Handle and circuit breaker
By designing the movement core and locking structure in the handle, the handle lock is always installed in the handle body, solving the problem of being easily lost in the handle lock, and realizing the stable fixing and release of the handle.
Patent Information
- Application Number
- CN202420507400.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-03-15
AI Technical Summary
Existing handle locks are easily lost because they need to be removed from the handle for use.
A handle is designed, where the handle lock is composed of the lock handle and the lock core. The lock core is set in the installation cavity. The part of the lock handle is located outside the installation cavity. The locking part is wearing or back to the perforation and the shell lock or unlocked.
It is realized that the handle lock is always installed on the handle body without disassembly, avoiding the loss of the handle lock, and the handle body is fixed or released by locking and unlocking with the shell.
Smart Images
Figure CN222394761U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of power distribution equipment, and in particular to a handle and a circuit breaker. Background Art
[0002] Molded case circuit breakers are electrical switches used in power distribution systems. Molded case circuit breakers include a rotatable handle. When the power distribution system distributes power to the load, the handle must be rotated and kept in the closed position to close the molded case circuit breaker and energize the power distribution system. When the power distribution system cannot or does not need to distribute power to the load (for example, the power distribution system fails), the handle must be rotated and kept in the open position to open the molded case circuit breaker and de-energize the power distribution system.
[0003] When the power distribution system fails and the load is distributing power, in order to keep the handle in the open position, in the prior art, a handle lock is usually provided on the handle to lock the handle so that the handle cannot be rotated to the closed position.
[0004] However, the existing handle lock is an independent part, which is installed on the handle when in use and removed from the handle when not in use. Like this, the handle lock is easy to lose. Utility Model Content
[0005] In view of this, an embodiment of the present application provides a handle and a circuit breaker to solve the problem that the existing handle lock is easy to be lost.
[0006] In a first aspect, an embodiment of the present application provides a handle. The handle is applied to a circuit breaker, and the circuit breaker includes a housing. The handle includes a handle body and a handle lock. The handle body is provided with an installation cavity, and the cavity wall of the installation cavity is provided with a through hole. The handle lock includes a lock handle and a lock core connected to each other, the lock core is provided in the installation cavity, and at least part of the lock handle is located outside the installation cavity. The lock core has a locking portion. The lock handle can be subjected to force and drive the lock core to move in the installation cavity, so that the locking portion passes through the through hole and locks with the housing, or the locking portion retracts from the through hole and releases the lock with the housing.
[0007] Considering the technical problem in the prior art that the handle lock is easily lost after being removed from the handle. In this embodiment, the handle is configured to include a handle body and a handle lock, and at least a portion of the lock handle in the handle lock is disposed outside the mounting cavity to facilitate force, and the lock core is disposed in the mounting cavity to facilitate movement in the mounting cavity based on the force of the lock handle, so that the locking portion can pass through the through hole and lock with the shell, or the locking portion can be retracted from the through hole and unlocked from the shell. It can be seen that in the embodiment of the present application, when the handle needs to be fixed, the handle lock is installed on the handle body, and the handle body is fixed by locking with the shell; when the handle does not need to be fixed, the handle lock is still installed on the handle body, and the handle body is unlocked by unlocking with the shell. That is to say, regardless of whether the handle needs to be fixed, the handle lock is always installed on the handle body and does not need to be removed from the handle body, so that the handle lock will not be lost.
[0008] In a possible design, the lock core includes a first rod and a second rod connected to each other, a non-zero angle is provided between the first rod and the second rod; the first rod is connected to the lock handle; and the second rod is provided with a locking portion.
[0009] Through the above solution, the lock handle can be stressed and drive the first rod to move, and the first rod can drive the second rod to move when it moves, so that the locking part extends out of the through hole or retracts from the through hole. In addition, regardless of whether the handle needs to be fixed, the first rod and the second rod are always installed on the handle body and will not be lost.
[0010] In a possible design, the first rod is fixedly connected to the lock handle; the lock handle can bear force and drive the first rod to move in the installation cavity, and the movement of the first rod drives the second rod to move, so that the locking part passes through the through hole or retracts from the through hole.
[0011] Through the above solution, the lock handle can be subjected to force and pull the first rod to move the first rod. When the first rod moves, the second rod can move with the first rod, so that the locking part passes through the through hole and locks with the shell. Alternatively, the lock handle can be subjected to force and push the first rod to move the first rod. When the first rod moves, the second rod can move with the first rod, so that the locking part retracts from the through hole and unlocks the shell.
[0012] In a possible design, the first rod is rotatably connected to the locking handle; the second rod is movably connected to the cavity wall of the installation cavity; the locking handle can bear force and drive the first rod to rotate in the installation cavity, and when the first rod rotates, it drives the second rod to rotate, so that the locking part passes through the through hole or retracts from the through hole.
[0013] Through the above scheme, the lock handle can be subjected to force and push the first rod to rotate the first rod. When the first rod rotates, the second rod can rotate with the first rod. After the second rod rotates a certain angle, the locking part passes through the through hole and locks with the shell. Alternatively, the lock handle can be subjected to force and pull the first rod to rotate the first rod. When the first rod rotates, the second rod can rotate with the first rod, so that the locking part retracts from the through hole and unlocks the shell. The rotation of the first rod and the second rod refers to the rotation relative to the cavity wall of the installation cavity.
[0014] In a possible design, one of the cavity wall of the mounting cavity and the second rod includes a connecting block, and the other includes a connecting hole adapted to the connecting block. The connecting block is located in the connecting hole and can move in the connecting hole to facilitate the rotation of the second rod.
[0015] In the case where the cavity wall of the installation cavity includes a connection block and the second rod includes a connection hole, the second rod can be movably sleeved on the connection block through the connection hole so as to rotate around the connection block. In the case where the cavity wall of the installation cavity includes a connection hole and the second rod includes a connection block, the second rod can be movably connected to the cavity wall of the installation cavity through the connection block so as to rotate around the connection block as the rotation center.
[0016] In a possible design, the lock core is configured as a U-shaped plate, and the U-shaped plate has a first end and a second end; the first end of the U-shaped plate is connected to the lock handle, and the second end of the U-shaped plate is provided with a locking portion.
[0017] Through the above solution, the lock handle can be stressed and drive the U-shaped plate to move, and when the U-shaped plate moves, the locking portion at the second end of the U-shaped plate extends out of the through hole or retracts from the through hole. In addition, regardless of whether the handle needs to be fixed or not, the U-shaped plate is always installed on the handle body and will not be lost.
[0018] In a possible design, the handle also includes a first limiting groove and a limiting protrusion; the first limiting groove is arranged on the cavity wall of the installation cavity; the limiting protrusion is arranged on the handle lock; when the locking part is locked with the shell, the limiting protrusion extends into the first limiting groove to limit the position of the locking part.
[0019] Through the above solution, when the locking part passes through the through hole, the limiting protrusion can approach the first limiting groove based on the action of the handle lock. After the locking part is locked with the housing, the limiting protrusion can extend into the first limiting groove and abut against the groove wall of the first limiting groove to limit the position of the locking part. After the position of the locking part is limited, the locking part can be continuously locked with the housing, and the handle lock can continuously fix the handle body.
[0020] In a possible design, the handle also includes a second limiting groove, which is arranged on the cavity wall of the mounting cavity, and the second limiting groove and the first limiting groove are arranged along the force direction of the locking handle; when the locking part is located in the mounting cavity, the limiting protrusion can extend into the second limiting groove to limit the position of the locking part.
[0021] Through the above solution, during the process of the locking part retracting from the through hole, the limiting protrusion can approach the second limiting groove based on the action of the handle lock. After the locking part retracts from the through hole, the limiting protrusion can extend into the second limiting groove and abut against the groove wall of the second limiting groove to limit the position of the locking part. After the position of the locking part is limited, the locking part will not move arbitrarily in the installation cavity.
[0022] In a possible design, the installation cavity includes a cavity opening, which is different from the through hole, and the lock core enters the installation cavity along the cavity opening; the handle also includes a handle cover; the handle cover covers the cavity opening to prevent the handle lock from escaping from the cavity opening.
[0023] Through the above solution, the lock core can enter the installation cavity from the cavity opening, and at least a portion of the lock handle can be located at the cavity opening, so that the handle lock can be installed on the handle body. After the handle lock is installed on the handle body, the handle cover can cover the cavity opening to restrict the handle lock, prevent the handle lock from escaping from the cavity opening, and thus prevent the handle lock from being lost.
[0024] In a second aspect, an embodiment of the present application further provides a circuit breaker, which includes a shell and a handle of the first aspect; the shell is provided with a locking groove opposite to the through-hole position, and the locking portion can extend into the locking groove after passing through the through-hole to lock with the shell.
[0025] In this embodiment, firstly, in the handle of the first aspect, when the handle lock is not lost, the handle lock in the circuit breaker will not be lost. Secondly, the locking part can extend into the lock slot and abut against the slot wall of the lock slot to achieve locking with the housing. After the locking part is locked with the housing, the position of the handle can be fixed to prevent others from operating the handle by mistake.
[0026] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0028] Figure 1 This is an exploded view of the handle in some embodiments of the present application.
[0029] Figure 2 This is a schematic diagram of the handle body in some embodiments of the present application.
[0030] Figure 3 This is a schematic diagram of a handle lock in some embodiments of the present application.
[0031] Figure 4 Schematic diagram of a lock handle in some embodiments of the present application.
[0032] Figure 5 This is a schematic diagram of the first lock core in some embodiments of the present application.
[0033] Figure 6 This is a schematic diagram of a second lock core in some embodiments of the present application.
[0034] Figure 7 This is a schematic diagram of the locking portion being limited when the locking portion is locked with the housing in some embodiments of the present application.
[0035] Figure 8 This is a schematic diagram of the locking portion being limited when the locking portion is located in the installation cavity in some embodiments of the present application.
[0036] Fig. 9 This is a schematic diagram of a circuit breaker in some embodiments of the present application.
[0037] Description of reference numerals:
[0038] 1-circuit breaker; 11-handle; 111-handle body; Q-installation cavity; K1-perforation; K2-cavity opening; 112-handle lock; 1121-lock handle; 1121a-handle rod; 1121b-handle plate; 1121c-locking plate; K3-locking hole; 1122-lock core; SH-locking part; 1122a-first rod; 1122b-second rod; 1122c-U-shaped plate; C1-first limiting groove; C2-first limiting groove; T-limiting protrusion; 113-handle cover; 1131-cover body; 1132-claw; 12-housing;
[0039] X-first direction; Y-second direction. DETAILED DESCRIPTION
[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.
[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0043] The directional words appearing in the following description are all directions shown in the drawings, and do not limit the specific structure of the present application. For example, in the description of the present application, the directions or positional relationships indicated by the terms "center", "left", "right", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.
[0044] Furthermore, the expressions indicating directions such as the X direction and the Y direction used to illustrate the operation and construction of the components of the present embodiment are not absolute but relative, and although these indications are appropriate when the components are in the positions shown in the figures, when these positions are changed, these directions should be interpreted differently to correspond to the changes.
[0045] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.
[0046] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap-on or snap-fit connection; the physical connection may also be an integral connection, such as a connection formed by welding, bonding or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0047] Molded case circuit breakers are usually used in power distribution systems. The molded case circuit breaker includes a housing, a handle mechanism and an operating mechanism. The handle mechanism includes a handle, at least part of which is located outside the housing for easy operation. The operating mechanism is accommodated in the housing, and the operating mechanism is connected to the handle mechanism. When the handle is operated, the handle mechanism drives the operating mechanism to be turned on or off.
[0048] Normally, the handle can be in the opening position or the closing position after being operated. When the handle is in the opening position, the operating mechanism is disconnected and the molded case circuit breaker is opened. When the handle is in the closing position, the operating mechanism is connected and the molded case circuit breaker is closed.
[0049] In some special cases (for example, a power distribution system failure), the handle needs to be fixed in the open position to ensure the continuous opening of the molded case circuit breaker. Based on this, in the related art, a padlock is usually set on the handle. In the case of a power distribution system failure, the handle is locked in the open position by a padlock.
[0050] However, based on the prior art of locking the handle with a padlock, the inventors found that when the power distribution system is in normal use, the padlock needs to be removed from the handle and then the handle is switched to the closing position. When the padlock is removed from the handle, the padlock is easily lost.
[0051] Based on this, an embodiment of the present application provides a handle including a handle body and a handle lock, and the handle lock is accommodated by means of a receiving cavity of the handle body to avoid loss of the handle lock.
[0052] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.
[0053] The embodiment of the present application provides a handle 11. The handle is applied to a circuit breaker; wherein the circuit breaker may be the aforementioned molded case circuit breaker. The circuit breaker includes a housing. The housing may include a base, a middle cover, and a surface cover. Alternatively, the housing may include a base and a surface cover. The embodiment of the present application does not limit the specific composition of the housing.
[0054] See also Figure 1 The handle 11 of the embodiment of the present application includes a handle body 111 and a handle lock 112. The handle body 111 is provided with an installation cavity Q, and the cavity wall of the installation cavity Q is provided with a through hole K1. The handle lock 112 includes a lock handle 1121 and a lock core 1122 connected to each other, the lock core 1122 is provided in the installation cavity Q, and at least part of the lock handle 1121 is located outside the installation cavity Q. The lock core 1122 has a locking portion SH. The lock handle 1121 can be subjected to force and drive the lock core 1122 to move in the installation cavity Q, so that the locking portion SH passes through the through hole K1 and is locked with the shell, or the locking portion SH is retracted from the through hole K1 and released from the lock with the shell.
[0055] In this embodiment, the handle 11 is configured to include a handle body 111 and a handle lock 112, and at least a portion of the lock handle 1121 is disposed outside the installation cavity Q to facilitate force application, and the lock core 1122 is disposed in the installation cavity Q to facilitate movement in the installation cavity Q based on the force applied to the lock handle 1121, so that the locking portion SH can pass through the through hole K1 and lock with the shell, or the locking portion SH can retract from the through hole K1 and release the lock with the shell.
[0056] Specifically, when the handle 11 needs to be fixed in the aforementioned opening position, the lock handle 1121 can be subjected to a force in the first direction X, so that the locking portion SH passes through the through hole K1 and is locked with the housing. When the handle 11 needs to be switched from the aforementioned opening position to the aforementioned closing position, in the opening position, the lock handle 1121 can be subjected to a force in the second direction Y, so that the locking portion SH retracts from the through hole K1 and releases the lock from the housing, so that the handle 11 can be switched from the opening position to the closing position. Figure 1 Taking the placement state in as an example, the first direction X and the second direction Y may be opposite.
[0057] It can be seen that in the embodiment of the present application, when the handle 11 needs to be fixed, the handle lock 112 is installed on the handle body 111 and fixes the handle body 111 by locking with the shell; when the handle 11 does not need to be fixed, the handle lock 112 is still installed on the handle body 111 and unlocks the handle body 111 by unlocking with the shell. In other words, regardless of whether the handle 11 needs to be fixed, the handle lock 112 is always installed on the handle body 111 and does not need to be removed from the handle body 111, so that the handle lock 112 will not be lost.
[0058] Specifically, based on the different directions of the force applied to the lock handle 1121, the lock core 1122 may move differently in the installation cavity Q. In some examples, when the lock handle 1121 is subjected to a force in the first direction X, the lock core 1122 may move in the installation cavity Q to allow the locking portion SH to pass through the through hole K1; when the lock handle 1121 is subjected to a force in the second direction Y, the lock core 1122 may move in the installation cavity Q to allow the locking portion SH to retract from the through hole K1. In other examples, when the lock handle 1121 is subjected to a force in the second direction Y, the lock core 1122 may rotate in the installation cavity Q to allow the locking portion SH to pass through the through hole K1; when the lock handle 1121 is subjected to a force in the first direction X, the lock core 1122 may rotate in the installation cavity Q to allow the locking portion SH to retract from the through hole K1.
[0059] See also Figure 2 The shape of the handle body 111 may be substantially the same as that of the existing handle 11. The installation cavity Q may or may not penetrate the handle body 111, and this embodiment of the present application does not specifically limit this.
[0060] See also Figure 3 The handle lock 112 can be formed by assembling a lock handle 1121 and a lock core 1122. Alternatively, the handle lock 112 can be formed by integrally forming the lock handle 1121 and the lock core 1122. This embodiment of the present application does not specifically limit this.
[0061] See also Figure 4The lock handle 1121 may include a handle rod 1121a and a handle plate 1121b connected to each other, and the extension direction of the handle rod 1121a may be perpendicular to the plate surface of the handle plate 1121b. The handle plate 1121b may be located outside the installation cavity Q to facilitate force. The handle rod 1121a may be connected to the lock core 1122 to drive the lock core 1122 to move based on the force of the handle plate 1121b.
[0062] See also Figures 5 and 6 The lock core 1122 can be configured in a variety of structural forms, and the lock core 1122 can be directly connected to the lock handle 1121. For ease of understanding, the following is an exemplary description in conjunction with the accompanying drawings.
[0063] In some embodiments, see Figure 5 The lock core 1122 includes a first rod 1122a and a second rod 1122b connected to each other, and a non-zero angle is set between the first rod 1122a and the second rod 1122b; the first rod 1122a is connected to the lock handle 1121; and the second rod 1122b is provided with a locking portion SH.
[0064] In this embodiment, the lock handle 1121 can be subjected to force and drive the first rod 1122a to move. When the first rod 1122a moves, it can drive the second rod 1122b to move, so that the locking portion SH extends out of the through hole K1 or retracts from the through hole K1.
[0065] Furthermore, no matter whether the handle 11 needs to be fixed or not, the first rod 1122a and the second rod 1122b are always mounted on the handle body 111 and will not be lost.
[0066] The first rod 1122a and the second rod 1122b may be fixedly connected or assembled. For example, when the first rod 1122a and the second rod 1122b are fixedly connected, they may be integrally formed. When the first rod 1122a and the second rod 1122b are assembled and connected, they may be interference connected. The embodiment of the present application does not specifically limit the connection method between the first rod 1122a and the second rod 1122b.
[0067] A non-zero angle means that the angle is greater than 0° and less than or equal to 90°. The angle may be 10°, 30°, 45°, 60° or 90°. The embodiment of the present application does not specifically limit the angle between the first rod 1122a and the second rod 1122b.
[0068] When the first rod 1122a is connected to the lock handle 1121, different connection methods can be used based on whether the materials of the two are the same or different. In one connection method, when the materials of the first rod 1122a and the lock handle 1121 are the same, the two can be fixedly connected. Specifically, the first rod 1122a and the lock handle 1121 can be connected as one piece. In another connection method, when the materials of the first rod 1122a and the lock handle 1121 are different, the two can be assembled and connected. Specifically, please refer to Figure 4 and Figure 5 The handle rod 1121a of the lock handle 1121 may be provided with a through hole and a protrusion, and the first rod 1122a may be provided with a notch adapted to the protrusion and an arc-shaped protrusion opposite to the position of the through hole. A portion of the first rod 1122a may pass through the through hole so that the protrusion is embedded in the notch and the arc-shaped protrusion can abut against the hole wall of the through hole. The handle rod 1121a may be made of a high-strength nylon material, and the first rod 1122a may be made of a metal material.
[0069] When the lock core 1122 includes a first rod 1122a and a second rod 1122b connected to each other, the lock core 1122 may have a variety of action forms based on the different connection modes between the lock core 1122 and the lock handle 1121, and the different connection modes between the lock core 1122 and the cavity wall of the installation cavity Q. For ease of understanding, an exemplary description is given below.
[0070] In one example, the first rod 1122a is fixedly connected to the locking handle 1121; the locking handle 1121 can bear force and drive the first rod 1122a to move in the installation cavity Q. When the first rod 1122a moves, it drives the second rod 1122b to move, so that the locking portion SH passes through the through hole K1 or retracts from the through hole K1.
[0071] In this embodiment, combined with Figure 1 and Figure 5 , the lock handle 1121 can be subjected to the force in the first direction X and pull the first rod 1122a to move the first rod 1122a. When the first rod 1122a moves, the second rod 1122b can move with the first rod 1122a, so that the locking portion SH passes through the through hole K1 and is locked with the housing. Alternatively, the lock handle 1121 can be subjected to the force in the second direction Y and push the first rod 1122a to move the first rod 1122a. When the first rod 1122a moves, the second rod 1122b can move with the first rod 1122a, so that the locking portion SH retracts from the through hole K1 and is unlocked with the housing.
[0072] The first rod 1122a and the locking handle 1121 are fixedly connected, which means that after the first rod 1122a and the locking handle 1121 are connected, the relative positions of the two remain unchanged.
[0073] In addition, the extension direction of the second rod 1122b is the same as the opening direction of the through hole K1, and the second rod 1122b is aligned with the through hole K1, so that the locking portion SH can pass through or retract into the through hole K1.
[0074] In another example, the first rod 1122a is rotatably connected to the locking handle 1121; the second rod 1122b is movably connected to the cavity wall of the installation cavity Q; the locking handle 1121 can bear force and drive the first rod 1122a to rotate in the installation cavity Q, and when the first rod 1122a rotates, it drives the second rod 1122b to rotate, so that the locking portion SH passes through the through hole K1 or retracts from the through hole K1.
[0075] In this embodiment, combined with Figure 1 and Figure 5 , the lock handle 1121 can be subjected to the force of the second direction Y and push the first rod 1122a, so that the first rod 1122a rotates counterclockwise. When the first rod 1122a rotates counterclockwise, the second rod 1122b can rotate counterclockwise with the first rod 1122a. After the second rod 1122b rotates counterclockwise by a certain angle, the locking portion SH passes through the through hole K1 and locks with the shell. Alternatively, the lock handle 1121 can be subjected to the force of the first direction X and pull the first rod 1122a, so that the first rod 1122a rotates clockwise. When the first rod 1122a rotates clockwise, the second rod 1122b can rotate clockwise with the first rod 1122a, so that the locking portion SH retracts from the through hole K1 and unlocks the shell. The rotation of the first rod 1122a and the second rod 1122b refers to the rotation relative to the cavity wall of the installation cavity Q.
[0076] The first rod 1122a is rotatably connected to the lock handle 1121 , which means that after the first rod 1122a is rotatably connected to the lock handle 1121 , the first rod 1122a can rotate relative to the lock handle 1121 .
[0077] In addition, when the handle 11 is not subjected to force, the extension direction of the second rod 1122b is different from the opening direction of the through hole K1. After the handle 11 is subjected to force, the second rod 1122b rotates a certain angle, and the extension direction of the second rod 1122b is the same as the opening direction of the through hole K1, so that the locking portion SH can pass through the through hole K1 or retract from the through hole K1.
[0078] In another example mentioned above, when the second rod 1122b is movably connected to the cavity wall of the installation cavity Q, one of the cavity wall of the installation cavity Q and the second rod 1122b includes a connecting block, and the other includes a connecting hole adapted to the connecting block. The connecting block is located in the connecting hole, and the connecting block can move in the connecting hole to facilitate the rotation of the second rod 1122b.
[0079] When the cavity wall of the installation cavity Q includes a connecting block and the second rod 1122b includes a connecting hole, the second rod 1122b can be movably sleeved on the connecting block through the connecting hole so as to rotate around the connecting block.
[0080] When the cavity wall of the installation cavity Q includes a connecting hole and the second rod 1122b includes a connecting block, the second rod 1122b can be movably connected to the cavity wall of the installation cavity Q through the connecting block so as to rotate around the connecting block as the rotation center.
[0081] The connecting block may be a cylindrical block, and the connecting hole may be a cylindrical hole or a waist-shaped hole.
[0082] For example, when the connection hole is set as a cylindrical hole, the connection block can rotate relatively in the cylindrical block. The relative rotation includes: the cylindrical hole is fixed and the connection block rotates (the cylindrical hole is set on the cavity wall of the installation cavity Q, and the connection block is set on the second rod 1122b), and the connection block is fixed and the cylindrical hole rotates (the connection block is set on the cavity wall of the installation cavity Q, and the cylindrical hole is set on the second rod 1122b).
[0083] For another example, when the connection hole is set as a waist-shaped hole, the connection block can move relatively in the waist-shaped hole. The relative movement includes: the waist-shaped hole is fixed and the connection block moves (the waist-shaped hole is set on the cavity wall of the installation cavity Q, and the connection block is set on the second rod 1122b), and the connection block is fixed and the waist-shaped hole moves (the connection block is set on the cavity wall of the installation cavity Q, and the waist-shaped hole is set on the second rod 1122b).
[0084] In other embodiments, see Figure 6 The lock core 1122 is configured as a U-shaped plate 1122c, and the U-shaped plate 1122c has a first end and a second end; the first end of the U-shaped plate 1122c is connected to the lock handle 1121, and the second end of the U-shaped plate 1122c is provided with a locking portion SH.
[0085] In this embodiment, the locking handle 1121 can be subjected to force and drive the U-shaped plate 1122c to move. When the U-shaped plate 1122c moves, the locking portion SH at the second end of the U-shaped plate 1122c extends out of the through hole K1 or retracts from the through hole K1.
[0086] Furthermore, regardless of whether the handle 11 needs to be fixed or not, the U-shaped plate 1122c is always mounted on the handle body 111 and will not be lost.
[0087] The opening of the U-shaped plate 1122c faces the through hole K1.
[0088] When the lock core 1122 is configured as a U-shaped plate 1122c, the lock core 1122 may have a variety of action modes based on the different connection modes between the lock core 1122 and the lock handle 1121, and the different connection modes between the lock core 1122 and the cavity wall of the installation cavity Q. For ease of understanding, an exemplary description is given below.
[0089] In one example, the first end of the U-shaped plate 1122c is fixedly connected to the locking handle 1121; the locking handle 1121 can bear force and drive the U-shaped plate 1122c to move in the installation cavity Q, so that the locking portion SH at the second end of the U-shaped plate 1122c passes through the through hole K1 or retracts from the through hole K1.
[0090] The action process of this example is the same as the aforementioned process in which the lock core 1122 includes the first rod 1122a and the second rod 1122b, and the first rod 1122a is fixedly connected to the lock handle 1121, and will not be repeated here.
[0091] In another example, the first end of the U-shaped plate 1122c is rotatably connected to the locking handle 1121; the U-shaped plate 1122c is movably connected to the cavity wall of the installation cavity Q; the locking handle 1121 can bear force and drive the U-shaped plate 1122c to rotate in the installation cavity Q, so that the locking portion SH at the second end of the U-shaped plate 1122c passes through the through hole K1 or retracts from the through hole K1.
[0092] The action process of this example is the same as that of the aforementioned lock core 1122 including the first rod 1122a and the second rod 1122b, and the first rod 1122a is rotatably connected to the lock handle 1121, and the second rod 1122b is movably connected to the cavity wall of the installation cavity Q, and will not be repeated here.
[0093] Among them, the way in which the U-shaped plate 1122c is movably connected to the cavity wall of the installation cavity Q can be the same as the way in which the second rod 1122b is connected to the cavity wall of the installation cavity Q, which will not be repeated here.
[0094] In the above embodiment, on the basis that the lock core 1122 moves with the lock handle 1121, further, please continue to refer to Figure 4 The lock handle 1121 is provided with a lock hole K3, and the handle lock 112 also includes a padlock (not shown) adapted to the lock hole K3. When the locking portion SH is locked with the housing, the padlock is inserted into the lock hole K3 and locked to prevent the lock handle 1121 from being forced.
[0095] In this embodiment, when the locking part SH is locked with the housing, the lock hole K3 can expose the handle body 111, and the padlock can be inserted into the lock hole K3 and locked. In this way, when the lock handle 1121 is subjected to force to unlock the locking part SH from the housing, the padlock can abut against the handle body 111 to prevent the lock handle 1121 from moving. In other words, when the locking part SH is locked with the housing, the padlock can prevent the locking part SH from being unlocked from the housing.
[0096] Please continue to see Figure 4 The lock handle 1121 further includes a locking plate 1121c, which is connected to the handle rod 1121a and the handle plate 1121b, the plate surface of the locking plate 1121c can be perpendicular to the plate surface of the handle plate 1121b, and the handle rod 1121a can be coplanar with the locking plate 1121c. The locking plate 1121c is provided with a lock hole K3.
[0097] The lock hole K3 can be set as a circular hole. Correspondingly, the padlock can include a lock rod with a circular cross section. And, illustratively, the diameter of the lock hole K3 can be set to 5 mm, and correspondingly, the diameter of the lock rod can be slightly less than 5 mm, so as to facilitate insertion into the lock hole K3. It should be noted that the diameter of the lock hole K3 can be set to other sizes, and correspondingly, the diameter of the lock rod can be set to other sizes that are compatible with the size of the lock hole K3, and the embodiments of the present application do not make special limitations on this.
[0098] It is worth pointing out that when the handle lock 112 also includes a padlock, the lock core 1122 and the padlock can work together to fix the handle body 111 in the aforementioned open position. When the handle 11 can be fixed in the open position, the circuit breaker can be maintained in the open state. Furthermore, when the lock core 1122 and the padlock can work together, it can prevent others from operating the handle 111 by mistake.
[0099] In some embodiments, see Figure 7 The handle 11 also includes a first limiting groove C1 and a limiting protrusion T; the first limiting groove C1 is arranged on the cavity wall of the mounting cavity Q; the limiting protrusion T is arranged on the handle lock 112; when the locking portion SH is locked with the shell, the limiting protrusion T extends into the first limiting groove C1 to limit the position of the locking portion SH.
[0100] In this embodiment, when the locking portion SH passes through the through hole K1, the limiting protrusion T can approach the first limiting groove C1 based on the action of the handle lock 112. After the locking portion SH is locked with the housing, the limiting protrusion T can extend into the first limiting groove C1 and abut against the groove wall of the first limiting groove C1 to limit the position of the locking portion SH. After the position of the locking portion SH is limited, the locking portion SH can be continuously locked with the housing, and the handle lock 112 can continuously fix the handle body 111 in the aforementioned opening position.
[0101] The first limiting groove C1 may be disposed on the action path of the handle lock 112. For example, the first limiting groove C1 may be disposed on the action path of the lock handle 1121, or the first limiting groove C1 may be disposed on the action path of the lock core 1122. The embodiment of the present application does not specifically limit the specific setting position of the first limiting groove C1.
[0102] In addition, the position of the limiting protrusion T on the handle lock 112 can be set based on the setting position of the first limiting groove C1. For example, when the first limiting groove C1 is set on the action path of the lock handle 1121, the limiting protrusion T can be set on the lock handle 1121 so as to extend into the first limiting groove C1. When the first limiting groove C1 is set on the action path of the lock core 1122, the limiting protrusion T can be set on the lock core 1122 so as to extend into the first limiting groove C1.
[0103] The size of the limiting protrusion T can be set larger, so that it can be deformed in the process of entering the first limiting groove C1 and can reliably abut against the groove wall of the first limiting groove C1.
[0104] In some embodiments, see Figure 8 The handle 11 also includes a second limiting groove C2, which is arranged on the cavity wall of the mounting cavity Q, and the second limiting groove C2 and the first limiting groove C1 are arranged along the force direction of the locking handle 1121; when the locking portion SH is located in the mounting cavity Q, the limiting protrusion T can extend into the second limiting groove C2 to limit the position of the locking portion SH.
[0105] In this embodiment, during the process of the locking portion SH being retracted from the through hole K1, the limiting protrusion T can approach the second limiting groove C2 based on the action of the handle lock 112. After the locking portion SH is retracted from the through hole K1, the limiting protrusion T can extend into the second limiting groove C2 and abut against the groove wall of the second limiting groove C2 to limit the position of the locking portion SH. After the position of the locking portion SH is limited, the locking portion SH will not move arbitrarily in the installation cavity Q.
[0106] The second limiting groove C2 may also be provided on the action path of the limiting protrusion T. For example, when the limiting protrusion T is provided on the lock handle 1121, the second limiting groove C2 may be provided on the action path of the lock handle 1121. Alternatively, when the limiting protrusion T is provided on the lock core 1122, the second limiting groove C2 may be provided on the action path of the lock core 1122.
[0107] When the second limiting groove C2 and the first limiting groove C1 are arranged along the force direction of the lock handle 1121, the second limiting groove C2 and the first limiting groove C1 can be arranged in a variety of ways based on the different action forms of the handle lock 112. In one arrangement, when the lock core 1122 moves, the first limiting groove C1 can be set between the second limiting groove C2 and the through hole K1 along the force direction of the lock handle 1121. In another arrangement, when the lock core 1122 rotates, the second limiting groove C2 can be set between the first limiting groove C1 and the through hole K1 along the force direction of the lock handle 1121.
[0108] It should be noted that, in the above embodiment, when the handle lock 112 is actuated to allow the locking portion SH to pass through the through hole K1, the limiting protrusion T can first be disengaged from the second limiting groove C2 based on the action of the handle lock 112, and then move toward the first limiting groove C1. Conversely, when the handle lock 112 is actuated to allow the locking portion SH to retract from the through hole K1, the limiting protrusion T can first be disengaged from the first limiting groove C1 based on the action of the handle lock 112, and then move toward the second limiting groove C2.
[0109] In some embodiments, please see Figure 1 The installation cavity Q includes a cavity opening K2, which is different from the through hole K1, and the lock core 1122 enters the installation cavity Q along the cavity opening K2; the handle 11 also includes a handle cover 113; the handle cover 113 covers the cavity opening K2 to prevent the handle lock 112 from escaping from the cavity opening K2.
[0110] In this embodiment, the lock core 1122 can enter the installation cavity Q from the cavity opening K2, and at least a portion of the lock handle 1121 can be located at the cavity opening K2, so that the handle lock 112 can be installed on the handle body 111. After the handle lock 112 is installed on the handle body 111, the handle cover 113 can cover the cavity opening K2 to restrict the handle lock 112, prevent the handle lock 112 from escaping from the cavity opening K2, and further prevent the handle lock 112 from being lost.
[0111] The cavity K2 may include a first portion and a second portion, the first portion being in communication with the second portion. The lock core 1122 enters the installation cavity Q from the first portion. At least a portion of the lock handle 1121 is located at the second portion. The second portion may be coplanar with the through hole K1.
[0112] The handle cover 113 may cover the first portion of the cavity K2.
[0113] The handle cover 113 can be configured in a variety of structural forms. Based on the different forms of the handle cover 113 , the covering manners of the handle cover 113 and the cavity K2 are different.
[0114] In one example, the handle cover 113 includes a cover body 1131 and a connecting shaft (not shown in the figure), and the handle cover 113 can be covered on the cavity K2 by a pin connection. Specifically, when the handle cover 113 includes a connecting shaft, an axial hole adapted to the connecting shaft can be provided on the handle body 111, and the connecting shaft of the handle cover 113 is installed in the axial hole of the handle body 111.
[0115] In another example, see Figure 1The handle cover 113 includes a cover body 1131 and a claw 1132. The handle cover 113 can be covered on the cavity K2 by a snap connection. Specifically, when the handle cover 113 is provided with the claw 1132, a claw groove adapted to the claw 1132 can be provided on the handle body 111, and the claw 1132 of the handle cover 113 is installed in the claw groove of the handle body 111. The first limiting groove C1 and the second limiting groove C2 of the above-mentioned embodiment can be used as the claw groove of this embodiment.
[0116] The present application embodiment also provides a circuit breaker 1, see Fig. 9 The circuit breaker 1 includes a housing 12 and the aforementioned handle 11 ; the housing 12 is provided with a locking groove opposite to the through hole K1 , and the locking portion SH can extend into the locking groove after passing through the through hole K1 to be locked with the housing 12 .
[0117] In this embodiment, firstly, in the aforementioned handle 11, when the handle lock 112 will not be lost, the handle lock 112 in the circuit breaker 1 will not be lost. Secondly, the locking portion SH can extend into the lock slot and abut against the slot wall of the lock slot to achieve locking with the housing 12. After the locking portion SH is locked with the housing 12, the position of the handle 11 can be fixed to prevent others from operating the handle 11 by mistake.
[0118] The circuit breaker 1 may be a molded case circuit breaker.
[0119] The components of the housing 12 have been described above and will not be described again here. In the case where the housing 12 includes a base, a middle cover and a face cover, the middle cover may be provided with a locking groove, and the locking portion SH may extend into the locking groove to be locked with the middle cover; or the face cover may be provided with a locking groove, and the locking portion SH may extend into the locking groove to be locked with the face cover. In the case where the housing 12 includes a base and a face cover, the face cover may be provided with a locking groove, and the locking portion SH may extend into the locking groove to be locked with the face cover.
[0120] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A handle, applied to a circuit breaker, the circuit breaker comprising a housing; characterized in that: The handle comprises: The handle body is provided with a mounting cavity, and the cavity wall of the mounting cavity is provided with a perforation; A handle lock comprises a lock handle and a lock core connected to each other, wherein the lock core is arranged in the installation cavity, and at least a part of the lock handle is located outside the installation cavity; the lock core has a locking portion; the lock handle can be subjected to force and drive the lock core to move in the installation cavity, so that the locking portion passes through the through hole and is locked with the shell, or the locking portion is retracted from the through hole and released from the lock with the shell.
2. The handle according to claim 1, characterized in that: The lock core comprises a first rod and a second rod connected to each other, and a non-zero angle is provided between the first rod and the second rod; The first rod is connected to the locking handle; the second rod is provided with the locking portion.
3. The handle according to claim 2, characterized in that: The first rod is fixedly connected to the locking handle; The locking handle can bear force and drive the first rod to move in the installation cavity. When the first rod moves, the second rod is driven to move, so that the locking portion passes through the through hole or retracts from the through hole.
4. The handle according to claim 2, characterized in that: The first rod is rotatably connected to the lock handle; the second rod is movably connected to the cavity wall of the installation cavity; The locking handle can be subjected to force and drive the first rod to rotate in the installation cavity. When the first rod rotates, the second rod is driven to rotate, so that the locking portion passes through the through hole or retracts from the through hole.
5. The handle according to claim 4, characterized in that: One of the cavity wall of the installation cavity and the second rod comprises a connection block, and the other comprises a connection hole adapted to the connection block; The connecting block is located in the connecting hole, and the connecting block can move in the connecting hole to facilitate the rotation of the second rod.
6. The handle according to claim 1, characterized in that: The lock core is configured as a U-shaped plate, and the U-shaped plate has a first end and a second end; The first end of the U-shaped plate is connected to the locking handle, and the locking portion is arranged at the second end of the U-shaped plate.
7. The handle according to any one of claims 1 to 6, characterized in that: It also includes a first limiting groove and a limiting protrusion; the first limiting groove is arranged on the cavity wall of the installation cavity; the limiting protrusion is arranged on the handle lock; When the locking portion is locked with the housing, the limiting protrusion extends into the first limiting groove to limit the position of the locking portion.
8. The handle according to claim 7, characterized in that: It also includes a second limiting groove, which is arranged on the cavity wall of the installation cavity, and the second limiting groove and the first limiting groove are arranged along the force direction of the lock handle; When the locking portion is located in the installation cavity, the limiting protrusion extends into the second limiting groove to limit the position of the locking portion.
9. The handle according to any one of claims 1 to 6, characterized in that: The installation cavity comprises a cavity opening, the cavity opening is different from the through hole, and the lock core enters the installation cavity along the cavity opening; The handle also includes a handle cover; the handle cover covers the cavity to prevent the handle lock from escaping from the cavity.
10. A circuit breaker, characterized in that: It comprises a shell and a handle as claimed in any one of claims 1 to 9; the shell is provided with a locking groove opposite to the position of the through hole; the locking portion can extend into the locking groove after passing through the through hole to lock with the shell.