CN216648194U - Circuit breaker with anticreep line mechanism - Google Patents

Abstract

The application provides a circuit breaker with anticreep line mechanism belongs to circuit breaker technical field. The circuit breaker with the wire-dropping prevention mechanism comprises a circuit breaker body and a wiring assembly. The wiring assembly comprises a shell, a plastic part, a pushing part and a clamping pin part, the shell is fixedly connected with the circuit breaker body, a wiring hole is formed in the shell in a penetrating mode, the plastic part comprises a conducting strip and an elastic sheet, the conducting strip is provided with two conducting strips, the two conducting strips are electrically connected with the circuit breaker body, the two conducting strips are movably connected with the inner wall of the shell, one conducting strip is fixedly connected with the pushing part, and the other conducting strip is tightly abutted to the elastic sheet. In this application, the wiring subassembly can make the tight clamp of electric wire firmly and block in the wiring hole, prevents the risk that the electric wire pine takes off to need not the instrument and can connect a telephone switchboard and do not have the naked electrified metal that leaks outward, have fine security and reliability.

Description

Circuit breaker with anticreep line mechanism

Technical Field

The application relates to the technical field of circuit breakers, in particular to a circuit breaker with a wire-dropping prevention mechanism.

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 current circuit breaker utilizes the screwdriver to screw the screw and presss from both sides tightly the electric wire in the wiring hole usually, and general electric wire principal ingredients is copper, and copper plasticity is strong and elasticity is not good, and is not hard up easily in the wiring hole, in case not hard up will take off from the downthehole pine of wiring, causes the danger of electric leakage, and the screw of screwdriver contact is the area point moreover, if the not good danger of causing the electric shock very easily of screwdriver insulating properties.

How to invent a circuit breaker with a wire-dropping prevention mechanism to improve the problems becomes a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to compensate above not enough, this application provides a circuit breaker with anticreep line mechanism, aims at improving the electric wire and takes off and screw the electrified problem of leaking and causing the electric shock easily in the wiring hole of circuit breaker easily.

The embodiment of the application provides a circuit breaker with anticreep line mechanism, including circuit breaker body and wiring subassembly.

The wiring assembly comprises a shell, a plastic part, a pushing part and a clamping pin part, the shell is fixedly connected with the circuit breaker body, a wiring hole is formed in the shell in a penetrating mode, the plastic part comprises a conducting strip and an elastic piece, the conducting strip is provided with two conducting strips, the two conducting strips are electrically connected with the circuit breaker body, the two conducting strips are movably connected with the inner wall of the shell, one conducting strip is fixedly connected with the pushing part, the other conducting strip is tightly connected with the elastic piece, the other side of the elastic piece is tightly connected with the inner wall of the shell, the pushing part is fixedly connected with the shell, the clamping pin part is fixedly connected with the shell, and the clamping pin part is movably connected with the pushing part.

In the implementation process, the electric wire passes through the wiring hole and is inserted between the two conducting strips, the conducting strips are arranged in a wave-fold shape, the pushing piece is operated to push one conducting strip to the other conducting strip, the electric wire is plasticized into the wave-fold shape, the pushing piece is clamped with the clamping pin piece after being pushed in place, the pushing piece is fixed so far, the conducting strip fixedly connected with the pushing piece is also fixed at the same time, the elastic piece tightly presses the other conducting strip against the electric wire, the electric wire is tightly clamped by the two conducting strips, the electric wire is prevented from loosening and being in poor contact, the wave-fold electric wire has good anti-falling characteristics and contact area with the conducting strips, even if the two conducting strips are loosened, the wave-fold electric wire cannot fall off from the wiring hole, the reliability is good, the electric wire can be connected without tools, and no exposed charged metal is left, the convenience and the safety are good, when the folded electric wire needs to be pulled out, the electric wire can be easily pulled out by rotating the electric wire by 90 degrees.

In a specific embodiment, the inner wall of the casing is provided with a groove adapted to the corresponding conductive sheet, and the elastic sheet and the corresponding conductive sheet are disposed in the groove.

In a specific embodiment, the plastic part further comprises two limiting strips, wherein the two limiting strips are fixedly connected with the inner wall of the shell, and the two limiting strips are movably attached to the two ends of the corresponding conducting strip respectively.

In the implementation process, the groove is used for controlling the gesture of the elastic sheet and the conducting sheet corresponding to the elastic sheet when the elastic sheet moves, and the limiting strip prevents the conducting sheet from loosening from the groove when no electric wire is connected.

In a specific embodiment, the pushing member comprises a rocker arm, a push rod, a connecting rod I, a connecting rod II and a sliding block.

In a specific implementation scheme, one end of the rocker arm is hinged to the outer wall of the shell, one end of the push rod is hinged to the rocker arm, and a through hole corresponding to the wiring hole is formed in the rocker arm in a penetrating mode.

In a specific embodiment, one end of the connecting rod I is hinged with one end of the connecting rod II and the other end of the push rod.

In a specific embodiment, the other end of the connecting rod I is hinged with the inner wall of the shell, and the other end of the connecting rod II is hinged with the sliding block.

In a specific embodiment, the sliding blocks are fixedly connected with the corresponding conducting strips, and the sliding blocks are slidably connected with the inner wall of the shell.

In the above-mentioned realization in-process, the rocking arm is to the casing laminating in-process, drive the push rod and push connecting rod I and connecting rod II, make connecting rod I and connecting rod II become the extension form by buckling the form, from this with the slider area correspond the conducting strip and slide to another conducting strip, press from both sides the electric wire tightly between two conducting strips, it needs to explain that, when the rocking arm laminates the casing completely, connecting rod I and connecting rod II are stretched out and are located a straight line, the bounce of slider is almost all transmitted to the casing by connecting rod I and connecting rod II, and the power of transmitting on the push rod can be ignored, reduce the possibility that the rocking arm unclamped.

In a specific embodiment, the detent member includes a detent tongue and a spring, both the detent tongue and the spring are movably embedded in the side wall of the housing, one end of the spring abuts against the housing, and the other end of the spring abuts against the detent tongue.

In a specific implementation scheme, a pin hole matched with the pin tongue is formed in the rocker arm in a penetrating mode, and the pin tongue is movably connected to the rocker arm in a clamping mode through the pin hole.

In the implementation process, after the rocker arm is completely attached to the shell, the pin control on the rocker arm is sleeved on the pin tongue, the pin tongue is ejected out by the spring to prevent the pin tongue from returning, the possibility of loosening of the rocker arm is further reduced, and the rocker arm can be opened by pressing the pin tongue when the rocker arm needs to be opened, so that the rocker arm is very convenient without tools.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a circuit breaker with a wire-drop-preventing mechanism according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a first state of the wiring assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram illustrating a connection relationship between a plastic part and a housing according to an embodiment of the present disclosure;

fig. 4 is a structural diagram of a second state of the wiring assembly according to the embodiment of the present application.

In the figure: 10-a circuit breaker body; 20-a wiring assembly; 210-a housing; 220-a plastic piece; 221-a conductive sheet; 222-a spring plate; 223-limit strip; 230-a pushing member; 231-a rocker arm; 232-push rod; 233-connecting rod I; 234-link II; 235-a slider; 240-a detent member; 241-latch tongue; 242-spring.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, 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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only 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 one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, the present application provides a circuit breaker having a wire-drop prevention mechanism including a circuit breaker body 10 and a wire connection assembly 20.

Wherein, wiring subassembly 20 can make the tight clamp of electric wire firmly and block in the terminal hole, prevents the risk that the electric wire pine takes off to need not the instrument and can connect a line and do not have naked electric metal that leaks outward, have fine security and reliability.

Referring to fig. 1, 2 and 3, the wiring assembly 20 includes a housing 210, a plastic member 220, a pushing member 230, and a latch member 240, the housing 210 is fixedly connected to the circuit breaker body 10, a wiring hole is formed through the housing 210, the plastic member 220 includes two conductive sheets 221 and an elastic sheet 222, the two conductive sheets 221 are electrically connected to the circuit breaker body 10, the two conductive sheets 221 are movably connected to an inner wall of the housing 210, one of the conductive sheets 221 is fixedly connected to the pushing member 230, the other conductive sheet 221 abuts against the elastic sheet 222, the other side of the elastic sheet 222 abuts against an inner wall of the housing 210, the pushing member 230 is fixedly connected to the housing 210, the latch member 240 is fixedly connected to the housing 210, and the latch member 240 is movably connected to the pushing member 230. The electric wire passes through the wiring hole and is inserted between the two conducting strips 221, the conducting strips 221 are arranged in a wave-fold shape, the pushing piece 230 is operated to push one of the conducting strips 221 to the other conducting strip 221, the electric wire is plasticized into the wave-fold shape, the pushing piece 230 is clamped with the clamping pin piece 240 after being pushed in place, the pushing piece 230 is fixed till then, the conducting strip 221 fixedly connected with the pushing piece 230 is also fixed, the elastic piece 222 supports the other conducting strip 221 against the electric wire, so that the electric wire is tightly clamped by the two conducting strips 221, the electric wire is prevented from being loosened and being in poor contact, the wave-fold electric wire has good anti-falling characteristics and contact area with the conducting strips 221, even if the two conducting strips 221 are loosened, the wave-fold electric wire cannot fall from the wiring hole, the electric wire has good reliability, no tool is needed, no exposed live metal is needed, and the electric wire has good convenience and safety, when the folded electric wire needs to be pulled out, the electric wire can be easily pulled out by rotating the electric wire by 90 degrees.

Referring to fig. 3, the inner wall of the housing 210 is provided with a groove adapted to the corresponding conductive sheet 221, and the elastic sheet 222 and the corresponding conductive sheet 221 are disposed in the groove. The plastic part 220 further comprises two limiting strips 223, the two limiting strips 223 are fixedly connected with the inner wall of the shell 210, and the two limiting strips 223 are movably attached to two ends of the corresponding conducting strip 221 respectively. The groove is used for controlling the moving posture of the elastic sheet 222 and the conductive sheet 221 corresponding to the elastic sheet, and the limiting strip 223 prevents the conductive sheet 221 from loosening from the groove when no wire is connected.

Referring to fig. 4, the pushing member 230 includes a swing arm 231, a push rod 232, a link i 233, a link ii 234, and a slider 235. Rocking arm 231 one end is articulated with casing 210 outer wall, and push rod 232 one end is articulated with rocking arm 231, runs through on the rocking arm 231 and sets up the through-hole corresponding with the wiring hole. One end of the connecting rod I233 is hinged with one end of the connecting rod II 234 and the other end of the push rod 232. The other end of the connecting rod I233 is hinged with the inner wall of the shell 210, and the other end of the connecting rod II 234 is hinged with the sliding block 235. The sliding blocks 235 are fixedly connected with the corresponding conducting strips 221, and the sliding blocks 235 are connected with the inner wall of the shell 210 in a sliding manner. In the process that the rocker 231 is attached to the housing 210, the push rod 232 is driven to push the connecting rod I233 and the connecting rod II 234, so that the connecting rod I233 and the connecting rod II 234 are changed from a bent state to an extended state, the slider 235 carries the corresponding conducting strip 221 to slide towards the other conducting strip 221, and an electric wire is clamped between the two conducting strips 221.

Referring to fig. 2 and 4, the locking member 240 includes a tongue 241 and a spring 242, the tongue 241 and the spring 242 are movably embedded in the sidewall of the housing 210, one end of the spring 242 abuts against the housing 210, and the other end of the spring 242 abuts against the tongue 241. The rocker arm 231 is provided with a pin hole matched with the pin tongue 241 in a penetrating manner, and the pin tongue 241 is movably clamped on the rocker arm 231 through the pin hole. After the rocker arm 231 is completely attached to the housing 210, the pin control on the rocker arm 231 is sleeved on the pin tongue 241, the spring 242 ejects the pin tongue 241 to prevent the pin tongue 241 from withdrawing, the possibility of loosening the rocker arm 231 is further reduced, when the rocker arm 231 needs to be opened, the rocker arm 231 can be opened by pressing the pin tongue 241, and the tool is not needed, so that the convenience is realized.

The working principle of the circuit breaker with the wire disconnection preventing mechanism is as follows: in the process that the rocker arm 231 is attached to the shell 210, the push rod 232 is driven to push the connecting rod I233 and the connecting rod II 234, the connecting rod I233 and the connecting rod II 234 are changed from a bent shape to an extended shape, therefore, the sliding block 235 drives the corresponding conducting strip 221 to slide towards the other conducting strip 221, an electric wire is clamped between the two conducting strips 221, the electric wire is shaped into a corrugated shape by the corrugated conducting strip 221, the contact area and the anti-falling-off characteristic are better, after the conducting strips 221 are extruded in place, the rocker arm 231 is completely attached to the shell 210, the pin control on the rocker arm 231 is sleeved on the pin tongue 241, the spring 242 ejects the pin tongue 241 to prevent the pin tongue 241 from returning back, the possibility that the rocker arm 231 is loosened is further reduced, and when the rocker arm 231 needs to be opened, the pin tongue 241 is pressed, and the rocker arm 231 can be opened.

It should be noted that the specific model specifications of the circuit breaker body 10 and the spring 242 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the circuit breaker body 10 and its principle will be clear to a person skilled in the art and will not be described in detail here.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A circuit breaker with a wire-off prevention mechanism is characterized by comprising

A circuit breaker body (10);

wiring subassembly (20), wiring subassembly (20) includes casing (210), moulding (220), pushes away crowded piece (230), bayonet lock spare (240), casing (210) with circuit breaker body (10) fixed connection, run through on casing (210) and seted up the wiring hole, moulding (220) includes conducting strip (221) and shell fragment (222), conducting strip (221) is provided with two, two conducting strip (221) all with circuit breaker body (10) electricity is connected, two conducting strip (221) all with casing (210) inner wall swing joint, one of them conducting strip (221) with push away crowded piece (230) fixed connection, another conducting strip (221) support tightly in shell fragment (222), shell fragment (222) another side support tightly in casing (210) inner wall, push away crowded piece (230) with casing (210) fixed connection, the clamping pin piece (240) is fixedly connected with the shell (210), and the clamping pin piece (240) is movably connected with the pushing piece (230).

2. The circuit breaker with the wire-off prevention mechanism according to claim 1, wherein the inner wall of the housing (210) is provided with a groove adapted to the corresponding conductive sheet (221), and the elastic sheet (222) and the corresponding conductive sheet (221) are both disposed in the groove.

3. The circuit breaker with the wire-dropping prevention mechanism according to claim 1, wherein the plastic part (220) further comprises two limiting strips (223), the two limiting strips (223) are fixedly connected with the inner wall of the shell (210), and the two limiting strips (223) are movably attached to two ends of the corresponding conducting strip (221) respectively.

4. The circuit breaker with a wire-drop prevention mechanism according to claim 1, wherein the pushing member (230) comprises a rocker arm (231), a push rod (232), a link i (233), a link ii (234), and a slider (235).

5. The circuit breaker with the wire-off prevention mechanism according to claim 4, wherein one end of the rocker arm (231) is hinged with the outer wall of the housing (210), one end of the push rod (232) is hinged with the rocker arm (231), and a through hole corresponding to the wire connection hole is formed in the rocker arm (231) in a penetrating manner.

6. The circuit breaker with a wire-escape preventing mechanism according to claim 5, wherein one end of the link I (233) is hinged to one end of the link II (234) and the other end of the push rod (232).

7. The circuit breaker with a line-disconnection preventing mechanism according to claim 6, wherein the other end of the link i (233) is hinged to the inner wall of the housing (210), and the other end of the link ii (234) is hinged to the slider (235).

8. The circuit breaker with a wire-drop preventing mechanism according to claim 7, wherein the sliding blocks (235) are fixedly connected with the corresponding conducting strips (221), and the sliding blocks (235) are slidably connected with the inner wall of the shell (210).

9. The circuit breaker with the wire-drop preventing mechanism according to claim 5, wherein the latch member (240) comprises a latch tongue (241) and a spring (242), the latch tongue (241) and the spring (242) are movably embedded in the side wall of the housing (210), one end of the spring (242) abuts against the housing (210), and the other end of the spring (242) abuts against the latch tongue (241).

10. The circuit breaker with the wire-off prevention mechanism according to claim 9, wherein a pin hole matched with the pin tongue (241) is formed in the rocker arm (231) in a penetrating manner, and the pin tongue (241) is movably clamped to the rocker arm (231) through the pin hole.

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