CN110011199B

CN110011199B - Power box used on forest floor

Info

Publication number: CN110011199B
Application number: CN201910182492.3A
Authority: CN
Inventors: 邹许
Original assignee: Shaoxing Millie Agricultural Technology Co ltd
Current assignee: Shaoxing Zhenji Textile Co ltd
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2020-06-12
Anticipated expiration: 2039-03-12
Also published as: CN110011199A

Abstract

The invention discloses an electric power box used on the ground of a forest, which relates to the field of electric power boxes and comprises a heat dissipation port, a box body, a top cover and a box door, wherein the heat dissipation port is arranged below the top cover, the outer surface of the heat dissipation port is embedded and installed on the box body, when an electric wire is connected with the electric power box, the bottom of an electric wire pipe nested with electric wires and cables is tightened up by using bolts, the top of the electric wire pipe is pulled by a manual pull ring to enable an inner ring body to be tightly attached to the three electric wires and cables, liquid on a liquid cavity and a liquid connecting channel has strong killing effect on plants, the plants can stop growing and do not extend into the electric power box, the plants extend into the electric power box after normal loss and thermal evaporation of the liquid for a long time, the plants grow horizontally, a displacement plate is pushed rightwards, a sealing plate moves downwards to compress a built-in spring, a right knife plate and a left knife plate move downwards to cut the plants, and the plants, causing cleaning trouble and danger.

Description

Power box used on forest floor

Technical Field

The invention relates to the field of power boxes, in particular to a power box used on the ground of a forest.

Background

The power box is usually installed on the ground, the power box electricity is an indispensable energy source for people's daily life, and for accurate measurement of electric energy, an electric energy meter is installed on a line of a power consumer.

The big easy extension of electric power box bottom end hole gap is gone into the incasement, and the plant is stretched into equally easily in electric power box heat dissipation department, and it twines with the electric power incasement interior circuit easily to extend the interior growth of electric power incasement as the plant, clears up improper easy damaged electric wire, and the clearance has certain danger.

Summary of the invention

(A)Solves the technical problem

Aiming at the defects in the prior art, the invention aims to provide the power box used on the ground in the forest, and solves the problems that the existing plants extending into the power box are easy to grow and wind with the circuits in the power box, the wires are easy to damage due to improper cleaning, and the cleaning is dangerous to a certain extent.

(II)Technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an electric power box that woodland ground used, its structure includes thermovent, box, top cap, chamber door.

The heat dissipation port is arranged below the top cover, the outer surface of the heat dissipation port is embedded and installed on the box body, the upper surface of the box body is welded with the lower surface of the top cover, the inner surface of the box body is embedded with the outer surface of the box door, the edge of the box door is hinged with the box body, the top cover is arranged above the box door, the included angle between the top cover and the box door is 90 degrees, the box door is of a cuboid structure, and the box body and the box door are made of.

The heat dissipation port comprises a left cavity, a gap plate, a hollow cavity, a liquid connecting channel, an evaporation channel and an air channel, wherein the right side of the left cavity is connected with the left side of the hollow cavity; the outer surface of the liquid connecting channel is embedded in the evaporation channel, the evaporation channel is located above the air channel, the left side of the air channel is connected with the right side of the hollow cavity, the gap plate is made of iron, and the left cavity is made of plastic.

The box is including connecing oil pipe, electric power meter, constriction device, cylinder body, sleeve, the body of rod, reset spring, displacement board, cleaing away the plant device, connecing the electroplax, connect the oil pipe bottom to be connected with the cylinder body top, the embedding of electric power meter back is installed on connecing the electroplax, constriction device is located the cylinder body right side, cylinder body internal surface and displacement board surface laminate mutually, the laminating of sleeve internal surface and body of rod surface mutually and both can take place relative movement, the reset spring internal surface is nested mutually with the sleeve surface, the reset spring right side welds with the displacement board left side mutually, it locates the electroplax left side to clear away the plant device, it is 2cm to connect whole cavity ring structure and the outer radius of oil pipe, the displacement board is the cuboid structure and is made by light iron, and the edge adopts the leakproofness design.

Preferably, constriction device includes guide rail, upper seal ring, cell body, wire tube, solid slab, backing plate, bolt, the guide rail is located the upper seal ring below, guide rail surface mounting is on the cell body, the cell body is put on the shelf and is equipped with the wire tube, the wire tube is equipped with 3 altogether, the wire tube surface bonds mutually with solid slab right side surface and the slip extreme position of left side wire tube both sides is promptly for the solid slab is inboard, the wire tube right side surface is laminated mutually with the backing plate surface, backing plate and bolt threaded connection, the backing plate is the cuboid structure and is made by the aluminum alloy.

Preferably, clear away the plant device and include down press cylinder, right cutting board, left cutting board, the press cylinder is located right cutting board top and contained angle between the two and is 45 degrees down, right cutting board left side is connected and both symmetric distribution with left cutting board right side, left cutting board is located down and is pressed the cylinder below and contained angle between the two and be 45 degrees.

Preferably, the lower cylinder comprises a straight rod, a cylinder shell body, a limiting bottom plate, a built-in spring and a sealing plate, the outer surface of the straight rod is embedded in the cylinder shell body, the inner surface of the cylinder shell body is attached to the outer surface of the sealing plate, the limiting bottom plate is arranged at the bottom end of the cylinder shell body, the inner surface of the built-in spring is embedded in the outer surface of the straight rod, the bottom end of the built-in spring is welded to the top end of the limiting bottom plate, and the sealing plate is of a cylindrical structure.

Preferably, the bottom end of the oil receiving pipe is connected with the bottom end of the cylinder shell body, and the oil receiving pipe is made of rubber.

Preferably, the upper seal ring comprises a manual pull ring, an outer ring body and an inner ring body, the outer surface of the manual pull ring is embedded in the outer ring body, the inner surface of the outer ring body is bonded with the outer surface of the inner ring body, the outer surface and the inner surface are tightly adhered, and the manual pull ring is made of polyvinyl chloride.

Preferably, right side cutting board includes tip, sawtooth head, dentition frame, cushion, rubber ring, mounting panel, the tip welds on the mounting panel, sawtooth head back weld on the dentition frame, dentition frame surface embedding is installed on the rubber ring and between the two uses the bonding, the cushion is openly laminated mutually and is adopted the viscose bonding between the two with the rubber ring back, the cushion is openly surface embedding is installed on the mounting panel, the tip is made for the stainless steel, is equipped with 5 altogether, the sawtooth head is equipped with 4 altogether.

Preferably, the right cutting board is arranged on the front surface of the displacement board, the left cutting board and the displacement board are not located on the same plane, and the right cutting board is integrally made of stainless steel.

(III)Advantageous effects

When the electric wire is connected with an electric box, the bottom of the electric wire pipe of the nested electric wire cable is slowly tightened up by screwing the bolt into the base plate, the top of the electric wire pipe is lifted by a manual pull ring to enable the inner ring body to be tightly attached to the three electric wire cables, plants pass through the gap plate and enter the left cavity body to extend onto the evaporation channel, liquid on the liquid cavity and the liquid connection channel has strong harm to the plants, the plants stop growing and do not extend into the inner ring body, after the liquid is normally consumed and evaporated after long-time use and is heated, the plants do not exist, the plants extend into the electric box, as the pipe orifices are horizontally arranged, the plants grow horizontally, the displacement plate is pushed rightwards, oil in the cylinder body enters the outer cylinder shell body through the oil receiving pipe, the sealing plate moves downwards and compresses the built-in spring, the right knife plate and the left knife plate move downwards to cut the plants, the tips on the, greatly strengthened the effect of cutting, after having cut, the displacement board no longer moves to the right, and fluid backward flow is under the effect of built-in spring elasticity, and each subassembly resumes initial position, and prevention plant that can be fine extends to get into and gets into the back and carries out the preliminary treatment temporarily and avoid the plant winding to cause the trouble and danger of clearance between each electric wire of power box.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of an electric power box used on the ground of a forest;

FIG. 2 is a front cross-sectional view of a case for use on the ground of a forest floor in accordance with the present invention;

FIG. 3 is an interior side view of a vegetation removal device for use on a forest floor in accordance with the present invention;

FIG. 4 is a schematic structural view of a heat dissipating vent in an electric box for use on a forest floor according to the present invention;

FIG. 5 is a schematic view of the structure of a retraction device in an electric box for use on the ground of a forest;

FIG. 6 is a schematic structural view of a device for removing plants in an electric cabinet used on the ground of a forest;

FIG. 7 is a schematic structural view of a right knife board in an electric box used on the ground of a forest;

FIG. 8 is a schematic structural view of an upper seal ring of a power box used on the ground of a forest according to the present invention;

in the figure: a heat dissipation port-1, a box body-2, a top cover-3, a box door-4, a left cavity-11, a gap plate-12, a hollow cavity-13, a liquid cavity-14, a liquid connecting channel-15, an evaporation channel-16, an air channel-17, an oil connecting pipe-201, an electric power meter-202, a contraction device-203, a cylinder body-204, a sleeve-205, a rod body-206, a reset spring-207, a displacement plate-208, a cleaning plant device-209, an electric connecting plate-210, a guide rail-2031, an upper sealing ring-2032, a groove body-2033, an electric wire pipe-2034, a solid plate-2035, a backing plate-2036, a bolt-2037, a lower pressing cylinder-2091, a right knife plate-2092, a left knife plate-2093, a straight rod-20911, a cylinder outer shell-20912, a cylinder outer shell, The device comprises a limit bottom plate-20913, an internal spring-20914, a sealing plate-20915, a manual pull ring-20321, an outer ring body-20322, an inner ring body-20323, a sharp head-20921, a sawtooth head-20922, a tooth rack-20923, a soft cushion-20924, a rubber ring-20925 and a mounting plate-20926.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides an electric power box used on the ground of a forest, which comprises: the structure of the box comprises a heat dissipation opening 1, a box body 2, a top cover 3 and a box door 4.

The utility model discloses a case, including

top cap

3, 2 internal surfaces of box, 4 external surfaces of chamber door, and 4 edges of chamber door and 2 hinged joint of box, top cap 3 is located 4 tops of chamber door and the contained angle between the two is 90 degrees, chamber door 4 is the cuboid structure, box 2, chamber door 4 are made for the stainless steel, meet the water difficult corrosion in the open air, are more applicable to as the system case material for other metal materials such as iron, and long service life just easily polishes.

The heat dissipation port 1 comprises a left cavity 11, a gap plate 12, a hollow cavity 13, a liquid cavity 14, a liquid connecting channel 15, an evaporation channel 16 and an air channel 17, wherein the right side of the left cavity 11 is connected with the left side of the hollow cavity 13, the gap plate 12 is installed on the left side of the left cavity 11 and tightly attached to the left side of the left cavity and the liquid cavity, the right side of the hollow cavity 13 is connected with the left side of the liquid cavity 14, the liquid cavity 14 is connected with the liquid connecting channel 15 which is of an integrated structure and is internally provided with liquid, the liquid cavity 14 and the liquid connecting channel 15 are internally provided with liquid which can play a strong killing role on plants, the internal structure is bent, the plants can be well prevented from stretching into an electric power box, once stretching into the electric power box, the liquid in the right cavity has a strong killing power on the plants, the outer surface of the liquid connecting channel 15 is embedded in the evaporation channel 16, the evaporation channel 16 is positioned above the air channel 17, the gap plate 12 is made of iron, has good ductility and heat conductivity, and can enhance the heat dissipation effect, the left cavity 11 is made of plastic, the cavity can be made of a mold, the whole mass is light, the heat dissipation port 1 adopts a plurality of heat dissipation channels, namely the air duct 17, the middle cavity 13 adopts a longer-distance communicated gap design, the heat in the power box is finally collected at the left cavity 11 to be dissipated, the heat dissipation performance is strong, and the heat accumulation amount is small.

The box body 2 comprises an oil receiving pipe 201, an electric power meter 202, a shrinking device 203, a cylinder body 204, a sleeve 205, a rod body 206, a return spring 207, a displacement plate 208, a plant removing device 209 and an electric connection plate 210, wherein the bottom end of the oil receiving pipe 201 is connected with the top end of the cylinder body 204, the back surface of the electric power meter 202 is embedded and installed on the electric connection plate 210, the shrinking device 203 is positioned on the right side of the cylinder body 204, the inner surface of the cylinder body 204 is attached to the outer surface of the displacement plate 208, the inner surface of the sleeve 205 is attached to the outer surface of the rod body 206 and can relatively move, the inner surface of the return spring 207 is embedded into the outer surface of the sleeve 205, the right side of the return spring 207 is welded with the left side of the displacement plate 208, the plant removing device 209 is arranged on the left side of the electric connection plate 210, the oil receiving pipe 201 is integrally, the displacement plate 208 is of a cuboid structure and is made of light iron, the edge of the displacement plate is designed in a sealing mode, the surface of the displacement plate is dense, and the displacement plate is convenient to move.

Preferably, the shrinking device 203 includes a guide rail 2031, an upper seal ring 2032, a groove 2033, a wire tube 2034, a solid plate 2035, a backing plate 2036, and a bolt 2037, the guide rail 2031 is located below the upper seal ring 2032, an outer surface of the guide rail 2031 is mounted on the groove 2033, the groove 2033 is provided with the wire tube 2034, the number of the wire tubes 2034 is 3, the outer surface of the wire tube 2034 is adhered to the right surface of the solid plate 2035, the sliding limit positions of both sides of the left wire tube 2034 are the inner side of the solid plate 2035, the right surface of the wire tube 2034 is adhered to the outer surface of the backing plate 6, the backing plate 2036 is in threaded connection with the bolt 2037, the backing plate 2036 is of a rectangular parallelepiped structure and is made of aluminum alloy, which has the advantages of light weight and large hardness, the wire tube 2034 is inserted into the electric box, the distance between the three electric wires can be adjusted and flexible, and the large gap can be exposed when the electric box terminal of the electric wire can be, the base plate 2036 can be screwed in and pushed by the matching of the bolt 2037 and the base plate 2036, and the electric wire drawn into the electric box at the bottom end can be reinforced tightly by the upper sealing ring 2032 for further sealing.

Preferably, the device 209 for removing plants includes a downward pressing cylinder 2091, a right knife plate 2092 and a left knife plate 2093, the downward pressing cylinder 2091 is located above the right knife plate 2092 and an included angle therebetween is 45 degrees, the left side of the right knife plate 2092 is connected with the right side of the left knife plate 2093 and the two are symmetrically distributed, the left knife plate 2093 is located below the downward pressing cylinder 2091 and an included angle therebetween is 45 degrees, the bottom end surfaces of the left knife plate 2093 and the right knife plate 2092 are sharp, so that the device has strong cutting capability, and plants can be cut off well when being stretched into the device.

Preferably, the downward-pressing cylinder 2091 includes a straight rod 20911, a cylinder outer shell 20912, a limit bottom plate 20913, an internal spring 20914 and a sealing plate 20915, the outer surface of the straight rod 20911 is embedded and mounted on the cylinder outer shell 20912, the inner surface of the cylinder outer shell 20912 is attached to the outer surface of the sealing plate 20915, the limit bottom plate 20913 is mounted at the bottom end of the cylinder outer shell 20912, the inner surface of the internal spring 20914 is nested with the outer surface of the straight rod 20911, the bottom end of the internal spring 20914 is welded to the top end of the limit bottom plate 20913, the sealing plate 20915 is of a cylindrical structure and made of rubber, has strong sealing performance, can prevent oil from leaking from the side edge after oil is injected into the cylinder outer shell 20912, the internal spring 20914 is elastically deformed and enhanced while being pressed downward by the sealing plate 20915, the restoring force is strong, the position of the internal spring 20914 is well limited by the bottom limit bottom, after the cutter cuts off plants, the oil flows back and is quickly reset under the action of the built-in spring 20914.

Preferably, the bottom end of the oil receiving pipe 201 is connected with the bottom end of the cylinder outer shell 20912, and the oil receiving pipe 201 is made of rubber, so that oil can be conveyed well to be transferred, and the oil pipe can be retracted well in the oil inlet and return processes.

Preferably, the upper seal ring 2032 comprises a manual pull ring 20321, an outer ring body 20322 and an inner ring body 20323, the outer surface of the manual pull ring 20321 is embedded in the outer ring body 20322, the inner surface of the outer ring body 20322 is bonded with the outer surface of the inner ring body 20323, and the two are tightly bonded, the manual pull ring 20321 is made of polyvinyl chloride, and the whole manual pull ring 20321 is harder than rubber, and can tighten the electric wires and reduce gaps.

Preferably, the right knife plate 2092 includes a tip 20921, a saw-tooth head 20922, a rack 20923, a soft pad 20924, a rubber ring 20925, and a mounting plate 20926, the tip 20921 is welded to the mounting plate 20926, the back of the saw-tooth head 20922 is welded to the rack 20923, the outer surface of the rack 20923 is embedded in the rubber ring 20925 and adhered to the rubber ring 20925 by 502, the front of the soft pad 20924 is attached to the back of the rubber ring 20925 and adhered to the rubber ring 20925 by glue, the outer surface of the front of the soft pad 20924 is embedded in the mounting plate 20926, the mounting plate 20926 is disposed on the right side of the left knife plate 2093, the tip 20921 has 5 parts and is made of stainless steel, which has strong rust-proof performance, is not easy to be oxidized and rusted, the cutting performance is not reduced by rusting, the saw-tooth head 20922 has 4 parts, and the rear material is an elastic rubber material, which can be expanded well, and can be squeezed and adapted when the, and then the plants are better jointed and cut off by means of elastic deformation recovery.

Preferably, the right knife plate 2092 is disposed on the front surface of the displacement plate 208, the left knife plate 2093 and the displacement plate 208 are not located on the same plane, and the right knife plate 2092 is made of stainless steel, so that when a plant is cut, moisture contained in the plant stem is attached to the surface of the plant stem, and the sharpness of the right knife plate 2092 is not easily affected before and after the moisture is evaporated.

The working principle is that when the electric wire is connected with an electric box, a bolt 2037 is screwed into a backing plate 2036 to slowly tighten the bottom of an electric wire pipe 2034 of the nested electric wire cable, the top of the electric wire pipe is lifted by a manual pull ring 20321 to make an inner ring body 20323 cling to three electric wire cables, plants pass through a gap plate 12 and enter a left cavity 11 and extend into an evaporation channel 16, liquid on a liquid cavity 14 and a liquid connecting channel 15 has strong harm to the plants, the plants can stop growing and do not extend into the liquid, after the liquid is normally consumed and heated and evaporated after long-time use, no liquid exists, the plants extend into the electric box, as the pipe orifices are horizontally arranged, the plant grows horizontally, a displacement plate 208 is pushed rightwards, oil in a cylinder body 204 enters a cylinder outer shell 20912 through an oil connecting pipe 201, a sealing plate 20915 moves downwards and compresses a built-in spring 20914, a right knife plate 2092, a left knife 2093 moves downwards to cut the plants, a sharp head 21 on the right knife 2092 and a sawtooth head 20922 for cutting different-radius plants by utilizing, greatly strengthened the effect of cutting, after having cut, displacement plate 208 no longer moves to the right, and fluid backward flow, under the effect of built-in spring 20914 elasticity, each subassembly resumes initial position, and prevention plant that can be fine extends to get into and gets into the back and carries out the preliminary treatment temporarily and avoid the plant winding to cause the trouble and danger of clearance between each electric wire of power box.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an electric power box that woodland ground used, its structure includes thermovent (1), box (2), top cap (3), chamber door (4), its characterized in that: the heat dissipation port (1) is arranged below the top cover (3), the outer surface of the heat dissipation port (1) is embedded in the box body (2), the upper surface of the box body (2) is welded with the lower surface of the top cover (3), the inner surface of the box body (2) is nested with the outer surface of the box door (4), and the top cover (3) is positioned above the box door (4); the heat dissipation port (1) comprises a left cavity (11), a gap plate (12), a hollow cavity (13), a liquid cavity (14), a liquid connecting channel (15), an evaporation channel (16) and an air channel (17), wherein the right side of the left cavity (11) is connected with the left side of the hollow cavity (13), the gap plate (12) is installed on the left side of the left cavity (11), the right side of the hollow cavity (13) is connected with the left side of the liquid cavity (14), the liquid cavity (14) and the liquid connecting channel (15) are of an integrated structure, the outer surface of the liquid connecting channel (15) is embedded and installed on the evaporation channel (16), the evaporation channel (16) is located above the air channel (17), and the left side of the air channel (17) is connected with the right side of the hollow cavity (13); the box body (2) comprises an oil receiving pipe (201), an electric power meter (202), a contraction device (203), a cylinder body (204), a sleeve (205), a rod body (206), a return spring (207), a displacement plate (208), a plant removing device (209) and an electric connection plate (210), the bottom end of the oil receiving pipe (201) is connected with the top end of the cylinder body (204), the back surface of the electric power meter (202) is embedded and installed on the electric connection plate (210), the contraction device (203) is positioned at the right side of the cylinder body (204), the inner surface of the cylinder body (204) is attached to the outer surface of the displacement plate (208), the inner surface of the sleeve (205) is attached to the outer surface of the rod body (206), the inner surface of the return spring (207) is nested with the outer surface of the sleeve (205), the right side of the reset spring (207) is welded with the left side of the displacement plate (208), and the plant removing device (209) is arranged on the left side of the power connection plate (210).

2. The electrical box of claim 1, wherein: the shrinkage device (203) comprises a guide rail (2031), an upper seal ring (2032), a groove body (2033), an electric wire tube (2034), a solid plate (2035), a base plate (2036) and a bolt (2037), wherein the guide rail (2031) is positioned below the upper seal ring (2032), the outer surface of the guide rail (2031) is arranged on the groove body (2033), the electric wire tube (2034) is erected on the groove body (2033), the outer surface of the electric wire tube (2034) is bonded with the right surface of the solid plate (2035), the right surface of the electric wire tube (2034) is bonded with the outer surface of the base plate (2036), and the base plate (2036) is in threaded connection with the bolt (2037).

3. The electrical box of claim 1, wherein: clear away plant device (209) including lower pressure jar (2091), right knife board (2092), left knife board (2093), press down jar (2091) to be located right knife board (2092) top, right knife board (2092) left side is connected with left knife board (2093) right side, left knife board (2093) are located and are pressed down jar (2091) below.

4. The electrical box of claim 3, wherein: the lower pressure cylinder (2091) comprises a straight rod (20911), a cylinder outer shell (20912), a limiting bottom plate (20913), a built-in spring (20914) and a sealing plate (20915), wherein the outer surface of the straight rod (20911) is embedded in the cylinder outer shell (20912), the inner surface of the cylinder outer shell (20912) is attached to the outer surface of the sealing plate (20915), the limiting bottom plate (20913) is mounted at the bottom end of the cylinder outer shell (20912), the inner surface of the built-in spring (20914) is embedded in the outer surface of the straight rod (20911), and the bottom end of the built-in spring (20914) is welded to the top end of the limiting bottom plate (36.

5. An electric box for use on the ground of a forest according to claim 1 or 4, characterized in that: the bottom end of the oil receiving pipe (201) is connected with the bottom end of the cylinder outer shell (20912).

6. The electrical box for use on a forest floor according to claim 2, wherein: the upper seal ring (2032) comprises a manual pull ring (20321), an outer ring body (20322) and an inner ring body (20323), wherein the outer surface of the manual pull ring (20321) is embedded in the outer ring body (20322), and the inner surface of the outer ring body (20322) is bonded with the outer surface of the inner ring body (20323).

7. The electrical box of claim 3, wherein: the right knife plate (2092) comprises a pointed end (20921), a sawtooth head (20922), a tooth frame (20923), a soft pad (20924), a rubber ring (20925) and a mounting plate (20926), wherein the pointed end (20921) is welded on the mounting plate (20926), the back surface of the sawtooth head (20922) is welded on the tooth frame (20923), the outer surface of the tooth frame (20923) is embedded and mounted on the rubber ring (20925), the front surface of the soft pad (20924) is attached to the back surface of the rubber ring (20925), and the outer surface of the front surface of the soft pad (20924) is embedded and mounted on the mounting plate (20926).

8. The electrical box of claim 3, wherein: the right knife plate (2092) is arranged on the front surface of the displacement plate (208), and the left knife plate (2093) and the displacement plate (208) are not positioned on the same plane.