Interlocking driving device, interlocking mechanism, circuit breaker assembly and switch cabinet

Abstract

The utility model belongs to the technical field of interlocking devices, and discloses an interlocking driving device, an interlocking mechanism, a circuit breaker assembly and a switch cabinet, and the interlocking driving device comprises a support and a guide rod which is vertically arranged and is in sliding connection with the upper end surface of the support; the upper end of the short connecting rod is rotationally connected with the lower end of the guide rod; the corner of the corner connecting rod is rotationally connected with the side wall of the support, the upper end of the right-angle connecting rod is rotationally connected with the lower end of the short connecting rod, and a sliding groove is formed in the lower end of the right-angle connecting rod; one end of the turning plate is fixedly connected with a driving plate perpendicular to the turning plate, the other end of the driving plate is rotationally connected with a sliding block, and the sliding block is connected into the sliding groove in a sliding mode. By means of the connecting rod structure, the interlocking driving device achieves the large stroke of the guide rod with a small driving angle. Under the condition that the turning plate of the chassis truck is turned up by a small angle, the vertical large stroke is achieved through the connecting rod structure. And the situation that the circuit breaker and the chassis cannot be interlocked due to insufficient stroke is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of interlocking devices, and in particular relates to an interlocking drive device, an interlocking mechanism, a circuit breaker assembly and a switch cabinet. Background Art

[0002] In order to safely and reliably move the circuit breaker into or out of the switchgear, a chassis is usually set up under the circuit breaker. The chassis is equipped with running wheels, so it can move forward or backward on the track of the switchgear. The device used to realize the interlocking and unlocking between the chassis and the circuit breaker is an important device to ensure the safe operation of the power grid, ensure personal safety, and prevent misoperation. The interlocking between the chassis and the circuit breaker needs to ensure the following functions: the closing or opening operation can only be performed when the circuit breaker is in the working position or the test position; the closing operation cannot be performed when the circuit breaker is in the middle position.

[0003] Generally, the chassis vehicle includes a vehicle frame, a screw rod and a handle. By shaking the handle to rotate the screw rod, the chassis vehicle can be moved into or out of the switchgear. In addition, the chassis vehicle also includes a flap, which is linked with the screw rod. The circuit breaker generally includes an interlocking drive device, which has an interlocking drive device and an interlocking drive device. In the process of shaking the chassis vehicle into or out of the switchgear, the flap is tilted upward and moved to a locked position through the interlocking drive device, so that the opening half shaft of the circuit breaker is lifted up and locked, thereby ensuring that the circuit breaker cannot be closed.

[0004] In the existing technical solution, the interlocking drive device includes a roller and a guide rod. When the flap is tilted up, the roller pushes the guide rod to move upward, so that the interlocking drive device moves to the locking position, thereby realizing the interlocking of the circuit breaker and the chassis, so that the circuit breaker cannot be closed. Since the interlocking drive device is separated from the chassis and the circuit breaker interlocking drive device and there is a gap between them, the idle stroke during the linkage process is large. In addition, since the tilting angle of the flap is small, the stroke converted to the interlocking is also relatively small. Therefore, when the stroke is insufficient, the interlocking drive device cannot be reliably interlocked, so that the circuit breaker can be closed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an interlocking drive device, an interlocking mechanism, a circuit breaker assembly and a switch cabinet. Through the connecting rod structure, the interlocking drive device of the utility model realizes a large travel of the guide rod at a small driving angle. In other words, when the flap of the chassis vehicle is turned up at a small angle, a large vertical travel is achieved through the connecting rod structure. Therefore, the occurrence of a situation where the interlocking between the circuit breaker and the chassis vehicle cannot be achieved due to insufficient travel is avoided.

[0006] The purpose of this disclosure can be achieved through the following technical solutions:

[0007] An interlocking drive device, comprising:

[0008] Bracket,

[0009] A guide rod, the guide rod is vertically arranged to penetrate the upper end surface of the bracket and is slidably connected to the upper end surface of the bracket;

[0010] A short connecting rod, the upper end of which is rotatably connected to the lower end of the guide rod;

[0011] A corner connecting rod, wherein the corner of the corner connecting rod is rotatably connected to the side wall of the bracket, the upper end of the right-angle connecting rod is rotatably connected to the lower end of the short connecting rod, and a sliding groove is provided at the lower end of the right-angle connecting rod;

[0012] A flap, one end of which is fixedly connected to a driving plate vertically arranged thereon, and the other end of the driving plate is rotatably connected to a sliding block, which is slidably connected in a sliding groove.

[0013] The above technical solution, its principle and technical effect:

[0014] When the flap rotates counterclockwise around its axis, the driving plate rotates counterclockwise around the axis of the flap. The rotation of the driving plate causes the corner connecting rod to rotate clockwise around the connection point with the side wall of the bracket, so that the rod at the upper end of the corner connecting rod moves from an inclined state to a vertical state. At the same time, the short connecting rod also follows and moves from an inclined state to a vertical state, pushing the guide rod upward. Through the arrangement of the short connecting rod and the corner connecting rod, a large interlocking stroke is achieved by utilizing a small driving angle, thereby realizing a separate interlocking drive device with a large stroke, high reliability, simple structure and easy assembly.

[0015] Furthermore, the bracket includes a vertical plate and a horizontal plate fixedly connected to the upper end of the vertical plate, the vertical plate and the horizontal plate are vertically arranged, and the guide rod passes through the horizontal plate.

[0016] Furthermore, a guide sleeve is fixedly connected to the lower end surface of the transverse plate, a guide rod passes through the guide sleeve, a limit plate is slidably connected inside the guide sleeve, and the limit plate is fixedly connected to the guide rod.

[0017] Furthermore, a spring is arranged in the guide sleeve and at the lower end of the limiting piece, and the spring is sleeved on the guide rod.

[0018] Furthermore, the guide rod, the short connecting rod and the corner connecting rod are connected by a pin shaft.

[0019] Furthermore, a connecting shaft is rotatably connected to the corner of the corner connecting rod, and the connecting shaft is fixedly connected to the vertical plate.

[0020] Furthermore, the vertical plate is provided with a plurality of mounting holes.

[0021] An interlocking mechanism comprises an interlocking drive device.

[0022] A circuit breaker assembly is characterized in that the circuit breaker assembly comprises a chassis vehicle, a circuit breaker arranged on the chassis vehicle, and an interlocking mechanism.

[0023] A switch cabinet includes a circuit breaker assembly.

[0024] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0025] Fixed connection refers to a connection in which parts or components are fixed without any relative movement. There are two types of connection: detachable and non-detachable.

[0026] (1) A removable connection is a connection that uses screws, splines, wedge pins, etc. to hold parts together. This type of connection can be disassembled for maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of the bolts, keys, and wedge pins) and they must be properly tightened.

[0027] (2) Non-detachable connections mainly refer to welding, riveting and tenoning. Since they need to be disassembled by forging, sawing or oxygen cutting for maintenance or replacement, spare parts generally cannot be reused. At the same time, when making connections, attention should be paid to process quality, technical inspection and remedial measures (such as calibration, polishing, etc.).

[0028] A threaded connection refers to a detachable connection in which the connected parts are connected together using threaded parts (or the threaded parts of the connected parts).

[0029] A sliding connection is when two objects are in contact but not fixed and can slide relative to each other.

[0030] A rotational connection is a connection between parts that allows the parts to rotate relative to each other.

[0031] Beneficial effects of the present disclosure:

[0032] Through the connecting rod structure, the interlocking drive device of the utility model realizes a large travel of the guide rod at a small driving angle. That is to say, when the flap of the chassis vehicle is turned up at a small angle, a large vertical travel is realized through the connecting rod structure. Therefore, the occurrence of the situation where the interlocking between the circuit breaker and the chassis vehicle cannot be realized due to insufficient travel is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1is a schematic diagram of the overall structure of an embodiment of the present disclosure;

[0035] Figure 2 It is a schematic diagram of the internal structure of the limiting sleeve of an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0037] In the description of the present disclosure, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limitations on the present disclosure.

[0038] For ease of description, the drawings of the present disclosure simplify or omit commonly used components in the art, such as circuit breakers, circuit breaker housings, chassis components and other components, etc. These omitted or simplified components do not affect the understanding of the present disclosure by those skilled in the art.

[0039] According to the concept of this application, Figure 1 to Figure 2 To describe an embodiment of an interlocking drive device. Specifically, the interlocking drive device is constructed as a split structure, which has components such as a bracket 1, a guide rod 2, and a flap 5. Through the mutual cooperation of the short connecting rod 3, the corner connecting rod 4 and other structures, when the flap 5 rotates counterclockwise around its axis, the driving plate 51 rotates counterclockwise around the axis of the flap 5, and the rotation of the driving plate 51 causes the corner connecting rod 4 to rotate clockwise around its connection point with the side wall of the bracket 1, so that the rod at the upper end of the corner connecting rod 4 moves from an inclined state to a vertical state, and at the same time, the short connecting rod 3 also follows and moves from an inclined state to a vertical state, pushing the guide rod 2 upward, and through the arrangement of the short connecting rod 3 and the corner connecting rod 4, a large interlocking stroke is achieved by using a small driving angle, thereby realizing a split interlocking drive device with a large stroke, high reliability, simple structure, and easy assembly.

[0040] like Figure 1-2 As shown, an interlocking drive device comprises:

[0041] Bracket 1,

[0042] A guide rod 2, which is vertically arranged to penetrate the upper end surface of the bracket 1 and is slidably connected to the upper end surface of the bracket 1;

[0043] A short connecting rod 3, the upper end of the short connecting rod 3 is rotatably connected to the lower end of the guide rod 2;

[0044] A corner connecting rod 4, wherein the corner of the corner connecting rod 4 is rotatably connected to the side wall of the bracket 1, the upper end of the right-angle connecting rod 4 is rotatably connected to the lower end of the short connecting rod 3, and a sliding groove 41 is provided at the lower end of the right-angle connecting rod 4;

[0045] The flap 5 has one end fixedly connected to a driving plate 51 vertically arranged therewith, and the other end of the driving plate 51 is rotatably connected to a sliding block 52 , which is slidably connected in the sliding groove 41 .

[0046] When the flap 5 rotates counterclockwise around its axis, the driving plate 51 rotates counterclockwise around the axis of the flap 5, and the rotation of the driving plate 51 causes the corner link 4 to rotate clockwise around its connection point with the side wall of the bracket 1, so that the rod at the upper end of the corner link 4 moves from an inclined state to a vertical state, and at the same time, the short link 3 also moves from an inclined state to a vertical state, pushing the guide rod 2 upward, and through the arrangement of the short link 3 and the corner link 4, a large interlocking stroke is achieved by using a small driving angle, thereby realizing a separate interlocking drive device with a large stroke, high reliability, simple structure, and easy assembly. The arrangement of the slider 52 and the slide groove 41 avoids the motion interference between the driving plate 51 and the corner link 4.

[0047] The slider is a mold component that can slide perpendicular to the mold opening and closing direction or at a certain angle to the mold opening and closing direction during the mold opening and closing action. When the product structure makes it impossible to demold the mold normally without the slider, the slider must be used. The material itself has appropriate hardness and wear resistance to withstand the friction of movement. The hardness of the cavity part or core part on the slider should be at the same level as the other parts of the cavity and core.

[0048] In mechanical transmission, the relative sliding between two objects, when one object slides inside another object, the groove opened is called a slide.

[0049] In one embodiment of the present invention, the bracket 1 includes a vertical plate 11 and a horizontal plate 12 fixedly connected to the upper end of the vertical plate 11 . The vertical plate 11 and the horizontal plate 12 are vertically arranged, and the guide rod 2 passes through the horizontal plate 12 .

[0050] In one embodiment of the present invention, the lower end surface of the horizontal plate 12 is fixedly connected with a guide sleeve 6, the guide rod 2 passes through the guide sleeve 6, a limit plate 21 is slidably connected inside the guide sleeve 6, and the limit plate 21 is fixedly connected to the guide rod 2. The guide rod 2 is further limited to move vertically up and down to achieve locking and unlocking.

[0051] In one embodiment of the present invention, a spring 7 is provided in the guide sleeve 6 and at the lower end of the limit plate 21, and the spring 7 is sleeved on the guide rod 2. The setting of the spring 7 stores elastic potential energy during the unlocking process and converts the elastic potential energy into kinetic energy during the locking process, thereby providing assistance and guiding the guide rod 2.

[0052] In one embodiment of the present invention, the guide rod 2 , the short connecting rod 3 and the corner connecting rod 4 are connected by a pin 8 .

[0053] In one embodiment of the present invention, a connecting shaft 13 is rotatably connected to the corner of the corner connecting rod 4, and the connecting shaft 13 is fixedly connected to the vertical plate 11. The corner connecting rod 4 rotates around the connecting shaft 13, which plays a supporting role for the corner connecting rod 4.

[0054] In one embodiment of the present invention, a plurality of mounting holes 14 are provided on the vertical plate 11 for passing through and fixing the bracket 1 therethrough.

[0055] An interlocking mechanism comprises an interlocking drive device.

[0056] A circuit breaker assembly comprises a chassis vehicle, a circuit breaker arranged on the chassis vehicle and an interlocking mechanism.

[0057] A switch cabinet comprises a circuit breaker assembly.

[0058] The following is a further description of an interlocking drive device, an interlocking mechanism, a circuit breaker assembly and a switch cabinet provided by the utility model in combination with the accompanying drawings and implementation modes.

[0059] An interlocking drive device, comprising:

[0060] Bracket 1,

[0061] A guide rod 2, which is vertically arranged to penetrate the upper end surface of the bracket 1 and is slidably connected to the upper end surface of the bracket 1;

[0062] A short connecting rod 3, the upper end of the short connecting rod 3 is rotatably connected to the lower end of the guide rod 2;

[0063] A corner connecting rod 4, wherein the corner of the corner connecting rod 4 is rotatably connected to the side wall of the bracket 1, the upper end of the right-angle connecting rod 4 is rotatably connected to the lower end of the short connecting rod 3, and a sliding groove 41 is provided at the lower end of the right-angle connecting rod 4;

[0064] The flap 5 has one end fixedly connected to a driving plate 51 vertically arranged therewith, and the other end of the driving plate 51 is rotatably connected to a sliding block 52 , which is slidably connected in the sliding groove 41 .

[0065] The bracket 1 includes a vertical plate 11 and a horizontal plate 12 fixedly connected to the upper end of the vertical plate 11 . The vertical plate 11 and the horizontal plate 12 are vertically arranged, and the guide rod 2 passes through the horizontal plate 12 .

[0066] The lower end surface of the transverse plate 12 is fixedly connected with a guide sleeve 6 , the guide rod 2 passes through the guide sleeve 6 , a limit plate 21 is slidably connected inside the guide sleeve 6 , and the limit plate 21 is fixedly connected to the guide rod 2 .

[0067] A spring 7 is provided in the guide sleeve 6 and at the lower end of the limiting piece 21 , and the spring 7 is sleeved on the guide rod 2 .

[0068] The guide rod 2 , the short connecting rod 3 and the corner connecting rod 4 are connected via a pin 8 .

[0069] A connecting shaft 13 is rotatably connected to the corner of the corner connecting rod 4 , and the connecting shaft 13 is fixedly connected to the vertical plate 11 .

[0070] A plurality of mounting holes 14 are formed on the vertical plate 11 .

[0071] An interlocking mechanism comprises an interlocking drive device.

[0072] A circuit breaker assembly comprises a chassis vehicle, a circuit breaker arranged on the chassis vehicle and an interlocking mechanism.

[0073] A switch cabinet comprises a circuit breaker assembly.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0075] The above shows and describes the basic principles, main features and advantages of the present disclosure. Those skilled in the art should understand that the present disclosure is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present disclosure. Without departing from the spirit and scope of the present disclosure, the present disclosure may have various changes and improvements, and these changes and improvements fall within the scope of the present disclosure to be protected.

Claims

1. An interlocking drive device, characterized in that: include: Bracket (1), A guide rod (2), the guide rod (2) being arranged vertically to penetrate the upper end surface of the bracket (1) and being slidably connected to the upper end surface of the bracket (1); A short connecting rod (3), the upper end of which is rotatably connected to the lower end of the guide rod (2); A corner connecting rod (4), wherein the corner of the corner connecting rod (4) is rotatably connected to the side wall of the bracket (1), the upper end of the corner connecting rod (4) is rotatably connected to the lower end of the short connecting rod (3), and a sliding groove (41) is provided at the lower end of the corner connecting rod (4); A flap (5), one end of the flap (5) is fixedly connected to a driving plate (51) vertically arranged therewith, the other end of the driving plate (51) is rotatably connected to a sliding block (52), and the sliding block (52) is slidably connected in the sliding groove (41).

2. An interlocking drive device according to claim 1, characterized in that: The bracket (1) comprises a vertical plate (11) and a horizontal plate (12) fixedly connected to the upper end of the vertical plate (11); the vertical plate (11) and the horizontal plate (12) are arranged vertically, and the guide rod (2) passes through the horizontal plate (12).

3. An interlocking drive device according to claim 2, characterized in that: The lower end surface of the transverse plate (12) is fixedly connected with a guide sleeve (6), the guide rod (2) passes through the guide sleeve (6), a limit plate (21) is slidably connected inside the guide sleeve (6), and the limit plate (21) is fixedly connected to the guide rod (2).

4. An interlocking drive device according to claim 3, characterized in that: A spring (7) is arranged inside the guide sleeve (6) and at the lower end of the limiting piece (21), and the spring (7) is sleeved on the guide rod (2).

5. An interlocking drive device according to claim 1, characterized in that: The guide rod (2), the short connecting rod (3) and the corner connecting rod (4) are connected via a pin shaft (8).

6. An interlocking drive device according to claim 2, characterized in that: A connecting shaft (13) is rotatably connected to the corner of the corner connecting rod (4), and the connecting shaft (13) is fixedly connected to the vertical plate (11).

7. An interlocking drive device according to claim 2, characterized in that: The vertical plate (11) is provided with a plurality of mounting holes (14).

8. An interlocking mechanism, characterized in that: The interlocking mechanism comprises an interlocking drive device as described in any one of claims 1-7.

9. A circuit breaker assembly, characterized in that: The circuit breaker assembly comprises a chassis vehicle, a circuit breaker arranged on the chassis vehicle, and the interlocking mechanism as claimed in claim 8.

10. A switch cabinet, characterized in that: The switch cabinet comprises the circuit breaker assembly as claimed in claim 9.

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