Mounting structure of secondary structure wall body upper electric box

Abstract

This invention discloses an installation structure for an electrical box mounted on a secondary structure wall, relating to the field of electrical box installation technology. Specifically, the installation structure includes a box body and a wall assembly. The box body is installed inside the wall assembly, and a shell is detachably connected inside the wall assembly. Fixing rods located inside the box body are fixedly installed on the upper and lower sides of the shell. This installation structure, through the cooperation between the box body, the wall assembly, a first contact plate, a second contact plate, and a third contact plate, uses the method of fixing the first contact plates on the upper and lower sides of the box body, and then fixing the third and second contact plates on the left and right sides of the box body respectively. This allows the box body to be fixed before the wall assembly is built, replacing the method of cutting grooves to install the box body after the wall assembly is built. This not only reduces the workload of workers but also avoids damage to the wall assembly.

Description

Technical Field

[0001] This invention relates to the field of electrical box installation technology, specifically to an installation structure for an electrical box on a secondary structure wall. Background Technology

[0002] Secondary structural walls, also known as "secondary structures" or "secondary masonry," refer to non-load-bearing walls used for partitioning, enclosing, and filling spaces after the main load-bearing structure of a building (i.e., the primary structure, such as beams, slabs, columns, shear walls, etc.) has been completed. Electrical distribution boxes are typically installed within the secondary structural walls of high-rise shear wall frames.

[0003] However, the current method of installing electrical boxes generally involves breaking through and creating grooves in the secondary structural walls to create installation space. This process of breaking through and creating grooves not only increases the workload of the workers installing the electrical boxes, but the dust generated during the process can also harm the health of the workers; at the same time, it can easily damage the original structure of the wall, thus affecting the normal use of the wall. Summary of the Invention

[0004] This invention provides an installation structure for an electrical box on a secondary structural wall, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an installation structure for a secondary structure wall-mounted electrical box, comprising a box body and a wall assembly. The box body is installed inside the wall assembly. A housing is detachably connected inside the wall assembly. Fixed rods located inside the box body are fixedly installed on the upper and lower sides of the housing body. A telescopic rod is movably sleeved on the inner wall of the fixed rod at the end away from the housing body. A spring clip for connecting the fixed rod is provided on the inner wall of the telescopic rod. First contact plates for supporting the inner wall of the box body are fixedly installed on the outer ends of the telescopic rods on the upper and lower sides. A first moving rod is slidably connected to the front side of the inner wall of the housing body. A first adjusting component is provided on the inner wall of the first moving rod. A second contact plate located on the right side of the housing body is fixedly installed on the outer end of the first moving rod. A second moving rod located behind the first moving rod is slidably connected to the inner wall of the housing body. A second adjusting component is provided on the inner wall of the second moving rod. A third contact plate located on the left side of the housing body is fixedly installed on the outer end of the second moving rod.

[0006] Optionally, the wall assembly includes a wall body, a top plate, and a floor. The upper end of the wall body is fixedly connected to the top plate, the lower end of the wall body is fixedly connected to the floor, and the box is installed inside the wall body.

[0007] Optionally, a horizontal plate located inside the fixed rod is fixedly installed at the inner end of each of the telescopic rods. Protrusions are fixedly installed on the left and right sides of the horizontal plate, and the outer wall of the end of the protrusion away from the horizontal plate is slidably connected to the inner wall of the fixed rod. A spring is fixedly installed at the lower end of the horizontal plate, and the end of the spring away from the horizontal plate is fixedly connected to the inner wall of the fixed rod.

[0008] Optionally, the fixing rod has grooves on its left and right sides, and the inner wall of the groove is slidably connected to the outer wall of the protrusion. The fixing rod has several through holes running from top to bottom on its front side, and the inner wall of the through holes is movably connected to the spring buckle.

[0009] Optionally, slide rails are fixedly installed on the upper and lower sides of the first and second moving rods, respectively. Several rollers are evenly distributed on the inner wall of the slide rails, and the outer sides of the rollers are in rolling connection with the inner wall of the housing.

[0010] Optionally, the first adjusting component includes a first spur gear and a first straight ruler strip. The upper end of the first spur gear meshes with the lower end of the first straight ruler strip. The upper end of the first straight ruler strip is fixedly connected to the top surface of the inner wall of the first moving rod. A rotating shaft is fixedly sleeved on the inner wall of the first spur gear. The outer walls of the front and rear ends of the rotating shaft are movably sleeved with the inner walls of the front and back of the housing, respectively. The outer wall of the rotating shaft is fixedly sleeved with the inner wall of the second adjusting component. A limiting component for restricting the movement state of the first adjusting component and the second adjusting component is provided on the outer wall of the rotating shaft. A knob located in front of the limiting component is fixedly installed at the front end of the rotating shaft. An extension rod located behind the housing is fixedly connected to the rear end of the rotating shaft.

[0011] Optionally, the second adjusting component includes a second spur gear and a second ruler strip, the lower end of the second spur gear meshing with the upper end of the second ruler strip, the inner wall of the second spur gear being fixedly sleeved with the outer wall of the rotating shaft, and the lower end of the second ruler strip being fixedly connected to the bottom surface of the inner wall of the second moving rod.

[0012] Optionally, the limiting component includes a limiting gear and a locking block. The locking block is movably engaged between two adjacent teeth of the limiting gear. The inner wall of the limiting gear is fixedly sleeved with the outer wall of the rotating shaft. A round rod is movably sleeved on the inner wall of the left end of the locking block, and the rear end of the round rod is fixedly connected to the front of the housing. A disc located in front of the locking block is fixedly installed at the front end of the round rod. A magnetic suction plate is magnetically connected to the upper end of the locking block, and the rear end of the magnetic suction plate is fixedly connected to the front of the housing.

[0013] Optionally, a bracket is fixedly installed on the front of the housing, and a collar is fixedly connected to the end of the bracket away from the housing. A sleeve rod is movably sleeved on the inner wall of the collar. Fastening bolts for connecting the sleeve rod are threaded to the left and right sides of the collar, respectively. A threaded rod is threaded to the inner wall of the sleeve rod. Several threaded holes are sequentially opened from top to bottom on the left and right sides of the sleeve rod, and the inner wall of the threaded holes is threaded to the outer wall of the inner end of the fastening bolt. Support plates for supporting the wall assembly are respectively provided at the outer ends of the sleeve rod and the threaded rod.

[0014] The present invention has the following beneficial effects: 1. The installation structure of the secondary structure wall-mounted electrical box, through the cooperation between the box body, wall components, first contact plate, second contact plate and third contact plate, adopts the method of fixing the first contact plate on the upper and lower sides of the box body, and then fixing the third contact plate and second contact plate on the left and right sides of the box body respectively. This allows the box body to be fixed before the wall components are built, instead of the method of opening grooves to install the box body after the wall components are built. This not only reduces the workload of the workers, but also avoids damage to the wall components.

[0015] 2. The installation structure of the secondary structure wall-mounted electrical box, through the cooperation between the box body, the first contact plate, the spring clip, the telescopic rod, the first adjustment component, the second contact plate, the second adjustment component, and the third contact plate, achieves the adjustment of the position of the first contact plate by changing the connection method between the spring clip and the fixing rod. The adjustment method of the first adjustment component and the second adjustment component respectively driving the adjustment of the second contact plate and the third contact plate achieves the adjustment of the position of the second contact plate and the third contact plate. Therefore, the first contact plate, the second contact plate, and the third contact plate can be used in boxes of different sizes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 The diagram on the right; Figure 3 This is a schematic diagram of the internal structure of the sleeve rod in the structure of the present invention; Figure 4 This is a schematic diagram of the second contact plate in the structure of the present invention; Figure 5 This is a schematic diagram of the extension rod in the structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the fixing rod in the structure of the present invention; Figure 7 This is a schematic diagram of the internal structure of the shell in the structure of the present invention.

[0017] In the diagram: 1. Box body; 2. Wall assembly; 201. Wall body; 202. Top plate; 203. Floor; 3. Shell; 4. Fixing rod; 5. Telescopic rod; 6. Spring buckle; 7. First contact plate; 8. First moving rod; 9. First adjusting assembly; 901. First spur gear; 902. First ruler strip; 10. Second contact plate; 11. Second moving rod; 12. Second adjusting assembly; 121. Second spur gear; 122. Second ruler strip; 13. 14. Horizontal plate; 15. Protrusion; 16. Spring; 17. Groove; 18. Through hole; 19. Rotating shaft; 20. Limiting assembly; 2001. Limiting gear; 2002. Locking block; 21. Magnetic suction piece; 22. Slide rail; 23. Roller; 24. Knob; 25. Extension rod; 26. Round rod; 27. Disc; 28. Bracket; 29. ​​Collar; 30. Fastening bolt; 31. Sleeve rod; 32. Threaded rod; 33. Threaded hole; 34. Support plate. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1 , Figure 2 , Figure 3 and Figure 6 This invention provides a technical solution: an installation structure for a secondary structure wall-mounted electrical box, comprising a box body 1 and a wall assembly 2. The box body 1 is installed inside the wall assembly 2. A housing 3 is detachably connected inside the wall assembly 2. Fixed rods 4 located inside the box body 1 are fixedly installed on the upper and lower sides of the housing 3, respectively. A telescopic rod 5 is movably sleeved on the inner wall of the fixed rod 4 away from the housing 3. A spring buckle 6 for connecting the fixed rod 4 is provided on the inner wall of the telescopic rod 5. A first contact plate 7 for supporting the inner wall of the box body 1 is fixedly installed on the outer ends of the telescopic rods 5 on the upper and lower sides. A first moving rod 8 is slidably connected to the front side of the inner wall of the housing 3. A first adjusting component 9 is provided on the inner wall of the first moving rod 8. A second contact plate 10 located on the right side of the housing 3 is fixedly installed on the outer end of the first moving rod 8. A second moving rod 11 located behind the first moving rod 8 is slidably connected to the inner wall of the housing 3. A second adjusting component 12 is provided on the inner wall of the second moving rod 11. A third contact plate 13 located on the left side of the housing 3 is fixedly installed on the outer end of the second moving rod 11.

[0020] The wall assembly 2 includes a wall body 201, a top plate 202, and a floor 203. The upper end of the wall body 201 is fixedly connected to the top plate 202, and the lower end of the wall body 201 is fixedly connected to the floor 203. The box 1 is installed inside the wall body 201.

[0021] Each telescopic rod 5 has a horizontal plate 14 fixedly installed inside the fixed rod 4 at its inner end. Protrusions 15 are fixedly installed on the left and right sides of the horizontal plate 14, and the outer wall of the end of the protrusion 15 away from the horizontal plate 14 is slidably connected to the inner wall of the fixed rod 4. A spring 16 is fixedly installed at the lower end of the horizontal plate 14, and the end of the spring 16 away from the horizontal plate 14 is fixedly connected to the inner wall of the fixed rod 4. Press the spring buckle 6 to move it inward into the telescopic rod 5 until the spring buckle 6 is separated from the telescopic rod 5. The elasticity of the spring 16 drives the telescopic rod 5 to move outward from the fixed rod 4 through the connection of the horizontal plate 14. At the same time, the movement of the telescopic rod 5 drives the first contact plate 7 to abut against the inner wall of the box 1. Then, the spring buckle 6 rebounds and pops out from the inside of the telescopic rod 5 to the outside of the fixed rod 4. At this time, the spring buckle 6 connects the fixed rod 4 and the telescopic rod 5.

[0022] The left and right sides of the fixing rod 4 are respectively provided with grooves 17, and the inner wall of the groove 17 is slidably connected to the outer wall of the protrusion 15. The front of the fixing rod 4 is provided with several through holes 18 from top to bottom, and the inner wall of the through holes 18 is movably connected to the spring buckle 6.

[0023] Please see Figure 4 , Figure 5 and Figure 7 The first moving rod 8 and the second moving rod 11 are respectively fixedly installed with slide rails 22 on their upper and lower sides. Several rollers 23 are evenly distributed on the inner wall of the slide rails 22, and the outer side of the rollers 23 is in rolling connection with the inner wall of the housing 3.

[0024] The first adjusting assembly 9 includes a first spur gear 901 and a first straight ruler strip 902. The first straight ruler strip 902 drives the second contact plate 10 to move towards the inner wall of the housing 1 via the first moving rod 8. The upper end of the first spur gear 901 meshes with the lower end of the first straight ruler strip 902. Due to the meshing of the first spur gear 901 and the first straight ruler strip 902, the circumferential rotation of the first spur gear 901 simultaneously drives the horizontal movement of the first straight ruler strip 902. The upper end of the first straight ruler strip 902 is fixedly connected to the top surface of the inner wall of the first moving rod 8. A rotating shaft 19 is fixedly sleeved on the inner wall of the first spur gear 901. The outer walls of the front and rear ends of the rotating shaft 19 are movably sleeved with the inner walls of the front and back sides of the housing 3, respectively. The outer wall of the rotating shaft 19 is fixedly sleeved with the inner wall of the second adjustment component 12. The outer wall of the rotating shaft 19 is provided with a limiting component 20 for limiting the movement state of the first adjustment component 9 and the second adjustment component 12. A knob 24 located in front of the limiting component 20 is fixedly installed at the front end of the rotating shaft 19. The rotation of the rotating shaft 19 by the knob 24 drives the rotation of the first adjustment component 9 and the second adjustment component 12. An extension rod 25 located behind the housing 3 is fixedly connected to the rear end of the rotating shaft 19.

[0025] The second adjustment assembly 12 includes a second spur gear 121 and a second ruler strip 122. The second ruler strip 122 drives the third contact plate 13 to move towards the housing 1 through the connection of the second moving rod 11. The lower end of the second spur gear 121 meshes with the upper end of the second ruler strip 122. The second spur gear 121 meshes with the second ruler strip 122. While the second spur gear 121 rotates in a circular motion, it drives the second ruler strip 122 to move laterally in the horizontal direction. The inner wall of the second spur gear 121 is fixedly sleeved with the outer wall of the rotating shaft 19. The lower end of the second ruler strip 122 is fixedly connected to the bottom surface of the inner wall of the second moving rod 11.

[0026] Please see Figure 7 , Figure 4 and Figure 3 The limiting component 20 includes a limiting gear 2001 and a locking block 2002. The locking block 2002 is movably engaged between two adjacent teeth on the limiting gear 2001. The inner wall of the limiting gear 2001 is fixedly sleeved with the outer wall of the rotating shaft 19. A round rod 26 is movably sleeved on the inner wall of the left end of the locking block 2002, and the rear end of the round rod 26 is fixedly connected to the front of the housing 3. A disc 27 located in front of the locking block 2002 is fixedly installed at the front end of the round rod 26. A magnetic suction piece 21 is magnetically connected to the upper end of the locking block 2002, and the rear end of the magnetic suction piece 21 is fixedly connected to the front of the housing 3. When the upper end of the locking block 2002 is magnetically attracted to the magnetic suction piece 21, the locking block 2002 is separated from the limiting gear 2001, thereby realizing the rotation of the rotating shaft 19.

[0027] A bracket 28 is fixedly installed on the front of the housing 3. A collar 29 is fixedly connected to the end of the bracket 28 away from the housing 3. A sleeve rod 31 is movably sleeved on the inner wall of the collar 29. Fastening bolts 30 for connecting the sleeve rod 31 are threadedly connected to the left and right sides of the collar 29. A threaded rod 32 is threadedly connected to the inner wall of the sleeve rod 31. Several threaded holes 33 are opened from top to bottom on the left and right sides of the sleeve rod 31. The inner wall of the threaded hole 33 is threadedly connected to the outer wall of the inner end of the fastening bolt 30. Due to the threaded connection between the threaded rod 32 and the sleeve rod 31, the threaded rod 32 can also achieve vertical lifting and lowering movement while rotating in a circular motion, until the support plates 34 on the upper and lower sides support the top plate 202 and the floor 203. Support plates 34 for supporting the wall assembly 2 are respectively provided at the outer ends of the sleeve rod 31 and the threaded rod 32.

[0028] In summary, the installation structure of this secondary structure wall-mounted electrical box, during use, firstly, utilizes the rotation of the locking block 2002 on the round rod 26, and then coordinates the upper end of the locking block 2002 with the magnetic attraction plate 21. At this time, the locking block 2002 separates from the limiting gear 2001. The rotation of the rotating shaft 19 via the knob 24 simultaneously drives the rotation of the first spur gear 901 and the second spur gear 121. Since the first spur gear 901 meshes with the first straight strip 902, the second spur gear 121 meshes with the second... When the ruler strip 122 meshes, the first spur gear 901 and the second spur gear 121 rotate circumferentially, respectively driving the first ruler strip 902 and the second ruler strip 122 to move laterally in the horizontal direction. The first ruler strip 902, connected by the first moving rod 8, drives the second contact plate 10 to move towards the inner wall of the housing 1. The second ruler strip 122, connected by the second moving rod 11, drives the third contact plate 13 to move towards the housing 1. The second contact plate 10 and the third contact plate 13 abut against the right and left sides of the housing 1, respectively, pressing the spring clip 6 to move inward towards the telescopic rod 5 until the spring clip 6 is separated from the telescopic rod 5. The elasticity of the spring 16, connected by the horizontal plate 14, drives the telescopic rod 5 to move outward towards the fixed rod 4. While the telescopic rod 5 is moving, it drives the first contact plate 7 to abut against the inner wall of the housing 1. Then, the spring clip 6 rebounds and pops outward from the inside of the telescopic rod 5 to the outside of the fixed rod 4. At this time, the spring clip 6 connects the fixed rod 4 and the telescopic rod 5, and then separates the magnetic suction piece 21 from the locking block 200. 2. After that, the locking block 2002 is engaged between two adjacent teeth of the limiting gear 2001, which can fix the housing 3 inside the box 1. Then, by connecting the threaded hole 33 and the collar 29 with the fastening bolt 30, the collar 29 can be fixed on the sleeve rod 31. Finally, due to the threaded connection between the threaded rod 32 and the sleeve rod 31, the threaded rod 32 can also achieve vertical lifting and lowering movement while rotating in a circular motion, until the support plates 34 on the upper and lower sides support the top plate 202 and the floor 203.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" 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 invention based on the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An installation structure for a secondary structure wall-mounted electrical box, comprising a box body (1) and a wall assembly (2), characterized in that: The housing (1) is installed inside the wall assembly (2). The wall assembly (2) is detachably connected to a shell (3). Fixed rods (4) located inside the housing (1) are fixedly installed on the upper and lower sides of the shell (3). A telescopic rod (5) is movably sleeved on the inner wall of the fixed rod (4) away from the shell (3). A spring buckle (6) for connecting the fixed rod (4) is provided on the inner wall of the telescopic rod (5). A first contact plate (7) for supporting the inner wall of the housing (1) is fixedly installed on the outer ends of the telescopic rods (5) on the upper and lower sides. A first moving rod (8) is slidably connected to the front side of the inner wall of the body (3). A first adjusting component (9) is provided on the inner wall of the first moving rod (8). A second contact plate (10) located on the right side of the housing (3) is fixedly installed on the outer end of the first moving rod (8). A second moving rod (11) located behind the first moving rod (8) is slidably connected to the inner wall of the housing (3). A second adjusting component (12) is provided on the inner wall of the second moving rod (11). A third contact plate (13) located on the left side of the housing (3) is fixedly installed on the outer end of the second moving rod (11).

2. The installation structure of an electrical box on a secondary structure wall as described in claim 1, characterized in that: The wall assembly (2) includes a wall body (201), a top plate (202) and a floor (203). The upper end of the wall body (201) is fixedly connected to the top plate (202), and the lower end of the wall body (201) is fixedly connected to the floor (203). The box (1) is installed inside the wall body (201).

3. The installation structure of the electrical box on a secondary structure wall according to claim 1, characterized in that: Each of the telescopic rods (5) has a horizontal plate (14) fixedly installed at its inner end inside the fixed rod (4). The left and right sides of the horizontal plate (14) are respectively fixedly installed with protrusions (15), and the outer wall of the protrusion (15) away from the horizontal plate (14) is slidably connected to the inner wall of the fixed rod (4). The lower end of the horizontal plate (14) is fixedly installed with a spring (16), and the end of the spring (16) away from the horizontal plate (14) is fixedly connected to the inner wall of the fixed rod (4).

4. The installation structure of an electrical box on a secondary structure wall as described in claim 3, characterized in that: The fixing rod (4) has grooves (17) on its left and right sides respectively, and the inner wall of the groove (17) is slidably connected to the outer wall of the protrusion (15). The front of the fixing rod (4) has several through holes (18) running from top to bottom, and the inner wall of the through holes (18) is movably connected to the spring buckle (6).

5. The installation structure of an electrical box on a secondary structure wall as described in claim 1, characterized in that: The first moving rod (8) and the second moving rod (11) are respectively fixedly installed with slide rails (22) on their upper and lower sides. Several rollers (23) are evenly distributed on the inner wall of the slide rail (22), and the outer side of the rollers (23) is in rolling connection with the inner wall of the housing (3).

6. The installation structure of an electrical box on a secondary structure wall as described in claim 1, characterized in that: The first adjustment component (9) includes a first spur gear (901) and a first straight ruler strip (902). The upper end of the first spur gear (901) meshes with the lower end of the first straight ruler strip (902). The upper end of the first straight ruler strip (902) is fixedly connected to the top surface of the inner wall of the first moving rod (8). The inner wall of the first spur gear (901) is fixedly sleeved with a rotating shaft (19). The outer walls of the front and rear ends of the rotating shaft (19) are movably sleeved with the inner walls of the front and back sides of the housing (3), respectively. The outer wall of the rotating shaft (19) is fixedly sleeved with the inner wall of the second adjustment component (12). The outer wall of the rotating shaft (19) is provided with a limiting component (20) for limiting the movement state of the first adjustment component (9) and the second adjustment component (12). The front end of the rotating shaft (19) is fixedly installed with a knob (24) located in front of the limiting component (20). The rear end of the rotating shaft (19) is fixedly connected with an extension rod (25) located behind the housing (3).

7. The installation structure of an electrical box on a secondary structure wall as described in claim 6, characterized in that: The second adjustment component (12) includes a second spur gear (121) and a second ruler strip (122). The lower end of the second spur gear (121) meshes with the upper end of the second ruler strip (122). The inner wall of the second spur gear (121) is fixedly sleeved with the outer wall of the rotating shaft (19). The lower end of the second ruler strip (122) is fixedly connected to the bottom surface of the inner wall of the second moving rod (11).

8. The installation structure of an electrical box on a secondary structure wall as described in claim 6, characterized in that: The limiting component (20) includes a limiting gear (2001) and a locking block (2002). The locking block (2002) is movably locked between two adjacent teeth on the limiting gear (2001). The inner wall of the limiting gear (2001) is fixedly sleeved with the outer wall of the rotating shaft (19). A round rod (26) is movably sleeved on the inner wall of the left end of the locking block (2002), and the rear end of the round rod (26) is fixedly connected to the front of the housing (3). A disc (27) located in front of the locking block (2002) is fixedly installed at the front end of the round rod (26). A magnetic piece (21) is magnetically connected to the upper end of the locking block (2002), and the rear end of the magnetic piece (21) is fixedly connected to the front of the housing (3).

9. The installation structure of an electrical box on a secondary structure wall as described in claim 1, characterized in that: A bracket (28) is fixedly installed on the front of the housing (3). A collar (29) is fixedly connected to one end of the bracket (28) away from the housing (3). A sleeve rod (31) is movably sleeved on the inner wall of the collar (29). Fastening bolts (30) for connecting the sleeve rod (31) are threadedly connected to the left and right sides of the collar (29). A threaded rod (32) is threadedly connected to the inner wall of the sleeve rod (31). Several threaded holes (33) are opened sequentially from top to bottom on the left and right sides of the sleeve rod (31). The inner wall of the threaded hole (33) is threadedly connected to the outer wall of the inner end of the fastening bolt (30). Support plates (34) for supporting the wall assembly (2) are respectively provided at the outer ends of the sleeve rod (31) and the threaded rod (32).

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