An extensible PLC touch screen control box

Abstract

The utility model discloses an extensible PLC touch screen control box relates to control box technical field, including PLC control box main part, the front of PLC control box main part is equipped with the door, the top of door is equipped with the rectangular slot, the inside of rectangular slot is equipped with touch screen, both sides of touch screen back are all fixedly connected with transmission plate, the middle part of touch screen back is fixedly connected with the connecting column, both sides of door back are all installed with electric telescopic handle, the top of door front is fixedly connected with triangular block, both side walls of triangular block are all installed with light sensor, the utility model discloses an extensible PLC touch screen control box, through setting the triangular block on the door, the light sensor of both side walls of setting, cooperate the transmission plate of touch screen back and electric telescopic handle, can when one side illumination intensity is stronger, trigger and push touch screen to occur angle slightly inclination, like this avoids one side stronger light to directly irradiate on touch screen, thereby reduces the reflection condition of touch screen.

Description

Technical Field

[0001] This utility model relates to the field of control box technology, and in particular to an expandable PLC touch screen control box. Background Technology

[0002] The scalable PLC touch screen control box uses a PLC as the control hub and a touch screen as the human-machine interface. Through standardized interfaces and modular design, it supports the expansion of hardware (such as I / O modules and communication modules) and software (such as control programs and interface functions), making it suitable for industrial scenarios that require flexible adjustment of control logic.

[0003] When existing PLC touch screen control boxes are assembled and used, there are many situations where the touch screen needs to be operated. However, due to the complex ambient lighting, the touch screen is prone to glare when directly exposed to light, which affects the operator's observation and operation, causing trouble. In addition, during the operation of the PLC touch screen control box, the high internal humidity can affect the normal use of electrical components. Some are equipped with dehumidification structures, but when not dehumidifying, the moisture can easily return to the inside of the box. Utility Model Content

[0004] The purpose of this invention is to provide an expandable PLC touch screen control box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an expandable PLC touch screen control box, comprising a PLC control box body, a box door installed on the front of the PLC control box body, a rectangular slot opened at the top of the box door, a touch screen installed inside the rectangular slot, transmission plates fixedly connected to both sides of the back of the touch screen, a connecting column fixedly connected to the middle of the back of the touch screen, electric telescopic rods installed on both sides of the back of the box door, a triangular block fixedly connected to the top of the front of the box door, light sensors installed on both side walls of the triangular block, and a controller installed at one corner of the back of the box door;

[0006] A drying chamber is installed at the bottom of one side wall of the PLC control box. A partition plate is fixedly connected to the inner wall of the drying chamber. Multiple drying filter cottons are installed between the partition plate and the inner wall of the drying chamber. An exhaust fan is installed on one side wall of the drying chamber. A humidity switch is installed on the side wall of the drying chamber located inside the PLC control box. An electromagnet is installed on one side inner wall of the drying chamber.

[0007] As a preferred embodiment of this utility model, a rectangular plate is fixedly connected to the middle of the back of the box door, and a rotating shaft is fixedly passed through the center of the connecting column, with the bottom end of the rotating shaft rotatably connected to the top end of the rectangular plate.

[0008] The above technical solution enables the touchscreen to rotate left and right at a certain angle.

[0009] As a preferred embodiment of this utility model, the output end of the electric telescopic rod is equipped with a universal joint, and the output end of the electric telescopic rod is connected to the transmission plate through the universal joint.

[0010] By using the above technical solution and by setting a universal joint, it can be ensured that the output end of the electric telescopic rod can normally drive the transmission plate to rotate.

[0011] As a preferred embodiment of this utility model, both light sensors are electrically connected to the controller, and both electric telescopic rods are electrically connected to the controller.

[0012] Through the above technical solution, the controller analyzes and processes the light signals detected by the two light sensors. When the light on one side is stronger, it will transmit the drive signal for the electric telescopic rod on the opposite side.

[0013] As a preferred embodiment of this utility model, a rectangular frame is fixedly connected to the inner wall of the rectangular groove, and an elastic filling pad is installed between the rectangular frame and the touch screen.

[0014] Through the above technical solution, the rectangular frame achieves rigid limiting installation, and the elastic filling pad is used to ensure that the stability of the touch screen is improved when it rotates at a certain angle.

[0015] As a preferred technical solution of this utility model, the drying box has multiple air outlets on one side wall inside the PLC control box, and a protective cover is provided on one side of each of the multiple air outlets. A transmission rod is fixedly connected to the back of each of the multiple protective covers.

[0016] Through the above technical solution, the protective cover can block multiple air outlets one by one, so that the gas inside the PLC control box and the gas inside the drying box will no longer be exchanged.

[0017] As a preferred embodiment of this utility model, the side wall of the transmission rod is slidably connected to the inner wall of one side of the drying oven, and a compression spring is installed between one end of the transmission rod and the electromagnet.

[0018] With the above technical solution, after the electromagnet loses its magnetism, the compression spring will reset multiple protective covers.

[0019] As a preferred embodiment of this utility model, both the electromagnet and the exhaust fan are electrically connected to the internal circuit of the PLC control box via a humidity switch. An air duct is installed at the air outlet of the exhaust fan, and one end of the air duct is fixedly connected to the side wall of the PLC control box.

[0020] Through the above technical solution, the humidity switch synchronously triggers the electromagnet and exhaust fan, and the air duct guides the filtered dry gas back into the main body of the PLC control box.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model, by setting a triangular block on the door, with light sensors on both sides, together with the transmission plate on the back of the touch screen and the electric telescopic rod, can trigger the touch screen to tilt slightly when the light intensity on one side is strong. This avoids strong light from directly shining on the touch screen, thus reducing the reflection of the touch screen and making it easier for the operator to operate. The light sensors on both sides can adjust the flexible micro-rotation adjustment of the touch screen left and right, always avoiding direct light and reducing reflection.

[0023] 2. This utility model features a drying chamber on one side wall of the PLC control box body. Its internal circular path, combined with multiple drying filter cottons, extracts moisture from inside the PLC control box body, performs thorough drying and filtration, and then guides it back into the PLC control box body via a duct. Drying gas is blown from top to bottom, further encouraging humid gas to enter the drying chamber through the air outlet for processing. Multiple protective covers, along with a transmission rod and electromagnet, can be triggered to open when internal moisture needs to be treated, thus offsetting the positions of the protective covers from the air outlet. When the humidity is suitable, the protective covers cover the air outlet, preventing the filtered moisture inside the drying chamber from flowing back into the PLC control box body. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the electric telescopic rod of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the drying oven of this utility model.

[0027] In the diagram: 1. PLC control box body; 2. Box door; 3. Touch screen; 4. Triangular block; 5. Light sensor; 6. Drying oven; 7. Exhaust fan; 8. Rectangular plate; 9. Connecting column; 10. Rectangular frame; 11. Elastic filling pad; 12. Transmission plate; 13. Electric telescopic rod; 14. Universal joint; 15. Divider plate; 16. Drying filter cotton; 17. Air outlet; 18. Protective cover; 19. Compression spring; 20. Electromagnet; 21. Air duct. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1 to 3 This utility model provides a technical solution for an expandable PLC touch screen control box:

[0030] Example 1:

[0031] according to Figure 1 , Figure 2 As shown, an expandable PLC touch screen control box includes a PLC control box body 1. A box door 2 is installed on the front of the PLC control box body 1. A rectangular slot is opened on the top of the box door 2. A touch screen 3 is installed inside the rectangular slot. A transmission plate 12 is fixedly connected to both sides of the back of the touch screen 3. A connecting column 9 is fixedly connected to the middle of the back of the touch screen 3. Electric telescopic rods 13 are installed on both sides of the back of the box door 2. A triangular block 4 is fixedly connected to the top of the front of the box door 2. Light sensors 5 are installed on both sides of the triangular block 4. A controller is installed on one corner of the back of the box door 2.

[0032] A rectangular plate 8 is fixedly connected to the middle of the back of the door 2. A rotating shaft is fixedly passed through the center of the connecting column 9. The bottom end of the rotating shaft is rotatably connected to the top end of the rectangular plate 8. A universal joint 14 is installed at the output end of the electric telescopic rod 13. The output end of the electric telescopic rod 13 is connected to the transmission plate 12 through the universal joint 14. Both light sensors 5 are electrically connected to the controller. Both electric telescopic rods 13 are electrically connected to the controller. A rectangular frame 10 is fixedly connected to the inner wall of the rectangular groove. An elastic filling pad 11 is installed between the rectangular frame 10 and the touch screen 3.

[0033] In practical use, the expandable PLC touch screen control box of this utility model, during the assembly and use of the main body 1 of the PLC control box, the light sensors 5 on both sides of the triangular block 4 will detect the light intensity on the left and right sides. When the light intensity on one side is stronger, it will trigger the output end of the electric telescopic rod 13 on the opposite side to extend, thereby pushing the adjacent transmission plate 12, causing the touch screen 3 to tilt and rotate at an angle, avoiding the strong light on one side from directly shining on the touch screen 3, thus reducing the reflection of the touch screen 3 and making it easier for the operator to operate. When the angle of the touch screen 3 changes slightly, it will squeeze the internal elastic filling pad 11 to maintain the adjustable angle, while avoiding the corners from being exposed and bumped.

[0034] Example 2:

[0035] Based on Example 1, such as Figure 1 and Figure 3 As shown, a drying chamber 6 is installed at the bottom of one side wall of the PLC control box body 1. A partition plate 15 is fixedly connected to the inner wall of the drying chamber 6. The partition plate 15 increases the gas flow path and enhances the filtration and drying effect. Multiple drying filter cottons 16 are installed between the partition plate 15 and the inner wall of the drying chamber 6. An exhaust fan 7 is installed on one side wall of the drying chamber 6. A humidity switch is installed on the side wall of the drying chamber 6 located inside the PLC control box body 1. An electromagnet 20 is installed on one side inner wall of the drying chamber 6.

[0036] The drying chamber 6 has multiple air outlets 17 on one side wall inside the PLC control box 1. Each air outlet 17 has a protective cover 18 on one side. A transmission rod is fixedly connected to the back of the protective cover 18. The side wall of the transmission rod is slidably connected to the inner wall of one side of the drying chamber 6. A compression spring 19 is installed between one end of the transmission rod and the electromagnet 20. The magnetism generated by the electromagnet 20 when it is energized is opposite to the magnetism of the transmission rod itself. Therefore, when the electromagnet 20 is energized, it will attract the transmission rod, causing the transmission rod to move. When the electromagnet 20 is not energized, the compression spring 19 between the two will reset the transmission rod. In this way, the multiple protective covers 18 will cover the inside of the air outlets 17.

[0037] Both the electromagnet 20 and the exhaust fan 7 are electrically connected to the internal circuit of the PLC control box 1 through a humidity switch. The exhaust fan 7 has an air duct 21 installed at its outlet, and one end of the air duct 21 is fixedly connected to the side wall of the PLC control box 1.

[0038] In practical use, this expandable PLC touch screen control box, during operation of the PLC control box body 1, causes internal moisture, due to its large mass, to settle at the bottom. When the moisture exceeds the threshold of the humidity switch, it triggers the activation of the electromagnet 20 and the exhaust fan 7. The electromagnet 20 then generates magnetism, attracting a transmission rod with opposite magnetism. This displacement of the transmission rod causes multiple protective covers 18 to move away from multiple air outlets 17. The exhaust fan 7 draws in the gas from inside the drying chamber 6. The moisture inside the PLC control box body 1 enters the drying chamber 6 through the multiple air outlets 17. The drying chamber 6 is equipped with a circular path, ensuring that the gas... The gas becomes dry after being filtered by multiple drying filter cottons 16. Then, the dry gas flows back into the PLC control box body 1 through the air duct 21. The dry gas blows from top to bottom, further causing the humid gas to enter the drying box 6 through the air outlet 17 for processing. When the humidity inside the PLC control box body 1 is suitable, the humidity switch is not triggered. As a result, the electromagnet 20 loses its magnetism, and the transmission rod is reset under the force of the compression spring 19. Therefore, multiple protective covers 18 are placed on multiple air outlets 17 to prevent the moisture filtered inside the drying box 6 from flowing back into the PLC control box body 1.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

Claims

1. An expandable PLC touch screen control box, comprising a PLC control box body (1), characterized in that: The PLC control box body (1) has a door (2) installed on the front. A rectangular slot is provided on the top of the door (2). A touch screen (3) is provided inside the rectangular slot. A transmission plate (12) is fixedly connected to both sides of the back of the touch screen (3). A connecting column (9) is fixedly connected to the middle of the back of the touch screen (3). An electric telescopic rod (13) is installed on both sides of the back of the door (2). A triangular block (4) is fixedly connected to the top of the front of the door (2). A light sensor (5) is installed on both sides of the triangular block (4). A controller is installed on one corner of the back of the door (2). A drying chamber (6) is installed at the bottom of one side wall of the PLC control box body (1). A partition plate (15) is fixedly connected to the inner wall of the drying chamber (6). Multiple drying filter cottons (16) are installed between the partition plate (15) and the inner wall of the drying chamber (6). An exhaust fan (7) is installed on one side wall of the drying chamber (6). A humidity switch is installed on one side wall of the drying chamber (6) inside the PLC control box body (1). An electromagnet (20) is installed on one side inner wall of the drying chamber (6).

2. The expandable PLC touch screen control box according to claim 1, characterized in that: A rectangular plate (8) is fixedly connected to the middle of the back of the box door (2), and a rotating shaft is fixedly passed through the center of the connecting column (9). The bottom end of the rotating shaft is rotatably connected to the top end of the rectangular plate (8).

3. The expandable PLC touch screen control box according to claim 1, characterized in that: The output end of the electric telescopic rod (13) is equipped with a universal joint (14), and the output end of the electric telescopic rod (13) is connected to the transmission plate (12) through the universal joint (14).

4. The expandable PLC touch screen control box according to claim 1, characterized in that: Both light sensors (5) are electrically connected to the controller, and both electric telescopic rods (13) are electrically connected to the controller.

5. The expandable PLC touch screen control box according to claim 1, characterized in that: A rectangular frame (10) is fixedly connected to the inner wall of the rectangular groove, and an elastic filling pad (11) is installed between the rectangular frame (10) and the touch screen (3).

6. The expandable PLC touch screen control box according to claim 1, characterized in that: The drying box (6) has multiple air outlets (17) on one side wall inside the PLC control box body (1). Each of the multiple air outlets (17) has a protective cover (18) on one side. A transmission rod is fixedly connected to the back of the multiple protective covers (18).

7. The expandable PLC touch screen control box according to claim 6, characterized in that: The side wall of the transmission rod is slidably connected to the inner wall of one side of the drying box (6), and a compression spring (19) is installed between one end of the transmission rod and the electromagnet (20).

8. The expandable PLC touch screen control box according to claim 1, characterized in that: The electromagnet (20) and the exhaust fan (7) are electrically connected to the internal circuit of the PLC control box body (1) through a humidity switch. The exhaust fan (7) has an air guide pipe (21) installed at its air outlet. One end of the air guide pipe (21) is fixedly connected to the side wall of the PLC control box body (1).

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