A mounting frame structure for a power distribution cabinet
Patent Information
- Application Number
- CN202522309606.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-31
AI Technical Summary
[0005]本实用新型的目的在于：为了解决现有技术中大多的配电柜用安装框架结构，进行配电柜组件之间组合固定操作时需要使用工具参与以及调试操作，整个组合固定操作便捷性较差、效率较低的问题，而提出的一种配电柜用安装框架结构
本实用新型中，通过将原先配电柜安装框架结构进行了科学合理化改良，在横梁、纵梁和竖梁之间设置了固定座、内插筒、防退弹片、T型孔、防退锁孔和内螺帽，首先，固定座上的内插筒可对准并插入到横梁和纵梁的端部内，当内插筒完全滑入到横梁或者纵梁内时，防退弹片便可弹性扣入到横梁或者纵梁上的防退锁孔内，将两根横梁和纵梁组合固定成矩形框体结构，其次，四个竖梁上的外螺柱可插入到固定座的T型孔内，然后操作人员握持并转动旋钮，便可将内螺帽通过螺纹旋入到外螺柱和T型孔之间，这种结构可实现横梁、纵梁和竖梁之间的免工具及免调试便捷组合固定操作，有效降低了安装框架组合固定的工作量和难度，从而提升了配电柜安装框架组合固定的便捷性和效率。
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Figure CN224804490U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution cabinet technology, and in particular to an installation frame structure for power distribution cabinets. Background Technology
[0002] Distribution cabinets are divided into power distribution cabinets, lighting distribution cabinets, and metering cabinets, and are the final-level equipment in a power distribution system. Distribution cabinets are a general term for motor control centers. Distribution cabinets are used in situations where the load is relatively dispersed and there are fewer circuits; motor control centers are used in situations where the load is concentrated and there are more circuits. They distribute the electrical energy from a circuit of the upstream power distribution equipment to the nearest load. This level of equipment should provide protection, monitoring, and control for the load.
[0003] Currently, the main body of the distribution cabinet mounting frame consists of four sets of horizontal beams, vertical beams, and angle brackets, which are assembled and fixed by welding or using fasteners to form a complete cubic frame structure. However, this type of distribution cabinet mounting frame fixing structure has the following shortcomings in actual use: When assembling and fixing the mounting frame, operators need to directly participate by operating equipment or using tools, which increases the workload and difficulty of the assembly and fixing operation. At the same time, the entire assembly and fixing operation requires manual intervention to adjust and align the horizontal beams, vertical beams, and angle brackets before assembly and fixing, which reduces the convenience and efficiency of assembling and fixing the distribution cabinet mounting frame.
[0004] In view of this, it is particularly important to design and manufacture a power distribution cabinet installation frame structure that enables tool-free and debugging-free operation between power distribution cabinet components and improves the convenience and efficiency of mounting frame assembly and fixing. This structure is applied in the design, manufacturing and actual use of power distribution cabinet structures. Utility Model Content
[0005] The purpose of this utility model is to solve the problem that most existing power distribution cabinet installation frame structures require tools and debugging operations when assembling and fixing the components, resulting in poor convenience and low efficiency in the entire assembly and fixing operation. Therefore, this utility model proposes an installation frame structure for power distribution cabinets.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: An installation frame structure for a power distribution cabinet includes a frame structure composed of four sets of horizontal beams, longitudinal beams and vertical beams. A modular locking mechanism for tool-free assembly and fixing of the horizontal beams, longitudinal beams and vertical beams is provided between the corner connection nodes of the horizontal beams, longitudinal beams and vertical beams.
[0007] As a further description of the above technical solution: The modular locking mechanism includes a fixed seat disposed between the ends of the horizontal beam, the longitudinal beam, and the vertical beam; a first locking part disposed between the fixed seat and the vertical beam; and a second locking part disposed between the fixed seat, the horizontal beam, and the longitudinal beam.
[0008] As a further description of the above technical solution: The first locking part includes an outer stud integrally fixed to the upper and lower ends of the vertical beam and passing through the fixing seat, a T-shaped hole opened in the middle of the fixing seat for accommodating the outer stud, an inner nut screwed into the outside of the outer stud and located inside the T-shaped hole, and a knob fixed to the outside of the inner nut.
[0009] As a further description of the above technical solution: The upper and lower ends of the vertical beam are fixedly connected in a ring array to multiple anti-deviation protrusions facing the fixing seat on the outside of the external stud. The fixing seat is provided with anti-deviation grooves that match the multiple anti-deviation protrusions.
[0010] As a further description of the above technical solution: The second locking part includes an inner cylinder integrally fixed to the side of the fixing base and insertable into the inner side of the end of the crossbeam and longitudinal beam, an anti-retraction spring piece fixed on the inner cylinder and elastically abutting against the inner wall of the crossbeam and longitudinal beam, an anti-retraction locking hole opened on the crossbeam and longitudinal beam and lockable with the anti-retraction spring piece, and a limiting part provided inside the inner cylinder and preventing the anti-retraction spring piece from elastically deforming inward and falling out of the anti-retraction locking hole.
[0011] As a further description of the above technical solution: The limiting part includes a limiting block movably installed between the inner insert and the inner side of the anti-retraction spring, an outwardly protruding handle fixed outside the limiting block and extending outward through the inner insert, and a transverse sliding groove opened on the inner insert and located outside the outwardly protruding handle.
[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: In this utility model, the original power distribution cabinet installation frame structure has been scientifically and rationally improved. A fixing base, inner insert, anti-retraction spring, T-hole, anti-retraction locking hole, and inner nut are installed between the horizontal beams, vertical beams, and intermediate beams. First, the inner insert on the fixing base can be aligned and inserted into the ends of the horizontal and vertical beams. When the inner insert is fully slid into the horizontal or vertical beam, the anti-retraction spring can elastically engage with the anti-retraction locking hole on the horizontal or vertical beam, thus fixing the two horizontal and vertical beams into a rectangular frame structure. Second, the outer studs on the four intermediate beams can be inserted into the T-holes of the fixing base. Then, the operator holds and rotates the knob to screw the inner nut between the outer stud and the T-hole. This structure enables tool-free and adjustment-free convenient assembly and fixing of the horizontal, vertical, and intermediate beams, effectively reducing the workload and difficulty of assembling and fixing the installation frame, thereby improving the convenience and efficiency of assembling and fixing the power distribution cabinet installation frame. Attached Figure Description
[0013] Figure 1 This is a simplified structural diagram of an installation frame structure for a power distribution cabinet proposed in this utility model; Figure 2 This is a three-dimensional disassembly diagram of the present invention; Figure 3 This is a partial exploded view of the crossbeam, longitudinal beam, vertical beam, and fixing base in this utility model; Figure 4 This is a partial cross-sectional view of the fixing seat in this utility model.
[0014] Legend: 1. Horizontal beam; 2. Longitudinal beam; 3. Vertical beam; 301. External stud; 302. Anti-deviation protrusion; 4. Fixing base; 401. Inner insert; 402. Anti-reverse spring; 403. T-hole; 404. Anti-deviation groove; 405. Horizontal slide groove; 5. Anti-reverse locking hole; 6. Inner nut; 601. Knob; 7. Limit stop; 701. External protruding handle. Detailed Implementation
[0015] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figure 1-4This utility model provides a technical solution: an installation frame structure for a power distribution cabinet, including a frame structure composed of four sets of horizontal beams 1, longitudinal beams 2 and vertical beams 3, and a modular locking mechanism for tool-free combination and fixing between the corner connection nodes of the horizontal beams 1, longitudinal beams 2 and vertical beams 3. The modular locking mechanism includes a fixed seat 4 disposed between the ends of the horizontal beam 1, the longitudinal beam 2 and the vertical beam 3, a first locking part disposed between the fixed seat 4 and the vertical beam 3, and a second locking part disposed between the fixed seat 4, the horizontal beam 1 and the longitudinal beam 2.
[0017] Specifically, such as Figure 1-4 As shown, the first locking part includes an outer stud 301 integrally fixed to the upper and lower ends of the vertical beam 3 and passing through the fixing seat 4, a T-hole 403 opened in the middle of the fixing seat 4 for accommodating the outer stud 301, an inner nut 6 installed on the outside of the outer stud 301 and located inside the T-hole 403 by threading, and a knob 601 fixed on the outside of the inner nut 6. The knob 601 is designed to facilitate the operator's gripping and rotation adjustment of the inner nut 6, and to facilitate the tool-free screwing of the inner nut 6 between the outer stud 301 and the T-hole 403, thereby achieving quick fixation between the vertical beam 3 and the fixing seat 4.
[0018] The upper and lower ends of the vertical beam 3 are fixedly connected in a ring array to multiple anti-deviation protrusions 302 facing the fixing seat 4 on the outer side of the external studs 301. The fixing seat 4 is provided with anti-deviation grooves 404 that match the multiple anti-deviation protrusions 302. The setting of the anti-deviation protrusions 302 and anti-deviation grooves 404 facilitates the pre-positioning operation between the vertical beam 3 and the fixing seat 4 and improves the combination and fixing effect between the vertical beam 3 and the fixing seat 4. On the other hand, it can reduce the occurrence of axial rotation problem after the vertical beam 3 is installed and fixed, thereby further improving the fixing effect after the vertical beam 3 and the fixing seat 4 are combined.
[0019] Specifically, such as Figure 1-4 As shown, the second locking part includes an inner insert 401 integrally fixed to the side of the fixing base 4 and insertable into the inner side of the end of the crossbeam 1 and the longitudinal beam 2; an anti-retraction spring piece 402 fixed on the inner insert 401 and elastically abutting against the inner wall of the crossbeam 1 and the longitudinal beam 2; an anti-retraction locking hole 5 opened on the crossbeam 1 and the longitudinal beam 2 and lockable with the anti-retraction spring piece 402; and a limiting part provided inside the inner insert 401 to prevent the anti-retraction spring piece 402 from elastically deforming inward and falling out of the anti-retraction locking hole 5. Under normal conditions, the triangular locking block on the anti-retraction spring piece 402 is in an outward convex shape. In order for the anti-retraction spring piece 402 to be stably and elastically engaged with the anti-retraction locking hole 5, the inner insert 401 and the crossbeam 1 or the longitudinal beam 2 are elastically self-locked.
[0020] The limiting part includes a limiting block 7 movably installed between the inner cylinder 401 and the inner side of the anti-recoil spring 402, an outwardly protruding handle 701 fixed outside the limiting block 7 and extending outward through the inner cylinder 401, and a transverse sliding groove 405 opened on the inner cylinder 401 and located outside the outwardly protruding handle 701. Under normal conditions, the outwardly protruding handle 701 can slide out through the transverse sliding groove 405 on the inner cylinder 401 and the gap reserved between the crossbeam 1 and the longitudinal beam 2. By operating the outwardly protruding handle 701, the operator can slide and adjust the limiting block 7 inside the inner cylinder 401, thereby realizing the anti-disengagement limiting operation after the anti-recoil spring 402 is locked.
[0021] Working principle: When using this device, the assembly and fixing of the mounting frame is required: Step 1: Making the upper and lower frame of the installation frame: The operator takes four horizontal beams 1, four vertical beams 2 and eight fixing seats 4 and divides them into two parts. The two inner tubes 401 on the fixing seats 4 are respectively inserted into the inner side of the ends of the horizontal beams 1 and vertical beams 2. At this time, the anti-retraction springs 402 on the inner tubes 401 can pre-deform inward and abut against the inner wall of the horizontal beams 1 or vertical beams 2 under the action of contact extrusion force. When the inner tubes 401 are fully inserted into the ends of the horizontal beams 1 or vertical beams 2, the anti-retraction springs 402 can elastically snap outward into the anti-retraction locking holes 5 on the horizontal beams 1 or vertical beams 2, and the inner tubes 401 are stably locked and fixed at the ends of the horizontal beams 1 or vertical beams 2. The two horizontal beams 1 and two vertical beams 2 can be installed and fixed between the four fixing seats 4, which can support the upper and lower rectangular frame. Step 2, Anti-fall-off safety measures: Hold the protruding handle 701 on the limiting block 7 and slide the limiting block 7 towards the fixing seat 4 inside the inner tube 401. When the limiting block 7 slides into the inner tube 401 and contacts the anti-reverse spring 402, the anti-reverse spring 402 can be stably limited and fixed in the anti-reverse locking hole 5, preventing the combination and fixation between the inner tube 401, the crossbeam 1, and the longitudinal beam 2 from failing due to the inward movement of the anti-reverse spring 402. Step 3: Vertical installation of the frame: Take the four vertical beams 3, align the external studs 301 on the four vertical beams 3 with the T-holes 403 on the fixing base 4, and insert the anti-deviation protrusions 302 on the vertical beams 3 into the anti-deviation grooves 404 of the fixing base 4. This completes the pre-positioning operation before fixing the fixing base 4 and the vertical beams 3. Then, the operator can take the inner nut 6. By holding and turning the knob 601, the operator can screw the inner nut 6 into the external studs 301 and the T-holes 403 through the threads. After the inner nut 6 is tightened, the four vertical beams 3 can be stably fixed between the upper and lower frames, thus completing the tool-free and convenient assembly and fixing operation of the frame.
[0022] 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 mounting frame structure for a power distribution cabinet, comprising a frame structure composed of four sets of horizontal beams (1), longitudinal beams (2), and vertical beams (3), characterized in that, A modular locking mechanism is provided between the corner connection nodes of the horizontal beam (1), the longitudinal beam (2) and the vertical beam (3) for tool-free combination and fixing between the horizontal beam (1), the longitudinal beam (2) and the vertical beam (3).
2. The mounting frame structure for a power distribution cabinet according to claim 1, characterized in that, The modular locking mechanism includes a fixed seat (4) disposed between the ends of the horizontal beam (1), the longitudinal beam (2) and the vertical beam (3), a first locking part disposed between the fixed seat (4) and the vertical beam (3), and a second locking part disposed between the fixed seat (4), the horizontal beam (1) and the longitudinal beam (2).
3. The mounting frame structure for a power distribution cabinet according to claim 2, characterized in that, The first locking part includes an outer stud (301) integrally fixed to the upper and lower ends of the vertical beam (3) and passing through the fixing seat (4), a T-hole (403) opened in the middle of the fixing seat (4) for accommodating the outer stud (301), an inner nut (6) screwed on the outside of the outer stud (301) and located inside the T-hole (403) and a knob (601) fixed on the outside of the inner nut (6).
4. The mounting frame structure for a power distribution cabinet according to claim 3, characterized in that, The upper and lower ends of the vertical beam (3) are located outside the outer stud (301) and are fixedly connected in a ring array with multiple anti-deviation protrusions (302) facing the fixed seat (4). The fixed seat (4) is provided with anti-deviation grooves (404) that match the multiple anti-deviation protrusions (302).
5. The mounting frame structure for a power distribution cabinet according to claim 2, characterized in that, The second locking part includes an inner tube (401) integrally fixed to the side of the fixing base (4) and can be inserted into the inner side of the end of the cross beam (1) and the longitudinal beam (2), an anti-retraction spring piece (402) fixed on the inner tube (401) and elastically abutting against the inner wall of the cross beam (1) and the longitudinal beam (2), an anti-retraction locking hole (5) opened on the cross beam (1) and the longitudinal beam (2) and can be locked with the anti-retraction spring piece (402), and a limiting part provided inside the inner tube (401) to prevent the anti-retraction spring piece (402) from elastically deforming inward and falling out of the anti-retraction locking hole (5).
6. The mounting frame structure for a power distribution cabinet according to claim 5, characterized in that, The limiting part includes a limiting block (7) movably installed between the inner insert (401) and the inner side of the anti-retraction spring (402), an outwardly protruding handle (701) fixed outside the limiting block (7) and extending outward through the inner insert (401), and a transverse sliding groove (405) opened on the inner insert (401) and located outside the outwardly protruding handle (701).