove; when the sinle silk inserts during the square groove, the flexure strip is extruded and takes place deformation and then will the sinle silk chucking is in the square groove.
Preferably, the elastic piece is an arc-shaped elastic piece, and a convex surface of the arc-shaped elastic piece is arranged to face the wire core.
Preferably, the number of the arc-shaped elastic pieces is two, convex surfaces of the two arc-shaped elastic pieces are arranged oppositely, and a certain gap is reserved between the two arc-shaped elastic pieces for the wire core to pass through.
Preferably, a plurality of elastic saw teeth are arranged on the inner wall surface of the clamping groove, so that after the wire core enters the clamping groove under the driving of the friction piece, the wire core is prevented from loosening from the clamping groove through the blocking effect of the elastic saw teeth.
Preferably, the end of the handle exposed to the upper case is further provided with a protruding end.
Preferably, the front cover is further provided with a reset button, and the rear cover is provided with a sliding groove and a clamping groove.
Has the advantages that: in the above technical solution of the present invention, the ground circuit breaker includes: the wire harness fixing device comprises a front cover, a base and a rear cover, wherein the front cover comprises an upper shell and a front shell, a first bolt and a wire installing device are arranged on the upper shell, a switch is arranged on the front shell, a second bolt is arranged on the base, the upper shell and the front shell are integrally formed, and the front cover and the rear cover are buckled; the wire installing device comprises a handle, an elastic connecting piece, a connecting block, a transmission piece, a friction piece and a clamping block, wherein one end of the handle is exposed out of the upper shell, the other end of the handle is connected with one end of the elastic connecting piece, and the other end of the elastic connecting piece is hinged with the connecting block so as to drive the elastic connecting piece to move through the movement of the handle and drive the connecting block to move; the transmission part comprises a first transmission rod, a second transmission rod and a third transmission rod, the second transmission rod is respectively hinged with the first transmission rod and the third transmission rod, the first transmission rod is further hinged with the connecting block, and the third transmission rod is further connected with the friction piece so as to drive the friction piece to move through the transmission part; a clamping groove is formed in the clamping block, a wire passing groove is formed in the wire installing device and used for enabling a wire core to be clamped to pass through, and a friction surface of the friction piece is arranged opposite to the wire core, so that the friction piece drives the wire core to move into the clamping groove of the clamping block through friction force under the pushing of the transmission piece, and the wire core is clamped tightly; when needs chucking sinle silk, insert the sinle silk in the wire casing, press down the handle, transmit torque to the connecting block through elastic connection spare, then drive the friction piece through the transmission of driving medium and remove, the sinle silk that friction piece removal drive and friction piece friction are connected removes the sinle silk chucking to the draw-in groove of joint piece in. In the above-mentioned scheme, insert the sinle silk earlier and cross the wire casing, thereby drive the connecting block motion through handle drive elastic connecting piece, the motion drive driving medium motion through the connecting block to make the friction member motion of being connected with the third transfer line, and then stretch into the draw-in groove of joint piece with sinle silk chucking through the friction drive sinle silk of friction member and sinle silk. The invention has the advantages of simple and convenient wire plugging and difficult loosening of the wire core.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a ground circuit breaker according to an embodiment of the present invention;
fig. 2 is another schematic perspective view of the ground circuit breaker according to the embodiment of the invention;
fig. 3 is a schematic perspective view of a ground circuit breaker according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a wire-loading device according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of the friction member, the clamping block and the wire core according to the embodiment of the present invention (the wire core is not inserted);
FIG. 6 is a schematic structural view of the friction member, the clamping block and the wire core (with the wire core inserted) according to the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a clamping block according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Switch with a |
21 | |
| 22 | |
23 | |
| 24 | |
25 | |
| 3 | |
31 | Handle (CN) |
| 32 | Elastic connecting |
33 | Connecting |
| 34 | |
35 | |
| 36 | Clamping block | 37 | Extension end |
| 321 | |
322 | |
| 351 | |
361 | Clamping |
| 38 | |
4 | |
| 5 | |
6 | Reset button |
| 7 | |
8 | Clamping groove |
| 9 | Wire core |
The implementation, functional features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions 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, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that all the directional indicators (such as the upper and lower … …) in the embodiment of the present invention are only used to explain the relative position relationship, movement, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Moreover, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary to be able to be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Referring to fig. 1 to 7, according to a preferred embodiment of the present invention, there is provided a ground circuit breaker including:
the wire harness fixing device comprises a front cover 24, a base 21 and a rear cover 25, wherein the front cover 24 comprises an upper shell 22 and a front shell 23, the upper shell 22 is provided with a first bolt 4 and a wire installing device 3, the front shell 23 is provided with a switch 1, the base 21 is provided with a second bolt 5, the upper shell 22 and the front shell 23 are integrally formed, and the front cover 24 and the rear cover 25 are buckled;
the wire installing device 3 comprises a handle 31, an elastic connecting piece 32, a connecting block 33, a transmission piece 34, a friction piece 35 and a clamping block 36, wherein one end of the handle 31 is exposed to the upper shell 22, the other end of the handle 31 is connected with one end of the elastic connecting piece 32, and the other end of the elastic connecting piece 32 is hinged with the connecting block 33 so as to drive the elastic connecting piece 32 to move through the movement of the handle 31 and drive the connecting block 33 to move;
the transmission piece 34 comprises a first transmission rod, a second transmission rod and a third transmission rod, the second transmission rod is hinged with the first transmission rod and the third transmission rod respectively, the first transmission rod is further hinged with the connecting block 33, and the third transmission rod is further connected with the friction piece 35 so as to drive the friction piece 35 to move through the transmission piece 34;
a clamping groove 361 is arranged in the clamping block 36, a wire passing groove is also arranged in the wire installing device 3, the wire passing groove is used for enabling the wire core 9 to be clamped to pass through, and the friction surface of the friction piece 35 is arranged to face the wire core 9, so that the friction piece 35 drives the wire core 9 to move into the clamping groove 361 of the clamping block 36 through friction force under the pushing of the transmission piece 34, and the wire core 9 is clamped tightly;
when needs chucking sinle silk 9, insert the sinle silk 9 in the wire casing, press down handle 31, transmit torque to connecting block 33 through elastic connection spare 32, then drive friction member 35 through the transmission of driving medium 34 and remove, friction member 35 removes the sinle silk 9 that drive and friction member 35 friction coupling and removes to the draw-in groove 361 of joint piece 36 in with sinle silk 9 chucking.
In the above embodiment, the wire-installing device 3 includes a handle 31, an elastic connecting member 32, a connecting block 33, a transmission member 34, a friction member 35 and a clamping block 36, one end of the handle 31 is exposed to the upper shell 22, the other end of the handle 31 is connected with one end of the elastic connecting member 32, and the other end of the elastic connecting member 32 is hinged with the connecting block 33, so that the movement of the handle 31 drives the elastic connecting member 32 to move, thereby driving the connecting block 33 to move; the transmission piece 34 comprises a first transmission rod, a second transmission rod and a third transmission rod, the second transmission rod is hinged with the first transmission rod and the third transmission rod respectively, the first transmission rod is further hinged with the connecting block 33, and the third transmission rod is further connected with the friction piece 35 so as to drive the friction piece 35 to move through the transmission piece 34; be provided with draw-in groove 361 in the joint piece 36, still be provided with the wire casing in the dress line device 3, cross the wire casing and be used for making and treat centre gripping sinle silk 9 and pass through, the friction surface of friction piece 35 sets up towards sinle silk 9 to thereby make friction piece 35 pass through frictional force drive sinle silk 9 and move to the draw-in groove 361 of joint piece 36 in under the promotion of driving medium 34 and press from both sides tightly sinle silk 9. When the sinle silk 9 is installed to needs, insert the sinle silk 9 earlier in the wire casing, thereby drive the motion of connecting block 33 through handle 31 drive elastic connecting piece 32, the motion drive transmission member 34 through connecting block 33 moves to make the friction member 35 motion of being connected with the third transfer line, and then stretch into the draw-in groove 361 of joint piece 36 with sinle silk 9 chucking through the friction drive sinle silk 9 of friction member 35 and sinle silk 9. This embodiment has the advantage that the plug wire is simple and convenient and sinle silk 9 is difficult for the pine to take off. After releasing the handle 31, the handle 31 is restored to the original position by the restoring force of the elastic connection member 32.
According to another preferred embodiment of the present invention, the elastic connection member 32 includes an elastic rod 321 and a spring 322 sleeved on an outer circumferential surface of the elastic rod 321, and the elastic rod 321 includes a first end and a second end. First end is articulated with handle 31, and the second end is articulated with connecting block 33, and spring 322 includes third end and fourth end, and third end and handle 31 fixed connection, fourth end and connecting block 33 fixed connection. The elastic rod 321 serves to reinforce the strength of the elastic connection member 32, and the elastic rod 321 may be made of an elastic material, such as rubber. Or may be made of a relatively slender metal such as copper or steel.
Furthermore, both ends of the elastic rod 321 are provided with mounting lugs, one end of the handle 31 close to the elastic rod 321 is provided with a mounting hole, and the handle 31 is hinged with the elastic rod 321 through a threaded fastener; the connecting block 33 is hinged to the elastic rod 321 by a screw. The articulation with the handle 31 and the connecting piece 33 is achieved by the mounting ears.
Further, the friction member 35 includes a friction bar welded to the third transmission bar, and both the friction bar and the third transmission bar are horizontally disposed, and a surface of the friction bar facing the core 9 is disposed as a saw-toothed shape 351. Those skilled in the art will appreciate that the horizontal arrangement allows the wire core 9 to be inserted horizontally into the slot 361, making the clamping easier and more convenient.
Furthermore, the clamping groove 361 is a square groove, the width of the square groove is slightly larger than the diameter of the wire core 9, and an elastic sheet 38 is further arranged in the clamping groove 361; when the sinle silk 9 inserts square groove, the flexure strip 38 is extrudeed and is taken place deformation and then with sinle silk 9 chucking in square groove. After the cable core 9 is inserted, the elastic piece 38 will recover the deformation and then give the extrusion force to the cable core 9, and the cable core 9 is clamped in the clamping groove 361 under the action of the extrusion force.
Further, the elastic piece 38 is a circular arc-shaped elastic piece 38, and a convex surface of the circular arc-shaped elastic piece 38 is disposed facing the wire core 9. The convex surface is arranged facing the core 9 and can have a larger contact area with the core 9 after the resilient tab 38 is pressed. Two tip and sinle silk 9 contacts for the concave surface, can increase area of contact, reduce pressure and then reduce the impaired degree of sinle silk 9.
Further, the number of the circular arc-shaped elastic pieces 38 is two, convex surfaces of the two circular arc-shaped elastic pieces 38 are arranged oppositely, and a certain gap is reserved between the two circular arc-shaped elastic pieces 38 for the wire core 9 to pass through. The gap between the two circular arc elastic deformations is smaller than the diameter or the width of the wire core 9, and when the wire core 9 passes through the gap, the two circular arc elastic pieces 38 are deformed to clamp the wire core 9 between the two circular arc elastic pieces 38.
Further, be provided with a plurality of elasticity sawtooth on the internal wall face of draw-in groove 361 to make sinle silk 9 get into the draw-in groove 361 under the drive of friction piece 35 after, prevent that sinle silk 9 from taking off from draw-in groove 361 through the effect of blockking of a plurality of elasticity sawtooth. The wire core 9 is inserted into the card slot 361 through the elastic saw teeth of the card slot 361 by the driving of the friction member 35. When the wire core 9 is inserted, the wire core 9 is tightly clamped in the clamping groove 361 under the driving of no external force due to the blocking effect of the elastic sawteeth.
Further, an end of the handle 31 exposed to the upper case 22 is also provided with a protruding end 37. The extending section is convenient for manual operation. Furthermore, the front cover 24 is further provided with a reset button 6, the rear cover 25 is provided with a sliding groove 7 and a clamping groove 8, and the sliding groove 7 and the clamping groove 8 facilitate installation of the circuit breaker.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical spirit of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The ground circuit breaker is characterized by comprising a front cover (24), a base (21) and a rear cover (25), wherein the front cover (24) comprises an upper shell (22) and a front shell (23), a first bolt (4) and a wire installing device (3) are arranged on the upper shell (22), a switch (1) is arranged on the front shell (23), a second bolt (5) is arranged on the base (21), the upper shell (22) and the front shell (23) are integrally formed, and the front cover (24) and the rear cover (25) are buckled;
the wire installing device (3) comprises a handle (31), an elastic connecting piece (32), a connecting block (33), a transmission piece (34), a friction piece (35) and a clamping block (36), one end of the handle (31) is exposed to the upper shell (22), the other end of the handle (31) is connected with one end of the elastic connecting piece (32), and the other end of the elastic connecting piece (32) is hinged to the connecting block (33) so as to drive the elastic connecting piece (32) to move through the movement of the handle (31) and further drive the connecting block (33) to move;
the transmission piece (34) comprises a first transmission rod, a second transmission rod and a third transmission rod, the second transmission rod is hinged with the first transmission rod and the third transmission rod respectively, the first transmission rod is further hinged with the connecting block (33), and the third transmission rod is further connected with the friction piece (35) so as to drive the friction piece (35) to move through the transmission piece (34);
a clamping groove (361) is formed in the clamping block (36), a wire passing groove is further formed in the wire installing device (3), the wire passing groove is used for enabling a wire core (9) to be clamped to pass through, and a friction surface of the friction piece (35) is arranged to face the wire core (9), so that the friction piece (35) drives the wire core (9) to move into the clamping groove (361) of the clamping block (36) through friction force under the pushing of the transmission piece (34), and the wire core (9) is clamped tightly;
when needs chucking sinle silk (9), insert line inslot with sinle silk (9), will handle (31) are down pressed, through elastic connecting piece (32) transmit torque to connecting block (33), then drive friction piece (35) through the drive effect of driving medium (34) and remove, and friction piece (35) remove drive and friction piece (35) friction coupling sinle silk (9) and remove sinle silk (9) chucking in draw-in groove (361) to joint piece (36).
2. The ground circuit breaker as claimed in claim 1, wherein said resilient connecting member (32) comprises a resilient rod (321) and a spring (322) fitted around an outer circumferential surface of said resilient rod (321), said resilient rod (321) comprising a first end and a second end; the first end with handle (31) are articulated, the second end with connecting block (33) are articulated, spring (322) include third end and fourth end, the third end with handle (31) fixed connection, the fourth end with connecting block (33) fixed connection.
3. The ground circuit breaker as claimed in claim 1, characterized in that both ends of said elastic rod (321) are provided with mounting ears, one end of said handle (31) close to said elastic rod (321) is provided with a mounting hole, said handle (31) is hinged with said elastic rod (321) by a threaded fastener; the connecting block (33) is hinged with the elastic rod (321) through a screw.
4. The ground circuit breaker according to claim 1, characterized in that said friction member (35) comprises a friction bar welded to said third transmission bar, and both said friction bar and said third transmission bar are horizontally arranged, the face of said friction bar facing said core (9) being arranged as a saw tooth (351).
5. The ground circuit breaker according to claim 1, characterized in that said slot (361) is a square slot, the width of said square slot is slightly larger than the diameter of said wire core (9), said slot (361) is further provided with an elastic sheet (38); when the wire core (9) is inserted into the square groove, the elastic sheet (38) is extruded to deform so as to clamp the wire core (9) in the square groove.
6. The ground circuit breaker according to claim 5, characterized in that said elastic piece (38) is a circular arc shaped elastic piece (38), the convex surface of said circular arc shaped elastic piece (38) being arranged facing said wire core (9).
7. The ground circuit breaker according to claim 6, wherein the number of the circular arc-shaped elastic pieces (38) is two, convex surfaces of the two circular arc-shaped elastic pieces (38) are oppositely arranged, and a gap for the wire core (9) to pass through is reserved between the two circular arc-shaped elastic pieces (38).
8. The ground circuit breaker as claimed in claim 1, wherein a plurality of resilient serrations are provided on an inner wall surface of said card slot (361), so that said wire core (9) is prevented from being released from said card slot (361) by a blocking action of said resilient serrations after said wire core (9) is driven into said card slot (361) by said friction member (35).
9. The ground circuit breaker according to claim 1, characterized in that the end of said handle (31) exposed to said upper case (22) is also provided with a projecting end (37).
10. The ground circuit breaker according to claim 1, characterized in that a reset button (6) is further provided on said front cover (24), and a slide groove (7) and a catch groove (8) are provided on said rear cover (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011025476.2A CN112164629B (en) | 2020-09-25 | 2020-09-25 | Grounding circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011025476.2A CN112164629B (en) | 2020-09-25 | 2020-09-25 | Grounding circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112164629A true CN112164629A (en) | 2021-01-01 |
| CN112164629B CN112164629B (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011025476.2A Active CN112164629B (en) | 2020-09-25 | 2020-09-25 | Grounding circuit breaker |
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| CN112164629B (en) | 2023-05-12 |
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