Double-unlocking circuit breaker drawing frame

Abstract

The utility model relates to a double-unlocking circuit breaker drawing frame, which comprises a drawing frame bottom plate, and a fixed plate and a transmission screw rod are arranged on the drawing frame bottom plate. When the lock plate is in a static state, the lock plate translates to abut against the transmission lead screw so as to lock the transmission lead screw; the shifting rod is arranged on the front end plate in a horizontal rotating mode, the shifting rod is connected with the lock plate, and the shifting rod horizontally rotates to drive the lock plate to horizontally move; the middle part of the lever sheet is rotationally connected with the front end plate in the horizontal direction; two ends of the middle connecting rod are respectively connected with the rear end of the lever sheet and the deflector rod; the push rod moves forwards and backwards, the push rod is detachably connected with the front end of the lever piece, and the push rod drives the lock plate to move horizontally through the middle connecting rod and the shifting rod. The whole drawing frame can be compatible with two unlocking modes, installation is easy and convenient, practicability is high, the current left side push rod mode can be directly switched, and the customer requirement is met.

Description

Technical Field

[0001] The utility model relates to the field of circuit breaker equipment, and particularly relates to a circuit breaker extraction rack with dual unlocking functions. Background Art

[0002] For the extraction rack of the commonly used frame circuit breaker in the market, when the extraction rack is in three positions, it is necessary to lock the internal transmission screw rod and indicating shaft. At present, the three-position unlocking in the market controls the lock plate in the extraction rack through a push rod unlocking mode or a lever unlocking mode. The push rod unlocking mode is: making front and rear presses on the extraction rack to control the movement of the lock plate; the lever unlocking mode is: controlling the movement of the lock plate by horizontal left and right movement.

[0003] The problems existing in the current extraction rack are: it cannot be compatible with the existence of two unlocking modes at the same time, the practicability is not high, and it is inconvenient for customers to switch products. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a circuit breaker extraction rack with dual unlocking functions, so as to solve the technical problem that the current circuit breaker extraction rack cannot be compatible with two unlocking modes at the same time, resulting in low practicability of the extraction rack.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Provide a circuit breaker extraction rack with dual unlocking functions, including

[0007] An extraction rack bottom plate, on which a fixing plate and a transmission screw rod are arranged. The fixing plate is fixedly arranged on the extraction rack bottom plate. The transmission screw rod passes through the fixing plate and forms a rotational fit with the fixing plate;

[0008] A lock plate, which is located on one side of the fixing plate and is elastically movable on the extraction rack bottom plate. When in a static state, the lock plate translates to abut against the transmission screw rod to lock the transmission screw rod;

[0009] A lever, which is arranged on the front end plate of the extraction rack bottom plate. The lever rotates horizontally on the front end plate. The lever is connected to the lock plate, and the horizontal rotation of the lever is suitable for driving the lock plate to translate;

[0010] A lever piece, which has an L-shaped structure. The middle part of the lever piece is horizontally rotatably connected to the front end plate;

[0011] An intermediate connecting rod, whose two ends are respectively connected to the rear end of the lever piece and the lever;

[0012] A push rod, which moves back and forth. The push rod is detachably connected to the front end of the lever piece. The push rod drives the lock plate to translate through the intermediate connecting rod and the lever.

[0013] Further, a slotted groove is formed at the rear end of the push rod. The slotted groove is formed along the length direction of the push rod. The lever piece is adapted to be inserted into the slotted groove, and a connecting pin passes through the push rod and the lever piece to rotatably connect the lever piece and the push rod together.

[0014] Further, a plug-in portion is formed at the rear end of the shift lever. A jack is formed on the lock plate. The plug-in portion is engaged with the jack so that the horizontal rotation of the shift lever drives the lock plate to translate.

[0015] Further, the end of the intermediate connecting rod passes through the lever piece to connect a gasket and a limit pin, realizing the rotational connection with the lever piece;

[0016] The end of the intermediate connecting rod passes through the shift lever and then connects a gasket and a limit pin, realizing the rotational connection with the shift lever.

[0017] Further, a boss is formed by stamping at the upper end of the front end plate. A rotating hole is formed on the shift lever. The boss is inserted into the rotating hole so that the shift lever rotates horizontally on the boss.

[0018] Further, when the push rod is connected to the lever piece, a first face mask is provided on the front end plate. A rod hole is formed on the first face mask. The push rod passes through the rod hole of the first face mask.

[0019] Further, when the push rod is detached from the lever piece, a second face mask is provided on the front end plate. A shift block is provided on the second face mask. The shift block is connected to the shift lever, and the shift lever is adapted to drive the shift lever to rotate.

[0020] The beneficial effects of the present utility model are as follows:

[0021] For the circuit breaker extraction rack with double unlocking function of the present utility model, the shift lever and the lever piece are connected together through the intermediate connecting rod, and the push rod and the lever piece are detachably connected, so that the whole extraction rack can be compatible with two unlocking modes, the installation is simple and convenient, the practicality is relatively high, and the current left push rod form can be directly switched to meet the customer requirements.

[0022] When the extraction rack needs the push rod unlocking mode, directly connect the push rod to the lever piece, and control the translation of the lock plate through the push rod; when the extraction rack needs the shift lever unlocking mode, remove the push rod, and directly control the translation of the lock plate by the shift lever. Description of the Drawings

[0023] The present utility model will be further described below with reference to the drawings.

[0024] Figure 1 and Figure 2 is the circuit breaker extraction rack adopting the push rod unlocking mode;

[0025] Figure 3 is the schematic diagram of the circuit breaker extraction rack adopting the push rod unlocking mode (without the extraction rack bottom plate and face mask);

[0026] Figure 4 It is a schematic diagram of the circuit breaker extraction rack adopting the lever unlocking mode (without the extraction rack bottom plate and face mask);

[0027] Figure 5 It is a connection diagram of the lever and the lock plate;

[0028] Figure 6 and Figure 7 is a circuit breaker extraction rack adopting the lever unlocking mode;

[0029] Among them, 1 is the extraction rack bottom plate, 11 is the transmission lead screw, 12 is the fixed plate, and 13 is the front end plate;

[0030] 2 is the lock plate, and 21 is the tension spring;

[0031] 3 is the lever, 4 is the push rod, and 41 is the connecting pin;

[0032] 5 is the lever piece, and 6 is the intermediate connecting rod;

[0033] 71 is the first face mask, and 72 is the second face mask;

[0034] 8 is the dial block. Specific implementation manners

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] This application provides a circuit breaker extraction rack with dual unlocking functions, which will be described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of this application. And in the following embodiments, each embodiment is described with emphasis. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0037] To solve the technical problem in the prior art that the circuit breaker extraction rack cannot be compatible with two unlocking modes at the same time, resulting in low practicality of the extraction rack, an embodiment of this application provides a circuit breaker extraction rack with dual unlocking functions. The following will be elaborated in detail.

[0038] As Figures 1 to 5 shown, a circuit breaker extraction rack with dual unlocking functions includes

[0039] The bottom plate 1 of the extraction rack, on which a fixed plate 12 and a transmission lead screw 11 are arranged. The fixed plate 12 is fixedly arranged on the bottom plate 1 of the extraction rack. The transmission lead screw 11 passes through the fixed plate 12 and forms a rotational fit with the fixed plate 12.

[0040] The lock plate 2, which is located on one side of the fixed plate 12 and is elastically movable on the bottom plate 1 of the extraction rack. When in a static state, the lock plate 2 translates to abut against the transmission lead screw 11 to lock the transmission lead screw 11.

[0041] The lever 3, which is arranged on the front end plate 13 of the bottom plate 1 of the extraction rack. The lever 3 is horizontally rotatably arranged on the front end plate 13. The lever 3 is connected to the lock plate 2, and the horizontal rotation of the lever 3 is suitable for driving the lock plate 2 to translate.

[0042] The lever piece 5, which has an L-shaped structure. The middle part of the lever piece 5 is horizontally rotatably connected to the front end plate 13.

[0043] The intermediate connecting rod 6, whose two ends are respectively connected to the rear end of the lever piece 5 and the lever 3.

[0044] The push rod 4, which moves back and forth. The push rod 4 is detachably connected to the front end of the lever piece 5. The push rod 4 drives the lock plate 2 to translate through the intermediate connecting rod 6 and the lever 3.

[0045] In this embodiment, a tension spring 21 is arranged between the lock plate 2 and the bottom plate 1 of the extraction rack. The lock plate 2 moves towards the locking opening of the transmission lead screw 11 through the tension spring 21.

[0046] Specifically, as an optional implementation manner in this embodiment, as Figure 3 Figure 4 shown, a slotted hole is formed at the rear end of the push rod 4. The slotted hole is formed along the length direction of the push rod 4. The lever piece 5 is suitable for being inserted into the slotted hole. The connecting pin 41 passes through the push rod 4 and the lever piece 5 to rotatably connect the lever piece 5 and the push rod 4 together.

[0047] Connecting the lever piece 5 and the push rod 4 through the connecting pin 41 facilitates the quick disassembly and assembly of the push rod 4.

[0048] A through hole is formed on the front end plate 13. The push rod 4 passes through the through hole of the front end plate 13 to guide the push rod 4 to move back and forth.

[0049] Specifically, as an optional implementation manner in this embodiment, as Figure 5 shown, a plug-in portion is formed at the rear end of the lever 3. A jack is formed on the lock plate 2. The plug-in portion is matched with the jack so that the horizontal rotation of the lever 3 drives the lock plate 2 to translate.

[0050] When the lever 3 rotates, it drives the plug-in portion to swing, thereby driving the lock plate 2 to reciprocate between the locking position and the unlocking position.

[0051] Specifically, as an alternative implementation in this embodiment, as Figure 3 Figure 4 shown, the end of the intermediate connecting rod 6 passes through the lever piece 5 to connect the gasket and the limit pin, realizing a rotational connection with the lever piece 5;

[0052] The end of the intermediate connecting rod 6 passes through the shift lever 3 and then connects the gasket and the limit pin, realizing a rotational connection with the shift lever 3.

[0053] Specifically, as an alternative implementation in this embodiment, as Figures 1 to 4 shown, a boss is formed by stamping at the upper end of the front end plate 13, a rotating hole is formed in the shift lever 3, and the boss is inserted into the rotating hole so that the shift lever 3 rotates horizontally on the boss.

[0054] Specifically, as an alternative implementation in this embodiment, as Figure 1 Figure 2 shown, when the circuit breaker draw-out rack adopts the push rod unlocking mode, when the push rod 4 is connected to the lever piece 5, a first mask 71 is provided on the front end plate 13, a rod hole is formed in the first mask 71, and the push rod 4 passes through the rod hole of the first mask 71.

[0055] The position of the first mask 71 facing the shift lever 3 is blocked. In this push rod unlocking mode, the shift lever 3 is not required.

[0056] Specifically, as an alternative implementation in this embodiment, as Figure 6 Figure 7 shown, when the circuit breaker draw-out rack adopts the shift lever unlocking mode, when the push rod 4 is detached from the lever piece 5, a second mask 72 is provided on the front end plate 13, a shift block 8 is provided on the second mask 72, the shift block 8 can be toggled left and right in the second housing, the shift block 8 is connected to the shift lever 3, and the shift lever 3 is adapted to drive the shift lever 3 to rotate, thereby controlling the movement of the lock plate 2. The position of the second mask 72 facing the lever piece 5 is blocked. In this shift lever unlocking mode, the push rod 4 is not required.

[0057] The double-unlockable circuit breaker draw-out rack of the present utility model connects the shift lever 3 and the lever piece 5 together through the intermediate connecting rod 6, and the push rod 4 is detachably connected to the lever piece 5, so that the entire draw-out rack can be compatible with two unlocking modes, can be paired with the first mask 71 or the second mask 72, is simple and convenient to install, has a high practicality, and can directly switch to the current left push rod 4 form to meet customer requirements.

[0058] Each device (components without specific structures) selected in this application is a general standard component or a component known to those skilled in the art, and its structure and principle can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0059] In the description of the embodiments of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0060] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0061] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some communication interfaces. The indirect coupling or communication connection of the devices or units may be in an electrical, mechanical, or other form.

[0062] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0063] In addition, the functional units in each embodiment of the present utility model can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0064] Taking the above-described ideal embodiments of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A double unlockable circuit breaker drawer, characterized in that: include A drawer bottom plate (1), a fixed plate (12) and a transmission screw (11) on the drawer bottom plate (1), the fixed plate (12) being fixedly arranged on the drawer bottom plate (1), the transmission screw (11) passing through the fixed plate (12) and forming a rotational fit with the fixed plate (12); A locking plate (2) is located on one side of the fixing plate (12) and is elastically movable on the bottom plate (1) of the drawer. When in a static state, the locking plate (2) moves horizontally to abut against the transmission screw (11) to lock the transmission screw (11); A lever (3) is arranged on a front end plate (13) of the chassis bottom plate (1), the lever (3) being arranged on the front end plate (13) to be horizontally rotatable, the lever (3) being connected to the lock plate (2), and the lever (3) being horizontally rotated to drive the lock plate (2) to move in translation; A lever sheet (5), wherein the lever sheet (5) is in an L-shaped structure, and the middle portion of the lever sheet (5) is horizontally rotatably connected to the front end plate (13); An intermediate connecting rod (6), both ends of which are respectively connected to the rear end of the lever sheet (5) and the shifting rod (3); A push rod (4) is configured to move forward and backward, and is detachably connected to the front end of a lever sheet (5). The push rod (4) drives the lock plate (2) to move in translation via an intermediate connecting rod (6) and a shifting rod (3).

2. The double unlockable circuit breaker drawer according to claim 1, characterized in that: The rear end of the push rod (4) is provided with a sheet groove, the sheet groove being provided along the length direction of the push rod (4), the lever sheet (5) being adapted to be inserted into the sheet groove, and the connecting pin (41) passing through the push rod (4) and the lever sheet (5) so as to rotatably connect the lever sheet (5) and the push rod (4) together.

3. The double unlockable circuit breaker drawer according to claim 1, characterized in that: The rear end of the lever (3) forms a plug-in portion, and the lock plate (2) is provided with a plug-in hole. The plug-in portion cooperates with the plug-in hole so that the lever (3) rotates horizontally to drive the lock plate (2) to translate.

4. The double unlockable circuit breaker drawer according to claim 1, characterized in that: The end of the intermediate connecting rod (6) passes through the lever piece (5) to connect the gasket and the limit pin, thereby realizing rotational connection with the lever piece (5); The end of the intermediate connecting rod (6) passes through the shifting rod (3) and is connected to a gasket and a limit pin to achieve rotational connection with the shifting rod (3).

5. The double unlockable circuit breaker drawer according to claim 1, characterized in that: The upper end of the front end plate (13) is formed into a boss by stamping, and a rotation hole is provided on the shifting rod (3), and the boss is inserted into the rotation hole, so that the shifting rod (3) is located on the boss and rotates horizontally.

6. The double unlockable circuit breaker drawer according to claim 1, characterized in that: When the push rod (4) is connected to the lever sheet (5), a first mask (71) is provided on the front end plate (13), a rod hole is provided on the first mask (71), and the push rod (4) passes through the rod hole of the first mask (71).

7. The double unlockable circuit breaker drawer according to claim 1, characterized in that: When the push rod (4) is removed from the lever sheet (5), a second mask (72) is provided on the front end plate (13), a shifting block (8) is provided on the second mask (72), and the shifting block (8) is connected to the shifting rod (3) and is suitable for driving the shifting rod (3) to rotate through the shifting rod (3).

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