CN217678647U - Temporary supporting device for steel structure - Google Patents
Temporary supporting device for steel structure Download PDFInfo
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- CN217678647U CN217678647U CN202221876345.XU CN202221876345U CN217678647U CN 217678647 U CN217678647 U CN 217678647U CN 202221876345 U CN202221876345 U CN 202221876345U CN 217678647 U CN217678647 U CN 217678647U
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Abstract
The utility model provides a steel construction strutting arrangement temporarily. The steel structure temporary supporting device comprises an inner sleeve assembly, an outer sleeve assembly and a lifting assembly; the inner sleeve assembly comprises an inner sleeve and a top plate fixed at the top of the inner sleeve, the outer sleeve assembly comprises an outer sleeve and a bottom plate fixed at the bottom of the outer sleeve, and positioning holes are formed in the inner sleeve and the outer sleeve; the inner sleeve is sleeved in the outer sleeve, and the inner sleeve and the outer sleeve are detachably connected through a positioning pin penetrating through the positioning hole. The lifting assembly comprises a rack, a gear and a driving device, the rack is fixedly arranged on the inner sleeve, the gear is fixedly arranged and is meshed with the rack, and the driving device is used for driving the gear to rotate so as to drive the inner sleeve to ascend or descend. Compared with the prior art, the utility model provides a temporary support device stability is good, is convenient for adjust the bearing height, has ensured temporary support device's stability and the unity and the accuracy of the descending height of falling the roof beam, has effectively improved steel case roof beam construction accuracy and security.
Description
Technical Field
The utility model relates to an engineering construction bridge steel construction technical field, in particular to interim strutting arrangement of steel construction.
Background
In the construction of steel structure (steel truss, steel box girder, etc.) bridges, temporary supports are adopted and placed under the bridge steel structure girder according to the preset line type of the bridge for temporary support.
At present, steel box girders are widely applied in the building design of bridges. The steel box girder construction has the advantages of high speed, light dead weight, better construction quality control and environmental protection. In the steel case roof beam installation, when hoist and mount steel case roof beam section, generally adopt the hoist and mount mode that lifting hook and wire rope cooperation were used to hoist steel case roof beam precast beam section on interim support, interim support adopts multiple spot single steel pipe to support, multiple spot simplex word steel to support etc. more.
However, in the above construction method, the steel box girder section is hoisted on a multi-point single steel pipe support or a multi-point single I-shaped steel support, and the stability and safety of the steel box girder section at the supporting point are poor. Meanwhile, the heights of the supporting points are easy to be inconsistent, and the top elevations of the temporary supporting points are not on the same horizontal plane, so that the splicing, the staggering and the overlarge gaps are easy to cause when the steel box girder is installed; the deformation and arching of the beam bottom are easily caused during welding; when pushing, the temporary pivot is easy to deviate and is not supported on the reinforcing rib, so that a beam bottom pit is formed; when the beam falls, the temporary support is cut manually, the influence of human factors is more, the support of each point is easy to cut and the height is inconsistent, and the potential quality hazard is caused to the engineering. The temporary supporting device of the bottom of the steel box girder needs to be improved.
SUMMERY OF THE UTILITY MODEL
Not enough to above-mentioned prior art, the utility model aims to provide an interim strutting arrangement of steel construction, its location is firm, the strong point altitude mixture control is convenient, has effectively solved the poor problem of steel construction installation poor stability and security.
The utility model provides a pair of interim strutting arrangement of steel construction, include:
the inner sleeve assembly comprises an inner sleeve and a top plate fixed at the top of the inner sleeve, and the inner sleeve is also provided with a positioning hole;
the outer sleeve assembly comprises an outer sleeve and a bottom plate fixed at the bottom of the outer sleeve, and the outer sleeve is also provided with a positioning hole; the lifting assembly comprises a rack, a gear and a driving device, the rack is fixedly arranged on the inner sleeve, the gear is fixedly arranged and is meshed with the rack, and the driving device is used for driving the gear to rotate so as to drive the inner sleeve to ascend or descend;
the inner sleeve is sleeved in the outer sleeve, and the inner sleeve and the outer sleeve are detachably connected through a positioning pin penetrating through the positioning hole.
The temporary supporting device for the steel structure is suitable for positioning and fixing the steel structure beam body and integrally falling the beam. The problem that the supporting point is not attached to the beam bottom is solved through the top plate at the top of the inner sleeve and the bottom plate at the bottom of the outer sleeve. The supporting height can be conveniently adjusted through the lifting assembly, the uniformity and the accuracy of the descending height of the beam are ensured, the stability of the stress of the steel structure beam body is ensured, the construction accuracy and the safety of the steel box beam are effectively improved, the labor cost and the use cost of hoisting machinery are saved, the cost caused by reworking is avoided, and the lifting device has a good use effect. The inner sleeve component and the outer sleeve component can be connected through the positioning holes and the positioning pins, and the structure is simple.
Preferably, a groove is formed in the outer sleeve, the gear is fixed to the outer wall of the outer sleeve, and the rack penetrates through the groove and then is meshed with the gear. The outer sleeve and the groove can limit the inner sleeve, and can limit the inner sleeve to move in the horizontal direction and rotate along the shaft, so that the strength of the device and the stability of the inner sleeve assembly are further improved.
Preferably, the outer sleeve assembly further comprises a reinforcing baffle fixed on the bottom plate, the reinforcing baffle is used for limiting the inner sleeve to move in the horizontal direction, a groove is formed in the reinforcing baffle, and the rack penetrates through the groove and then is meshed with the gear. Through setting up baffle and recess, further improved the intensity of device and the stability of inner skleeve subassembly.
Preferably, a reinforcing baffle is fixed on the bottom plate, the inner sleeve is arranged between the reinforcing baffle and the outer sleeve, and the reinforcing baffle and the outer sleeve are matched with each other to limit the movement of the inner sleeve in the horizontal direction.
Preferably, the bottom plate is fixed with two reinforcing baffle plates, the inner sleeve is arranged between the two reinforcing baffle plates, the two reinforcing baffle plates are mutually matched to limit the movement of the inner sleeve in the horizontal direction, one reinforcing baffle plate is provided with a groove, and the rack penetrates through the groove and then is meshed with the gear.
Preferably, the outer wall of the inner sleeve is provided with a graduated scale, the ascending or descending amount of the inner sleeve component in the adjusting process can be conveniently obtained through the graduated scale, and whether the top surface elevation of the temporary steel structure supporting device meets the design requirement or not can be conveniently determined.
Preferably, the driving device comprises a hand rocker, and one end of the hand rocker is connected with the gear.
The hand-operated lever is preferably designed into a Z shape, one end of the hand-operated lever is fixedly connected to the center of the gear or inserted into a non-circular shaft hole of the gear, and the other end of the hand-operated lever is shaken to drive the gear to rotate; or the hand-operated lever can also be designed into a straight line, one end of the hand-operated lever with the structure is fixedly connected to the position of the gear close to the edge, and the other end of the hand-operated lever is shaken to drive the gear to rotate.
Preferably, the driving device can also be a motor, an output shaft of the motor is connected to the central position of the gear, and the gear can be driven to rotate when the motor rotates.
Preferably, a plurality of stiffening plates are arranged between the outer sleeve and the bottom plate, and are uniformly distributed along the circumferential direction of the outer sleeve.
Preferably, the inner sleeve with locating hole on the outer sleeve all is provided with a plurality ofly, and a plurality of locating holes are along vertical direction interval arrangement, form through a plurality of locating pins that pass the locating hole between the inner sleeve with the outer sleeve and can dismantle the connection. Through a plurality of locating pins are fixed, can make to be connected more stably between inner sleeve and the outer sleeve.
Compared with the prior art, the utility model has the advantages of:
the problem of current steel construction temporary support stability and security poor, the easy inconsistent of support point height has been improved. The utility model discloses an interim strutting arrangement of steel construction has solved the problem that the strong point is not laminated with the breast through the bottom plate of roof, the outer sleeve bottom at inner skleeve top. The supporting height can be conveniently adjusted through the lifting assembly, the stability and elevation precision of the temporary steel structure support are greatly improved, and the safety and technical requirements of bridge steel box girder construction on steel box girder hoisting are met. The uniformity and the accuracy of the descending height of the falling beam are ensured, and the stress stability of the steel structure beam body is ensured. The construction accuracy and the construction safety of the steel box girder are effectively improved, labor cost and the use cost of hoisting machinery are saved, the cost caused by reworking is avoided, and the steel box girder construction method has a good use effect.
The utility model discloses be particularly useful for the location of the steel construction roof beam body, fix and wholly fall the roof beam. The steel structure temporary support device has the advantages that the inner sleeve assembly and the outer sleeve assembly can be connected through the positioning holes and the positioning pins, the structure is simple, the manufacturing is convenient, the lifting height of the lifting device can be conveniently adjusted when the steel structure temporary support top surface elevation is met, the uniformity and the accuracy of the falling height of the falling beam are ensured, and the stability of the stress of the steel structure beam body is ensured.
The above-mentioned technical characteristics can be combined in various suitable ways or replaced by equivalent technical characteristics as long as the purpose of the invention can be achieved.
Drawings
The invention will be described in more detail hereinafter on the basis of non-limiting examples only and with reference to the accompanying drawings. Wherein:
fig. 1 is a schematic structural view of a temporary supporting device for a steel structure according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a temporary supporting device for a steel structure according to another embodiment of the present invention;
fig. 3 is a schematic structural view of a temporary supporting device with a steel structure according to another embodiment of the present invention;
fig. 4 is a schematic structural view of the temporary supporting device for a steel structure according to another embodiment of the present invention after being lifted;
fig. 5 is a schematic structural diagram of an inner sleeve assembly provided by the present invention;
fig. 6 is a schematic structural diagram of the lifting assembly provided by the present invention.
Description of reference numerals:
1. a top plate; 2. an outer sleeve; 3. reinforcing the baffle plate; 4. an inner sleeve; 5. a stiffening plate; 6. a base plate; 7. positioning holes; 8. a graduated scale; 9. a groove; 10. a rack; 11. a gear base; 12. a gear; 13. a hand lever.
Detailed Description
For making the purpose, technical solution and advantages of the present invention clearer, it will be right below that the technical solution of the present invention is clearly and completely described, based on the specific embodiments of the present invention, all other embodiments obtained by the ordinary skilled person in the art without creative work belong to the scope protected by the present invention.
The use of the word "comprising" or "comprises" and the like in this disclosure means that the elements listed before the word encompass the elements listed after the word and do not exclude the possibility that other elements may also be encompassed. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the present disclosure, when a particular device is described as being located between a first device and a second device, intervening devices may or may not be present between the particular device and the first device or the second device. When a particular device is described as being coupled to another device, it can be directly coupled to the other device without intervening devices or can be directly coupled to the other device with intervening devices.
All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As shown in fig. 1 to 6, the temporary steel structure supporting device mainly includes an inner sleeve assembly, an outer sleeve assembly, and a lifting assembly. The inner sleeve subassembly is used for supporting the steel construction, and the inner sleeve subassembly includes inner sleeve 4 and fixes the roof 1 at inner sleeve 4 top, still is provided with locating hole 7 on the inner sleeve 4. The outer sleeve assembly is used for supporting the inner sleeve assembly, the outer sleeve assembly comprises an outer sleeve 2 and a bottom plate 6 fixed at the bottom of the outer sleeve 2, a positioning hole (not shown in the figure) is also formed in the outer sleeve 2, the inner sleeve 4 is sleeved in the outer sleeve 2, and the inner sleeve 4 is detachably connected with the outer sleeve 2 through a positioning pin (not shown in the figure) penetrating through the positioning hole. The lifting assembly is used for driving the inner sleeve assembly to ascend or descend and comprises a rack 10, a gear 12 and a driving device, the rack 10 is fixedly arranged on the inner sleeve 4, the gear 12 is fixedly arranged and meshed with the rack 10, the driving device is used for driving the gear 12 to rotate, and the gear 12 drives the inner sleeve 4 to ascend or descend when rotating, so that the supporting height of the steel structure temporary supporting device is adjusted.
The temporary steel structure supporting device is suitable for positioning and fixing the steel structure beam body and integrally falling the beam. The problem that the supporting point is not attached to the beam bottom is solved through the top plate 1 at the top of the inner sleeve 4 and the bottom plate 6 at the bottom of the outer sleeve 2. The supporting height can be conveniently adjusted through the lifting assembly, the uniformity and the accuracy of the descending height of the beam are ensured, the stability of the stress of the steel structure beam body is ensured, the construction accuracy and the safety of the steel box beam are effectively improved, the labor cost and the use cost of hoisting machinery are saved, the cost caused by reworking is avoided, and the lifting device has a good using effect. The inner sleeve assembly and the outer sleeve assembly can be connected through the positioning holes and the positioning pins, and the structure is simple.
In the interior cover section of thick bamboo subassembly, roof 1 is the steel board, and it leads to and sets up roof 1 and has increased the holding surface at inner skleeve 4's top through welded mode fixed connection, has solved the problem that the stay point is not laminated with the steel construction bottom, has guaranteed the stability of steel construction roof beam body atress. The positioning holes 7 formed in the side wall of the inner sleeve 4 are preferably a plurality of positioning holes arranged vertically.
In the outer barrel subassembly, bottom plate 6 is the steel board, and bottom plate 6 sets up bottom plate 6 and can increase the bottom sprag area through welded mode fixed connection in the bottom of outer sleeve 2, makes whole steel structure strutting arrangement more stable. The positioning holes arranged on the outer sleeve 2 are a plurality of positioning holes which are vertically arranged.
The inner sleeve 4 is sleeved in the outer sleeve 2, and the inner sleeve 4 can be detachably fixed in the outer sleeve 2 through one or more positioning pins simultaneously penetrating through the positioning holes 7 of the inner sleeve 4 and the positioning holes of the outer sleeve 2. Preferably, a pull ring is provided at one end of the positioning pin to facilitate the removal of the positioning pin.
In order to facilitate whether the top surface elevation of the temporary supporting device of the steel structure meets the design requirements for visual determination, a graduated scale 8 is preferably further arranged on the outer wall of the inner sleeve 4, and the graduated scale 8 extends in the vertical direction.
In order to ensure the stability of the connection between the outer sleeve 2 and the bottom plate 6 and improve the bearing performance of the outer sleeve assembly, a plurality of stiffening plates 5 are preferably arranged between the outer sleeve 2 and the bottom plate 6; further preferably, a plurality of stiffening plates 5 are evenly distributed along the circumference of the outer sleeve 2.
In one embodiment, as shown in fig. 1, in the lifting assembly, a gear 12 is mounted to an upper portion of an inner wall of the outer sleeve 2 through a gear base 11; the rack 10 is fixedly arranged on the outer wall of the inner sleeve 4 through a rack base (not shown in the figure), and the rack 10 is meshed with the gear 12 after passing through the groove 9 on the outer sleeve 2; the preferred hand rocker 13 that is of drive arrangement, the one end and the gear 12 of hand rocker 13 are connected, and the other end of hand rocker 13 is used for handheld, rotates hand rocker 13 and can drive gear 12 and rotate, drives inner skleeve 4 and rises or descend when gear 12 rotates to the support height of the interim strutting arrangement of adjustment steel construction. In the present embodiment, the movement of the inner sleeve 4 in the horizontal direction is restricted by the inner wall of the outer sleeve 2 and the gear 12.
In another embodiment, as shown in fig. 2, the outer sleeve 2 is further provided with a groove 9 extending along the vertical direction, and the groove 9 penetrates through the inner side and the outer side of the outer sleeve 2.
In the lifting assembly, a gear 12 is arranged on the upper part of the outer wall of the outer sleeve 2 through a gear base 11; the rack 10 is fixedly arranged on the outer wall of the inner sleeve 4 through a rack base (not shown in the figure), and the rack 10 is meshed with the gear 12 after passing through the groove 9 on the outer sleeve 2; the driving device is preferably a hand rocker 13, one end of the hand rocker 13 is connected with the gear 12, the other end of the hand rocker 13 is used for holding by hands, the gear 12 can be driven to rotate by rotating the hand rocker 13, and the inner sleeve 4 is driven to ascend or descend by the gear 12 when the gear 12 rotates, so that the supporting height of the steel structure temporary supporting device is adjusted. In the present embodiment, the movement of the inner sleeve 4 in the horizontal direction is restricted by the inner wall of the outer sleeve 2. The rack 10 passes through the groove 9, so that the groove 9 can play a role in guiding the inner sleeve 4 in the lifting process; meanwhile, when the inner sleeve 4 is cylindrical, the groove 9 can limit the rotation of the inner sleeve 4, and the rack 10 is prevented from being separated from the gear 12.
In a further embodiment, as shown in fig. 3 and 4, the outer sleeve assembly comprises two reinforcing baffles 3 which are oppositely arranged in addition to the outer sleeve 2 and the bottom plate 6. Two reinforcing baffle 3 set up the inboard of outer sleeve 2, and the bottom of two reinforcing baffle 3 all welds on bottom plate 6. The inner sleeve 4 is sleeved between the two reinforcing baffle plates 3, and the movement of the inner sleeve 4 in the horizontal direction can be limited through the two reinforcing baffle plates 3. Still set up the recess 9 that extends along vertical direction in one of two reinforcing baffle 3, recess 9 runs through the inside and outside both sides of reinforcing plate.
In the lifting assembly, the gear 12 is mounted on the upper part of the reinforcing baffle 3 through the gear base 11 (in other embodiments, the gear 12 can be mounted on the outer sleeve 2 or a separate mounting bracket is arranged on the bottom plate 6 to mount the gear 12); the rack 10 is fixedly arranged on the outer wall of the inner sleeve 4 through a rack base (not shown in the figure), and the rack 10 is meshed with the gear 12 after passing through the groove 9 on the reinforcing baffle 3; the preferred hand rocker 13 that is of drive arrangement, the one end and the gear 12 of hand rocker 13 are connected, and the other end of hand rocker 13 is used for handheld, rotates hand rocker 13 and can drive gear 12 and rotate, drives inner skleeve 4 and rises or descend when gear 12 rotates to the support height of the interim strutting arrangement of adjustment steel construction. The rack 10 passes through the groove 9, so that the groove 9 can play a role in guiding the inner sleeve 4 in the lifting process; meanwhile, when the inner sleeve 4 is cylindrical, the groove 9 can limit the rotation of the inner sleeve 4, and the rack 10 is prevented from being separated from the gear 12.
The utility model provides an interim strutting arrangement of steel construction can be applied to the location of the steel construction (steel truss, steel box girder etc.) roof beam body, fixed and whole roof beam that falls, supports temporarily to the steel construction.
Based on the utility model provides a interim strutting arrangement of steel construction, steel construction installation includes following step:
step 1: determining a point position of the steel structure temporary supporting device placed on the transverse large distribution beam and a top surface elevation of the steel structure temporary supporting device;
specifically, according to parameters such as coordinates, elevations, longitudinal slopes and vertical curves in a construction drawing, a total station is manually adopted to determine the point positions of the steel structure temporary supporting device placed on the large transverse distribution beam, and a leveling instrument is adopted to measure and set the top surface elevation of the steel structure temporary supporting device;
the large distribution beam is preferably made of double-spliced I-shaped steel, and the top surface of the transverse large distribution beam is ensured to be horizontal, free of staggered platform, free of bulge, free of welding beading and the like.
And 2, step: placing the steel structure temporary supporting device on a corresponding point position on the large distribution beam, adjusting the lifting of the inner sleeve assembly through the lifting assembly to enable the top surface to reach the height, inserting positioning pins into positioning holes of the outer sleeve 2 and the inner sleeve 4 to fix the inner sleeve assembly in place, and ensuring the horizontal position and the supporting height of the steel structure temporary supporting device;
and 3, step 3: hoisting the steel structure precast beam section on a set steel structure temporary supporting device according to a design curve (considering construction pre-camber), and then carrying out the working procedures of on-site assembly, welding, polishing, coating and the like;
and 4, step 4: after the working procedure is finished, the steel structure is constructed in a translation, dragging, pushing and the like;
and 5: after the steel structure reaches the designed position, the steel structure is dropped;
specifically, after the steel structure reaches the design position, the vertical screw jack and the temporary steel structure supporting device are matched to perform integral balanced beam falling of the steel structure, and the adjustment of the top surface height of the temporary steel structure supporting device is realized by operating a driving device (such as a rotating hand rocker 13) of the lifting mechanism.
And 6: and after the steel structure beam body falls to the beam, dismantling the temporary steel structure supporting device.
The steel structure temporary supporting device ensures the uniformity and accuracy of the falling height of the falling beam and ensures the stress stability of the steel structure beam body.
Finally, it should be noted that: the above embodiments and examples are only used to illustrate the technical solution of the present invention, but not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments and examples, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments or examples may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments or examples of the present invention.
Claims (10)
1. A steel structure temporary support device, comprising:
the inner sleeve assembly comprises an inner sleeve and a top plate fixed at the top of the inner sleeve, and the inner sleeve is also provided with a positioning hole;
the outer sleeve assembly comprises an outer sleeve and a bottom plate fixed at the bottom of the outer sleeve, and the outer sleeve is also provided with a positioning hole; and
the lifting assembly comprises a rack, a gear and a driving device, the rack is fixedly arranged on the inner sleeve, the gear is fixedly arranged and is meshed with the rack, and the driving device is used for driving the gear to rotate so as to drive the inner sleeve to ascend or descend;
the inner sleeve is sleeved in the outer sleeve, and the inner sleeve and the outer sleeve are detachably connected through a positioning pin penetrating through the positioning hole.
2. The temporary support device for the steel structure according to claim 1, wherein a groove is formed in the outer sleeve, the gear is fixed to the outer wall of the outer sleeve, and the rack penetrates through the groove and then is meshed with the gear.
3. The temporary support device for the steel structure as claimed in claim 1, wherein the outer sleeve assembly further comprises a reinforcing baffle fixed on the bottom plate, the reinforcing baffle is used for limiting the movement of the inner sleeve in the horizontal direction, a groove is formed on the reinforcing baffle, and the rack passes through the groove and then is meshed with the gear.
4. The temporary support device for steel structures as claimed in claim 3, wherein a reinforcing baffle is fixed on the bottom plate, the inner sleeve is disposed between the reinforcing baffle and the outer sleeve, and the reinforcing baffle and the outer sleeve cooperate to limit the movement of the inner sleeve in the horizontal direction.
5. The temporary supporting device with the steel structure as claimed in claim 3, wherein two reinforcing baffles are fixed on the bottom plate, the inner sleeve is arranged between the two reinforcing baffles, the two reinforcing baffles cooperate with each other to limit the movement of the inner sleeve in the horizontal direction, one of the reinforcing baffles is provided with a groove, and the rack passes through the groove and then is meshed with the gear.
6. The steel structural temporary support device according to any one of claims 1 to 5, wherein a scale is provided on an outer wall of the inner sleeve.
7. The temporary support device for steel structures as claimed in any one of claims 1 to 5, wherein the driving device comprises a hand-operated lever, one end of which is connected with the gear.
8. The temporary support device of steel structure as claimed in any one of claims 1-5, wherein said driving means is a motor, the output shaft of said motor being connected to said gear center position.
9. The temporary support device for steel structures of any one of claims 1 to 5, wherein a plurality of stiffening plates are arranged between the outer sleeve and the bottom plate, and are uniformly distributed along the circumference of the outer sleeve.
10. The temporary support device for the steel structure as claimed in any one of claims 1-4, wherein the positioning holes on the inner sleeve and the outer sleeve are provided in plural numbers, the plural positioning holes are arranged at intervals along the vertical direction, and the inner sleeve and the outer sleeve are detachably connected by plural positioning pins passing through the positioning holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876345.XU CN217678647U (en) | 2022-07-19 | 2022-07-19 | Temporary supporting device for steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876345.XU CN217678647U (en) | 2022-07-19 | 2022-07-19 | Temporary supporting device for steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217678647U true CN217678647U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221876345.XU Active CN217678647U (en) | 2022-07-19 | 2022-07-19 | Temporary supporting device for steel structure |
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| Country | Link |
|---|---|
| CN (1) | CN217678647U (en) |
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2022
- 2022-07-19 CN CN202221876345.XU patent/CN217678647U/en active Active
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