A secondary structure prefabricated electrical box rapid positioning installation structure
By using the second mounting plate and pressure plate structure, combined with brackets and buckles for adjustment, the problem of poor adaptability of prefabricated electrical boxes was solved, and stable installation and rapid commissioning of the electrical boxes were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-12
AI Technical Summary
The existing prefabricated electrical boxes have a fixed positioning structure, which makes the installation of different types of power distribution equipment unstable, and wastes time when disassembling the box to replace the equipment.
The system employs a second mounting plate and pressure plate structure. The power distribution equipment is installed on the outside of the second mounting plate. The position is fixed by adjusting the side pressure plate and the arc-shaped buckle. Combined with the position adjustment of the bracket and mounting buckle, the stable installation of the electrical box is ensured in different scenarios.
It improves the stability and installation efficiency of the electrical box under different types of power distribution equipment, simplifies the debugging and maintenance process, and reduces the time required to disassemble the box.
Smart Images

Figure CN224355712U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prefabricated electrical box technology, specifically a quick positioning and installation structure for a secondary structure prefabricated electrical box. Background Technology
[0002] Prefabricated secondary structure electrical boxes (also known as prefabricated electrical distribution boxes) are a key component of electrical systems in building construction, typically used for power distribution in high-rise buildings, industrial plants, and other large-scale construction projects. The design, production, and installation of prefabricated electrical boxes contribute to improving the efficiency and quality of electrical engineering.
[0003] During the installation of prefabricated electrical boxes, after assembling the control box into a whole, the internal equipment needs to be debugged to ensure stable operation. However, different usage scenarios require different types of electrical boxes, necessitating the installation of different models of electrical equipment. The existing fixed positioning structure of prefabricated electrical boxes leads to instability when replacing different models of electrical equipment. Furthermore, if the electrical equipment is damaged after assembly, the box needs to be disassembled for replacement and repair, wasting time. Therefore, we propose a secondary structure for rapid positioning and installation of prefabricated electrical boxes. Utility Model Content
[0004] To address the shortcomings of existing quick-positioning and installation structures for prefabricated secondary electrical boxes, this utility model provides a quick-positioning and installation structure for prefabricated secondary electrical boxes. This structure allows for installation inside the mounting slot via a second mounting plate. After the power distribution equipment is sequentially installed outside the second mounting plate, adjustments to the equipment are possible. After debugging, the outer frame and front cover are fixed again, ensuring convenience during debugging and maintenance, and solving the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a quick positioning and installation structure for a prefabricated secondary electrical box, including a box base, an outer frame, and a front cover. The box base, outer frame, and front cover are fixedly assembled into a box by a first fastening bolt. A bracket is movably sleeved on the outside of the outer frame. Installation buckles are installed on the outside of the connection between the two sets of brackets. The upper and lower ends of the box base are provided with installation grooves. A second installation plate is sleeved on the inside of the installation groove. A pressure plate is movably sleeved on the inside of the box base. The pressure plate is installed on the upper end of the second installation plate. A sliding groove is provided inside the second installation plate, and a second spring is installed at the end of the sliding groove. A side pressure plate is installed inside the sliding groove.
[0006] Preferably, the outer frame is installed between the box base and the front cover, and the first fastening bolt passes through the box base or the front cover, while being threaded inside the outer frame.
[0007] Preferably, the outer frame has grooves on both sides, the slider installed on the inner side of the bracket is movably sleeved inside the groove, and the bracket has fastening bolts installed on the side.
[0008] Preferably, a first mounting plate is fixedly connected to both sides of the bracket, and a limit device is installed inside the first mounting plate.
[0009] Preferably, the base of the housing has a hole in the middle, and a connecting wire limiting sleeve is movably fitted inside the hole. A crossbar is installed on the upper part of the base of the housing and on both sides of the connecting wire limiting sleeve.
[0010] Preferably, the upper parts of both sides of the pressure plate are fitted with buckles via hinges, a first spring is installed between the pressure plate and the buckles, and the lower end of the buckles is engaged with the inside of the housing base.
[0011] Preferably, the second spring is installed on one side of the side pressure plate, and power distribution equipment is installed on the upper part of the second mounting plate. An arc-shaped buckle is fixedly connected to the lower end of the side pressure plate, and the lower end of the arc-shaped buckle is attached to the outside of the second mounting plate.
[0012] Compared with the existing prefabricated electrical box quick positioning and installation structure, this utility model has the following advantages:
[0013] 1. This prefabricated secondary structure electrical box quick positioning and installation structure allows for adjustment of the bracket position based on the installation location of the electrical box. When the electrical box needs to be pre-embedded inside a hole, the mounting clips are moved to the front end of the outer frame, and a fixing device is installed inside the first mounting plate to fix the electrical box position. When the electrical box needs to be installed on the bracket or wall, the mounting clips are moved to the rear end of the outer frame, and the mounting clips contact the box base. At the same time, the first mounting plate is attached to the wall and fixed, thereby improving the stability when the electrical box position is fixed.
[0014] 2. This prefabricated secondary structure electrical box quick positioning and installation structure allows for different sizes of power distribution equipment. The box base, outer frame, and front cover are not assembled beforehand. The second mounting plate is installed inside the mounting groove, and a pressure plate fixes the position of the second mounting plate. Simultaneously, the power distribution equipment is installed outside the second mounting plate. Adjusting the position of the side pressure plate allows for pressing and limiting the position of the power distribution equipment. This means that the power distribution equipment can be debugged before the electrical box is assembled. After debugging, the box base, outer frame, and front cover are assembled as a whole, improving the efficiency of quick positioning and installation of the prefabricated electrical box. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the surface of the main body of the present invention in the installation state.
[0016] Figure 2This is a schematic diagram of the pre-embedded installation structure of the main body of this utility model;
[0017] Figure 3 This is a top view of the structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the base structure of the box of this utility model;
[0019] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.
[0020] In the diagram: 1. Box base; 2. Outer frame; 3. Front cover; 4. First fastening bolt; 5. Bracket; 6. Mounting buckle; 7. First mounting plate; 8. Mounting groove; 9. Second mounting plate; 10. Pressure plate; 11. Buckle; 12. First spring; 13. Second spring; 14. Side pressure plate; 15. Arc-shaped buckle; 16. Crossbar; 17. Connecting wire limit sleeve. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A prefabricated secondary structure electrical box quick positioning and installation structure includes a box base 1, an outer frame 2, and a front cover 3. The box base 1, outer frame 2, and front cover 3 are fixedly assembled into a box by first fastening bolts 4. A bracket 5 is movably sleeved on the outside of the outer frame 2. Mounting buckles 6 are installed on the outside of the connection between two sets of brackets 5. Adjusting the position of the brackets 5 adjusts the installation position of the box. It can be installed on the wall surface or embedded in the interior of a hole. The upper and lower ends of the box base 1 are provided with mounting grooves 8, and a second mounting plate 9 is sleeved inside the mounting grooves 8. The second mounting plate 9 is installed inside the mounting groove 8, which can be fixed according to the different sizes of the power distribution equipment. The base 1 of the box is movably sleeved with a pressure plate 10, which is installed on the upper end of the second mounting plate 9. The pressure plate 10 fixes the second mounting plate 9 inside the mounting groove 8. The second mounting plate 9 has a sliding groove inside, and a second spring 13 is installed at the end of the sliding groove. A side pressure plate 14 is installed inside the sliding groove. The side pressure plate 14 is set on the side of the power distribution equipment, and at the same time, the side pressure plate 14 maintains stability when the power distribution equipment is spliced.
[0023] Please see Figure 1 The outer frame 2 is installed between the box base 1 and the front cover 3. The first fastening bolt 4 passes through the box base 1 or the front cover 3 and is threaded inside the outer frame 2. The box base 1, the outer frame 2 and the front cover 3 form a whole. The first fastening bolt 4 is installed on the outside of the box base 1, the outer frame 2 and the front cover 3 to ensure the stability of the box base 1, the outer frame 2 and the front cover 3 during assembly, and to improve the convenience during the prefabrication and assembly of the equipment.
[0024] Please see Figure 1 and Figure 2 The outer frame 2 has sliding grooves on both sides. The slider installed on the inner side of the bracket 5 is movably sleeved in the sliding groove. The side of the bracket 5 is equipped with fastening bolts. Through the sliding grooves on the side of the outer frame 2, when the housing base 1 needs to be installed inside the wall, the position of the bracket 5 outside the outer frame 2 is adjusted, and the bracket 5 is moved to the contact position with the front cover 3. At the same time, the fastening bolts installed on the side of the bracket 5 are rotated, that is, the first mounting plate 7 can be installed on the outside of the pre-made hole. When the equipment is installed on the wall, the bracket 5 moves to the contact state with the housing base 1, and the first mounting plate 7 is attached to the wall. That is, after the position of the first mounting plate 7 is adjusted, the installation position of the housing base 1 can be adjusted according to the installation requirements.
[0025] Please see Figure 1 The bracket 5 is fixedly connected to the two sides of the first mounting plate 7. The first mounting plate 7 is equipped with a limiting device inside. By installing the first mounting plate 7 on the side of the bracket 5 and the limiting device inside the first mounting plate 7, the equipment can be driven to be installed in place.
[0026] Please see Figure 4 The base 1 of the housing has a hole in the middle, and a connecting wire limiting sleeve 17 is movably fitted inside the hole. A crossbar 16 is installed on the upper part of the base 1 of the housing and on both sides of the connecting wire limiting sleeve 17. By installing the connecting wire limiting sleeve 17 in the middle of the base 1 of the housing, the position of the connecting wire limiting sleeve 17 can be adjusted to improve the positioning stability when the equipment is wiring. The crossbar 16 is installed on the outside of the connecting wire limiting sleeve 17, and the crossbar 16 limits the movement trajectory of the connecting wire limiting sleeve 17.
[0027] Please see Figure 5The upper parts of both sides of the pressure plate 10 are fitted with buckles 11 via hinges. A first spring 12 is installed between the pressure plate 10 and the buckles 11. The lower end of the buckle 11 is engaged inside the housing base 1. Depending on the size of the second mounting plate 9, after the second mounting plate 9 is installed inside the mounting groove 8, the pressure plate 10 is slid. The pressure plate 10 limits the position of the second mounting plate 9 inside the mounting groove 8. At the same time, the angle of the first spring 12 pushing the buckle 11 is adjusted, and one end of the buckle 11 is pressed against the outside of the housing base 1 to ensure that the pressure plate 10 remains stable when its position is adjusted inside the housing base 1.
[0028] Please see Figure 5 The second spring 13 is installed on one side of the side pressure plate 14. The power distribution equipment is installed on the upper part of the second mounting plate 9. The lower end of the side pressure plate 14 is fixedly connected to the arc-shaped buckle 15. The lower end of the arc-shaped buckle 15 is attached to the outside of the second mounting plate 9. After the power distribution equipment is installed on the outside of the second mounting plate 9, the position of the side pressure plate 14 is adjusted. The side pressure plate 14 can lock and limit the position of the power distribution equipment. The second spring 13 pushes the side pressure plate 14 to move inward to provide elastic pressure. At the same time, the lower end of the arc-shaped buckle 15 is attached to the outside of the second mounting plate 9 to increase the friction between the side pressure plate 14 and the second mounting plate 9, that is, to maintain stability when the power distribution equipment is installed and positioned.
[0029] Working principle: During use, depending on the size of the power distribution equipment and installation requirements, the second mounting plate 9 is installed inside the mounting groove 8. The pressure plate 10 is adjusted, causing it to engage with the second mounting plate 9 inside the mounting groove 8 for fixation. Simultaneously, the power distribution equipment is installed outside the second mounting plate 9. The position of the side pressure plate 14 is adjusted, and it engages with the side of the power distribution equipment. The arc-shaped buckle 15 increases friction, ensuring a tight fit when the side pressure plate 14 is positioned. The second spring 13 pushes the side pressure plate 14 inwards, preventing slippage and ensuring ease of assembly. Meanwhile, after the power distribution equipment is debugged, the outer frame 2 and the front cover 3 are sequentially fitted onto the front end of the box base 1 to ensure that the box base 1, outer frame 2 and front cover 3 are assembled into a whole. Adjust the position of the bracket 5 and limit the position of the first mounting plate 7 on the side of the outer frame 2. When the equipment is pre-embedded in the hole, the first mounting plate 7 is installed on the upper end of the outer frame 2, that is, the outer frame 2 can extend into the inside of the hole. When it needs to be installed on the plate or wall surface, adjust the position of the first mounting plate 7 and move the first mounting plate 7 to the rear end of the outer frame 2. That is, the first mounting plate 7 drives the box base 1 to contact and fix with the wall surface to ensure the stability of the equipment when it is positioned.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick-positioning and installation structure for a prefabricated secondary electrical box, comprising a box base (1), an outer frame (2), and a front cover (3), wherein the box base (1), the outer frame (2), and the front cover (3) are fixedly assembled into a box by a first fastening bolt (4), and a bracket (5) is movably sleeved on the outside of the outer frame (2), characterized in that: An installation buckle (6) is installed on the outside of the connection between the two sets of brackets (5). An installation groove (8) is opened at the upper and lower ends of the box base (1). A second installation plate (9) is sleeved inside the installation groove (8). A pressure plate (10) is movably sleeved inside the box base (1). The pressure plate (10) is installed at the upper end of the second installation plate (9). A sliding groove is opened inside the second installation plate (9), and a second spring (13) is installed at the end of the sliding groove. A side pressure plate (14) is installed inside the sliding groove.
2. The rapid positioning and installation structure for a prefabricated secondary electrical box according to claim 1, characterized in that: The outer frame (2) is installed between the box base (1) and the front cover (3), and the first fastening bolt (4) passes through the box base (1) or the front cover (3) and is threaded inside the outer frame (2).
3. The rapid positioning and installation structure for a prefabricated secondary electrical box according to claim 1, characterized in that: The outer frame (2) has grooves on both sides, and the slider installed inside the bracket (5) is movably sleeved inside the groove. The bracket (5) has fastening bolts installed on its side.
4. The rapid positioning and installation structure for a prefabricated secondary electrical box according to claim 1, characterized in that: The bracket (5) is fixedly connected to the two sides of the first mounting plate (7), and the first mounting plate (7) is equipped with a limit device inside.
5. The rapid positioning and installation structure for a prefabricated secondary electrical box according to claim 1, characterized in that: The box base (1) has a hole in the middle, and a connecting line limiting sleeve (17) is movably sleeved inside the hole. A crossbar (16) is installed on the upper part of the box base (1) and on both sides of the connecting line limiting sleeve (17).
6. The rapid positioning and installation structure for a prefabricated secondary electrical box according to claim 1, characterized in that: The upper parts of both sides of the pressure plate (10) are fitted with buckles (11) by hinges. A first spring (12) is installed between the pressure plate (10) and the buckles (11). The lower end of the buckles (11) is engaged with the inside of the box base (1).
7. The rapid positioning and installation structure for a prefabricated secondary electrical box according to claim 1, characterized in that: The second spring (13) is installed on one side of the side pressure plate (14), and the power distribution equipment is installed on the upper part of the second mounting plate (9). The lower end of the side pressure plate (14) is fixedly connected to an arc-shaped buckle (15), and the lower end of the arc-shaped buckle (15) is attached to the outside of the second mounting plate (9).