PLC circuit board convenient to disassemble

Abstract

The utility model discloses a PLC circuit board convenient to disassemble, which relates to the technical field of PLC circuit boards and comprises an equipment mainboard, an installation shell is arranged on the equipment mainboard, the PLC circuit board is arranged in the installation shell, a plurality of threaded holes are uniformly formed in the installation shell, and fixing bolts are arranged in the threaded holes in a threaded connection mode. A sliding rod, a sliding plate and an inserting block are arranged at the top of the PLC circuit board through a fixing shell, a fixing cavity is formed in the mounting shell, a clamping groove matched with the inserting block for use is formed in the side wall of the fixing cavity, and a first spring sleeves the outer side of the sliding rod. According to the utility model, the insertion block on the sliding plate is matched with the clamping groove on the mounting shell, and the automatic reset function of the first spring is combined, so that the quick mounting of the PLC circuit board is realized, meanwhile, the stability of the circuit board after mounting is ensured through the locking mechanism of the insertion rod and the insertion hole of the insertion block controlled by the telescopic rod, and the circuit board can be conveniently dismounted when the circuit board needs to be dismounted. And the locking mechanism can be released through simple operation, and the insertion block is pulled out, so that the circuit board can be quickly dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of PLC circuit boards, and particularly relates to a PLC circuit board which is convenient to disassemble. Background Technique

[0002] With the rapid development of industrial automation technology, programmable logic controllers (PLCs) play a crucial role in industrial automation systems. As the core component of a PLC, the stability and reliability of a PLC circuit board have a decisive impact on the operation of the entire system. However, in practical applications, due to the needs of equipment maintenance, upgrade, or fault troubleshooting, it is often necessary to disassemble and replace the PLC circuit board.

[0003] Traditional PLC circuit board installation methods mostly use screw fixation or welding. Although these methods can ensure the stability of the circuit board to a certain extent, there are many inconveniences in the disassembly and replacement process. The screw fixation method requires tools for disassembly, with cumbersome operation and low efficiency; while the welding method requires destructive treatment of the circuit board during disassembly, which not only wastes resources but also may damage the circuit board. Content of the Utility Model

[0004] The purpose of the utility model is to provide a PLC circuit board which is convenient to disassemble, so as to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A PLC circuit board which is convenient to disassemble, including an equipment main board, an installation shell is arranged on the equipment main board, a PLC circuit board is arranged inside the installation shell, a plurality of threaded holes are evenly arranged on the installation shell, fixing bolts are arranged in the threaded holes through threaded connection, a plurality of fixing shells are evenly arranged on the top of the PLC circuit board, a sliding rod is arranged inside the fixing shell, a sliding plate is slidably arranged on the sliding rod, an inserting block is arranged on the side wall of the sliding plate, a fixing cavity is arranged on the installation shell, and a clamping groove matched with the inserting block is arranged on the side wall of the fixing cavity. A first spring is sleeved outside the sliding rod, one end of the first spring is connected with the sliding plate, and the other end of the first spring is connected with the fixing shell.

[0007] As a further scheme of the utility model: an installation cavity is further arranged on the installation shell below the fixing cavity, a telescopic rod is arranged in the installation cavity, a moving plate is arranged at the end of the telescopic arm at the top of the telescopic rod, an inserting rod is arranged on the top of the moving plate, and a jack matched with the inserting rod is arranged on the inserting block.

[0008] As a further scheme of the utility model: a dial is arranged on the sliding plate.

[0009] As a further solution of the utility model: A second spring is sleeved outside the telescopic rod. One end of the second spring is connected to the moving plate, and the other end of the second spring is connected to the side wall of the installation cavity.

[0010] As a further solution of the utility model: The inserting rod penetrates through the cavity wall of the fixing cavity and extends into the interior of the fixing cavity.

[0011] As a further solution of the utility model: A dial plate is further arranged on the moving plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. Through the cooperation of the inserting block on the sliding plate and the clamping groove on the installation shell, combined with the automatic reset function of the first spring, the rapid installation of the PLC circuit board is realized. At the same time, through the locking mechanism of the inserting rod controlled by the telescopic rod and the inserting hole of the inserting block, the stability of the circuit board after installation is ensured. When it is necessary to remove, only a simple operation is required to release the locking mechanism and pull out the inserting block to complete the rapid removal of the circuit board, greatly improving the convenience of maintenance and replacement;

[0014] 2. Under the action of the telescopic rod and the second spring, the inserting rod can stably lock the inserting block, further enhancing the installation stability of the circuit board, ensuring the stability and reliability of the PLC circuit board during long-term use, and reducing the failures and damages caused by improper installation or improper removal operation. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0016] Figure 2 It is a schematic structural diagram inside the installation shell in an embodiment of the utility model.

[0017] Figure 3 It is a schematic structural diagram at position A in an embodiment of the utility model.

[0018] Annotation of the reference numerals: 1. Equipment main board; 2. Installation shell; 3. Fixed bolt; 4. PLC circuit board; 5. Fixed shell; 6. Slide bar; 7. Sliding plate; 701. Dial piece; 8. Inserting block; 9. First spring; 10. Fixing cavity; 11. Telescopic rod; 12. Moving plate; 1201. Dial plate; 13. Inserting rod; 14. Second spring. Detailed Embodiment

[0019] The following embodiments will describe the present utility model in detail with reference to the accompanying drawings. In the drawings or descriptions, similar or identical parts are denoted by the same reference numerals, and in actual applications, the shapes, thicknesses or heights of the various components may be enlarged or reduced. The various embodiments listed in the present utility model are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. Any obvious modification or change made to the present utility model does not depart from the spirit and scope of the present utility model.

[0020] Embodiment

[0021] Please refer to Figures 1 to 3 , in the embodiment of the present utility model, a PLC circuit board that is convenient to disassemble includes a device main board 1. An installation shell 2 is arranged on the device main board 1. A PLC circuit board 4 is arranged inside the installation shell 2. A plurality of threaded holes are evenly arranged on the installation shell 2. Fixing bolts 3 are arranged in the threaded holes through threaded connection. At this time, under the action of the fixing bolts 3, the installation shell 2 can be arranged on the device main board 1, thus facilitating the installation work of the PLC circuit board 4.

[0022] A plurality of fixing shells 5 are evenly arranged on the top of the PLC circuit board 4. A sliding rod 6 is arranged inside the fixing shell 5. A sliding plate 7 is slidably arranged on the sliding rod 6. An insertion block 8 is arranged on the side wall of the sliding plate 7. A fixing cavity 10 is arranged on the installation shell 2. A clamping groove that is used in cooperation with the insertion block 8 is arranged on the side wall of the fixing cavity 10. At this time, under the action of the insertion block 8 and the clamping groove, the PLC circuit board 4 can be installed and fixed, thereby ensuring the installation quality of the PLC circuit board 4. When it is necessary to disassemble the PLC circuit board 4, move the sliding plate 7 inward so that the insertion block 8 is removed from the clamping groove. At this time, the PLC circuit board 4 can be taken off, thereby completing the disassembly work of the PLC circuit board 4. A first spring 9 is sleeved outside the sliding rod 6. One end of the first spring 9 is connected to the sliding plate 7, and the other end of the first spring 9 is connected to the fixing shell 5. At this time, under the action of the first spring 9, the connection quality between the insertion block 8 and the clamping groove is ensured, thereby improving the installation quality of the PLC circuit board 4. A dial 701 is arranged on the sliding plate 7, and the sliding plate 7 can be driven to move through the dial 701.

[0023] An installation cavity is further provided on the installation shell 2 below the fixed cavity 10, a telescopic rod 11 is provided in the installation cavity, a movable plate 12 is provided at the end of the telescopic arm at the top of the telescopic rod 11, an insertion rod 13 is provided on the top of the movable plate 12, the insertion rod 13 penetrates the cavity wall of the fixed cavity 10 and extends to the inside of the fixed cavity 10, and a socket used in conjunction with the insertion rod 13 is provided on the plug block 8. At this time, under the action of the insertion rod 13 and the socket, the plug block 8 can be restricted, so that the connection quality between the plug block 8 and the card slot is improved, and then the installation quality of the PLC circuit board 4 is further improved. A second spring 14 is sleeved on the outside of the telescopic rod 11, one end of the second spring 14 is connected to the movable plate 12, and the other end of the second spring 14 is connected to the side wall of the installation cavity. At this time, under the action of the second spring 14, the restriction quality of the plug block 8 by the plug rod 13 is guaranteed, thereby ensuring the installation quality of the PLC circuit board 4. A dial plate 1201 is also provided on the movable plate 12. At this time, the movable plate 12 can be driven to move by the dial plate 1201, so that the plug rod 13 releases the restriction on the plug block 8, and the plug block 8 can be removed from the slot, thereby facilitating the removal of the PLC circuit board 4.

[0024] Working principle: First, when the PLC circuit board 4 needs to be installed on the device mainboard 1, the installation shell 2 is fixed to the device mainboard 1 by the fixing bolts 3. The top of the PLC circuit board 4 in the installation shell 2 is evenly distributed with fixing shells 5. Each fixing shell 5 is equipped with a slide bar 6 and a slide plate 7. In the initial state, the slide plate 7 is in a position extending outward under the elastic force of the first spring 9, so that the plug block 8 on the side wall of the slide plate 7 can be smoothly inserted into the slot on the fixed cavity 10 on the installation shell 2, ensuring that the PLC circuit board 4 can be firmly fixed in the installation shell 2. If the PLC circuit board 4 needs to be removed, the slide plate 7 can be moved inward by toggling the paddle 701 on the slide plate 7, and the first spring 9 is compressed. When the slide plate 7 moves inward, the plug block 8 moves out of the slot, releasing the PLC circuit board 4. The PLC circuit board 4 is fixed, and at this time, the PLC circuit board 4 can be easily taken out of the mounting shell 2. In order to further improve the installation stability of the PLC circuit board 4, an installation cavity is further provided on the mounting shell 2 below the fixed cavity 10, in which a telescopic rod 11 is installed, and an insertion rod 13 is installed on the movable plate 12 at the top of the telescopic rod 11. The insertion rod 13 can pass through the cavity wall of the fixed cavity 10 and enter the interior of the fixed cavity 10. When the plug-in block 8 is inserted into the slot, the insertion rod 13 is inserted into the jack on the plug-in block 8, thereby limiting the movement of the plug-in block 8 and preventing it from accidentally slipping out of the slot, thereby ensuring the installation quality of the PLC circuit board 4. When the PLC circuit board 4 needs to be disassembled, the dial plate 1201 is used to release the restriction on the plug-in block 8 by the insertion rod 13, and the plug-in block 8 is moved out of the slot by the dial 701. At this time, the PLC circuit board 4 can be removed.

[0025] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0026] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PLC circuit board that is easy to dismantle, comprising a device mainboard (1), characterized in that: The mainboard (1) of the device is provided with a mounting shell (2), a PLC circuit board (4) is arranged inside the mounting shell (2), a plurality of threaded holes are evenly arranged on the mounting shell (2), fixing bolts (3) are arranged in the threaded holes through threaded connection, a plurality of fixing shells (5) are evenly arranged on the top of the PLC circuit board (4), a sliding rod (6) is arranged inside the fixing shell (5), a sliding plate (7) is slidably arranged on the sliding rod (6), an insert block (8) is arranged on the side wall of the slide block (7), a fixing cavity (10) is arranged on the mounting shell (2), a card slot used in conjunction with the insert block (8) is arranged on the side wall of the fixing cavity (10), a first spring (9) is sleeved on the outer side of the sliding rod (6), one end of the first spring (9) is connected to the slide plate (7), and the other end of the first spring (9) is connected to the fixing shell (5).

2. The easily dismantled PLC circuit board according to claim 1, characterized in that: The installation shell (2) is also provided with an installation cavity below the fixed cavity (10), a telescopic rod (11) is provided in the installation cavity, a movable plate (12) is provided at the end of the telescopic arm at the top of the telescopic rod (11), an insertion rod (13) is provided at the top of the movable plate (12), and a socket for use with the insertion rod (13) is provided on the insertion block (8).

3. The easily dismantled PLC circuit board according to claim 1, characterized in that: The slide plate (7) is provided with a paddle (701).

4. The easily dismantled PLC circuit board according to claim 2, characterized in that: A second spring (14) is sleeved on the outside of the telescopic rod (11), one end of the second spring (14) is connected to the movable plate (12), and the other end of the second spring (14) is connected to the side wall of the installation cavity.

5. The easily dismantled PLC circuit board according to claim 2, characterized in that: The insertion rod (13) penetrates the wall of the fixing cavity (10) and extends into the interior of the fixing cavity (10).

6. The easily dismantled PLC circuit board according to claim 2, characterized in that: The movable plate (12) is also provided with a shifting plate (1201).

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