Load switch cabinet interlocking device

Abstract

The utility model discloses a load switch cabinet interlocking device which comprises a switch cabinet, a load switch is installed in the switch cabinet, a controller is arranged on the left side of the switch cabinet, a cabinet door is arranged on the front side of the switch cabinet, and the two sides of the interior of the switch cabinet are connected with the cabinet door through opening and closing mechanisms. A driving mechanism is installed at the top end of the switch cabinet, and a first reset switch and a second reset switch are installed at the left-right symmetrical positions of the back of the switch cabinet respectively. According to the utility model, through the arrangement of the opening and closing mechanism, the cabinet door is convenient to open or close, when the interior of the switch cabinet needs to be maintained, the controller controls the driving mechanism to work, and the first reset switch and the second reset switch are pressed respectively, so that the opening and closing mechanism can be started and closed, and the load switch can be powered on and powered off; the safety is improved, the requirements of workers are met, accidents are avoided, and the practicability of the device is also improved.

Description

Technical Field

[0001] The utility model relates to the field of load switches, in particular to an interlocking device for a load switch cabinet. Background Art

[0002] A load switch is a switching device between a circuit breaker and an isolating switch. It has a simple arc extinguishing device and can cut off the rated load current and a certain overload current, but cannot cut off the short-circuit current. Load switches are generally installed inside switch cabinets, and most switch cabinets use mechanical interlocking devices.

[0003] The utility model with the existing authorization application number CN201110259692.8 discloses a mechanical interlocking device for a switch cabinet. Although the device has a simple structure, is easy to install, has strong interlocking reliability, and is not prone to misoperation, the above device can only realize the installation of the switch cabinet and increase the interlocking reliability, but the function is relatively single. When the mechanical interlocking device is opened by a handle to repair the inside of the switch cabinet, the maintenance personnel first open the isolating switch to cut off the power, and then open the cabinet door to perform maintenance work. However, it often happens that the maintenance personnel forget to open the isolating switch and start to maintain the electrical parts inside the switch cabinet without cutting off the power, which is easy to cause accidents. Utility Model Content

[0004] In order to solve the above technical problems, a load switch cabinet interlocking device is provided. This technical solution solves the problem raised in the above background technology that maintenance personnel often forget to open the isolating switch and start maintenance work on the electrical parts inside the switch cabinet without cutting off the power, which can easily cause accidents.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A load switch cabinet interlocking device comprises a switch cabinet, wherein a load switch is installed inside the switch cabinet, a controller is arranged on the left side of the switch cabinet, a cabinet door is arranged on the front side of the switch cabinet, and both sides inside the switch cabinet are connected to the cabinet door through an opening and closing mechanism, a driving mechanism is installed on the top of the switch cabinet, and a first reset switch and a second reset switch are respectively installed at left and right symmetrical positions on the back of the switch cabinet.

[0007] Preferably, the opening and closing mechanism includes a first connecting seat, and the first connecting seat is fixedly installed on both sides of the interior of the switch cabinet by bolts, and an electric push rod is rotatably connected to the interior of the first connecting seat, and the output end of the electric push rod is rotatably connected to the first connecting arm, and the other end of the first connecting arm is rotatably connected to the second connecting arm, and the other end of the second connecting arm is rotatably connected to the interior of the second connecting seat, and the second connecting seat is fixedly installed on the inner side of the cabinet door.

[0008] Preferably, a fixing plate is also installed on the inner side of the cabinet door, a limiting strip is installed on the inner side of the fixing plate, both sides of the top of the switch cabinet are fixedly connected with a fixing seat, a rotating roller is rotatably connected inside the fixing seat, a limiting groove is provided on the rotating roller, and the limiting strip is slidably connected to the inside of the limiting groove.

[0009] Preferably, the driving mechanism includes a connecting plate, which is provided in two groups and is respectively fixedly installed on both sides of the top of the switch cabinet, a guide rod is fixedly installed between the two groups of connecting plates, a dual-axis motor is fixedly connected to the top of the switch cabinet, and both output ends of the dual-axis motor are fixedly connected to a screw rod.

[0010] Preferably, the outer surface of one group of the screw rods is threadedly connected to a first movable plate, and the outer surface of another group of the screw rods is threadedly connected to a second movable plate, and the first movable plate and the second movable plate are both slidably connected to the outer surface of the guide rod.

[0011] Preferably, the first reset switch is electrically connected to the electric push rod, and the second reset switch is electrically connected to the load switch.

[0012] Compared with the prior art, the utility model provides a load switch cabinet interlocking device, which has the following beneficial effects:

[0013] 1. The utility model is provided with an opening and closing mechanism, which controls the extension or retraction of the output end of the electric push rod to rotate the first connecting arm, and then the second connecting arm rotates, so that the cabinet door rotates to present an open or closed state. At the same time, the rotating roller also maintains a rotating state, and the limit strip slides inside the limit groove.

[0014] 2. The utility model is secondly provided with a driving mechanism. When the switch cabinet needs to be repaired, first the right output end of the double-axis motor drives the second movable plate away from the second reset switch, and the load switch is powered off. Then the left output end of the double-axis motor drives the first movable plate to press the first reset switch, so that the opening and closing mechanism can be started and the cabinet door can be opened, thereby facilitating maintenance for the staff, improving safety and avoiding accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the back of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the opening and closing mechanism in the utility model;

[0018] Figure 4 For the utility model Figure 3 Schematic diagram of the proposed enlarged structure at A.

[0019] The numbers in the figure are:

[0020] 1. Switch cabinet; 101. Load switch; 102. Controller; 103. Cabinet door; 104. First reset switch; 105. Second reset switch; 2. Opening and closing mechanism; 201. First connecting seat; 202. Electric push rod; 203. First connecting arm; 204. Second connecting arm; 205. Second connecting seat; 206. Fixed plate; 207. Limiting strip; 208. Fixed seat; 209. Rotating roller; 210. Limiting groove; 3. Driving mechanism; 301. Connecting plate; 302. Guide rod; 303. Dual-axis motor; 304. Screw rod; 305. First movable plate; 306. Second movable plate. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] Example 1

[0023] Please refer to Figure 1-4 As shown, a load switch cabinet interlocking device includes a switch cabinet 1, a load switch 101 is installed inside the switch cabinet 1, a controller 102 is arranged on the left side of the switch cabinet 1, a cabinet door 103 is arranged on the front side of the switch cabinet 1, and the two sides inside the switch cabinet 1 are connected to the cabinet door 103 through an opening and closing mechanism 2, a driving mechanism 3 is installed on the top of the switch cabinet 1, and a first reset switch 104 and a second reset switch 105 are respectively installed at left and right symmetrical positions on the back of the switch cabinet 1, and the first reset switch 104 is electrically connected to the electric push rod 202, and the second reset switch 105 is electrically connected to the load switch 101.

[0024] In this solution, an opening and closing mechanism 2 is provided to facilitate opening or closing the cabinet door 103. When the inside of the switch cabinet 1 needs to be inspected and repaired, the controller 102 controls the driving mechanism 3 to work, and presses the first reset switch 104 and the second reset switch 105 respectively, so that the opening and closing mechanism 2 can be started and closed, and the load switch 101 can be powered on and off, thereby improving safety, meeting the needs of staff, avoiding accidents, and to a certain extent, improving the practicability of the device.

[0025] Example 2

[0026] Please refer to Figure 3-4As shown, the opening and closing mechanism 2 includes a first connecting seat 201, and the first connecting seat 201 is fixedly installed on both sides of the interior of the switch cabinet 1 by bolts. The interior of the first connecting seat 201 is rotatably connected to an electric push rod 202, and the output end of the electric push rod 202 is rotatably connected to the first connecting arm 203, and the other end of the first connecting arm 203 is rotatably connected to the second connecting arm 204, and the other end of the second connecting arm 204 is rotatably connected to the interior of the second connecting seat 205, and the second connecting seat 205 is fixedly installed on the inner side of the cabinet door 103.

[0027] Please refer to Figure 3-4 As shown, a fixing plate 206 is also installed on the inner side of the cabinet door 103, and a limiting strip 207 is installed on the inner side of the fixing plate 206. A fixing seat 208 is fixedly connected to both sides of the top of the switch cabinet 1. A rotating roller 209 is rotatably connected inside the fixing seat 208. A limiting groove 210 is provided on the rotating roller 209, and the limiting strip 207 is slidably connected to the inside of the limiting groove 210.

[0028] In this solution, the working principle of the opening and closing mechanism 2 is as follows: Figure 4 It can be seen that there is a pin shaft on the inner side of the switch cabinet 1, on which there are a first connecting arm 203 and a second connecting arm 204, and the first connecting arm 203 and the second connecting arm 204 are both rotatably connected to the pin shaft, which is specifically manifested as follows: by controlling the extension or retraction of the output end of the electric push rod 202, the first connecting arm 203 rotates, and then the second connecting arm 204 rotates, so that the cabinet door 103 rotates and presents an open or closed state. At the same time, the rotating roller 209 also maintains a rotating state, and the limit bar 207 slides inside the limit groove 210.

[0029] Example 3

[0030] Please refer to Figure 2 As shown, the driving mechanism 3 includes a connecting plate 301, two groups of connecting plates 301 are provided and are fixedly installed on both sides of the top of the switch cabinet 1, a guide rod 302 is fixedly installed between the two groups of connecting plates 301, a dual-axis motor 303 is fixedly connected to the top of the switch cabinet 1, and both output ends of the dual-axis motor 303 are fixedly connected to a screw rod 304.

[0031] Please refer to Figure 2 As shown, the outer surface of one group of screw rods 304 is threadedly connected to the first movable plate 305, and the outer surface of another group of screw rods 304 is threadedly connected to the second movable plate 306. The first movable plate 305 and the second movable plate 306 are both slidably connected to the outer surface of the guide rod 302.

[0032] In this solution, the two output ends of the dual-axis motor 303 can drive the screw rods 304 on both sides to rotate, so that the first movable plate 305 or the second movable plate 306 moves; and the two output ends of the dual-axis motor 303 can be driven separately. When the load switch 101 remains powered on, the right output end of the dual-axis motor 303 drives the screw rod 304 to rotate, and then the second movable plate 306 moves to press the second reset switch 105, and the load switch 101 works and is powered on. When the switch cabinet 1 needs to be repaired, first the right output end of the dual-axis motor 303 drives the second movable plate 306 away from the second reset switch 105, and the load switch 101 is powered off. Then the left output end of the dual-axis motor 303 drives the first movable plate 305 to press the first reset switch 104, so that the opening and closing mechanism 2 can be started to work and the cabinet door 103 can be controlled to open, thereby facilitating maintenance by the staff.

[0033] Working principle and use process of the device: The utility model is provided with an opening and closing mechanism 2, which is convenient for opening or closing the cabinet door 103. When the inside of the switch cabinet 1 needs to be inspected and repaired, the controller 102 controls the driving mechanism 3 to work, and presses the first reset switch 104 and the second reset switch 105 respectively, so that the opening and closing mechanism 2 can be started and closed, and the load switch 101 can be powered on and off, which improves safety, meets the needs of staff, avoids accidents, and to a certain extent, improves the practicability of the device.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A load switch cabinet interlocking device, characterized in that: The invention comprises a switch cabinet (1), wherein a load switch (101) is installed inside the switch cabinet (1), a controller (102) is arranged on the left side of the switch cabinet (1), a cabinet door (103) is arranged on the front side of the switch cabinet (1), and the two sides inside the switch cabinet (1) are connected to the cabinet door (103) through an opening and closing mechanism (2), a driving mechanism (3) is installed on the top of the switch cabinet (1), and a first reset switch (104) and a second reset switch (105) are respectively installed at left and right symmetrical positions on the back of the switch cabinet (1).

2. A load switch cabinet interlocking device according to claim 1, characterized in that: The opening and closing mechanism (2) comprises a first connecting seat (201), the first connecting seat (201) is fixedly installed on both sides of the switch cabinet (1) by bolts, the first connecting seat (201) is rotatably connected to the inside of an electric push rod (202), the output end of the electric push rod (202) is rotatably connected to a first connecting arm (203), and the other end of the first connecting arm (203) is rotatably connected to a second connecting arm (204), the other end of the second connecting arm (204) is rotatably connected to the inside of a second connecting seat (205), and the second connecting seat (205) is fixedly installed on the inner side of the cabinet door (103).

3. A load switch cabinet interlocking device according to claim 2, characterized in that: A fixing plate (206) is also installed on the inner side of the cabinet door (103), and a limiting strip (207) is installed on the inner side of the fixing plate (206). Both sides of the top of the switch cabinet (1) are fixedly connected to fixing seats (208), and a rotating roller (209) is rotatably connected inside the fixing seat (208). A limiting groove (210) is provided on the rotating roller (209), and the limiting strip (207) is slidably connected to the inside of the limiting groove (210).

4. The load switch cabinet interlocking device according to claim 1 is characterized in that: The driving mechanism (3) comprises a connecting plate (301), wherein two groups of the connecting plates (301) are provided and are respectively fixedly mounted on both sides of the top of the switch cabinet (1), a guide rod (302) is fixedly mounted between the two groups of the connecting plates (301), a dual-axis motor (303) is fixedly connected to the top of the switch cabinet (1), and both output ends of the dual-axis motor (303) are fixedly connected to a lead screw (304).

5. A load switch cabinet interlocking device according to claim 4, characterized in that: The outer surface of one group of the screw rods (304) is threadedly connected to a first movable plate (305), and the outer surface of another group of the screw rods (304) is threadedly connected to a second movable plate (306). The first movable plate (305) and the second movable plate (306) are both slidably connected to the outer surface of the guide rod (302).

6. A load switch cabinet interlocking device according to claim 2, characterized in that: The first reset switch (104) is electrically connected to the electric push rod (202), and the second reset switch (105) is electrically connected to the load switch (101).

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