Column top support tooling for prefabricated floor installation and installation method thereof

Abstract

The present invention is a column top support tooling for installing a prefabricated floor and an installation method thereof. The support tooling is installed on a column, and includes a leveling support, a leveling locking screw, a main beam corbel, a main locking screw, a secondary beam corbel and a locking bolt; the installation method includes the following steps: step 1, clamping the leveling support on the column; step 2, supporting the main beam corbel on the corresponding leveling support, and pressing the main beam corbel against the column; step 3, supporting the secondary beam corbel on the main supporting ribs on the corresponding sides respectively; step 4, supporting the main beam on the main beam corbel, and then supporting the secondary beam on the secondary beam corbel, and pouring concrete at the beam-column node; step 5, after moving the leveling support downward by 5-10 mm, clamping the leveling support on the column again; step 6, removing the locking bolt and the main locking screw, and then successively removing the secondary beam corbel and the main beam corbel. Step 7, removing the leveling support. The present invention has the characteristics of accurate positioning and convenient disassembly and assembly.

Description

Technical Field

[0001] The invention relates to the field of construction, in particular to a column top supporting tool for installing a prefabricated floor slab and an installation method thereof. Background Art

[0002] At present, when prefabricated floor slabs are installed, temporary supports need to be set at the beam-column joints to temporarily support the prefabricated main beams. The commonly used connection method is to embed bolts in the concrete column and then fix the steel corbels to the concrete columns through the embedded bolts. Since the column concrete needs to be vibrated during pouring, the embedded screws often shift, which makes the positioning of the steel corbels after direct installation unable to meet the requirements. In engineering practice, the steel corbels are either reprocessed according to the deviation of the bolts, or the fixing holes of the steel corbels are expanded. The above treatment measures increase the construction cost or reduce the safety of temporary supports. At the same time, the integral steel corbels currently used are heavy and difficult to install on site. Summary of the invention

[0003] The purpose of the present invention is to provide a column top supporting tool for installing a prefabricated floor and an installation method thereof, which has the characteristics of accurate positioning and convenient assembly and disassembly.

[0004] The present invention is realized by the following technical scheme: a column top support tooling for installing a prefabricated floor slab, characterized in that it is installed on a column and comprises a leveling support, a leveling locking screw, a main beam corbel, a main locking screw, a secondary beam corbel and a locking bolt;

[0005] The leveling support member includes two leveling clamping plates, which are respectively arranged on the front and rear sides of the column, and the left and right ends of the leveling clamping plates extend out of the left and right sides of the column to form a leveling plate extension portion, and the leveling plate extension portion is provided with a leveling through hole, and the leveling locking screw passes through the leveling through hole and is locked by a nut, so that the two leveling clamping plates are clamped on the column; a horizontally arranged leveling rib is provided on the top of the outer side surface of the leveling clamping plate;

[0006] The main beam corbel includes two main clamping plates, which are respectively arranged on the front and rear sides of the column, and the left and right ends of the main clamping plates extend out of the left and right sides of the column to form a main board extension; the main board extension is provided with a plurality of main through holes arranged vertically, and the main locking screw passes through the main through holes and is locked by a nut, so that the two main clamping plates are clamped on the column; wherein, the top and bottom of the outer side surfaces of the main clamping plates are provided with transversely arranged main supporting ribs; a plurality of crisscrossing main reinforcing ribs are also provided between the main supporting ribs and on the outer side surfaces of the main clamping plates; wherein, the main supporting ribs at the bottom are supported on the top surface of the leveling ribs, and the main supporting ribs at the top are used to support the main beam;

[0007] The secondary beam corbel includes two secondary clamping plates, which are respectively arranged on the left and right sides of the column, and the top of the outer side surface of the secondary clamping plate is provided with a transversely arranged secondary supporting rib; a number of criss-crossing secondary reinforcing ribs are also provided below the secondary supporting ribs and on the outer side surface of the secondary clamping plate, and the secondary supporting ribs are used to support the secondary beam; extension plates are provided on the front and rear sides of the secondary beam corbel; the extension plate of the secondary beam corbel is supported on the main supporting rib on the top of the main board extension part, and the extension plate and the main supporting rib are locked by locking bolts.

[0008] The method for using the column top support tooling for installing the prefabricated floor is characterized by comprising the following steps:

[0009] Step 1, installation of the leveling support, placing two leveling support on the front and rear sides of the column respectively, and locking the leveling support by means of the leveling locking screw passing through the leveling through hole after ensuring the horizontality of the leveling support, so that the leveling support is clamped on the column;

[0010] Step 2, installation of the main beam bracket, placing two main beam brackets on the front and rear sides of the column respectively, and the two main beam brackets are supported on the corresponding leveling support members respectively, and the main beam brackets are locked by the main locking screws passing through the main through holes, so that the main beam brackets are clamped on the column;

[0011] Step 3, installation of the secondary beam corbels, placing the two secondary beam corbels on the left and right sides of the column respectively, and the extension plates of the two secondary beam corbels are supported on the main support ribs on the corresponding sides, and the extension plates and the main support ribs are locked by locking bolts;

[0012] Step 4, pouring the beam-column joint, supporting the main beam on the main beam corbel, and then supporting the secondary beam on the secondary beam corbel, and finally pouring concrete at the beam-column joint;

[0013] Step 5: Initial dismantling, loosen the leveling locking screw appropriately, move the leveling support member down 5-10mm, and then tighten the leveling locking screw again to clamp the leveling support member on the column again;

[0014] Step 6, remove the main components, remove the locking bolts and the main locking screws. Since a gap is formed between the leveling support and the main beam corbel after the leveling support moves downward, the main beam corbel and the secondary beam corbel move downward slightly. First remove the secondary beam corbel. After the secondary beam corbel is removed, the main beam corbel has a tendency to overturn outward. However, during the overturning process, the main beam corbel will be limited by the leveling support and the main beam, so it cannot overturn. At this time, the main beam corbel is pulled out.

[0015] Step 7: Completely dismantle and remove the leveling locking screw to achieve removal of the leveling support.

[0016] Compared with the previous technology, the beneficial effects of the present invention are:

[0017] 1. All accessories of the present invention are installed on site without pre-embedding, and the position can be adjusted on site according to the needs, and there will be no positioning deviation beyond expectations;

[0018] 2. The split structure makes each component lighter, which is convenient for on-site installation and disassembly by manpower, thus reducing installation costs;

[0019] 3. The leveling support can be used as a temporary support for the subsequent component installation, significantly reducing the difficulty of installation; at the same time, the leveling support can be used as a safety reserve to improve the safety of the support system;

[0020] 4. Since the leveling support is light in weight, it is easy to control the precision. By using the leveling support as the installation reference, the installation precision of the main beam bracket and the secondary beam bracket with heavier weight can be controlled as a whole, with high installation efficiency and good effect.

[0021] 5. By combining the leveling support and the dismantling steps, the effect of dismantling one by one can be achieved, without worrying about the direct disintegration of the components after unlocking, which significantly reduces the number of personnel in the dismantling process;

[0022] 6. Through the combination of leveling support parts, main beam brackets and secondary beam brackets, a set of components can be adapted to different beam and column sizes, reducing the production cost of installation tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the unequal height beams provided by the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure of the leveling support member;

[0025] Figure 3 for Figure 1 Structural diagram of the main beam corbel;

[0026] Figure 4 for Figure 1 Structural diagram of the secondary beam corbel;

[0027] Figure 5 A schematic diagram of installing a leveling support member on a column;

[0028] Figure 6 For Figure 5 Schematic diagram of installing the main beam corbel to the column on the foundation;

[0029] Figure 7 For Figure 6 Schematic diagram of installing the secondary beam corbel to the column on the foundation;

[0030] Figure 8 For Figure 7Schematic diagram of installing the main beam and secondary beam on the foundation;

[0031] Fig. 9 for Figure 8 Schematic diagram of pouring the beam-column joint on the basis of;

[0032] Fig.10 for Fig. 9 Schematic diagram of the foundation after the leveling support is moved downward;

[0033] Fig.11 for Fig.10 Schematic diagram of removing the locking bolts and main locking screws from the foundation;

[0034] Fig.12 for Fig.11 Schematic diagram of removing the secondary beam corbel from the foundation;

[0035] Fig.13 for Fig.12 Schematic diagram of removing the main beam corbel from the foundation;

[0036] Fig.14 for Fig.13 Schematic diagram of removing the leveling support members from the foundation;

[0037] Fig.15 This is a schematic diagram of the structure of the equal-height beam of the present invention;

[0038] Fig.16 for Fig.15 Structural diagram of the middle secondary beam corbel;

[0039] Fig.17 for Fig.15 Schematic diagram of the structure installed on the column;

[0040] Fig.18 for Fig.17 Schematic diagram of the structure after the foundation is locked;

[0041] Fig.19 for Fig.15 A schematic diagram of the structure after the locking nut is removed from the structure;

[0042] Fig. 20 For Fig.19 Schematic diagram of the structure of removing the main locking screw from the foundation;

[0043] Fig.21 For Fig. 20 Structural diagram of removing the secondary beam corbel from the foundation.

[0044] Explanation of reference numerals: 1 leveling supporting member, 11 leveling clamping plate, 12 leveling plate extension, 13 leveling through hole, 14 leveling rib, 2 leveling locking screw, 3 main beam corbel, 31 main clamping plate, 32 main board extension, 33 main through hole, 34 main supporting rib, 341 second locking screw hole, 35 main reinforcing rib, 4 main locking screw, 5 secondary beam corbel, 51 secondary clamping plate, 52 secondary supporting rib, 53 secondary reinforcing rib, 54 extension plate, 55 first locking screw hole, 56 through hole, 6 locking bolt, 7 column, 8 main beam, 9 secondary beam. DETAILED DESCRIPTION

[0045] The present invention is described in detail below in conjunction with the accompanying drawings:

[0046] like Figure 1-9 , 15, 16: a column top support tooling for installing a prefabricated floor, installed on a column 7, comprising a leveling support member 1, a leveling locking screw 2, a main beam corbel 3, a main locking screw 4, a secondary beam corbel 5 and a locking bolt 6;

[0047] The leveling support member 1 comprises two leveling clamping plates 11, which are respectively arranged at the front and rear sides of the column 7, and the left and right ends of the leveling clamping plates 11 respectively extend out of the left and right sides of the column 7 to form a leveling plate extension portion 12, and the leveling plate extension portion 12 is provided with a leveling through hole 13, and the leveling locking screw 2 passes through the leveling through hole 13 and is locked by a nut, so that the two leveling clamping plates 11 are clamped on the column 7; a horizontally arranged leveling rib plate 14 is provided on the top of the outer side surface of the leveling clamping plate 11;

[0048] The main beam bracket 3 includes two main clamping plates 31, which are respectively arranged on the front and rear sides of the column 7, and the left and right ends of the main clamping plates 31 extend out of the left and right sides of the column 7 to form a main board extension part 32; the main board extension part 32 is provided with a plurality of main through holes 33 arranged vertically, and the main locking screw 4 passes through the main through holes 33 and is locked by a nut, so that the two main clamping plates 31 are clamped on the column 7; wherein, the top and bottom of the outer side surface of the main clamping plate 31 are provided with transversely arranged main supporting ribs 34; a plurality of crisscrossing main reinforcing ribs 35 are also provided between the main supporting ribs 34 and on the outer side surface of the main clamping plate 31; wherein, the bottom main supporting ribs 34 are supported on the top surface of the leveling ribs 14, and the top main supporting ribs 34 are used to support the main beam 8;

[0049] The secondary beam corbel 5 includes two secondary clamping plates 51, which are respectively arranged on the left and right sides of the column 7. The top of the outer side surface of the secondary clamping plate 51 is provided with a transversely arranged secondary supporting rib 52; a plurality of criss-crossing secondary reinforcing ribs 53 are also provided below the secondary supporting rib 52 and on the outer side surface of the secondary clamping plate 51, and the secondary supporting rib 52 is used to support the secondary beam 9; extension plates 54 are provided on the front and rear sides of the secondary beam corbel 5; the extension plate 54 of the secondary beam corbel 5 is supported on the main supporting rib 34 at the top of the main board extension part 32, and the extension plate 54 and the main supporting rib 34 are locked by locking bolts 6.

[0050] Here, the leveling support member 1 is mainly used to ensure the horizontality during the installation process of the present invention; generally speaking, the leveling support member 1 has a light weight, which is convenient for precision control. The leveling support member is clamped on the column by the leveling locking screw, and the friction between the leveling support member and the column prevents the leveling support member from sliding down; and then using the leveling support member as the installation reference, the main beam corbel and secondary beam corbel with heavier weight can be installed in sequence, so that the overall installation precision can be controlled, the installation efficiency is high, and the effect is good.

[0051] The main beam corbel is supported on the leveling support 1, and the main beam corbel is locked by the main locking screw 4, so that the two main beam corbels are clamped on the column. Since the main beam corbel has a large contact area with the column, a large friction force can be generated, and the friction force between the leveling support 1 and the column can enable the main beam corbel to support the main beam. Correspondingly, the secondary beam corbel installed on the main beam corbel can also support the secondary beam.

[0052] According to the different structures of the secondary beam corbel 5, the present invention derives the following two embodiments to be respectively adapted to beams of different heights and beams of equal heights; Example 1

[0053] like Figure 1-4 As shown: the secondary beam corbel 5 is a secondary beam corbel 5 for unequal height beams; the extension plate 54 is located at the bottom of the secondary reinforcing rib 53 vertically arranged in front and behind the secondary beam corbel 5, so that when the extension plate 54 is erected on the main supporting rib 34, the horizontal height of the secondary supporting rib 52 is higher than the horizontal height of the main supporting rib 34. Example 2

[0054] like Figure 2 , 3 As shown in 15 and 16: the secondary beam corbel 5 is a secondary beam corbel 5 for equal height beams, and the extension plate 54 is connected to the upper surface of the front and rear ends of the secondary supporting ribs 52, so that when the extension plate 54 is laid on the main supporting ribs 34, the horizontal height of the secondary supporting ribs 52 is the same as the horizontal height of the main supporting ribs 34; a through hole 56 for accommodating the main locking screw 4 to pass through is opened on the secondary reinforcing rib 53.

[0055] Since there is geometric interference in space between the secondary beam corbel 5 for equal-height beams and part of the main locking screw 4 between the two main beam corbels 3 , it is necessary to open a through hole 56 on the secondary reinforcing rib 53 of the secondary beam corbel 5 .

[0056] In order to facilitate the connection between the secondary beam corbel 5 and the main beam corbel 3, a first locking screw hole 55 is provided on the extension plate 54, and a second locking screw hole 341 is provided on the main supporting rib plate 34. The locking bolt 6 passes through the first locking screw hole 55 and the second locking screw hole 341 to achieve locking.

[0057] like Figure 5-14 As shown: The method of using the column top support tooling for prefabricated floor installation includes the following steps:

[0058] Step 1, installation of the leveling support 1, placing two leveling support members 1 on the front and rear sides of the column 7 respectively, and locking the leveling support members by passing through the leveling through hole 13 after ensuring the horizontality of the leveling support members, so that the leveling support members 1 are clamped on the column 7 as shown in FIG. Figure 5 As shown; here, the leveling support member 1 plays a role in leveling, and also plays a role in supporting the main beam corbel. In addition, it also plays a role in auxiliary support of the main beam and the secondary beam.

[0059] Step 2, installation of the main beam bracket 3, placing the two main beam brackets 3 on the front and rear sides of the column 7 respectively, and the two main beam brackets 3 are supported on the corresponding leveling support members 1 respectively, and the main beam brackets 3 are locked by the main locking screws 4 passing through the main through holes 33, so that the main beam brackets 3 are clamped on the column 7 as shown in FIG. Figure 6 As shown; generally, the contact area between the main beam bracket 3 and the column is large, which can ensure that after clamping the column, the friction between the column and the column is sufficient to support the main beam and the secondary beam.

[0060] Step 3, installation of the secondary beam corbels 5, placing the two secondary beam corbels 5 on the left and right sides of the column 7 respectively, and the extension plates 54 of the two secondary beam corbels 5 are supported on the main support ribs 34 on the corresponding sides, and the extension plates 54 and the main support ribs 34 are locked by locking bolts 6. Figure 7 As shown; here the secondary beam corbel is supported on the main beam corbel, and after being locked, it can be used to support the secondary beam.

[0061] It should also be noted that if Fig.17 , 18 As shown, if a secondary beam corbel of an equal-height beam is required, the main locking screw 4 here can be partially locked first, and then the remaining main locking screw 4 can be locked after the secondary beam corbel is installed in place.

[0062] Step 4, pouring the beam-column joint, supporting the main beam 8 on the main beam corbel 3, and then supporting the secondary beam 9 on the secondary beam corbel 5, and finally pouring concrete at the beam-column joint, such as Figure 8 ,9 As shown;

[0063] Step 5: Initial dismantling, loosen the leveling locking screw 2 appropriately, move the leveling support 1 down 5-10 mm, and then tighten the leveling locking screw 2 again so that the leveling support 1 is clamped on the column 7 again. Fig.10 As shown;

[0064] Step 6: Remove the main components, remove the locking bolt 6 and the main locking screw 4. Since a gap is formed between the leveling support 1 and the main beam bracket 3 after the leveling support 1 moves downward, the main beam bracket 3 and the secondary beam bracket 5 move downward slightly. Figure 11-13 As shown in 19-21; first remove the secondary beam corbel 5. After the secondary beam corbel 5 is removed, the main beam corbel 3 has a tendency to overturn outward, but during the overturning process, the main beam corbel will be limited by the leveling support member 1 and the main beam 8, resulting in failure to overturn. At this time, the main beam corbel 3 is pulled out;

[0065] The biggest feature of the present invention is that after the locking of the main beam corbel and the secondary beam corbel is released, since the main beam corbel is in the shape of a cube, even if the main beam corbel has a tendency to tip outward, it will be stuck between the main beam and the leveling support 1. Therefore, after the removal of the locking bolt 6 and the main locking screw 4, the main beam corbel will still be supported on the leveling support 1, and there is no need to worry about the direct disintegration of the various components after the locking is released, which can significantly reduce the number of personnel in the dismantling process; afterwards, the workers can orderly dismantle the secondary beam corbel and the main beam corbel. Since the main beam corbel and the secondary beam corbel are heavy, especially the main beam corbel may weigh several hundred kilograms, this dismantling method that avoids instant disintegration can ensure that the workers can dismantle in an orderly manner, and indirectly ensure the safety of the workers in the process of dismantling the components.

[0066] Step 7: Completely dismantle and remove the leveling locking screw 2 to achieve the removal of the leveling support 1. Fig.14 shown.

[0067] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The column top support tooling for prefabricated floor installation is characterized by: Installed on a column (7), comprising a leveling support (1), a leveling locking screw (2), a main beam bracket (3), a main locking screw (4), a secondary beam bracket (5) and a locking bolt (6); The leveling support member (1) comprises two leveling clamping plates (11), the two leveling clamping plates (11) are respectively arranged on the front side and the rear side of the column (7), and the left and right ends of the leveling clamping plates (11) respectively extend out of the left and right sides of the column (7) to form a leveling plate extension part (12), the leveling plate extension part (12) is provided with a leveling through hole (13), the leveling locking screw (2) passes through the leveling through hole (13) and is locked by a nut, so that the two leveling clamping plates (11) are clamped on the column (7); a horizontally arranged leveling rib plate (14) is provided on the top of the outer side surface of the leveling clamping plate (11); The main beam bracket (3) comprises two main clamping plates (31), which are respectively arranged on the front and rear sides of the column (7), and the left and right ends of the main clamping plates (31) respectively extend out of the left and right sides of the column (7) to form a main board extension part (32); the main board extension part (32) is provided with a plurality of main through holes (33) arranged vertically, and the main locking screw (4) passes through the main through holes (33) and is locked by a nut, so that the two main clamping plates (31) are clamped on the column (7); wherein, transversely arranged main support ribs (34) are provided at the top and bottom of the outer side surfaces of the main clamping plates (31); and a plurality of crisscrossing main reinforcing ribs (35) are also provided between the main support ribs (34) and on the outer side surfaces of the main clamping plates (31); wherein the main support ribs (34) at the bottom are supported on the top surface of the leveling ribs (14), and the main support ribs (34) at the top are used to support the main beam (8); The secondary beam corbel (5) comprises two secondary clamping plates (51), which are respectively arranged on the left and right sides of the column (7); a transversely arranged secondary support rib (52) is provided on the top of the outer side surface of the secondary clamping plate (51); a plurality of crisscrossing secondary reinforcing ribs (53) are further provided below the secondary support rib (52) and on the outer side surface of the secondary clamping plate (51); the secondary support rib (52) is used to support the secondary beam (9); an extension plate (54) is provided on the front and rear sides of the secondary beam corbel (5); the extension plate (54) of the secondary beam corbel (5) is supported on the main support rib (34) at the top of the main board extension portion (32), and the extension plate (54) and the main support rib (34) are locked by a locking bolt (6).

2. The column top support tooling for prefabricated floor installation according to claim 1 is characterized in that: The secondary beam corbel (5) is a secondary beam corbel (5) for beams of unequal height; the extension plate (54) is located at the bottom of the secondary reinforcing rib (53) vertically arranged in front and rear of the secondary beam corbel (5), so that when the extension plate (54) is laid on the main supporting rib plate (34), the horizontal height of the secondary supporting rib plate (52) is higher than the horizontal height of the main supporting rib plate (34).

3. The column top support tooling for prefabricated floor installation according to claim 1 is characterized in that: The secondary beam corbel (5) is a secondary beam corbel (5) for equal height beams. The extension plate (54) is connected to the upper surfaces of the front and rear ends of the secondary support ribs (52), so that when the extension plate (54) is laid on the main support ribs (34), the horizontal height of the secondary support ribs (52) is the same as the horizontal height of the main support ribs (34); and a through hole (56) for accommodating the main locking screw (4) to pass through is opened on the secondary reinforcing rib (53).

4. The column top support tool for installing a prefabricated floor according to claim 1, characterized in that: The extension plate (54) is provided with a first locking screw hole (55), the main support rib plate (34) is provided with a second locking screw hole (341), and the locking bolt (6) passes through the first locking screw hole (55) and the second locking screw hole (341) to achieve locking.

5. The method for using the column top support tooling for installing a prefabricated floor according to any one of claims 1 to 4, characterized in that: The steps include: Step 1, installation of the leveling support members (1), placing two leveling support members (1) on the front and rear sides of the column (7) respectively, and locking the leveling support members (1) by passing through the leveling locking screw (2) through the leveling through hole (13) after ensuring the horizontality of the leveling support members (1), so that the leveling support members (1) are clamped on the column (7); Step 2, installation of the main beam bracket (3), placing two main beam brackets (3) on the front and rear sides of the column (7), respectively, and the two main beam brackets (3) are supported on the corresponding leveling support members (1), and the main beam brackets (3) are locked by the main locking screw (4) passing through the main through hole (33), so that the main beam brackets (3) are clamped on the column (7); Step 3, installation of the secondary beam corbels (5), placing the two secondary beam corbels (5) on the left and right sides of the column (7) respectively, and the extension plates (54) of the two secondary beam corbels (5) are supported on the main support ribs (34) on the corresponding sides, and the extension plates (54) and the main support ribs (34) are locked by locking bolts (6); Step 4, pouring the beam-column joint, supporting the main beam (8) on the main beam corbel (3), then supporting the secondary beam (9) on the secondary beam corbel (5), and finally pouring concrete at the beam-column joint; Step 5, preliminary dismantling, loosen the leveling locking screw (2) appropriately, move the leveling support (1) down 5-10 mm, and then tighten the leveling locking screw (2) again so that the leveling support (1) is clamped on the column (7) again; Step 6, remove the main components, remove the locking bolt (6) and the main locking screw (4), because after the leveling support (1) moves downward, a gap is formed between the leveling support (1) and the main beam bracket (3), and the main beam bracket (3) and the secondary beam bracket (5) move downward slightly; first remove the secondary beam bracket (5), after the secondary beam bracket (5) is removed, the main beam bracket (3) has a tendency to overturn outward, but during the overturning process, the main beam bracket (3) will be limited by the leveling support (1) and the main beam (8) so that it cannot overturn, and at this time, the main beam bracket (3) is pulled out; Step 7: Completely dismantle, remove the leveling locking screw (2) to achieve the removal of the leveling support (1).

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