CN219800760U

CN219800760U - Circuit breaker with safety lock

Info

Publication number: CN219800760U
Application number: CN202321214884.1U
Authority: CN
Inventors: 肖正
Original assignee: Changzhou Bodian Zhida Technology Co ltd
Current assignee: Changzhou Bodian Zhida Technology Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-10-03
Anticipated expiration: 2033-05-18

Abstract

The utility model discloses a circuit breaker with a safety lock, and relates to the technical field of circuit breaker safety. According to the utility model, when the opening and closing operation handle automatically trips, the movable core can be driven to rotate in the movable seat through the connecting rod, when the positioning round head position is overlapped with the positioning hole position in the rotating process, the positioning round head can be ejected out through the resilience force of the telescopic spring behind the positioning round head, so that the locking of the opening and closing operation handle is completed, when the user finishes the operation, the opening and closing operation handle can be pushed up after the positioning round head is pressed down, and the safety of the safety lock structure of the device is improved, and the safety lock structure is convenient to open and close while avoiding false contact.

Description

Circuit breaker with safety lock

Technical Field

The utility model relates to the technical field of breaker safety, in particular to a breaker with a safety lock.

Background

The circuit breaker generally comprises a contact system, an arc extinguishing system, an operating mechanism, a shell and the like, when short circuit occurs, a magnetic field generated by large current (generally 10 to 12 times) overcomes a counter-force spring, and a release pulls the operating mechanism to act, so that the switch is tripped instantaneously. When overload occurs, the current increases, the heating value increases, and the bimetal deforms to a certain extent to push the mechanism to operate (the larger the current is, the shorter the operation time is).

When the circuit is overhauled, the danger of electric shock of electricians can be caused if the circuit breaker is opened by mistake. Currently, the western european countries and the victoria states in australia have mandatory requirements in this respect: after the installation of the electrical engineering project, the circuit breaker must be in a locked state before being approved by the safety department. The circuit is also ensured to be locked when overhauling. Currently, protection against unauthorized opening and closing of circuit breakers is achieved by a protective case (switch case) with a lock, in which case the circuit breaker or circuit breakers are housed, and the protection against unauthorized operation can be controlled by locking the protective case. However, the protection box cannot be used for independently managing each circuit breaker, and in some cases, the protection box is not installed well, and the cost for installing the protection box is high and the installation is complicated. In real life, not all the protection boxes have locking functions, and many of the finished electrical projects are not provided with the protection boxes.

Such as the patent: the utility model provides a circuit breaker with safety lock (publication number: CN 205069529U), includes the body and locates the branch on the body and close operating handle, be equipped with locking mechanism between branch and the body, including the horizontal slip connect in the slip portion of body, locate this slip portion and be located the locking portion of branch on closing operating handle below, still be equipped with the locking fixed part that will be fixed in on the body between this slip portion and the body, locking portion is including being fixed in the unidirectional gear on the slip portion, and this unidirectional gear cover is equipped with unidirectional rotation sleeve, is equipped with in the interior section of thick bamboo wall of this unidirectional rotation sleeve with this unidirectional gear matched with the check tooth, and the urceolus wall is equipped with the fender leaf that evenly interval set up, can receive locking mechanism's effect when branch closes the operating handle separating brake, can't dial the closing a floodgate upwards before not touching the locking fixed part, has prevented when electrical apparatus maintenance personnel carries out maintenance operation, other personnel will divide and close operating handle board because of the maloperation, takes place the danger of electric shock.

The existing circuit breaker with the safety lock locks the locking structure through a padlock locking mode, and the mode is inconvenient to operate in an environment with limited use space and inconvenient to unlock subsequently. Therefore, it is necessary to invent a circuit breaker with a safety lock to solve the above problems.

Disclosure of Invention

The utility model aims to provide a circuit breaker with a safety lock, so as to solve the problem that the safety lock structure is inconvenient to open and close in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a circuit breaker with safety lock, includes the circuit breaker main part, one side of circuit breaker main part is provided with the safety lock main part, the installation spout has been seted up to one side of circuit breaker main part, one side of circuit breaker main part is provided with the branch and closes operating handle, the outside of branch and closing operating handle is provided with the insulation board, one side of insulation board is provided with the connecting rod, one side of safety lock main part is provided with the movable seat, one side of safety lock main part is provided with multiunit installation screw rod, multiunit installation screw rod is linear distribution in one side of safety lock main part, the inside of movable seat is provided with the movable core, the change groove has been seted up in the outside of movable seat, the outside of movable core is provided with the location button head.

Preferably, two groups of anti-slip strips are arranged on the outer side of the insulating plate, and the two groups of anti-slip strips are symmetrically distributed on the outer side of the insulating plate.

Preferably, a plurality of groups of threaded holes are formed in one side of the safety lock body, and the plurality of groups of threaded holes are linearly distributed in one side of the safety lock body.

Preferably, a plurality of groups of balls are arranged on the outer side of the movable core, the balls are distributed circularly on the outer side of the movable core, and a limiting groove is formed in the outer side of the movable core.

Preferably, a connecting block is arranged on the outer side of the movable core.

Preferably, a telescopic spring is arranged in the positioning round head, and a movable groove is formed in the outer side of the movable core.

Preferably, a positioning hole is formed in the outer side of the movable seat.

The utility model has the technical effects and advantages that:

1. the device uses the safety lock body, the connecting rod, the movable seat, the movable core, the rotary groove, the ball, the limit groove, the connecting block, the positioning round head, the telescopic spring, the movable groove and the positioning hole, so that the movable core can be driven to rotate in the movable seat by the connecting rod when the opening and closing operation handle of the device automatically trips, the positioning round head can be ejected out by the resilience force of the telescopic spring behind the positioning round head when the positioning round head is overlapped with the positioning hole in the rotating process, thereby completing the locking of the opening and closing operation handle, the opening and closing operation handle can be pushed up after the positioning round head is pressed down when the operation of a user is completed, further improving the safety of the device, avoiding the false contact and simultaneously being convenient for opening and closing, and saving a large amount of time cost for the user;

2. the device has used circuit breaker main part, safety lock main part, installation spout, installation screw rod and screw hole to make the device accessible installation spout carry out preliminary fixed to circuit breaker main part and safety lock main part, and further install fixedly through the threaded connection of installation screw rod and screw hole, the fixed effect of this mounting means is firm is convenient for follow-up dismantlement operation of changing the maintenance in the time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a circuit breaker with a safety lock according to the present utility model.

Fig. 2 is a schematic side view of a circuit breaker with a safety lock according to the present utility model.

Fig. 3 is a schematic diagram of a split structure of a safety lock body of a circuit breaker with a safety lock according to the present utility model.

Fig. 4 is an enlarged schematic view of fig. 3A.

In the figure: 1. a breaker main body; 2. a safety lock body; 3. installing a chute; 4. a split-close operation handle; 5. an insulating plate; 6. an anti-slip strip; 7. a connecting rod; 8. a movable seat; 9. installing a screw; 10. a threaded hole; 11. a movable core; 12. a rotary groove; 13. a ball; 14. a limit groove; 15. a connecting block; 16. positioning the round head; 17. a telescopic spring; 18. a movable groove; 19. and positioning holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Thus, the following detailed description of the embodiments of the utility model, as 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 made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model provides a circuit breaker with a safety lock as shown in fig. 1-4, which comprises a circuit breaker main body 1, wherein one side of the circuit breaker main body 1 is provided with a safety lock main body 2, one side of the circuit breaker main body 1 is provided with a plurality of groups of mounting screw rods 3, wherein the mounting screw rods 3 can be in linear distribution with a mounted plate, so that the subsequent fixing of a threaded structure is facilitated, one side of the circuit breaker main body 1 is provided with a split operation handle 4, the outer side of the split operation handle 4 is provided with an insulating plate 5, the insulating plate 5 avoids the condition that a user gets into contact with the split operation handle 4 and gets into an electric shock, one side of the insulating plate 5 is provided with a connecting rod 7, the connecting rod 7 can connect the split operation handle 4 with a movable core 11, one side of the safety lock main body 2 is provided with a movable seat 8, one side of the safety lock main body 2 is provided with a plurality of groups of mounting screw rods 9, the plurality of groups of mounting screw rods 9 are arranged on one side of the safety lock main body 2 in a linear distribution mode, the inner side of the movable seat 8 is provided with a movable core 11, the movable core 11 can rotate in the movable seat 8, the outer side of the movable seat 8 is provided with a rotary seat 12, the outer side of the movable seat 8 is provided with a rotary core 11, the rotary seat 12 is contacted with the movable core 11, and the outer side of the movable seat is provided with a rotary seat 12 is provided with a positioning round head 16, and the safety lock main body 16 is provided with a positioning part.

The outside of insulation board 5 is provided with two sets of antislip strips 6, and two sets of antislip strips 6 are symmetrical distribution in the outside of insulation board 5, and wherein two sets of antislip strips 6 are the rubber material, and this material is insulating material to the frictional force that has increased the deciliter operating handle 4 when can avoid the user to contact the electric shock, the condition of avoiding skidding.

The multiunit screw hole 10 has been seted up to one side of safety lock body 2, and multiunit screw hole 10 is linear distribution in one side of safety lock body 2, and wherein multiunit screw hole 10 can carry out threaded connection with multiunit installation screw 9 to realized the installation to safety lock body 2, be convenient for follow-up maintenance dismantlement when this mounting means is fixed effect firm.

The outside of activity core 11 is provided with multiunit ball 13, and multiunit ball 13 is circular distribution in the outside of activity core 11, and limit groove 14 has been seted up to the outside of activity core 11, and wherein multiunit ball 13's use has increased activity core 11 at the sensitivity of activity seat 8 internal rotation, and wherein limit groove 14 plays spacing effect to multiunit ball 13, avoids long-term use to lead to ball 13 position to take place the skew further to lead to the inside dead condition of card of activity seat 8.

The outside of activity core 11 is provided with connecting block 15, and wherein connecting block 15 makes activity core 11 can be connected with deciliter operating handle 4, further makes activity core 11 can with deciliter operating handle 4 synchronous drive, and then has realized the drive to activity core 11 when tripping operation.

The inside of location button head 16 is provided with telescopic spring 17, and movable groove 18 has been seted up to the outside of movable core 11, and wherein telescopic spring 17's use can provide flexible effect for location button head 16 to further realize the function that the automation of location button head 16 pops out, wherein the movable groove 18 plays spacing effect to telescopic spring 17 when providing accommodation effect to location button head 16.

The outside of the movable seat 8 is provided with a positioning hole 19, wherein when the positioning hole 19 is arranged at the position of the positioning round head 16 and is overlapped with the positioning hole 19, the pressure born by the telescopic spring 17 behind the positioning round head 16 is eliminated, so that the positioning round head 16 can be pushed to pop out of the positioning hole 19 through the resilience force of the positioning round head, and the automatic locking function of the safety lock main body 2 is realized.

Working principle: this circuit breaker with safety lock passes through circuit breaker main part 1, the user is through installing spout 3 and by the grafting of mounting panel to circuit breaker main part 1 and safety lock main part 2 preliminary fixed, and through mounting screw 9 with circuit breaker main part 1 and safety lock main part 2 dress tight, and connect the circuit can, in the use, when the circuit takes place short circuit overload, circuit breaker main part 1 will trip automatically, the operation handle 4 that opens and shuts will drive movable core 11 through connecting rod 7 and jump down in movable seat 8 internal rotation, in the rotation process, when the location button 16 position on movable core 11 and the locating hole 19 on movable seat 8 overlap, the pressure that the extension spring 17 at location button 16 rear receives disappears and drives location button 16 and pop out, thereby accomplish the locking to movable core 11, further lock to the operation handle 4 that divides, when the user overhauls and accomplish, with location button 16 press down, and upwards promote the operation handle 4 that divides, thereby realize the function that the safety lock structure of circuit breaker with safety lock is convenient.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. Circuit breaker with safety lock, including circuit breaker main part (1), its characterized in that: one side of circuit breaker main part (1) is provided with safe lock main part (2), installation spout (3) have been seted up to one side of circuit breaker main part (1), one side of circuit breaker main part (1) is provided with branch and closes operating handle (4), the outside of branch and closing operating handle (4) is provided with insulation board (5), one side of insulation board (5) is provided with connecting rod (7), one side of safe lock main part (2) is provided with movable seat (8), one side of safe lock main part (2) is provided with multiunit mounting screw (9), multiunit mounting screw (9) are linear distribution in one side of safe lock main part (2), the inside of movable seat (8) is provided with movable core (11), rotary groove (12) have been seted up in the outside of movable seat (8), the outside of movable core (11) is provided with location button head (16).

2. A circuit breaker with safety lock according to claim 1, characterized in that: two groups of anti-slip strips (6) are arranged on the outer side of the insulating plate (5), and the two groups of anti-slip strips (6) are symmetrically distributed on the outer side of the insulating plate (5).

3. A circuit breaker with safety lock according to claim 1, characterized in that: a plurality of groups of threaded holes (10) are formed in one side of the safety lock body (2), and the plurality of groups of threaded holes (10) are linearly distributed on one side of the safety lock body (2).

4. A circuit breaker with safety lock according to claim 1, characterized in that: the outer side of the movable core (11) is provided with a plurality of groups of balls (13), the balls (13) are circularly distributed on the outer side of the movable core (11), and the outer side of the movable core (11) is provided with a limiting groove (14).

5. A circuit breaker with safety lock according to claim 1, characterized in that: the outer side of the movable core (11) is provided with a connecting block (15).

6. A circuit breaker with safety lock according to claim 1, characterized in that: the inside of location button head (16) is provided with expansion spring (17), movable groove (18) have been seted up in the outside of activity core (11).

7. A circuit breaker with safety lock according to claim 1, characterized in that: the outside of the movable seat (8) is provided with a positioning hole (19).