A concealed switch base box

Abstract

This utility model relates to the technical field of civil electrical installation equipment, and more specifically, to a concealed switch box, including a side wall panel and a base plate, which are connected to form a cavity for the switch box. It also includes a rotating disk with several bottom-surface cable entry holes, and mounting holes on the base plate. The rotating disk is installed in the mounting holes and rotatably connected to the base plate. This utility model avoids the risk of cable damage during installation and improves installation efficiency and reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of civil electrical installation equipment, and more specifically, to a recessed switch box. Background Technology

[0002] PVC-U switch boxes are a key infrastructure component in civil electrical installations, widely used in electrical wiring projects in residential and public buildings due to their excellent insulation, corrosion resistance, and cost advantages. Based on installation method, these products are mainly divided into two categories: surface-mounted and recessed. Among them, recessed switch boxes, with their simple and aesthetically pleasing appearance after being embedded in the wall, have become the mainstream choice for current interior decoration. The standard installation process typically includes: first, precisely drilling a hole in the wall to the specified depth according to the box dimensions; then, placing the box in the hole; and finally, filling and securing it with cement mortar.

[0003] Existing concealed switch boxes typically have several fixed cable entry holes on their bottom for various power or signal cables. However, practical applications show that this design of fixed cable entry holes presents significant operational bottlenecks. During construction and installation, the routing, bending radius, and specific spatial angle of cables (such as power lines, lighting lines, and low-voltage lines) entering the box are often strongly constrained by objective conditions such as building structure and pre-buried conduit paths, resulting in complex and variable forms. In such cases, fixed-position, fixed-direction cable entry holes often fail to properly match the actual cable layout and entry angle.

[0004] This mismatch directly leads to technical difficulties in cable threading: electrical installers are forced to frequently pull, twist, and even forcibly bend cables to barely get them through the cable entry hole at the bottom of the junction box. Such operations not only heavily rely on the worker's experience and skill but also result in low efficiency and significantly increased workload in the cable installation process. Furthermore, the rough handling carries the risk of damaging the cable insulation and reducing electrical safety performance. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of existing switch boxes where the bottom cable entry hole is difficult to match the cable routing, and to provide a concealed switch box that can actively adapt to complex on-site installation conditions, effectively avoid the risk of cable damage during installation, and improve installation efficiency and reliability.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A concealed switch box is provided, including a side wall panel and a bottom plate. The side wall panel and the bottom plate are connected to form a cavity of the switch box. The box also includes a rotating disk with a plurality of bottom wire inlet holes. The bottom plate has mounting holes. The rotating disk is installed in the mounting holes and is rotatably connected to the bottom plate.

[0008] In the above-described solution, mounting holes are provided on the base plate, and an independent rotating disk is rotatably connected to the base plate through these mounting holes, allowing the disk to rotate horizontally within the plane of the base plate. The rotating disk has several bottom entry holes for cable threading. During electrical installation, operators do not need to forcibly pull or twist cables to fit fixed hole positions. Instead, they can manually rotate the rotating disk according to the actual cable laying path, entry angle, and location requirements on site. Through rotation, the positions of the entry holes distributed on the rotating disk are dynamically adjusted, allowing for precise alignment of one entry hole with the cable end or matching its natural direction. The fundamental principle is to give the entry hole structure horizontal rotational freedom, transforming a static point into a dynamic one that can actively adapt to complex site conditions. This significantly simplifies the cable threading operation, avoids the risk of cable damage during installation, and improves installation efficiency and reliability.

[0009] Furthermore, the rotating disk includes a connecting portion, and a locking portion and a boss portion located at both ends of the connecting portion. The mounting hole is a stepped hole and has a stepped portion. The rotating disk abuts against the boss portion and the stepped portion. The rotating disk is snapped to the base plate through the locking portion. Through the abutment of the boss portion and the stepped portion, the locking portion abuts against the surface of the base plate, forming a movement restriction in a direction perpendicular to the plane of the base plate. At the same time, the entire rotating disk is installed into the mounting hole, forming a linear movement limit of the rotating disk in the plane of the base plate, so that the rotating disk can only rotate in the plane of the base plate.

[0010] Furthermore, the engaging part is annular; the rotating disk is circular, and the engaging part can be a number of evenly arranged blocks on the edge of the rotating disk, or it can be an annular part that circles the entire rotating disk. Choosing an annular engaging part allows each edge of the rotating disk to form a limit with the mounting hole, thereby improving the limiting strength.

[0011] Furthermore, the engaging part is provided with a conical surface, and the end of the conical surface away from the boss is inclined toward the center of the rotating disk. The conical surface facilitates the installation of the rotating disk. During installation, the side with the conical surface is brought into contact with the step and pressed down, so that both the engaging part and the step are deformed, and the entire rotating disk can be installed into the mounting hole along the inclined direction of the conical surface.

[0012] Furthermore, the surface of the rotating disk near the protrusion is flush with the outer surface of the base plate, and the engaging part is snapped into the inner surface of the base plate. Since the outer wall of the concealed switch box is in contact with the embedded cement, and the engaging part needs to pass through the mounting hole to contact the surface of the base plate, this will inevitably form a protrusion on the surface of the base plate. Setting this protrusion on one side inside the cavity can make the embedded surface of the base plate flatter and avoid difficulty in disassembly.

[0013] Furthermore, it also includes a locking mechanism, which is used to lock the rotational degree of freedom of the rotating disk; after the rotating disk rotates to a certain angle, it needs to be fixed to prevent the rotating disk from sliding again.

[0014] Furthermore, the locking mechanism includes elastic protrusions and locking grooves. A plurality of elastic protrusions are circumferentially arranged on the side of the first boss portion, and a plurality of locking grooves are circumferentially arranged on the side of the mounting hole at one end away from the second boss portion. The elastic protrusions and locking grooves are connected. The locking mechanism adopts the form of elastic protrusions and locking grooves. The more elastic protrusions are provided, the more rotation angles can be fixed after the rotating disk rotates.

[0015] Furthermore, the elastic protrusion is arc-shaped or conical, and the outline of the locking groove fits the shape of the elastic protrusion. The elastic protrusion is arc-shaped or conical, and when it rotates to leave the locking groove through the arc surface or inclined surface, the elastic protrusion is compressed and deformed and slides out of the locking groove along the arc surface or inclined surface. As it continues to slide, the elastic protrusion slides back into the locking groove along the arc surface or inclined surface and restores its deformation.

[0016] Furthermore, it also includes a fastening assembly. The bottom of the side wall panel is provided with a side cable entry hole, and the fastening assembly is detachably connected to the top of the side wall panel. The function of the fastening assembly is to connect multiple identical bottom boxes together. The fastening assembly is a part that protrudes from the bottom box wall. If it is directly fixed to the bottom box, the fastening assembly may be accidentally damaged by external force during the storage or transportation of the bottom box. Setting it to a detachable form allows the fastening assembly to be stored or transported separately from the bottom box, effectively avoiding accidental damage by external force.

[0017] Furthermore, the fastening assembly includes a male buckle, a female buckle, and a fastening block. The male buckle and the female buckle are respectively mounted on opposite side wall panels. Each side wall panel has a mortise and tenon joint. Both the male buckle and the female buckle have tenon joints that connect with the mortise and tenon joints. A fastening groove is provided at the top of the mortise and tenon joint, communicating with the mortise and tenon joint. The fastening block is installed within the fastening groove and abuts against either the male buckle or the female buckle. The male buckle and the female buckle are joined using a mortise and tenon joint. To achieve a snap-fit ​​connection, during installation, insert the tenon of the male or female buckle into the mortise on the side panel from the top of the base box, perpendicular to the base plate, to form a snap-fit ​​connection. Finally, hammer fasteners into the fastening grooves. The fasteners can be wedges. Use the fasteners to limit the male and female buckles in the depth direction of the cavity to prevent them from accidentally slipping out of the installation path. After the snap-fit ​​assembly is installed, the male buckle on one switch base box snaps into the female buckle on another switch base box, forming an assembly of multiple switch base boxes.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The rotating disk has several bottom cable entry holes, and the base plate has mounting holes. The rotating disk is installed in the mounting holes and rotates to connect with the base plate. This allows the position of the cable entry holes to be changed by horizontal rotation, actively adapting to complex site conditions, effectively avoiding the risk of cable damage during installation, and improving installation efficiency and reliability.

[0020] 2. The fastening assembly includes male and female fasteners, both of which are detachable, effectively preventing accidental damage from external forces during storage or transportation of the bottom box. Attached Figure Description

[0021] Figure 1 A top view of a recessed switch box;

[0022] Figure 2 A front view of a recessed switch box;

[0023] Figure 3 A schematic diagram of a recessed switch box after the fastening assembly has been installed;

[0024] Figure 4 A schematic diagram of the structure of a rotating disk in a concealed switch box;

[0025] Figure 5 This is a schematic diagram of the first structure of a concealed switch box after the base plate is connected to the rotating disk;

[0026] Figure 6 This is a schematic diagram of the second structure of a concealed switch box after the base plate is connected to the rotating disk;

[0027] Figure 7 This is a schematic diagram of the base plate structure of a concealed switch box.

[0028] Figure 8 A schematic diagram of the female buckle of a concealed switch box;

[0029] Figure 9 This is a schematic diagram of the sub-clasp structure of a concealed switch box;

[0030] Figure 10 This is a schematic diagram of the structure of a fastening block for a concealed switch box.

[0031] In the attached diagram: 100, side wall panel; 110, snap-fit ​​part; 120, fastening groove; 200, base plate; 210, mounting hole; 211, step part; 300, rotating disk; 310, bottom wire inlet hole; 320, connecting part; 330, engaging part; 340, boss part; 400, locking mechanism; 410, elastic protrusion; 420, locking groove; 500, fastening assembly; 510, male buckle; 520, female buckle; 530, fastening block; 540, tenon part. Detailed Implementation

[0032] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0033] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] Example 1

[0035] This embodiment is a first embodiment of a recessed switch box, such as... Figures 1 to 7As shown, the device includes a side wall panel 100 and a bottom plate 200, which are connected to form the cavity of the switch box. It also includes a rotating disk 300, which has several bottom wire inlet holes 310. The bottom plate 200 has mounting holes 210, and the rotating disk 300 is installed in the mounting holes 210 and rotatably connected to the bottom plate 200.

[0036] Specifically, such as Figure 5 As shown, the rotating disk 300 includes a connecting portion 320, and a locking portion 330 and a boss portion 340 located at both ends of the connecting portion 320. The mounting hole 210 is a stepped hole and has a stepped portion 211. The rotating disk 300 abuts against the stepped portion 211 through the boss portion 340. The rotating disk 300 is snapped to the base plate 200 through the locking portion 330. Through the abutment between the boss portion 340 and the stepped portion 211, the locking portion 330 abuts against the surface of the base plate 200, forming a movement restriction in a direction perpendicular to the plane of the base plate 200. At the same time, the entire rotating disk 300 is installed into the mounting hole 210, forming a linear movement restriction of the rotating disk 300 in the plane of the base plate 200, so that the rotating disk 300 can only rotate in the plane of the base plate 200.

[0037] In addition, such as Figure 6 As shown, the base plate 200 may also omit the step portion 211. The engaging portion 330 and the boss portion 340 abut against the top and bottom surfaces of the base plate 200 respectively to form a limiting position. The effect of doing so is that the thickness of the base plate 200 can be made thinner, saving more material.

[0038] Specifically, the engaging part 330 is annular; the rotating disk 300 is circular. The engaging part 330 can be a number of evenly arranged blocks on the edge of the rotating disk 300, or it can be an annular part that circles the rotating disk 300. Choosing an annular engaging part 330 allows each edge of the rotating disk 300 to be limited with the mounting hole 210, thereby improving the limiting strength.

[0039] Specifically, the engaging part 330 is provided with a conical surface, and the end of the conical surface away from the boss part 340 is inclined towards the center of the rotating disk 300. The conical surface facilitates the installation of the rotating disk 300. During installation, the side with the conical surface is brought into contact with the step part 211 and pressed down, so that both the engaging part 330 and the step part 211 are deformed, and the entire rotating disk 300 can be installed into the mounting hole 210 along the inclined direction of the conical surface.

[0040] Specifically, the surface of the rotating disk 300 near the boss 340 is flush with the outer surface of the base plate 200, and the engaging part 330 is snapped into the inner surface of the base plate 200. Since the outer wall of the concealed switch box is in contact with the embedded cement, and the engaging part 330 needs to pass through the mounting hole 210 to contact the surface of the base plate 200, this will inevitably form a protrusion on the surface of the base plate 200. Setting this protrusion on one side inside the cavity can make the embedded surface of the base plate flatter and avoid difficulty in disassembly.

[0041] The working principle of a recessed switch box in this embodiment is as follows:

[0042] The operator first installs the rotating disk 300 into the mounting hole 210, so that the annular engaging part 330 abuts against the surface of the base plate 200. After completion, the entire switch box is placed into the pre-set burial opening. The rotating disk 300 is rotated so that the position of the bottom wire inlet hole 310 is aligned with the wire outlet position of the burial opening. The wire is then directly inserted into the bottom wire inlet hole 310 to complete the installation.

[0043] The beneficial effects of this embodiment are: by introducing a rotatable and adjustable rotating disk 300 cable entry structure, the problem of cable entry difficulties caused by the single fixed position and direction of the cable entry hole in traditional concealed switch boxes is effectively solved.

[0044] Example 2

[0045] This embodiment is a second embodiment of a concealed switch box, such as... Figures 3 to 7 As shown, the difference from Embodiment 1 is that;

[0046] Specifically, it also includes a locking mechanism 400, which is used to lock the rotational freedom of the rotating disk 300; after the rotating disk 300 rotates to a certain angle, it needs to be fixed to prevent the rotating disk 300 from sliding again.

[0047] Specifically, the locking mechanism 400 includes elastic protrusions 410 and locking grooves 420. A plurality of elastic protrusions 410 are arranged circumferentially on the side of the first boss portion 340, and a plurality of locking grooves 420 are arranged circumferentially on the side of the mounting hole 210, located at the end away from the second boss portion 340. The elastic protrusions 410 and locking grooves 420 are connected. The locking mechanism 400 adopts the form of elastic protrusions 410 and locking grooves 420. The more elastic protrusions 410 are provided, the more rotation angles that can be fixed after the rotating disk 300 rotates.

[0048] Specifically, the elastic protrusion 410 can be a rubber elastomer, and the elastic protrusion 410 is arc-shaped or conical, with the contour of the locking groove 420 conforming to the shape of the elastic protrusion 410; for example... Figure 4As shown, the elastic protrusion 410 is arc-shaped. When the elastic protrusion 410 leaves the locking groove 420, it is compressed and deformed and slides out of the locking groove 420 along the arc surface or the inclined surface. As it continues to slide, the elastic protrusion 410 slides back into the locking groove 420 along the arc surface or the inclined surface and restores its deformation.

[0049] The working principle of a recessed switch box in this embodiment is as follows:

[0050] Workers can grasp the bottom wire inlet hole 310 to rotate the rotating disk 300. At this time, the elastic protrusion 410 will first undergo full compression deformation and slide out of the locking groove 420 through the arc surface. After rotating a certain angle, the elastic protrusion 410 will re-enter the locking groove 420 through the arc surface. After fully entering, the elastic protrusion 410 will completely restore its elastic deformation.

[0051] The beneficial effects of this embodiment are: by setting the locking mechanism 400 to limit the rotation effect of the rotating disk 300, the rotating disk 300 can be effectively fixed after rotating at a certain angle.

[0052] Example 3

[0053] This embodiment is a third embodiment of a concealed switch box, such as... Figure 3 as well as Figures 8 to 10 As shown, the difference from Embodiment 1 is that it also includes a fastening component 500. The bottom of the side wall panel 100 is provided with a side cable entry hole, and the fastening component 500 is detachably connected to the top of the side wall panel 100. The function of the fastening component 500 is to connect multiple identical bottom boxes together. The fastening component 500 is a part that protrudes from the bottom box. If it is directly fixed to the bottom box, the fastening component 500 may be accidentally damaged by external force during the storage or transportation of the bottom box. By making it detachable, the fastening component 500 can be stored or transported separately from the bottom box, effectively avoiding accidental damage by external force.

[0054] Specifically, the fastening assembly 500 includes a male fastener 510, a female fastener 520, and a fastening block 530. The male fastener 510 and the female fastener 520 are respectively installed on opposite side wall panels 100. A mortise and tenon joint 110 is provided on the side wall panel 100. Both the male fastener 510 and the female fastener 520 are provided with tenon joints 540, which are connected to the mortise and tenon joint 110. A fastening groove 120 is provided at the top of the mortise and tenon joint 110, and the fastening block 530 is installed within the fastening groove 120, abutting against either the male fastener 510 or the female fastener 520. The male fastener 510 and the female fastener 520 are joined using a mortise and tenon joint. The snap-fit ​​connection is achieved by inserting the tenon 540 of the male buckle 510 or female buckle 520 into the mortise 110 on the side wall panel 100 from the top of the bottom box along a direction perpendicular to the bottom plate 200 to form a snap-fit ​​connection. Finally, fasteners, which can be wedges, are hammered into the fastening groove 120. The fasteners limit the male buckle 510 and female buckle 520 in the depth direction of the cavity to prevent them from accidentally slipping out of the installation path. After the snap-fit ​​assembly 500 is installed, the male buckle 510 on one switch bottom box is snap-fitted into the female buckle 520 on another switch bottom box to form an assembly of multiple switch bottom boxes.

[0055] like Figure 3 As shown, the mortise and tenon joint 110 can be a dovetail groove, such as... Figure 8 and 9 As shown, the latching part 540 of the male buckle 510 and the female buckle 520 is a dovetail key.

[0056] The working principle of a recessed switch box in this embodiment is as follows:

[0057] During installation, first insert the male buckle 510 and female buckle 520 into the mortise 110 from the top of the side wall panel 100 along a direction perpendicular to the base plate 200. Then, from the outside of the cavity to the inside of the cavity, hammer the fastening block 530 into the fastening groove 120 from a direction perpendicular to the side wall panel 100. At this time, the bottom surface of the fastening block 530 abuts against the top surface of the tenon 540, completing the installation of the entire fastening assembly 500.

[0058] The beneficial effects of this embodiment are: by making the fastening component 500 detachable, the fastening component 500 can be effectively prevented from being accidentally damaged by external forces during storage or transportation of the bottom box.

[0059] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A flush-mounted switch box comprising a side wall plate (100) and a bottom plate (200), the side wall plate (100) and the bottom plate (200) being connected and enclosing a cavity of the switch box, characterized in that, It also includes a rotating disk (300), which has a plurality of bottom wire inlet holes (310) and a mounting hole (210) on the base plate (200). The rotating disk (300) is installed in the mounting hole (210) and is rotatably connected to the base plate (200).

2. The flush-mounted switch socket according to claim 1, characterized in that The rotating disk (300) includes a connecting part (320), and a locking part (330) and a boss part (340) located at both ends of the connecting part (320). The mounting hole (210) is a stepped hole and has a stepped part (211). The rotating disk (300) abuts against the stepped part (211) through the boss part (340). The rotating disk (300) is snapped to the base plate (200) through the locking part (330).

3. A flush-mounted switch socket according to claim 2, characterized in that The engaging part (330) is annular.

4. The device according to claim 2, wherein The engaging portion (330) is provided with a tapered surface, and the end of the tapered surface away from the boss portion (340) is inclined toward the center of the rotating disk (300).

5. The device according to claim 2, wherein The surface of the rotating disk (300) near the boss (340) is flush with the outer surface of the base plate (200), and the engaging part (330) is snapped into the inner surface of the base plate (200).

6. A flush-mounted switch socket according to claim 2, characterized in that It also includes a locking mechanism (400) for locking the rotational degrees of freedom of the rotating disk (300).

7. A flush-mounted switch socket according to claim 6, characterized in that The locking mechanism (400) includes an elastic protrusion (410) and a locking groove (420). A plurality of elastic protrusions (410) are arranged circumferentially on the side of the boss portion (340), and a plurality of locking grooves (420) are arranged circumferentially on the side of the mounting hole (210) and located at one end away from the step portion (211). The elastic protrusions (410) are connected to the locking grooves (420).

8. A surface-mounted switch box according to claim 7, characterized in that The elastic protrusion (410) is arc-shaped or conical, and the outline of the locking groove (420) fits the shape of the elastic protrusion (410).

9. A flush-mounted switch socket according to any one of claims 1 to 8, characterized in that It also includes a fastening assembly (500), the bottom of the side wall panel (100) is provided with a side wire inlet hole, and the fastening assembly (500) is detachably connected to the top of the side wall panel (100).

10. A flush-mounted switch socket according to claim 9, characterized in that The fastening assembly (500) includes a male buckle (510), a female buckle (520), and a fastening block (530). The male buckle (510) and the female buckle (520) are respectively installed on the opposite side wall panels (100). The side wall panels (100) are provided with a mortise (110). Both the male buckle (510) and the female buckle (520) are provided with a tenon (540). The tenon (540) is connected to the mortise (110). The top of the mortise (110) is provided with a fastening groove (120). The fastening groove (120) is connected to the mortise (110). The fastening block (530) is installed in the fastening groove (120) and abuts against the male buckle (510) or the female buckle (520).

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