CN112530753B - Binding post and use its circuit breaker - Google Patents
Binding post and use its circuit breaker Download PDFInfo
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- CN112530753B CN112530753B CN202011354495.XA CN202011354495A CN112530753B CN 112530753 B CN112530753 B CN 112530753B CN 202011354495 A CN202011354495 A CN 202011354495A CN 112530753 B CN112530753 B CN 112530753B
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- cavity
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- hole
- adjusting bolt
- clamping piece
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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
-
- 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
- H01H71/04—Means for indicating condition of the switching device
-
- 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
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
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Abstract
The invention relates to the technical field of electricians, and discloses a wiring terminal and a circuit breaker using the same, wherein the wiring terminal comprises a shell, a flexible ring sleeve, a clamping component, an adjusting bolt and a torsion indicating dial, one end of the flexible ring sleeve is fixed in the shell, the other end of the flexible ring sleeve is used for accommodating an external cable, the clamping component comprises a clamping piece and an elastic piece, one end of the clamping piece is sleeved outside one end of the flexible ring sleeve, the elastic piece elastically presses against the clamping piece to clamp the external cable, the tail end of a screw rod of the adjusting bolt is in threaded connection with the other end of the clamping piece, a clamping bulge is arranged at the root part of the screw rod in a protruding mode to adjust the distance between the clamping piece and the clamping bulge through rotating the adjusting bolt, and the torsion indicating dial is rotatably arranged on the shell and comprises a clamping groove capable of being matched with the clamping bulge. Adjusting bolt receives external torsion, and the torsion instruction dish shows the torsion value, through observing whether numerical value reaches the standard value, makes things convenient for maintainer rapid judgement adjusting bolt's state, improves binding post's safety in utilization and reliability.
Description
Technical Field
The invention relates to the technical field of electricians, in particular to a wiring terminal and a circuit breaker using the same.
Background
A circuit breaker refers to a switching device capable of closing, carrying, and breaking current under normal or abnormal circuit conditions. The circuit breaker can be used for distributing electric energy and protecting a power supply circuit, a motor and the like.
For the circuit breaker wiring terminal in the 0.4KV ammeter case, when manual wiring, the adjusting bolt is rotated to compress the external cable by the wiring terminal, however, the wiring mode often causes the poor contact between the wiring terminal and the external cable because the torque force of the adjusting bolt does not reach the calibrated torque force, thereby causing the bad phenomena of heating and burning the circuit breaker.
Therefore, a connecting terminal and a circuit breaker using the same are needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a wiring terminal which can display a torsion value applied to an adjusting bolt, is convenient for a maintainer to quickly judge the state of the adjusting bolt, corrects the state in time and improves the safety.
The invention also aims to provide the circuit breaker, which is convenient to overhaul, convenient to operate, high in safety and wide in application, and an external cable is prevented from loosening and falling off by applying the wiring terminal.
In order to realize the purpose, the following technical scheme is provided:
a connecting terminal for connecting a bus bar of a main circuit and an external cable comprises:
a housing;
one end of the flexible loop is fixed in the shell, and the other end of the flexible loop is used for accommodating the external cable;
the clamping assembly comprises a clamping piece and an elastic piece, one end of the clamping piece is sleeved outside one end of the flexible ring sleeve, and the elastic piece elastically pushes against the clamping piece to clamp the external cable;
the tail end of a screw rod of the adjusting bolt is in threaded connection with the other end of the clamping piece, and a clamping boss is convexly arranged at the root part of the screw rod so as to adjust the distance between the clamping piece and the clamping boss by rotating the adjusting bolt;
and the torque indicating disc is rotatably arranged on the shell and comprises a clamping groove which can be matched with the clamping protrusion.
As the alternative of the wiring terminal, a clamping hole is formed in the center of the torque indicating disc, and a plurality of clamping grooves are formed in the circumferential direction of the inner wall of the clamping hole at intervals.
As binding post's alternative, the casing includes that the first cavity of first through-hole is seted up on the top, flexible ring cover with the clamping piece all is located in the first cavity, threaded hole and fourth through-hole have been seted up respectively to the top and the bottom of clamping piece, flexible ring cover is including the fixed part that from top to bottom connects gradually and be annular flexible joint portion, the fixed part with first cavity fixed connection, fourth through-hole cup joint in flexible joint portion, adjusting bolt passes first through-hole with the screw hole spiro union.
As an alternative of the wiring terminal, the housing further comprises a second cavity with a second through hole formed in the top end, the second cavity is located above the first cavity and communicated with the first cavity, a limiting part is arranged on the screw rod of the adjusting bolt in a protruding mode, the adjusting bolt is sleeved with the elastic part, one end of the elastic part is connected with the limiting part, and the other end of the elastic part is connected with the top wall or the bottom wall of the second cavity.
As an alternative of the wiring terminal, the housing further includes a third cavity with a third through hole formed at a top end thereof, the third cavity is located above the second cavity and is communicated with the second cavity, the head of the adjusting bolt and a part of the screw rod are located in the third cavity, central axes of the first through hole, the second through hole and the third through hole are overlapped, and an aperture of the third through hole is larger than apertures of the first through hole and the second through hole.
As an alternative to the connection terminal, the inner wall of the third cavity is provided with an annular groove, and the torque indicator panel is located in the annular groove.
As an alternative of the wiring terminal, a wiring port communicated with the first cavity is formed in the lower portion of the side wall of the shell, the wiring port is used for being connected with the external cable in an inserting mode, and the position of the flexible joint portion corresponds to that of the wiring port.
As an alternative of the wiring terminal, the first cavity, the second cavity and the third cavity are integrally formed.
As an alternative to the circuit breaker, a switching device and the connecting terminal as described above are included, the switching device being capable of controlling the circuit of the circuit breaker to be switched on and off.
As an alternative of the circuit breaker, the circuit breaker further comprises an indicator light electrically connected with an internal element of the circuit breaker for displaying on/off of the internal element.
Compared with the prior art, the invention has the beneficial effects that:
according to the wiring terminal, the clamping piece is driven to move downwards by rotating the adjusting bolt, the flexible ring sleeve is enabled to wrap the external cable, the adjusting bolt is continuously rotated, the adjusting bolt is subjected to external torque force at the moment, the adjusting bolt moves upwards to enable the clamping protrusion to be matched with the clamping groove of the torque force indicating dial, the torque force indicating dial is rotated and the torque force value of the bolt is displayed, and by observing whether the numerical value reaches a standard value, a maintainer can conveniently and quickly judge the state of the adjusting bolt and timely correct the state, poor contact between the wiring terminal and the external cable is avoided, and the use safety and reliability of the wiring terminal are improved.
The circuit breaker provided by the invention realizes the display of the torsion of the adjusting bolt, is convenient for maintainers to quickly judge the state of the adjusting bolt, corrects the state in time and improves the safety of the circuit breaker.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings may be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a connection terminal according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an indicator panel provided in an embodiment of the present invention, the indicator panel having a card slot;
fig. 3 is a schematic structural diagram of an indicator panel provided by an embodiment of the present invention, where the indicator panel has a plurality of card slots;
FIG. 4 is a schematic view of a first cross-section of a housing provided in accordance with an embodiment of the present invention;
fig. 5 is a second schematic cross-sectional view of a housing according to an embodiment of the invention.
Reference numerals are as follows:
100. a wiring terminal; 200. an external cable;
1. a housing; 2. a flexible loop; 3. a clamping assembly; 4. adjusting the bolt; 5. a torque indicating dial;
11. a first cavity; 111. a wiring port; 112. a main circuit connection part; 113. a first through hole; 12. a second cavity; 121. a second through hole; 13. a third cavity; 131. a third through hole; 132. an annular groove;
21. a fixed part; 22. a flexible joint portion;
31. a clamping member; 311. a threaded hole; 312. a fourth via hole; 32. an elastic member;
41. clamping convex; 42. a limiting member;
51. a card slot; 52. a clamping hole.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships usually placed when the product is used, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", and the like are used for descriptive purposes only or to distinguish between different structures or components 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 stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; 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.
The details of the present invention will be described below with reference to fig. 1 to 5.
Example one
As shown in fig. 1-2, the present embodiment discloses a connection terminal for connecting a bus bar of a main loop and an external cable 200, the connection terminal 100 includes a housing 1, a flexible ring sleeve 2, a clamping assembly 3, an adjusting bolt 4 and a torque indicator panel 5, there are two working stages when the connection terminal 100 rotates the adjusting bolt 4 for connecting, the first stage is: the flexible loop 2 begins to shrink the accommodating space to just completely wrap the external cable 200; the second stage is as follows: and the containing space is continuously contracted, the flexible ring sleeve 2 starts to generate a tightening force on the external cable 200, namely, the adjusting bolt 4 starts to receive a torsion force, and the torsion value is further displayed. The shell 1 is made of insulating materials such as hard plastics and resin, an electric shock warning mark is additionally arranged outside the shell 1, and the flexible ring sleeve 2 and the clamping component 3 are both positioned in the shell 1; one end of the flexible loop 2 is fixed in the shell 1, and the other end is used for accommodating an external cable 200; the clamping assembly 3 comprises a clamping piece 31 and an elastic piece 32, one end of the clamping piece 31 is sleeved outside one end of the flexible ring sleeve 2, the clamping piece 31 is made of a conductive material, the flexible ring sleeve 2 is pressed down through the clamping piece 31, the space for accommodating the external cable 200 of the flexible ring sleeve 2 is reduced, the external cable 200 is tightly wrapped and connected with the flexible ring sleeve 2, the connection and the conduction of an internal circuit of the wiring terminal 100 are realized, the elastic piece 32 elastically abuts against the clamping piece 31 to clamp the external cable 200, and meanwhile, the adjusting bolt 4 always has a downward movement trend; the tail end of a screw rod of the adjusting bolt 4 is in threaded connection with the other end of the clamping part 31, a clamping protrusion 41 is convexly arranged at the root part of the screw rod, so that the distance between the clamping part 31 and the clamping protrusion 41 is adjusted by rotating the adjusting bolt 4, the external cable 200 is clamped or loosened, and the clamping protrusion 41 extends along the vertical direction; torsion indicating dial 5 rotates and sets up on casing 1, and torsion indicating dial 5 includes draw-in groove 51, and when rotatory adjusting bolt 4 got into the second stage, adjusting bolt 4 rotated upward and moved, made protruding 41 of card and draw-in groove 51 cooperate, and then drive torsion indicating dial 5 and rotate along with adjusting bolt 4, and torsion indicating dial 5 surface uses the center to be provided with the scale mark as centre of a circle circumference.
In short, the rotating adjusting bolt 4 drives the clamping piece 31 to move down, the flexible ring sleeve 2 is made to wrap the external cable 200, the rotating adjusting bolt 4 is continuously rotated, the adjusting bolt 4 receives external torque force at the moment, the adjusting bolt 4 moves upwards to enable the clamping protrusion 41 to be matched with the clamping groove 51 of the torque indicating disc 5, the rotation of the torque indicating disc 5 is achieved, the torque force value received by the adjusting bolt 4 is displayed, whether the numerical value reaches a standard value is observed, the state of the adjusting bolt 4 is conveniently and quickly judged by an overhaul worker, the correcting is timely carried out, poor contact between the wiring terminal 100 and the external cable 200 is avoided, and the use safety and reliability of the wiring terminal 100 are improved.
Further, as shown in fig. 3, a clamping hole 52 is formed in the center of the torque indicator panel 5, a plurality of clamping grooves 51 are circumferentially arranged on the inner wall of the clamping hole 52 at intervals, when the second stage is started, the adjusting bolt 4 rotates and moves upwards, the clamping protrusion 41 can be conveniently inserted into or clamped into the clamping groove 51, and meanwhile, the weight of the torque indicator panel 5 can be reduced. The inner wall of the clamping hole 52 can also be circumferentially provided with teeth at intervals, the clamping protrusions 41 are clamped with the teeth, clamping firmness is further improved, the rotation error of the torsion indicating disc 5 is reduced, and the torsion value received by the adjusting bolt 4 is accurately displayed.
The connection terminal 100 of the conventional circuit breaker adopts a movable pressing sheet to press the head of the external cable 200, so that the connection between the bus bar of the main loop and the external cable 200 is realized. However, the head of the external cable 200 can only be clamped up and down, so that the stressed area is limited, and creep deformation or fixed object vibration is generated due to temperature difference change, so that the connection terminal 100 and the external cable 200 are in poor contact, the risk of power failure or short circuit is caused, and the production and life are seriously affected.
In view of the above problem, as shown in fig. 1 to 4, the housing 1 of this embodiment includes a first cavity 11 having a first through hole 113 penetrating through the top end thereof in the vertical direction, the flexible loop 2 and the clamping member 31 are both located in the first cavity 11, the top and the bottom of the clamping member 31 are respectively provided with a threaded hole 311 and a fourth through hole 312, the flexible loop 2 may be an annular iron sheet, an annular copper sheet, or a steel cable, the flexible loop 2 includes a fixing portion 21 and an annular flexible joint portion 22 connected in sequence from top to bottom, the fixing portion 21 is fixedly connected to the first cavity 11, a main loop connecting portion 112 is disposed at a connection position at this time, the main loop connecting portion 112 is used for inserting a bus into the connection terminal 100, the fourth through hole 312 is sleeved on the flexible joint portion 22, the fourth through hole 312 penetrates through the flexible joint portion in the vertical direction and has a diameter smaller than that of the external cable 200, when the flexible joint portion 22 is tightened, the external cable 200 is located outside the fourth through hole 312, so as to achieve the functions of limiting and stably connecting the external cable 200. The adjusting bolt 4 is screwed with the screw hole 311 through the first through hole 113. The clamping piece 31 can be a square block, the inside of the first cavity 11 is also a square cavity, when the adjusting bolt 4 rotates relative to the clamping piece 31, the clamping piece 31 can only move up and down along the first cavity 11, the shape of the clamping piece 31 and the shape of the first cavity 11 are not limited, and the shape that the clamping piece 31 can only move up and down along the first cavity 11 is within the protection range of the scheme as long as the shape can be realized. The adjusting bolt 4 is rotated to drive the clamping piece 31 to move downwards, so that the connecting terminal 100 can stably fasten the external cable 200 inserted into the flexible joint part 22, and meanwhile, the conduction between the bus and the external cable 200 is realized, on one hand, the connection of external cables 200 of different models can be met, on the other hand, the cladding surfaces of the flexible joint part 22 and the external cable 200 are increased, the falling is not easy, and the device is safe and reliable; the first cavity 11 is arranged in the shell 1, so that the quality of the wiring terminal 100 can be reduced, and the production cost is reduced.
Further, the housing 1 further includes a second cavity 12 having a second through hole 121 at a top end thereof, the second cavity 12 is located above the first cavity 11 and is communicated with the first cavity 11, a limiting member 42 is convexly disposed on a screw rod of the adjusting bolt 4, the elastic member 32 is sleeved on the screw rod of the adjusting bolt 4, one end of the elastic member 32 is connected with the limiting member 42, and the other end of the elastic member is connected with a top wall or a bottom wall of the second cavity 12. The elastic member 32 in this embodiment may be a compression spring, two ends of the compression spring are respectively connected to the top walls of the limiting member 42 and the second cavity 12 and are always in a compressed state, and when the elastic member is in the first stage, due to the action of the compression spring, the limiting member 42 is always abutted against the bottom wall of the second cavity 12, so that the adjusting bolt 4 does not move upward. When entering the second stage, the adjusting bolt 4 starts to move upward relative to the first cavity 11, so that the operator can sense that the flexible joint portion 22 covers the external cable 200 and further apply a clamping force to the external cable 200.
Further, the housing 1 further includes a third cavity 13 having a third through hole 131 at a top end thereof, the third cavity 13 is located above the second cavity 12 and is communicated with the second cavity 12, the head of the adjusting bolt 4 and a part of the screw rod are located in the third cavity 13, central axes of the first through hole 113, the second through hole 121 and the third through hole 131 are overlapped, and an aperture of the third through hole 131 is larger than apertures of the first through hole 113 and the second through hole 121. When the central axes of the three through holes coincide, the rod part of the adjusting bolt 4 can pass through smoothly, the adjusting of the adjusting bolt 4 on the flexible joint part 22 is realized, the diameter of the head part of the adjusting bolt 4 is larger than the diameters of the first through hole 113 and the second through hole 121 and smaller than the diameter of the third through hole 131, the head part of the adjusting bolt 4 can enter the third cavity 13, meanwhile, the head part of the adjusting bolt 4 is prevented from entering the second cavity 12, and the limiting of the adjusting bolt 4 moving downwards along the vertical direction is realized.
Further, the inner wall of the third cavity 13 is provided with an annular groove 132, and the torsion indicating plate 5 is located in the annular groove 132. The head of adjusting bolt 4 is located the upper end of torsion indicator panel 5, and card protruding 41 is located the downside of dial 42 and is located the part fixed connection of third cavity 13 with adjusting bolt 4, and annular groove 132 extends along vertical direction, when adjusting bolt 4 and torsion indicator panel 5 joint, realizes that torsion indicator panel 5 can move up along with adjusting bolt 4 when the torsion that adjusting bolt 4 received is shown in the rotation.
Further, as shown in fig. 5, a wiring port 111 communicating with the first cavity 11 is formed at a lower portion of a side wall of the housing 1, the wiring port 111 is used for inserting an external cable 200, and the flexible joint portion 22 corresponds to the wiring port 111. When the flexible joint part 22 is in an initial state, the opening of the flexible joint part 22 is larger than the diameter of the external cable 200, so that the external cables 200 of different models can be conveniently inserted, then the external cable 200 penetrates through the wiring port 111 and is inserted into the flexible joint part 22, and the flexible joint part 22 can clamp or loosen the external cable 200 under the action of external force.
Further, the first cavity 11, the second cavity 12 and the third cavity 13 are integrally formed. The first cavity 11, the second cavity 12 and the third cavity 13 can be injection molded by adopting an insulating plastic material, so that the overall structural stability of the wiring terminal 100 is improved, the processing technology is reduced, and the production cost is reduced.
The invention also provides a circuit breaker, which comprises a switch device and the wiring terminal 100, wherein the switch device can control the circuit on-off of the circuit breaker. The embodiment can show the torsion value that receives when adjusting bolt 4 adjusts and presss from both sides tight external cable 200, guarantees the fastening of circuit breaker to external cable 200, and it is convenient to adjust, safe and reliable. Further, this circuit breaker still includes the pilot lamp, and the pilot lamp is connected with the internal element electricity of circuit breaker for show the break-make of internal element, make things convenient for the maintainer to inspect the quality of this circuit breaker, realize the safe suggestion to operating personnel simultaneously, improve the security level of this circuit breaker.
Example two
Compared with the first embodiment, the basic structure of the connection terminal 100 provided in this embodiment is the same as that of the first embodiment, and only the arrangement of the elastic element 32 and the torsion indicator panel 5 is different, and the structure that is the same as that of the first embodiment is not described again in this embodiment.
Furthermore, the clamping protrusion 41 has magnetism, the torque indicating dial 5 is a circular iron sheet with scale marks, when the torque value is displayed at the second stage, in the process of moving the adjusting bolt 4 upwards, the clamping protrusion 41 can attract the circular iron sheet to rotate and corresponds to the position of the clamping groove 51, then the clamping protrusion is clamped to the clamping groove 51, the clamping protrusion 41 and the torque indicating dial 5 can synchronously rotate, then the torque value is displayed, and convenience is brought to maintenance personnel to read and judge whether the external cable 200 is to be loosened or not, whether the clamping force needs to be increased or not, and safety accidents such as open circuit or short circuit are avoided.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. A terminal for connection of a bus bar of a main circuit to an external cable (200), comprising:
a housing (1); the shell (1) comprises a first cavity (11) with a first through hole (113) at the top end and a second cavity (12) with a second through hole (121) at the top end;
one end of the flexible loop (2) is fixed in the shell (1), and the other end of the flexible loop (2) is used for accommodating the external cable (200);
the clamping assembly (3) comprises a clamping piece (31) and an elastic piece (32), and one end of the clamping piece (31) is sleeved outside one end of the flexible ring sleeve (2);
the tail end of a screw rod of the adjusting bolt (4) is in threaded connection with the other end of the clamping piece (31), and a clamping protrusion (41) is convexly arranged at the root part of the screw rod so as to adjust the distance between the clamping piece (31) and the clamping protrusion (41) by rotating the adjusting bolt (4);
the flexible ring sleeve (2) and the clamping piece (31) are both located in the first cavity (11), a threaded hole (311) and a fourth through hole (312) are respectively formed in the top and the bottom of the clamping piece (31), the flexible ring sleeve (2) comprises a fixing part (21) and an annular flexible joint part (22) which are sequentially connected from top to bottom, the fixing part (21) is fixedly connected with the first cavity (11), the fourth through hole (312) is sleeved on the flexible joint part (22), and the adjusting bolt (4) penetrates through the first through hole (113) and is in threaded connection with the threaded hole (311);
the second cavity (12) is located above the first cavity (11) and is communicated with the first cavity (11), a limit part (42) is convexly arranged on a screw rod of the adjusting bolt (4), the elastic part (32) is sleeved on the adjusting bolt (4), one end of the elastic part (32) is connected with the limit part (42), and the other end of the elastic part is connected with the top wall or the bottom wall of the second cavity (12);
and the torque indicating disc (5) is rotationally arranged on the shell (1) and comprises a clamping groove (51) matched with the clamping protrusion (41).
2. The wiring terminal according to claim 1, wherein a clamping hole (52) is formed in the center of the torque indicating plate (5), and a plurality of clamping grooves (51) are formed in the inner wall of the clamping hole (52) at intervals in the circumferential direction.
3. The terminal according to claim 1, wherein the housing (1) further comprises a third cavity (13) having a third through hole (131) at the top end, the third cavity (13) is located above the second cavity (12) and is communicated with the second cavity (12), the head and a part of the screw of the adjusting bolt (4) are located in the third cavity (13), the central axes of the first through hole (113), the second through hole (121) and the third through hole (131) are coincident, and the aperture of the third through hole (131) is larger than the apertures of the first through hole (113) and the second through hole (121).
4. A terminal according to claim 3, characterized in that the inner wall of the third cavity (13) is provided with an annular groove (132), and the torsion indicator disc (5) is located in the annular groove (132).
5. A terminal according to claim 1, wherein a lower portion of a sidewall of the housing (1) is provided with a wire connection port (111) communicating with the first cavity (11), the wire connection port (111) is used for connecting the external cable (200), and the flexible joint portion (22) corresponds to the position of the wire connection port (111).
6. A terminal according to claim 4, characterized in that the first cavity (11), the second cavity (12) and the third cavity (13) are integrally formed.
7. A circuit breaker, characterized in that it comprises a switching device and a terminal according to any one of claims 1 to 6, said switching device being able to control the opening and closing of the circuit of said circuit breaker.
8. The circuit breaker of claim 7, further comprising an indicator light electrically connected to an internal component of the circuit breaker for indicating the switching of the internal component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354495.XA CN112530753B (en) | 2020-11-26 | 2020-11-26 | Binding post and use its circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354495.XA CN112530753B (en) | 2020-11-26 | 2020-11-26 | Binding post and use its circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112530753A CN112530753A (en) | 2021-03-19 |
| CN112530753B true CN112530753B (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011354495.XA Active CN112530753B (en) | 2020-11-26 | 2020-11-26 | Binding post and use its circuit breaker |
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| Country | Link |
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| CN (1) | CN112530753B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2464570A1 (en) * | 1979-09-05 | 1981-03-06 | Saparel | TERMINAL CONNECTION FOR ELECTRICAL APPLIANCES |
| IL159027A (en) * | 2003-11-24 | 2008-03-20 | Hanoch Guy | Torque indicating wrench |
| FR2959613B1 (en) * | 2010-04-30 | 2012-04-20 | Schneider Electric Ind Sas | CONNECTING SYSTEM FOR SIGNALING THE TIGHTENING TORQUE OF A SCREW TERMINAL. |
| FR2975232B1 (en) * | 2011-05-13 | 2013-05-10 | Schneider Electric Ind Sas | DEVICE FOR SIGNALING THE TIGHTENING TORQUE OF A SCREW TERMINAL |
| FR3086114B1 (en) * | 2018-09-13 | 2020-09-04 | Schneider Electric Ind Sas | TERMINAL FOR CONNECTING AN ELECTRIC CONDUCTOR TO THE CONNECTION RANGE OF AN ELECTRICAL DEVICE, AND ELECTRICAL PROTECTION DEVICE CONTAINING SUCH A TERMINAL |
| CN110553777B (en) * | 2019-09-30 | 2024-04-30 | 山东泰开隔离开关有限公司 | Visual static contact device of outdoor high-voltage isolating switch clamping force |
-
2020
- 2020-11-26 CN CN202011354495.XA patent/CN112530753B/en active Active
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| Publication number | Publication date |
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| CN112530753A (en) | 2021-03-19 |
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