Plug guide structure for drawer-type switchgear

Abstract

The utility model provides a plug guide structure of drawer type power distribution cabinet, it includes framework, drawer unit, guide needle, auxiliary spare, a plurality of chambers are arranged vertically in the inside of framework, the drawer unit is inserted in the chamber, the tail of chamber and the tail of drawer unit are provided with the plug and the socket respectively which are connected with each other, the guide needle is fixedly arranged in the side wall of drawer unit, the side wall of chamber is provided with the auxiliary spare for the guide needle and is inserted, the plug guide structure of drawer type power distribution cabinet, through the rigid cooperation of guide needle and through -hole, makes the drawer and keeps accurate direction in the process of pushing, thoroughly solves the problem of the center line dislocation of plug and socket, the load is shared by the roller - track pair guide, reduces the insertion force and avoids the bending of guide needle, the swing rod - groove is locked in the insertion end point, prevents the drawer from retreating because of vibration, guarantees the continuous reliable electric connection, the push - pull spring one - key unlocking structure makes the operation of the maintenance drawer fast, safe, improves the maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of power distribution equipment technology, and in particular to a plug guide structure for a drawer-type power distribution cabinet. Background Technology

[0002] With the development of high and low voltage power distribution systems towards modularity and drawer-type designs, drawer-type distribution cabinets are widely used due to their ease of maintenance and strong circuit interchangeability. The drawer unit is electrically connected to the cabinet via a plug and socket. During the insertion process, it is crucial to ensure accurate alignment of the plug and socket; otherwise, poor contact or bent pins may occur, leading to damage.

[0003] Existing technologies typically involve adding simple guide pillars or sleeves to the drawer sidewalls, using the corresponding openings in the cabinet for rough positioning; some also incorporate rollers at the bottom of the drawer that contact the cabinet base to reduce pushing resistance and aid alignment. However, these structures only provide unidirectional or insufficiently flexible positioning, and the drawer is still prone to misalignment when perpendicular to the pushing direction, causing the plug and power strip centerline to malfunction. This results in lateral force during insertion, and over time, the pins may deform, overheat, or even lead to contact failure. Utility Model Content

[0004] The purpose of this utility model is to propose a plug guide structure for a drawer-type power distribution cabinet to solve the problems of easy misalignment of the plug and the power strip when the existing drawer is pushed in, and deformation of the pins due to lateral force.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A plug guide structure for a drawer-type power distribution cabinet includes a frame with multiple vertically arranged chambers inside, adjacent chambers being separated by partitions; a drawer unit inserted into the chamber, the drawer unit having a plug at its tail, and the chamber having a socket at its tail that mates with the plug; a guide pin fixed to the side wall of the drawer unit; and an auxiliary component fixed to the side wall of the chamber, the auxiliary component having a through hole for the guide pin to be inserted.

[0006] By adopting the above technical solution, the guide pin and the through hole cooperate to form a rigid guide, so that the drawer unit always maintains the correct position during the push-in process, eliminates the deviation of the center line between the plug and the power strip, and avoids the pin bearing lateral force.

[0007] Furthermore, a baffle is fixedly provided on the side of the chamber, the auxiliary component is horizontally installed on the baffle, a roller is provided at the rear of the drawer unit, and a track is provided at the bottom of the baffle for the roller to roll.

[0008] By adopting the above technical solution, the rollers and the track form a secondary guide, which shares the force of the guide pin, reduces frictional resistance, and improves the smoothness of pushing the drawer in.

[0009] Furthermore, the auxiliary component includes a U-shaped plate, the back plate of which is fixed to the baffle, and the through hole is formed on the two vertical plates of the U-shaped plate, the diameter of which is equal to the diameter of the guide pin.

[0010] By adopting the above technical solution, the U-shaped plate forms a closed guide frame, and the through hole and guide pin are matched with zero clearance, eliminating lateral wobbling and ensuring the coaxiality of the insertion.

[0011] Furthermore, the U-shaped plate is provided with a connecting plate, and a swing rod is rotatably mounted on the connecting plate. The middle part of the swing rod is rotatably connected to the connecting plate. The connecting plate is fixed inside the U-shaped plate, and the swing rod engages the guide pin.

[0012] By adopting the above technical solution, the swing rod automatically engages with the guide pin after the drawer is in position, preventing the drawer from moving backward due to vibration or misoperation, and maintaining a continuous and reliable connection of the plug and power strip.

[0013] Furthermore, the guide pin has a groove on its side, and the swing rod has a protrusion at one end, which engages with the groove.

[0014] By adopting the above technical solution, the engagement of the protrusion and the groove provides a clear positioning signal, enabling precise positioning of the drawer insertion endpoint.

[0015] Furthermore, a spring is sleeved on the guide pin, a guide rod is fixedly mounted on one end of the guide pin, one end of the spring abuts against the U-shaped plate, and the other end abuts against the guide rod, and the groove is formed on the outer periphery of the guide rod.

[0016] By adopting the above technical solution, the reverse force generated by the spring compression keeps the protrusion and groove in close contact, eliminates the gap between the parts, and prevents loosening of the contact caused by the slight movement of the drawer.

[0017] Furthermore, through slots are provided on the two vertical plates of the U-shaped plate, and a push plate is slidably disposed in the through slots. One end of the push plate extends out of the frame, and the other end contacts the tail of the swing rod.

[0018] By adopting the above technical solution, pushing the push plate can rotate the swing lever to release the jamming, achieving one-click unlocking and making the drawer easy to pull out.

[0019] Furthermore, a tension spring is provided between the swing rod and the U-shaped plate, with one end of the tension spring hooked to the swing rod and the other end hooked to the U-shaped plate.

[0020] By adopting the above technical solution, the tension spring provides a continuous restoring force, ensuring that the protrusion is always embedded in the groove without external force, thus enhancing the reliability of preventing loosening.

[0021] Compared with the prior art, the present invention has the following beneficial effects: The plug guide structure of the drawer-type power distribution cabinet described in this utility model maintains a precise orientation during the drawer push-in process through the rigid cooperation between the guide pin and the through hole, completely solving the problem of misalignment between the plug and the center line of the power strip; the roller-track pair guide shares the load, reduces the insertion force and prevents the guide pin from bending; the swing rod-groove locks automatically at the insertion end point to prevent the drawer from moving backward due to vibration and ensures a continuous and reliable electrical connection; the push plate-tension spring one-button unlocking structure makes the maintenance and extraction operation quick and safe, improving maintenance efficiency. Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0023] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the plug guide structure of the drawer-type power distribution cabinet described in this embodiment of the utility model; Figure 2 This is a schematic diagram of the internal structure of the plug guide structure of the drawer-type power distribution cabinet described in this embodiment of the utility model; Figure 3 This is an exploded view of the chamber and drawer unit described in an embodiment of the present invention; Figure 4 This is an exploded view of the chamber and drawer unit described in an embodiment of the present invention from another angle; Figure 5 This is a schematic diagram of the baffle and auxiliary components described in an embodiment of the present utility model; Figure 6 This is an exploded view of the guide pin and the U-shaped plate described in an embodiment of the present invention; Figure 7 This is a schematic diagram of the auxiliary component described in an embodiment of the present utility model from another angle.

[0024] Explanation of reference numerals in the attached figures: 1. Frame; 2. Chamber; 3. Partition; 4. Guide pin; 5. Groove; 6. Guide rod; 7. Spring; 8. Roller; 9. Drawer unit; 10. Auxiliary parts; 1001. U-shaped plate; 1002. Through hole; 1003. Connecting plate; 1004. Swing rod; 1005. Push plate; 1006. Tension spring; 11. Baffle; 12. Track. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "back" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] This embodiment relates to a plug guide structure for a drawer-type power distribution cabinet. In terms of overall structure, as follows... Figures 1-4 As shown, it includes a frame 1, a drawer unit 9, a guide pin 4, and an auxiliary component 10.

[0030] The frame 1 has multiple chambers 2 arranged vertically inside, and drawer units 9 are inserted into the chambers 2. The tail of the chambers 2 and the tail of the drawer units 9 are respectively provided with plugs and sockets that are connected to each other. The side wall of the drawer units 9 is fixedly provided with guide pins 4, and the side wall of the chambers 2 is provided with auxiliary parts 10 for inserting guide pins 4.

[0031] It is worth mentioning that the frame 1 is equipped with an outer shell. This distribution cabinet is a common MNS distribution cabinet in the prior art. Its wiring connection is also prior art, so it will not be described in detail here. Multiple chambers 2 are separated by partitions 3. A drawer unit 9 is accommodated between two partitions 3. Components are installed in the drawer unit 9. The components are connected to plugs. The drawer unit 9 is inserted into the chamber 2. When it moves to the end, the plug and power strip are connected, thereby realizing the connection of the circuit. The setting of auxiliary parts 10 and guide pins 4 can ensure the stability of the drawer unit 9 in the chamber 2 and also ensure the accuracy of plug and power strip insertion.

[0032] Based on the above overall introduction, this embodiment presents an exemplary structure of the plug guide structure for the drawer-type power distribution cabinet, such as... Figure 3 and Figure 4As shown, a baffle 11 is provided on one side of the chamber 2, and an auxiliary component 10 is horizontally mounted on the baffle 11. A roller 8 is provided at the rear of the drawer unit 9, and a track 12 for the roller 8 to rotate is provided at the bottom of the baffle 11. It should be noted that a plug and a power strip are also installed on the other side of the chamber 2. This arrangement facilitates the wiring connection of components in different positions inside the drawer. The purpose of installing the baffle 11 is to facilitate the placement of the auxiliary component 10. The roller 8 is located at the rear of the drawer unit 9. When the drawer unit 9 is inserted into the chamber 2, the roller 8 can enter the track 12, which also serves a guiding function and avoids damage to the plug and power strip.

[0033] As a preferred implementation method, such as Figure 5 and Figure 6 As shown, the auxiliary component 10 in this embodiment includes a U-shaped plate 1001 fixedly mounted on the baffle 11, and a through hole 1002 opened on the U-shaped plate 1001 for the guide pin 4 to be inserted. A swing rod 1004 for engaging the guide rod 6 is provided inside the U-shaped plate 1001. Specifically, the back plate of the U-shaped plate 1001 is fixed to the baffle 11 with screws. The through hole 1002 is opened on the two vertical plates of the U-shaped plate 1001. The size of the through hole 1002 is the same as the size of the guide pin 4. This arrangement ensures that the drawer unit 9 will not wobble when sliding, facilitating the insertion of plugs and power strips. The swing rod 1004 is located between the back plate of the U-shaped plate 1001 and the guide pin 4. When the drawer unit 9 moves to the designated position, the swing rod 1004 locks to prevent the drawer unit 9 from wobble in the cavity 2.

[0034] As a preferred option, such as Figure 7 As shown, in this embodiment, the guide pin 4 has a groove 5 for engaging the swing rod 1004, and the swing rod 1004 has a bent protrusion. A connecting plate 1003 for the swing rod 1004 to swing is installed on the U-shaped plate 1001. Specifically, the shape of the connecting plate 1003 is the same as that of the U-shaped plate 1001, and it partially covers the guide pin 4. The middle part of the swing rod 1004 is rotatably connected to the connecting plate 1003. When the guide pin 4 moves to the position of the swing rod 1004 along with the drawer unit 9, the protrusion of the swing rod 1004 engages with the groove 5. This arrangement can prevent the drawer unit 9 from shaking.

[0035] As a preferred option, such as Figure 6 and Figure 7As shown, in this embodiment, a spring 7 is sleeved on the guide pin 4. One end of the spring 7 is connected to the U-shaped plate 1001, and the other end is connected to the guide pin 4. One end of the guide pin 4 is tapered, and the other end is provided with a guide rod 6. Specifically, when the protrusion of the swing rod 1004 engages with the groove 5 of the guide pin 4, the spring 7 is in a compressed state. This arrangement can further prevent the drawer unit 9 from shaking. The diameter of the guide rod 6 is larger than the diameter of the guide pin 4. The other end of the spring 7 abuts against the guide rod 6. After the guide rod 6 moves with the drawer unit 9 to the U-shaped plate 1001, the spring 7 is compressed, and the protrusion is inserted into the groove 5. The bidirectional force improves the stability of the drawer unit 9. The through holes 1002 on the two vertical plates of the U-shaped plate 1001 are respectively for the guide pin 4 and the guide rod 6 to pass through. The groove 5 can be opened on the guide rod 6. After the guide rod 6 moves into the U-shaped plate 1001, it directly engages with the protrusion.

[0036] As a preferred option, such as Figure 6 As shown, in this embodiment, a through groove is provided on the U-shaped plate 1001, and a push plate 1005 is slidably disposed in the through groove. The push plate 1005 passes through the connector to control the swing of the swing rod 1004. A tension spring 1006 is provided between the swing rod 1004 and the U-shaped plate 1001. Specifically, the two ends of the tension spring 1006 are hooked onto the swing rod 1004 and the U-shaped plate 1001, respectively. The tension spring 1006 can control the protrusion to always be engaged in the groove 5. The through groove is opened on the two vertical plates of the U-shaped plate. The push plate 1005 extends out from the frame 1 and the drawer unit 9. The push plate 1005 slides in the frame 1 and the drawer unit 9. When the push plate 1005 is inserted into the through groove and contacts the push plate 1005, the tail of the push plate 1005 swings, the tension spring 1006 is stressed, and the protrusion disengages from the groove 5. This arrangement ensures that the drawer unit 9 can be pulled out from the cavity 2.

[0037] In this embodiment, the plug guide structure of the drawer-type power distribution cabinet uses the rigid engagement of the guide pin 4 and the through hole 1002 to maintain the precise orientation during the drawer push-in process, completely solving the problem of misalignment between the plug and the center line of the power strip; the roller 8-track 12 pair of guides share the load, reducing the insertion force and preventing the guide pin 4 from bending; the swing rod 1004-groove 5 automatically locks at the insertion end point to prevent the drawer from moving backward due to vibration and ensure a continuous and reliable electrical connection; the push plate 1005-tension spring 1006 one-button unlocking structure makes the maintenance and extraction operation fast and safe, improving maintenance efficiency.

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

Claims

1. A plug guide structure for a drawer-type power distribution cabinet, characterized in that, comprising: a frame (1), wherein a plurality of chambers (2) are vertically arranged inside the frame (1), and adjacent chambers (2) are separated by a partition plate (3); a drawer unit (9), inserted into the chamber (2), wherein a plug is arranged at the tail part of the drawer unit (9), and a power strip matched with the plug is arranged at the tail part of the chamber (2); a guide pin (4), fixed on the side wall of the drawer unit (9); an auxiliary member (10), fixed on the side wall of the chamber (2), wherein the auxiliary member (10) is provided with a through hole (1002) for the guide pin (4) to insert into.

2. The plug guiding structure of the drawer-type power distribution cabinet according to claim 1, characterized in that: A baffle plate (11) is fixedly arranged on the side surface of the chamber (2), the auxiliary member (10) is transversely mounted on the baffle plate (11), a roller (8) is arranged at the tail part of the drawer unit (9), and a rail (12) for the roller (8) to roll is arranged at the bottom of the baffle plate (11).

3. The plug guiding structure of the drawer-type power distribution cabinet according to claim 2, characterized in that: The auxiliary member (10) comprises a U-shaped plate (1001), the back plate of the U-shaped plate (1001) is fixed on the baffle plate (11), the through holes (1002) are opened on two vertical plates of the U-shaped plate (1001), and the diameter of the through hole (1002) is equal to the diameter of the guide pin (4).

4. The plug guiding structure of the drawer-type power distribution cabinet according to claim 3, characterized in that: A connecting plate (1003) is arranged in the U-shaped plate (1001), a swinging rod (1004) is rotatably arranged on the connecting plate (1003), the middle part of the swinging rod (1004) is rotatably connected with the connecting plate (1003), the connecting plate (1003) is fixed inside the U-shaped plate (1001), and the swinging rod (1004) clamps the guide pin (4).

5. The plug guiding structure of the drawer-type power distribution cabinet according to claim 4, characterized in that: A groove (5) is opened on the side surface of the guide pin (4), and a protruding block is arranged at one end of the swinging rod (1004), and the protruding block is clamped with the groove (5).

6. The plug guiding structure of the drawer-type power distribution cabinet according to claim 5, characterized in that: A spring (7) is sleeved on the guide pin (4), one end of the guide pin (4) is fixedly provided with a guide rod (6), one end of the spring (7) abuts against the U-shaped plate (1001), the other end abuts against the guide rod (6), and the groove (5) is opened on the outer periphery of the guide rod (6).

7. The plug guiding structure of the drawer-type power distribution cabinet according to claim 4, characterized in that: Two vertical plates of the U-shaped plate (1001) are provided with through grooves, a push plate (1005) is slidably arranged in the through grooves, one end of the push plate (1005) extends out of the frame (1), and the other end is in contact with the tail part of the swinging rod (1004).

8. The plug guiding structure of the drawer-type power distribution cabinet according to claim 4, characterized in that: A tension spring (1006) is provided between the swing rod (1004) and the U-shaped plate (1001). One end of the tension spring (1006) is hooked to the swing rod (1004), and the other end is hooked to the U-shaped plate (1001).

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