Installation alarm device for operation short circuit of PLC (Programmable Logic Controller) control cabinet
By designing a short-circuit installation alarm device in the PLC control cabinet, and using the cooperation of plywood, connecting rods and alarms, the problem of lack of warning reminders when the PLC control cabinet is short-circuited is solved, achieving timely reminders and improving work efficiency.
Patent Information
- Application Number
- CN202420981181.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-20
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The PLC control cabinet may have a short circuit during operation, resulting in the current cut, but there is a lack of warnings and reminders, which will affect the staff's timely repair and work efficiency.
A PLC control cabinet operation short-circuit installation alarm device is designed, including air switch, installation mechanism, trigger mechanism and alarm mechanism. Through the cooperation of clamps, connecting rods and alarms, the current is automatically cut off and reminded immediately when a short circuit occurs. Staff.
Effectively remind staff to have short circuits in PLC control cabinets, ensuring timely maintenance, and improving work efficiency and simplicity of operation.
Smart Images
Figure CN222214085U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PLC control cabinets, in particular to an alarm device for short-circuit installation of a PLC control cabinet. Background Art
[0002] PLC control cabinet refers to a complete set of control cabinets, which can realize the electrical cabinet of motor and switch control. PLC control cabinet has functions such as overload, short circuit and phase loss protection. It has compact structure, stable operation and complete functions. It can be combined according to the actual control scale. It can realize single cabinet automatic control or multiple cabinets through industrial Ethernet or industrial field bus network to form a distributed control system (DSC). It can adapt to various industrial automation control occasions of different sizes and is widely used in electric power, metallurgy, chemical industry, papermaking, environmental protection and sewage treatment and other industries.
[0003] In the prior art, a short circuit may occur when the PLC control cabinet is in operation. For safety protection, an air switch is generally installed inside the PLC control cabinet. When a short circuit occurs, the air switch will be triggered to cut off the current. However, after the current is cut off, because there is no warning function, the staff may not find it at the first time, which will delay its timely maintenance and affect their work efficiency.
[0004] Therefore, a PLC control cabinet operation short circuit installation alarm device is proposed. Utility Model Content
[0005] The purpose of the utility model is to solve the problems raised in the above background technology and provide a PLC control cabinet operation short circuit installation alarm device.
[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:
[0007] A short-circuit installation alarm device for a PLC control cabinet comprises a PLC control cabinet body and a fixing plate, wherein an air switch is arranged inside the PLC control cabinet body, an installation mechanism for clamping and fixing is arranged on the fixing plate, and the installation mechanism is in contact with the air switch, a trigger mechanism for elastic pressing is arranged on the installation mechanism, and the trigger mechanism corresponds to the air switch, an alarm mechanism for reminding staff is arranged on one side of the fixing plate, and the alarm mechanism is arranged on one side of the PLC control cabinet body, the trigger mechanism corresponds to the alarm mechanism, and a battery for providing electric energy to the alarm mechanism is arranged on the top of the PLC control cabinet body.
[0008] Furthermore, the mounting mechanism includes two long plates, and the two long plates are installed on a fixed plate, four connecting blocks are installed on the rear side of the fixed plate, a bidirectional screw is rotatably installed between the two upper connecting blocks, a cylinder is installed between the two lower connecting blocks, two clamps are threadedly installed on the outer wall of the bidirectional screw, and the clamps are slidably installed on the outer wall of the cylinder.
[0009] Furthermore, friction pads are installed on one side of the two clamping plates close to the air switch, and the friction pads are in contact with the air switch.
[0010] Furthermore, a bevel gear 1 is installed on the outer wall of the bidirectional screw, a cross hole is penetrated through the front side of the fixed plate, a cross shaft is rotatably installed on the inner wall of the cross hole, a bevel gear 2 is installed on the rear side of the cross shaft, and bevel gear 1 is meshed with bevel gear 2, and a twist handle is installed on the front side of the cross shaft.
[0011] Furthermore, the trigger mechanism includes two fixed columns, and sliding grooves are opened on the opposite sides of the two long boards. The fixed columns are installed inside the sliding grooves. Springs are sleeved on the outer walls of the two fixed columns. A connecting rod is slidably installed on the outer walls of the two fixed columns. The connecting rod is slidably installed inside the two sliding grooves, and the connecting rod corresponds to the air switch.
[0012] Furthermore, the alarm mechanism includes a rectangular plate, which is installed on the front side of the fixed plate. A button switch is installed on the top of the rectangular plate, and the button switch corresponds to the connecting rod. An alarm is installed on the top of the PLC control cabinet body.
[0013] The beneficial effects of the utility model are as follows:
[0014] The utility model, through the arrangement of the clamping plate, the connecting rod and the alarm, etc., can position the fixed plate installed on the air switch through two long plates, and the twist handle is rotated to drive the cross shaft and the second bevel gear to rotate, and the second bevel gear will drive the first bevel gear to rotate, and the bidirectional screw will rotate accordingly, driving the two clamping plates to slide close to each other on the bidirectional screw and the cylinder, and the rubber friction pads on the two clamping plates are in close contact with the air switch, and the fixed plate is installed on the air switch, when a short circuit occurs during the operation of the PLC control cabinet body, the switch of the air switch will be triggered to cut off the current, and the switch of the air switch will move in an arc trajectory during the closing process, and the switch of the air switch will press down the connecting rod to make the connecting rod slide on the two fixed columns and compress the two springs, and the connecting rod triggers the switch of the button switch to start the alarm and remind the staff, so that when a short circuit occurs during the operation of the PLC control cabinet body, an alarm will be issued immediately to remind the staff, and the operation is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2 It is a schematic diagram of the internal structure of the PLC control cabinet body of the utility model;
[0017] Figure 3 It is a structural schematic diagram of the connecting rod of the utility model;
[0018] Figure 4 It is a structural schematic diagram of the bidirectional screw of the utility model;
[0019] Figure 5 It is a structural schematic diagram of the cross shaft of the utility model.
[0020] Figure numerals: 1. PLC control cabinet body; 2. air switch; 3. fixing plate; 4. mounting mechanism; 401. long plate; 402. connecting block; 403. bidirectional screw; 404. cylinder; 405. clamping plate; 406. bevel gear one; 407. cross hole; 408. cross shaft; 409. bevel gear two; 410. twist handle; 5. trigger mechanism; 501. slide groove; 502. fixing column; 503. spring; 504. connecting rod; 6. alarm mechanism; 601. rectangular plate; 602. push button switch; 603. alarm; 7. battery. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0023] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0024] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.
[0025] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0026] like Figure 1-5 As shown, a PLC control cabinet operation short circuit installation alarm device includes a PLC control cabinet body 1 and a fixing plate 3. An air switch 2 is arranged inside the PLC control cabinet body 1. The device is characterized in that a mounting mechanism 4 for clamping and fixing is arranged on the fixing plate 3, and the mounting mechanism 4 is in contact with the air switch 2. A trigger mechanism 5 for elastic pressing is arranged on the mounting mechanism 4, and the trigger mechanism 5 corresponds to the air switch 2. An alarm mechanism 6 for reminding staff is arranged on one side of the fixing plate 3, and the alarm mechanism 6 is arranged on one side of the PLC control cabinet body 1. The trigger mechanism 5 corresponds to the alarm mechanism 6. The top of the PLC control cabinet body 1 is provided with a trigger mechanism 5 for providing a trigger mechanism 5 for the alarm mechanism 6. The electric energy storage battery 7, in this embodiment, during use, the fixing plate 3 is installed and fixed on the air switch 2 by the mounting mechanism 4, and when a short circuit occurs during the operation of the PLC control cabinet body 1, the switch of the air switch 2 will be triggered to cut off the current, and the switch of the air switch 2 will move in an arc trajectory during the closing process, and will drive the trigger mechanism 5 to start the alarm mechanism 6 to remind the staff that the PLC control cabinet body 1 has a short circuit and needs timely maintenance. The power supply used by the alarm mechanism 6 is provided by the battery 7, so that when a short circuit occurs during the operation of the PLC control cabinet body 1, an alarm will be issued immediately to remind the staff, and the operation is simple and practical.
[0027] like Figure 2-5As shown, the mounting mechanism 4 includes two long plates 401, and the two long plates 401 are mounted on the fixed plate 3, four connecting blocks 402 are installed on the rear side of the fixed plate 3, a bidirectional screw 403 is rotatably mounted between the two upper connecting blocks 402, a cylinder 404 is installed between the two lower connecting blocks 402, two clamping plates 405 are threadedly mounted on the outer wall of the bidirectional screw 403, and the clamping plates 405 are slidably mounted on the outer wall of the cylinder 404. In this embodiment, the fixed plate 3 can be positioned on the air switch 2 by means of the two long plates 401. When the bidirectional screw 403 rotates, the two clamping plates 405 are driven to slide close to each other on the bidirectional screw 403 and the cylinder 404, thereby fixing the fixed plate 3 on the air switch 2.
[0028] like Figure 4-5 As shown, friction pads are installed on one side of the two clamping plates 405 close to the air switch 2, and the friction pads are in contact with the air switch 2. In this embodiment, by arranging rubber friction pads on the clamping plates 405, the friction resistance in contact with the side of the air switch 2 can be increased, thereby improving the stability of the fixation.
[0029] like Figure 3-5 As shown, a bevel gear 1 406 is installed on the outer wall of the bidirectional screw 403, a cross hole 407 is penetrated on the front side of the fixing plate 3, a cross shaft 408 is rotatably installed on the inner wall of the cross hole 407, a bevel gear 2 409 is installed on the rear side of the cross shaft 408, and the bevel gear 1 406 is meshed with the bevel gear 2 409, and a twist handle 410 is installed on the front side of the cross shaft 408. In this embodiment, by rotating the twist handle 410, the cross shaft 408 and the bevel gear 2 409 are driven to rotate, and the bevel gear 2 409 will drive the bevel gear 1 406 to rotate, and the bidirectional screw 403 rotates accordingly.
[0030] like Figure 2-3 As shown, the trigger mechanism 5 includes two fixed columns 502, and the opposite sides of the two long plates 401 are provided with sliding grooves 501. The fixed columns 502 are installed inside the sliding grooves 501. The outer walls of the two fixed columns 502 are sleeved with springs 503. A connecting rod 504 is slidably installed on the outer walls of the two fixed columns 502. The connecting rod 504 is slidably installed inside the two sliding grooves 501, and the connecting rod 504 corresponds to the air switch 2. In this embodiment, the switch of the air switch 2 will move in an arc trajectory during the closing process. The switch of the air switch 2 will press down the connecting rod 504, so that the connecting rod 504 slides on the two fixed columns 502 and compresses the two springs 503. When the switch of the air switch 2 is turned on, the connecting rod 504 is reset under the reset elastic force of the spring 503.
[0031] like Figure 1-3As shown, the alarm mechanism 6 includes a rectangular plate 601, which is installed on the front side of the fixed plate 3. A button switch 602 is installed on the top of the rectangular plate 601, and the button switch 602 corresponds to the connecting rod 504. An alarm 603 is installed on the top of the PLC control cabinet body 1. In this embodiment, when the connecting rod 504 moves downward, the button switch 602 is pressed to activate the alarm 603 to alert the staff.
[0032] In summary, in use, the fixing plate 3 is fixed on the air switch 2 through the mounting mechanism 4. When a short circuit occurs during the operation of the PLC control cabinet body 1, the switch of the air switch 2 will be triggered to cut off the current. During the closing process, the switch of the air switch 2 will move in an arc trajectory, and will drive the trigger mechanism 5 to start the alarm mechanism 6 to remind the staff that a short circuit occurs in the PLC control cabinet body 1 and needs to be repaired in time. The power supply used by the alarm mechanism 6 is provided by the battery 7, so that when a short circuit occurs during the operation of the PLC control cabinet body 1, an alarm will be issued immediately to remind the staff. The operation is simple and practical. The fixing plate 3 can be installed on the air switch 2 for positioning through two long plates 401. When the bidirectional screw 403 rotates, the two clamping plates 405 are driven to slide close to each other on the bidirectional screw 403 and the cylinder 404. The fixing plate 3 is fixed on the air switch 2, and a rubber friction pad is arranged on the clamping plate 405 to increase the friction resistance of the side contact with the air switch 2, thereby improving the stability of the fixation. By rotating the twist handle 410, the cross shaft 408 and the bevel gear 2 409 are driven to rotate, and the bevel gear 2 409 will drive the bevel gear 1 406 to rotate, and the bidirectional screw 403 will rotate accordingly. During the closing process, the switch of the air switch 2 will move in an arc trajectory. The switch of the air switch 2 will press down the connecting rod 504, so that the connecting rod 504 slides on the two fixed columns 502 and compresses the two springs 503. When the switch of the air switch 2 is turned on, the connecting rod 504 is reset under the reset elastic force of the spring 503. The connecting rod 504 moves downward, and the switch of the button switch 602 is pressed to start the alarm 603 to remind the staff.
[0033] 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 PLC control cabinet operation short circuit installation alarm device, comprising a PLC control cabinet body (1) and a fixing plate (3), wherein an air switch (2) is arranged inside the PLC control cabinet body (1), characterized in that: The fixing plate (3) is provided with a mounting mechanism (4) for clamping and fixing, and the mounting mechanism (4) is in contact with the air switch (2); the mounting mechanism (4) is provided with a trigger mechanism (5) for elastic pressing, and the trigger mechanism (5) corresponds to the air switch (2); one side of the fixing plate (3) is provided with an alarm mechanism (6) for reminding staff, and the alarm mechanism (6) is provided on one side of the PLC control cabinet body (1), the trigger mechanism (5) corresponds to the alarm mechanism (6), and a storage battery (7) for providing electric energy to the alarm mechanism (6) is provided on the top of the PLC control cabinet body (1).
2. A PLC control cabinet operation short circuit installation alarm device according to claim 1, characterized in that: The mounting mechanism (4) comprises two long plates (401), and the two long plates (401) are mounted on a fixed plate (3), four connecting blocks (402) are mounted on the rear side of the fixed plate (3), a bidirectional screw rod (403) is rotatably mounted between the two upper connecting blocks (402), a cylinder (404) is mounted between the two lower connecting blocks (402), two clamping plates (405) are threadedly mounted on the outer wall of the bidirectional screw rod (403), and the clamping plates (405) are slidably mounted on the outer wall of the cylinder (404).
3. A PLC control cabinet operation short circuit installation alarm device according to claim 2, characterized in that: A friction pad is installed on one side of the two clamping plates (405) close to the air switch (2), and the friction pad is in contact with the air switch (2).
4. A PLC control cabinet operation short circuit installation alarm device according to claim 2, characterized in that: A bevel gear 1 (406) is installed on the outer wall of the bidirectional screw (403), a cross hole (407) is passed through the front side of the fixing plate (3), a cross shaft (408) is rotatably installed on the inner wall of the cross hole (407), a bevel gear 2 (409) is installed on the rear side of the cross shaft (408), and the bevel gear 1 (406) is meshed with the bevel gear 2 (409), and a twist handle (410) is installed on the front side of the cross shaft (408).
5. A PLC control cabinet operation short circuit installation alarm device according to claim 2, characterized in that: The trigger mechanism (5) includes two fixed columns (502), and the two long plates (401) are provided with sliding grooves (501) on opposite sides. The fixed columns (502) are installed inside the sliding grooves (501), and the outer walls of the two fixed columns (502) are sleeved with springs (503). The outer walls of the two fixed columns (502) are slidably installed with connecting rods (504), and the connecting rods (504) are slidably installed inside the two sliding grooves (501), and the connecting rods (504) correspond to the air switch (2).
6. A PLC control cabinet operation short circuit installation alarm device according to claim 5, characterized in that: The alarm mechanism (6) comprises a rectangular plate (601), the rectangular plate (601) is mounted on the front side of the fixed plate (3), a button switch (602) is mounted on the top of the rectangular plate (601), and the button switch (602) corresponds to the connecting rod (504), and an alarm (603) is mounted on the top of the PLC control cabinet body (1).