CN110942961A

CN110942961A - Lever type wiring structure

Info

Publication number: CN110942961A
Application number: CN201911333997.1A
Authority: CN
Inventors: 叶益帆; 叶定友; 黄中甫; 叶杰
Original assignee: ZHEJIANG ZHONGYIHAO TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG ZHONGYIHAO TECHNOLOGY Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-03-31

Abstract

The invention relates to the technical field of circuit breakers, in particular to a lever type wiring structure which comprises a cover body, wherein a bottom plate is arranged at the bottom of the cover body, two wiring holes are formed in the upper part of the outer wall of one end of the cover body, two bolt holes are formed in the lower part of the outer wall of one end of the cover body, external wires are arranged outside the wiring holes, and bolts are arranged outside the bolt holes; the inside top of lid is provided with two binding post, and the inside of lid is located and is provided with the connection frame between binding post and the external connection, and the one end that the external connection is close to binding post is connected with the internal wiring. In the design of the invention, the bolt is screwed to realize the turnover of the rocker lever, so that the inner connecting wire is tightly pressed on the connecting terminal, the convenience in opening and closing the switch is ensured, the limit of the bolt ensures the fixation of the rocker lever, the rocker lever tightly presses and fixes the inner connecting wire, the elastic sheet can ensure the reset of the rocker lever, the outer connecting wire is conveniently drawn out, and the friction damage caused by the outer connecting wire and the top of the rocker lever when the outer connecting wire is drawn out is avoided.

Description

Lever type wiring structure

Technical Field

The invention relates to the technical field of circuit breakers, in particular to a lever type 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 wiring structure of current circuit breaker generally compresses tightly and loosen the wiring one end of outside access through the shell fragment to realize the closure and the disconnection of switch, it is convenient inadequately when carrying out the disconnection and the closure of switch through this kind of mode, need insert the wiring hard, and cause the not hard up of wiring end very easily after the elasticity of shell fragment descends, it is stable inadequately to the fixed of wiring end, influence the closure of switch, in addition, can cause wearing and tearing when carrying out the plug of external connection for a long time, influence the life of wiring structure.

Disclosure of Invention

The present invention is directed to a lever type wiring structure, which solves the above problems in the prior art.

In order to achieve the purpose, the invention provides a lever type wiring structure which comprises a cover body, wherein a bottom plate is arranged at the bottom of the cover body, two wiring holes are formed in the upper part of the outer wall of one end of the cover body, two bolt holes are formed in the lower part of the outer wall of one end of the cover body, external wires are arranged outside the wiring holes, and bolts are arranged outside the bolt holes; two wiring terminals are arranged above the inner part of the cover body, a wiring frame is arranged between the wiring terminals and an external wiring in the cover body, and one end of the external wiring, which is close to the wiring terminals, is connected with an internal wiring; the wiring frame is inside cavity and both sides are provided with open-ended rectangle structure, one side that the wiring frame is close to the bolt hole has closely welded the locating piece, threaded hole has been seted up at the middle part of locating piece, the one end and the screw hole threaded connection of bolt, the one end of internal terminal passes the opening and stretches into the inside of wiring frame, binding post's one end also passes the opening and stretches into the inside of wiring frame, the internal terminal is located binding post's below, the bottom of internal terminal is provided with the rocking arm lever, one side that the bolt was kept away from to the rocking arm lever is provided with reset spring, the bolt can rotate and twist the screw hole inside and promote the rocking arm lever and rotate, the top of rocking arm lever can upwards promote the internal terminal and compress tightly with the binding post.

Preferably, the bottom of the positioning bin is tightly attached to the bottom plate.

Preferably, the external connection wire and the internal connection wire are integrally formed.

Preferably, the rocker arm lever includes the upper arm that is located the top and the underarm that is located the below, be provided with the link between upper arm and the underarm, the both sides of link are connected with upper arm and underarm respectively, the both ends of link are link up and have been seted up the shaft hole, the inside rotation in shaft hole is connected with the fixed axle, the length of fixed axle is greater than the length in shaft hole, the both sides inner wall in location storehouse is close to fixed axle department and has seted up the round hole, the fixed axle is pegged graft with the round hole and is.

Preferably, the connecting end, the upper arm and the lower arm are of an integrally formed structure.

Preferably, the included angle between the upper arm and the lower arm is 120-150 degrees.

Preferably, the reset spring comprises a vertically arranged fixing piece, an elastic piece is vertically arranged on one side, close to the bolt, of the fixing piece, a connecting piece is arranged between the elastic piece and the top of the fixing piece, the connecting piece is of an arc-shaped structure, and two ends of the connecting piece are respectively connected with the elastic piece and the fixing piece.

Preferably, the fixing piece, the elastic piece and the connecting piece are of an integrally formed structure.

Preferably, both sides of the bottom of the fixing piece are provided with positioning pieces protruding outwards, and the positioning pieces are tightly attached to the inner wall of the wiring frame.

Preferably, the top of the wiring terminal is tightly attached to the inner wall of the top of the cover body.

Compared with the prior art, the invention has the beneficial effects that:

1. in the lever type wiring structure, the rocker arm lever is turned over by screwing the bolt, so that an inner wiring is tightly pressed on the wiring terminal, and convenience in opening and closing of the switch is guaranteed.

2. In this lever wiring structure, can guarantee the fixed of rocking arm lever through the spacing of bolt to rocking arm lever, and then make rocking arm lever to compressing tightly fixed of internal connection, avoid producing not hard up phenomenon.

3. In this lever wiring structure, can guarantee to reset the rocking arm lever when the switch disconnection through the shell fragment, be convenient for take out the external connection, avoid causing the friction damage with the top of rocking arm lever when the external connection is taken out.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the ON state of the present invention;

FIG. 2 is a schematic diagram of the overall structure of the OFF state of the present invention;

FIG. 3 is a schematic diagram of the overall explosive structure of the present invention;

FIG. 4 is a schematic illustration of a partial explosion configuration of the present invention;

FIG. 5 is a schematic view of the internal connections for the ON state of the present invention;

FIG. 6 is a schematic view of the internal connections for the OFF state of the present invention;

FIG. 7 is an exploded view of the rocker lever of the present invention;

fig. 8 is an exploded view of the return spring of the present invention.

In the figure: 1. a cover body; 11. a wiring hole; 12. bolt holes; 2. a base plate; 3. a bolt; 4. external connection; 41. internal wiring; 5. a wiring frame; 51. a circular hole; 52. an opening; 53. positioning blocks; 531. a threaded hole; 6. a wiring terminal; 7. a rocker arm lever; 71. an upper arm; 72. a lower arm; 73. a connecting end; 731. a shaft hole; 74. a fixed shaft; 8. a return spring; 81. a fixing sheet; 811. positioning plates; 82. a spring plate; 83. and (7) connecting the sheets.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

The invention provides a lever type wiring structure, which comprises a cover body 1, wherein a bottom plate 2 is arranged at the bottom of the cover body 1, two wiring holes 11 are formed above the outer wall of one end of the cover body 1 and used for wiring, two bolt holes 12 are formed below the outer wall of one end of the cover body 1, external wires 4 are arranged outside the wiring holes 11, and bolts 3 are arranged outside the bolt holes 12; two wiring terminals 6 are arranged above the inner part of the cover body 1, a wiring frame 5 is arranged between the wiring terminals 6 and the external wiring 4 in the cover body 1, and one end of the external wiring 4 close to the wiring terminals 6 is connected with an internal wiring 41; the wiring frame 5 is a rectangular structure with a hollow interior and openings 52 arranged on two sides, a positioning block 53 is tightly welded on one side of the wiring frame 5 close to the bolt hole 12, a threaded hole 531 is formed in the middle of the positioning block 53, one end of the bolt 3 is in threaded connection with the threaded hole 531 to limit the bolt 3, meanwhile, the bolt 3 can be rotated to move towards the wiring frame 5, one end of the internal contact 41 penetrates through the opening 52 and extends into the wiring frame 5, one end of the wiring terminal 6 also penetrates through the opening 52 and extends into the wiring frame 5, the internal contact 41 is positioned below the wiring terminal 6, a rocker lever 7 is arranged at the bottom of the internal contact 41, a return spring 8 is arranged on one side of the rocker lever 7 away from the bolt 3, the bolt 3 can be rotated to be screwed into the threaded hole and push the rocker lever 7 to rotate, the top of the rocker lever 7 can push the internal contact 41 upwards, when the bolt 3 is reversely screwed, the bolt is moved outwards, the rocker lever 7 is loosened, the rocker lever 7 is restored to the original position under the action of the return spring 8, and the external connection wire 4 is pulled out at the moment, so that the circuit breaking can be realized.

Specifically, the bottom of the wiring frame 5 is tightly attached to the bottom plate 2, so that the wiring frame 5 is fixed.

In addition, the external connection wire 4 and the internal connection wire 41 are integrally formed, so that the external connection wire can be conveniently held by hands, and the movement of the internal connection wire 41 in the connection frame 5 can be controlled.

Further, the rocker arm lever 7 comprises an upper arm 71 and a lower arm 72, the upper arm 71 and the lower arm 72 are located above and below, a connecting end 73 is arranged between the upper arm 71 and the lower arm 72, two sides of the connecting end 73 are respectively connected with the upper arm 71 and the lower arm 72, two ends of the connecting end 73 penetrate through a shaft hole 731, a fixing shaft 74 is rotatably connected inside the shaft hole 731, the length of the fixing shaft 74 is larger than that of the shaft hole 731, round holes 51 are formed in positions, close to the fixing shaft 74, of inner walls of two sides of the positioning bin 5, and the.

Further, when the lower arm 72 is pushed by the one-side bolt 3, the entire rocker lever 7 rotates around the fixed shaft 74, and the upper arm 71 is turned upward, so that one end of the upper arm 71 abuts against the bottom surface of the interconnector 41, and the interconnector 41 is pressed against the terminal block 6, thereby implementing an ON state; when the bolt 3 is separated, the other side of the lower arm 72 is acted by the return spring 8, so that the whole rocker lever 7 rotates in the opposite direction by taking the fixed shaft 74 as the axis, and further the upper arm 71 above is turned downwards, so that one end of the upper arm 71 is separated from the bottom surface of the inner connecting wire 41, and the outer connecting wire 4 can be pulled out, and the OFF state is realized.

Furthermore, the connecting end 73, the upper arm 71 and the lower arm 72 are of an integrally formed structure, so that the whole structure is stable, and the fracture is not easy to cause.

Further, the included angle between the upper arm 71 and the lower arm 72 is 120-.

Further, reset spring 8 adopts the copper material to make, wholly be the U-shaped structure, fine elasticity has, reset spring 8 includes the stationary blade 81 of vertical setting, one side that stationary blade 81 is close to bolt 3 is vertical to be provided with shell fragment 82, be provided with connection piece 83 between the top of shell fragment 82 and stationary blade 81, connection piece 83 is the arc structure, and both ends are connected with shell fragment 82 and stationary blade 81 respectively, when one side of rocking arm lever 7 receives the promotion of bolt 3, thereby underarm 72 can overturn and compress tightly shell fragment 82, when one side of rocking arm lever 7 loses the promotion of bolt 3, shell fragment 82 can be because elastic action pushes back underarm 72, thereby realize rocking arm lever 7's return.

Furthermore, the fixing piece 81, the elastic piece 82 and the connecting piece 83 are of an integrally formed structure, so that the overall structure stability of the reset spring 8 can be guaranteed, and the reset spring is not easy to damage.

Further, the bottom both sides of stationary blade 81 all are provided with outside convex spacer 811, and spacer 811 and the inner wall of location storehouse 5 are closely welded, guarantee stationary blade 81's fixed, avoid receiving the extrusion of external force to cause the removal.

Further, binding post 6's top and the inseparable laminating of the top inner wall of lid 1 guarantee that binding post 6 is fixed, thereby avoid sliding in location storehouse 5 and influence the wiring operation.

When the lever type wiring structure is used, firstly, the inner wiring 41 at one end of the outer wiring 4 is inserted into the wiring hole 11, then the bolt 3 is rotated by an external screwdriver matched with the bolt 4, the bolt 3 is moved inwards, one end of the bolt 3 pushes the lower arm 72 of the rocker lever 7 to rotate around the fixed shaft 74, at the moment, the reset spring 8 is pressed tightly, so that the whole rocker lever 7 is driven to rotate, the upper arm 71 of the rocker lever 7 is pressed against the ground of the inner wiring 41, the inner wiring 41 is pressed tightly with the wiring terminal 6, the ON state is realized, and the inner wiring 4 is limited and fixed by the rocker lever 7; when disconnection is required, the screwdriver is rotated reversely so that the bolt 3 moves outward, one end of the bolt 3 disengages from the lower arm 72 of the rocker lever 7, at this time, the lower arm 72 of the rocker lever 7 is pushed back under the action of the return spring 8 to achieve a return effect, and then the outer contact 4 is pulled out so that the inner contact 41 disengages from the contact terminal 6, i.e., an OFF state is achieved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a lever wiring structure, includes lid (1), its characterized in that: a bottom plate (2) is arranged at the bottom of the cover body (1), two wiring holes (11) are formed above the outer wall of one end of the cover body (1), two bolt holes (12) are formed below the outer wall of one end of the cover body (1), external wires (4) are arranged outside the wiring holes (11), and bolts (3) are arranged outside the bolt holes (12); two wiring terminals (6) are arranged above the inner part of the cover body (1), a positioning bin wiring frame (5) is arranged between the wiring terminals (6) and the external wiring (4) in the cover body (1), and one end, close to the wiring terminals (6), of the external wiring (4) is connected with an internal wiring (41); the wiring frame (5) is a rectangular structure which is hollow inside and provided with openings (52) at two sides, one side of the wiring frame (5) close to the bolt hole (12) is tightly welded with the wiring frame (53), the middle part of the positioning block (53) is provided with a threaded hole (531), one end of the bolt (3) is in threaded connection with the threaded hole (531), one end of the inner connecting wire (41) penetrates through the opening (52) and stretches into the inside of the wiring frame (5), one end of the wiring terminal (6) also penetrates through the opening (52) and stretches into the inside of the wiring frame (5), the inner connecting wire (41) is positioned below the wiring terminal (6), the bottom of the inner connecting wire (41) is provided with a rocker lever (7), one side of the rocker lever (7) far away from the bolt (3) is provided with a return spring (8), and the bolt (3) can be screwed into the threaded hole (531) and push the rocker lever (7) to rotate, the top of the rocker lever (7) can push the inner connecting wire (41) upwards and is attached and pressed with the connecting terminal (6).

2. A lever type wiring structure as claimed in claim 1, wherein: the bottom of the wiring frame (5) is tightly attached to the bottom plate (2).

3. A lever type wiring structure as claimed in claim 1, wherein: the external connecting wire (4) and the internal connecting wire (41) are of an integrally formed structure.

4. A lever type wiring structure as claimed in claim 1, wherein: rocker arm lever (7) are including upper arm (71) that are located the top and lower arm (72) that are located the below, be provided with link (73) between upper arm (71) and lower arm (72), the both sides of link (73) are connected with upper arm (71) and lower arm (72) respectively, shaft hole (731) have been seted up in the both ends link up of link (73), the inside rotation in shaft hole (731) is connected with fixed axle (74), the length of fixed axle (74) is greater than the length in shaft hole (731), round hole (51) have been seted up near fixed axle (74) department to the both sides inner wall of wire connection frame (5), fixed axle (74) and round hole (51) cooperation of pegging graft.

5. A lever type wiring structure as claimed in claim 4, wherein: the connecting end (73), the upper arm (71) and the lower arm (72) are of an integrally formed structure.

6. A lever type wiring structure as claimed in claim 4, wherein: the included angle between the upper arm (71) and the lower arm (72) is 120-150 degrees.

7. A lever type wiring structure as claimed in claim 1, wherein: reset spring (8) are including stationary blade (81) of vertical setting, one side that stationary blade (81) is close to bolt (3) is vertical to be provided with shell fragment (82), be provided with connection piece (83) between the top of shell fragment (82) and stationary blade (81), connection piece (83) are the arc structure, and both ends are connected with shell fragment (82) and stationary blade (81) respectively.

8. A lever type wiring structure as claimed in claim 7, wherein: the fixing piece (81), the elastic piece (82) and the connecting piece (83) are of an integrally formed structure.

9. A lever type wiring structure as claimed in claim 7, wherein: the bottom both sides of stationary blade (81) all are provided with outside convex spacer (811), spacer (811) and the inner wall of wire frame (5) closely laminate.

10. A lever type wiring structure as claimed in claim 1, wherein: the top of the wiring terminal (6) is tightly attached to the inner wall of the top of the cover body (1).