Remote expansion module

Abstract

The utility model belongs to the field of extension modules, particularly relates to a remote extension module, and aims to solve the problems that the existing extension module is single in effect and lacks connection between two adjacent modules. The shell comprises a bottom shell and a mounting plate, and the extension module is located between the bottom shell and the mounting plate; the connecting assemblies are used for connecting the two bottom shells, the connecting assemblies are arranged on the two sides of the bottom shells correspondingly, each connecting assembly comprises an installing block and an inserting plate, and when the connecting assembly is used, the rotating rods are rotated in different directions, so that fixed connection between the outer shells or fixed connection between the bottom shells and the installing plates is removed; the structure is simple, disassembly is convenient, redundant steps are avoided, and the actual practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of expansion module technology, and in particular to a remote expansion module. Background Technology

[0002] In the current field of industrial automation control, traditional PLC systems are typically designed to integrate a certain number of main units. These main units integrate power modules, CPU core processing units, and basic I / O (input / output) modules to achieve centralized control of industrial processes. However, with the increasing level of automation, the number of points that the controlled objects need to monitor and control often far exceeds the range of I / O points that a standard PLC main unit can provide.

[0003] The existing method is to expand the control capabilities of the PLC by adding additional expansion modules to meet the control needs of specific fields. The utility model with announcement number CN213338553U discloses a remote expansion module. This module has the advantage of easy disassembly due to its outer casing. However, in practice, it has been found that the expansion module has a relatively simple effect, lacks connection between two adjacent modules, and has the potential for further improvement in disassembly and installation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the limited functionality of expansion modules and the lack of connection between adjacent modules, by proposing a remote expansion module.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A remote extension module, comprising an extension module;

[0007] The housing includes a bottom shell and a mounting plate, with the expansion module located between the bottom shell and the mounting plate;

[0008] A connecting assembly is used to connect two bottom shells. The connecting assembly is respectively disposed on both sides of the bottom shell. The connecting assembly includes a mounting block and a plug plate. The mounting block and the plug plate are respectively fixedly disposed on both sides of the bottom shell. The mounting block has an inner cavity inside. The top of the mounting block has a plug hole that communicates with the inner cavity. The plug plate on the other side of the bottom shell is inserted into the inner cavity through the plug hole.

[0009] In one possible design, the connecting assembly further includes a rotating rod located inside the inner cavity, with both ends of the rotating rod rotatably extending to the outside of the inner cavity. A semi-circular plate is fixedly installed on the outer wall of the rotating rod inside the inner cavity. A locking hole is provided on one side of the insert plate, and the locking hole cooperates with the semi-circular plate. A torsion spring is sleeved on the outer wall of the rotating rod, and both ends of the torsion spring are fixedly installed at the bottom of the semi-circular plate and the bottom inner wall of the inner cavity, respectively.

[0010] In one possible design, a retaining plate is fixedly provided at the bottom of the mounting plate, and a retaining slot is provided at the top of the bottom shell, with the retaining plate inserted into the slot.

[0011] In one possible design, the bottom shell has a side cavity inside, a slide plate is slidably disposed inside the side cavity, a rod is fixedly disposed on one side of the slide plate, a slot is disposed on one side of the card plate, and one end of the rod slides through into the inside of the card slot and engages with the slot.

[0012] In one possible design, a compression spring is fitted on the outer wall of the insert rod, with the two ends of the compression spring respectively fixed to one side of the slide plate and one side of the inner wall of the side cavity.

[0013] In one possible design, the inner cavity and the side cavity are connected, and the semicircular plate cooperates with the sliding plate.

[0014] In one possible design, the bottom of the mounting plate has multiple wiring holes.

[0015] In this application, during actual use, rotating the rotating rod causes the semicircular plate to rotate, causing one section of the semicircular plate to disengage from the insertion hole. Then, the insertion plate on one side of the outer shell is inserted into the insertion hole on the other side of the outer shell. Afterward, the rotating rod is reset by the torsion spring, causing one section of the semicircular plate to engage with the locking hole, thereby fixing it in place. When the rotating rod is rotated in the opposite direction, causing the semicircular plate to move away from the side cavity, the slide plate will be reset by the force of the compression spring, causing the insertion rod to disengage from the inside of the slot. At this time, the locking plate can be moved, thereby releasing the fixed connection between the bottom shell and the mounting plate. The initial position of the semicircular plate is with one end abutting against the slide plate and the other end located inside the locking hole. Finally, rotating the rotating rod in different directions can release the corresponding fixed connection.

[0016] In this utility model, the remote expansion module can achieve the effect of quickly disassembling the two shells by rotating the rotating rod in the opposite direction through the fixing component; conversely, it can achieve the effect of quick connection to realize the connection between expansion modules.

[0017] In this utility model, the remote extension module can achieve the effect of quickly disassembling the bottom shell and the mounting plate by rotating the rotating rod in the forward direction through the fixing component. Conversely, it can achieve the effect of quick connection to achieve the fixed installation of the shell.

[0018] In this invention, the fixed connection between the outer shells or between the bottom shell and the mounting plate can be released by rotating the rotating rod in different directions during use. The simple structure makes disassembly convenient, eliminates unnecessary steps, and increases practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of a remote expansion module proposed in this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of a remote expansion module proposed in this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged view of the structure of part A in the middle.

[0022] In the diagram: 1. Bottom shell; 2. Mounting plate; 3. Expansion module; 4. Wiring hole; 5. Mounting block; 6. Inner cavity; 7. Torsion spring; 8. Slide plate; 9. Side cavity; 10. Insert rod; 11. Slot; 12. Compression spring; 13. Locking plate; 14. Rotating rod; 15. Insertion hole; 16. Insertion plate; 17. Locking hole; 18. Semicircular plate; 19. Locking groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1

[0025] Reference Figure 1-2 A remote extension module, used in the field of extension modules, includes:

[0026] Housing Structure: The bottom shell 1 serves as the main supporting structure. Its top is designed with a slot 19 for engaging with the mounting plate 13 on the bottom of the mounting plate 2 to achieve a secure connection. The mounting plate 2 has a mounting plate 13 machined along its bottom edge, which inserts into the slot 19 of the bottom shell 1 for plug-in connection. Furthermore, the mounting plate 2 is provided with multiple wiring holes 4 for electrical connection to external devices or power supplies. The expansion module 3 is a prior art product, identical to the expansion module in announcement number CN213338553U, or a DFM series expansion module.

[0027] Example 2

[0028] refer to Figure 3 Improvements based on Example 1:

[0029] Connection component design: To achieve extended connection between the base shells 1, a connection component including mounting block 5, insert plate 16, rotating rod 14, and semi-circular plate 18 is designed. Mounting block 5 and insert plate 16 are fixedly mounted on both sides of each base shell 1. The mounting block 5 has an inner cavity 6 and a top insertion hole 15. When two base shells need to be connected, the insert plate 16 of one base shell is aligned with the insertion hole 15 of the other base shell and inserted until it is fully inserted into the inner cavity 6.

[0030] Locking Mechanism: To lock the position of the insert plate 16, a rotating rod 14 is provided inside the inner cavity 6. Both ends of the rotating rod 14 pass through the inner cavity 6 and are equipped with torsion springs 7. One end of the torsion spring 7 is fixed to the bottom of the semicircular plate 18, and the other end is fixed to the bottom of the inner cavity 6, so that the semicircular plate 18 remains in a natural drooping state when no external force is applied. The insert plate 16 is provided with a locking hole 17. When the insert plate 16 is fully inserted, rotating the rotating rod 14 causes the semicircular plate 18 to rotate and lock into the locking hole 17, thus achieving a firm connection between the bottom shells.

[0031] Additional locking mechanism: To further enhance the stability of the connection, the bottom shell 1 also has a side cavity 9, in which a slide plate 8 and a plug rod 10 are slidably installed. One end of the plug rod 10 extends through the side cavity 9 into the slot 19, cooperating with the slot 11 on the mounting plate 13 of the mounting plate 2. A compression spring 12 is sleeved on the plug rod 10, with both ends fixed to the inner walls of the slide plate 8 and the side cavity 9, respectively.

[0032] Specifically, rotating the lever 14 causes the semicircular plate 18 to rotate, disengaging one section of the semicircular plate 18 from the insertion hole 15. Then, the insertion plate 16 on one side of the outer casing is inserted into the insertion hole 15 on the other side of the outer casing. The lever 14 is then reset by the torsion spring 7, causing one section of the semicircular plate 18 to engage with the locking hole 17, thus securing it. When the lever 14 is rotated in the opposite direction, moving the semicircular plate 18 away from the side cavity 9, the slide plate 8 is reset by the force of the compression spring 12, causing the insertion rod 10 to disengage from the slot 11. At this point, the locking plate 13 can be moved to release the fixed connection between the bottom shell 1 and the mounting plate 2. The initial position of the semicircular plate 18 is that one end abuts against the sliding plate 8 and the other end is located inside the locking hole 17. Finally, the rotating rod 14 can be rotated to different directions to release the corresponding fixed connection. By rotating the rotating rod 14 in different directions, the fixed connection between the outer shells or the fixed connection between the bottom shell 1 and the mounting plate 2 can be released. The simple structure makes disassembly convenient, without unnecessary steps, and increases the practicality.

[0033] However, as is well known to those skilled in the art, the working principle and wiring method of the expansion module 3 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A remote extension module, characterized by, The utility model relates to an extension module (3) for a computer, comprising: An extension module (3); A housing comprising a bottom shell (1) and a mounting plate (2), the extension module (3) being located between the bottom shell (1) and the mounting plate (2); A connecting assembly for connecting two bottom shells (1), the connecting assembly being provided on both sides of the bottom shell (1) respectively, the connecting assembly comprising a mounting block (5) and a plug-in plate (16), the mounting block (5) and the plug-in plate (16) being fixedly provided on both sides of the bottom shell (1) respectively, an inner cavity (6) being formed in the mounting block (5), a plug-in hole (15) being formed in the top of the mounting block (5) and being in communication with the inner cavity (6), and the plug-in plate (16) on one side of the other bottom shell (1) being inserted into the inner cavity (6) through the plug-in hole (15).

2. A remote extension module according to claim 1, characterized in that, The connecting assembly further comprises a rotating rod (14), the rotating rod (14) being located in the inner cavity (6) and having both ends thereof rotatingly penetrating out of the inner cavity (6) respectively, a semicircular plate (18) being fixedly provided on the outer wall of the rotating rod (14) in the inner cavity (6), a clamping hole (17) being formed in one side of the plug-in plate (16) and being matched with the semicircular plate (18), and a torsional spring (7) being sleeved on the outer wall of the rotating rod (14) and having both ends thereof fixedly provided on the bottom of the semicircular plate (18) and the inner bottom wall of the inner cavity (6) respectively.

3. A remote extension module according to claim 2, wherein, A clamping plate (13) is fixedly provided on the bottom of the mounting plate (2), and a clamping groove (19) is formed in the top of the bottom shell (1) and into which the clamping plate (13) is inserted.

4. The remote extension module of claim 3, wherein, An inner cavity (6) is formed in the bottom shell (1), a sliding plate (8) being slidingly provided in the inner cavity (9), a plug-in rod (10) being fixedly provided on one side of the sliding plate (8), a clamping groove (11) being formed in one side of the clamping plate (13), and one end of the plug-in rod (10) slidingly penetrating into the clamping groove (19) and being matched with the clamping groove (11).

5. A remote extension module according to claim 4, wherein, A compression spring (12) is sleeved on the outer wall of the plug-in rod (10), and both ends of the compression spring (12) are fixedly provided on one side of the sliding plate (8) and one side of the inner wall of the inner cavity (9) respectively.

6. A remote extension module according to claim 5, wherein, The inner cavity (6) and the inner cavity (9) are in communication, and the semicircular plate (18) is matched with the sliding plate (8).

7. The remote extension module of claim 1, wherein, A plurality of wire holes (4) are formed in the bottom of the mounting plate (2).

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