Switch box capable of being spliced

Abstract

The utility model relates to the technical field of switch boxes, in particular to a splicable switch box, which comprises a plurality of unit boxes, the side wall of each unit box is provided with a wire through hole, a connecting part and at least two inserting parts, and the inserting parts and the connecting parts are positioned on the same side wall of the unit boxes. The inserting parts of different unit boxes are used for being mutually inserted to form a connecting channel, different unit boxes are detachably connected through the connecting parts, and the wire passing holes, the connecting parts and the inserting parts are not overlapped. According to the splicable switch box, connection channels between the unit boxes can be formed during splicing, no additional cutting of connection pipes is needed, and the installation efficiency of the switch box is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switch boxes, and more specifically, to a splicable switch box. Background Art

[0002] A switch box is a commonly used electrical device in building construction, which is used for threading wires inside a wall and reserving space for the installation and wiring of subsequent switch panels. With the improvement of people's living quality and the popularization of home appliance intelligence, the types and sizes of switch panels installed in houses are increasing. Therefore, a splicable switch box is needed to meet the installation requirements of switch panels of different sizes.

[0003] The Chinese patent discloses a splicable switch box, which includes a switch box main body and a switch box cover. The switch box main body is provided with metal movable feet for fixing the switch box cover on the open end of the switch box main body. The side wall of the switch box main body is surrounded by four side walls to form a rectangular ring wall. Blind holes are provided on the side wall of the switch box main body. Two symmetrical metal movable foot mounting holes are provided on the upper edge of the side wall of the switch box main body. The metal movable feet are embedded into the metal movable foot mounting holes for fixation; on the outer middle positions of the upper edges of the front side wall and the left side wall of the switch box main body, there is an upper buckle block respectively, and two splicing concave blocks are equidistantly arranged on both sides of the upper buckle block; on the outer middle positions of the upper edges of the rear side wall and the right side wall of the switch box main body, there is a lower buckle block respectively, and two splicing convex blocks are equidistantly arranged on both sides of the lower buckle block; the upper buckle block and the lower buckle block can be connected in cooperation, and the splicing concave blocks and the splicing convex blocks can be connected in cooperation. However, this switch box has a disadvantage that there is no connected channel between the spliced switch box main bodies. If wires need to be threaded between the switch box main bodies, it is also necessary to cut additional pipes of suitable sizes and perform pipe connections on the switch boxes respectively, which greatly affects the installation efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a splicable switch box. This splicable switch box is composed of several unit boxes. When multiple unit boxes are spliced, a connection channel for threading wires can be formed between the unit boxes, eliminating the need for additional pipe connection and significantly improving the installation efficiency.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] Provide a splicable switch box, which includes several unit boxes. Through holes, connection parts and at least two plug-in parts are provided on the side walls of the unit boxes. The plug-in parts and the connection parts are located on the same side wall. The plug-in parts of different unit boxes are used for plugging into each other to form a connection channel. Different unit boxes are detachably connected through the connection parts. The through holes, connection parts and plug-in parts do not overlap each other.

[0007] With this setting method, the wire passing hole is used to connect with an external pipe and introduce an electric wire. The plugging part is used to form a connection channel through which a power supply wire passes between the unit boxes spliced with each other. The connecting part is used to make the connection between two unit boxes firm. The splicable switch box can adapt to various working conditions: when a single group of switches needs to be installed, a single unit box is selected for installation; when multiple groups of connected switches need to be installed, the required number of unit boxes is selected and spliced. The multiple unit boxes are connected through the connecting part. At the same time, along the connection direction, the plugging part of the first unit box is plugged into the plugging part of the second unit box to form a connection channel. Each single unit box has at least two plugging parts, and the remaining plugging parts of the second unit box can be plugged into the plugging parts of the third unit box to form a connection channel. The multiple unit boxes are internally connected through the connection channel without the need for additional pipe fittings, greatly improving the installation efficiency of the switch box.

[0008] Preferably, the unit box is provided with two opposite second side walls and two opposite first side walls. The connecting part and the plugging part are both arranged on the second side walls, and the wire passing hole is arranged on the first side wall.

[0009] With this setting method, the wire passing direction of the plugging part and the wire passing hole are perpendicular to each other and do not interfere with each other, which is convenient for the user to thread the wire. Moreover, the splicing direction of the switch box is perpendicular to the wire leading direction of the wire passing hole, and the connection of the unit boxes will not hinder the wire leading of the wire passing hole, which is beneficial to improving the practicability of the switch box.

[0010] Preferably, the connecting part includes a first connecting platform and a second connecting platform. A boss is arranged on the first connecting platform, and a clamping groove is arranged on the second connecting platform. The first connecting platform and the second connecting platform are respectively arranged on two second side walls, and the first connecting platform of one unit box is detachably connected to the second connecting platform of another unit box.

[0011] With this setting method, the unit boxes can be connected through the connecting part. When connecting, the first connecting platform of the first unit box and the second connecting platform of the second unit box are clamped through the boss and the clamping groove to ensure the firm connection between the first unit box and the second unit box.

[0012] Preferably, the plugging part includes a first plugging post and a second plugging post. The first plugging post and the second plugging post are both hollow. The inner diameter of the first plugging post is larger than that of the second plugging post. The second plugging post of one unit box can be inserted into the first plugging post of another unit box to form a connection channel.

[0013] With this setting method, when multiple unit boxes are connected, the second insertion post of the first unit box is inserted into the first insertion post of the second unit box, and the second insertion post of the second unit box is inserted into the first insertion post of the first unit box. Thus, two connection channels are formed between the first unit box and the second unit box, facilitating the user to thread wires according to the usage scenario without the need to additionally cut the pipe fittings for connection, improving the convenience of the connection and installation of the switch box.

[0014] Preferably, a plurality of reinforcing ribs are further provided on the outer side of the second insertion post, and the plurality of reinforcing ribs are equidistantly arranged along the circumferential direction of the second insertion post.

[0015] With this setting method, when the first insertion post and the second insertion post are connected, the reinforcing ribs play a buffering role between the first insertion post and the second insertion post. It can not only ensure the interference fit between the second insertion post and the first insertion post, with a tight connection, but also reduce the contact area when the first insertion post and the second insertion post are inserted, facilitating insertion.

[0016] Preferably, a clip is further provided on the first side wall, and the clip is used for clamping with the steel bar.

[0017] With this setting method, the common lateral steel bar threading method is retained, enabling the steel bar to be inserted into the clip from the side for installation. Moreover, the clip can accommodate the dimensional fluctuations of the steel bar to a certain extent. The clip can be directly pressed onto the steel bar without grinding the steel bar, which is beneficial to improving the installation efficiency and the applicable range.

[0018] Preferably, a plurality of positioning holes are further provided on the unit box, and the positioning holes are used for connection and positioning with the aluminum formwork in the building.

[0019] Nowadays, in building construction, recyclable aluminum formwork is mostly used to replace wooden formwork for pouring construction. With this setting method, when installing the switch box, the user can fix the switch box on the aluminum formwork through the positioning holes. After the mortar pouring work is completed, the aluminum formwork is then removed, which is beneficial to ensuring that the bottom surface of the switch box is flat with the pouring structure surface and improving the installation quality.

[0020] Preferably, the unit box further includes a cover plate. A locking part is provided at the top of the unit box. A nut groove is provided at the bottom of the locking part, and a threaded hole is provided at the top of the locking part. A locking hole is provided on the cover plate, and a bolt passes through the locking hole and is threadedly connected to the locking part.

[0021] With this setting method, the cover plate is tightly connected to the unit box through bolts, which is beneficial to preventing small particles in the mortar material from infiltrating. When the threaded hole fails due to force and the thread slips, a nut can be installed in the nut groove to lock the bolt inserted into the locking part, which is beneficial to extending the service life of the switch box.

[0022] Furthermore, the locking part can also be used to connect with the switch panel. Through this setting method, during grouting installation, when the cover plate is installed on the switch box, it can also play a fixing role, which is beneficial to reducing the deformation of the locking part; and after pouring, the cover plate is directly exposed on the outer surface of the wall, which is both beautiful and beneficial to determining the position of the locking part, facilitating the installation of the switch panel.

[0023] Furthermore, the threaded hole is of a U-shaped structure. During the installation process of the switch box, it often undergoes a certain degree of deformation due to extrusion. Through this setting method, the U-shaped threaded hole is beneficial to absorbing the dimensional fluctuations caused by the deformation, ensuring that the cover plate and the unit box can maintain a tight connection.

[0024] Preferably, a shielding plate is also provided on the plug-in part and the wire passing hole, and a weakening groove is provided at the connection between the shielding plate and the unit box.

[0025] Through this setting method, during installation, the user can knock off the shielding plate corresponding to the plug-in part or the wire passing hole according to the wiring requirements, while the shielding plates on other unused wire passing holes or plug-in parts remain in place. When installation is carried out after wiring is completed, the shielding plate can keep the remaining plug-in parts and wire passing holes in a closed state, preventing mortar from pouring into the switch box.

[0026] Preferably, it further includes a connection assembly, and the connection assembly includes a threaded cylinder, a connection cylinder and a connection pipe. The threaded cylinder is connected to the wire passing hole inside the unit box, the connection cylinder is threadedly connected to the threaded cylinder outside the unit box, and the connection pipe is inserted into the connection cylinder.

[0027] Furthermore, the threaded cylinder includes a limiting platform and a threaded section.

[0028] Through this setting method, when an external wire passing pipeline needs to be connected, the user can first pass the threaded cylinder through the wire passing hole from the inside of the unit box, and the limiting platform abuts against the side wall of the unit box; then place the connection cylinder outside the unit box and thread it with the threaded section passing through the wire passing hole, and then insert the connection pipe into the connection cylinder to complete the connection; the threaded cylinder and the connection cylinder clamp the wire passing hole between the inside and outside of the unit box respectively to complete the connection, and the connection pipe is then inserted into the connection cylinder. Compared with directly inserting the wire passing pipeline into the wire passing hole of an ordinary unit box and fixing it with an adhesive material, this connection method is more stable, has better sealing performance, and does not require waiting for the adhesive material to solidify. It can be installed and disassembled multiple times for easy maintenance, greatly improving the work efficiency.

[0029] Compared with the prior art, the beneficial effects of the present utility model are:

[0030] (1) Through the setting of the plug-in part, when multiple unit boxes are spliced, a connection channel for threading is formed between the unit boxes, eliminating the need for additional pipe connection treatment between the unit boxes, greatly improving the installation efficiency.

[0031] (2) Through the setting of the clamping buckle, the way of laterally passing the steel bars during the installation of the switch box is retained, and steel bars within a certain size range can be matched without grinding the steel bars, improving the installation efficiency.

[0032] (3) Through the structural setting of the locking part, the connection failure caused by the deformation of the unit box or the slipping of the threaded hole can be avoided, improving the practicability of the switch box. Description of the Drawings

[0033] Figure 1 It is a schematic diagram of the overall structure of a splicable switch box of the present utility model;

[0034] Figure 2 It is a schematic diagram of the unit box structure of a splicable switch box of the present utility model;

[0035] Figure 3 It is a schematic diagram of the internal structure of a splicable switch box of the present utility model;

[0036] Figure 4 It is a schematic diagram of the connection component structure of a splicable switch box of the present utility model;

[0037] Figure 5 It is a schematic diagram of the cooperation of the connection components of a splicable switch box of the present utility model.

[0038] The illustration marks are explained as follows:

[0039] 1. Switch box; 2. Unit box; 21. Wire passing hole; 22. Connection part; 221. First connection platform; 222. Second connection platform; 223. Boss; 224. Card slot; 23. Insertion part; 231. First insertion post; 232. Second insertion post; 233. Reinforcing rib; 24. First side wall; 25. Second side wall; 26. Clamping buckle; 27. Locking part; 271. Nut groove; 272. Threaded hole; 28. Positioning hole; 29. Shielding plate; 3. Cover plate; 4. Connection component; 41. Threaded cylinder; 411. Limiting platform; 412. Threaded section; 42. Connection cylinder; 43. Connection pipe; 5. Steel bar. Detailed Embodiment

[0040] The present utility model will be further described below in conjunction with specific embodiments. Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present utility model, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, some well-known structures and their descriptions in the attached drawings may be the same or similar components corresponding to the same or similar reference numerals in the embodiments of the present utility model; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the attached drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the attached drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0041] Embodiment 1

[0042] As Figures 1 to 3 shown in the first embodiment of a spliceable switch box of the present utility model, it includes two unit boxes 2. The side wall of the unit box 2 is provided with a wire passing hole 21, a connecting part 22 and two plug-in parts 23. The plug-in parts 23 and the connecting part 22 are located on the same side wall. The plug-in parts 23 of the two unit boxes 2 facing each other are used to be plugged into each other to form a connection channel. The two unit boxes 2 are detachably connected through the connecting part 22. The wire passing hole 21, the connecting part 22 and the plug-in part 23 do not overlap each other.

[0043] Through this setting method, the wire passing hole 21 is used to connect with an external pipe and introduce an electric wire. The plug-in part 23 is used to form a connection channel for the power supply wire to pass through between the spliced unit boxes 2. The connecting part 22 is used to make the connection between the two unit boxes 2 stable; the spliceable switch box can adapt to various working conditions: when a single group of switches needs to be installed, a single unit box 2 is selected for installation; when multiple groups of connected switches need to be installed, the required number of unit boxes 2 is selected and spliced. The multiple unit boxes 2 are connected through the connecting part 22. At the same time, along the connection direction, the plug-in part 23 of the first unit box 2 is plugged into the plug-in part 23 of the second unit box 2 to form a connection channel. Each single unit box 2 has at least two plug-in parts 23. The remaining plug-in parts 23 of the second unit box 2 can be plugged into the plug-in parts 23 of the third unit box 2 to form a connection channel. The multiple unit boxes 2 are internally connected through the connection channel, without the need for additional pipe fittings, greatly improving the installation efficiency of the switch box 1.

[0044] As an embodiment of the present utility model, the unit box 2 is provided with two opposite second side walls 25 and two opposite first side walls 24. The connecting portion 22 and the inserting portion 23 are both arranged on the second side wall 25, and the wire passing hole 21 is arranged on the first side wall 24.

[0045] Through this setting method, the threading directions of the inserting portion 23 and the wire passing hole 21 are perpendicular to each other and do not interfere with each other, which is convenient for the user to thread the wire. Moreover, the splicing direction of the switch box 1 is perpendicular to the wire leading direction of the wire passing hole 21, and the connection of the unit box 2 will not obstruct the wire leading of the wire passing hole 21, which is beneficial to improving the practicability of the switch box 1.

[0046] As an embodiment of the present utility model, the unit box 2 is provided with two opposite first side walls 24 and two opposite second side walls 25. The connecting portion 22 and the inserting portion 23 are both arranged on the second side wall 25, and the wire passing hole 21 is arranged on the first side wall 24.

[0047] Through this setting method, the threading directions of the inserting portion 23 and the wire passing hole 21 are perpendicular to each other and do not interfere with each other, which is convenient for the user to thread the wire. Moreover, the splicing direction of the switch box 1 is perpendicular to the wire leading direction of the wire passing hole 21, and the connection of the unit box 2 will not obstruct the wire leading of the wire passing hole 21, which is beneficial to improving the practicability of the switch box 1.

[0048] As an embodiment of the present utility model, the connecting portion 22 includes a first connecting platform 221 and a second connecting platform 222. A boss 223 is arranged on the first connecting platform 221, and a clamping groove 224 is arranged on the second connecting platform 222. The first connecting platform 221 and the second connecting platform 222 are respectively arranged on two second side walls 25, and the first connecting platform 221 of one unit box 2 is detachably connected to the second connecting platform 222 of another unit box 2.

[0049] Through this setting method, the unit boxes 2 can be connected through the connecting portion 22. When connecting, the first connecting platform 221 of the first unit box 2 and the second connecting platform 222 of the second unit box 2 are clamped through the boss 223 and the clamping groove 224 to ensure the stable connection of the first unit box 2 and the second unit box 2.

[0050] As an embodiment of the present utility model, the inserting portion 23 includes a first inserting column 231 and a second inserting column 232. Both the first inserting column 231 and the second inserting column 232 are hollow. The diameter of the first inserting column 231 is 24 mm, and the diameter of the second inserting column 232 is 20 mm. The second inserting column 232 of one unit box 2 can be inserted into the first inserting column 231 of another unit box 2 to form a connection channel.

[0051] With this setting method, when multiple unit boxes 2 are connected, the second insertion post 232 of the first unit box 2 is inserted into the first insertion post 231 of the second unit box 2, and the second insertion post 232 of the second unit box 2 is inserted into the first insertion post 231 of the first unit box 2. Thus, two connection channels are formed between the first unit box 2 and the second unit box 2, facilitating the user to thread wires according to the usage scenario without the need to additionally cut the pipe fittings for connection, improving the convenience of connecting and installing the switch box 1.

[0052] As an embodiment of the present utility model, a plurality of reinforcing ribs 233 are further provided on the outer side of the second insertion post 232, and the plurality of reinforcing ribs 233 are equidistantly arranged along the circumferential direction of the second insertion post 232.

[0053] With this setting method, when the first insertion post 231 is connected to the second insertion post 232, the reinforcing ribs 233 play a buffering role between the first insertion post 231 and the second insertion post 232. It can not only ensure the interference fit between the second insertion post 232 and the first insertion post 231, with a tight connection, but also reduce the contact area when the first insertion post 231 and the second insertion post 232 are inserted, facilitating insertion.

[0054] As an embodiment of the present utility model, a clip 26 is further provided on the first side wall 24, and the clip 26 is used to clamp and connect the unit box 2 and the steel bar 5.

[0055] With this setting method, the common lateral rebar threading method is retained, enabling the steel bar 5 to be inserted into the clip 26 from the side for installation. Moreover, the clip 26 can accommodate the dimensional fluctuations of the steel bar 5 to a certain extent. The clip 26 can be directly pressed onto the steel bar 5 without the need to polish the steel bar 5, which is beneficial to improving the installation efficiency and application range.

[0056] As an embodiment of the present utility model, a plurality of positioning holes 28 are further provided on the unit box 2, and the positioning holes 28 are used for connection and positioning with the aluminum formwork in the building.

[0057] Nowadays, in building construction, recyclable aluminum formwork is mostly used to replace wooden formwork for pouring construction. With this setting method, when installing the switch box 1, the user can fix the switch box 1 on the aluminum formwork through the positioning holes 28. After the mortar pouring work is completed, the aluminum formwork is then removed, which is beneficial to ensuring that the bottom surface of the switch box 1 is flush with the pouring structure surface and improving the installation quality.

[0058] Embodiment 2

[0059] The following is the second embodiment of a splittable switch box of the present utility model. This embodiment is similar to Embodiment 1, except that it further includes a cover plate 3 and a shielding plate 29.

[0060] As an embodiment of the present utility model, the unit box 2 further includes a cover plate 3. A locking portion 27 is provided at the top of the unit box 2. A nut groove 271 is provided at the bottom of the locking portion 27, and a threaded hole 272 is provided at the top of the locking portion 27. A locking hole is provided on the cover plate 3, and a bolt passes through the locking hole and is threadedly connected to the locking portion 27.

[0061] Through this setting method, the cover plate 3 is tightly connected to the unit box 2 by bolts, which is beneficial to prevent small particles in the mortar material from infiltrating. When the threaded hole 272 fails due to force and the thread slips, a nut can be installed at the nut groove 271 to lock the bolt inserted into the locking portion 27, which is beneficial to improving the service life of the switch box 1.

[0062] As an embodiment of the present utility model, the locking portion 27 can also be used to connect to the switch panel. Through this setting method, during grouting installation, when the cover plate 3 is installed on the switch box 1, it can also play a fixing role, which is beneficial to reducing the deformation of the locking portion 27; and after pouring, the cover plate 3 is directly exposed on the outer surface of the wall, which is both beautiful and beneficial to determining the position of the locking portion 27, facilitating the installation of the switch panel.

[0063] As an embodiment of the present utility model, the threaded hole 272 is of a U-shaped structure. During the installation process of the switch box 1, it often undergoes a certain degree of deformation due to extrusion. Through this setting method, the U-shaped threaded hole 272 is beneficial to absorbing the dimensional fluctuations caused by the deformation, ensuring that the cover plate 3 and the unit box 2 can maintain a tight connection.

[0064] As an embodiment of the present utility model, a shielding plate 29 is further provided on the plugging portion 23 and the wire passing hole 21. A weakening groove is provided at the connection between the shielding plate 29 and the unit box 2. Through this setting method, during installation, the user can knock off the shielding plate 29 corresponding to the plugging portion 23 or the wire passing hole 21 according to the wiring requirements, while the shielding plates 29 on other unused wire passing holes 21 or plugging portions 23 remain in place. When installation is carried out after wiring is completed, the shielding plate 29 can keep the remaining plugging portions 23 and wire passing holes 21 in a closed state, preventing mortar from pouring into the switch box 1.

[0065] Embodiment 3

[0066] As Figure 4 And Figure 5 shown in the third embodiment of a spliceable switch box of the present utility model. This embodiment is similar to Embodiment 2, the difference being that it further includes a connection component 4.

[0067] As an embodiment of the present utility model, it further includes a connection assembly 4. The connection assembly 4 includes a threaded cylinder 41, a connection cylinder 42 and a connection pipe 43. The threaded cylinder 41 is connected to the wire passing hole 21 inside the unit box 2, the connection cylinder 42 is threadedly connected to the threaded cylinder 41 outside the unit box 2, and the connection pipe 43 is inserted into the connection cylinder 42.

[0068] As an embodiment of the present utility model, the threaded cylinder 41 includes a limit platform 411 and a threaded section 412.

[0069] Through this setting method, when it is necessary to externally connect a wire passing pipeline, the user can first pass the threaded cylinder 41 through the wire passing hole 21 from the inside of the unit box 2, and the limit platform 411 abuts against the side wall of the unit box 2; then place the connection cylinder 42 outside the unit box 2 and threadedly connect it to the threaded section 412 passing through the wire passing hole 21, and then insert the connection pipe 43 into the connection cylinder 42 to complete the connection; the threaded cylinder 41 and the connection cylinder 42 clamp the wire passing hole 21 in the middle from the inside and outside of the unit box 2 respectively to complete the connection, and then the connection pipe 43 is inserted into the connection cylinder 42. Compared with directly inserting the wire passing pipeline into the wire passing hole 21 of the ordinary unit box 2 and fixing it with an adhesive material, this connection method is more stable, has better sealing performance, and there is no need to wait for the adhesive material to solidify. It can be installed and disassembled multiple times for easy maintenance, greatly improving the work efficiency.

[0070] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limiting the embodiments of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the embodiments here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A splicable switch box, characterized in that: The invention comprises a plurality of unit boxes (2), wherein a wire hole (21), a connecting portion (22) and at least two plug-in portions (23) are provided on a side wall of the unit box (2), wherein the plug-in portion (23) and the connecting portion (22) are located on the same side wall of the unit box (2), and the plug-in portions (23) of different unit boxes (2) are used to be plugged into each other to form a connection channel, and different unit boxes (2) are detachably connected via the connecting portion (22), and the wire hole (21), the connecting portion (22) and the plug-in portion (23) do not overlap each other.

2. The splicable switch box according to claim 1, characterized in that: The unit box (2) is provided with two opposite first side walls (24) and two opposite second side walls (25); the connecting portion (22) and the plug-in portion (23) are both provided on the second side walls (25); the wire hole (21) is provided on the first side wall (24); and the second side wall (25) and the first side wall (24) are perpendicular to each other.

3. The connectable switch box according to claim 2, characterized in that: The connecting portion (22) comprises a first connecting platform (221) and a second connecting platform (222); the first connecting platform (221) is provided with a boss (223); the second connecting platform (222) is provided with a slot (224); the first connecting platform (221) and the second connecting platform (222) are respectively provided on two second side walls (25); the first connecting platform (221) of one unit box (2) and the second connecting platform (222) of another unit box (2) are detachably connected.

4. The connectable switch box according to claim 2, characterized in that: The plug-in portion (23) comprises a first plug-in column (231) and a second plug-in column (232); the first plug-in column (231) and the second plug-in column (232) are both hollow; the inner diameter of the first plug-in column (231) is larger than the inner diameter of the second plug-in column (232); the second plug-in column (232) of one unit box (2) can be inserted into the first plug-in column (231) of another unit box (2) to form a connection channel.

5. The splicable switch box according to claim 4, characterized in that: A plurality of reinforcing ribs (233) are also provided on the outer side of the second plug-in column (232), and the plurality of reinforcing ribs (233) are arranged equidistantly along the circumference of the second plug-in column (232).

6. The splicable switch box according to claim 2, characterized in that: The first side wall (24) is also provided with a clip (26), and the clip (26) is used for clamping with the steel bar (5).

7. The splicable switch box according to claim 1, characterized in that: The unit box (2) is also provided with a plurality of positioning holes (28), and the positioning holes (28) are used for connection and positioning with the aluminum formwork in the building.

8. The splicable switch box according to claim 1, characterized in that: The unit box (2) further comprises a cover plate (3); a locking portion (27) is provided at the top of the unit box (2); a nut groove (271) is provided at the bottom of the locking portion (27); a threaded hole (272) is provided at the top of the locking portion (27); a locking hole is provided on the cover plate (3); a bolt passes through the locking hole and is threadedly connected to the locking portion (27).

9. The splicable switch box according to claim 1, characterized in that: A shielding plate (29) is also provided on the plug-in portion (23) and the wire-through hole (21), and a weakening groove is provided at the connection between the shielding plate (29) and the unit box (2).

10. The connectable switch box according to any one of claims 1 to 9, characterized in that: The invention also comprises a connection assembly (4), the connection assembly (4) comprising a threaded barrel (41), a connection barrel (42) and a connection pipe (43), the threaded barrel (41) being connected to the wire hole (21) on the inner side of the unit box (2), the connection barrel (42) being threadedly connected to the threaded barrel (41) on the outer side of the unit box (2), and the connection pipe (43) being plugged into the connection barrel (42).

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