A power distribution cabinet frame

By combining the power distribution cabinet locking mechanism and the electric telescopic rod, the instability of the power distribution cabinet frame during fixing and movement is solved, achieving precise clamping and locking, adapting to different sizes and vibration environments, and improving the ease of operation and safety.

CN224342795UActive Publication Date: 2026-06-09SUZHOU XIANGCHANG METAL PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU XIANGCHANG METAL PROD CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing power distribution cabinet frame is unstable when fixed and moved, especially in high-frequency vibration environments where it is prone to loosening. Furthermore, the traditional locking structure is difficult to adapt to differences in cabinet size, resulting in insecure fixing or damage.

Method used

It adopts two sets of power distribution cabinet locking mechanisms, combined with electric telescopic rods and casters. Utilizing the design of reverse toothed slide rails and manual insert plates, it achieves precise clamping and locking through the preload of springs and a self-locking mechanism, dynamically compensating for dimensional errors and ensuring stability.

Benefits of technology

It achieves a stable fixation of the power distribution cabinet, preventing loosening and damage, improving ease of operation and safety, and adapting to different sizes and vibration environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of switchgear cabinet frames, it is related to switchgear cabinet frame technical field, comprising: bottom support mechanism, the bottom support mechanism is used to assist the movement of entire device;Switchgear cabinet locking mechanism, the switchgear cabinet locking mechanism is provided with two groups, the switchgear cabinet locking mechanism is located above bottom support mechanism setting, and two groups The switchgear cabinet locking mechanism is vertically arranged in horizontal direction;Two groups of switchgear cabinet locking mechanism in the utility model are adopted reverse tooth shape slide rail and manual plugboard cooperation, using second support spring makes clamping slide column one-way gradually locking, prevent loosening, the design of extrusion plate and third support spring, can dynamically compensate reverse tooth interval error, constant pressure is exerted to switchgear cabinet, avoid clamping not tightly or clamping cabinet body, in both directions of horizontal reverse direction It is ensured that switchgear cabinet is fixed firm.
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Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet frame technology, and in particular to a power distribution cabinet frame. Background Technology

[0002] As the core equipment of a power distribution system, the frame of a distribution cabinet needs to balance stable fixation with flexible movement. In existing technologies, distribution cabinet frames are mostly fixed by direct bolt locking or simple buckle structures. When moving, they rely on ordinary rollers or manual handling. Common locking mechanisms usually involve manually adjusting the position of the clamps with bolts. Although this can achieve basic fixation, it is difficult to adapt to slight differences in cabinet size, and the bolts are prone to loosening, leading to unstable fixation. Moving auxiliary components are mostly independent tools (such as temporary ramps), which require additional handling and assembly during use, resulting in low efficiency and the risk of slippage. Especially in high-frequency vibration environments, traditional locking structures are prone to cabinet deformation or fatigue fracture of connecting parts due to stress concentration.

[0003] A search revealed Chinese patent publication number CN 219163993 U, which discloses a power distribution cabinet frame, including a mounting base. The top wall of the mounting base is equipped with an adjustment component, and the front wall of the mounting base is equipped with a support component. Although this technical solution can adapt to power distribution cabinets of different sizes, the adjustment method relies on bolt locking, which requires repeated manual adjustment. Furthermore, it cannot dynamically compensate for dimensional tolerances or vibration displacements between the cabinet and the frame. Therefore, a power distribution cabinet frame is provided to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a power distribution cabinet frame that can accurately clamp and lock the power distribution cabinet, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a power distribution cabinet frame, comprising:

[0006] A bottom support mechanism, which assists in the movement of the entire device;

[0007] The power distribution cabinet locking mechanism is provided in two sets. The power distribution cabinet locking mechanism is located above the bottom support mechanism, and the two sets of power distribution cabinet locking mechanisms are vertically arranged in the horizontal direction.

[0008] The electric telescopic pole is provided in four sets, and the two ends of the electric telescopic pole are fixedly connected between two sets of power distribution cabinet locking mechanisms.

[0009] As a further embodiment of this utility model: the bottom support mechanism includes a support base, four sets of universal wheels are fixedly connected to the bottom of the support base, two sets of through holes are opened on the side of the support base, a slotted fixing block is fixedly connected to the bottom of the support base near the through holes, a top block groove is opened on the inner side of the slotted fixing block, a pull rod through hole is opened on the inner side of the top block groove, an arc-headed top block is slidably connected to the inner side of the top block groove, a round-headed pull rod is fixedly connected to the side of the arc-headed top block, and a first support spring is sleeved on the outer side of the round-headed pull rod.

[0010] As a further improvement of this utility model, the bottom support mechanism also includes a pusher frame and a roller ramp block, and two sets of slotted arc head inserts are fixedly connected to the sides of both the pusher frame and the roller ramp block.

[0011] As a further embodiment of this utility model: the locking mechanism of the distribution cabinet includes a first telescopic connecting rod, with a set of slide rail plates slidably connected to each end of the first telescopic connecting rod. A reverse toothed slide rail is provided on the outer side of the slide rail plate, and a sliding slot communicating with the reverse toothed slide rail is provided on one side of the slide rail plate. A second telescopic connecting block is provided on the side of the first telescopic connecting rod, with a set of manual insert plates slidably connected to each end of the second telescopic connecting block. An arc-shaped rotating plate is rotatably connected to the outer side of the manual insert plate, and a locking slide post is fixedly connected to the end of the arc-shaped rotating plate. A side fixing block is fixedly connected to the side of the manual insert plate, and a second support spring is fixedly connected between the side fixing block and the arc-shaped rotating plate.

[0012] As a further embodiment of this utility model: each set of manual insert plates is provided with a set of extrusion plates on its side, and two sets of guide plates are fixedly connected to the side of the extrusion plates. The manual insert plate is provided with a guide through hole that matches the guide plate. The first telescopic connecting rod is fixedly connected to the manual insert plates with a third support spring.

[0013] As a further embodiment of this utility model: the connecting rod end of the round-headed pull rod passes through the pull rod through hole, and the two ends of the first support spring are respectively fixedly connected to the inner side wall of the top block groove and the side of the arc-headed top block.

[0014] As a further embodiment of this utility model: the slotted arc head insert is adapted to the through-hole, and the side of the roller ramp block is provided with a positioning groove adapted to the arc head top block. When the first support spring is not subjected to external force and naturally extends, the arc head top block extends out of the top block groove. When the slotted arc head insert is inserted into the inside of the through-hole, the arc head top block extends into the positioning groove on the side of the slotted arc head insert and locks it.

[0015] As a further improvement of this utility model: the manual insert plate is slidably connected to the inside of the sliding slot, and the side of the locking slide post is provided with a lever extending out of the reverse toothed slide rail.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the two sets of power distribution cabinet locking mechanisms are combined with reverse toothed slide rails and manual insert plates. The second support spring is used to lock the locking slide column in one direction step by step to prevent loosening. The design of the extrusion plate and the third support spring can dynamically compensate for the reverse tooth interval error, apply constant pressure to the power distribution cabinet, avoid clamping it loosely or damaging the cabinet, and ensure that the power distribution cabinet is fixed firmly and safely.

[0018] 2. In this utility model, the bottom support mechanism achieves omnidirectional movement of the power distribution cabinet frame through four sets of universal wheels. Combined with the detachable push frame and roller ramp, the operability is significantly improved. The push frame is easy to push manually, while the roller ramp forms a ramp channel to help the power distribution cabinet be pushed smoothly to the top of the support base. The self-locking mechanism of the arc-head top block ensures that the auxiliary components are fixed reliably. When disassembling, only the round-head pull rod needs to be pulled to unlock, which is simple to operate and avoids the safety risks of manually lifting the cabinet.

[0019] 3. The unlocking and locking operations of each component in this utility model are ingeniously designed. For example, pulling the round-headed lever unlocks the bottom auxiliary component, and moving the locking slide lever unlocks the manual insert plate. The operation is simple and not prone to misoperation. The locking design of the mechanical structure and the buffering effect of the spring ensure safety and stability during use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a structural diagram of the present invention when the pusher is installed;

[0022] Figure 3 This is a schematic diagram of the bottom support mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the top block groove in this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the roller ramp block and the pusher frame in this utility model;

[0025] Figure 6 This is a schematic diagram of the locking mechanism of the power distribution cabinet in this utility model;

[0026] Figure 7 This is a schematic diagram of the structure at point A in this utility model.

[0027] In the diagram: 1. Bottom support mechanism; 2. Distribution cabinet locking mechanism; 3. Electric telescopic rod; 11. Support base; 12. Casters; 13. Through-hole; 14. Slotted fixing block; 15. Top block slot; 16. Pull rod through hole; 17. Arc-head top block; 18. First support spring; 19. Round-head pull rod; 110. Hand push frame; 111. Roller ramp block; 112. Slotted arc-head insert block; 21. First telescopic connecting rod; 22. Slide rail plate; 23. Reverse tooth slide rail; 24. Sliding slot; 25. Second telescopic connecting block; 26. Manual insert plate; 27. Arc-shaped rotating plate; 28. Locking slide column; 29. ​​Side fixing block; 210. Second support spring; 211. Extrusion plate; 212. Guide plate; 213. Guide through hole; 214. Third support spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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 based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0030] Reference Figures 1 to 7 In this embodiment of the utility model, a power distribution cabinet frame includes:

[0031] Bottom support mechanism 1, which is used to assist the movement of the entire device;

[0032] The power distribution cabinet locking mechanism 2 is provided in two sets. The power distribution cabinet locking mechanism 2 is located above the bottom support mechanism 1, and the two sets of power distribution cabinet locking mechanisms 2 are vertically arranged in the horizontal direction.

[0033] The electric telescopic pole 3 is provided in four sets, and the two ends of the electric telescopic pole 3 are fixedly connected between the two sets of power distribution cabinet locking mechanisms 2 respectively.

[0034] The bottom support mechanism 1 includes a support base 11. Four sets of universal wheels 12 are fixedly connected to the bottom of the support base 11. Two sets of through holes 13 are opened on the side of the support base 11. A slotted fixing block 14 is fixedly connected to the bottom of the support base 11 near the through holes 13. A top block groove 15 is opened on the inner side of the slotted fixing block 14. A pull rod through hole 16 is opened on the inner side of the top block groove 15, extending to the outer side of the slotted fixing block 14. An arc-shaped top block 17 is slidably connected to the inner side of the top block groove 15. A round-headed pull rod 19 is fixedly connected to the side of the arc-shaped top block 17. A first support spring 18 is sleeved on the outer side of the round-headed pull rod 19. The connecting rod end of the round-headed pull rod 19 passes through the pull rod through hole 16. The two ends of the first support spring 18 are fixedly connected to the inner wall of the top block groove 15 and the side of the arc-shaped top block 17, respectively.

[0035] The above scheme is adopted: the support base 11 serves as the basic load-bearing structure, and the four sets of universal wheels 12 below it provide omnidirectional mobility, facilitating flexible transfer of the device. The through-hole 13 is used to accommodate the insertion of auxiliary components. The top block groove 15 and the pull rod through hole 16 in the slotted fixing block 14 form a sliding channel. The arc-shaped top block 17 slides in the top block groove 15 and maintains an outward extension tendency under the preload of the first support spring 18. When an external force pulls the round-headed pull rod 19, the round-headed pull rod 19 drives the arc-shaped top block 17 to compress the first support spring 18 and retract into the top block groove 15, realizing the unlocked state. When the first support spring 18 naturally extends, it pushes the arc-shaped top block 17 to partially extend, using... To ensure stability during movement, the bottom support mechanism 1 also includes a pusher 110 and a roller ramp 111. Both the pusher 110 and the roller ramp 111 have two sets of slotted arc head inserts 112 fixedly connected to their sides. The slotted arc head inserts 112 are adapted to the through-hole 13. The roller ramp 111 has a positioning groove on its side that is adapted to the arc head top block 17. When the first support spring 18 is naturally extended without being subjected to external force, part of the arc head top block 17 extends out of the top block groove 15. When the slotted arc head insert 112 is inserted into the through-hole 13, the arc head top block 17 extends into the positioning groove on the side of the slotted arc head insert 112 to lock it in place.

[0036] Using the above scheme: When the hand-push frame 110 is selected, the slotted arc-head plug 112 is inserted into the through-hole 13 to facilitate manual movement of the device. When the roller ramp block 111 is selected, the slotted arc-head plug 112 is also inserted into the through-hole 13 to assist the power distribution cabinet in moving above the bottom support mechanism 1. When the slotted arc-head plug 112 is inserted into the through-hole 13, the arc-head top block 17 automatically engages with the positioning groove on the side of the slotted arc-head plug 112 under the elastic force of the first support spring 18, forming a mechanical lock to prevent loosening. When it is necessary to disassemble the hand-push frame 110 or the roller ramp block 111, the arc-head top block 17 is retracted into the top block groove 15 by pulling the round-head pull rod 19, which unlocks the slotted arc-head plug 112 and allows it to be pulled out. The operation is simple, safe and reliable.

[0037] The power distribution cabinet locking mechanism 2 includes a first telescopic connecting rod 21. A set of slide rails 22 are slidably connected to both ends of the first telescopic connecting rod 21. A reverse-toothed slide rail 23 is provided on the outer side of each slide rail 22. A sliding slot 24, communicating with the reverse-toothed slide rail 23, is provided on one side of each slide rail 22. A second telescopic connecting block 25 is provided on the side of the first telescopic connecting rod 21. A set of manual insertion plates 26 are slidably connected to both ends of the second telescopic connecting block 25. An arc-shaped rotating plate is rotatably connected to the outer side of each manual insertion plate 26. 27. A locking slide post 28 is fixedly connected to the end of the arc-shaped rotating plate 27. A side fixing block 29 is fixedly connected to the side of the manual insertion plate 26. A second support spring 210 is fixedly connected between the side fixing block 29 and the arc-shaped rotating plate 27. The manual insertion plate 26 is slidably connected to the inside of the sliding slot 24. A lever is provided on the side of the locking slide post 28 to facilitate unlocking the manual insertion plate 26 inside the sliding slot 24. The reverse tooth plate design of the reverse tooth slide rail 23 makes it possible for the manual insertion plate 26 to be gradually inserted into the inside of the sliding slot 24.

[0038] Using the above scheme: When the manual insert plate 26 slides into the sliding slot 24, its outer arc-shaped rotating plate 27 and locking slide post 28 are engaged in the reverse tooth groove of the reverse tooth slide rail 23 under the tension of the second support spring 210. Due to the design of the reverse tooth plate, the manual insert plate 26 can only move inward and lock in one direction to prevent it from retracting. The second support spring 210 maintains the elasticity of the arc-shaped rotating plate 27 to ensure that the locking slide post 28 is always engaged with the reverse tooth slide rail 23. When unlocking, the arc-shaped rotating plate 27 is rotated by the lever on the side of the locking slide post 28, which compresses the second support spring 210 and causes the locking slide post 28 to disengage from the reverse tooth groove, so that the manual insert plate 26 can be pulled out of the sliding slot 24. The operation is convenient. The second telescopic connecting block 25 is slidably connected to the manual insert plate 26, and the first telescopic connecting rod 21 is slidably connected to the slide rail plate 22. The distance between the manual insert plate 26 and the slide rail plate 22 can be adjusted according to the size of the distribution cabinet to achieve personalized locking.

[0039] Each set of manual insertion plates 26 has a set of pressing plates 211 on its side. Two sets of guide plates 212 are fixedly connected to the side of the pressing plates 211. The manual insertion plates 26 have guide through holes 213 that are adapted to the guide plates 212 on their inner side. The first telescopic connecting rod 21 is fixedly connected to the manual insertion plates 26 with a third support spring 214. The pressing plates 211 can apply constant pressure to the power distribution cabinet inside the power distribution cabinet frame to clamp it, thus eliminating the possibility that the power distribution cabinet may not be clamped or may be clamped too tightly due to the spacing of the reverse teeth in the reverse toothed slide rail 23.

[0040] The above scheme is adopted: the extrusion plate 211 slides through the guide plate 212 and the guide hole 213 of the manual insertion plate 26 to ensure that the extrusion plate 211 moves vertically when pressure is applied, and prevents deviation. After the manual insertion plate 26 is locked in the sliding slot 24, the extrusion plate 211 contacts the surface of the distribution cabinet. The third support spring 214 provides elastic force between the manual insertion plate 26 and the first telescopic connecting rod 21, dynamically compensating for the problem of insufficient fixing caused by the reverse tooth interval of the reverse tooth slide rail 23. When there is a slight deviation in the size of the distribution cabinet or vibration, the third support spring 214 automatically extends and retracts, so that the extrusion plate 211 applies constant pressure, eliminating the problem of not clamping or being too tight, ensuring that the distribution cabinet is stably fixed and does not damage the surface of the cabinet.

[0041] The working principle of this utility model is as follows:

[0042] The bottom support mechanism 1 enables the flexible movement of the power distribution cabinet frame through four sets of universal wheels 12 under the support base 11. When manual pushing is required, the slotted arc head plug 112 of the pusher 110 is inserted into the through-hole 13 on the side of the support base 11. At this time, the arc head top block 17 in the slotted fixing block 14 automatically engages with the positioning groove of the pusher 110 under the elastic force of the first support spring 18. If the power distribution cabinet needs to be installed, the slotted arc head plug 112 of the roller ramp block 111 is inserted into the through-hole 13. The arc head top block 17 is also locked into its positioning groove to form a ramp channel. After the power distribution cabinet is pushed up the ramp to the top of the support base 11, the arc head top block 17 is retracted into the top block groove 15 by pulling the round head pull rod 19. The roller ramp block 111 can then be disassembled to complete the initial positioning of the power distribution cabinet.

[0043] The manual insert plate 26 is inserted into the sliding slot 24 of the slide rail plate 22. When the manual insert plate 26 is manually pushed, the locking slide column 28 at the end of the arc-shaped rotating plate 27 is locked into the reverse tooth groove of the reverse tooth slide rail 23 under the tension of the second support spring 210, realizing one-way gradual locking. The reverse tooth design prevents backing. At this time, the pressing plate 211 contacts the side of the distribution cabinet, and the third support spring 214 is deformed by pressure. When the pressure is too high, the third support spring 214 is compressed to absorb the overload force, ensuring that the clamping force is constant. The guide plate 212 of the pressing plate 211 always slides in the guide through hole 213 of the manual insert plate 26, restricting the pressing plate 211 to move only vertically, avoiding tilting and damaging the cabinet. By operating two different sets of distribution cabinet locking mechanisms 2, the distribution cabinet can be clamped in two directions in the horizontal direction on the outside.

[0044] The four sets of electric telescopic rods 3 are activated to extend and retract synchronously, which in turn causes the two sets of power distribution cabinet locking mechanisms 2 to move in opposite directions or in the opposite direction, so as to realize the automatic adaptation of the height of the power distribution cabinet. This action complements the locking of the manual plug plate 26: after the electric telescopic rods 3 roughly adjust the frame size, the manual plug plate 26 completes the precise positioning and elastic clamping. If the power distribution cabinet is vibrated and causes a slight displacement, the third support spring 214 uses continuous elastic force to make the pressing plate 211 dynamically track the displacement and eliminate the gap. When unlocking, the lever of the locking slide column 28 is moved to make the arc rotating plate 27 compress the second support spring 210 and disengage from the reverse tooth groove, so that the manual plug plate 26 can be pulled out.

[0045] 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 power distribution cabinet frame, characterized in that, include: Bottom support mechanism (1), the bottom support mechanism (1) is used to assist the movement of the entire device; The power distribution cabinet locking mechanism (2) is provided in two sets. The power distribution cabinet locking mechanism (2) is located above the bottom support mechanism (1), and the two sets of the power distribution cabinet locking mechanism (2) are vertically arranged in the horizontal direction. Electric telescopic rod (3), the number of electric telescopic rods (3) is set to four sets, and the two ends of the electric telescopic rod (3) are fixedly connected between the two sets of power distribution cabinet locking mechanisms (2).

2. The power distribution cabinet frame according to claim 1, characterized in that, The bottom support mechanism (1) includes a support base (11), four sets of universal wheels (12) are fixedly connected to the bottom of the support base (11), two sets of through holes (13) are opened on the side of the support base (11), a slotted fixing block (14) is fixedly connected to the bottom of the support base (11) near the through holes (13), a top block groove (15) is opened on the inner side of the slotted fixing block (14), a pull rod through hole (16) is opened on the inner side of the top block groove (15) and extends to the outer side of the slotted fixing block (14), an arc-head top block (17) is slidably connected to the inner side of the top block groove (15), a round-head pull rod (19) is fixedly connected to the side of the arc-head top block (17), and a first support spring (18) is sleeved on the outer side of the round-head pull rod (19).

3. A power distribution cabinet frame according to claim 2, characterized in that, The bottom support mechanism (1) also includes a pusher (110) and a roller ramp (111), and two sets of slotted arc head inserts (112) are fixedly connected to the sides of the pusher (110) and the roller ramp (111).

4. A power distribution cabinet frame according to claim 3, characterized in that, The locking mechanism (2) of the power distribution cabinet includes a first telescopic connecting rod (21). A set of slide rail plates (22) are slidably connected to both ends of the first telescopic connecting rod (21). A reverse toothed slide rail (23) is provided on the outer side of the slide rail plate (22). A sliding slot (24) communicating with the reverse toothed slide rail (23) is provided on one side of the slide rail plate (22). A second telescopic connecting block (25) is provided on the side of the first telescopic connecting rod (21). A set of manual insert plates (26) are slidably connected to both ends of the second telescopic connecting block (25). An arc-shaped rotating plate (27) is rotatably connected to the outer side of the manual insert plate (26). A locking slide column (28) is fixedly connected to the end of the arc-shaped rotating plate (27). A side fixing block (29) is fixedly connected to the side of the manual insert plate (26). A second support spring (210) is fixedly connected between the side fixing block (29) and the arc-shaped rotating plate (27).

5. A power distribution cabinet frame according to claim 4, characterized in that, Each set of manual insert plates (26) is provided with a set of extrusion plates (211) on the side. Two sets of guide plates (212) are fixedly connected to the side of the extrusion plates (211). The manual insert plate (26) is provided with a guide through hole (213) that matches the guide plate (212) on the inner side. The first telescopic connecting rod (21) is fixedly connected to the manual insert plate (26) with a third support spring (214).

6. A power distribution cabinet frame according to claim 2, characterized in that, The connecting rod end of the round-headed pull rod (19) passes through the pull rod through hole (16), and the two ends of the first support spring (18) are respectively fixedly connected to the inner wall of the top block groove (15) and the side of the arc-headed top block (17).

7. A power distribution cabinet frame according to claim 3, characterized in that, The slotted arc head insert (112) is adapted to the through insertion hole (13). The side of the roller ramp block (111) is provided with a positioning groove adapted to the arc head top block (17). When the first support spring (18) is naturally extended without being subjected to external force, part of the arc head top block (17) extends out of the top block groove (15). When the slotted arc head insert (112) is inserted into the inside of the through insertion hole (13), the arc head top block (17) extends into the positioning groove opened on the side of the slotted arc head insert (112) to lock it.

8. A power distribution cabinet frame according to claim 4, characterized in that, The manual insert plate (26) is slidably connected to the inside of the sliding slot (24), and the side of the locking slide column (28) is provided with a lever extending out of the reverse toothed slide rail (23).