CN216084764U - Circuit breaker with handle locking function - Google Patents

Abstract

The utility model provides a circuit breaker with a handle locking function, which belongs to the field of locking devices. Wherein, set up mounting hole and handle hole on the casing, handle components includes movable base, handle and snap ring, the snap ring sets up on the handle, locking components includes the supporting seat, first lock shell, the second lock shell, the locking piece, the elastic component, first Z type pole and second Z type pole, first lock shell, locking piece and elastic component are two, the installation cavity is seted up to two first lock shell correspondences, the one end of elastic component sets up in the bottom of installation cavity, the other end sets up the locking piece, two locking pieces, two first lock shells and second lock shell enclose into the closure space, the snap ring activity sets up in the closure space, through the setting of this structure, can lock the handle under the state of opening, closing, the maloperation to the handle switch has effectively been prevented, the practicality of circuit breaker has been strengthened.

Description

Circuit breaker with handle locking function

Technical Field

The utility model relates to the field of locking devices, in particular to a circuit breaker with a handle locking function.

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 for a predetermined time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current.

At present, for the convenience of concentrating management and control electric circuit, generally with a plurality of circuit breaker aggregate erection in electric box, because the handle of circuit breaker is in the coplanar among the circuit breaker integrated configuration, the handle interval of adjacent circuit breaker is very close, and current circuit breaker mostly can not lock the handle under the state of switching on, closing, just when pulling the handle of one of them circuit breaker easily, the handle of adjacent circuit breaker is moved by mistake, influences electric circuit's operation.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a circuit breaker with a handle locking function, and aims to solve the problems that a handle cannot be locked in a switch state and is easy to malfunction.

The embodiment of the utility model provides a circuit breaker with a handle locking function.

Wherein, the shell is provided with a mounting hole and a handle hole.

The handle assembly comprises a movable base, a handle and a lock catch ring, the movable base is arranged in the handle hole, the handle is fixedly arranged at the upper end of the movable base and extends out of the handle hole, and the lock catch ring is arranged on the handle.

The locking assembly comprises a supporting seat, a first lock shell, a second lock shell, two locking blocks, an elastic piece, a first Z-shaped rod and a second Z-shaped rod, wherein the supporting seat is arranged on the shell, the number of the first lock shell, the number of the locking blocks and the number of the elastic piece are two, the two first lock shells are correspondingly arranged at two ends of the second lock shell, the two first lock shells and the second lock shell are respectively arranged on the supporting seat, the two first lock shells are correspondingly provided with an installation cavity, one end of the elastic piece is arranged at the bottom of the installation cavity, the other end of the elastic piece is provided with the locking block, the two locking blocks, the two first lock shells and the second lock shell are enclosed to form a locking space, a locking ring can be movably arranged in the locking space, a first through hole is respectively arranged between the two first lock shells and the second lock shell, a second through hole is arranged on one side of the second lock shell far away from the first lock shell, one ends of the first Z-shaped rod and the second Z-shaped rod are respectively connected with the two locking blocks, the other ends of the first Z-shaped rod and the second Z-shaped rod extend to the outside of the second lock shell through hole, and a third through hole is formed in the middle of the first Z-shaped rod, and the second Z-shaped rod penetrates through the third through hole.

In this embodiment, set up mounting hole and handle hole on the casing, handle components includes movable base, handle and snap ring, the snap ring sets up on the handle, locking components includes the supporting seat, first lock shell, the second lock shell, the locking piece, the elastic component, first Z type pole and second Z type pole, first lock shell, locking piece and elastic component are two, two first lock shell correspondences set up the installation cavity, the one end of elastic component sets up in the bottom of installation cavity, the other end sets up the locking piece, two locking pieces, two first lock shells and second lock shell enclose into the closure space, the snap ring activity sets up in the closure space, through the setting of this structure, can lock the handle under the state of opening, closing, effectively prevented the maloperation to handle switch, the practicality of circuit breaker has been strengthened.

In one embodiment of the utility model, the number of the lock catch rings is two, and the lock catch rings are correspondingly arranged at two ends of the handle in the opening and closing direction, and the number of the locking assemblies is two.

In this embodiment, set up the hasp ring into two, and correspond and set up in the both ends of handle opening and shutting direction, the locking Assembly is two, and this just can make the handle all can realize the locking in the state of opening or closing, has further prevented the maloperation of handle.

In one embodiment of the utility model, the locking block is provided with a guide block, the side surface of the mounting cavity is provided with a guide groove, and the guide block is arranged in the guide groove in a sliding manner.

In this embodiment, the guide block is arranged on the locking block, the guide groove is formed in the side face of the mounting cavity, and the guide block slides in the guide groove, so that the guide effect can be achieved for the movement of the locking block in the mounting cavity, and the opening and closing of the two opposite locking blocks are more stable.

In one embodiment of the present invention, the side of each of the two locking pieces close to the handle is provided with a first arc-shaped surface.

In this embodiment, one side of the two locking blocks close to the handle is set as a first arc-shaped surface, so that the locking ring pushes the locking blocks at two sides away, and the locking ring is easier to enter a locking space.

In one embodiment of the utility model, the side of the two first lock shells close to the handle is provided with a second arc-shaped surface.

In this embodiment, one side of the two first lock cases close to the handle is set to be a second arc-shaped surface, so that the handle is not easy to block when contacting with the two first lock cases, and the locking is easier.

In one embodiment of the utility model, the cross-section of the mounting cavity is the same size as the cross-section of the locking piece.

In this embodiment, the cross section of installation cavity and the cross section of locking piece set up to the size the same, and like this, the activity of locking piece in the installation cavity can be gone on along installation cavity length direction's orbit, and the motion is stable, difficult emergence skew.

In one embodiment of the utility model, the first and second Z-shaped bars are provided with a hand grip at each end outside the second lock housing.

In this embodiment, the one end that lies in the second lock shell with first Z type pole and second Z type pole all is provided with the hand and holds between the fingers the portion for when needing to open two locking pieces, relative the kneading of hand is more convenient.

In one embodiment of the present invention, the two hand-held portions have anti-slip lines.

In this embodiment, with having seted up anti-skidding line on two hand nipping portions, increased the frictional force of hand and hand nipping portion for when operating hand nipping portion, it is easier to open the locking piece.

In one embodiment of the utility model the third through hole of the first Z-bar is arranged in the second lock housing.

In this embodiment, the third through hole of the first Z-shaped rod is arranged in the second lock case, so that only the hand-pinching part is exposed outside the second lock case, and the overall aesthetic property of the locking assembly is improved.

In one embodiment of the utility model, two mounting holes are provided, and the two mounting holes are respectively arranged at two ends of the shell.

In this embodiment, set up the mounting hole into two, two mounting holes are seted up respectively in the both ends of casing, can be more firm to the fixed of casing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a circuit breaker with a handle locking function according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a locking assembly in an abutting relationship with a locking block according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a locking assembly according to an embodiment of the present invention with the locking pieces separated;

fig. 4 is an assembly schematic diagram of a circuit breaker with a handle locking function according to an embodiment of the present invention.

Icon: 10-circuit breaker with handle locking function; 100-a housing; 110-mounting holes; 130-handle hole; 300-a handle assembly; 310-a movable base; 330-a handle; 350-a shackle; 500-a locking assembly; 510-a support base; 520-a first lock housing; 521-an installation cavity; 5211-a guide groove; 523-a second arc-shaped face; 530-a second lock housing; 531-second via; 540-locking block; 541-a guide block; 543-a first arc face; 550-an elastic member; 560-first Z-bar; 561-third through holes; 570-a second Z-bar; 571-pinching part by hand; 5711-anti-skid lines; 580-a locking space; 590-first via.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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: 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 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.

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 invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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.

Examples

Referring to fig. 1, the present invention provides a circuit breaker 10 with a handle locking function, which includes a housing 100, a handle assembly 300 and a locking assembly 500.

Referring again to fig. 1, the housing 100 defines mounting holes 110 and a handle hole 130. it is understood that the mounting holes 110 defined in the housing 100 are adapted to receive fasteners for securing the housing to an electrical box. In a specific embodiment, there are two mounting holes 110, and the two mounting holes 110 are respectively opened at two ends of the casing 100, so that the casing 100 can be more stably fixed.

Referring to fig. 1, the handle assembly 300 includes a movable base 310, a handle 330 and a locking ring 350, wherein the movable base 310 is installed in the casing 100 at the handle hole 130, the handle 330 is fixedly installed at the upper end of the movable base 310 and extends out of the handle hole 130, specifically, the handle 330 can be welded on the movable base 310, and the locking ring 350 is installed on the handle 330.

Referring to fig. 2, the locking assembly 500 includes a supporting base 510, a first lock case 520, a second lock case 530, two locking pieces 540, an elastic member 550, a first Z-shaped rod 560 and a second Z-shaped rod 570, wherein the supporting base 510 is fixedly mounted on the housing 100, the first lock case 520, the locking pieces 540 and the elastic member 550 are two, the two first lock cases 520 are correspondingly mounted at two ends of the second lock case 530, the two first lock cases 520 and the second lock case 530 are fixedly mounted on the supporting base 510, the two first lock cases 520 are correspondingly provided with a mounting cavity 521, one end of the elastic member 550 is fixedly connected to the bottom of the mounting cavity 521, the other end of the elastic member is fixedly connected to the locking pieces 540, the two first lock cases 520 and the second lock case 530 enclose a locking space 580, the locking ring 350 is movably disposed in the locking space 580, a first through hole 590 is formed between the two first lock cases 520 and the second lock case 530, a second through hole 531 is formed at a side of the second lock case 530 far from the first lock case 520, one end of the first Z-shaped rod 560 and one end of the second Z-shaped rod 570 are respectively connected with the two locking blocks 540, the other end of the first Z-shaped rod 560 and the other end of the second Z-shaped rod 570 penetrate through the first through hole 590 and the second through hole 531 to extend out of the second lock case 530, the middle part of the first Z-shaped rod 560 is provided with a third through hole 561, and the second Z-shaped rod 570 penetrates through the third through hole 561.

That is, in a normal state where the elastic member 550 is not stressed, the two locking pieces 540 abut against each other, when the latch ring 350 moves towards between the two locking pieces 540, the two locking pieces 540 are pressed in opposite directions, the two elastic members 550 are compressed, please refer to fig. 3, so that the two locking pieces 540 are separated, in a specific embodiment, referring to fig. 2, one sides of the two locking pieces 540 close to the handle 330 are both provided with the first arc surfaces 543, so that the latch ring 350 is easier to push away the locking pieces 540 at both sides and enter the locking space 580. Then, the latch ring 350 enters the locking space 580, the two locking pieces 540 lose the compression of the latch ring 350, and the elastic member 550 makes the two locking pieces 540 move towards each other under the action of restoring force until the two locking pieces abut against each other, so that the latch ring 350 and the handle 330 fixedly connected with the latch ring 350 can be locked.

When it is desired to push the handle 330, the first Z-bar 560 and the second Z-bar 570 are forced toward each other at the ends thereof away from the locking pieces 540, so that the locking spaces 580 are opened and the handle 330 with the locking ring 350 can be moved away from the locking spaces 580 for pushing.

Referring to fig. 2, in an embodiment, a hand-gripping portion 571 is installed at each end of the first Z-shaped rod 560 and the second Z-shaped rod 570 outside the second lock case 530, so that when the two lock blocks 540 need to be opened, the hands can be relatively gripped more conveniently.

In this embodiment, in a specific embodiment, the anti-slip stripes 5711 are formed on the two hand nipping portions 571, so that the friction force between the hand and the hand nipping portions 571 is increased, and the lock block 540 is easier to open when the hand nipping portions 571 are operated.

In a specific embodiment, referring to fig. 1, two locking rings 350 are provided and are correspondingly installed at two ends of the handle 330 in the opening and closing direction, and two locking assemblies 500 are provided, so that the handle 330 can be locked in the opening or closing state, and the handle 330 is further prevented from being mistakenly operated.

Referring to fig. 2, in a specific embodiment, the lock block 540 is connected with a guide block 541, a guide groove 5211 is formed in the side surface of the mounting cavity 521, and the guide block 541 slides in the guide groove 5211, so that the movement of the lock block 540 in the mounting cavity 521 can be guided, and the opening and closing processes of the two opposite lock blocks 540 are more stable.

In another specific embodiment, the cross section of the mounting cavity 521 is set to be the same as the cross section of the locking piece 540, so that the locking piece 540 can move in the mounting cavity 521 along the track in the length direction of the mounting cavity 521, the movement is stable, and the deviation is not easy to occur.

Referring to fig. 2, in a specific embodiment, one side of the two first lock cases 520 close to the handle 330 is provided with a second arc-shaped surface 523, so that when the handle 330 contacts with the two first lock cases 520, blocking is not easy to occur, and locking is easier.

In a specific embodiment, the third through hole 561 of the first Z-shaped rod 560 is disposed in the second lock case 530, so that only the handle 571 is exposed outside the second lock case 530, thereby increasing the overall aesthetic appearance of the lock assembly 500.

Referring to fig. 4, an assembly diagram of the circuit breaker 10 with a handle locking function is shown, such that each adjacent handle 330 can be locked in an open or closed state, and the occurrence of malfunction on the adjacent handle 330 when the handle 330 is operated is avoided.

The utility model provides a breaker 10 with a handle locking function, which has the following specific use modes: firstly, a plurality of circuit breakers are adjacently assembled and installed in an electric box, a fastener penetrates through the installation hole 110 to be fixed, each handle 330 is pulled to be opened or closed according to the specific situation that each circuit breaker needs to be opened or closed, the two abutted locking blocks 540 are pressed by the locking ring 350, the two locking blocks 540 are separated, the locking ring 350 enters the locking space 580, the two locking blocks 540 restore to the abutted state, and the handle 330 is locked. When the circuit breaker needs to change the switching state, the two hand nipples 571 on the first Z-shaped rod 560 and the second Z-shaped rod 570 are forced to approach each other, so that the two locking blocks 540 move away from each other, the locking space 580 is opened, and the handle 330 with the locking ring 350 can move away from the locking space 580 for pushing.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A circuit breaker with handle locking function is characterized by comprising

The handle comprises a shell, wherein a mounting hole and a handle hole are formed in the shell;

the handle assembly comprises a movable base, a handle and a lock catch ring, the movable base is arranged in a handle hole, the handle is fixedly arranged at the upper end of the movable base and extends out of the handle hole, and the lock catch ring is arranged on the handle;

the locking assembly comprises a supporting seat, a first lock shell, a second lock shell, two locking blocks, an elastic piece, a first Z-shaped rod and a second Z-shaped rod, the supporting seat is arranged on the shell, the number of the first lock shell, the number of the locking blocks and the number of the elastic piece are two, the two first lock shells are correspondingly arranged at two ends of the second lock shell, the two first lock shells and the second lock shell are respectively arranged on the supporting seat, the two first lock shells are correspondingly provided with an installation cavity, one end of the elastic piece is arranged at the bottom of the installation cavity, the other end of the elastic piece is provided with the locking blocks, the two first lock shells and the second lock shell form a locking space in a surrounding mode, the locking ring can be movably arranged in the locking space, and first through holes are respectively arranged between the two first lock shells and the second lock shells, the first lock shell is provided with a first through hole, the first lock shell is provided with a second through hole, one end of the first Z-shaped rod is connected with the first through hole, the other end of the first Z-shaped rod is connected with the second through hole, the other end of the second Z-shaped rod penetrates through the first through hole, the second through hole extends to the outside of the second lock shell, the middle part of the first Z-shaped rod is provided with a third through hole, and the second Z-shaped rod penetrates through the third through hole.

2. The circuit breaker with handle locking function as claimed in claim 1, wherein the number of the latch rings is two, and the latch rings are correspondingly disposed at two ends of the handle in the opening and closing direction, and the number of the locking assemblies is two.

3. The circuit breaker with handle locking function according to claim 1, wherein the locking block has a guide block thereon, and a guide groove is formed on a side surface of the mounting cavity, and the guide block is slidably disposed in the guide groove.

4. The circuit breaker with handle locking function according to claim 1, wherein both sides of the two locking pieces close to the handle are provided as first arc-shaped surfaces.

5. The circuit breaker with handle lock function according to claim 1, wherein a side of the two first lock cases close to the handle is provided as a second arc-shaped face.

6. The circuit breaker with handle lock function as claimed in claim 1, wherein the cross section of the installation cavity is the same size as the cross section of the locking piece.

7. The circuit breaker with handle lock function as claimed in claim 1, wherein the first and second Z-shaped bars are provided with a hand grip at an end thereof located outside the second lock case.

8. The circuit breaker with handle locking function as claimed in claim 7, wherein the two hand-held portions are formed with anti-slip patterns.

9. The circuit breaker with handle lock function as recited in claim 1, wherein the third through hole of the first Z-shaped bar is disposed in the second lock case.

10. The circuit breaker with handle locking function according to claim 1, wherein there are two mounting holes, and the two mounting holes are respectively opened at both ends of the housing.

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