Basement back-jacking steel pipe structure

Abstract

The utility model relates to a basement back-jacking steel pipe structure which comprises a supporting steel column, a back-jacking supporting fixed steel column and a back-jacking supporting movable steel column. Wherein the supporting steel column is used for being vertically connected to a basement bottom plate; the back-jacking supporting and fixing steel column is detachably connected to the top of the supporting steel column, and a supporting plate horizontally extending outwards is fixedly arranged at the top end of the back-jacking supporting and fixing steel column. The lower end of the back-jacking supporting movable steel column is inserted into the upper end of the back-jacking supporting fixed steel column, and the top end of the back-jacking supporting movable steel column is used for supporting a basement top plate. A plurality of vertical wedge holes are formed in the side wall of the back-jacking supporting movable steel column, a plurality of transverse wedge holes are correspondingly formed in the supporting plate, first steel wedges are arranged between the upper ends of the vertical wedge holes and the supporting plate in an inserted mode, and second steel wedges are arranged between the outer ends of the transverse wedge holes and the corresponding first steel wedges in an inserted mode. When the basement back-jacking steel pipe structure is used for basement back-jacking operation, the length adjusting stroke is long, installation is convenient, and stress is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, and more specifically to a basement top-return steel pipe structure. Background Art

[0002] At present, the commonly used basement steel pipe top-up system is to use a jack to top up after the steel pipe is installed, or to place a steel plate at the gap and weld it into a whole, or to pour high-strength grouting material at the bottom gap to fill the gap. The above methods have a short height adjustable stroke, complex construction, long cycle, and obvious disadvantages. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a basement top return steel pipe structure, aiming to solve the problems existing in the prior art.

[0004] According to the utility model, a basement return top steel pipe structure is provided, which comprises: a supporting steel column, a return top support fixed steel column and a return top support movable steel column; wherein,

[0005] The supporting steel column is used to be vertically connected to the basement floor;

[0006] The return-to-top support fixing steel column is detachably connected to the top of the support steel column, and a support plate extending horizontally outward is fixed on the top of the return-to-top support fixing steel column;

[0007] The upper end of the fixed steel column for returning to the top is inserted into the lower end of the movable steel column for returning to the top, and the top end of the movable steel column for returning to the top is used to support the top plate of the basement;

[0008] A plurality of vertical wedge holes are provided on the side wall of the return top supporting movable steel column, a plurality of horizontal wedge holes are correspondingly provided on the support plate, a first steel wedge is inserted between the upper end of the vertical wedge hole and the support plate, and a second steel wedge is inserted between the outer end of the horizontal wedge hole and the corresponding first steel wedge.

[0009] Preferably, the supporting steel column, the return-top supporting fixed steel column and the return-top supporting movable steel column are all made of round steel pipes.

[0010] Preferably, the upper end of the supporting steel column and the lower end of the returning support and fixing steel column are respectively provided with connecting flanges, and a plurality of bolt holes are provided on the connecting flanges along their circumferences. The connecting flanges of the supporting steel column and the connecting flanges of the returning support and fixing steel column are fixedly connected by a plurality of bolt assemblies.

[0011] Preferably, an upper support plate is provided at the top of the return-to-top supporting movable steel column.

[0012] Preferably, a lower support plate is further provided on the return-to-top support movable steel column, and the lower support plate is located between the upper support plate and the vertical wedge hole.

[0013] Preferably, a plurality of first reinforcing ribs are provided between the upper support plate and the lower support plate, and the plurality of first reinforcing ribs are evenly distributed along the circumference of the return-to-top support movable steel column; a plurality of second reinforcing ribs are provided between the bottom surface of the lower support plate and the return-to-top support movable steel column, and the plurality of second reinforcing ribs are evenly distributed along the circumference of the return-to-top support movable steel column.

[0014] Preferably, the lower support plate is provided with two threading holes which are circumferentially spaced 180° apart.

[0015] Preferably, the support plate is provided with two lifting holes which are circumferentially spaced 180° apart.

[0016] Preferably, a plurality of third reinforcing ribs are provided between the bottom surface of the support plate and the return-to-top support and fixing steel column, and the plurality of third reinforcing ribs are evenly distributed along the circumference of the return-to-top support and fixing steel column.

[0017] Preferably, the width of the transverse wedge hole is greater than the width of the vertical wedge hole, and the thickness of the second steel wedge is greater than the thickness of the first steel wedge.

[0018] The utility model provides a basement top-return steel pipe structure, in which the lower end of the top-return support movable steel column is inserted into the upper end of the top-return support fixed steel column. After the top-return support movable steel column supports the basement top plate, it can be anchored by a first steel wedge arranged horizontally and a second steel wedge arranged vertically, so as to avoid the steel wedge sliding and causing the top-return support to be relaxed. The basement top-return steel pipe structure has the characteristics of long length adjustment stroke, convenient installation and stable force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings.

[0020] Figure 1 A structural schematic diagram of a basement top-return steel pipe structure according to an embodiment of the utility model is shown.

[0021] Figure 2 A reference schematic diagram of the use status of the basement top-return steel pipe structure according to an embodiment of the utility model is shown.

[0022] Figure 3 A schematic structural diagram of a movable steel column for supporting the top return in a basement top return steel pipe structure according to an embodiment of the utility model is shown.

[0023] Figure 4 for Figure 3Cross-sectional view at AA in the middle.

[0024] Figure 5 for Figure 3 Cross-sectional view at BB in the middle.

[0025] Figure 6 A schematic structural diagram of a top-return support fixing steel column in a basement top-return steel pipe structure according to an embodiment of the utility model is shown.

[0026] Figure 7 for Figure 6 Cross-sectional view at CC.

[0027] In the figure: 1. Support steel column; 2. Return top support fixed steel column; 21. Support plate; 211. Horizontal wedge hole; 212. Lifting hole; 22. Third reinforcing rib; 23. Connecting flange; 3. Return top support movable steel column; 301. Vertical wedge hole; 31. Upper support plate; 32. Lower support plate; 321. Threading hole; 33. First reinforcing rib; 34. Second reinforcing rib; 4. First steel wedge; 5. Second steel wedge; 6. Basement floor; 7. Basement roof. DETAILED DESCRIPTION

[0028] Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. In each of the accompanying drawings, the same elements are represented by the same or similar reference numerals. For the sake of clarity, the various parts in the accompanying drawings are not drawn to scale.

[0029] The utility model provides a basement top steel pipe structure, see Figures 1 to 7 The basement top-return steel pipe structure comprises a supporting steel column 1, a top-return supporting fixed steel column 2 and a top-return supporting movable steel column 3; wherein, the supporting steel column 1 is used to be vertically connected to the basement bottom plate 6; the top-return supporting fixed steel column 2 is detachably connected to the top of the supporting steel column 1, and the top of the top-return supporting fixed steel column 2 is fixedly provided with a supporting plate 21 extending horizontally outward; the lower end of the top-return supporting movable steel column 3 is inserted with the upper end of the top-return supporting fixed steel column 2, and the top of the top-return supporting movable steel column 3 is used to support the basement top plate 7; a plurality of vertical wedge holes 301 are opened on the side wall of the top-return supporting movable steel column 3, and a plurality of horizontal wedge holes 211 are correspondingly opened on the supporting plate 21, a first steel wedge 4 is inserted between the upper end of the vertical wedge hole 301 and the supporting plate 21, and a second steel wedge 5 is inserted between the outer end of the horizontal wedge hole 211 and the corresponding first steel wedge 4.

[0030] Specifically, the support steel column 1, the return top support fixed steel column 2 and the return top support movable steel column 3 are all made of circular steel pipes, wherein the support steel column 1 has the same outer diameter as the return top support fixed steel column 2, and the outer diameter of the return top support movable steel column 3 is smaller than the inner diameter of the return top support fixed steel column 2, so that the lower end of the return top support movable steel column 3 can be inserted into the upper end of the return top support fixed steel column 2 to adjust the length of the entire basement return top steel pipe structure. A bottom plate is welded and fixed to the bottom end of the support steel column 1, and the bottom plate at the bottom end of the support steel column 1 can be firmly connected to the basement floor 6 by expansion bolts. The upper end of the support steel column 1 and the lower end of the return support fixed steel column 2 are respectively provided with a connection flange 23, and a plurality of triangular reinforcing ribs are welded between the connection flange 23 on the support steel column 1 and the support steel column 1, and between the connection flange 23 on the return support fixed steel column 2 and the return support fixed steel column 2. The connection flange 23 is provided with a plurality of bolt holes along its circumference, and the connection flange 23 of the support steel column 1 and the connection flange 23 of the return support fixed steel column 2 are fixedly connected by a plurality of bolt assemblies. When the top of the return support movable steel column 3 supports the basement top plate 7, the middle of the vertical wedge hole 301 on the return support movable steel column 3 is flush with the top of the return support fixed steel column 2, that is, after the top of the return support movable steel column 3 abuts the basement top plate 7, a part of the vertical wedge hole 301 is located above the support plate 21, and a part is located below the support plate 21, so as to facilitate the upward tightening of the return support movable steel column 3 after the first steel wedge 4 is driven in horizontally. Then, the second steel wedge 5 is vertically driven into the transverse wedge hole 211 of the support plate 21, so that the second steel wedge 5 exerts a squeezing force on the first steel wedge 4 to prevent the first steel wedge 4 from sliding and causing the top supporting movable steel column 3 to relax under stress.

[0031] Furthermore, an upper support plate 31 is provided at the top of the return-to-top support movable steel column 3. Specifically, the upper support plate 31 is welded and fixed to the top of the return-to-top support movable steel column 3. By providing the upper support plate 31 at the top of the return-to-top support movable steel column 3, the contact area between the return-to-top support movable steel column 3 and the basement top plate 7 can be increased, so that the basement can provide better support force.

[0032] Furthermore, the re-top support movable steel column 3 is also provided with a lower support plate 32, and the lower support plate 32 is located between the upper support plate 31 and the vertical wedge hole 301. Specifically, the lower support plate 32 is welded and fixed on the re-top support movable steel column 3. By providing the lower support plate 32 on the re-top support movable steel column 3, before driving the first steel wedge 4 to anchor the re-top support movable steel column 3, a jack can be placed on the support plate 21 at the top of the re-top support fixed steel column 2, and the lower support plate 32 can be supported by the jack, so that the re-top support movable steel column 3 can be lifted and pressed against the basement ceiling 7 conveniently and labor-savingly. In this embodiment, in order to improve the supporting strength of the upper support plate 31 and the lower support on the return-to-top support movable steel column 3, a plurality of rectangular first reinforcing ribs 33 are provided between the upper support plate 31 and the lower support plate 32, and the plurality of first reinforcing ribs 33 are evenly distributed along the circumference of the return-to-top support movable steel column 3, and a plurality of triangular second reinforcing ribs 34 are provided between the bottom surface of the lower support plate 32 and the return-to-top support movable steel column 3, and the plurality of second reinforcing ribs 34 are evenly distributed along the circumference of the return-to-top support movable steel column 3.

[0033] Furthermore, the lower support plate 32 is provided with two threading holes 321 spaced 180° in the circumferential direction; and the support plate 21 is provided with two hoisting holes 212 spaced 180° in the circumferential direction. By providing the threading holes 321 on the lower support plate 32 and the hoisting holes 212 on the support plate 21, when connecting the return top support fixed steel column 2 with the support steel column 1, the lower end of the return top support movable steel column 3 can be inserted into the upper end of the return top support fixed steel column 2 to form a whole, and then the steel wire rope is passed through the hoisting holes 212 on the support plate 21 and the threading holes 321 on the lower support plate 32, and the return top support movable steel column 3 and the return top support fixed steel column 2 formed as a whole are hoisted by the hoisting equipment, so as to facilitate the connection of the lower end connecting flange 23 of the return top support fixed steel column 2 with the connecting flange 23 at the upper end of the support catch.

[0034] Furthermore, a plurality of third reinforcing ribs 22 are provided between the bottom surface of the support plate 21 and the return top support fixing steel column 2, and the plurality of third reinforcing ribs 22 are evenly distributed along the circumference of the return top support fixing steel column 2. By providing the third reinforcing ribs 22, the supporting strength of the support plate 21 on the return top support fixing steel column 2 is improved.

[0035] Further, the width of the transverse wedge hole 211 is greater than the width of the vertical wedge hole 301, and the thickness of the second steel wedge 5 is greater than the thickness of the first steel wedge 4. Figure 1 and Figure 2, the first steel wedge 4 and the second steel wedge 5 are both plate-like structures in the shape of a right-angled trapezoid. The thickness of the first steel wedge 4 matches the width of the vertical wedge hole 301, and the thickness of the second steel wedge 5 matches the width of the transverse steel wedge. When in use, the first steel wedge 4 is inserted into the vertical wedge hole 301 with its small end inside and its large end outside, the inclined surface of the first steel wedge 4 abuts against the upper end of the vertical wedge hole 301, the first steel wedge 4 is inserted into the transverse wedge hole 211 vertically with its small end at the bottom and its large end at the top, the plane of the first steel wedge 4 abuts against the support plate 21, the inclined surface of the second steel wedge 5 abuts against the outer end of the transverse wedge hole 211, and the plane of the second steel wedge 5 abuts against the large end of the first steel wedge 4. By making the thickness of the second steel wedge 5 greater than that of the first steel wedge 4, a better pre-tightening support force can be provided to the first steel wedge 4, and at the same time, the situation that the second steel wedge 5 cannot support the first steel wedge 4 due to the position error of the transverse wedge hole 211 can be avoided.

[0036] When the above-mentioned basement top-returning steel pipe structure is used for basement top-returning operation, the specific implementation steps are as follows: S1. According to the use requirements, a basement top-returning steel pipe structure of appropriate size is made. S2. The supporting steel column 1 is vertically installed at the designated position, and the bottom plate at the bottom end of the supporting steel column 1 is firmly connected to the basement bottom plate 6 through expansion bolts. S3. The lower end of the top-returning support movable steel column 3 is inserted into the upper end of the top-returning support fixed steel column 2 to form a whole, and the steel wire rope is passed through the threading hole 321 on the lower support plate 32 and the lifting hole 212 on the support plate 21. The top-returning support movable steel column 3 and the top-returning support fixed steel column 2 are lifted by a manual hoist fixed on the basement top plate 7, and then the connecting flange 23 at the lower end of the top-returning support movable steel column 3 and the connecting flange 23 at the upper end of the supporting steel column 1 are connected to form an integral structure by a bolt assembly. S4. Place the jack on the support plate 21, operate the jack so that the top of the telescopic rod of the jack is against the lower support plate 32, continue to lift the jack, and use the jack to lift the movable steel column 3 of the return top support, so that the upper support plate 31 at the top of the movable steel column 3 of the return top support is pressed tightly against the basement top plate 7. S5. Drive the first steel wedge 4 horizontally into the vertical wedge hole 301 of the movable steel column 3 of the return top support, so that the movable steel column 3 of the return top support is pressed tightly against the basement top plate 7; in order to prevent the first steel wedge 4 driven horizontally from moving outward after the top is stressed, resulting in the relaxation of the return top stress, then vertically drive the second steel wedge 5 into the horizontal wedge hole 211 of the support plate 21, so that the second steel wedge 5 limits the first steel wedge 4. S6. Remove the jack and complete the basement return top operation.

[0037] In summary, the basement return top steel pipe structure provided by the utility model has the lower end of the return top support movable steel column inserted into the upper end of the return top support fixed steel column. After the return top support movable steel column supports the lower top plate, it can be anchored by the first steel wedge arranged horizontally and the second steel wedge arranged vertically to prevent the steel wedge from sliding and causing the return top support to be relaxed. The basement return top steel pipe structure has the characteristics of long length adjustment stroke, convenient installation, and stable force.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0039] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A basement top-return steel pipe structure, characterized in that: include: Supporting steel columns, fixed steel columns for top support and movable steel columns for top support; among them, The supporting steel column is used to be vertically connected to the basement floor; The return-to-top support fixing steel column is detachably connected to the top of the support steel column, and a support plate extending horizontally outward is fixed on the top of the return-to-top support fixing steel column; The upper end of the fixed steel column for returning to the top is inserted into the lower end of the movable steel column for returning to the top, and the top end of the movable steel column for returning to the top is used to support the top plate of the basement; A plurality of vertical wedge holes are provided on the side wall of the return top supporting movable steel column, a plurality of horizontal wedge holes are correspondingly provided on the support plate, a first steel wedge is inserted between the upper end of the vertical wedge hole and the support plate, and a second steel wedge is inserted between the outer end of the horizontal wedge hole and the corresponding first steel wedge.

2. The basement top-return steel pipe structure according to claim 1 is characterized in that: The supporting steel column, the return top support fixed steel column and the return top support movable steel column are all made of round steel pipes.

3. The basement top-return steel pipe structure according to claim 1 is characterized in that: The upper end of the supporting steel column and the lower end of the returning support and fixing steel column are respectively provided with connecting flanges, and a plurality of bolt holes are provided on the connecting flanges along their circumferences. The connecting flanges of the supporting steel column and the connecting flanges of the returning support and fixing steel column are fixedly connected by a plurality of bolt assemblies.

4. The basement top-return steel pipe structure according to claim 1 is characterized in that: An upper supporting plate is arranged on the top of the movable steel column supporting the top return.

5. The basement top-return steel pipe structure according to claim 4 is characterized in that: A lower support plate is also provided on the top-returning support movable steel column, and the lower support plate is located between the upper support plate and the vertical wedge hole.

6. The basement top-return steel pipe structure according to claim 5 is characterized in that: A plurality of first reinforcing ribs are arranged between the upper support plate and the lower support plate, and the plurality of first reinforcing ribs are evenly distributed along the circumference of the return-to-top support movable steel column; a plurality of second reinforcing ribs are arranged between the bottom surface of the lower support plate and the return-to-top support movable steel column, and the plurality of second reinforcing ribs are evenly distributed along the circumference of the return-to-top support movable steel column.

7. The basement top-return steel pipe structure according to claim 5 is characterized in that: The lower support plate is provided with two threading holes which are circumferentially spaced 180 degrees apart.

8. The basement top-return steel pipe structure according to claim 7 is characterized in that: The support plate is provided with two hoisting holes which are 180° apart in the circumferential direction.

9. The basement top-return steel pipe structure according to claim 1, characterized in that: A plurality of third reinforcing ribs are provided between the bottom surface of the support plate and the return-to-top support fixing steel column, and the plurality of third reinforcing ribs are evenly distributed along the circumference of the return-to-top support fixing steel column.

10. The basement top-return steel pipe structure according to claim 1, characterized in that: The width of the transverse wedge hole is greater than the width of the vertical wedge hole, and the thickness of the second steel wedge is greater than the thickness of the first steel wedge.

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