CN211655319U - Magnetic-isolation framework structure and switch cabinet with same - Google Patents

Abstract

The utility model provides a framework structure of magnetism that separates, it includes the supporting mechanism of two at least relative settings, and at least one crossbeam of setting between two relative supporting mechanism, the inboard side of two supporting mechanism is equipped with the support that is used for installing the crossbeam respectively, the both ends of crossbeam respectively with two leg joint, be equipped with on at least one support and separate the magnetic stripe, it is located between the tip of crossbeam and the inboard side of supporting mechanism to separate the magnetic stripe, the both ends of crossbeam are installed respectively on the surface of the inboard support of two supporting mechanism, and make the tip of crossbeam and the inboard side interval setting of supporting mechanism through the support on the surface separate the magnetic stripe, avoid the crossbeam to contact with the supporting mechanism at both ends, unbalanced current can not provide the magnetic path to the production of vortex when passing through.

Description

Magnetic-isolation framework structure and switch cabinet with same

Technical Field

The utility model relates to a low-voltage apparatus field especially relates to a framework structure of magnetic isolation and have this framework structure's cubical switchboard.

Background

The framework structure of the switch cabinet is made of magnetic conductive materials generally, and when unbalanced current in the power distribution cabinet passes through the closed annular framework structure, the framework structure can provide a magnetic path for the generation of eddy current. And in engineering practice, there are some asymmetric circumstances at the both ends of longeron, if the longeron is installed reversely when dismantling repeatedly, then can cause the influence to the switch board. In addition, an R angle exists on the outer side of the upright post of the framework, in the engineering practice, the R angle is easy to ignore in many cases, and when the protection level of IP40 is ensured, the outer R angle can only reach IP30 but cannot ensure IP40, so that the situation that the protection level fails exists, and the actual protection level of the power distribution cabinet cannot meet the requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a simple structure and can completely cut off the magnetic isolation's of magnetic circuit skeleton texture.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a framework structure of magnetism that separates, its includes the supporting mechanism of two at least relative settings to and at least one crossbeam of setting between two relative supporting mechanism, the inboard side of two supporting mechanism is equipped with the support that is used for installing the crossbeam respectively, the both ends of crossbeam respectively with two leg joint, be equipped with on at least one support and separate the magnetic stripe, separate the magnetic stripe and be located between the tip of crossbeam and the inboard side of supporting mechanism.

Preferably, the supporting mechanisms comprise vertical columns and G-shaped cross beams which are vertically arranged, the G-shaped cross beams are connected with the side faces of one sides of the vertical columns and located in the same vertical plane, the planes where the two supporting mechanisms are located are arranged in parallel, and the supports are connected with the vertical columns and/or the G-shaped cross beams.

Preferably, the cross section of the cross beam is U-shaped, two ends of the U-shaped cross beam are respectively sleeved on the two supports and connected with the supports, the two supports are respectively provided with a plurality of magnetic isolation rings which are sequentially connected end to form a ring, and the magnetic isolation rings on the two supports are respectively positioned between two ends of the cross beam and the inner side face of the supporting mechanism.

Preferably, the support is arranged at the joint of the G-shaped beam and the stand column, two ends of the support, which are close to the side face of the stand column, are respectively connected with the side face of the G-shaped beam and the side face of the stand column, and the magnetic isolation strips on the two supports are respectively positioned between two ends of the beam and the stand column and between two ends of the beam and the G-shaped beam.

Preferably, the top side of support is equipped with and separates the magnetic stripe, and separates the magnetic stripe and be equipped with the locating piece that extends to keeping away from stand one side in one side of self central line, be equipped with the constant head tank that corresponds with the locating piece on the crossbeam.

Preferably, the stand cross-section becomes the rectangle, is equipped with the R angle respectively at the junction of four sides of stand, be equipped with on the support with stand direction of height parallel arrangement separate the magnetic stripe, be equipped with the isolation sand grip that extends and correspond with the R angle to the stand R angle on separating the magnetic stripe and being close to the side of stand.

Preferably, the magnetic isolation strip is arranged on one side of the support close to the stand column, and the side face of the magnetic isolation strip close to the stand column is flush with the side face of the support for connecting the stand column.

Preferably, the vertex angle of the joint of two adjacent magnetism isolating strips forming the magnetism isolating ring is respectively provided with an avoiding surface, and the height of the avoiding surface is equal to or less than the outer R angle of the joint of two adjacent side surfaces of the cross beam; the support is of a cuboid structure, second avoiding surfaces are respectively arranged on the top edges of the joints of the two adjacent side surfaces on the support, and the height of each avoiding surface is smaller than or equal to the inner R angle of the joint of the two adjacent side surfaces of the cross beam.

Preferably, the support frame further comprises a bearing beam connected between the two upright columns, the height of the cross beam and the height of the supports corresponding to the two ends of the cross beam are higher than that of the bearing beam; the bracket is of a cuboid structure, four magnetic isolation strips respectively surround the four side surfaces of the bracket along the circumferential direction of the cross beam, the four magnetism isolating strips are sequentially connected end to form a square magnetism isolating ring, the top side of the bracket is provided with a first mounting hole matched with a first fastener, the first fastener is used for mounting the end part of the beam on the top side of the bracket, the side surface of one side of the bracket is connected with the upright post, and the side of the bracket is provided with two second mounting holes respectively matched with the second fasteners, the side surface of the other side opposite to the connection of the bracket and the upright post is provided with two counter bores respectively corresponding to the second mounting holes, and the bottoms of the counter bores are respectively communicated with the second mounting holes, the two counter bores are respectively positioned at two sides of the first mounting hole, one ends of the two second fasteners are respectively mounted in the two counter bores and are limited with the inner walls of the two counter bores, and the other ends of the two second fasteners respectively penetrate through the second mounting holes to be connected with the stand column and the G-shaped cross beam.

The utility model discloses a framework structure of magnetism that separates, the both ends of crossbeam are installed respectively at the inboard support of two supporting mechanism on the surface to through the support on the surface make the tip of crossbeam and the inboard side interval setting of supporting mechanism separate the magnetic stripe, avoid the supporting mechanism contact at crossbeam and both ends, unbalanced current can not provide the magnetic path to the production of vortex when passing through.

In addition, through set up the locating piece on separating the magnetism strip, when the crossbeam dress was contrary, the constant head tank on the crossbeam did not match with the locating piece, and the locating piece will be crossbeam jack-up to in the direction of reminding the user to change the crossbeam.

In addition, through the side that the magnetism isolating strip is close to the stand set up the isolation sand grip that extends to stand outside side, not only can prevent to lead to the problem that the protection level descends because the R angle is neglected on the stand, be equivalent to the size that has increaseed the magnetism isolating strip moreover, need not change current skeleton texture, it is very convenient.

The utility model also provides a switch cabinet, include the skeleton texture that separates the magnetism, when unbalanced current passes through skeleton texture, skeleton texture can not produce the magnetic circuit, can not cause the influence to the electrical apparatus of installing at switch cabinet.

Drawings

FIG. 1 is an assembly view of a cross beam according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a middle cross beam after the assembly of the embodiment of the present invention is completed;

fig. 3 is a partial enlarged view of fig. 1 according to the embodiment of the present invention;

fig. 4 is a partial enlarged view of the embodiment of fig. 2;

fig. 5 is a schematic structural view of one side of a bracket according to a first embodiment of the present invention;

fig. 6 is a schematic structural view of the other side of the bracket according to the first embodiment of the present invention;

FIG. 7 is a cross-sectional view of a bracket according to a first embodiment of the present invention;

fig. 8 is an assembly view of a cross beam in the second embodiment of the present invention;

fig. 9 is a schematic structural view of a cross beam in the second embodiment of the present invention after the assembly is completed;

fig. 10 is a partial enlarged view of fig. 9 according to the embodiment of the present invention;

fig. 11 is a schematic structural view of one side of a bracket according to a second embodiment of the present invention;

fig. 12 is a schematic structural view of the other side of the bracket according to the second embodiment of the present invention;

fig. 13 is a cross-sectional view of a bracket according to a second embodiment of the present invention;

fig. 14 is an assembly view of a cross beam in the third embodiment of the present invention;

fig. 15 is a schematic structural view of a cross beam in the third embodiment of the present invention after the assembly is completed;

fig. 16 is a partial enlarged view of the embodiment of the present invention shown in fig. 15;

fig. 17 is a schematic structural view of one side of a bracket according to a third embodiment of the present invention;

fig. 18 is a schematic structural view of the other side of the bracket according to the third embodiment of the present invention.

Detailed Description

The following description will further describe the specific embodiments of the magnetic shielding framework structure of the present invention with reference to the embodiments shown in fig. 1 to 18. The framework structure of the present invention is not limited to the description of the following embodiments.

As shown in fig. 1-18, the framework structure of magnetic isolation of the present invention includes at least two supporting mechanisms disposed oppositely, and at least one cross beam 300 disposed between the two supporting mechanisms, the inner side surfaces of the two supporting mechanisms are respectively provided with a bracket 200 for mounting the cross beam 300, the two ends of the cross beam 300 are respectively connected with the surfaces of the two brackets 200, at least one bracket 200 is provided with a magnetic isolation strip 210 on the surface, and the magnetic isolation strip 210 is located between the end of the cross beam 300 and the side surface of the supporting mechanism.

The utility model discloses a framework structure that separates magnetism, crossbeam 300's both ends are installed respectively at two inboard supports 200 of supporting mechanism on the surface to through support 200 on the surface separate magnetic stripe 210 make the tip of crossbeam 300 and the inboard side interval setting of supporting mechanism, avoid the supporting mechanism contact at crossbeam 300 and both ends, unbalanced current can not provide the magnetic circuit to the production of vortex when out of date.

Further, the supporting mechanism includes vertical column 100 and G-shaped beam 400 that set up perpendicularly, and G-shaped beam 400 is connected and is located same vertical plane with the side of vertical column 100 one side, and the plane parallel arrangement that two supporting mechanism belonged to, support 200 is connected with vertical column 100 and/or G-shaped beam 400. According to the actual work needs, supporting mechanism may not set up G type crossbeam 400, even supporting mechanism sets up G type crossbeam 400, and support 200 can install alone on stand 100, also can install alone at G type crossbeam 400, also can one end be connected with stand 100, and the other end is connected with crossbeam 400, all belongs to the utility model discloses a protection scope.

Example one

As shown in fig. 1-7, the framework structure of magnetic isolation in this embodiment includes two opposite columns 100, and a cross beam 300 and a load-bearing beam 500 disposed between the two opposite columns 100, the height of the cross beam 300 and the supports 200 respectively corresponding to the two ends of the cross beam 300 is higher than that of the load-bearing beam 500, the cross beam 300 is a structure with a U-shaped cross section formed by three sides, the inner sides of the two columns 100 are respectively provided with a support 200 for mounting the cross beam 300, the two ends of the U-shaped cross beam 300 are respectively sleeved on the two supports 200 and connected with the supports 200, the surfaces of the two supports 200 are respectively provided with magnetic isolation rings formed by sequentially connecting four magnetic isolation strips 210 end to end, the magnetic isolation rings on the two supports 200 are respectively located between the two ends of the cross beam 300 and the inner sides of the columns 100, in this embodiment, the two ends of the cross beam 300 are respectively spaced from the two columns 100 by the two, both ends of the cross beam 300 are not in contact with the shaft 100, so that the generation of eddy current can be prevented from providing a magnetic path when unbalanced current flows. Of course, the magnetic isolation strip 210 may be disposed on only one of the brackets 200, so as to ensure that one end of the beam 300 does not contact with the column 100, and all of the protection scope of the present invention is included. In addition, three sides of the U-shaped beam 300 in this embodiment are two side plates disposed oppositely and a bottom plate connected between two side plates, the end of the beam 300 is sleeved on one side of the bracket 200 far from the magnetic isolating ring and is limited by the magnetic isolating ring, so as to prevent the end of the beam 300 from contacting with the side of the column 100, and then the bottom plate is installed on the first installation hole 322 on the top side of the bracket 200 through a detachable first fastener 321, the first fastener 321 is preferably a screw, the beam 300 with a U-shaped structure has higher structural strength and can bear larger load. Of course, the cross member 300 may have other configurations, such as an L-shaped configuration with two sides, or a flat configuration, but at least one side may be connected to the bracket 200 by a removable fastener. In addition, the bracket 200 may also be provided with a plurality of first mounting holes 322, and a plurality of mounting holes 322 may be provided on the same side surface of the bracket 200 and connected to the bottom plate through a plurality of first fasteners 321, for example, the first mounting holes 322 in the drawings are eliminated, and two first mounting holes 322 are provided on two sides of the original first mounting holes 322; mounting holes 322 may be respectively formed on a plurality of lateral sides of the bracket 200, the bottom plate and the side plate are respectively connected to the bracket 200 by a plurality of first fastening members 321, the first mounting hole 322 is a third mounting hole 204 on the lateral side of the bracket 200, and the third mounting hole 204 is provided as described below with reference to the structure of the bracket 200.

Preferably, the vertex angles of the joints of two adjacent magnetic isolation strips 210 are respectively provided with an avoidance surface 211, and the height of the avoidance surface 211 is equal to or less than the outer R angle of the joint of two adjacent side surfaces of the cross beam 300. The avoiding surface 211 can be a fillet or an oblique angle, and the vertex angle of the joint of the magnetic separation strip 210 is lower than the outer R angle of the cross beam 300 through the avoiding surface 211, so that the magnetic separation strip has the characteristic of attractiveness and can prevent operators from being scratched. Of course, also can not set up dodge face 211, two adjacent apex angles that separate magnetic stripe 210 junction are a little higher than the outer R angle of crossbeam 300, all belong to the utility model discloses a protection scope.

As shown in fig. 5 to 6, the magnetism isolating ring is disposed on one side of the bracket 200 close to the column 100, and the side surfaces of the four magnetism isolating strips 210 forming the magnetism isolating ring close to the column 100 are respectively flush with the side surface of the bracket 200 for connecting the column 100. The contact area between the bracket 200 and the upright 100 can be increased, and the reliability and stability of connection between the bracket and the upright are ensured. It can be understood that the number of the magnetic isolation strips 210 is not limited to 4, and 3U-shaped magnetic isolation strips can be arranged to match the cross section of the beam 300, or 1-2 or more than 4 magnetic isolation strips are arranged, but at least one magnetic isolation strip 210 is required, and the magnetic isolation strip 210 needs to be ensured to be matched with at least one of three sides of the beam 300 for limiting, and the end of the beam 300 is ensured not to contact with the upright 100. Moreover, the four magnetic isolation strips 210 are close to the side surfaces of the upright 100, or not flush with the side surfaces of the bracket 200 for connecting the upright 100, for example, the four magnetic isolation strips 210 are arranged around the middle of the bracket 200, that is, the four magnetic isolation strips 210 are arranged at intervals between the side surfaces of the upright 100 and the side surfaces of the bracket 200 for connecting the upright 100, so that the distance between the cross beam 300 and the upright 100 can be further increased, and a better magnetic isolation effect is provided. In addition, a plurality of magnetic strips 210 that separate also can the interval setting, for example two separate magnetic strips 210 and set up in the lateral wall outside of two relative settings of support 200 relatively, on the basis of spacing crossbeam 300 tip, guarantee the atress balance of crossbeam 300 tip both sides.

As shown in fig. 3-4, the embodiment further includes a G-shaped beam 400 perpendicular to the column 100 and the beam 300, one end of the G-shaped beam 400 is connected to the side surface of the column 100, the bracket 200 is disposed at the connection position of the G-shaped beam 400 and the column 100, two ends of the bracket 200 close to the side surface of the column 100 are respectively connected to the side surface of the G-shaped beam 400 and the side surface of the column 100, and the magnetic isolation rings on the two brackets 200 are respectively located between two ends of the beam 300 and the column 100 and the G-shaped beam 400.

This embodiment is connected with G type crossbeam 400 and stand 100 respectively through the both ends with the support 200 side, because the bottom plate of crossbeam 300 is different with curb plate length, not only can be convenient for adjust U type crossbeam 300's orientation, makes crossbeam 300 can bear the side of bigger load and directly atress at the during operation, and support 200 can also play the effect of connecting G type crossbeam 400 and stand 100 moreover. It can be understood that even if the G-shaped cross beam 400 is provided, the bracket 200 may not be connected to the G-shaped cross beam 400, the bracket 200 may be rotated along the vertical plane to a position where the length direction is parallel to the upright 100, and it is ensured that the length of the bracket 200 in the horizontal direction at this time does not contact the G-shaped cross beam 400, but the bottom plate of the cross beam 300 faces the horizontal side after the installation, and it is difficult to ensure that the optimal load surface of the cross beam 300 is located at the position directly stressed. Alternatively, the length of the bracket 200 may be reduced instead of rotating the bracket 200, and the bracket 200 may be prevented from contacting the G-shaped beam 400, but the width of the bottom plate of the beam 300 may be reduced, which may affect the structural strength of the beam 300. In addition, the support 200 may not be installed on the column 100, the support 200 may also be installed only on the G-shaped cross beam 400, and when the support 200 is installed only on the G-shaped cross beam 400, the cross beam 300 is located between the two G-shaped cross beams 400, and is not directly above the bearing beam 500, which all belong to the protection scope of the present invention.

As shown in fig. 3 and 5-7, the bracket 200 is a rectangular structure, four magnetic isolation strips 210 respectively surround four sides of the bracket 200 along the circumference of the cross beam 300, and the four magnetic isolation strips 210 are sequentially connected end to form a square magnetic isolation ring, a first mounting hole 322 matched with a first fastener 321 is arranged on the top side of the bracket 200, the end of the cross beam 300 is mounted on the top side of the bracket 200 by the first fastener 321, the side of one side of the bracket 200 is connected with the upright post 100, two second mounting holes 202 respectively matched with second fasteners 201 are arranged on the side of the bracket 200, two counter bores 203 respectively corresponding to the second mounting holes 202 are arranged on the side of the other side of the bracket 200 connected with the upright post 100, the bottoms of the counter bores 203 are respectively communicated with the second mounting holes 202, the two counter bores 203 are respectively located on two sides of the first mounting hole 322, one ends of the two second fasteners 201 are respectively mounted in the two counter bores 203 and are limited by the inner walls of the two, the other ends of the two second fasteners 201 respectively penetrate through the second mounting holes 202 to be connected with the upright 100 and the G-shaped beam 400.

Further, the bracket 200 is provided with third mounting holes 204 corresponding to the side walls outside the two counter bores 203 respectively, the third mounting holes 204 are matched with third fasteners (not shown in the figure), the third mounting holes 204 have the same function as the first mounting holes 322, but the first mounting holes 322 are connected with the bottom plate of the cross beam 300 through the first fasteners 321, the third mounting holes 204 are connected with the side plates on one side or two sides of the cross beam 300 through the third fasteners, the two third mounting holes 204 are respectively arranged perpendicular to the two counter bores 203, and the bottoms of the two third mounting holes 204 are respectively communicated with the side faces of the two counter bores 203. The third mounting holes 204 may be reserved holes, and the third fasteners may be self-tapping screw-like connectors, which do not need to be pre-drilled in the cross beam 300 to ensure the strength of the cross beam 300, and then the third fasteners are mounted when the cross beam 300 needs to bear a large load. Of course, the third mounting hole 204 may not be provided, and all of them belong to the protection scope of the present invention. Preferably, the top edge of the joint of two adjacent side surfaces on the bracket 200 is respectively provided with a second avoiding surface 207, and the height of the avoiding surface 211 is less than or equal to the inner R angle of the joint of two adjacent side surfaces of the cross beam 300. The avoiding surface 206 may be a rounded corner or an oblique corner, and all belong to the protection scope of the present invention.

Example two

Referring to fig. 8-13, the second embodiment is substantially the same as the first embodiment in structure, except that in the engineering practice, the second embodiment can avoid the problem that the R angle of the pillar 100 is neglected, and ensure the protection level of IP 40.

Referring to fig. 10 to 13, the vertical column 100 is a section bar with a rectangular cross section, R corners are respectively disposed at the joints of four side surfaces of the vertical column 100, the bracket 200 is provided with a magnetic isolation strip 210 parallel to the height direction of the vertical column 100, and the side surface of the magnetic isolation strip 210 near the vertical column 100 is provided with an isolation convex strip 205 extending to the R corner of the vertical column 100 and corresponding to the R corner. When the stud 100 is connected to the G-beam 400, the ribs 205 engage with the R-corners at the connection of the sides of the stud 100 that are away from the G-beam 400 and the sides of the stud 100 that are close to the beam 300.

In this embodiment, the isolation convex strip 205 extending to the outer side of the column 100 is arranged on the side surface of the magnetic isolation strip 210 close to the column 100, so that the problem of reduction of protection grade caused by neglecting the R angle on the column 100 can be prevented, the size of the magnetic isolation strip 210 is increased, the existing skeleton structure does not need to be changed, and the magnetic isolation strip is very convenient. In addition, the problem of misloading in the direction of the bracket 200 can be prevented, and one side of the isolation convex strip 205 can be prevented from being connected with the G-shaped beam 400. Preferably, the isolation ribs 205 are provided with arc-shaped protection surfaces 206, and the protection surfaces 206 are connected with the side surfaces of the bracket 200 for connecting the upright 100.

EXAMPLE III

As shown in fig. 14 to 18, the third embodiment has substantially the same structure as the first embodiment, except that the third embodiment can distinguish the two directions of the cross beam 300, thereby preventing the direction of the cross beam 300 from being reversed when the cross beam 300 is installed.

Referring to fig. 16-18, the top side of the bracket 200 is provided with a magnetic isolation strip 210, a positioning block 213 extending to a side away from the upright 100 is provided on a side of the magnetic isolation strip 210 corresponding to the center line of the positioning block, and the cross beam 300 is provided with a positioning groove 214 corresponding to the positioning block 213. When the beam 300 is reversely installed, the positioning groove 214 on the beam 300 is not matched with the positioning block 213, the positioning block 213 jacks up the beam 300 so as to remind a user of the direction of replacing the beam 300, and after the direction corresponds, the positioning groove 214 can avoid the positioning block 213, so that the beam 300 is in surface contact with the support 200. The positioning block 213 is not disposed on the center line, so that the positioning groove 214 is prevented from being too close to the through hole of the cross beam 300 for connecting the first fastening member 321, thereby preventing interference or reducing the strength of the end of the cross beam 300. It is understood that the positioning blocks 213 may be disposed on the center line of the magnetic isolation strips 210, but the positioning blocks 213 on the brackets 200 at the two ends of the beam 300 may not be disposed symmetrically with respect to the center line of the beam 300, for example, the positioning blocks 213 may not be disposed in the middle of the magnetic isolation strips 210 at the two ends, the positioning blocks 213 may not be disposed at the other end, or the positioning blocks 213 at the other end may not be disposed on the center line. In addition, the positioning block 213 may be disposed on the magnetic isolation strip 210 on the side of the bracket 200, which all belong to the protection scope of the present invention.

The utility model also provides a switch cabinet, include the skeleton texture that separates the magnetism, when unbalanced current passes through skeleton texture, skeleton texture can not produce the magnetic circuit, can not cause the influence to the electrical apparatus of installing at switch cabinet.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (10)

1. A framework structure for magnetic isolation is characterized in that: the magnetic separation device comprises at least two oppositely arranged supporting mechanisms and at least one cross beam (300) arranged between the two oppositely arranged supporting mechanisms, wherein supports (200) used for mounting the cross beam (300) are respectively arranged on the inner side surfaces of the two supporting mechanisms, two ends of the cross beam (300) are respectively connected with the two supports (200), a magnetic separation strip (210) is arranged on at least one support (200), and the magnetic separation strip (210) is located between the end part of the cross beam (300) and the inner side surface of the supporting mechanism.

2. The magnetism isolating skeletal structure of claim 1, wherein: the supporting mechanism comprises a vertical column (100) and a G-shaped cross beam (400) which are vertically arranged, the G-shaped cross beam (400) is connected with the side face of one side of the vertical column (100) and is positioned in the same vertical plane, the planes where the two supporting mechanisms are arranged are parallel, and the support (200) is connected with the vertical column (100) and/or the G-shaped cross beam (400).

3. The magnetism isolating skeletal structure of claim 1, wherein: the cross section of the cross beam (300) is U-shaped, the two ends of the U-shaped cross beam (300) are respectively sleeved on the two supports (200) and connected with the supports (200), the two supports (200) are respectively provided with a plurality of magnetic isolating rings which are sequentially connected end to form a ring, and the magnetic isolating rings on the two supports (200) are respectively positioned between the two ends of the cross beam (300) and the inner side face of the supporting mechanism.

4. The magnetism isolating skeletal structure of claim 2, wherein: the support (200) is arranged at the joint of the G-shaped beam (400) and the upright post (100), the two ends of the support (200) close to the side of the upright post (100) are respectively connected with the side of the G-shaped beam (400) and the side of the upright post (100), and the magnetic separation strips (210) on the two supports (200) are respectively positioned between the two ends of the beam (300) and the upright post (100) and the G-shaped beam (400).

5. The magnetism isolating skeletal structure of claim 1, wherein: the top side of support (200) is equipped with and separates magnetic stripe (210), and separates magnetic stripe (210) and correspond one side at self central line and be equipped with locating piece (213) that extend to keeping away from stand (100) one side, be equipped with constant head tank (214) that correspond with locating piece (213) on crossbeam (300).

6. The magnetism isolating skeletal structure of claim 2, wherein: the cross-section of the upright post (100) is rectangular, R corners are respectively arranged at the connection positions of four side surfaces of the upright post (100), a magnetic separation strip (210) which is arranged in parallel with the height direction of the upright post (100) is arranged on the support (200), and a separation convex strip (205) which extends towards the R corners on the upright post (100) and corresponds to the R corners is arranged on the side surface of the magnetic separation strip (210) close to the upright post (100).

7. The magnetism isolating skeletal structure of claim 2, wherein: the magnetic isolation strip (210) is arranged on one side, close to the upright post (100), of the support (200), and the side face, close to the upright post (100), of the magnetic isolation strip (210) is flush with the side face, used for being connected with the upright post (100), of the support (200).

8. The magnetism isolating skeletal structure of claim 3, wherein: the vertex angle of the joint of two adjacent magnetic isolating strips (210) forming the magnetic isolating ring is respectively provided with an avoiding surface (211), and the height of the avoiding surface (211) is equal to or less than the outer R angle of the joint of two adjacent side surfaces of the cross beam (300); the support (200) is of a cuboid structure, the top edges of the joints of the two adjacent side surfaces on the support (200) are respectively provided with a second avoidance surface (207), and the height of the avoidance surface (211) is smaller than or equal to the inner R angle of the joint of the two adjacent side surfaces of the cross beam (300).

9. The magnetism isolating skeletal structure of claim 2, wherein: the vertical type combined type vertical column is characterized by further comprising a bearing beam (500) connected between the two vertical columns (100), wherein the heights of the cross beam (300) and the supports (200) respectively corresponding to the two ends of the cross beam (300) are higher than that of the bearing beam (500); the support (200) is of a cuboid structure, four magnetic isolation strips (210) are wound on four sides of the support (200) along the circumferential direction of a cross beam (300) respectively, the four magnetic isolation strips (210) are sequentially connected end to form a square magnetic isolation ring, a first mounting hole (322) matched with a first fastener (321) is arranged on the top side of the support (200), the end of the cross beam (300) is mounted on the top side of the support (200) through the first fastener (321), the side of one side of the support (200) is connected with an upright post (100), two second mounting holes (202) matched with second fasteners (201) are arranged on the side of the support (200), two counter bores (203) corresponding to the second mounting holes (202) are arranged on the side of the other side, which is connected with the upright post (100) relative to the support (200), and the bottoms of the counter bores (203) are communicated with the second mounting holes (202) respectively, the two counter bores (203) are respectively positioned at two sides of the first mounting hole (322), one ends of the two second fasteners (201) are respectively mounted in the two counter bores (203) and limited with the inner walls of the two counter bores (203), and the other ends of the two second fasteners (201) respectively penetrate through the second mounting holes (202) to be connected with the upright column (100) and the G-shaped cross beam (400).

10. A kind of switch cabinet, its characterized in that: comprising a magnetically isolating skeletal structure as claimed in any of claims 1 to 9.

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