Electric disconnecting link and switch cabinet

Abstract

The invention belongs to the technical field of knife switches, and discloses an electric knife switch and a switchgear, the electric knife switch comprises a main body frame, a fixed frame, a knife switch assembly and a driving assembly, the fixed frame is opposite to the main body frame and is fixedly connected with the main body frame, the knife switch assembly is arranged in the main body frame, and the knife switch assembly comprises a knife switch. The driving assembly comprises a driving part, a faceplate, a driving shaft and a driving arm, the driving part is arranged on the fixed frame, the driving shaft penetrates through two opposite side walls of the fixed frame, the driving part can be selectively connected with the faceplate and drives the faceplate to rotate, the faceplate fixedly sleeves the driving shaft, and the driving arm is arranged on the circumferential surface of the driving shaft and fixedly connected with the driving shaft; the driving arm is opposite to the disconnecting link, and when the faceplate rotates, the driving arm can be in lap joint with the disconnecting link and drive the disconnecting link to rotate. The electric disconnecting link can be electrically controlled and can also be manually controlled, so that the state of the disconnecting link in the disconnecting link assembly can still be controlled when a control system of the electric disconnecting link fails.

Description

Technical Field

[0001] The invention relates to the technical field of knife switches, and in particular to an electric knife switch and a switch cabinet. Background Art

[0002] A knife switch is a type of manual switch for power equipment, also known as a knife switch, and is generally used for low-voltage power control. Most of the existing knife switches are manual, but the opening and closing of manual knife switches require manual operation. When the equipment encounters an emergency condition, the staff cannot drive the knife switch to open or close in time. Therefore, the market has introduced electric knife switches to reduce the workload of staff. However, electric knife switches often have control system failures, resulting in the inability to control the power-on or power-off status of the knife switch in the electric knife switch. When the control system of the electric knife switch fails, the equipment using the electric knife switch needs to be powered off, and then the electric knife switch needs to be repaired, which in turn affects the production efficiency of the products processed by the equipment.

[0003] Therefore, there is an urgent need for an electric knife switch and a switch cabinet to solve the above-mentioned technical problems. Summary of the invention

[0004] The first purpose of the present invention is to provide an electric knife switch that can still control the power on or off of the knife switch when a fault occurs in the electric knife switch control system, so that the equipment can operate normally and the production efficiency of the products processed by the equipment is guaranteed.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] An electric knife switch, comprising:

[0007] A main frame and a fixed frame, wherein the fixed frame is opposite to the main frame and fixedly connected to the main frame;

[0008] A knife switch assembly is placed in the main frame, and the knife switch assembly includes a knife switch;

[0009] The driving assembly includes a driving member, a faceplate, a driving shaft and a driving arm, wherein the driving member is placed on the fixed frame, and the driving shaft passes through two opposite side walls of the fixed frame. The driving member can selectively connect with the faceplate and drive the faceplate to rotate, and the faceplate is sleeved and fixed on the driving shaft; the driving arm is placed on the circumference of the driving shaft and fixedly connected to the driving shaft, and the driving arm is opposite to the knife switch. When the faceplate rotates, the driving arm can overlap with the knife switch and drive the knife switch to rotate.

[0010] As an optimal technical solution for the electric knife switch, the knife switch assembly includes a connecting shaft and a plurality of knife switches, the connecting shaft passes through two opposite side walls of the main frame and is parallel to the driving shaft, the plurality of knife switches are sleeved on the connecting shaft at intervals along the length direction of the connecting shaft, the driving assembly includes a plurality of driving arms, the plurality of driving arms are arranged corresponding to the plurality of knife switches, and the plurality of driving arms are arranged at intervals along the circumference of the driving shaft.

[0011] As a preferred technical solution for the electric knife switch, a plurality of the driving arms are arranged at intervals along the circumference of the driving shaft.

[0012] As an optimal technical solution for the electric knife switch, the driving member includes a driving motor, a first gear, a second gear and a rotating plate. The second gear is rotatably placed in the fixed frame close to the inner wall of the face disc and opposite to the face disc. The driving motor is connected to the first gear, and the second gear is meshed with the first gear. The rotating plate is arranged on the side of the second gear facing the face disc. The rotating plate is provided with a protruding column, and a plurality of accommodating grooves are provided on the circumferential surface of the face disc at intervals. When the driving motor drives the first gear to rotate, the protruding column can enter the accommodating groove to rotate the face disc.

[0013] As a preferred technical solution for the electric knife switch, the rotating plate is placed at the center of a side of the second gear facing the faceplate.

[0014] As a preferred technical solution for the electric knife switch, the diameter of the second gear is an integer multiple of the diameter of the first gear.

[0015] As a preferred technical solution of the electric knife switch, the electric knife switch also includes a manual turntable, which is sleeved and fixed on the driving shaft and spaced apart from the faceplate.

[0016] As a preferred technical solution for the electric knife switch, a plurality of insertion slots are provided at intervals on the circumference of the manual turntable, and the electric knife switch further comprises a handle, which can be inserted into the insertion slots.

[0017] As an optimal technical solution for the electric knife switch, a lap groove is provided at one end of the knife switch facing the drive shaft, and a lap protrusion is correspondingly provided on the side of the drive arm. When the faceplate drives the drive shaft to rotate, the lap protrusion can enter the lap groove to rotate the knife switch.

[0018] The second object of the present invention is to provide a switch cabinet. To achieve this object, the present invention adopts the following technical solutions:

[0019] A switch cabinet comprises any one of the electric knife switches described above.

[0020] The beneficial effects of the present invention are:

[0021] The electric knife switch provided by the present invention drives the faceplate to rotate through a driving member, so that the driving arm arranged on the outer periphery of the driving shaft rotates, and the driving arm will overlap with the knife switch in the knife switch assembly when rotating. As the driving arm rotates, it will drive the knife switch to rotate, thereby controlling the power-on state and the power-off state of the knife switch, and further controlling the working state of the equipment. Since the driving member can be selectively connected to the faceplate, when the control system of the electric knife switch fails, the faceplate can be separated from the driving member. At this time, the faceplate is manually rotated to rotate the driving shaft, and then the driving arm is rotated and overlapped with the knife switch to drive the knife switch to rotate, controlling the power-on or power-off state of the knife switch, ensuring that the equipment using the electric knife switch can work normally, and ensuring the production efficiency of the products processed by the equipment. Subsequently, after the equipment completes product processing, the electric knife switch can be repaired, so that the electric knife switch can be operated more flexibly.

[0022] The switch cabinet provided by the present invention can still manually control the opening or closing state of the knife switch in the electric knife switch even after the electric knife switch used in the switch cabinet fails, so that the switch cabinet can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the electric knife switch provided by the present invention from a first perspective;

[0024] Figure 2 is a schematic diagram of the electric knife switch provided by the present invention from a second viewing angle;

[0025] Figure 3 It is a schematic diagram of the electric knife switch provided by the present invention from a third viewing angle.

[0026] In the figure:

[0027] 1. Main frame;

[0028] 2. Knife switch assembly; 21. Knife switch; 211. Lap groove;

[0029] 3. Driving assembly; 31. Driving member; 311. Driving motor; 312. First gear; 313. Second gear; 314. Rotating plate; 32. Faceplate; 321. Accommodating groove; 33. Driving shaft; 34. Driving arm; 341. Overlapping protrusion;

[0030] 4. Manual turntable; 41. Insert slot. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0035] Embodiment 1

[0036] like Figures 1 to 3As shown, this embodiment provides an electric knife switch 21, including a main frame 1, a fixed frame (not shown in the figure), a knife switch assembly 2 and a driving assembly 3, wherein the fixed frame is opposite to the main frame 1 and is fixedly connected to the main frame 1, the knife switch assembly 2 is placed in the main frame 1, and the knife switch assembly 2 includes the knife switch 21. The driving assembly 3 includes a driving member 31, a faceplate 32, a driving shaft 33 and a driving arm 34, the driving member 31 is connected to the fixed frame, and the driving shaft 33 is passed through two opposite side walls of the fixed frame, wherein the driving member 31 can be selectively connected to the faceplate 32 and drive the faceplate 32 to rotate, that is, the faceplate 32 can be selectively detached from the driving member 31, and at the same time, the faceplate 32 is sleeved and fixed on the driving shaft 33, and when the driving member 31 drives the faceplate 32 to rotate, it drives the driving shaft 33 to rotate. The driving arm 34 is arranged on the circumference of the driving shaft 33 and is fixedly connected to the driving shaft 33. At the same time, the driving arm 34 is opposite to the knife switch 21. When the faceplate 32 rotates, the driving shaft 33 is driven to rotate, and then the driving arm 34 is rotated. The driving arm 34 can overlap the knife switch 21 and drive the knife switch 21 to rotate, so as to control the closing and opening states of the knife switch 21. In this embodiment, the driving shaft 33 rotates clockwise, and the knife switch 21 is closed. The driving shaft 33 rotates counterclockwise, and the knife switch 21 is opened.

[0037] The electric knife switch 21 provided in this embodiment drives the faceplate 32 to rotate through the driving member 31, so that the driving arm 34 arranged on the periphery of the driving shaft 33 rotates. When the driving arm 34 rotates, it will overlap with the knife switch 21 in the knife switch assembly 2. As the driving arm 34 rotates, it will drive the knife switch 21 to rotate, so as to realize the power-on state and power-off state of the knife switch 21. Since the driving member 31 can be selectively connected with the faceplate 32, when the control system of the electric knife switch 21 fails, the faceplate 32 can be separated from the driving member 31. At this time, the faceplate 32 is manually rotated to rotate the driving shaft 33, and then the driving arm 34 is rotated and overlapped with the knife switch 21 to drive the knife switch 21 to rotate, so as to control the power-on or power-off state of the knife switch 21. Even if the electric knife switch 21 fails, it can ensure that the equipment using the electric knife switch 21 can work normally, so that the production efficiency of the products processed by the equipment is guaranteed. Then, after the equipment completes the product processing, the electric knife switch 21 can be repaired, so that the electric knife switch 21 can be operated more flexibly.

[0038] In this embodiment, the faceplate 32 is sleeved on the outer periphery of the drive shaft 33 and is welded to the drive shaft 33, so that the faceplate 32 is sleeved and fixed on the drive shaft 33. In another embodiment, the faceplate 32 can also be sleeved on the outer periphery of the drive shaft 33 and snap-fitted with the drive shaft 33 to achieve mutual fixation between the two.

[0039] In this embodiment, the knife switch assembly 2 includes a connecting shaft and a plurality of knife switches 21, wherein the connecting shaft is penetrated through two opposite side walls of the main frame 1 and is parallel to the driving shaft 33, and the plurality of knife switches 21 are sleeved on the connecting shaft at intervals along the length direction of the connecting shaft, and the driving assembly 3 includes a plurality of driving arms 34, and the plurality of driving arms 34 are arranged corresponding to the plurality of knife switches 21, and the plurality of driving arms 34 are arranged at intervals along the circumference of the driving shaft 33. In this way, when the faceplate 32 rotates, the plurality of driving arms 34 can overlap with the plurality of knife switches 21 in sequence, so that the plurality of knife switches 21 rotate in sequence, and the plurality of knife switches 21 can correspond to the power-on or power-off of the plurality of components in the control device, so that the plurality of components in the device can be powered on or off in sequence. Preferably, the plurality of knife switches 21 are arranged at intervals on the connecting shaft, so the plurality of driving members 31 are arranged at intervals on the driving shaft 33, so that the design of the electric knife switch 21 is more reasonable. In this embodiment, the knife switch assembly 2 includes four knife switches 21, and correspondingly, the driving assembly 3 is provided with four driving arms 34. It is worth noting that the specific structure and working principle of the knife switch assembly 2 can be referred to the prior art and will not be elaborated herein.

[0040] Exemplarily, the driving member 31 includes a driving motor 311, a first gear 312, a second gear 313 and a rotating plate 314, wherein the driving motor 311 is placed on the inner wall at the top of the fixed frame, the second gear 313 is rotatably placed in the fixed frame close to the inner wall of the face disc 32 and opposite to the face disc 32, the driving motor 311 is drivingly connected to the first gear 312, the first gear 312 is meshed with the second gear 313, when the driving motor 311 drives the first gear 312 to rotate, it will drive the second gear 313 to rotate, the rotating plate 314 is placed on the side of the first gear 312 facing the face disc 32, a protruding column is provided on the rotating plate 314, a plurality of accommodating grooves 321 are provided on the circumferential surface of the face disc 32, when the driving motor 311 drives the first gear 312 to rotate, the protruding column can enter the accommodating groove 321 to rotate the face disc 32. When the first gear 312 rotates, the second gear 313 rotates with the first gear 312, and the rotating plate 314 rotates with the second gear 313. At this time, the protruding column enters the receiving groove 321, and the rotating plate 314 continues to rotate, which drives the face plate 32 to rotate. As the second gear 313 drives the rotating plate 314 to continue to rotate, the protruding column on the rotating plate 314 will sequentially enter the multiple receiving grooves 321 of the face plate 32, so that the face plate 32 can rotate continuously. When the protruding column on the rotating plate 314 is separated from the receiving groove 321 of the face plate 32, the face plate 32 can be manually rotated to control the rotation of the driving arm 34, thereby controlling the power-on or power-off state of the knife switch 21.

[0041] The protruding column can be detachably connected to the rotating plate 314. If the electric knife switch 21 fails, even if the protruding column is placed in the receiving groove 321, the protruding column and the connecting plate can be detached to ensure that the staff can manually control the state of the knife switch 21. For example, a mounting hole is provided on the connecting plate, the mounting hole is provided with an internal thread, and the protruding column is provided with an external thread. The protruding column can be assembled in the mounting hole by twisting the protruding column in the forward direction, and the protruding column can be taken out of the mounting hole by twisting the protruding column in the reverse direction.

[0042] For example, a first center hole is provided on the first gear 312, and the driving shaft 33 of the driving motor 311 is connected to the first gear 312 through the first center hole. A second center hole is provided on the second gear 313, and a mounting column is provided on the inner wall of the fixed frame near the faceplate 32. The second gear 313 is assembled with the mounting column through the second center hole and is rotatably placed on the inner wall of the fixed frame. The driving motor 311 can be a synchronous motor, a servo motor, or an asynchronous motor, and the type of the driving motor 311 is not specifically limited here.

[0043] Preferably, the rotating disk is placed at the center of the first gear 312 facing the faceplate 32, so that when the second gear 313 drives the connecting plate to rotate one circle, the faceplate 32 will rotate a fixed angle, and the drive shaft 33 will also rotate a fixed angle. Since the knife gate assembly 2 in this embodiment includes four knife gates 21, and the drive assembly 3 includes four drive arms 34, when the faceplate 32 rotates 90 degrees, the state of one knife gate 21 will change, that is, the component controlled by the knife gate 21 is powered on or off. In this way, it can be calculated how many times the second gear 313 rotates before the faceplate 32 can rotate 90 degrees to change the state of one knife gate 21. How many times the second gear 313 rotates, the faceplate 32 rotates one circle, and the states of the four knife gates 21 are changed. In this way, the number of turns of the second gear 313 can be calculated according to the angle that the faceplate 32 needs to rotate.

[0044] Preferably, the diameter of the second gear 313 is an integer multiple of the diameter of the first gear 312. In this way, when the second gear 313 rotates one circle, the first gear 312 needs to rotate a number of circles that is an integer multiple of the diameters of the two gears, which is convenient for calculating the number of circles of rotation of the drive shaft 33 of the drive motor 311. In this way, the number of circles of rotation of the drive shaft 33 of the drive motor 311 can be calculated based on the number of circles of rotation of the first gear 312, and the number of circles of rotation of the drive shaft 33 is an integer, which is convenient for controlling the drive motor 311.

[0045] In this embodiment, the electric knife switch 21 further includes a manual turntable 4, which is sleeved and fixed on the drive shaft 33 and spaced apart from the faceplate 32. Compared with the faceplate 32, the manual turntable 4 is more convenient to rotate manually, which reduces the difficulty of the staff to manually control the state of the knife switch 21. Preferably, a plurality of insertion slots 41 are provided at intervals in the circumferential direction of the manual turntable 4, and the electric knife switch 21 further includes a handle, which can be inserted into the insertion slot 41, so that it is more convenient for the staff to rotate the manual turntable 4.

[0046] In this embodiment, a lap groove 211 is provided at one end of the knife gate 21 facing the driving shaft 33, and a corresponding lap protrusion 341 is provided on the side of the driving arm 34. When the disc 32 drives the driving shaft 33 to rotate, the lap protrusion 341 can enter the lap groove 211 to rotate the knife gate 21. This can ensure that the driving arm 34 can drive the knife gate 21 to rotate after overlapping with the knife gate 21, thereby avoiding the problem that the driving arm 34 cannot rotate the knife gate 21 during the rotation process due to unstable overlapping. This further improves the accuracy of the electric knife gate 21 in controlling the open or closed state of the knife gate 21.

[0047] Embodiment 2

[0048] This embodiment provides a switch cabinet, including the electric knife switch 21 in the first embodiment. In this way, after the electric knife switch 21 used in the switch cabinet fails, the open or closed state of the knife switch 21 in the electric knife switch 21 can still be controlled manually, so that the switch cabinet can work normally.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An electric knife switch, characterized in that: include: A main frame (1) and a fixed frame, wherein the fixed frame is opposite to the main frame (1) and is fixedly connected to the main frame (1); A knife switch assembly (2) is disposed in the main frame (1), and the knife switch assembly (2) comprises a knife switch (21); The driving assembly (3) comprises a driving member (31), a faceplate (32), a driving shaft (33) and a driving arm (34); the driving member (31) is disposed on the fixed frame; the driving shaft (33) is passed through two opposite side walls of the fixed frame; the driving member (31) can be selectively connected with the faceplate (32) and drive the faceplate (32) to rotate; the faceplate (32) is sleeved and fixed on the driving shaft (33); the driving arm (34) is disposed on the circumference of the driving shaft (33) and is fixedly connected to the driving shaft (33); the driving arm (34) is opposite to the knife switch (21); when the faceplate (32) rotates, the driving arm (34) can overlap with the knife switch (21) and drive the knife switch (21) to rotate.

2. The electric knife switch according to claim 1, characterized in that: The knife gate assembly (2) comprises a connecting shaft and a plurality of knife gates (21), wherein the connecting shaft passes through two opposite side walls of the main frame (1) and is parallel to the driving shaft (33), and the plurality of knife gates (21) are sleeved on the connecting shaft at intervals along the length direction of the connecting shaft, and the driving assembly (3) comprises a plurality of driving arms (34), wherein the plurality of driving arms (34) are arranged corresponding to the plurality of knife gates (21), and the plurality of driving arms (34) are arranged at intervals along the circumference of the driving shaft (33).

3. The electric knife switch according to claim 2, characterized in that: A plurality of driving arms (34) are arranged at intervals along the circumference of the driving shaft (33).

4. The electric knife switch according to claim 3, characterized in that: The driving member (31) comprises a driving motor (311), a first gear (312), a second gear (313) and a rotating plate (314); the second gear (313) is rotatably disposed in the fixed frame close to the inner wall of the face disc (32) and opposite to the face disc (32); the driving motor (311) is connected to the first gear (312); the second gear (313) is meshed with the first gear (312); the rotating plate (314) is disposed on a side of the second gear (313) facing the face disc (32); the rotating plate (314) is provided with a protruding column; a plurality of accommodating grooves (321) are spaced apart on the circumference of the face disc (32); when the driving motor (311) drives the first gear (312) to rotate, the protruding column can enter the accommodating groove (321) to rotate the face disc (32).

5. The electric knife switch according to claim 4, characterized in that: The rotating plate (314) is placed at the center of a side of the second gear (313) facing the faceplate (32).

6. The electric knife switch according to claim 5, characterized in that: The diameter of the second gear (313) is an integer multiple of the diameter of the first gear (312).

7. The electric knife switch according to claim 1, characterized in that: The electric knife switch also includes a manual turntable (4), which is sleeved and fixed on the drive shaft (33) and spaced apart from the faceplate (32).

8. The electric knife switch according to claim 7, characterized in that: The circumferential surface of the manual turntable (4) is provided with a plurality of insertion slots (41) at intervals, and the electric knife switch further comprises a handle, and the handle can be inserted into the insertion slots (41).

9. The electric knife switch according to claim 1, characterized in that: The knife switch (21) is provided with a lap groove (211) at one end facing the drive shaft (33), and a lap protrusion (341) is correspondingly provided on the side of the drive arm (34); when the face plate (32) drives the drive shaft (33) to rotate, the lap protrusion (341) can enter the lap groove (211) to rotate the knife switch (21).

10. A switch cabinet, characterized in that: It comprises an electric knife switch as described in any one of claims 1 to 9.

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