A floor slab leveling device that does not require dismantling the bottom formwork

Abstract

This application provides a leveling device for floor slabs that do not require dismantling of the bottom formwork, belonging to the field of building mold technology. It includes a support base, at least one positioning plate, and a jacking structure. The support base includes a horizontal plate and a vertical plate. The horizontal plate is connected to the bottom of the vertical plate. The vertical plate is placed at the connection point of two adjacent floor slabs that do not require dismantling of the bottom formwork, and has at least one limiting groove along the height direction. At least one positioning plate is provided, with each positioning plate corresponding to a limiting groove. The positioning plate slides in conjunction with the corresponding limiting groove, and the bottom of the positioning plate can contact the top of the floor slab that does not require dismantling of the bottom formwork. The jacking structure is connected to the support base. The jacking end of the jacking structure can press against the positioning plate, and the positioning plate, in conjunction with the horizontal plate, can clamp two adjacent floor slabs that do not require dismantling of the bottom formwork to level them. With the above-mentioned design, leveling of floor slabs that do not require dismantling of the bottom formwork can be achieved without relying on the experience of construction personnel, thus improving leveling efficiency and accuracy.

Description

Technical Field

[0001] This application belongs to the field of building mold technology, specifically relating to a floor slab leveling device that does not require dismantling the bottom formwork. Background Technology

[0002] The formwork-free floor slab is a new type of prefabricated floor slab, mainly composed of steel trusses and formwork-free prefabrication through special connectors or anchoring. After pouring, the formwork-free floor slab and the poured floor slab become a whole, and there is no need to dismantle the formwork-free floor slab.

[0003] Before pouring the formwork-free floor slab, the formwork-free bottom template is placed on the supporting structure. Then, side templates are installed on the outer perimeter of the formwork-free floor slab to form a pouring cavity between the formwork-free floor slab and the surrounding side templates. After pouring, the formwork-free floor slab does not need to be removed, but the side templates need to be removed. When multiple formwork-free floor slabs need to be used together, the connection positions of adjacent formwork-free floor slabs also need to be leveled so that the two adjacent formwork-free floor slabs are at the same height.

[0004] The existing leveling process requires construction workers to repeatedly measure with a handheld level and rely on their experience to level the floor slab that does not require removal of the bottom formwork. However, because the above leveling process depends on the experience of the construction workers, the leveling accuracy is inconsistent. Utility Model Content

[0005] This application provides a leveling device for floor slabs that do not require removal of the bottom formwork, which aims to solve the problem of inconsistent leveling accuracy when leveling floor slabs that do not require removal of the bottom formwork in the prior art.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] A floor slab leveling device that eliminates the need for removing the bottom formwork is provided, comprising:

[0008] The support base includes a horizontal plate and a vertical plate; the horizontal plate is connected to the bottom of the vertical plate, and the top of the horizontal plate is used to contact the bottom of the non-removable bottom formwork floor slab; the vertical plate is placed at the connection of two adjacent non-removable bottom formwork floor slabs, and the vertical plate has at least one limiting groove arranged along the height direction;

[0009] At least one positioning plate corresponds to a limiting groove; the positioning plate slides in conjunction with the corresponding limiting groove, and the bottom of the positioning plate can contact the top of the floor slab that does not require removal of the bottom formwork.

[0010] A jacking structure is connected to the support base; the jacking end of the jacking structure can abut against the positioning plate, and the positioning plate cooperates with the horizontal plate to clamp two adjacent non-removable bottom formwork floor slabs to level the two adjacent non-removable bottom formwork floor slabs.

[0011] In one possible implementation, the two sides of the positioning plate contact the sidewalls corresponding to the limiting grooves to laterally limit the positioning plate.

[0012] In one possible implementation, the pushing structure includes:

[0013] Two inclined plates are connected to the top of the vertical plate, and the two inclined plates are symmetrically arranged about the vertical plate; each of the inclined plates has a threaded hole arranged along the height direction;

[0014] The number of screws is equal to the number of threaded holes on the inclined plate; the screws are threadedly engaged with the corresponding threaded holes.

[0015] Specifically, when the vertical plate is located at the connection position of two adjacent non-removable bottom formwork floor slabs, the bottom of the positioning plate contacts the top of the non-removable bottom formwork floor slab, and the bottom end of the screw can abut against the positioning plate so that the positioning plate and the horizontal plate clamp the non-removable bottom formwork floor slab.

[0016] In one possible implementation, the jacking structure further includes a nut that is threadedly engaged with a portion of the screw located above the inclined plate; when the screw is in place, the nut is tightened to abut against the inclined plate.

[0017] In one possible implementation, the top of the inclined plate has a sleeve at the position of the screw, the top of the sleeve is horizontally positioned, and the bottom of the nut can abut against the top of the sleeve.

[0018] In one possible implementation, the screw has a first connecting hole near its tip, and the nut has a second connecting hole aligned with the first connecting hole;

[0019] The first connecting hole and the second connecting hole are engaged with the pin to fix the position of the nut and the screw when the screw is rotated.

[0020] In one possible implementation, the screw undergoes a surface anti-corrosion treatment.

[0021] In one possible implementation, the top of the positioning plate has a sleeve aligned with the screw, the bottom end of the screw can be inserted into the sleeve, and the bottom end of the screw can abut against the positioning plate.

[0022] In one possible implementation, the space between the inclined plate and the horizontal plate is a space for placing a floor slab that does not require disassembly of the bottom formwork.

[0023] In one possible implementation, the bottom of the vertical plate has a clearance groove for placing the horizontal plate, and the bottom of the vertical plate is coplanar with the bottom of the horizontal plate; wherein the horizontal plate is welded and fixed to the vertical plate.

[0024] This application provides a leveling device for floor slabs that do not require removal of the bottom formwork. Compared with the prior art, after placing the floor slab without removal of the bottom formwork on the supporting structure, a vertical plate is placed on one side of the floor slab, so that the horizontal plate is located at the bottom of the floor slab. Then, another floor slab without removal of the bottom formwork is placed on the supporting structure and aligned with the first floor slab, so that the two sides of the vertical plate contact the side walls of the two adjacent floor slabs. Then, a positioning plate is placed in the limiting groove of the vertical plate, and the positioning plate is pushed by the jacking structure, so that the positioning plate and the horizontal plate cooperate to clamp the connection position of the floor slab without removal of the bottom formwork, so that the height of the two adjacent floor slabs is the same, thus achieving the purpose of leveling. With the above-mentioned settings of this application, the leveling of the floor slab without removal of the bottom formwork can be achieved without relying on the experience of the construction personnel, which can improve the leveling efficiency and leveling accuracy. Attached Figure Description

[0025] Figure 1 A schematic diagram of a floor slab leveling device that does not require dismantling the bottom formwork, provided in an embodiment of this application;

[0026] Figure 2 A schematic diagram illustrating the installation of a floor slab leveling device that does not require the removal of the bottom formwork onto a floor slab that does not require the removal of the bottom formwork, as provided in an embodiment of this application.

[0027] Figure 3 for Figure 2 Enlarged diagram of section A in the middle;

[0028] Figure 4 A schematic diagram showing the installation of the support base of a floor slab leveling device that does not require the removal of the bottom formwork and the floor slab without the removal of the bottom formwork on the left side, as provided in an embodiment of this application;

[0029] Figure 5 A schematic diagram showing the right side of the non-removable bottom formwork floor slab installed on the right side of the support base for a floor slab leveling device that does not require removal of the bottom formwork, as provided in an embodiment of this application.

[0030] Figure 6 A schematic diagram showing the installation of a positioning plate on a support base for a floor slab leveling device that does not require dismantling the bottom formwork, as provided in an embodiment of this application;

[0031] Figure 7 A schematic diagram of the screw bottom end abutting against the positioning plate of a floor slab leveling device that does not require dismantling the bottom formwork, provided in an embodiment of this application;

[0032] Figure 8 This is a schematic diagram of the nut and sleeve fitting together in a floor slab leveling device that does not require dismantling the bottom formwork, as provided in an embodiment of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Support base; 11. Horizontal plate; 12. Vertical plate; 121. Clearance groove; 13. Limiting groove; 2. Positioning plate; 21. Insert sleeve; 3. Pushing structure; 31. Inclined plate; 32. Screw; 33. Nut; 34. Sleeve. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] Please refer to the following: Figures 1 to 8 This application describes a leveling device for a floor slab that does not require dismantling of the formwork. The device includes a support base 1, at least one positioning plate 2, and a pushing structure 3. The support base 1 includes a horizontal plate 11 and a vertical plate 12. The horizontal plate 11 is connected to the bottom of the vertical plate 12, and its top is used to contact the bottom of the floor slab that does not require dismantling of the formwork. The vertical plate 12 is placed at the connection point of two adjacent floor slabs that do not require dismantling of the formwork, and has at least one limiting groove 13 along its height direction. At least one positioning plate 2 corresponds one-to-one with the limiting groove 13. The positioning plate 2 slides in cooperation with the corresponding limiting groove 13, and its bottom can contact the top of the floor slab that does not require dismantling of the formwork. The pushing structure 3 is connected to the support base 1. The pushing end of the pushing structure 3 can press against the positioning plate 2, and the positioning plate 2, in cooperation with the horizontal plate 11, can clamp two adjacent floor slabs that do not require dismantling of the formwork to level them.

[0036] This application provides a leveling device for floor slabs that do not require removal of the bottom formwork. Compared with the prior art, after placing the floor slab without removal of the bottom formwork on the supporting structure, a vertical plate 12 is placed on one side of the floor slab, so that the horizontal plate 11 is located at the bottom of the floor slab. Then, another floor slab without removal of the bottom formwork is placed on the supporting structure, which is the prior art and will not be described in detail here. It is aligned with the previous floor slab, so that the two sides of the vertical plate 12 contact the side walls of the two adjacent floor slabs. Then, the positioning plate 2 is placed in the limiting groove 13 of the vertical plate 12, and the positioning plate 2 is pushed by the pushing structure 3, so that the positioning plate 2 cooperates with the horizontal plate 11 to clamp the connection position of the floor slab without removal of the bottom formwork, so that the height of the two adjacent floor slabs is the same, thus achieving the purpose of leveling. With the above-mentioned settings of this application, the leveling of the floor slab without removal of the bottom formwork can be achieved without relying on the experience of the construction personnel, which can improve the leveling efficiency and leveling accuracy.

[0037] It should be noted that at the connection point of two adjacent non-removable bottom formwork floor slabs, several leveling devices are set along the joint direction to ensure the consistency of leveling of the two adjacent non-removable bottom formwork floor slabs along the joint direction.

[0038] Taking two limiting grooves 13 on the vertical plate 12 as an example, there are two limiting grooves 13 on each vertical plate 12, so there are two positioning plates 2 on each vertical plate 12. One positioning plate 2 is placed in the corresponding limiting groove 13. When the vertical plate 12 is placed between two adjacent non-removable bottom formwork floor slabs, the positioning plate 2 is inserted into the corresponding limiting groove 13 so that the positioning plate 2 contacts the top of the two adjacent non-removable bottom formwork floor slabs respectively.

[0039] Then, by pushing the positioning plate 2 against the top of the jacking structure 3, the positioning plate 2 and the horizontal plate 11 can cooperate to clamp the two adjacent non-removable bottom formwork floor slabs, so that the tops of the two adjacent non-removable bottom formwork floor slabs are coplanar, thus achieving the purpose of leveling.

[0040] To reduce the left and right deviation of the positioning plate 2, the width of the limiting groove 13 is the same as the width of the positioning plate 2. Therefore, after the positioning plate 2 is placed in the limiting groove 13, both sides of the positioning plate 2 contact the corresponding side walls of the limiting groove 13 to restrict the left and right movement of the positioning plate 2, that is, to restrict the lateral movement of the positioning plate 2.

[0041] In addition, the width of the joint between two adjacent non-removable bottom formwork floor slabs is within 2mm, which meets the construction requirements and does not require additional treatment for the joint within 2mm. Therefore, in order to reduce the construction difficulty, this application sets the thickness of the vertical plate 12 to 2mm. After the two adjacent non-removable bottom formwork floor slabs are leveled by the leveling device of this application, the joint between the two adjacent non-removable bottom formworks is 2mm, and no additional treatment is required for the joint.

[0042] In some embodiments, such as Figures 1 to 8 As shown, the jacking structure 3 includes two inclined plates 31 and screws 32; both inclined plates 31 are connected to the top of the vertical plate 12, and the two inclined plates 31 are symmetrically arranged about the vertical plate 12; each inclined plate 31 has a threaded hole arranged along the height direction; the number of screws 32 is equal to the number of threaded holes on the inclined plates 31; the screws 32 are threadedly engaged with the corresponding threaded holes; the screws are carbon steel screws, and the surface of the screws 32 is treated with anti-corrosion; wherein, when the vertical plate 12 is located at the connection position of two adjacent non-removable bottom formwork floor slabs, the bottom of the positioning plate 2 contacts the top of the non-removable bottom formwork floor slab, and the bottom end of the screw 32 can abut against the positioning plate 2, so that the positioning plate 2 and the horizontal plate 11 clamp the non-removable bottom formwork floor slab.

[0043] Each positioning plate 2 corresponds to two inclined plates 31, and the number of threaded holes on the inclined plates 31 corresponds to the number of screws 32. Taking two positioning plates 2 on the same vertical plate 12 as an example, then the vertical plate 12 has two sets of inclined plates 31, and each set of inclined plates 31 corresponds to one of the positioning plates 2. Each set of inclined plates 31 consists of two inclined plates 31, and the two inclined plates 31 are symmetrically arranged about the vertical plate 12.

[0044] Taking the example of setting a threaded hole on each inclined plate 31, the screw 32 is threadedly engaged with the threaded hole on the inclined plate 31. By rotating the screw 32, the bottom end of the screw 32 can be pressed against the positioning plate 2, thereby making the positioning plate 2 and the horizontal plate 11 clamp the non-removable bottom formwork floor slab. The tops of two adjacent non-removable bottom formwork floor slabs can be at the same height, achieving the purpose of leveling.

[0045] It should be noted that after leveling two adjacent non-removable bottom formwork floor slabs using the leveling device, the concrete can be poured directly onto the non-removable bottom formwork floor slabs. In this application, the leveling device is poured together with the non-removable bottom formwork floor slabs, and there is no need to disassemble the leveling device.

[0046] In some embodiments, such as Figures 1 to 8 As shown, the jacking structure 3 also includes a nut 33, which is threadedly engaged with the screw 32 located above the inclined plate 31; when the screw 32 is connected in place, the nut 33 is tightened to the position abutting the inclined plate 31.

[0047] By setting a nut 33 on the screw 32, after the screw 32 abuts against the positioning plate 2, the nut 33 is screwed to the position of the inclined plate 31 and pressed against the inclined plate 31, which can fasten the screw 32. Therefore, during the pouring process, the stability of the screw 32 can be guaranteed, and the two adjacent non-removable bottom formwork floor slabs can always be in a leveled state, which can improve the pouring quality.

[0048] In some embodiments, such as Figures 1 to 8 As shown, the top of the inclined plate 31 has a sleeve 34 at the position of the screw 32. The top of the sleeve 34 is horizontally set, and the bottom of the nut 33 can abut against the top of the sleeve 34.

[0049] With the above arrangement, the nut 33 contacts the top of the sleeve 34, which increases the contact area between the nut 33 and the sleeve 34, and improves the tightening effect of the nut 33 when tightening it.

[0050] In some embodiments, such as Figures 1 to 8 As shown, the screw 32 has a first connecting hole near its top end, and the nut 33 has a second connecting hole aligned with the first connecting hole; wherein the first connecting hole and the second connecting hole are engaged with a pin to fix the position of the nut 33 and the screw 32 when the screw 32 is rotated.

[0051] To facilitate the rotation of the screw 32 by the construction personnel and to make the bottom end of the screw 32 press against the positioning plate 2, the position between the nut 33 and the screw 32 is first fixed by a pin. When the construction personnel rotate the nut 33, the screw 32 can be rotated. When it is necessary to apply a tightening force, the construction personnel can use a wrench to rotate the nut 33, which can make the screw 32 press against the positioning plate 2.

[0052] After the screw 32 is pressed against the positioning plate 2, the pin is pulled out from the first connecting hole and the second connecting hole, then the nut 33 is rotated and moved to the position of the sleeve 34. Finally, a preload is applied to the nut 33 so that the nut 33 is pressed against the sleeve 34. The above settings can fasten the screw 32 and reduce the loosening of the screw 32 during the pouring process.

[0053] In some embodiments, such as Figures 1 to 8 As shown, the top of the positioning plate 2 has a plug 21 aligned with the screw 32, the bottom end of the screw 32 can be inserted into the plug 21, and the bottom end of the screw 32 can press against the positioning plate 2.

[0054] By setting the insert 21 on the top of the positioning plate 2, the abutment position of the screw 32 can be positioned; the two inserts 21 on the positioning plate 2 are symmetrically arranged about the vertical plate 12. After the screw 32 and the insert 21 are inserted and engaged, the two parts of the positioning plate 2 can be evenly placed on the two adjacent non-removable bottom formwork floor slabs, that is, the vertical plate 12 is located in the middle position of the positioning plate 2.

[0055] In some embodiments, such as Figures 1 to 8 As shown, the bottom of the vertical plate 12 has a clearance groove 121 for placing the horizontal plate 11, and the bottom of the vertical plate 12 and the bottom of the horizontal plate 11 are coplanar; wherein, the horizontal plate 11 and the vertical plate 12 are welded and fixed.

[0056] The vertical plate 12 is positioned in the middle of the horizontal plate 11, which makes the two parts of the horizontal plate 11 have equal areas. When the horizontal plate 11 contacts the bottom of two adjacent non-removable bottom formwork floor slabs, the contact area between the horizontal plate 11 and the two adjacent non-removable bottom formwork floor slabs is the same.

[0057] By providing a clearance groove 121 at the bottom of the vertical plate 12, the depth of the clearance groove 121 is equal to the thickness of the horizontal plate 11, so that the bottom of the horizontal plate 11 can be coplanar with the bottom of the vertical plate 12; by welding the horizontal plate 11 to the vertical plate 12, the horizontal plate 11 and the vertical plate 12 can be made into a whole, thereby improving the connection strength between the horizontal plate 11 and the vertical plate 12.

[0058] In some embodiments, such as Figures 1 to 8 As shown, the space between the inclined plate 31 and the horizontal plate 11 is for placing the floor slab without removing the bottom formwork.

[0059] During construction, a non-removable bottom formwork slab is first placed on the supporting structure. Then, the vertical plate 12 and the horizontal plate 11 are placed on the side of the non-removable bottom formwork slab, which is called the left side. The left screw 32 is rotated so that it contacts the non-removable bottom formwork slab. No clamping force is required on the left non-removable bottom formwork slab. At this time, the right screw 32 and the positioning plate 2 are separated from the support base 1. The separation of the right screw 32 from the support base 1 increases the space between the right inclined plate 31 and the horizontal plate 11, making it easier to place the right non-removable bottom formwork slab between the right inclined plate 31 and the horizontal plate 11. Through the above settings, the position of the support base 1 can be initially positioned. During the placement of the right non-removable bottom formwork slab, the support base 1 will not fall downwards along the height direction.

[0060] Then, place the right-side non-removable bottom formwork floor slab on the supporting structure and position it to the right of the vertical plate 12. At this time, rotate the left-side screw 32 in the opposite direction so that the positioning plate 2 can be placed between the bottom of the left-side screw 32 and the left-side non-removable bottom formwork floor slab.

[0061] Positioning plate 2 contacts the top of the left and right non-removable bottom formwork floor slabs respectively. Then, by tightening the left screw 32 and the right screw 32, positioning plate 2 and horizontal plate 11 can clamp the two adjacent non-removable bottom formwork floor slabs, thus making the two adjacent non-removable bottom formwork floor slabs at the same height and achieving the purpose of leveling.

[0062] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A non-destructive formwork floor levelling device, characterised in that, include: Support base, including horizontal and vertical plates; The horizontal plate is connected to the bottom of the vertical plate, and the top of the horizontal plate is used to contact the bottom of the floor slab that does not require removal of the bottom formwork. The vertical plate is placed at the connection of two adjacent non-removable bottom formwork floor slabs, and the vertical plate has at least one limiting groove arranged along the height direction. At least one positioning plate corresponds to a limiting groove; the positioning plate slides in conjunction with the corresponding limiting groove, and the bottom of the positioning plate can contact the top of the floor slab that does not require removal of the bottom formwork. A push-out structure is connected to the support base; The jacking end of the jacking structure can press against the positioning plate, and the positioning plate and the horizontal plate can clamp two adjacent non-removable bottom formwork floor slabs to level the two adjacent non-removable bottom formwork floor slabs.

2. A stripper floor levelling device as claimed in claim 1, wherein, The two sides of the positioning plate contact the sidewalls corresponding to the limiting grooves to limit the positioning plate laterally.

3. A stripper floor leveling device as claimed in claim 1, wherein, The jacking structure includes: Two inclined plates are connected to the top of the vertical plate, and the two inclined plates are symmetrically arranged about the vertical plate; each of the inclined plates has a threaded hole arranged along the height direction; The number of screws is equal to the number of threaded holes on the inclined plate; the screws are threadedly engaged with the corresponding threaded holes. Specifically, when the vertical plate is located at the connection position of two adjacent non-removable bottom formwork floor slabs, the bottom of the positioning plate contacts the top of the non-removable bottom formwork floor slab, and the bottom end of the screw can abut against the positioning plate so that the positioning plate and the horizontal plate clamp the non-removable bottom formwork floor slab.

4. A stripper floor levelling device as claimed in claim 3, wherein, The jacking structure also includes a nut, which is threadedly engaged with the portion of the screw located above the inclined plate; when the screw is connected in place, the nut is tightened to the position abutting the inclined plate.

5. A stripper floor levelling device as claimed in claim 4, wherein, The top of the inclined plate has a sleeve at the position of the screw, the top of the sleeve is horizontally positioned, and the bottom of the nut can abut against the top of the sleeve.

6. A stripper floor levelling device as claimed in claim 4, wherein, The screw has a first connecting hole near its top end, and the nut has a second connecting hole aligned with the first connecting hole. The first connecting hole and the second connecting hole are engaged with the pin to fix the position of the nut and the screw when the screw is rotated.

7. A stripper floor leveling device as claimed in claim 3, wherein, The screw has a surface anti-corrosion treatment.

8. A stripper floor levelling device as claimed in claim 3, wherein, The top of the positioning plate has a sleeve aligned with the screw, and the bottom end of the screw can be inserted into the sleeve and pressed against the positioning plate.

9. A stripper floor leveling device as claimed in claim 3, wherein, The space between the inclined plate and the horizontal plate is for placing the floor slab without removing the bottom formwork.

10. A stripper floor leveling device as claimed in claim 1, wherein, The bottom of the vertical plate has a clearance groove for placing the horizontal plate, and the bottom of the vertical plate is coplanar with the bottom of the horizontal plate; wherein the horizontal plate is welded and fixed to the vertical plate.

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