Portable PLC control terminal

Abstract

The utility model relates to the technical field of portable PLC control terminals, and discloses a portable PLC control terminal, which comprises a control terminal body, an anti-falling mechanism is arranged above the control terminal body, the anti-falling mechanism comprises a rectangular plate, the bottom surface of the rectangular plate is fixedly connected with the upper surface of the control terminal body, and the bottom surface of the rectangular plate is fixedly connected with the upper surface of the control terminal body. The inner bottom wall of the rectangular plate is fixedly connected with a controller, the inner wall of the rectangular plate is rotatably connected with a short shaft, the top end of the short shaft is fixedly connected with a rotating plate, the bottom surface of the rotating plate is fixedly connected with a laser transmitter, the upper surface of the rectangular plate is fixedly connected with a signal lamp, and the front surface of the control terminal body is fixedly connected with two groups of fixing plates. According to the portable PLC control terminal, when the limiting plate is perpendicular to the control terminal body, the power supply connecting line can be limited, under the combined action of the laser transmitter and the laser receiver, whether the limiting plate limits the power supply connector or not can be monitored, and the problem that the power supply connecting line falls off due to unforeseen circumstances can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of portable PLC control terminals, and specifically relates to a portable PLC control terminal. Background Technique

[0002] A portable PLC control terminal is a device used in conjunction with a PLC controller. It provides a human-machine interface that allows an operator to monitor and control the PLC system. The control terminal can be a touch screen, buttons, indicator lights, and display screens, etc. They are usually installed in a control room or a place easily accessible to the operator. Through the control terminal, the user can directly interact with the PLC system to perform operations such as starting, stopping the program, monitoring process variables, and adjusting settings.

[0003] Currently, when the existing portable PLC control terminal is in use, it does not have a function to prevent wire connection from falling off. Since the PLC control terminal needs to be continuously connected to the power supply during use, if a power failure occurs, it may lead to problems such as data loss, program errors, and affecting the normal operation of the system.

[0004] Therefore, those skilled in the art have provided a portable PLC control terminal to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to provide a portable PLC control terminal to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A portable PLC control terminal includes a control terminal body, and a falling prevention mechanism is arranged above the control terminal body;

[0008] The falling prevention mechanism includes a rectangular plate, the bottom surface of the rectangular plate is fixedly connected to the upper surface of the control terminal body, a controller is fixedly connected to the inner bottom wall of the rectangular plate, a short shaft is rotatably connected to the inner wall of the rectangular plate, a rotating plate is fixedly connected to the top end of the short shaft, a laser emitter is fixedly connected to the bottom surface of the rotating plate, a signal lamp is fixedly connected to the upper surface of the rectangular plate, two groups of fixing plates are fixedly connected to the front surface of the control terminal body, a long shaft is rotatably connected to the inner wall of each group of fixing plates, a limiting plate is fixedly connected to the outer surface of each long shaft, a support plate is fixedly connected to the front surface of the control terminal body, and a laser receiver is fixedly connected to the upper surface of the support plate.

[0009] As a further scheme of the utility model: Two first blocks are clamped inside the rectangular plate, a baffle is jointly clamped at the top ends of the two first blocks, and the bottom surface of the baffle is in contact with the upper surface of the rectangular plate.

[0010] As a further solution of the utility model: a dehumidification box is fixedly connected to the left side of the control terminal body, a cross plate is fixedly connected to the inner wall of the dehumidification box, and a fan is fixedly connected to the back of the cross plate.

[0011] As a further solution of the utility model: two limiting shafts are rotatably connected to the inner wall of the dehumidification box, and a limiting plate is fixedly connected to each end of each limiting shaft away from the cross plate.

[0012] As a further solution of the utility model: an activated carbon plate is arranged inside the dehumidification box, and the front surface of the activated carbon plate is respectively in contact with the back surfaces of the two limiting plates.

[0013] As a further solution of the utility model: two second clamping blocks are clamped inside the rectangular plate, a protection frame is fixedly connected to the ends of the two second clamping blocks away from the limiting plate, and the bottom surface of the protection frame is in contact with the upper surface of the control terminal body.

[0014] As a further solution of the utility model: two connectors are clamped inside the control terminal body, a wire is fixedly connected to the front surface of each connector, and the front surface of each connector is in contact with the back surface of the limiting plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By setting a limiting plate, the limiting plate can rotate under the combined action of the long shaft and the fixed plate, so as to drive the limiting plate to flip. When the limiting plate flips to a state parallel to the control terminal body, the power connection line can be inserted into the control terminal body. When the limiting plate is perpendicular to the control terminal body, the power connection line can be limited to prevent it from falling off. And under the combined action of the laser emitter and the laser receiver, it can be monitored whether the limiting plate limits the power connector, thereby avoiding the problem of the power connection line falling off due to accidental situations. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of a portable PLC control terminal;

[0018] Figure 2 It is a three-dimensional structure diagram of the activated carbon plate in a portable PLC control terminal;

[0019] Figure 3 It is a three-dimensional structure diagram of the controller in a portable PLC control terminal;

[0020] Figure 4It is a schematic three-dimensional structure diagram of a laser receiver in a portable PLC control terminal.

[0021] In the figure: 1, control terminal body; 2, anti-falling mechanism; 201, controller; 202, short shaft; 203, laser emitter; 204, rectangular plate; 205, signal lamp; 206, rotating plate; 207, long shaft; 208, limiting plate; 209, fixing plate; 210, support plate; 211, laser receiver; 3, protective frame; 4, dehumidification box; 5, limiting plate; 6, activated carbon plate; 7, limiting shaft; 8, fan; 9, cross plate; 10, baffle; 11, first clamping block; 12, second clamping block; 13, connector; 14, conducting wire. Specific implementation manner

[0022] Please refer to Figures 1-4 , a portable PLC control terminal, including a control terminal body 1, an anti-falling mechanism 2 is arranged above the control terminal body 1, the anti-falling mechanism 2 includes a rectangular plate 204, two first clamping blocks 11 are clamped inside the rectangular plate 204, the tops of the two first clamping blocks 11 are jointly clamped with a baffle 10, and the bottom surface of the baffle 10 is in contact with the upper surface of the rectangular plate 204. By arranging the first clamping block 11, the baffle 10 can be fixed by the first clamping block 11, and there is a clamping relationship between the first clamping block 11 and the rectangular plate 204, so that the baffle 10 can be restricted above the rectangular plate 204 to protect the electronic components inside the rectangular plate 204.

[0023] The bottom surface of the rectangular plate 204 is fixedly connected to the upper surface of the control terminal body 1, the inner bottom wall of the rectangular plate 204 is fixedly connected with a controller 201, the left side surface of the control terminal body 1 is fixedly connected with a dehumidification box 4, a cross plate 9 is fixedly connected to the inner wall of the dehumidification box 4, and a fan 8 is fixedly connected to the back surface of the cross plate 9. By arranging the dehumidification box 4, the cross plate 9 and the fan 8, the fan 8 can be fixed by the cross plate 9, and the operation of the fan 8 can drive the outside air into the dehumidification box 4. The air will enter the control terminal body 1 through the air inlet of the control terminal body 1 and finally be discharged through the air outlet, so that the hot air inside the control terminal body 1 can be taken out to achieve the purpose of cooling. Here, the air inlet and the air outlet are both self-contained structures on the control terminal body 1 and are already very mature, so they are not described in detail.

[0024] The inner wall of the rectangular plate 204 is rotatably connected with a short shaft 202, the top of the short shaft 202 is fixedly connected with a rotating plate 206, the inner wall of the dehumidification box 4 is rotatably connected with two limiting shafts 7, and a limiting plate 5 is fixedly connected to each end of each limiting shaft 7 away from the cross plate 9. By arranging the limiting shaft 7 and the limiting plate 5, the position of the limiting plate 5 can be adjusted by rotating the limiting shaft 7 inside the dehumidification box 4, so as to determine whether the limiting plate 5 plays a limiting function.

[0025] A laser emitter 203 is fixedly connected to the bottom surface of the rotating plate 206, a signal lamp 205 is fixedly connected to the upper surface of the rectangular plate 204, two fixed plates 209 are fixedly connected to the front surface of the control terminal body 1, an activated carbon plate 6 is arranged inside the dehumidification frame 4, and the front surface of the activated carbon plate 6 is respectively in contact with the back surfaces of the two limiting plates 5. By arranging the activated carbon plate 6, the moisture in the external air can be adsorbed by the activated carbon plate 6, thereby reducing the influence of moisture on the control terminal body 1.

[0026] A long shaft 207 is rotatably connected to the inner walls of each group of fixed plates 209, a limiting plate 208 is fixedly connected to the outer surface of each long shaft 207, a support plate 210 is fixedly connected to the front surface of the control terminal body 1, two second clamping blocks 12 are clamped inside the rectangular plate 204, and a protective frame 3 is fixedly connected to one end of the two second clamping blocks 12 away from the limiting plate 208. The bottom surface of the protective frame 3 is in contact with the upper surface of the control terminal body 1. By arranging the protective frame 3 and the second clamping blocks 12, the protective frame 3 can be fixed above the control terminal body 1 through the second clamping blocks 12, so as to protect the display screen on the control terminal body 1.

[0027] A laser receiver 211 is fixedly connected to the upper surface of the support plate 210, two connectors 13 are clamped inside the control terminal body 1, a conducting wire 14 is fixedly connected to the front surface of each connector 13, and the front surface of each connector 13 is in contact with the back surface of the limiting plate 208. By arranging the connectors 13 and the conducting wires 14, the electric quantity can be transmitted into the control terminal body 1 by using the connectors 13 and the conducting wires 14, thereby ensuring the normal operation of the control terminal body 1.

[0028] The working principle of the present utility model is as follows: When in use, it should be understood that the controller 201 is electrically connected to the laser emitter 203, the laser receiver 211, the signal lamp 205 and the fan 8 through wires. When the connector 13 needs to be connected to the control terminal body 1, first apply power to the limit plate 208. The limit plate 208 rotates around the long axis 207 under the combined action of the long axis 207 and the fixed plate 209, so as to drive the limit plate 208 to flip. When the limit plate 208 flips to a state parallel to the control terminal body 1, the connector 13 can be inserted into the interior of the control terminal body 1. At this time, the signal emitted by the laser emitter 203 will be directly received by the laser receiver 211 without being blocked by the limit plate 208. Therefore, the laser receiver 211 will transmit an electrical signal to the controller 201 through the wire, and the controller 201 also controls the signal lamp 205 to emit light through the wire, so as to send a signal to the staff that the limit plate 208 does not limit the connector 13. Subsequently, rotate the limit plate 208 again to make the limit plate 208 perpendicular to the control terminal body 1, so as to limit the power connection wire. And at this time, the laser signal emitted by the laser emitter 203 will be intercepted by the limit plate 208. At this time, the laser receiver 211 will not receive the laser signal. After a series of electrical signal transmissions, the signal lamp 205 can be controlled to go out. Thus, it can be monitored whether the limit plate 208 limits the connector 13, so as to avoid the problem of the power connector 13 falling off due to unexpected situations.

[0029] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A portable PLC control terminal, comprising a control terminal body (1), characterized in that: Above the control terminal body (1), a falling prevention mechanism (2) is provided; The falling prevention mechanism (2) includes a rectangular plate (204). The bottom surface of the rectangular plate (204) is fixedly connected to the upper surface of the control terminal body (1). A controller (201) is fixedly connected to the inner bottom wall of the rectangular plate (204). A short shaft (202) is rotatably connected to the inner wall of the rectangular plate (204). The top end of the short shaft (202) is fixedly connected to a rotating plate (206). A laser emitter (203) is fixedly connected to the bottom surface of the rotating plate (206). A signal lamp (205) is fixedly connected to the upper surface of the rectangular plate (204). Two groups of fixing plates (209) are fixedly connected to the front surface of the control terminal body (1). A long shaft (207) is rotatably connected to the inner walls of each group of fixing plates (209). A limiting plate (208) is fixedly connected to the outer surface of each long shaft (207). A support plate (210) is fixedly connected to the front surface of the control terminal body (1). A laser receiver (211) is fixedly connected to the upper surface of the support plate (210).

2. The portable PLC control terminal according to claim 1, characterized in that: Two first clamping blocks (11) are clamped inside the rectangular plate (204). The top ends of the two first clamping blocks (11) are jointly clamped with a baffle (10). The bottom surface of the baffle (10) is in contact with the upper surface of the rectangular plate (204).

3. A portable PLC control terminal according to claim 1, characterized in that: A dehumidification frame (4) is fixedly connected to the left side surface of the control terminal body (1). A cross plate (9) is fixedly connected to the inner wall of the dehumidification frame (4). A fan (8) is fixedly connected to the back surface of the cross plate (9).

4. The portable PLC control terminal according to claim 3, characterized in that: Two limiting shafts (7) are rotatably connected to the inner wall of the dehumidification frame (4). A limiting plate (5) is fixedly connected to one end of each limiting shaft (7) away from the cross plate (9).

5. A portable PLC control terminal according to claim 4, characterized in that: An activated carbon plate (6) is arranged inside the dehumidification frame (4). The front surface of the activated carbon plate (6) is in contact with the back surfaces of the two limiting plates (5) respectively.

6. A portable PLC control terminal according to claim 1, characterized in that: Two second clamping blocks (12) are clamped inside the rectangular plate (204). One end of the two second clamping blocks (12) away from the limiting plate (208) is jointly fixedly connected to a protection frame (3). The bottom surface of the protection frame (3) is in contact with the upper surface of the control terminal body (1).

7. A portable PLC control terminal according to claim 1, characterized in that: Two connectors (13) are clamped inside the control terminal body (1). A wire (14) is fixedly connected to the front surface of each connector (13). The front surface of each connector (13) is in contact with the back surface of the limiting plate (208).

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