阅读说明：本技术 断路器定位锁止结构及具有其的断路器 (Circuit breaker location locking structure and have its circuit breaker ) 是由 施宏伟 周泉淼 李一炜 刘福 黄杰 孙良权 胡媛 陈林生 于 2021-06-29 设计创作，主要内容包括：现有的断路器锁止结构单一,并不能满足于多样的断路器内部空间结构。为了解决上述问题,本发明采用了以下的技术方案：断路器定位锁止结构,包括壳体,把手,以及转动连接在壳体内的定位件,定位件一端设置有定位舌,另一端连接有能够将定位舌顶出壳体外的弹性复位件；定位件受到向前的外力时能够向前移动至挂台上；受到向后的外力时能够向后移动,移出挂台；定位件通过椭圆形销孔实现前后位移,通过外拉把手实现解锁。当定位件处于前位时,定位件前下方架设在挂台上,定位舌锁定；当定位件处于后位时,定位件处于挂台外,此时定位件能够向下转动,定位舌能够向下回缩。通过挂台的设置,本方案只需较少的空间就能实现断路器的锁定与解锁。(The existing circuit breaker locking structure is single and cannot meet the requirement of various circuit breaker internal space structures. In order to solve the problems, the invention adopts the following technical scheme: the circuit breaker positioning and locking structure comprises a shell, a handle and a positioning piece rotatably connected in the shell, wherein one end of the positioning piece is provided with a positioning tongue, and the other end of the positioning piece is connected with an elastic resetting piece capable of ejecting the positioning tongue out of the shell; the positioning piece can move forwards to the hanging table when being subjected to a forward external force; the hanging table can move backwards when being subjected to backward external force and is moved out of the hanging table; the positioning piece realizes front and back displacement through the oval pin hole, and realizes unlocking through an outer pull handle. When the positioning piece is in the front position, the front lower part of the positioning piece is erected on the hanging table, and the positioning tongue is locked; when the positioning piece is in the rear position, the positioning piece is positioned outside the hanging table, the positioning piece can rotate downwards at the moment, and the positioning tongue can retract downwards. Through the setting of hanging the platform, this scheme only needs less space just can realize the locking and the unblock of circuit breaker.)

1. The circuit breaker positioning and locking structure comprises a shell (1), a handle (6) extending out of the shell and a positioning piece (2) rotatably connected in the shell, wherein one end of the positioning piece (2) is provided with a positioning tongue, and the other end of the positioning piece is connected with an elastic resetting piece (3) capable of pushing the positioning tongue (21) out of the shell; the method is characterized in that: the positioning piece (2) can move forwards to the hanging table (4) when being subjected to a forward external force; the positioning piece (2) can move backwards when being subjected to backward external force and is moved out of the hanging table (4); setting element (2) rotate through locating pin (5) and connect in casing (1), setting element (2) are oval with connecting hole (22) of locating pin (5), the displacement of position around locating element (2) can take place for locating pin (5) relatively, handle (6) front end is provided with ascending first arch (61), setting element (2) rear end is equipped with downward second arch (24) downwards, when handle (6) pull open backward, first arch (61) offset with second arch (24), handle (6) can drive setting element (2) backward and move to locating pin (5) and the front side in oval hole offset through first arch (61).

2. The circuit breaker positioning and locking structure of claim 1, wherein: the front side of the handle (6) is connected with a limiting block (7), and when the handle (6) is closed forwards, the upper part of the limiting block (7) is abutted against the lower part of the positioning piece (2); when the handle (6) is pulled back, the limiting block (7) is released from the positioning piece (2).

3. The circuit breaker positioning and locking structure of claim 2, wherein: the handle is characterized in that a limiting bulge (23) is arranged below the positioning piece (2) in a protruding mode, and when the handle (6) is closed forwards, the limiting block (7) abuts against the limiting bulge (23).

4. The circuit breaker positioning and locking structure of claim 3, wherein: spacing arch (23) set up the side below of setting element (2), the rear end of stopper (7) is protruding to the homonymy of spacing arch (23) of setting element (2), when handle (6) forward closure, the rear end and the spacing arch (23) of stopper (7) offset.

5. The circuit breaker positioning and locking structure of claim 4, wherein: the limiting block (7) is an L-shaped connecting block, and the upper end of the L-shaped rear arm is rotatably connected with the handle (6).

6. The circuit breaker positioning and locking structure of claim 1, wherein: the abutting surfaces of the first bulges (61) and the second bulges (24) are inclined surfaces, and the end surfaces of the bulges are arc surfaces.

7. The circuit breaker positioning and locking structure of claim 1, wherein: the front side of the positioning tongue (21) is provided with a guide inclined plane, and the rear side is a right-angle surface.

8. A circuit breaker, characterized by: the circuit breaker comprises a circuit breaker positioning and locking structure of any one of claims 1-7.

Technical Field

The invention relates to the technical field of circuit breakers, in particular to a circuit breaker positioning and locking structure and a circuit breaker with the same.

Background

The existing circuit breaker locking structure is single and cannot meet various internal design structures of the circuit breaker, for example, a two-section type long strip-shaped circuit breaker bolt mechanism is disclosed in Chinese invention patent with the publication number of CN107833799A and the name of 'a fixing and unlocking mechanism of a plug-in circuit breaker'. The structure of the bolt mechanism is in a strip shape, and due to space limitation, the shell needs to be additionally arranged for the strip-shaped mechanism to protrude outwards. The arrangement mode causes waste to raw materials of the shell, and the traditional rectangular circuit breaker cannot be well adapted to the shape of the traditional rectangular circuit breaker.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a circuit breaker positioning and locking structure and a circuit breaker having the same.

In order to achieve the purpose, the invention adopts the following technical scheme:

the circuit breaker positioning and locking structure comprises a shell, a handle and a positioning piece, wherein the handle extends out of the shell, the positioning piece is rotatably connected in the shell, one end of the positioning piece is provided with a positioning tongue, and the other end of the positioning piece is connected with an elastic resetting piece which can push the positioning tongue out of the shell; the positioning piece can move forwards to the hanging table when being subjected to a forward external force; the positioning piece can move backwards when being subjected to backward external force and is moved out of the hanging table; the setting element passes through the locating pin and rotates to be connected in the casing, the connecting hole of setting element and locating pin is oval, the displacement of position around the setting element can take place for the locating pin relatively, the handle front end is provided with ascending first arch, the setting element rear end is equipped with a decurrent second arch downwards, and when the handle was pulled open backward, first arch (61) and the protruding counterbalance of second, the handle can drive the setting element rearward movement through first arch and offset to the front side in locating pin and oval hole.

A hanging table is arranged below the front portion of the positioning piece in the technical scheme, and the positioning piece can move back and forth. When the positioning piece is in the front position, the front lower part of the positioning piece is erected on the hanging table, and the positioning tongue cannot retract downwards; when the positioning piece is in the rear position, the positioning piece is positioned outside the hanging table, the positioning piece can rotate downwards at the moment, and the positioning tongue can retract downwards. When the circuit breaker is installed, the whole outer shell is inserted into the installation box, and the positioning tongue is stressed by a backward and downward force. At the moment, the positioning piece moves backwards, and the hanging table is moved out and retracts downwards. When the circuit breaker is pulled outwards again, the rear side of the positioning tongue is forced forwards, the positioning piece moves forwards and is placed on the hanging table, the positioning tongue is locked, downward retraction is not caused, and the circuit breaker is locked in the mounting box. Through the setting of hanging the platform, this scheme only needs less space just can realize the locking of circuit breaker.

The structure of the technical scheme adopts the form of the oval pin hole to realize the back and forth movement of the positioning piece, the positioning piece is pushed to move forwards by the stress when the positioning piece is inserted out to realize locking, and the positioning piece is pulled to move backwards by the handle to realize unlocking of the positioning piece.

Preferably, the front side of the handle is connected with a limiting block, and when the handle is closed forwards, the upper part of the limiting block is abutted against the lower part of the positioning piece; when the handle is pulled back, the limiting block is released from the positioning piece. The scheme is also provided with a second locking mode, namely closing locking. When the handle is closed, the front limiting block is pushed to abut against the lower part of the positioning piece, so that the positioning piece cannot retract downwards to realize locking.

Preferably, a limiting protrusion is arranged below the positioning piece in a protruding mode, and when the handle is closed forwards, the limiting block abuts against the limiting protrusion. Because the stopper links with the handle, if the volume is great then it is great to account for the space. Therefore, the lower side of the positioning piece is provided with the limiting protrusion, the movable range of the protrusion is limited, and the occupied space is small. Therefore, the limit block can still be abutted against the positioning piece when being arranged very small, and the space utilization rate is high.

Preferably, the limiting protrusion is arranged below the side of the positioning part, the rear end of the limiting block protrudes towards the same side of the limiting protrusion of the positioning part, and when the handle is closed forwards, the rear end of the limiting block abuts against the limiting protrusion. The limiting protrusions protrude out of the limiting blocks in the lateral direction, and space is further saved.

Preferably, the limiting block is an L-shaped connecting block, and the upper end of the L-shaped rear arm is rotatably connected with the handle.

Preferably, the abutting surfaces of the first protrusion and the second protrusion are inclined surfaces, and the end surfaces of the protrusions are arc surfaces. The end faces of the two bulges are arc faces, when the two bulges rub against each other, the first bulge on the handle can drive the positioning piece to move backwards and downwards along the arc face, and the circuit breaker can be directly pulled out.

Preferably, the front side of the positioning tongue is provided with a guide inclined plane, and the rear side of the positioning tongue is a right-angle surface. The front side of the positioning tongue is a guide inclined plane, so that the stress is decomposed into two component forces which are downward and backward when the circuit breaker is inserted, and the insertion process is smoother; the rear side is a right-angle surface, and when the breaker is pulled out, the rear side of the breaker forms a force pushing forward, so that the breaker is easy to lock.

A circuit breaker comprises any one of the circuit breaker positioning and locking structures.

In this scheme circuit breaker location locking structure include two kinds of locking modes: hanging table locking and handle limiting locking. Both of these locking modes can be unlocked by pulling out the handle. The design mode is compact in structure and can adapt to the limited space of the square box of the circuit breaker. In practical application, the two locking modes can be arranged on the circuit breaker independently or simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of a circuit breaker according to an embodiment of the invention;

fig. 2 is a cross-sectional view of a circuit breaker according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of an unlocked state of a circuit breaker latch structure when the circuit breaker latch structure is forced rearward in accordance with an embodiment of the present invention;

fig. 4 is a schematic view of an unlocked state when a positioning member of a circuit breaker locking structure is stressed backward in an embodiment of the present invention;

fig. 5 is a cross-sectional view of an unlocked state with a downward force applied to a circuit breaker latch configuration in accordance with an embodiment of the present invention;

fig. 6 is a schematic view of an unlocked state when a positioning member of a circuit breaker locking structure is stressed downward according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a circuit breaker latch according to an embodiment of the present invention in a locked state when the latch is forwardly biased;

fig. 8 is a schematic diagram illustrating a locking state of a positioning member of a circuit breaker locking structure when the positioning member is stressed forward according to an embodiment of the present invention;

fig. 9 is a cross-sectional view illustrating a closing and locking state of a circuit breaker locking structure according to an embodiment of the present invention;

fig. 10 is a cross-sectional view of an unlocked state of a circuit breaker locking structure in an embodiment of the present invention;

fig. 11 is a schematic view illustrating an unlocked state of a positioning member and a handle of a circuit breaker locking structure according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

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", "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 device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to 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, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified 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 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 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.

Example 1

As shown in fig. 1-3, a circuit breaker positioning locking structure includes a housing 1 and a positioning member 2 rotatably connected in the housing, wherein the positioning member 2 is rotatably connected in the housing 1 through a positioning pin 5, the positioning member 2 is elliptical with a connecting hole 22 of the positioning pin 5, and the positioning member 2 can displace relative to the positioning pin 5 in the front and back positions. The positioning piece 2 can move forwards to the hanging table 4 when being subjected to a forward external force; the positioning part 2 can move backwards when being subjected to backward external force and is moved out of the hanging table 4. One end of the positioning piece 2 is provided with a positioning tongue, and the other end of the positioning piece is connected with a spring which can push the positioning tongue 21 out of the shell;

as shown in fig. 2 to 11, the circuit breaker positioning and locking structure in this embodiment further includes a handle 6 extending out of the housing, a limiting block 7 is connected to a front side of the handle 6, and when the handle 6 is closed forward, an upper portion of the limiting block 7 abuts against a lower portion of the positioning member 2; the limiting block 7 is an L-shaped connecting block, and the upper end of the L-shaped rear arm is rotatably connected with the handle 6. When the handle 6 is pulled back, the limiting block 7 is released from the positioning piece 2. A limiting bulge 23 is arranged below the positioning piece 2 in a protruding mode, and when the handle 6 is closed forwards, the limiting block 7 abuts against the limiting bulge 23. The limiting protrusion 23 is arranged below the side of the positioning part 2, the rear end of the limiting block 7 protrudes towards the same side of the limiting protrusion 23 of the positioning part 2, and when the handle 6 is closed forwards, the rear end of the limiting block 7 is abutted against the limiting protrusion 23.

The handle 6 front end is provided with ascending first arch 61, 2 rear ends of setting element are equipped with a decurrent second arch 24 downwards, and when handle 6 pulled open backward, first arch 61 offseted with the protruding 24 of second, handle 6 can drive setting element 2 backward through first arch 61 and remove to locating pin 5 and the front side in oval hole offseting. The abutting surfaces of the first protrusion 61 and the second protrusion 24 are inclined surfaces, and the end surfaces of the protrusions are arc surfaces. The front side of the positioning tongue 21 is provided with a guide inclined plane, and the rear side is a right-angle surface.

The circuit breaker positioning locking structure of the embodiment has two locking modes. A hanging table is arranged at the front lower part of the positioning piece in the first type, and the positioning piece can move back and forth. When the positioning piece is in the front position, the front lower part of the positioning piece is erected on the hanging table, and the positioning tongue cannot retract downwards; when the positioning piece is in the rear position, the positioning piece is positioned outside the hanging table, the positioning piece can rotate downwards at the moment, and the positioning tongue can retract downwards. When the circuit breaker is installed, the whole outer shell is inserted into the installation box, and the positioning tongue is stressed by a backward and downward force. At the moment, the positioning piece moves backwards, and the hanging table is moved out and retracts downwards. When the circuit breaker is pulled outwards again, the rear side of the positioning tongue is forced forwards, the positioning piece moves forwards and is placed on the hanging table, the positioning tongue is locked, downward retraction is not caused, and the circuit breaker is locked in the mounting box. Through the setting of hanging the platform, this scheme only needs less space just can realize the locking of circuit breaker. The connecting hole is oval, so that the positioning piece can rotate and can move back and forth.

The scheme is also provided with a second locking mode, namely closing locking. When the handle is closed, the front limiting block is pushed to abut against the lower part of the positioning piece, so that the positioning piece cannot retract downwards to realize locking. Because the stopper links with the handle, if the volume is great then it is great to account for the space. Therefore, the lower side of the positioning piece is provided with the limiting protrusion, the movable range of the protrusion is limited, and the occupied space is small. Therefore, the limit block can still be abutted against the positioning piece when being arranged very small, and the space utilization rate is high. The limiting protrusions protrude out of the limiting blocks in the lateral direction, and space is further saved. The limiting block is an L-shaped connecting block, and the upper end of the L-shaped rear arm is rotatably connected with the handle. The L-shaped structure is compact and occupies small space.

When the lock is unlocked, the bulge of the handle can drive the positioning piece to move backwards. Therefore, when the handle is pulled backwards, the positioning piece can be pulled down from the hanging table to unlock. Meanwhile, when the handle is pulled backwards, the limiting block and the limiting bulge are also released to be abutted, and the locking is released. The end faces of the two bulges are arc faces, when the two bulges rub against each other, the first bulge on the handle can drive the positioning piece to move backwards and downwards along the arc face, and the circuit breaker can be directly pulled out.

The front side of the positioning tongue is a guide inclined plane, so that the stress is decomposed into two component forces which are downward and backward when the circuit breaker is inserted, and the insertion process is smoother; the rear side is a right-angle surface, and when the breaker is pulled out, the rear side of the breaker forms a force pushing forward, so that the breaker is easy to lock.

In this scheme circuit breaker location locking structure include two kinds of locking modes: hanging table locking and handle limiting locking. Both of these locking modes can be unlocked by pulling out the handle. The design mode is compact in structure and can adapt to the limited space of the square box of the circuit breaker. In practical application, the two locking modes can be arranged on the circuit breaker independently or simultaneously.

Example 2

A circuit breaker comprises any one of the circuit breaker positioning and locking structures.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.