Plug-in mounted PLC control box

Abstract

The utility model discloses a PLC control box for plug-in installation, and relates to the technical field of PLC control boxes, the PLC control box comprises an inner box body and a limiting assembly, the two sides of the inner box body are provided with limiting plates, the limiting assembly for plug-in installation is arranged at the front side of the limiting plates, and the limiting assembly comprises an installation block, an inclined sheet, a limiting spring, a control rod and an end cap. An inclined sheet is connected to the rear side of the mounting block, a limiting spring is connected to the surface of the inclined sheet, a control rod is arranged in the limiting spring, an end cap is mounted at the end of the control rod, and an outer box body is connected to the end of the limiting spring. According to the plug-in mounted PLC control box, the inner box body is slidably inserted into the outer box body, the limiting plate is limited by the limiting assembly to limit the inner box body, the inclined sheet can be bent to be close to the inner wall of the outer box body to enable the inner box body to enter and limit the limiting plate, and the control rod moves outwards to pull the inclined sheet to deform; and the inner box body is convenient to move out during disassembly.

Description

Technical Field

[0001] The utility model relates to the technical field of PLC control boxes, in particular to a plug-in installed PLC control box. Background Art

[0002] PLC control box, that is, programmable controller, is a control device used to realize industrial automation, and can also be called programmable logic controller. It has the characteristics of small size, light weight, small size, multi-function, strong programmability, etc. It can control the automated production systems of robots, automobiles, machine tools, metallurgy, smelting, chemicals, ports, water conservancy, power plants, meteorology, petroleum and electronics industries.

[0003] For example, the utility model with application number CN202120006198.X relates to the technical field of PLC control box. The advantages of the utility model are: the PLC control box is provided with a transfer mechanism, the PLC control box body is installed inside the transfer mechanism, and the mounting plate is clamped inside the card slot. The PLC control box body is easy to remove from the inside of the transfer mechanism, which is convenient for maintenance and has strong practicality. A avoidance hole is provided that is compatible with the first mounting ear fixed at the edge of the mounting plate, so that when the PLC control box body is removed, it can also be used alone and fixed on the wall, which is more flexible to use. However, the existing PLC control box is usually fixed and installed with bolts, and the bolts need to be removed one by one during maintenance, which is inconvenient to operate.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a plug-in installed PLC control box is provided. Utility Model Content

[0005] The utility model aims to provide a plug-in installed PLC control box to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plug-in installed PLC control box, comprising an inner box body and a limit assembly, limit plates are installed on both sides of the inner box body, the limit assembly for plug-in installation is arranged on the front side of the limit plate, and the limit assembly comprises a mounting block, an inclined plate, a limit spring, a control rod and an end cap, the rear side of the mounting block is connected to the inclined plate, and the surface of the inclined plate is connected to the limit spring, the control rod is arranged inside the limit spring, and the end of the control rod is installed with an end cap.

[0007] Furthermore, the number of the inclined plates and the limit springs is four, and the limit springs and the control rod are sleeve-connected.

[0008] Furthermore, the end of the limit spring is connected to the outer box body, and a side groove is provided in the middle of the side of the outer box body.

[0009] Furthermore, a back plate is installed on the rear side of the inner box body, and positioning blocks are installed on the upper and lower ends of the back plate.

[0010] Furthermore, the back plate and the positioning block are an integrated structure, and a rear spring is installed on the rear surface of the back plate.

[0011] Furthermore, a limiting frame is arranged outside the positioning block, and an installation cavity is arranged outside the limiting frame.

[0012] Furthermore, fixing components for fixing the box body are installed at the upper and lower ends of the outer box body, and there are two groups of fixing components.

[0013] Furthermore, the fixing assembly includes a fixing plate and a fixing hole, and a fixing hole is opened in the middle of the fixing plate.

[0014] The utility model provides a plug-in installed PLC control box, which has the following beneficial effects:

[0015] 1. The utility model inserts the inner box body into the outer box body through sliding. The limiting plate is limited by the limiting assembly to limit the inner box body. The inclined piece can be bent close to the inner wall of the outer box body so that the inner box body enters and limits the limiting plate. The control rod moves outward to pull the inclined piece to deform, so that the inner box body is easy to move out when disassembling.

[0016] 2. The utility model uses a limit frame to limit the movement of the positioning block, so that the back plate and the inner box body will not be offset when moving. The rear spring is compressed when the inner box body is installed. When the inclined piece does not limit the limit plate, the elastic force of the rear spring pushes the inner box body to assist in removing the inner box body. The fixing plate and the fixing hole are used for installing and fixing the outer box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of a plug-in installed PLC control box of the utility model;

[0018] Figure 2 This is a schematic diagram of the top view of a plug-in installed PLC control box of the utility model;

[0019] Figure 3 The utility model is a schematic diagram of a top view of a plug-in installed PLC control box.

[0020] In the figure: 1. inner box body; 2. limit plate; 3. limit assembly; 301. mounting block; 302. inclined plate; 303. limit spring; 304. control rod; 305. end cap; 4. outer box body; 5. side groove; 6. back plate; 7. positioning block; 8. rear spring; 9. limit frame; 10. mounting cavity; 11. fixing assembly; 1101. fixing plate; 1102. fixing hole. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1 As shown, a plug-in installed PLC control box includes an inner box body 1 and a limit assembly 3, limit plates 2 are installed on both sides of the inner box body 1, the inner box body 1 is slidably inserted into the outer box body 4, the end of the limit spring 303 is connected to the outer box body 4, and a side groove 5 is opened in the middle of the side of the outer box body 4, a limit frame 9 is set on the outer side of the positioning block 7, the limit frame 9 is used for the limited movement of the positioning block 7, so that the back plate 6 and the inner box body 1 will not be offset when moving, and an installation cavity 10 is set on the outside of the limit frame 9, and a fixing assembly 11 for fixing the box body is installed at the upper and lower ends of the outer box body 4, and the number of the fixing assembly 11 is set in two groups, the fixing assembly 11 includes a fixing plate 1101 and a fixing hole 1102, and a fixing hole 1102 is opened in the middle of the fixing plate 1101, and the fixing plate 1101 and the fixing hole 1102 are used for the installation and fixation of the outer box body 4.

[0023] like Figure 2 As shown, the limit assembly 3 for plug-in installation is arranged on the front side of the limit plate 2, and the limit plate 2 is limited by the limit assembly 3 to limit the inner box body 1, and the limit assembly 3 includes a mounting block 301, an inclined piece 302, a limit spring 303, a control rod 304 and an end cap 305, and the rear side of the mounting block 301 is connected with the inclined piece 302, and the inclined piece 302 can be bent close to the inner wall of the outer box body 4 so that the inner box body 1 enters and limits the limit plate 2, and the surface of the inclined piece 302 is connected with the limit spring 303, and the control rod 304 is arranged inside the limit spring 303, and the end of the control rod 304 is installed with an end cap 305, the inclined piece 302 and the limit spring 303 are arranged in four groups, and the limit spring 303 and the control rod 304 are socket-connected, and the control rod 304 moves outward to pull the inclined piece 302 to deform, so that the inner box body 1 is easy to move out during disassembly.

[0024] like Figure 3 As shown, a back plate 6 is installed on the rear side of the inner box body 1, and positioning blocks 7 are installed on the upper and lower ends of the back plate 6. The positioning blocks 7 move in the limit frame 9 so that the inner box body 1 can be installed in a directional manner. The back plate 6 and the positioning blocks 7 are an integrated structure, and a rear spring 8 is installed on the rear surface of the back plate 6. The rear spring 8 is compressed when the inner box body 1 is installed. When the inclined piece 302 does not limit the limit plate 2, the elastic force of the rear spring 8 pushes the inner box body 1 to assist in removing the inner box body 1.

[0025] In summary, the plug-in installed PLC control box is first based on Figure 1-Figure 3The structure shown in the figure uses bolts to pass through the fixing holes 1102 to fix and limit the fixing plate 1101 and the outer box body 4, and then the inner box body 1 is slidably inserted into the inner part of the outer box body 4. During installation, the positioning block 7 is located in the limiting frame 9 and moves in a directional manner. The inner box body 1 slides toward the inner part of the outer box body 4 until the limiting plate 2 slides to the rear end of the inclined piece 302. At this time, the inclined piece 302 limits the limiting plate 2. During disassembly, the control rod 304 is pulled to make the inclined piece 302 bend close to the inner wall of the outer box body 4, so that the limiting plate 2 can be moved out from the side of the inclined piece 302. At the same time, the rear spring 8 is compressed when the inner box body 1 is installed. During disassembly, the elastic force of the rear spring 8 pushes the inner box body 1 to assist in the removal of the inner box body 1.

[0026] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A plug-in mounted PLC control box, comprising an inner box body (1) and a limit assembly (3), characterized in that: The inner box body (1) is provided with a limit plate (2) on both sides, and the limit assembly (3) for plug-in installation is arranged on the front side of the limit plate (2), and the limit assembly (3) comprises a mounting block (301), an inclined plate (302), a limit spring (303), a control rod (304) and an end cap (305), the rear side of the mounting block (301) is connected with the inclined plate (302), and the surface of the inclined plate (302) is connected with the limit spring (303), the interior of the limit spring (303) is provided with a control rod (304), and the end of the control rod (304) is provided with an end cap (305).

2. A plug-in installed PLC control box according to claim 1, characterized in that: The inclined plates (302) and the limit springs (303) are provided in four groups, and the limit springs (303) and the control rods (304) are sleeve-connected.

3. A plug-in installed PLC control box according to claim 1, characterized in that: The end of the limit spring (303) is connected to the outer box body (4), and a side groove (5) is provided in the middle of the side of the outer box body (4).

4. A plug-in installed PLC control box according to claim 1, characterized in that: A back plate (6) is installed on the rear side of the inner box body (1), and positioning blocks (7) are installed on the upper and lower ends of the back plate (6).

5. A plug-in installed PLC control box according to claim 4, characterized in that: The back plate (6) and the positioning block (7) are an integrated structure, and a rear spring (8) is installed on the rear surface of the back plate (6).

6. A plug-in installed PLC control box according to claim 4, characterized in that: A limiting frame (9) is arranged outside the positioning block (7), and an installation cavity (10) is arranged outside the limiting frame (9).

7. A plug-in installed PLC control box according to claim 3, characterized in that: The upper and lower ends of the outer box body (4) are provided with fixing components (11) for fixing the box body, and the number of the fixing components (11) is two.

8. A plug-in installed PLC control box according to claim 7, characterized in that: The fixing assembly (11) comprises a fixing plate (1101) and a fixing hole (1102), and a fixing hole (1102) is provided in the middle of the fixing plate (1101).

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