An easy-to-install network expansion module component

Abstract

This invention discloses a conveniently installed network expansion module assembly, including an expansion module assembly housing. A locking block, fixedly connected to the back of the housing, is provided on the back of the housing. The locking block has a slot for engaging with one side of a guide rail. A rail-locking mechanism is installed on the housing for engaging with the other side of the guide rail. The rail-locking mechanism includes a fixing plate fixedly connected to the back of the housing. A locking tongue is slidably connected to the fixing plate. The locking tongue is positioned opposite to the locking block, and a compression spring is provided between the locking tongue and the fixing plate. The compression spring pushes the locking tongue towards the locking block. This invention uses a retractable locking tongue to engage with the back of the guide rail, facilitating installation, preventing the expansion module assembly from moving and causing wiring disconnection, and improving installation and wiring stability.

Description

Technical fields:

[0001] This invention relates to the field of expansion module structure technology, and more specifically to a network expansion module component that is easy to install. Background technology:

[0002] Smart communities represent a new concept in community management and a new model of social management innovation under the new circumstances. They fully utilize the integrated application of next-generation information technologies such as the Internet of Things, cloud computing, and mobile internet to provide residents with a safe, comfortable, and convenient modern and intelligent living environment. Communities based on this new management model of information-based and intelligent social management and services have become a trend and characteristic of urban development worldwide.

[0003] In the process of building a smart community network, IP controllers and network IO expansion modules are needed to connect ports such as property management, commercial, owner, electromechanical, and security equipment to realize digital property management, smart community operation, and convenient life for owners.

[0004] The IP controller and network I / O expansion module components are installed on a DIN rail. Existing installation methods involve a C-shaped rail structure on the bottom of the IP controller and expansion module housing. The module component is threaded onto the rail through one end. However, when installing expansion modules later, the blocking components at both ends of the rail must be removed before the expansion module can be threaded onto the rail and moved to the IP controller side, making installation and removal inconvenient. Furthermore, the expansion module can move freely left and right on the rail, making it easy to accidentally touch the expansion module when installing other components on the rail, causing loose connections at the expansion module's terminals and resulting in network failures. Summary of the Invention:

[0005] The purpose of this invention is to solve the above-mentioned technical problems and provide a network expansion module component that is easy to install.

[0006] To achieve the above objectives, the present invention employs the following technical solution:

[0007] An easy-to-install network expansion module assembly includes an expansion module assembly housing. A locking block, fixedly connected to the back of the housing, is provided on the back of the housing. The locking block has a slot for engaging with one side of a guide rail. A rail-locking mechanism is installed on the expansion module assembly housing for engaging with the other side of the guide rail. The rail-locking mechanism includes a fixing plate fixedly connected to the back of the expansion module assembly housing. A locking tongue is slidably connected to the fixing plate. The locking tongue is positioned opposite to the locking block. A compression spring is provided between the locking tongue and the fixing plate, and the compression spring is used to push the locking tongue towards the locking block.

[0008] Furthermore, the fixing plate is provided with two opposing limiting blocks, and there is a receiving gap between the two limiting blocks to accommodate the locking tongue. Limiting protrusions are provided on both sides of the locking tongue. The limiting blocks are provided with receiving notches to accommodate the limiting blocks and compression springs. The compression spring is located on the side of the limiting protrusion away from the locking block. One end of the compression spring abuts against the side wall of the limiting protrusion, and the other end of the compression spring abuts against the bottom of the receiving notch.

[0009] Furthermore, the outer surface of the limiting block is provided with a snap-fit ​​groove, and the surface of the two limiting blocks is provided with a cover plate that limits the locking tongue in the receiving gap. The cover plate is provided with a protruding snap-fit ​​strip, which is inserted into the snap-fit ​​groove to snap the cover plate onto the limiting block.

[0010] Furthermore, the cross-section of the snap-fit ​​strip is a T-shaped structure, and the cross-section of the snap-fit ​​groove is a T-shaped groove.

[0011] Furthermore, the fixing plate has an installation groove on the surface of the accommodating gap, and a first rack with teeth is provided in the installation groove. The locking tongue has a second rack with the same teeth as the first rack on the side near the fixing plate. The first rack and the second rack are connected by a drive gear through gear engagement. An eccentric wheel is rotatably connected to the locking tongue. One side of the eccentric wheel protrudes on the outer side of the locking tongue near the fixing plate. The drive gear and the eccentric wheel are connected by a connecting rod. The drive gear is used to drive the eccentric wheel to rotate and abut against the back of the guide rail when it moves toward the locking block, so that the locking tongue is clamped on the guide rail.

[0012] Furthermore, the locking tongue has a receiving cavity on the side near the fixed plate, the eccentric wheel is located in the receiving cavity, and a first rotating shaft and a second rotating shaft are fixedly connected to the eccentric wheel. The first rotating shaft is eccentrically arranged on the eccentric wheel and rotatably connected to the locking tongue. A third rotating shaft is provided in the middle of the drive gear, and a connecting rod is rotatably connected to the third rotating shaft. The end of the connecting rod away from the third rotating shaft is rotatably connected to the second rotating shaft.

[0013] Furthermore, the locking tongue has an actuating groove at the end away from the locking block, which extends through the fixing plate and protrudes to the outside of the fixing plate.

[0014] Furthermore, the actuating groove includes an actuating recess and an actuating through groove located in the actuating recess.

[0015] Furthermore, a guide slope is provided on the side of the locking tongue that is away from the fixing plate near the end of the locking block, and the projected length of the guide slope along the length direction of the locking tongue is greater than the length of the locking tongue extending into the bottom of the guide rail.

[0016] Furthermore, the locking tongue has a chamfer on the side near the fixing plate at the end near the locking block.

[0017] Furthermore, a rubber anti-slip layer is fixedly connected to the rim of the eccentric wheel.

[0018] Working principle: During installation, the clips on the module assembly are directly hung on the upper edge of the horizontally mounted guide rail, with the locking tongue fitting against the lower edge of the guide rail. Pressing down on the expansion module assembly housing causes the lower edge of the guide rail to press against the locking guide slope. Under pressure, the locking tongue retracts away from the guide rail. After passing the edge of the guide rail, the locking tongue, under the action of the compression spring, extends into the back of the guide rail, thus clamping the lower edge of the guide rail between the expansion module assembly housing and the locking tongue, thereby installing the module assembly onto the guide rail. For extended installations, simply control... The expansion module assembly is installed next to the device, eliminating the need to remove and reinstall other components on the guide rail. As the locking tongue engages with the back of the guide rail, it moves towards the locking block, causing the drive gear to move in the same direction. This movement of the drive gear, via a connecting rod, drives the eccentric wheel to rotate. Driven by the drive gear towards the locking block, the eccentric wheel rotates out from the cavity onto the back of the guide rail, and its edge presses against the back of the guide rail, thus locking the rail-locking mechanism onto the guide rail. This prevents the expansion module assembly from moving along the guide rail, ensuring stable wiring and reducing the occurrence of malfunctions.

[0019] The present invention provides a convenient network expansion module assembly with the following advantages: The network expansion module assembly is installed on the guide rail by a retractable locking tongue that snaps into the back of the guide rail, simplifying operation, facilitating installation, and improving installation efficiency; it can be installed directly at the desired location without needing to insert it from both ends of the guide rail, thus avoiding malfunctions caused by disassembling other components on the guide rail; during installation, the locking tongue, driven by a compression spring, causes the eccentric wheel to rotate and clamp the guide rail, preventing the expansion module assembly from moving and causing wiring to become detached, thus improving installation and wiring stability. Attached image description:

[0020] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings:

[0021] Figure 1 A side view of a network expansion module component that is easy to install, provided by the present invention;

[0022] Figure 2 A schematic diagram of the installation state of a convenient network expansion module component and its guide rail is provided by the present invention.

[0023] Figure 3 for Figure 2 Schematic diagram of a partial structure at part A in the middle;

[0024] Figure 4 for Figure 3Schematic diagram of a partial structure in part B;

[0025] Figure 5 A rear view structural diagram of a network expansion module component that is easy to install, provided by the present invention;

[0026] Figure 6 for Figure 5 A schematic diagram of the partial structure viewed from below;

[0027] Figure 7 This is a schematic diagram of the locking tongue in this invention;

[0028] Figure 8 for Figure 4 Another diagram with labels.

[0029] The following are the labeling instructions in the diagram: 1. Expansion module component housing; 2. Locking block; 21. Locking slot; 3. Locking rail mechanism; 31. Fixing plate; 311. Limiting block; 312. Accommodating notch; 313. Locking groove; 314. First rack; 32. Locking tongue; 321. Limiting protrusion; 322. Second rack; 323. Accommodating cavity; 324. Actuating groove; 3241. Actuating recess; 3242. Actuating through groove; 325. Guide slope; 33. Compression spring; 34. Cover plate; 35. Eccentric wheel; 351. First rotating shaft; 352. Second rotating shaft; 353. Rubber anti-slip layer; 36. Connecting rod; 9. Guide rail. Detailed implementation method:

[0030] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that in the embodiments of the present invention, all directional indications (such as up-down-left-right-forward-backward...) are only used to explain the relative positional relationship and movement between the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0033] like Figures 1-7As shown, a network expansion module assembly that is easy to install includes an expansion module assembly housing 1. The back of the expansion module assembly housing is provided with a locking block 2 that is fixedly connected to the housing. The locking block 2 has a locking groove 21 that is fastened to one side of a guide rail. The expansion module assembly housing is equipped with a rail locking mechanism 3 for locking onto the other side of the guide rail. The rail locking mechanism 3 includes a fixing plate 31 that is fixedly connected to the back of the expansion module assembly housing 1. A locking tongue 32 is slidably connected to the fixing plate 31. The locking tongue 32 is disposed opposite to the locking block 2. A compression spring 33 is provided between the locking tongue 32 and the fixing plate 31. The compression spring 33 is used to push the locking tongue 32 toward the locking block 2.

[0034] Using the above technical solution, during installation, the clip 2 on the module component is directly hung on the upper edge of the horizontally mounted guide rail 9, and the locking tongue 32 is attached to the lower edge of the guide rail 9. The expansion module component housing 1 is pressed, causing the lower edge of the guide rail to press against the locking guide slope 325. Under the pressure, the locking tongue 32 retracts away from the guide rail. After the locking tongue 32 passes the edge of the guide rail, under the action of the compression spring 33, the locking tongue 32 extends into the back of the guide rail 9, thereby clamping the lower part of the guide rail 9 between the expansion module component housing 1 and the locking tongue 32, and then installing the module component on the guide rail 9. When expansion installation is required, the expansion module component is directly installed next to the controller without having to remove and reinstall other components on the guide rail 9.

[0035] Specifically, the fixing plate 31 is provided with two opposing limiting blocks 311, with a receiving gap between the two limiting blocks 311 to accommodate the locking tongue 32. Limiting protrusions 321 are provided on both sides of the locking tongue 32. A receiving notch 312 is provided on each limiting block 311 to accommodate the limiting block 311 and the compression spring 33. The compression spring 33 is located on the side of the limiting protrusion 321 away from the locking block 2. One end of the compression spring 33 abuts against the side wall of the limiting protrusion 321, and the other end abuts against the bottom of the receiving notch 312. This allows the compression spring 33 to exert a spring force on the locking tongue 32, enabling the locking tongue 32 to engage with the back of the guide rail. Furthermore, the engagement of the limiting protrusions 321 and the receiving notch 312 limits the depth to which the locking tongue 32 engages with the guide rail.

[0036] Specifically, the outer surface of the limiting block 311 is provided with a snap-fit ​​groove 313, and the surface of the two limiting blocks 311 is provided with a cover plate 34 to limit the locking tongue 32 in the receiving gap. The cover plate 34 is provided with a protruding snap-fit ​​strip, which is inserted into the snap-fit ​​groove 313 to snap the cover plate 34 onto the limiting block 311. The cover plate 34 can limit the locking tongue 32 and the spring. The cover plate 34 cooperates with the snap-fit ​​groove 313 through the snap-fit ​​strip, which facilitates assembly.

[0037] Specifically, the cross-section of the snap-fit ​​strip is a T-shaped structure, and the cross-section of the snap-fit ​​groove 313 is a T-shaped groove.

[0038] Specifically, the fixing plate 31 has an installation groove on its surface that accommodates the gap. The installation groove contains a first rack 314 with teeth. The locking tongue 32 has a second rack 322 with the same teeth as the first rack 314 on its side near the fixing plate 31. The first rack 314 and the second rack 322 are connected by a drive gear through gear engagement. An eccentric wheel 35 is rotatably connected to the locking tongue 32. One side of the eccentric wheel 35 protrudes from the outer side of the locking tongue 32 near the fixing plate 31. The drive gear and the eccentric wheel 35 are connected by a connecting rod 36. When the drive gear moves toward the locking block 2, it drives the eccentric wheel 35 to rotate and abut against the back of the guide rail, so that the locking tongue 32 is clamped on the guide rail. As the locking tongue 32 engages with the back of the guide rail, it moves towards the locking block 2, causing the drive gear to move towards the locking block 2. The movement of the drive gear drives the eccentric wheel 35 to rotate via the connecting rod 36. Driven by the drive gear towards the locking block 2, the eccentric wheel 35 rotates out from the cavity 323 towards the back of the guide rail. Consequently, the edge of the eccentric wheel 35 presses against the back of the guide rail, thereby locking the rail locking mechanism 3 onto the guide rail. This prevents the expansion module assembly from moving along the guide rail, ensuring stable wiring and reducing the occurrence of malfunctions.

[0039] Specifically, the locking tongue 32 has a receiving cavity 323 on the side near the fixed plate 31. The eccentric wheel 35 is located in the receiving cavity 323. A first rotating shaft 351 and a second rotating shaft 352 are fixedly connected to the eccentric wheel 35. The first rotating shaft 351 is eccentrically arranged on the eccentric wheel 35 and rotatably connected to the locking tongue 32. A third rotating shaft is provided in the middle of the drive gear. A connecting rod 36 is rotatably connected to the third rotating shaft. The end of the connecting rod 36 away from the third rotating shaft is rotatably connected to the second rotating shaft 352. By eccentrically arranging the first rotating shaft 351, the outer edge of the eccentric wheel 35 can rotate out to the outside of the receiving cavity 323 when it rotates, thereby clamping the guide rail.

[0040] Specifically, to facilitate the removal of the expansion module assembly from the guide rail, the end of the locking tongue 32 furthest from the latch 2 has an actuating groove 324 extending through the fixing plate 31, with the actuating groove 324 protruding from the outside of the fixing plate 31. When removal is required, a flathead screwdriver is inserted into the actuating groove 324 to pry the locking tongue 32 outward, causing the locking tongue 32 to disengage from the guide rail.

[0041] Specifically, the actuating groove 324 includes an actuating recess 3241 and an actuating through groove 3242 located in the actuating recess 3241. The actuating through groove 3242 is provided to facilitate the insertion of a screwdriver or other tools, and to facilitate the pulling outward of the locking tongue 32.

[0042] Specifically, a guide slope 325 is provided on the side of the locking tongue 32 closest to the locking block 2, away from the fixing plate 31. The projected length L1 of the guide slope 325 along the length direction of the locking tongue 32 is greater than the length L2 of the locking tongue 32 extending into the bottom of the guide rail. Figure 8 As shown, this allows the guide ramp 325 to contact the guide rail during installation, thereby retracting the locking tongue 32 to avoid the bottom of the guide rail, making it easier for the locking tongue 32 to engage with the back of the guide rail.

[0043] Specifically, the locking tongue 32 has a chamfer on the side near the fixing plate 31 at the end close to the locking block 2. The chamfer guides the locking tongue 32 to easily engage with the gap on the back of the guide rail.

[0044] Specifically, a rubber anti-slip layer 353 is fixedly connected to the rim of the eccentric wheel 35. The rubber anti-slip layer 353 increases friction, thereby increasing the resistance of the eccentric wheel 35 to movement between the guide rails, thus preventing the module assembly from moving off the guide rails and improving the stability of the assembly installation.

[0045] The parts not covered in this technical solution are the same as or can be implemented using existing technologies.

[0046] The foregoing has shown and described the basic principles, main features, and characteristics of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A network expansion module component that is easy to install, characterized in that: The system includes an expansion module assembly housing (1), on the back of which is a locking block (2) fixedly connected to the housing, and the locking block (2) has a locking groove (21) for fastening to one side of the guide rail; the expansion module assembly housing is equipped with a rail locking mechanism (3) for locking to the other side of the guide rail, the rail locking mechanism (3) includes a fixing plate (31) fixedly connected to the back of the expansion module assembly housing (1), a locking tongue (32) is slidably connected to the fixing plate (31), the locking tongue (32) is disposed opposite to the locking block (2), and a compression spring (33) is provided between the locking tongue (32) and the fixing plate (31), the compression spring (33) is used to push the locking tongue (32) toward the locking block (2); The fixing plate (31) has a mounting groove on its surface that accommodates the gap. A first toothed rack (314) is provided in the mounting groove. A second toothed rack (322) with the same tooth profile as the first toothed rack (314) is provided on the side of the locking tongue (32) near the fixing plate (31). A drive gear is engaged between the first toothed rack (314) and the second toothed rack (322). An eccentric wheel (35) is rotatably connected to the locking tongue (32), with one side of the eccentric wheel (35) protruding from the outer surface of the locking tongue (32) near the fixing plate (31). The drive gear and the eccentric wheel (35) are connected by a connecting rod (36). The drive gear is used to drive the locking tongue towards the eccentric wheel. When the locking block (2) moves, it drives the eccentric wheel (35) to rotate and abut against the back of the guide rail, so that the locking tongue (32) is clamped on the guide rail. The locking tongue (32) has a receiving cavity (323) on the side near the fixed plate (31). The eccentric wheel (35) is located in the receiving cavity (323). The eccentric wheel (35) is fixedly connected to the first rotating shaft (351) and the second rotating shaft (352). The first rotating shaft (351) is eccentrically arranged on the eccentric wheel (35) and rotatably connected to the locking tongue (32). The middle part of the driving gear is provided with a third rotating shaft. The third rotating shaft is rotatably connected to a connecting rod (36). The end of the connecting rod (36) away from the third rotating shaft is rotatably connected to the second rotating shaft (352).

2. The network expansion module component that is easy to install according to claim 1, characterized in that: The fixing plate (31) is provided with two opposing limiting blocks (311), and there is a receiving gap between the two limiting blocks (311) to accommodate the locking tongue (32). The locking tongue (32) is provided with limiting protrusions (321) on both sides. The limiting block (311) is provided with a receiving notch (312) to accommodate the limiting block (311) and the compression spring (33). The compression spring (33) is located on the side of the limiting protrusion (321) away from the locking block (2). One end of the compression spring (33) abuts against the side wall of the limiting protrusion (321), and the other end of the compression spring (33) abuts against the bottom of the receiving notch (312).

3. The network expansion module component that is easy to install according to claim 2, characterized in that: The outer surface of the limiting block (311) is provided with a snap-fit ​​groove (313). The surface of the two limiting blocks (311) is provided with a cover plate (34) that limits the locking tongue (32) in the receiving gap. The cover plate (34) is provided with a protruding snap-fit ​​strip. The snap-fit ​​strip is inserted into the snap-fit ​​groove (313) to snap the cover plate (34) onto the limiting block (311).

4. The network expansion module component that is easy to install according to claim 3, characterized in that: The cross-section of the snap-fit ​​strip is a T-shaped structure, and the cross-section of the snap-fit ​​groove (313) is a T-shaped groove.

5. A network expansion module component that is easy to install according to claim 1, characterized in that: The locking tongue (32) has an actuating groove (324) at the end away from the locking block (2) that passes through the fixing plate (31). The actuating groove (324) protrudes to the outside of the fixing plate (31).

6. A network expansion module component that is easy to install according to claim 5, characterized in that: The actuating groove (324) includes an actuating recess (3241) and an actuating through groove (3242) located in the actuating recess (3241).

7. A network expansion module component that is easy to install according to claim 1, characterized in that: The locking tongue (32) has a guide slope (325) on the side away from the fixing plate (31) near the end of the locking block (2). The projected length of the guide slope (325) along the length direction of the locking tongue (32) is greater than the length of the locking tongue (32) extending into the bottom of the guide rail. The locking tongue (32) has a chamfer on the side near the fixing plate (31) near the end of the locking block (2).

8. A network expansion module component that is easy to install according to claim 1, characterized in that: The eccentric wheel (35) has a rubber anti-slip layer (353) fixedly connected to its wheel edge.

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