Guide rail device, power distribution unit and power plug-in frame

Abstract

The utility model relates to a guide rail device, a power distribution unit and a power plug-in frame. The guide rail device comprises a guide rail body provided with a first mounting plate and a second mounting plate which are vertically opposite, and a first bent edge is formed on the front side of the first mounting plate; the mounting pieces are fixed on the front side of the first bent edge side by side, and the upper end of each mounting piece is higher than the first mounting plate; and the bus tooth row is fixedly connected below the second mounting plate in an insulating manner. The first bent edge is provided with a plurality of first mounting hole arrays corresponding to the mounting pieces side by side, and each mounting piece is provided with a second mounting hole array matched with the first mounting hole array. And each mounting piece selectively penetrates through one group of second mounting holes in the second mounting hole array and one group of first mounting holes in the first mounting hole array through fasteners and is fixed at different preset heights on the first bent edge, so that air switches with different sizes can be compatibly mounted by matching with the bus tooth row, and the mounting and the dismounting are convenient and fast.

Description

Technical Field

[0001] This application relates to power distribution technology, and more specifically, to a rail device, a power distribution unit, and a power socket. Background Technology

[0002] The communication power supply frame is a core component of a communication system, primarily used to provide a stable and reliable DC power supply to communication equipment. Its main components include the frame body, power distribution unit, monitoring unit, rectifier module, and surge protection extension module. The frame body serves as the framework of the entire system, providing installation space and busbar connections for easy module installation and fixation. The power distribution unit is responsible for power input and output distribution, including AC and DC power distribution, ensuring a stable power supply. Within the power distribution unit, DC power from the rectifier module is typically supplied to the communication equipment via a DC busbar. Multiple output branches ensure a stable power supply for each device. Commonly used devices to implement multiple output branches are circuit breakers. Multiple circuit breakers are mounted via DIN rails and arranged together to make the output branches controllable, maintainable, and centrally managed, forming the main power distribution unit component.

[0003] However, when users require compatibility with different capacities, the required circuit breaker models and capacities vary, resulting in inconsistent circuit breaker housing dimensions. Conventional DIN rails cannot adjust the installation height to accommodate different circuit breaker sizes, thus failing to meet the compatibility requirements for installing circuit breakers of varying sizes. Furthermore, after installing the circuit breaker and busbar gear on a conventional DIN rail, the busbar gear can obstruct the circuit breaker's rail clips, requiring the busbar gear to be removed before the circuit breaker can be removed for replacement, which does not meet the needs for quick installation and maintenance. Utility Model Content

[0004] The technical problem to be solved by this application is to provide a rail device that is compatible with air switches of different sizes and can be quickly installed and removed, and a power distribution unit and power supply frame using such rail device, in view of the above-mentioned defects of the prior art.

[0005] This application, in order to solve its technical problem, proposes a guide rail device in the first aspect, comprising: a guide rail body having a first mounting plate and a second mounting plate that are vertically opposed, the front side of the first mounting plate forming a first bent edge extending downward toward the second mounting plate; a plurality of mounting members fixed side-by-side to the front side of the first bent edge, with the upper end of each mounting member protruding above the first mounting plate; a busbar toothed row, insulatedly connected and fixed below the second mounting plate, the busbar toothed row forming a plurality of upwardly bent connecting feet at the front of the guide rail body; wherein, the first bent edge has a plurality of first mounting holes arranged side-by-side corresponding to the plurality of mounting members, and each mounting member has a... A second mounting hole array; the first mounting hole array has at least two sets of first mounting holes spaced longitudinally, and the second mounting hole array has at least one set of second mounting holes that can be selectively fitted with one set of first mounting holes from the at least two sets of first mounting holes; or, the second mounting hole array has at least two sets of second mounting holes spaced longitudinally, and the first mounting hole array has at least one set of first mounting holes that can be selectively fitted with one set of second mounting holes from the at least two sets of second mounting holes; each mounting member is selectively fixed to a predetermined height on the first bent edge by fasteners passing through one set of second mounting holes and one set of first mounting holes.

[0006] According to one embodiment of the guide rail device according to the first aspect of this application, the first mounting hole array on the first bent edge has a first group of first mounting holes and a second group of first mounting holes that are longitudinally spaced apart, and the second mounting hole array on the mounting member has a second group of second mounting holes. The mounting member is fixed at two different heights on the first bent edge by the first group of first mounting holes and the second group of first mounting holes respectively through the second group of second mounting holes.

[0007] According to one embodiment of the guide rail device according to the first aspect of this application, the second mounting hole array on the mounting member has a first group of second mounting holes and a second group of second mounting holes that are longitudinally spaced apart, and the first mounting hole array on the first bent edge has a first group of first mounting holes. The mounting member is fixed at two different heights on the first bent edge by cooperating with the first group of second mounting holes and the second group of second mounting holes with a first group of first mounting holes, respectively.

[0008] According to one embodiment of the guide rail device according to the first aspect of this application, the first mounting hole array on the first bent edge has a first group of first mounting holes and a second group of first mounting holes that are longitudinally spaced and laterally staggered. The second mounting hole array on the mounting member has a first group of second mounting holes and a second group of second mounting holes that are laterally staggered. The mounting member is fixed to a predetermined height on the first bent edge by cooperating with the first group of second mounting holes and the first group of first mounting holes, and is fixed to another predetermined height on the first bent edge by cooperating with the second group of second mounting holes and the second group of first mounting holes.

[0009] According to one embodiment of the guide rail device described in the first aspect of this application, the first mounting hole array on the first bent edge is a press-fit screw hole, the second mounting hole array on the mounting member is a countersunk hole, and the fastener is a countersunk screw that is threaded through the countersunk hole and the press-fit screw hole for locking.

[0010] According to one embodiment of the guide rail device described in the first aspect of this application, the guide rail body is made of sheet metal bent into a U-shape, and has a connecting plate and a first mounting plate and a second mounting plate extending forward from the upper and lower ends of the connecting plate. The left and right ends of the connecting plate, the first mounting plate and the second mounting plate are bent and stacked to form a fixing part.

[0011] According to one embodiment of the guide rail device according to the first aspect of this application, the first bent edge is formed in a rearwardly recessed limiting cut on the front side of the first mounting plate.

[0012] According to one embodiment of the guide rail device according to the first aspect of this application, the mounting member is plate-shaped and fixed to the front side of the first bent edge, and the lower end of the mounting member is bent backward below the first bent edge to form a second bent edge.

[0013] According to one embodiment of the guide rail device described in the first aspect of this application, the guide rail device further includes a plurality of plastic connecting posts, the upper and lower ends of which are respectively connected to a second mounting plate and a busbar toothed rack to fix the busbar toothed rack below the second mounting plate.

[0014] According to one embodiment of the guide rail device described in the first aspect of this application, the busbar toothed row includes a plurality of branch toothed rows arranged side by side corresponding to the plurality of mounting components, and each branch toothed row is connected and fixed to the underside of the second mounting plate by the plastic connecting post.

[0015] To address its technical problem, this application proposes a power distribution unit in a second aspect, comprising a guide rail device and multiple air switches mounted side-by-side on the guide rail device. The guide rail device is the aforementioned guide rail device. Each mounting component of the guide rail device is fixed at a predetermined height on the first bent edge according to the air switch to be installed. The upper end of the mounting component is snapped into a slot on the rear side of the corresponding air switch, and the connecting foot of the busbar toothed row is inserted into the terminal mounting hole at the bottom of the corresponding air switch, thereby fixing the air switch to the guide rail device.

[0016] In order to solve its technical problem, this application proposes a power supply frame in a third aspect, including a frame body, the frame body having opposing first side plates and second side plates, and also including the aforementioned power distribution unit. The left and right ends of the guide rail body of the guide rail device of the power distribution unit are respectively connected and fixed to the first side plate and the second side plate to install the power distribution unit between the first side plate and the second side plate.

[0017] The guide rail device, power distribution unit, and power socket of this application have the following advantages: The guide rail device according to the embodiment of this application forms a first bent edge on the front side of the first mounting plate of the guide rail body and opens a plurality of first mounting hole arrays corresponding to a plurality of mounting parts on the first bent edge. A second mounting hole array is opened on each mounting part. By cooperating with the first mounting hole array and the second mounting hole array, each mounting part can be selectively fixed at different predetermined heights on the first bent edge. The busbar toothed row connected and fixed to the second mounting plate below the guide rail body can be compatible with the installation of air switches of different sizes. Moreover, the installation and disassembly of the air switches are convenient and quick, which is conducive to the replacement and maintenance of the air switches. Attached Figure Description

[0018] The present application will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the power socket frame according to the first embodiment of this application;

[0020] Figure 2 yes Figure 1 The diagram shows the structure of the power distribution unit.

[0021] Figure 3 yes Figure 2 A schematic diagram of the guide rail device shown;

[0022] Figure 4 yes Figure 3 The diagram shows the structure of the guide rail assembly.

[0023] Figure 5 yes Figure 3 A schematic diagram of the mounting components shown;

[0024] Figure 6 yes Figure 3 The diagram shows the structure of the plastic connecting column.

[0025] Figure 7 This is a schematic diagram of the busbar structure according to the second embodiment of this application;

[0026] Figure 8 yes Figure 3 A schematic diagram of the cross-section of the guide rail device shown;

[0027] Figure 9 yes Figure 2 A schematic diagram of the cross-section of the power distribution unit shown;

[0028] Figure 10 This is a schematic diagram of the guide rail device according to the third embodiment of this application;

[0029] Figure 11 This is a schematic diagram of the guide rail device according to the fourth embodiment of this application.

[0030] Reference numerals: 100-Power socket frame; 10-Frame body; 11-Mounting cavity; 12-First side plate; 13-Second side plate; 14-Opening; 20-Power distribution unit; 21-Guide rail device; 211-Guide rail body; 2111-Connecting plate; 2112-First mounting plate; 2113-Second mounting plate; 2114-First bending edge; 2115-Limiting notch; 2116-Fixing part; 2117-First mounting hole array; 2117a-First group of first mounting holes; 2117b-Second group of first mounting holes; 2118-The... Three mounting holes; 2119 - Through hole; 212 - Mounting component; 2121 - Second mounting hole array; 2121a - First group of second mounting holes; 2121b - Second group of second mounting holes; 2122 - Second bent edge; 213 - Busbar toothed row; 213a - Branch toothed row; 2131 - Fourth mounting hole; 2132 - Connecting foot; 214 - Plastic connecting post; 2141 - Embedded nut; 215 - Fastener; 22 - Air switch; 221 - First air switch; 222 - Second air switch; 223 - Slot; 224 - Terminal mounting hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the embodiments and features described herein can be combined with each other unless otherwise specified.

[0032] Figure 1A schematic diagram of the power socket 100 according to the first embodiment of this application is shown. Figure 2 A schematic diagram of the power distribution unit 20 in the power socket 100 is shown. See also... Figure 1 and Figure 2 As shown, the power socket 100 includes a socket body 10 and a power distribution unit 20. The socket body 10 is formed by multiple plates to create a mounting cavity 11, and has a first side plate 12 and a second side plate 13 facing each other, with an opening 14 formed on the front side of the first side plate 12 and the second side plate 13. The power distribution unit 20 mainly consists of a guide rail device 21 and multiple air switches 22 mounted side by side on the guide rail device 21. The left and right ends of the guide rail device 21 are respectively connected and fixed to the first side plate 12 and the second side plate 13, thereby installing the entire power distribution unit 20 in the mounting cavity 11 of the socket body 10 between the first side plate 12 and the second side plate 13, and exposing the multiple air switches 22 on the guide rail device 21 towards the opening 14 for easy wiring operations.

[0033] See further Figure 3 As shown, the guide rail device 21 according to the first embodiment of this application mainly consists of a guide rail body 211, multiple mounting parts 212, and a busbar gear row 213. See details... Figure 3 Combination Figure 4 As shown, the guide rail body 211 can be bent into a U-shape from sheet metal, and has a vertical connecting plate 2111 and a first mounting plate 2112 and a second mounting plate 2113 extending forward from the upper and lower ends of the connecting plate 2111. The left and right ends of the connecting plate 2111 are bent forward, while the left and right ends of the first mounting plate 2112 and the second mounting plate 2113 are bent downward and upward, respectively, and superimposed on the outer side of the connecting plate 2111, thereby forming fixing parts 2116 at the left and right ends of the guide rail body 211, for fixed connection with the first side plate 12 and the second side plate 13 of the insert frame body 10. See also... Figure 3 Combination Figure 4 As shown, the front side of the first mounting plate 2112 has a rearwardly recessed limiting cutout 2115, and a first bent edge 2114 extending downward toward the second mounting plate 2113 is formed at the rear end of the limiting cutout 2115. Multiple mounting pieces 212 are fixed side-by-side to the front side of the first bent edge 2114, and can be selectively fixed at a predetermined height on the first bent edge 2114 according to the different capacities and sizes of the air switches 22 to be installed, ensuring that the upper end of each mounting piece 212 protrudes above the first mounting plate 2112 for mounting the air switch 22. See further details. Figure 3 Combination Figure 5 As shown, the mounting member 212 is plate-shaped and fixed to the front side of the first bending edge 2114. Preferably, the lower end of the mounting member 212 is bent backward in the direction below the first bending edge 2114 to form a second bending edge 2122, so as to increase the strength of the mounting member 212.

[0034] See further Figure 4 Combination Figure 5 As shown, the first bent edge 2114 has multiple first mounting hole arrays 2117 arranged side by side, corresponding to multiple mounting components 212. Each mounting component 212 has a second mounting hole array 2121. The mounting height of each mounting component 212 on the first bent edge 2114 can be adjusted by the mating installation between the first mounting hole array 2117 and the second mounting hole array 2121. Specifically... Figure 4 and Figure 5 In the first embodiment shown, the first mounting hole array 2117 on the first bent edge 2114 has a first group of first mounting holes 2117a and a second group of first mounting holes 2117b that are longitudinally spaced and laterally staggered. Correspondingly, the second mounting hole array 2121 on the mounting member 212 has a first group of second mounting holes 2121a and a second group of second mounting holes 2121a that are laterally staggered. By fastening the first group of second mounting holes 2121a on the mounting member 213 with the first group of first mounting holes 2117a on the upper part of the first bent edge 2114, the mounting member 212 can be fixed at a relatively higher predetermined height on the first bent edge 2114 (see [reference]). Figure 3 The three mounting brackets on the left side of the middle section are used to install the first air switch 221, which has a relatively larger capacity and size (see [reference]). Figure 2 (As shown). By engaging the second set of second mounting holes 2121b on the mounting member 213 with the second set of first mounting holes 2117b on the lower part of the first bent edge 2114, the mounting member 212 can be fixed at a relatively lower predetermined height on the first bent edge 2114 (see Figure 2121b). Figure 3 The four mounting brackets on the right side of the center are used to install a second air switch 222, which has a relatively smaller capacity and size (see [reference]). Figure 2 (As shown). In specific implementation, the array of multiple first mounting holes 2117 on the first bent edge 2114 are all press-fit screw holes, the array of second mounting holes 2121 on the mounting member 212 are countersunk holes, and the fastener 215 can be, for example, a countersunk screw that passes through the countersunk hole on the mounting member 212 and the press-fit screw hole on the first bent edge 2114 to lock the thread, thereby fixing the mounting member 212 at a predetermined height on the first bent edge 2114.

[0035] See also Figure 3 As shown, the busbar toothed rack 213 is composed of multiple branch toothed racks 213a arranged side by side corresponding to multiple mounting parts 212, and is fixed to the same height below the second mounting plate 2113 of the guide rail body 211 through multiple plastic connecting posts 214 with insulation connection. Specifically, in conjunction with... Figure 3 , Figure 4 and Figure 6As shown, the second mounting plate 2113 of the guide rail body 211 has a row of third mounting holes 2118 corresponding to multiple branch tooth rows 213a. Each branch tooth row 213a has a corresponding fourth mounting hole 2131. Each plastic connecting post 214 has an embedded nut 2141 at both its upper and lower ends. The upper end is connected to the second mounting plate 2113 by, for example, a bolt passing through a third mounting hole 2118 on the second mounting plate 2113 and locking it with the embedded nut 2141. The lower end is connected to the branch tooth row 213a by, for example, a bolt passing through a fourth mounting hole 2131 on the branch tooth row 213a and locking it with the embedded nut 2141, thereby fixing multiple branch tooth rows 213a to the bottom of the second mounting plate 2113. Furthermore, each branch tooth row 213a forms an upwardly bent connecting leg 2132 at the front of the guide rail body 211 for cooperating with the mounting component 212 to install the air switch 22. According to different embodiments of this application, see Figure 7 As shown, the busbar gear 213 can also be a single row, with a row of fourth mounting holes 2131 opposite a row of third mounting holes 2118 on the second mounting plate 2113, and a row of upward-bent connecting feet 2132 formed in front of the guide rail body 211 for mounting multiple air switches 22 together with multiple mounting parts 212. Furthermore, to facilitate the connection and fixation of the busbar gear 213 to the underside of the second mounting plate 2113 via plastic connecting posts 214, see [reference needed]. Figure 4 As shown, the first mounting plate 2112 of the guide rail body 211 also has a row of multiple through holes 2119 opposite to a row of multiple third mounting holes 2118 on the second mounting plate 2113. The through holes 2119 are relatively large, so that screwdrivers and other installation tools can pass through from above and reach the third mounting holes 2118 on the second mounting plate 2113 to connect to the plastic connecting post 214.

[0036] When installing multiple air switches 22 in the guide rail device 21 according to the first embodiment of this application, first refer to... Figure 3 Combination Figure 8 As shown, the first air switch 221, which is relatively larger in size among the multiple air switches 22 to be installed, has its corresponding mounting piece 212 adjusted and fixed at a relatively higher predetermined height on the first bent edge 2114 of the guide rail body 211. The second air switch 222, which is relatively smaller in size to be installed, has its corresponding mounting piece 212 adjusted and fixed at a relatively lower predetermined height on the first bent edge 2114 of the guide rail body 211. The busbar 213 is then connected and fixed below the second mounting plate 2113 of the guide rail body 211 via multiple plastic connecting posts 214. Then refer to... Figure 9As shown, align the slots 223 on the rear of each air switch 22 with the upper end of the corresponding mounting piece 212 and insert them. Align the wiring terminal mounting holes 224 on the bottom of each air switch 22 with the connecting feet 2132 of the busbar gear 213 and insert them. Then, tighten the wiring screws inside the air switch 22 with the connecting feet 2132 of the busbar gear 213. This will allow each air switch 22 to be installed and fixed on the guide rail device 21 and electrically connected to the busbar gear 213. Different sizes of air switches 22 can be accommodated by adjusting the height of the mounting piece 212 on the first bending plate 2114. The entire installation process is convenient and quick. Similarly, when removing the air switch 22, simply loosen the wiring screws to pull it out, facilitating the replacement and maintenance of the air switch 22.

[0037] According to the first embodiment of this application, the guide rail device 21 achieves installation position adjustment at two predetermined heights on the first bending edge 2114 for each mounting member 212 by cooperating with the first set of first mounting holes 2117a and second set of first mounting holes 2117a, which are longitudinally spaced and laterally staggered in the first mounting hole array 2117 on the first bending edge 2114, and the first set of second mounting holes 2121a and second set of second mounting holes 2121a and second set of second mounting holes 2121b, which are laterally staggered in the second mounting hole array 2121 on the mounting member 212. This allows for compatible installation of two different sizes of air switches 22. Obviously, according to different embodiments of this application, the cooperation between the first mounting hole array 2117 on the first bending edge 2114 and the second mounting hole array 2121 on the mounting member 212 can also take other different forms. For example, see... Figure 10 As shown, in the guide rail device 21 according to the second embodiment of this application, the second mounting hole array 2121 on the mounting member 212 has a first group of second mounting holes 2121a and a second group of second mounting holes 2121b that are longitudinally spaced apart. The first mounting hole array 2117 on the first bent edge 2114 has only one group of first mounting holes. The mounting member 212 can selectively engage with the first group of second mounting holes 2121a and the second group of second mounting holes 2121b respectively with the first group of first mounting holes on the first bent edge 2114, and can be fixed at two different heights on the first bent edge 2114. For example, see... Figure 11 As shown, in the guide rail device 21 according to the third embodiment of this application, the first mounting hole array 2117 on the first bending edge 2114 has a first group of first mounting holes 2117a and a second group of first mounting holes 2117b that are longitudinally spaced apart. The second mounting hole array 2121 on the mounting member 212 has only one group of second mounting holes. The mounting member 212 can selectively cooperate with the first group of first mounting holes 2117a and the second group of first mounting holes 2117b on the first bending edge 2114 through the group of second mounting holes of the second mounting hole array 2121, and can be fixed at two different heights on the first bending edge 2114.

[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A guide rail device (21), characterized in that, include: The guide rail body (211) has a first mounting plate (2112) and a second mounting plate (2113) that are opposite each other. The front side of the first mounting plate (2112) forms a first bent edge (2114) that extends downward toward the second mounting plate (2113). Multiple mounting pieces (212) are fixed side by side to the front side of the first bent edge (2114), and the upper end of each mounting piece (212) is higher than the first mounting plate (2112); Busbar toothed rack (213) is insulated and fixed below the second mounting plate (2113). The busbar toothed rack (213) forms multiple upwardly bent connecting feet (2132) in front of the guide rail body (211). The first bent edge (2114) has a plurality of first mounting hole arrays (2117) arranged side by side, corresponding to the plurality of mounting components (212), and each mounting component (212) has a second mounting hole array (2121); the first mounting hole array (2117) has at least two sets of first mounting holes arranged longitudinally at intervals, and the second mounting hole array (2121) has at least one set of second mounting holes that can be selectively fitted with one set of first mounting holes from the at least two sets of first mounting holes; or, the second mounting hole array (2121) has at least two sets of second mounting holes arranged longitudinally at intervals, and the first mounting hole array (2117) has at least one set of first mounting holes that can be selectively fitted with one set of second mounting holes from the at least two sets of second mounting holes. Each mounting piece (212) is optionally fixed to a predetermined height on the first bent edge (2114) by fasteners (215) passing through a set of second mounting holes and a set of first mounting holes.

2. The guide rail device (21) according to claim 1, characterized in that, The first mounting hole array (2117) on the first bent edge (2114) has a first group of first mounting holes (2117a) and a second group of first mounting holes (2117b) distributed longitudinally. The second mounting hole array (2121) on the mounting member (212) has a second group of second mounting holes. The mounting member (212) is fixed at two different heights on the first bent edge (2114) by the first group of first mounting holes (2117a) and the second group of first mounting holes (2117b) respectively through the second group of second mounting holes.

3. The guide rail device (21) according to claim 1, characterized in that, The second mounting hole array (2121) on the mounting member (212) has a first group of second mounting holes (2121a) and a second group of second mounting holes (2121b) distributed longitudinally. The first mounting hole array (2117) on the first bent edge (2114) has a first group of mounting holes. The mounting member (212) is fixed at two different heights on the first bent edge (2114) by cooperating with the first group of second mounting holes (2121a) and the second group of second mounting holes (2121b) with the first group of first mounting holes respectively.

4. The guide rail device (21) according to claim 1, characterized in that, The first mounting hole array (2117) on the first bent edge (2114) has a first set of first mounting holes (2117a) and a second set of first mounting holes (2117b) that are longitudinally spaced and laterally staggered. The second mounting hole array (2121) on the mounting member (212) has a first set of second mounting holes (2121a) and a second set of second mounting holes (2121b) that are laterally staggered. The mounting member (212) is fixed to the first bent edge (2114) at a predetermined height by cooperating with the first set of second mounting holes (2121a) and the first set of first mounting holes (2117a), and is fixed to the first bent edge (2114) at another predetermined height by cooperating with the second set of second mounting holes (2121b) and the second set of first mounting holes (2117b).

5. The guide rail device (21) according to any one of claims 1-4, characterized in that, The first mounting hole array (2117) on the first bent edge (2114) is a press-fit screw hole, the second mounting hole array (2121) on the mounting component (212) is a countersunk hole, and the fastener (215) is a countersunk screw that passes through the countersunk hole and the press-fit screw hole for thread locking.

6. The guide rail device (21) according to claim 1, characterized in that, The guide rail body (211) is made of sheet metal bent into a U-shape, and has a connecting plate (2111) and a first mounting plate (2112) and a second mounting plate (2113) extending forward from the upper and lower ends of the connecting plate (2111). The left and right ends of the connecting plate (2111), the first mounting plate (2112) and the second mounting plate (2113) are bent and stacked to form a fixing part (2116).

7. The guide rail device (21) according to claim 6, characterized in that, The first bent edge (2114) is formed in the rearward recessed limiting cut (2115) on the front side of the first mounting plate (2112).

8. The guide rail device (21) according to claim 7, characterized in that, The mounting component (212) is plate-shaped and fixed to the front side of the first bending edge (2114). The lower end of the mounting component (212) is bent backward in the direction below the first bending edge (2114) to form a second bending edge (2122).

9. The guide rail device (21) according to claim 1, characterized in that, The guide rail device (21) also includes a plurality of plastic connecting posts (214), the upper and lower ends of which are connected to the second mounting plate (2113) and the busbar toothed row (213) respectively to fix the busbar toothed row (213) below the second mounting plate (2113).

10. The guide rail device (21) according to claim 9, characterized in that, The busbar toothed row (213) includes multiple branch toothed rows (213a) arranged side by side corresponding to the multiple mounting parts (212), and each branch toothed row (213a) is connected and fixed to the bottom of the second mounting plate (2113) through the plastic connecting post (214).

11. A power distribution unit (20), comprising a guide rail device (21) and a plurality of air switches (22) mounted side-by-side on the guide rail device (21), characterized in that, The guide rail device (21) is the guide rail device (21) as described in any one of claims 1-10. Each mounting part (212) of the guide rail device (21) is fixed at a predetermined height on the first bent edge (2114) according to the required air switch (22). The upper end of the mounting part (212) is inserted into the slot (223) on the rear side of the corresponding air switch (22). The connecting foot (2132) of the busbar tooth row (213) is inserted into the terminal mounting hole (224) at the bottom of the corresponding air switch (22), thereby fixing the air switch (22) on the guide rail device (21).

12. A power socket frame (100), comprising a frame body (10), the frame body (10) having opposing first side plates (12) and second side plates (13), characterized in that, It also includes the power distribution unit (20) as described in claim 11, wherein the left and right ends of the guide rail body (211) of the guide rail device (21) of the power distribution unit (20) are respectively connected and fixed to the first side plate (12) and the second side plate (13) to install the power distribution unit (20) between the first side plate (12) and the second side plate (13).

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