CN212365895U

CN212365895U - Fixing and unlocking mechanism of circuit breaker

Info

Publication number: CN212365895U
Application number: CN202021377391.6U
Authority: CN
Inventors: 孙斌朋; 王楚; 孙泽凯; 汪泰宇; 潘如新; 唐庭
Original assignee: Huanyu Group Zhejiang High Tech Co ltd
Current assignee: Huanyu Hi Tech Co.,Ltd.
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-01-15
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses a fixed and release mechanism of circuit breaker relates to the circuit breaker field, and it includes circuit breaker casing, button and locating part, locating part elasticity is articulated to be installed just be located in the circuit breaker casing the preceding top of button, the window has been seted up to circuit breaker casing upper surface, the locating part upper surface is equipped with and can passes the locking boss of window, the locking boss has and stretches out the window prevents that the circuit breaker from getting into the first state of rack and having the withdrawal prevent the second state that the button was combined floodgate in the window. The utility model has the advantages of the assembly reliability is good and job stabilization nature is good.

Description

Fixing and unlocking mechanism of circuit breaker

Technical Field

The utility model relates to a circuit breaker field, concretely relates to fixed and release mechanism of circuit breaker.

Background

The breaker is a switch capable of providing various protection functions, and can effectively improve the safety and reliability of electrical equipment and power lines. In order to meet the increasingly diversified demands of users, specification diversification and miniaturization of circuit breakers are a trend; 1. the existing circuit breaker can directly carry out wiring operation under the condition that the existing circuit breaker is not installed in place in a closing state, so that the reliable and stable work of the circuit breaker is not facilitated, and potential safety hazards also exist; 2. the existing circuit breaker has the risk of being pulled out by mistake in a power-on state after being installed in place, is not favorable for the reliable operation of the circuit breaker and electrical equipment, and has potential safety hazards.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of background art, the utility model provides a fixed and release mechanism of circuit breaker that assembly reliability is good and job stabilization nature is good.

The utility model discloses the technical scheme who adopts: the utility model provides a fixed and release mechanism of circuit breaker, its includes circuit breaker casing, button and locating part, locating part elasticity is articulated to be installed just be located in the circuit breaker casing the preceding top of button, the window has been seted up to circuit breaker casing upper surface, the locating part upper surface is equipped with and can passes the locking boss of window, the locking boss has and stretches out the window prevents that the circuit breaker from getting into the first state of rack and having the withdrawal prevent the second state that the button was closed a floodgate in the window.

The locating part is equipped with the axis of rotation, the rotatable installation of axis of rotation is in the circuit breaker casing, the locking boss is located the front side of axis of rotation.

The locating part lower surface is equipped with spacing boss, the front end of button is equipped with the contact boss, works as when the locating part withdraws the window spacing boss is located the dead ahead of contact boss.

The circuit breaker is characterized in that an elastic piece is arranged in the circuit breaker shell, one end of the elastic piece is fixed on the circuit breaker shell, and the other end of the elastic piece is fixed on the limiting piece and provides a pre-tightening force upwards extending out of the window for the limiting piece.

The upper surface of the contact boss is provided with an inclined plane used for avoiding the limiting part.

The circuit breaker casing is equipped with the unblock buckle at the position at locating part rear, unblock buckle front end inserts in the circuit breaker casing, and its rear end shows outside the circuit breaker casing, the unblock buckle is equipped with the conflict portion that extends to dead ahead, the upper surface of conflict portion front end is the slope, the rear end of locating part is the cambered surface, conflict portion have forward motion with the rear end contact of locating part drives along the slope the clockwise pivoted first state of locating part and the second state that breaks away from the locating part to the back motion.

The unblock buckle is equipped with and is located the elasticity location portion of conflict portion one side, be equipped with in the circuit breaker casing a plurality of with the constant head tank that elasticity location portion corresponds, the tip of elasticity location portion is the cambered surface.

The rear end of unblock buckle is equipped with the operation boss that is used for artifical promotion, the operation boss is higher than circuit breaker casing upper surface.

The unlocking buckle is provided with a first positioning surface facing the circuit breaker shell in the vertical direction, the circuit breaker shell is provided with a second positioning surface facing the first positioning surface, and the first positioning surface and the second positioning surface are obliquely arranged.

The elastic positioning parts are symmetrically arranged on two sides of the abutting parts.

The utility model has the advantages that: according to the technical scheme, the limiting piece is arranged to prevent the circuit breaker from being pulled out after being assembled in place; under the state that the circuit breaker is switched on, the limiting part is matched with the button in a blocking mode, the circuit breaker is prevented from being installed in place, and the miniature circuit breaker has the advantages of improving assembling reliability and working stability.

Drawings

Fig. 1 is the utility model discloses a fixing and unlocking mechanism's of circuit breaker structure schematic diagram.

Fig. 2 is a top view of the securing and unlatching mechanism of the circuit breaker.

Fig. 3 is a schematic structural view of the unlocking buckle.

Fig. 4 is a schematic structural diagram of the limiting member.

Fig. 5 is a schematic view of the circuit breaker securing and unlatching mechanism in an unlatched position.

Fig. 6 is a top view of the circuit breaker securing and unlatching mechanism in an unlatched position.

Fig. 7 is a schematic view of the circuit breaker securing and unlocking mechanism in a locked position and without closing.

Fig. 8 is a schematic diagram of a locking and closing structure of the locking and unlocking mechanism of the circuit breaker.

Fig. 9 is a schematic structural view of the button.

Detailed Description

The embodiments of the present invention will be further explained with reference to the accompanying drawings:

as shown in the figure, the fixing and unlocking mechanism of the circuit breaker comprises a circuit breaker shell 1, a button 2 and a limiting piece 3, wherein the limiting piece 3 is elastically and hingedly installed in the circuit breaker shell 1 and located above and in front of the button 2, a window 11 is formed in the upper surface of the circuit breaker shell 1, a locking boss 31 capable of penetrating through the window 11 is arranged on the upper surface of the limiting piece 3, and the locking boss 31 has a first state of extending out of the window 11 to prevent the circuit breaker from entering a cabinet and a second state of retracting into the window 11 to prevent the button 2 from being switched on; according to the technical scheme, the limiting piece is arranged to prevent the circuit breaker from being pulled out after being assembled in place; under the state that the circuit breaker is switched on, the limiting part is matched with the button in a blocking mode, the circuit breaker is prevented from being installed in place, and the miniature circuit breaker has the advantages of improving assembling reliability and working stability.

The front and upper parts mentioned in the present embodiment can refer to the position distribution in fig. 1, and the stopper is located in front of the button and above the button.

The limiting member 3 is provided with a rotating shaft 32, the rotating shaft 32 is rotatably installed in the circuit breaker housing 1, the locking boss 31 is located on the front side of the rotating shaft 32, the rotating shaft is rotatably arranged, when the limiting member is in a horizontal state, as shown in fig. 6, the locking boss penetrates through the window and is exposed outside the circuit breaker housing, when the limiting member rotates to an inclined state, as shown in fig. 4, the locking boss retracts into the window and is hidden inside the circuit breaker housing.

The lower surface of the limiting piece 3 is provided with a limiting boss 33, the front end of the button 2 is provided with a contact boss 21, when the limiting piece 3 retracts into the window 11, the limiting boss 33 is positioned right in front of the contact boss 21, and the limiting piece can block the advancing route of the button in this state to prevent the button from being switched on; when the limiting member extends out of the window, the forward path of the button is not blocked, the button can be switched on, and the structure of the torsion spring and the rotating shaft of the embodiment forms the aforementioned elastic hinge structure.

Be equipped with elastic component 4 in the circuit breaker casing 1, 4 one ends of elastic component are fixed on circuit breaker casing 1, and the other end is fixed on the locating part 3 and do locating part 3 provides the pretightning force that upwards stretches out window 11, the elastic component adopts the torsional spring, the torsional spring expansion end is pressed the lower surface of locating part provides an ascending pretightning force for the locating part.

The upper surface of the contact boss 21 is provided with an inclined surface 22 for avoiding the limiting member 3, and when the limiting member rotates downwards, the lower surface of the limiting member is inclined, so that in order to ensure that the limiting member is completely retracted into the window without interference, the embodiment adopts the way that the contact boss is processed with an inclined surface for avoiding;

in yet another embodiment, an avoiding groove for avoiding the contact boss is dug on the lower surface of the limiting piece, and the same technical effect can be achieved.

Breaker housing 1 is equipped with unblock buckle 5 at the position of locating part 3 rear, 5 front ends of unblock buckle insert in breaker housing 1, and its rear end shows outside breaker housing 1, unblock buckle 5 is equipped with the conflict portion 51 that extends to dead ahead, the upper surface of conflict portion 51 front end is the slope, the rear end of locating part 3 is the cambered surface, conflict portion 51 have forward motion with the rear end contact of locating part 3 drives along the slope the clockwise pivoted primary importance of locating part 3 and backward motion break away from the second state of locating part 3, when unblock buckle inwards on time, the limiting part is promoted to rotate, and the spacing boss of limiting part blocks the button, prevents the circuit breaker from closing a floodgate.

The unlocking buckle 5 is provided with an elastic positioning part 52 positioned on one side of the abutting part 51, a plurality of positioning grooves 12 corresponding to the elastic positioning part 52 are arranged in the breaker shell 1, the end part of the elastic positioning part 52 is a cambered surface, and the elastic positioning parts 52 are symmetrically arranged on two sides of the abutting part 51; the positioning groove in the embodiment is divided into two gears which respectively correspond to a pressing-in state and a pulling-out state of the unlocking buckle, when the unlocking buckle is pressed into the circuit breaker, the elastic positioning part crosses a slope by utilizing the elasticity of the plastic material of the elastic positioning part and enters the next positioning groove, the positioning groove counteracts the pre-tightening force from the limiting part and the elastic part, the abutting part overcomes the pre-tightening force of the elastic part to keep the limiting part in an inclined state, the button is blocked, and the circuit breaker is prevented from being switched on;

after the unlocking buckle is pulled out, the abutting part is separated from the limiting part, and the limiting part is reset by the elastic part.

The rear end of unblock buckle 5 is equipped with the operation boss 53 that is used for artifical promotion, operation boss 53 is higher than circuit breaker casing 1 upper surface, pushes away the operation boss through artifical the pressing.

The unlocking buckle 5 is provided with a first positioning surface 54 facing the circuit breaker shell 1 in the vertical direction, the circuit breaker shell 1 is provided with a second positioning surface 13 facing the first positioning surface 54, and the first positioning surface 54 and the second positioning surface 13 are arranged in an inclined mode.

When the circuit breaker is in an opening state, the limiting piece is propped against the shell under the action of the elastic piece, and the locking boss of the limiting piece is exposed outside the shell of the circuit breaker; the circuit breaker is pushed into the cabinet, the locking boss of the limiting part is pressed down by the cabinet, the circuit breaker is pushed into the cabinet, when the circuit breaker is pushed to the position, the locking boss of the limiting part is clamped in the through hole on the cabinet under the action of the elastic part, and when the circuit breaker is installed in the position, the button is pushed to switch on, and the circuit breaker can be switched on;

if the circuit breaker is not installed in place, the locking boss of the limiting part is pressed down by the cabinet, the limiting boss of the limiting part abuts against the button, and the button cannot be switched on.

When the circuit breaker is not inserted into the cabinet and is in a closing state, the limiting boss of the limiting piece is pressed on the contact boss of the button; the locking boss is exposed outside the window, and when the circuit breaker is pushed into the cabinet, the locking boss can play a role in blocking, so that the circuit breaker cannot be pushed into the cabinet.

When dismantling the circuit breaker, need inwards press the unblock buckle, at this moment the restriction piece rotates under the promotion of unblock buckle, locking boss withdrawal window, when the unblock buckle is blocked when unable forward pushing (i.e. when first locating surface and second locating surface contact), the spacing boss of restriction piece down rotates, the spacing boss of restriction piece keeps off in the direct ahead of button contact boss, the button just can't be closed a floodgate, at this moment can extract the rack with the circuit breaker.

When the circuit breaker needs to be installed again, a tool needs to be inserted into the middle of the unlocking buckle and the circuit breaker shell, the unlocking buckle is ejected out by the tool and is in a free state, and the horizontal direction of the unlocking buckle is limited by a positioning groove in the circuit breaker shell and cannot move backwards.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but 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" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims

1. A fixing and unlocking mechanism of a circuit breaker is characterized in that: it includes circuit breaker casing (1), button (2) and locating part (3), locating part (3) elasticity is articulated to be installed in circuit breaker casing (1) and be located the preceding top of button (2), window (11) have been seted up to circuit breaker casing (1) upper surface, locating part (3) upper surface is equipped with and can passes locking boss (31) of window (11), locking boss (31) have and stretch out window (11) prevent that the circuit breaker from getting into the first state of rack and have the withdrawal prevent in window (11) the second state that button (2) were closed a floodgate.

2. The circuit breaker securing and unlocking mechanism according to claim 1, wherein: the locating part (3) is equipped with axis of rotation (32), rotatable the installing of axis of rotation (32) in circuit breaker casing (1), locking boss (31) are located the front side of axis of rotation (32).

3. The circuit breaker securing and unlocking mechanism according to claim 1, wherein: the lower surface of the limiting part (3) is provided with a limiting boss (33), the front end of the button (2) is provided with a contact boss (21), and when the limiting part (3) retracts into the window (11), the limiting boss (33) is located right ahead of the contact boss (21).

4. The circuit breaker securing and unlocking mechanism according to claim 1, wherein: be equipped with elastic component (4) in circuit breaker casing (1), elastic component (4) one end is fixed on circuit breaker casing (1), and the other end is fixed on locating part (3) and for locating part (3) provide the pretightning force that upwards stretches out window (11).

5. The circuit breaker securing and unlocking mechanism according to claim 3, wherein: the upper surface of the contact boss (21) is provided with an inclined surface (22) used for avoiding the limiting part (3).

6. The circuit breaker securing and unlocking mechanism according to claim 1, wherein: breaker housing (1) is equipped with unblock buckle (5) in the position at locating part (3) rear, unblock buckle (5) front end inserts in breaker housing (1), and its rear end reveals outside breaker housing (1), unblock buckle (5) are equipped with conflict portion (51) that extend to dead ahead, the upper surface of conflict portion (51) front end is the ramp surface, the rear end of locating part (3) is the cambered surface, conflict portion (51) have forward motion with the rear end contact of locating part (3) drives along the ramp surface locating part (3) clockwise rotation's first state and backward motion break away from the second state of locating part (3).

7. The circuit breaker securing and unlocking mechanism according to claim 6, wherein: unblock buckle (5) are equipped with and are located elasticity location portion (52) of conflict portion (51) one side, be equipped with in circuit breaker casing (1) a plurality of with constant head tank (12) that elasticity location portion (52) correspond, the tip of elasticity location portion (52) is the cambered surface.

8. The circuit breaker securing and unlocking mechanism according to claim 6, wherein: the rear end of unblock buckle (5) is equipped with operation boss (53) that are used for artifical promotion, operation boss (53) are higher than circuit breaker casing (1) upper surface.

9. The circuit breaker securing and unlocking mechanism according to claim 6, wherein: unblock buckle (5) are equipped with first locating surface (54) towards circuit breaker casing (1) on vertical direction, circuit breaker casing (1) is equipped with second locating surface (13) just to first locating surface (54), first locating surface (54) all slope with second locating surface (13) and set up.

10. The circuit breaker securing and unlocking mechanism according to claim 7, wherein: the elastic positioning parts (52) are symmetrically arranged on two sides of the interference part (51).