CN212026613U

CN212026613U - Steel structure net rack jacking device

Info

Publication number: CN212026613U
Application number: CN202020330002.8U
Authority: CN
Inventors: 华成
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-11-27
Anticipated expiration: 2030-03-16

Abstract

The utility model discloses a steel structure rack jacking device supports the pedestal upside and connects gradually one or more jacking bodies, connects support piece at the top jacking body upside. The concrete seat upside of supporting the pedestal is built and is equipped with the support chamber, and the jack-up mouth has been seted up at the obturator center, and the jack-up mouth inside is equipped with the jack. The support body and the upper side of the filling body are supported and connected with a base plate. The jacking frame is integrally formed between the connecting columns, the overall structure of the jacking frame is of a conical structure, and the bearing head of the jack extends into the jacking opening to support the jacking body. The jacking device for the steel structure net rack has a simple overall structure, can be jacked up conveniently through a jack, and is convenient to install and construct; the structure is integrally formed between the connecting column and the jacking frame, so that the supporting strength of the jacking device in the jacking process is ensured; one side of the frame body is provided with an opening, so that the interference between the jack and the connecting rod can be avoided; further reserve the climbing chamber between connecting rod and the jacking frame, make things convenient for constructor to construct along jacking device.

Description

Steel structure net rack jacking device

Technical Field

The utility model relates to a steel structure building special construction method uses jacking device structural design technical field, especially relates to a steel structure rack jacking device.

Background

At present, the building industry develops very rapidly, and buildings with large span spaces are formed in succession, and are not few regional landmark buildings. In the aspect of large-span space structures, the net rack and the net shell are most representative, the net rack is mainly used in buildings such as large stadiums, large exhibition centers, factory buildings and the like, the largest characteristic of the buildings is that the span is large, the middle part is generally provided with few or no supporting systems, so that the wide space can be provided to the maximum extent, the using units can be divided at any time according to the using requirements in the future, and the using change is flexible and has few obstacles. The steel structure net rack has the advantages of high strength, light weight, good earthquake resistance, high construction speed, attractive appearance and the like. And need use some jacking devices to go the steel structure rack top when installing the steel structure rack.

In the prior art, the structure is complex, and various installation methods cannot conveniently meet the requirement of site construction; particularly, the jacking structure is inconvenient and can be realized by a special tower crane, but the special tower crane cannot meet the flexible construction requirement; especially, jacking device is in the use, generally needs constructor to climb the construction of jacking device upside, and prior art's jacking device needs constructor to set up specially and scrambles the structure, and the construction is very inconvenient, not only incremental cost, can not guarantee to constructor's safety moreover.

Therefore, the jacking device in the prior art is complex in structure and inconvenient to construct, and particularly is inconvenient for workers to climb; the jacking structure uses the inconvenient defect of being under construction of tower crane.

SUMMERY OF THE UTILITY MODEL

In view of the above, the main object of the present invention is to provide a structure that is simple and can satisfy the safety of construction personnel; the integral strength is high, and the use safety is ensured; it is rational in infrastructure, the steel construction rack jacking device through the whole jacking body of jack structure jacking that can be convenient.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a steel structure net rack jacking device, includes: the supporting seat body, the jacking body and the supporting piece; one or more jacking bodies are connected in proper order to support pedestal upside, are topmost the support piece is connected to jacking body upside.

In a preferred embodiment, the support housing comprises: concrete seat, jack, backing plate and supporter.

Preferably, the concrete seat upside is built and is equipped with the support chamber, support chamber bottom is connected with the backup pad, it is equipped with the obturator to support intracavity portion, the obturator has been close to and has been seted up the support mouth at support chamber edge, support the inside support of mouth and connect the supporter, the jack-up mouth has been seted up at the obturator center, jack-up mouth inside is equipped with the jack.

Preferably, the surface of the supporting body is flush with the upper surface of the filling body, and the upper end of the supporting body is fixedly connected with or integrally formed with a first limiting protrusion.

Preferably, the support body and the upper side of the filling body are in supporting connection with a base plate, the edge of the base plate is provided with a first limiting groove adapted to the first limiting bulge, and the first limiting bulge extends into the first limiting groove; the center of the base plate is adapted to the jacking opening and is provided with a through hole, and the jack penetrates through the through hole.

In a preferred embodiment, the jacking body comprises: the lifting device comprises supporting columns, connecting columns, lifting frames and connecting rods; a connecting rod is connected between the adjacent support columns, and a connecting rod is connected between the adjacent connecting columns; the spliced pole is provided with at least three, and integrated into one piece has the jacking frame between all spliced poles.

Preferably, the jacking frame overall structure is a conical structure, a supporting bulge is convexly arranged at the center of the bottom end of the conical structure, a jacking opening is formed in the center of the supporting bulge, the size of the jacking opening is matched with that of the bearing head of the jack, and the bearing head of the jack extends into the jacking opening to support the jacking body.

Preferably, an upper threaded hole is formed in the center of the connecting column, a lower threaded hole is formed in the upper end of the center of the supporting column, and threaded rods are arranged in the upper threaded hole and the lower threaded hole to enable the connecting column and the supporting column to be connected together; the upper end of threaded rod integrated into one piece has the spacing arch of second, the lower tip of support column has seted up the spacing recess of second, the spacing bellied structure size of second with the spacing recess structure size of second suits.

Preferably, the upper side of the base plate is connected with the jacking body in a supporting manner, the upper surface of the base plate is fixedly connected with a third limiting protrusion, and the third limiting protrusion is adaptively connected with a second limiting groove structure of the supporting column.

In a preferred embodiment, each of the jacking bodies includes: the four support columns and the four connecting columns form a quadrangular prism structure frame body in an enclosing mode, and three sides of the frame body are connected with connecting rods; the four support columns are respectively connected to the lower ends of the four connecting columns; the connecting rods are respectively connected between the adjacent connecting columns and between the supporting columns; one side of the frame body is made into an open structure.

In a preferred embodiment, the jacking frame is of a structure like a Chinese character 'mi', the jacking frame comprises six jacking rods, and the lower ends of the six jacking rods are respectively and integrally formed with the supporting protrusions; one side of the connecting column is integrally formed with the end parts of the four jacking rods, and the connecting rod at the upper end of the connecting rods at the two sides of the frame body is fixedly connected with the end parts of the other two jacking rods; and a climbing cavity is reserved between the jacking rods on the other side opposite to the frame body opening structure.

In a preferred embodiment, the backing plates are arranged one by one or in an overlapping arrangement.

In a preferred embodiment, the upper end of the connecting column is connected with the lower end of the supporting column of the adjacent jacking body through a flange.

In a preferred embodiment, the flange plate is connected through three bolts, and the three bolts are respectively and uniformly arranged on one side of the connecting column away from the jacking frame.

In a preferred embodiment, the supporting member is a triangular cone structure, and the upper end of the supporting member is provided with a limiting groove.

In a preferred embodiment, the middle part of the supporting column is in a cavity structure.

In a preferred embodiment, auxiliary rib plates are arranged on two sides of the jack, a hoop is fixedly connected to the upper end of each auxiliary rib plate, the hoop is sleeved on the outer wall of the jack, and the lower end of each auxiliary rib plate is connected to the upper surface of the base plate in a supporting mode.

In a preferred embodiment, the first limiting protrusion and the second limiting protrusion are both of a hexagonal prism structure.

The utility model discloses a steel construction rack jacking device has following beneficial effect:

this steel structure rack jacking device supports the pedestal upside and connects gradually one or more jacking bodies, connects support piece at the top jacking body upside. The concrete seat upside of supporting the pedestal is built and is equipped with the support chamber, and the jack-up mouth has been seted up at the obturator center, and the jack-up mouth inside is equipped with the jack. The support body and the upper side of the filling body are supported and connected with a base plate. The jacking frame is integrally formed between the connecting columns, the overall structure of the jacking frame is of a conical structure, and the bearing head of the jack extends into the jacking opening to support the jacking body. The problems that in the prior art, the structure is complex, and various installation methods cannot conveniently meet the requirement of site construction are solved; particularly, the jacking structure is inconvenient and can be realized by a special tower crane, but the special tower crane cannot meet the flexible construction requirement; especially, jacking device is in the use, generally needs constructor to climb the construction of jacking device upside, and prior art's jacking device needs constructor to set up specially and scrambles the structure, and the construction is very inconvenient, not only incremental cost, can not guarantee to constructor's safety moreover. The jacking device for the steel structure net rack has a simple overall structure, can be jacked up conveniently through a jack, and is convenient to install and construct; the structure is integrally formed between the connecting column and the jacking frame, so that the supporting strength of the jacking device in the jacking process is ensured; one side of the frame body is provided with an opening, so that the interference between the jack and the connecting rod can be avoided; further reserve the climbing chamber between connecting rod and the jacking frame, make things convenient for constructor to construct along jacking device.

Drawings

Fig. 1 is a schematic structural view of a steel structure net rack jacking device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a support base of a steel structure net rack jacking device according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a jacking body of a steel structure net rack jacking device according to an embodiment of the present disclosure;

fig. 4 is a partial sectional view of a jacking body of a steel structural grid jacking device according to an embodiment of the present disclosure;

fig. 5 is a partial sectional view of a jacking body of a steel structural grid jacking device according to an embodiment of the present disclosure;

fig. 6 is a plan view of a jacking body of the steel structure net rack jacking device according to an embodiment of the present disclosure;

fig. 7 is a partial sectional view of a pad plate of a steel structural grid jacking device according to an embodiment of the present disclosure.

[ description of main reference symbols ]

1. The concrete bearing comprises a supporting base body, 11, a concrete seat, 12, a jack, 121, a bearing head, 13, a base plate, 14, a supporting body, 15, a supporting plate, 16, a filling body, 17, an auxiliary rib plate, 18 and a hoop;

01. the first limiting protrusion 02, the first limiting groove 03, the second limiting protrusion 04, the second limiting groove 05 and the third limiting protrusion;

2. the jacking body 21, the supporting columns 22 and the connecting columns;

23. the jacking frame 231, the supporting bulges 232, the jacking openings 233 and the jacking rods;

24. a connecting rod 25, a threaded rod 26, a flange plate 27 and a climbing cavity;

3. support piece, 31, spacing groove.

Detailed Description

The following will combine the drawings and the embodiments of the present invention to explain the jacking device of the steel structure net rack of the present invention in further detail.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the apparatus for jacking the net rack of the steel structure includes: the supporting seat body 1 is fixed with the ground and provides a base for the whole jacking device; the height is prolonged, and the jacking body 2 has a supporting effect on the building; a support 3 for the support of a building, in particular a building beam. Support 1 upside of pedestal and connect gradually one or more jacking bodies 2 (according to different altitude requirement, select the jacking body 2 of different numbers), connect support piece 3 at 2 upsides of the jacking body of the top, support the building through support piece 3.

In order to realize the supporting and jacking functions of the jacking body 2, the fixed supporting between the whole jacking device and the ground can be ensured. This support pedestal 1 includes: concrete seat 11, jack 12, backing plate 13 and support 14.

In order to guarantee the rationality of structure, especially guarantee whole jacking device's support intensity, avoid in long-term jacking use, support pedestal 1 damages. The concrete seat 11 is provided with a supporting cavity (the supporting cavity is reserved when concrete is poured) in an upper pouring mode. For a higher support of the support body 14 and the jack 12, a support plate 15 is connected to the bottom of the support cavity to prevent the support body 14 and the jack 12 from crushing the concrete seat 11. Certainly, in order to ensure the limiting effect on the supporting body 14 and the jack 12, the supporting cavity is internally provided with a filling body 16, the filling body 16 is provided with a supporting opening near the edge of the supporting cavity, the supporting opening is internally supported and connected with the supporting body 14, the center of the filling body 16 is provided with a jacking opening, and the jack 12 is arranged inside the jacking opening.

In order to limit and support the jacking body 2, the surface of the supporting body 14 is flush with the upper surface of the filling body 16, and a first limiting bulge 01 is fixedly connected or integrally formed at the upper end part of the supporting body 14. The upper sides of the support body 14 and the filling body 16 are supported and connected with a backing plate 13, the edge of the backing plate 13 is provided with a first limiting groove 02 adapting to the first limiting bulge 01, and the first limiting bulge 01 extends into the first limiting groove 02; a through hole is formed in the center of the backing plate 13 corresponding to the jacking opening, and the jack 12 penetrates through the through hole; the backing plate 13 can not only support the jacking body 2, but also limit and support the supporting body 14 and the jack 12.

As shown in fig. 1, 2, 3, 4, 5 and 6, the jacking body 2 includes: a support column 21 for supporting; a connecting column 22 which is connected with the jacking frame 23 to facilitate jacking operation; a jacking frame 23 which is matched with the jack 12 to jack the jacking body 2, and a connecting rod 24 which is used for assisting in connecting the connecting column 22 and the supporting column 21. A connecting rod 24 is connected between the adjacent supporting columns 21, and a connecting rod 24 is connected between the adjacent connecting columns 22; at least three connecting columns 24 of each jacking body 2 are arranged, and jacking frames 23 are integrally formed between the connecting columns 22, so that the connecting strength between the jacking frames 23 is ensured.

Further in order to ensure the supporting strength of the jacking frame 23, the supporting function for the jacking body 2 and the building is ensured. The overall structure of the jacking frame 23 is a conical structure, a supporting protrusion 231 is convexly arranged at the center of the bottom end of the conical structure, a jacking opening 232 is formed in the center of the supporting protrusion 231, the size of the jacking opening 232 is matched with the size of the bearing head 121 of the jack 12, and the bearing head of the jack 12 extends into the jacking opening 232 to support the jacking body 2. The jacking operation of each jacking body 2 is conveniently realized through the action of the jack 12.

In order to facilitate the connection between the connection column 22 and the support column 21, an upper threaded hole is formed in the center of the connection column 22, a lower threaded hole is formed in the upper end of the center of the support column 21, and a threaded rod 25 for connection is arranged inside the upper threaded hole and the lower threaded hole, so that the connection column 22 and the support column 21 are connected together. The upper end of threaded rod 25 has spacing arch 03 of second integrated into one piece, and the lower tip of support column 21 has seted up spacing recess 04 of second, the structural dimension of spacing arch 03 of second with spacing recess 04 structural dimension suits. Since most of the supporting function is between the supporting column 21 and the connecting column 22, and only in the jacking process, the supporting column 21 at the lowest end needs to be used for lifting the connecting column 21, the connection function can be realized by only adopting the threaded rod 25. And the second limit bulge 03 at the upper end of the threaded rod 25 can also ensure the connection and limit of the jacking body 2 at the upper side.

The jacking body 2 is connected to the upper side support of backing plate 13 (the lowermost end), and fixed surface is connected with the spacing arch 05 of third on backing plate 13, and the spacing arch 05 of third is connected with the spacing recess 04 structure adaptation of second of support column 21. Preferably, the third limiting protrusion 05 and the first limiting groove 02 are staggered in relative position, so that the strength of the backing plate 13 is ensured.

In a preferred embodiment, the strength of the whole jacking device can be ensured, a larger space can be met, and the operation of constructors is facilitated. Each jack body 2 includes: four support columns 21 and four connecting columns 22. The four connecting columns 22 form a frame body with a quadrangular structure in an overall structure, three sides of the frame body are connected with connecting rods 24, and one side of the frame body is not connected with the connecting rods 24; the four supporting columns 21 are respectively connected to the lower ends of the four connecting columns 22; the connecting rods 24 are respectively connected between the adjacent connecting columns 22 and between the supporting columns 21 (namely, the lower side positions of the connecting rods 24 connected between the connecting columns 22 are connected, and the connecting rods 24 are also connected between the supporting columns 21), so that one side of the frame body is in an open structure (the positions of the connecting columns 22 and the supporting columns 21 are both open, and a jack with a certain height can enter the center of the jacking body 2 to support the jacking body 2). Preferably, be connected with a connecting rod 24 between adjacent spliced pole 21, connect two connecting rods 24 between adjacent support column 22, make every jacking device set up one side of connecting rod 24, all connecting rods 24 equidistance sets up, especially as follows set up the climbing ladder at climbing chamber 27, make things convenient for constructor to climb the construction.

Preferably, in order to ensure the supporting strength of the jacking frame 23 to the maximum extent. The jacking frame 23 is of a'm' -shaped structure (compared with a plate-shaped structure, the material consumption is reduced, the supporting strength in the direction of each jacking rod 233 is not reduced, the self weight can be further reduced, and the safety of the jacking device is ensured). The lift-up frame 23 includes six lift-up rods 233, and the lower end portions of the six lift-up rods 233 are integrally formed with the support protrusions 231, respectively, to ensure the connection strength. One side of the connecting column 22 is integrally formed with the ends of the four lift pins 233. Of the connecting rods 24 on the two sides of each frame body, the connecting rod 24 at the uppermost end is fixedly connected with the end parts of the other two lifting rods 233 or integrally formed; make the opposite side that the framework open structure is relative, leave the climbing chamber 27 between the jacking pole 233, the connecting rod 24 of climbing chamber 27 one side can regard as the climbing ladder to use, makes things convenient for the constructor to use.

In order to ensure the supporting strength, the adjustment can be realized particularly on a certain height, and the requirement on the processing precision of the whole device is reduced. This backing plate 13 sets up one or overlap and set up a plurality ofly, through setting up the backing plate 13 of different quantity, satisfies the regulation of the 2 jacking height of jacking bodies.

In order to further secure the coupling strength between the adjacent jacking bodies 2. Between the adjacent jacking bodies 2, the upper end parts of the connecting columns 22 are fixedly connected with the lower end parts of the supporting columns 21 of the adjacent jacking bodies 2 through flange plates 26.

In order to avoid interference between the flange and the jacking frame 23, the flange 26 is connected by three bolts, and the three bolts are respectively and uniformly arranged on one side of the connecting column 22 far away from the jacking frame 23.

For more stable supporting effect on the cross beams of the building. The supporting member 3 is a triangular cone structure, and the upper end of the supporting member 3 is provided with a limiting groove 31.

In order to further reduce the dead weight of the whole jacking device, the middle part of the supporting column 21 is of a cavity structure.

In order to support the jack 12 more stably, auxiliary rib plates 17 are arranged on two sides of the jack 12, a hoop 18 is fixedly connected to the upper end of each auxiliary rib plate 17, the hoop 18 is sleeved on the outer wall of the jack 12, and the lower end of each auxiliary rib plate 17 is connected to the upper surface of the backing plate 13 in a supporting mode.

In order to conveniently twist the threaded rod, the threaded rod is conveniently connected with the upper threaded hole and the lower threaded hole, all grooves and protrusions can be connected in a unified standard mode in the whole jacking device, and the first limiting protrusion 01 and the second limiting protrusion 03 are of hexagonal prism structures.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. The utility model provides a steel construction rack jacking device which characterized in that includes: the supporting seat body (1), the jacking body (2) and the supporting piece (3); the upper side of the supporting seat body (1) is sequentially connected with one or more jacking bodies (2), and the upper side of the jacking body (2) at the uppermost end is connected with a supporting piece (3);

the support base (1) comprises: a concrete seat (11), a jack (12), a base plate (13) and a support body (14);

a supporting cavity is built on the upper side of the concrete seat (11), the bottom of the supporting cavity is connected with a supporting plate (15), a filler (16) is arranged in the supporting cavity, a supporting opening is formed in the filler (16) close to the edge of the supporting cavity, the supporting opening is internally connected with the supporting body (14) in a supporting mode, a jacking opening is formed in the center of the filler (16), and the jack (12) is arranged in the jacking opening;

the surface of the support body (14) is flush with the upper surface of the filling body (16), and a first limiting bulge (01) is fixedly connected or integrally formed at the upper end of the support body (14);

the upper sides of the support body (14) and the filling body (16) are connected with a base plate (13) in a supporting mode, the edge of the base plate (13) is provided with a first limiting groove (02) adapting to the first limiting protrusion (01), and the first limiting protrusion (01) extends into the first limiting groove (02); a through hole is formed in the center of the base plate (13) and is adapted to the jacking opening, and the jack (12) penetrates through the through hole;

the jacking body (2) comprises: a supporting column (21), a connecting column (22), a jacking frame (23) and a connecting rod (24); a connecting rod (24) is connected between the adjacent supporting columns (21), and a connecting rod (24) is connected between the adjacent connecting columns (22); the number of the connecting columns (22) is at least three, and jacking frames (23) are integrally formed among all the connecting columns (22);

the overall structure of the jacking frame (23) is a conical structure, a supporting bulge (231) is convexly arranged at the center of the bottom end of the conical structure, a jacking opening (232) is formed in the center of the supporting bulge (231), the size of the jacking opening (232) is matched with that of a bearing head part (121) of the jack (12), and the bearing head part of the jack (12) extends into the jacking opening (232) to prop up the jacking body;

an upper threaded hole is formed in the center of the connecting column (22), a lower threaded hole is formed in the upper end of the center of the supporting column (21), and threaded rods (25) are arranged in the upper threaded hole and the lower threaded hole to enable the connecting column (22) and the supporting column (21) to be connected together; a second limiting protrusion (03) is integrally formed at the upper end of the threaded rod (25), a second limiting groove (04) is formed at the lower end of the supporting column (21), and the structural size of the second limiting protrusion (03) is matched with that of the second limiting groove (04);

backing plate (13) upside supports and connects jacking body (2), fixed surface is connected with spacing arch of third (05) on backing plate (13), spacing arch of third (05) and the spacing recess of second (04) structural adaptation of support column (21) are connected.

2. The jacking device of a steel structural grid according to claim 1, wherein each jacking body (2) comprises: the four supporting columns (21) and the four connecting columns (22), the four connecting columns (22) form a quadrangular prism structure frame body in an enclosing mode, and three sides of the frame body are connected with connecting rods (24);

the four supporting columns (21) are respectively connected to the lower ends of the four connecting columns (22);

the connecting rods (24) are respectively connected between the adjacent connecting columns (22) and between the supporting columns (21), so that one side of the frame body is in an open structure.

3. The jacking device for the steel structure net rack according to claim 2, wherein the jacking frame (23) is of a structure like a Chinese character 'mi', the jacking frame (23) comprises six jacking rods (233), and the lower ends of the six jacking rods (233) are respectively and integrally formed with the supporting protrusions (231); one side of the connecting column (22) is integrally formed with the end parts of the four jacking rods (233), and the connecting rod (24) at the upper end of the connecting rods (24) at the two sides of the frame body is fixedly connected with the end parts of the other two jacking rods (233); and a climbing cavity (27) is reserved between the lifting rods (233) on the other side opposite to the frame body opening structure.

4. The jacking device for the steel structure net rack according to any one of claims 1 to 3, wherein the backing plates (13) are arranged one by one or in a plurality of overlapping arrangement.

5. The jacking device for the steel structure net rack according to any one of claims 1 to 3, wherein the upper end parts of the connecting columns (22) are connected with the lower end parts of the supporting columns (21) of the adjacent jacking bodies (2) through flanges (26) between the adjacent jacking bodies (2).

6. The jacking device for the steel structure net rack as claimed in claim 5, wherein the flange (26) is connected by three bolts, and the three bolts are respectively and uniformly arranged on one side of the connecting column far away from the jacking frame (23).

7. The jacking device for the steel structure net rack according to any one of claims 1 to 3, wherein the supporting member (3) is of a triangular conical structure, and a limiting groove (31) is formed in the upper end of the supporting member (3).

8. The jacking device for the steel structure net rack according to any one of claims 1 to 3, wherein the middle part of the supporting column (21) is of a cavity structure.

9. The jacking device for the steel structure net rack according to any one of claims 1 to 3, wherein auxiliary rib plates (17) are arranged on two sides of the jack (12), hoops (18) are fixedly connected to the upper ends of the auxiliary rib plates (17), the outer wall of the jack (12) is sleeved with the hoops (18), and the lower end portions of the auxiliary rib plates (17) are in supporting connection with the upper surface of the base plate (13).

10. The jacking device for the steel structure net rack according to any one of claims 1 to 3, wherein the first limiting protrusion (01) and the second limiting protrusion (03) are both of a hexagonal prism structure.