Anti-deformation support device for electric box

Abstract

The present invention discloses an anti-deformation support device for an electric box, and relates to the technical field of construction and installation of electrical components. The present invention comprises an outer support frame and an inner support frame, and the electric box is installed between the two. A support plate is located above the outer support frame, and a support clamp is installed between the support plate and the electric box; a thermal drive cavity and a pneumatic groove are provided inside the inner support frame, wherein the pneumatic groove and the pneumatic bolt in the support clamp form a piston structure. The present invention supports the electric box body by opening a thermal drive cavity inside the inner support frame, and utilizing the heat generated during operation to cause the air to expand due to heat; at the same time, by adding a support clamp between the outer support frame and the inner support frame as a shock-absorbing and buffering structure, on the one hand, buffering support is provided for the settlement pressure from the wall, and on the other hand, the pneumatic bolt in the support clamp is slid by utilizing the change in air pressure, which can not only support the support plate in reverse, but also discharge the hot air inside the electric box, thereby achieving heat dissipation inside the electric box and avoiding thermal expansion deformation caused by excessive temperature.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical equipment construction and installation, and in particular relates to an anti-deformation support device for an electrical box. Background Art

[0002] An electrical box usually refers to a distribution box, which is mainly used for the integration and wiring of power lines. Generally, electrical boxes are installed inside building walls. In actual working processes, they are often susceptible to deformation pressures from two aspects: one is the pressure generated when the internal concrete structure naturally settles after the wall construction is completed, and the other is the deformation caused by thermal expansion and contraction of the electrical box body in hot and cold environments. Both of these deformation forces can cause the electrical box body or shell to deform, and even cause damage to the electrical box itself. However, existing electrical boxes generally lack support structures to prevent deformation during installation, which requires the addition of corresponding external supports for protection. However, the existing technology usually only considers the pressure from the wall, and lacks sufficient protection and support for the deformation caused by natural thermal expansion and contraction. The protective effect is relatively single, and it is difficult to truly extend the service life of the electrical box.

[0003] Therefore, in order to solve the above problems, we designed an anti-deformation support device for the electrical box to fully protect against deformation caused by thermal expansion and contraction while resisting wall pressure. Summary of the invention

[0004] The purpose of the present invention is to provide an anti-deformation support device for an electrical box, so as to solve the problem that the existing anti-deformation structure has a single function and is difficult to prevent deformation due to thermal expansion and contraction.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an anti-deformation support device for an electric box, comprising an outer support frame and an inner support frame, wherein the outer support frame and the inner support frame are respectively nested in the outside and inside of the electric box, and there is a gap between the outer support frame and the wall of the electric box, and the gap is filled with a shock-absorbing or buffering structure, so that the pressure generated by the natural settlement during the construction of the building wall can be buffered, and at the same time, it is beneficial to the ventilation and heat dissipation of the electric box; the outer support frame comprises a bottom plate, a support plate and a load-bearing column, wherein the load-bearing column is arranged between the bottom plate and the support plate, and the support plate and the bottom plate have the same size, and the same size makes the force of the outer support frame more balanced;

[0007] A plurality of support clips are installed between the support plate and the upper surface of the electric box, and the support clips include a pneumatic bolt and a shock-absorbing spring sheet, wherein the side surface of the pneumatic bolt is welded to the shock-absorbing spring sheet; the shock-absorbing spring sheet is an "X"-shaped plate structure, and its four legs are in contact with the support plate and the electric box respectively, wherein the "X"-shaped shock-absorbing spring sheet can support the support plate and the electric box when the four legs contact the support plate and the electric box, and the elastic structure not only isolates the two, but also serves as a shock-absorbing and buffering structure; a fixing sleeve is installed on the side surface of the pneumatic bolt, and the lower end of the fixing sleeve is plugged into the wall of the electric box and connected to the inside of the electric box;

[0008] The supporting inner frame is a frame structure, with a thermal drive cavity provided inside the frame, a plurality of pneumatic grooves provided on the upper surface of the supporting inner frame, a plurality of connecting grooves provided on the inner side surface, and both the pneumatic grooves and the connecting grooves are connected to the thermal drive cavity; wherein the setting of the thermal drive cavity enables the internal electrical components to generate heat when the electric box is working, so that the air is expanded by the heat and then discharged through the connecting grooves; the pneumatic groove is connected to the fixing sleeve, and the two are sealed and adhered; the pneumatic plug, the pneumatic groove and the fixing sleeve together form a piston structure, and an air passage is provided inside the pneumatic plug, and the air passage is connected to the outside of the pneumatic plug, and the hot air discharged through the thermal drive cavity pushes the pneumatic plug to slide up when passing through the pneumatic groove and the fixing sleeve, and can provide reverse support to the support plate; at the same time, during the sliding process of the pneumatic plug, when the air passage is connected to the outside of the fixing sleeve, the hot air is discharged, and the inside of the electric box can be ventilated and heat dissipated, thereby avoiding thermal expansion and contraction of the electric box in special working weather.

[0009] Furthermore, the load-bearing column is a telescopic rod structure, including a connecting cylinder and two support rods, wherein the support rod is arranged inside the connecting cylinder and slidably cooperates with the connecting cylinder, and the two support rods extend from the opposite ends of the connecting cylinder respectively; several of the load-bearing columns are respectively arranged at the adjacent four corners of the supporting outer frame to support the pallet; wherein the support and fixation of the two support rods are achieved by injecting cement slurry into the connecting cylinder.

[0010] Furthermore, a connecting beam tube is welded between the two connecting cylinders on the same side; the connecting beam tube is a three-way tube structure, and a support plate is sleeved on the peripheral side surface of its input end, and the upper and lower surfaces of the support plate are respectively in contact with the support plate and the bottom plate, wherein the size of the support plate needs to be ground and cut according to the actual support distance between the support plate and the bottom plate, so that its upper surface contacts the support plate for auxiliary support of the support plate.

[0011] Furthermore, there is a gap between the support plate and the side wall of the electric box, and a gap between the bottom plate and the lower surface of the electric box, and the gaps are filled with a number of pressure-dividing spring plates; the pressure-dividing spring plates are of a "J"-shaped plate structure, and a number of pressure-dividing spring plates are respectively welded to the bottom plate and the support plate, and are all in contact with the electric box. In actual work, the pressure-dividing spring plates can disperse the pressure from the wall on both sides of the supporting external frame, and a number of pressure-dividing spring plates support each other when unfolded to avoid concentrated force in some areas.

[0012] Furthermore, a plurality of cable ducts are adhered to the inner bottom surface of the supporting inner frame, and the plurality of cable ducts sequentially penetrate the supporting inner frame, the electric box and the supporting outer frame and extend to the bottom of the bottom plate for arranging cables for the electrical components inside the electric box.

[0013] Furthermore, a sealing plug is installed inside the input end of the connecting beam tube, which is flush with the support plate, and a shock-absorbing spring is adhered between it and the support plate. The other end of the shock-absorbing spring is in contact with the electrical box, which can prevent the connecting beam tube from directly contacting the support plate and causing damage to it.

[0014] Furthermore, a method for installing an anti-deformation support device for an electrical box comprises the following steps:

[0015] Step 1: During the wall pouring process, a mounting groove for the supporting frame is reserved, the width of which is adapted to the length of the support plate and the height is greater than the length of the connecting cylinder; then the bottom plate of the supporting frame is placed at the bottom of the mounting groove, cement slurry is injected into the connecting cylinder to extend the support rod and support the support plate, so that it is pressed against the mounting groove, and then the connecting beam pipe is sealed with a sealing plug, wherein the sealing plug can also use air-dried and fixed cement slurry;

[0016] Step 2: Grind and cut the support plate according to the actual support height of the load-bearing column to make it an auxiliary support plate, and start wall construction after the cement slurry in the connecting cylinder is dry and fixed;

[0017] Step 3. After the wall construction is completed, drill holes on the upper and bottom surfaces of the electrical box, where the fixing sleeve of the support clip is inserted and fixed in the hole groove above the electrical box; then place the supporting inner frame inside the electrical box, and extend the wire pipe through the hole groove below the electrical box to the inside of the wall; during this period, make the two side surfaces and bottom of the electrical box tightly contact with the two feet of the pressure-dividing spring plate, and the installation is completed.

[0018] The present invention has the following beneficial effects:

[0019] The present invention can support and protect the inside and outside of the electrical box body at the same time by arranging an outer support frame and an inner support frame; the outer support frame includes a support plate, a bottom plate and a load-bearing column, and the protection strength can be adjusted according to the actual installation area and the specifications of the electrical box by using a telescopic structure; a thermal drive cavity is provided inside the inner support frame, and the heat generated during operation is used to expand the air to support the electrical box body; at the same time, a support clamp is installed between the outer support frame and the inner support frame as a shock-absorbing and buffering structure, on the one hand, the settlement pressure from the wall is buffered and supported, and on the other hand, the air pressure change is used to slide the pneumatic bolt in the support clamp, which can not only reversely support the support plate, but also discharge the hot air inside the electrical box, thereby achieving heat dissipation inside the electrical box and avoiding thermal expansion deformation caused by excessive temperature.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 This is an assembly structure diagram of an anti-deformation support device for an electrical box of the present invention;

[0023] Figure 2 A top view of an anti-deformation support device for an electric box according to the present invention;

[0024] Figure 3 for Figure 2 Structural diagram of the middle section AA;

[0025] Figure 4 for Figure 3 A partial display of part B in the middle;

[0026] Figure 5 for Figure 3 A partial display of part C in the middle;

[0027] Figure 6 for Figure 3 Schematic diagram of the structure of DD in the middle section;

[0028] Figure 7 for Figure 3 Schematic diagram of the structure of EE in the middle section;

[0029] Figure 8 for Figure 7 A partial view of part F in the middle.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Support outer frame; 2. Support inner frame; 101. Bottom plate; 102. Support plate; 103. Load-bearing column; 104. Support clamp; 105. Pneumatic bolt; 106. Shock-absorbing spring; 107. Fixed sleeve; 201. Thermal drive chamber; 202. Pneumatic groove; 203. Connecting notch; 108. Connecting cylinder; 109. Support rod; 110. Connecting beam tube; 111. Support plate; 112. Pressure-dividing spring plate; 204. Wire pipe; 113. Sealing plug; 114. Shock-absorbing spring; 115. Air duct. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] Embodiment 1:

[0035] See also Figure 1-Figure 8 As shown, the present invention is an anti-deformation support device for an electric box, comprising an outer support frame 1 and an inner support frame 2, wherein the outer support frame 1 and the inner support frame 2 are respectively nested in the outside and inside of the electric box, and there is a gap between the outer support frame 1 and the wall of the electric box, and the gap is filled with a shock-absorbing or buffering structure, so that the pressure generated by the natural settlement during the construction of the building wall can be buffered, and at the same time, it is beneficial to the ventilation and heat dissipation of the electric box; the outer support frame 1 comprises a bottom plate 101, a support plate 102 and a load-bearing column 103, wherein the load-bearing column 103 is arranged between the bottom plate 101 and the support plate 102, and the support plate 102 has the same size as the bottom plate 101, and the same size makes the force of the outer support frame 1 more balanced;

[0036] A plurality of support clips 104 are installed between the support plate 102 and the upper surface of the electric box. The support clips 104 include a pneumatic bolt 105 and a shock-absorbing spring sheet 106, wherein the side surface of the pneumatic bolt 105 is welded to the shock-absorbing spring sheet 106; the shock-absorbing spring sheet 106 is an "X"-shaped plate structure, and its four feet are respectively in contact with the support plate 102 and the electric box, wherein the "X"-shaped shock-absorbing spring sheet 106 can support the support plate 102 and the electric box when the four feet contact the support plate 102 and the electric box, and the elastic structure not only isolates the two, but also serves as a shock-absorbing and buffering structure; a fixing sleeve 107 is installed on the side surface of the pneumatic bolt 105, and the lower end of the fixing sleeve 107 is plugged into the wall of the electric box and connected to the inside of the electric box;

[0037] The inner support frame 2 is a frame structure, and a thermal drive cavity 201 is provided inside the frame. A plurality of pneumatic grooves 202 are provided on the upper surface of the inner support frame 2, and a plurality of connecting grooves 203 are provided on the inner side surface, and the pneumatic grooves 202 and the connecting grooves 203 are both connected to the thermal drive cavity 201; wherein the thermal drive cavity 201 is arranged so that when the electric box is working, the internal electrical components generate heat so that the air expands due to the heat and is discharged through the connecting grooves 203; the pneumatic groove 202 is connected to the fixing sleeve 107, and the two are sealed and adhered; the pneumatic plug 105 is connected to the pneumatic groove 202 and the fixing sleeve 107, and ... The sleeve 107 together constitutes a piston structure, and an air passage 115 is opened inside the pneumatic bolt 105, and the air passage 115 is connected to the outside of the pneumatic bolt 105. The hot air discharged from the thermal drive chamber 201 pushes the pneumatic bolt 105 to slide up through the pneumatic groove 202 and the fixed sleeve 107, and can provide reverse support for the support plate 102; at the same time, during the upward sliding process of the pneumatic bolt 105, when the air passage 115 is connected to the outside of the fixed sleeve 107, the hot air is discharged, and the interior of the electric box can be ventilated and heat dissipated, thereby avoiding thermal expansion and contraction of the electric box in special working weather.

[0038] Preferably, the load-bearing column 103 is a telescopic rod structure, including a connecting cylinder 108 and two support rods 109, wherein the support rod 109 is arranged inside the connecting cylinder 108 and slidably cooperates with the connecting cylinder 108, and the two support rods 109 extend from the opposite ends of the connecting cylinder 108 respectively; a plurality of load-bearing columns 103 are respectively arranged at the adjacent four corners of the supporting outer frame 1, for supporting the pallet 102; wherein the support and fixation of the two support rods 109 are achieved by injecting cement slurry into the connecting cylinder 108.

[0039] Preferably, a connecting beam tube 110 is welded between the two connecting cylinders 108 on the same side; the connecting beam tube 110 is a three-way tube structure, and a support plate 111 is sleeved on the side surface around its input end, and the upper and lower surfaces of the support plate 111 are in contact with the support plate 102 and the bottom plate 101 respectively, wherein the size of the support plate 111 needs to be ground and cut according to the actual supporting distance between the support plate 102 and the bottom plate 101, so that its upper surface contacts the support plate 102, for auxiliary support of the support plate 102.

[0040] Preferably, there is a gap between the support plate 111 and the side wall of the electric box, and there is a gap between the bottom plate 101 and the lower surface of the electric box, and the gaps are filled with a plurality of pressure-dividing spring plates 112; the pressure-dividing spring plates 112 are of a "J"-shaped plate structure, and the plurality of pressure-dividing spring plates 112 are respectively welded to the bottom plate 101 and the support plate 111, and are all in contact with the electric box. In actual operation, the pressure-dividing spring plates 112 can disperse the pressure from the wall on both sides of the supporting external frame 1, and the plurality of pressure-dividing spring plates 112 support each other when unfolded to avoid concentrated force on some areas.

[0041] Preferably, a plurality of cable ducts 204 are adhered to the inner bottom surface of the supporting inner frame 2, and the plurality of cable ducts 204 sequentially penetrate the supporting inner frame 2, the electrical box and the supporting outer frame 1, and extend to the bottom of the bottom plate 101, for wiring of electrical components inside the electrical box.

[0042] Preferably, a sealing plug 113 is installed inside the input end of the connecting beam tube 110, the sealing plug 113 is flush with the support plate 111, and a shock-absorbing spring 114 is adhered between it and the support plate 111, and the other end of the shock-absorbing spring 114 is in contact with the electrical box, which can prevent the connecting beam tube 110 from directly contacting the support plate 111 and causing damage to it.

[0043] Embodiment 2:

[0044] A method for installing an anti-deformation support device for an electrical box, comprising the following steps:

[0045] Step 1: During the wall pouring process, a mounting groove for supporting the external frame 1 is reserved, the width of which is adapted to the length of the support plate 102 and the height is greater than the length of the connecting cylinder 108; then the bottom plate 101 of the supporting external frame 1 is placed at the bottom of the mounting groove, cement slurry is injected into the connecting cylinder 108 to extend the support rod 109 and support the support plate 102, so that it is pressed against the mounting groove, and then the connecting beam tube 110 is sealed with a sealing plug 113, wherein the sealing plug 113 can also use air-dried and fixed cement slurry;

[0046] Step 2: Grind and cut the support plate 111 according to the actual support height of the load-bearing column 103 to make it assist in supporting the support plate 102, and start the wall construction after the cement slurry in the connecting cylinder 108 is dried and fixed;

[0047] Step 3: After the wall construction is completed, holes are drilled on the upper and bottom surfaces of the electrical box, wherein the fixing sleeve 107 of the support clip 104 is inserted and fixed in the upper hole groove of the electrical box; then the supporting inner frame 2 is placed inside the electrical box, and the cable duct 204 is extended to the inside of the wall through the hole groove below the electrical box; during this period, the two side surfaces and bottom surface of the electrical box are in close contact with the two feet of the pressure dividing spring plate 112, and the installation is completed.

[0048] Embodiment 3:

[0049] It should be supplemented that the anti-deformation support device for the electric box of the present invention needs to be installed in combination with the specific construction process of the building wall; during the installation process, the support plate 102 is mainly supported by the load-bearing column 103 to withstand the pressure applied by the natural settlement of the wall above the installation groove; and the connecting cylinder 108 of the load-bearing column 103 is filled with air-dried and solidified cement slurry, which strengthens the supporting effect of the load-bearing column 103; after the support outer frame 1 is installed, the electric box and the support inner frame 2 are installed inside it to ensure that the outer surface of the electric box is in contact with the shock-absorbing spring sheet 106 and the pressure-dividing spring plate 112, so as to disperse the pressure from the wall;

[0050] After assembly, when the electric box works in a low-temperature environment, the heat generated by the electrical components inside the electric box causes the air inside the electric box to expand due to the heat, and can be injected into the fixing sleeve 107 through the thermal drive cavity 201 and the pneumatic groove 202, pushing out the pneumatic plug 105. When the air passage 115 is connected to the outside of the fixing sleeve 107, the hot air is discharged to achieve the heat dissipation process inside the electric box; at the same time, the rising pneumatic plug 105 can also reversely support the support plate 102 through the shock-absorbing spring sheet 106; therefore, in this process, the thermal expansion and contraction deformation caused by the temperature difference between the inside and outside of the electric box can be effectively avoided;

[0051] On the other hand, in a high-temperature working environment, the external ambient temperature can form a dynamic balance with the ambient temperature inside the electrical box at the sliding position of the pneumatic bolt 105, so that the pressure of the air inside and outside the electrical box on the electrical box also presents a dynamic balance, preventing local or unidirectional force.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-deformation support device for an electrical box, comprising an outer support frame (1) and an inner support frame (2), characterized in that: The supporting outer frame (1) and the supporting inner frame (2) are respectively nested in the outside and inside of the electrical box, and there is a gap between the supporting outer frame (1) and the wall of the electrical box; the supporting outer frame (1) comprises a bottom plate (101), a supporting plate (102) and a load-bearing column (103), wherein the load-bearing column (103) is arranged between the bottom plate (101) and the supporting plate (102), and the supporting plate (102) and the bottom plate (101) have the same size; A plurality of support clips (104) are installed between the support plate (102) and the upper surface of the electric box. The support clips (104) include a pneumatic bolt (105) and a shock-absorbing spring sheet (106), wherein the side surface of the pneumatic bolt (105) is welded to the shock-absorbing spring sheet (106); the shock-absorbing spring sheet (106) is an "X"-shaped plate structure, and its four legs are respectively in contact with the support plate (102) and the electric box; a fixing sleeve (107) is installed on the side surface of the pneumatic bolt (105), and the lower end of the fixing sleeve (107) is plugged into the wall of the electric box and communicated with the inside of the electric box; The supporting inner frame (2) is a frame structure, a thermal driving chamber (201) is provided inside the frame, a plurality of pneumatic grooves (202) are provided on the upper surface of the supporting inner frame (2), a plurality of connecting grooves (203) are provided on the inner side surface, and both the pneumatic grooves (202) and the connecting grooves (203) are connected to the thermal driving chamber (201); the pneumatic groove (202) is connected to the fixing sleeve (107), and the two are sealed and adhered; the pneumatic plug (105) and the pneumatic groove (202) and the fixing sleeve (107) together form a piston structure; the pneumatic plug (105) is provided with an air passage (115) inside, and the air passage (115) is connected to the outside of the pneumatic plug (105).

2. The anti-deformation support device for an electric box according to claim 1, characterized in that: The load-bearing column (103) is a telescopic rod structure, comprising a connecting cylinder (108) and two supporting rods (109), wherein the supporting rods (109) are arranged inside the connecting cylinder (108) and slidably cooperate with the connecting cylinder (108); a plurality of the load-bearing columns (103) are respectively arranged at four adjacent corners of the supporting outer frame (1).

3. The anti-deformation support device for an electric box according to claim 2, characterized in that: A connecting beam pipe (110) is welded and connected between the two connecting cylinders (108) on the same side; the connecting beam pipe (110) is a three-way pipe structure, and a support plate (111) is sleeved on the side surface around the input end thereof, and the upper and lower surfaces of the support plate (111) are in contact with the support plate (102) and the bottom plate (101) respectively.

4. The anti-deformation support device for an electric box according to claim 3, characterized in that: There is a gap between the support plate (111) and the side wall of the electric box, and there is a gap between the bottom plate (101) and the lower surface of the electric box, and a plurality of pressure-dividing spring plates (112) are filled in the gaps; the pressure-dividing spring plates (112) are of a "J"-shaped plate structure, and the plurality of pressure-dividing spring plates (112) are respectively welded to the bottom plate (101) and the support plate (111), and are all in contact with the electric box.

5. The anti-deformation support device for an electric box according to claim 4, characterized in that: A plurality of cable ducts (204) are bonded to the inner bottom surface of the supporting inner frame (2), and the plurality of cable ducts (204) successively penetrate the supporting inner frame (2), the electrical box and the supporting outer frame (1), and extend to the bottom of the bottom plate (101).

6. The anti-deformation support device for an electric box according to claim 5, characterized in that: A sealing plug (113) is installed inside the input end of the connecting beam tube (110), the sealing plug (113) is flush with the support plate (111), and a shock-absorbing spring (114) is adhered between the sealing plug and the support plate (111), and the other end of the shock-absorbing spring (114) is in contact with the electrical box.

7. The installation method of the anti-deformation support device of an electric box according to claim 6 is characterized in that: The following steps are involved: Step 1: during the wall pouring process, a mounting groove for the supporting frame (1) is reserved, the width of which is adapted to the length of the support plate (102) and the height of which is greater than the length of the connecting cylinder (108); then the bottom plate (101) of the supporting frame (1) is placed at the bottom of the mounting groove, cement slurry is injected into the connecting cylinder (108) to make the supporting rod (109) extend and support the support plate (102) so that it is pressed against the mounting groove, and then the connecting beam tube (110) is sealed with a sealing plug (113); Step 2: Grind and cut the support plate (111) according to the actual support height of the load-bearing column (103) to make it assist in supporting the support plate (102), and start the wall construction after the cement slurry in the connecting cylinder (108) is dried and fixed; Step 3: After the wall construction is completed, holes are drilled on the upper surface and the bottom surface of the electric box, wherein the fixing sleeve (107) of the support clip (104) is inserted and fixed in the hole groove above the electric box; then the supporting inner frame (2) is placed inside the electric box, and the cable duct (204) is extended to the inside of the wall through the hole groove below the electric box; during this process, the two side surfaces and the bottom surface of the electric box are in close contact with the two feet of the pressure dividing spring plate (112), and the installation is completed.

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