CN111403207A

CN111403207A - Switch device

Info

Publication number: CN111403207A
Application number: CN202010366877.8A
Authority: CN
Inventors: 盛勇兵; 任昌宾; 张彦阳; 王斌; 刘时胜
Original assignee: Zhejiang Tengen Electric Co Ltd
Current assignee: Zhejiang Tengen Electric Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-07-10

Abstract

The invention provides a switch device which comprises a shell, a button structure and a limiting structure, wherein the button structure is installed on the shell, the limiting structure is suitable for locking the button structure on the shell or unlocking the button structure from the shell, the limiting structure comprises a limiting piece, the limiting piece is linearly arranged on the shell in a sliding penetrating mode and is suitable for switching between an unlocking state and a locking state, and the sliding direction of the limiting piece is intersected with the telescopic direction of the button structure. In a locking state, the limiting part blocks the telescopic path of the button structure to prevent the button structure from moving, when the limiting part slides to an unlocking state, the limiting part is separated from the telescopic path of the button structure to avoid the button structure, so that the button structure can perform telescopic movement, the limiting structure needs to be unlocked before the button structure is operated, and misoperation of the button structure can be effectively prevented; and the locating part slides and sets up, only need remove shorter distance can realize stopping and stepping down to the button structure, occupation space is little, and space utilization is high.

Description

Switch device

Technical Field

The invention relates to the technical field of switches, in particular to a switch device.

Background

Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their range of use. The low-voltage circuit breaker is also called an automatic switch, and is an electric appliance which not only has the function of a manual switch, but also can automatically perform voltage loss, undervoltage, overload and short-circuit protection.

The circuit breaker is divided into: the plug-in circuit breaker can effectively improve the safety of the use industry of electrical equipment and is widely applied, and in the layout of the traditional plug-in circuit breaker product at the installation position, an operating button is generally pressed to close the circuit breaker, the operating button of the circuit breaker rebounds to reset after the operating force is removed, and the circuit breaker is disconnected when the button is pressed again; in the traditional installation mode, the breaker can be switched on by pressing an operation button whether the breaker is installed in the cabinet or not; when the circuit breaker is inserted into the cabinet after the circuit breaker has been wired and closed, a small arc may be generated between the terminals of the circuit breaker and the bus bars, possibly compromising the safety of nearby equipment.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the potential safety hazard caused by live operation because the breaker in the prior art can be switched on before entering the assembly position of the cabinet.

To this end, the present invention provides a switching device, comprising:

the casing installs the button structure on the casing to and be suitable for the limit structure who locks and unblock the button structure, its characterized in that:

the limit structure comprises:

the limiting piece is arranged on the shell in a sliding penetrating mode and is suitable for switching between an unlocking state and a locking state; when in the locking state, a part of the limiting piece is positioned outside the shell;

the sliding direction of the limiting part is a linear direction and is intersected with the telescopic direction of the button structure

Limit structure still includes:

and the elastic resetting piece is arranged in the shell, is connected with the limiting piece and is suitable for providing elastic biasing force towards the outside of the shell for the limiting piece.

Further comprising:

the cover plate is buckled on the shell and forms an assembly space with the shell in an enclosing mode; the limiting piece is arranged at the joint of the cover plate and the shell.

The stopper includes:

a position limiting member body;

the stop part and the locking part are arranged on the limiting part body;

the blocking part is suitable for blocking on a moving path of the button structure in a locking state;

the locking portion is adapted to be located outside the housing in a locked state.

Further comprising:

the supporting seat is arranged at the edge of the shell; the limiting part is abutted against the supporting seat in a sliding mode. Further comprising:

the guide structure is arranged on the shell; the limiting piece is arranged on the guide structure in a sliding mode.

The guide structure includes:

at least two step surfaces which are oppositely and extended in the same direction; an installation space is defined between the two opposite step surfaces, and the limiting part is arranged in the installation space and is in sliding butt joint with the step surfaces.

The button structure includes:

a button body;

the stop piece is arranged on the button body and synchronously moves along with the button body; the stopper is adapted to abut on the blocking portion in the locked state.

The sliding direction of the limiting part is perpendicular to the telescopic direction of the button structure.

The switching device is a fuse or a circuit breaker.

The technical scheme of the invention has the following advantages:

1. the invention provides a switch device which comprises a shell, a button structure and a limiting structure, wherein the button structure is installed on the shell, the limiting structure is suitable for locking the button structure on the shell or unlocking the button structure from the shell, the limiting structure comprises a limiting piece, the limiting piece is arranged on the shell in a penetrating mode in a sliding mode and is suitable for switching between an unlocking state and a locking state, and the sliding direction of the limiting piece is intersected with the telescopic direction of the button structure. In a locking state, the limiting part blocks the telescopic path of the button structure to prevent the button structure from moving, when the limiting part slides to an unlocking state, the limiting part is separated from the telescopic path of the button structure to avoid the button structure, so that the button structure can perform telescopic movement, the limiting structure needs to be unlocked before the button structure is operated, and misoperation of the button structure can be effectively prevented; and the locating part slides and sets up, only need remove shorter distance can realize stopping and stepping down to the button structure, occupation space is little, and space utilization is high.

2. According to the switch device provided by the invention, the sliding direction of the limiting piece is perpendicular to the telescopic direction of the button structure, so that the moving distance of the limiting piece when the limiting piece blocks and avoids the button structure is shortest, and the occupied space of the limiting structure is fully reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a first schematic structural diagram of a switching device according to the present invention;

fig. 2 is a first schematic structural diagram of a limit structure in a switch device according to the present invention;

FIG. 3 is a schematic structural diagram of a support base of a switchgear according to the present invention;

FIG. 4 is a partial cross-sectional view of a switching device of the present invention;

FIG. 5 is a structural diagram of a switch device according to the present invention in a locked state;

FIG. 6 is a structural diagram of an unlocking state of the switch device according to the present invention;

FIG. 7 is a schematic view of a torsion spring mounting structure of a switchgear of the present invention;

fig. 8 is a second schematic structural view of a limiting structure in a switching device according to the present invention;

FIG. 9 is a second schematic structural diagram of a switch device according to the present invention;

FIG. 10 is a schematic view of an installation structure of a combination of a torsion spring and a compression spring in a switchgear according to the present invention;

FIG. 11 is a third schematic structural view of a switch device according to the present invention;

FIG. 12 is a schematic view of a stop member of the switchgear of the present invention;

fig. 13 is a third schematic structural diagram of a limit structure in the switch device of the present invention.

Description of reference numerals:

1-a shell; 11-a clamping hole; 111-a second step face;

21-a button body; 22-a first leg; 23-a second leg; 24-a guide groove;

3-a limiting structure; 31-a stopper body; 32-a barrier; 33-a locking portion; 34-a first stopper; 35-a limiting column; 36-a compression spring; 37-torsion spring; 38-a drive plate;

41-a first support plate; 42-a second support plate; 43-a third support plate; 431-a first step surface;

5-a stop; 51-a fixation rod; 52-a stop block; 53-a second stop block; 54-stabilizing block.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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, 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment provides a switch device, which comprises a housing 1, a button structure mounted on the housing 1, and a limiting structure 3 adapted to lock or unlock the button structure on or from the housing 1, wherein in the present embodiment, as shown in fig. 1, the button structure comprises a button body 21 and a first leg 22 and a second leg 23 extending from two sides of the button body 21, and the button body 21 is slidably disposed in the housing 1 by the first leg 22 and the second leg 23.

Limiting structure 3 includes locating part and elasticity piece that resets, as shown in fig. 2, the locating part includes locating part body 31, stop part 32, locking part 33 and first stopper 34, as shown in fig. 1, stop part 32 and locking part 33 are located the left and right sides of locating part body 31 respectively, locating part body 31 is hollow setting, in order to reduce its self quality, stop part 32 that is located the upper left end of locating part body 31 protrudes locating part body 31 and sets up, stop part 32 is gone up towards button structure one side and has spacing face, in this embodiment, stop part 32 wholly is the quadrangular type, one side outer wall of quadrangular forms spacing face, stop part 32 can be other shapes certainly, can be spacing to button structure under the locking condition can. The locking portion 33 located at the right lower end of the limiting member body 31 protrudes out of the limiting member body 31, as shown in fig. 1 or fig. 3, a clamping hole 11 corresponding to the locking portion 33 is formed in the housing 1, in the locking state, the locking portion 33 penetrates through the clamping hole 11 and is matched with the hole wall of the clamping hole 11 to form limiting, at this time, the blocking portion 32 blocks on a left-right telescopic path of the button structure, and the first leg 22 abuts against a left limiting surface of the blocking portion 32 to form limiting locking on the button structure. In this embodiment, the limiting member body 31, the blocking portion 32, the locking portion 33 and the first limiting member 34 are integrally formed.

As shown in fig. 3, a supporting seat is disposed in the housing 1 corresponding to the limiting structure 3, the supporting seat is integrally retracted into the housing 1 and spaced from the edge of the housing 1, an installation space of the limiting structure 3 is reserved, the limiting member body 31 is located on a side surface of the first limiting member 34 and slidably abuts against the supporting seat, a side surface facing away from the first limiting member 34 and slidably abuts against a cover plate (not shown in the figure) matched with the housing 1, the limiting structure 3 is limited in the front-rear direction, the cover plate is fastened to the housing and defines an assembly space with the housing, the limiting member is disposed at a joint of the cover plate and the housing, the assembly and disassembly are convenient and quick, the supporting seat includes a first supporting plate 41, a second supporting plate 42 and a third supporting plate 43, the first supporting plate 41 is an inverted L-shaped structure, the second supporting plate 42 is disposed on an opening side of the first supporting plate 41, the upper end of the second supporting plate is spaced from a horizontal portion of the first supporting plate 41, the third supporting plate 43 is disposed on a side of the second supporting plate 42, the third supporting plate 43 is disposed along a sliding direction of the limiting member, the sliding direction of the limiting structure, the limiting member 111, the limiting surface, the limiting member and the second supporting plate 111, the second supporting plate 111 can be disposed along a sliding direction, the sliding direction of the limiting structure, the limiting member, the sliding direction, the limiting structure, the limiting member can be set up-sliding direction, the limiting member, the limiting structure, the limiting member can be set up-sliding direction, the limiting structure, the sliding direction of the sliding direction, the sliding direction of the sliding direction.

The elastic reset member is a compression spring 36, as shown in fig. 2, the first limiting block 34 is provided with a limiting column 35, as shown in fig. 4, one end of the compression spring 36 is fixed on the horizontal portion of the first supporting plate 41, and one end of the compression spring is sleeved on the limiting column 35, and in a normal state, the limiting member is in a locking state under the elastic biasing force of the compression spring 36, that is, the locking portion 33 is inserted into the card hole 11, and the first leg 22 abuts against the limiting surface of the blocking portion 32.

As shown in fig. 7, the elastic restoring member may also be a torsion spring 37, the torsion spring 37 is disposed in the housing 1, one driving end of the torsion spring 37 extends into the guide slot from the opening between the first support plate 41 and the second support plate 42, the other driving end is fixed on the housing 1, and the limiting member is modified in adaptability, as shown in fig. 8, a driving plate 38 parallel to the second support plate 42 is disposed on the first limiting member 34 near the second support plate 42, as shown in fig. 9, the driving end of the torsion spring 37 abuts against the upper end surface of the driving plate 38, so as to apply an elastic biasing force to the limiting member, and the opening between the first support plate 41 and the second support plate 42 forms a driving space for the limiting member by the torsion spring 37. As shown in fig. 10, the elastic restoring element may also adopt a combination of a compression spring 36 and a torsion spring 37, and of course, the elastic restoring element may also adopt a spring plate, etc., as required.

The working process of the switch device is as follows:

taking the elastic restoring element as the compression spring 36 as an example, fig. 5 shows an initial position, the limiting structure 3 is in a locked state, and at this time, the button structure cannot be pushed to the right, and a driving force is applied to the locking portion 33 by an external force (for example, manual pushing) to slide the whole limiting structure 3 into the housing 1, at this time, the blocking portion 32 moves upward, and before the locking portion 33 retracts into the outer surface of the housing 1 or just retracts into the outer surface of the housing 1, the blocking portion 32 completely disengages from the first leg 22, and is in an unlocked state, as shown in fig. 6, at this time, the button structure can be pushed to the right. The external force is released to the locking part 33, the limiting structure 3 moves downwards under the action of the elastic biasing force of the elastic resetting piece, the locking part 33 is ejected out of the clamping hole 11, and the blocking part 32 returns to the initial position and abuts against the first support leg 22 to return to the locking state.

The sliding direction of the limiting part is intersected with the telescopic direction of the button structure. In a locking state, the limiting part blocks the telescopic path of the button structure to prevent the button structure from moving, when the limiting part slides to an unlocking state, the limiting part is separated from the telescopic path of the button structure to avoid the button structure, so that the button structure can perform telescopic movement, the limiting structure 3 needs to be unlocked before the button structure is operated, and misoperation on the button structure can be effectively prevented; and the locating part slides and sets up, only need remove shorter distance can realize stopping and stepping down to the button structure, occupation space is little, and space utilization is high.

Example 2

This embodiment provides a switch device, compared with the switch device in embodiment 1, the difference is that in this embodiment, as shown in fig. 11, the button structure includes a stop member 5 installed on the button body 21 between the first leg 22 and the second leg 23, as shown in fig. 12, the stop member 5 includes a fixed rod 51, a stabilizing block 54 and a stop block 52 arranged at both ends of the fixed rod 51, two second stop blocks 53 symmetrically arranged at both sides of the fixed rod 51 near the stop block 52, as shown in fig. 11, two guide grooves 24 are symmetrically arranged on the button body 21, the second stop blocks 53 are correspondingly arranged in the guide grooves 24, the stabilizing block 54 is a square weight and is fixed in the inner cavity of the button body 21, the stop block 52 is arranged obliquely upward, as shown in fig. 13, the limit structure 3 is adapted, the blocking portion 32 is arranged on the limit body 31 in an extending manner, so as to make it in the locked state, the blocking portion 32 abuts against the stopper 52, and in the unlocked state, the blocking portion 32 is disengaged from the stopper 52.

Example 3

The embodiment provides a switching device, the switching device is a fuse or a breaker, the structure in embodiment 1 or embodiment 2 is adopted, taking the breaker as an example, as shown in fig. 5 and fig. 6, the button structure is pressed to the right to be a closing direction of the breaker, and pulled to the left to be an opening direction of the breaker, in an initial state, the first leg 22 or the stop block 52 abuts against the left side wall surface of the blocking portion 32 to form a limit lock, the breaker is always in an opening state to prevent the breaker from being closed due to misoperation of the button structure before being installed into a cabinet (not shown in the figure), when the housing 1 of the breaker is moved to the right to be inserted into the cabinet, the outer wall surface of the housing 1 slides along the inner wall surface of the cabinet, one side of the locking portion 33 facing the cabinet is an inclined surface, when interacting with the cabinet body of the cabinet, a component force capable, the cabinet body pushes the limiting structure 3 to unlock and yield, the button structure is pushed rightwards to perform a closing action, at the moment, the first support leg 22 or the stop block 52 is positioned on a sliding path of the blocking part 32, and meanwhile, the limiting part is always positioned in the shell 1 and kept in an unlocking state under the action force of the cabinet body towards the interior of the shell 1 by the locking part 33; when the circuit breaker needs to be taken out of the cabinet, the button structure is pulled leftwards to perform opening, at this time, the first leg 22 or the stop block 52 is separated from the sliding path of the blocking part 32, the housing 1 is pulled out of the cabinet, when the locking part 33 is separated from the cabinet body, the locking part is ejected out of the clamping hole 11 under the action of the elastic reset piece and locked on the housing 1, at this time, the blocking part 32 returns to the initial position and is blocked on the path of the first leg 22 or the stop block 52 which moves in a stretching mode towards the closing direction, and limiting locking is formed.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A switching device, comprising:

casing (1), install the button structure on casing (1) to and be suitable for limit structure (3) to locking and unblock the button structure, its characterized in that:

the limit structure (3) comprises:

the limiting piece is arranged on the shell (1) in a sliding penetrating mode and is suitable for being switched between an unlocking state and a locking state; when in the locking state, a part of the limiting piece is positioned outside the shell (1);

the sliding direction of the limiting part is a linear direction and is intersected with the telescopic direction of the button structure.

2. A switching device according to claim 1, wherein the limit structure (3) further comprises:

the elastic resetting piece is arranged in the shell (1), is connected with the limiting piece and is suitable for providing elastic biasing force towards the outside of the shell (1) for the limiting piece.

3. The switching device according to claim 1, further comprising:

the cover plate is buckled on the shell (1) and forms an assembly space with the shell (1) in an enclosing mode; the limiting piece is arranged at the joint of the cover plate and the shell (1).

4. A switching device according to any one of claims 1-3, wherein the limiting member comprises:

a stopper body (31);

a stopper portion (32) and a locking portion (33) provided on the stopper body (31);

the blocking portion (32) is adapted to block on a movement path of the button structure in the locked state;

the locking portion (33) is adapted to be located outside the housing (1) in a locked state.

5. The switching device according to claim 4, further comprising:

the supporting seat is arranged at the edge of the shell (1); the limiting part is abutted against the supporting seat in a sliding mode.

6. The switching device according to claim 4, further comprising:

a guide structure arranged on the housing (1); the limiting piece is arranged on the guide structure in a sliding mode.

7. The switching device of claim 6, wherein the guide structure comprises:

8. The switching device of claim 4, wherein the button structure comprises:

a button body (21);

a stopper (5) provided on the button body (21) and moving synchronously with the button body (21); the stop (5) is adapted to abut on the blocking portion (32) in the locked state.

9. The switch device of claim 1, wherein the sliding direction of the retainer is perpendicular to the extending direction of the button structure.

10. The switchgear as claimed in claim 1, wherein the switchgear is a fuse or a circuit breaker.