Detachable anti-overturning wall connecting piece
By embedding anchors in concrete and tightly connecting them with the concrete surface using a negative pressure adsorber, the problems of poor accuracy of traditional wall connecting parts in the embedded position, the difficulty of repairing and the inability to remove steel pipes are solved, and material recycling and high efficiency are achieved Disassembly improves construction safety and shear resistance.
Patent Information
- Application Number
- CN202420556333.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-21
AI Technical Summary
Traditional wall connecting parts have poor accuracy in the embedded position, difficult to repair later, unable to remove the steel pipe, fire hazards during the demolition process, and problems that are unfavorable to the decoration.
A detachable anti-pollution connecting wall piece is designed, with anchors pre-embedded in concrete, closely connected to the concrete surface with a negative pressure adsorber, and fixed to the outer frame vertical rod to realize material recycling and efficient disassembly.
It improves construction safety and installation efficiency, reduces costs, avoids steel pipe cutting, enhances waterproof performance and shear resistance, and reduces the difficulty of later repair.
Smart Images
Figure CN222295643U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building construction and relates to a detachable anti-overturning wall connecting piece. Background Art
[0002] Scaffolding wall ties are components that connect the main structure of the building and the scaffolding frame and can transmit tension and pressure. External frame wall ties play an important preventive role in avoiding major accidents such as toppling or collapse of high-rise building scaffolding. Therefore, in order to improve the safety of scaffolding, enhance the lateral rigidity of scaffolding, and improve its anti-overturning ability inward and outward, it is very necessary to design and study a new type of wall ties construction process.
[0003] Traditional wall ties use the embedded steel pipe method, which means that before pouring concrete, steel pipes of the same size as the frame steel pipes are buried in the beams or floor slabs and exposed. After the concrete pouring is completed, they are connected to the horizontal steel pipes of the frame to achieve a rigid connection.
[0004] The above-mentioned traditional wall connection method will have the following problems: (1) The accuracy of the embedded position is poor, which increases the difficulty of later repair; (2) The embedded parts cannot be removed later, which wastes steel pipe materials and increases costs; (3) During the removal process, the exposed embedded parts need to be cut, which increases manpower and material resources, and open flame cutting of steel pipes can easily create fire hazards; (4) The embedded parts left inside the concrete are not conducive to exterior wall decoration to a certain extent. For example, the Chinese patent with publication number CN220377809U discloses a scaffolding wall connection that requires multiple fixing bolts to be set on the wall, which damages the wall and increases the difficulty of later repair. Summary of the invention
[0005] In order to solve the above problems, the utility model provides a detachable anti-overturning wall connection component with high stability, recyclability, little impact on later construction, low construction cost, easy installation and removal, avoiding cutting, and improving installation efficiency and construction safety.
[0006] The technical solution adopted by the utility model is a detachable anti-overturning wall connecting member, including an anchor, which is pre-buried in a concrete structure, and the anchor includes a sleeve, one end of which is provided with an enlarged bottom plate, and the other end of the sleeve is an open end, which is closely attached to the inner side of the template of the concrete structure; after the template is removed, the open end of the sleeve leaks out of the concrete structure;
[0007] The open end of the sleeve is threadedly connected to one end of the connecting pipe, the adsorber ring is sleeved on the outside of the connecting pipe, and the end of the adsorber away from the concrete structure is fastened by a hexagonal nut so that the adsorber is adsorbed on the outer surface of the concrete structure; the other end of the connecting pipe is connected to the inner pole of the outer frame.
[0008] Furthermore, the adsorber is a negative pressure adsorption structure.
[0009] Furthermore, the adsorber includes a two-layer structure, a layer close to the concrete structure is a suction cup, and a first cylindrical cavity is provided at the center of the bottom surface of the suction cup; a second cylindrical cavity is provided inside a layer away from the concrete structure, and a first control valve and a second control valve are provided on both sides of the second cylindrical cavity, respectively, and the adsorber is made of nitrile rubber; a connecting pipe axially penetrates the first cylindrical cavity and the second cylindrical cavity of the adsorber, and the connecting pipe is sealed and connected to the rest of the adsorber.
[0010] Furthermore, the diameter of the second cylindrical cavity is 4-6 cm and the height is 1-2 cm; the diameter of the first cylindrical cavity is 8-10 cm and the height is 2-4 cm.
[0011] Furthermore, the sleeve is provided with a first internal thread, and the connecting pipe is provided with a first external thread of two-thirds of the length, and the first external thread matches the first internal thread.
[0012] Furthermore, the portion of the first external thread of the connecting pipe that leaks out of the adsorber matches the second internal thread of the hexagonal nut.
[0013] Furthermore, the light circular section of the connecting tube is fixedly connected to the inner pole of the outer frame through a rotating fastener.
[0014] Furthermore, a rib is provided between the bottom plate and the sleeve of the anchor.
[0015] Furthermore, the concrete structure is a concrete beam or a concrete slab.
[0016] The beneficial effects of the utility model are:
[0017] 1. Compared with traditional wall connecting parts, the connecting pipe of the utility model can be taken out from the embedded parts, leaving only the anchor in the concrete. There is no need to cut the steel pipe in the later stage, and the finished steel pipe material can be recycled to reduce production costs; the anchor can be equivalent to a built-in water stop plate, which increases the path of water flow and greatly improves the waterproof performance.
[0018] 2. The utility model can use waste rubber materials to make adsorbers, realize the secondary utilization of materials and facilitate disassembly. The adsorber is equipped with double control valves. The first control valve and the second control valve are opened to suck out the air inside the second cylindrical cavity. The upper plane structure of the second cylindrical cavity forms an arc structure. The air pressure inside the suction cup is greater than the air pressure inside the second cylindrical cavity. The connection surface between the suction cup and the upper layer expands upward, and the structure of the suction cup is deformed accordingly. The internal volume of the first cylindrical cavity increases, the air pressure decreases, and negative pressure is generated, forming an air pressure difference with the external atmospheric pressure, so that the suction cup is closely adsorbed to the surface of the concrete structure; negative pressure adsorption is achieved while improving stability.
[0019] 3. The utility model is connected to the concrete structure through negative pressure adsorption of the adsorber, which not only realizes the anti-overturning and anti-pullout requirements of the wall connection, but also protects the outer surface of the concrete, reducing the difficulty of later repairs; the adsorber is closely attached to the outer surface of the concrete, increasing the contact area with the outer surface of the concrete and improving the shear resistance of the wall connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 It is a schematic diagram of the overall structure of the detachable anti-overturning wall connection member of an embodiment of the utility model.
[0022] Figure 2 It is a structural schematic diagram of a connecting pipe according to an embodiment of the utility model.
[0023] Figure 3 It is a schematic structural diagram of the embedded anchor piece of an embodiment of the utility model.
[0024] Figure 4 It is a structural schematic diagram of the adsorber in the non-adsorbing state of an embodiment of the utility model.
[0025] Figure 5 It is a structural schematic diagram of the adsorber in the adsorption state of an embodiment of the utility model.
[0026] Figure 6 It is a structural schematic diagram of a hexagonal nut according to an embodiment of the utility model.
[0027] In the figure: 1. adsorber; 2. connecting pipe; 3. anchor; 4. concrete structure; 5. hexagonal nut; 6. rotating fastener; 7. inner pole of outer frame; 11. first control valve; 12. second control valve; 13. first cylindrical cavity; 14. suction cup; 15. second cylindrical cavity; 21. light circle segment; 22. first external thread; 31. sleeve; 32. first internal thread; 33. bottom plate; 51. second internal thread. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] Example
[0030] A detachable anti-overturning wall connection member, such as Figure 1 As shown, it includes an anchor 3, which is pre-buried in a concrete structure 4. The anchor 3 includes a sleeve 31. One end of the sleeve 31 is provided with an enlarged bottom plate 33 to improve the anchoring effect. The other end of the sleeve 31 is an open end, which is close to the inner side of the template of the concrete structure 4. After the template is removed, the open end of the sleeve 31 leaks out of the concrete structure 4, and the concrete structure 4 is a concrete beam or a concrete slab.
[0031] The open end of the sleeve 31 is threadedly connected to one end of the connecting pipe 2, and the adsorber 1 is sleeved on the outside of the connecting pipe 2. The side away from the concrete structure 4 is fastened by a hexagonal nut 5. The inner diameter of the hexagonal nut 5 is adapted to the outer diameter of the connecting pipe 2, so that the adsorber 1 is closely attached to the outer surface of the concrete structure 4, thereby increasing the contact area between the wall connection piece and the concrete and improving the shear resistance of the wall connection piece.
[0032] like Figure 2 , 3 As shown in 6, a first internal thread 32 is provided in the sleeve 31, and the connecting pipe 2 adopts a Φ48mm steel pipe. The steel pipe is provided with a first external thread 22 of two-thirds of the length. The first external thread 22 matches the first internal thread 32 and is threadedly connected; the part of the first external thread 22 of the connecting pipe 2 that leaks out of the adsorber 1 matches the second internal thread 51 of the hexagonal nut 5 and is threadedly connected, and the light circular segment 21 of the connecting pipe 2 is fixedly connected to the inner upright rod 7 of the outer frame by a rotating fastener 6; the rotating fastener 6 is a known structure in the art and is used to fix the connecting pipe 2 and the inner upright rod 7 of the outer frame.
[0033] In some embodiments, a rib is provided between the bottom plate 33 of the anchor 3 and the sleeve 31 to increase the contact area with the concrete and improve the pull-out resistance of the wall connection.
[0034] In some embodiments, the adsorber 1 is a single-layer negative pressure adsorption structure, which forms a negative pressure by sucking out the gas in the cavity between the adsorber 1 and the outer surface of the concrete structure 4, so that the adsorber 1 is firmly attached to the outer surface of the concrete structure 4.
[0035] In some embodiments, the structure of adsorber 1 is as follows Figure 4As shown, it includes a two-layer structure, a layer close to the concrete structure 4 is a suction cup 14, and a first cylindrical cavity 13 is provided at the center of the bottom surface of the suction cup 14; a second cylindrical cavity 15 is provided inside the layer away from the concrete structure 4, and a first control valve 11 and a second control valve 12 are respectively provided on both sides of the second cylindrical cavity 15; the material of the adsorber 1 is nitrile rubber.
[0036] The connecting pipe 2 axially penetrates the first cylindrical cavity 13 and the second cylindrical cavity 15 of the adsorber 1, and the connecting pipe 2 is sealedly connected to the rest of the adsorber 1 (except the first cylindrical cavity 13 and the second cylindrical cavity 15). If the portion above the first cylindrical cavity 13 in the lower structure moves relative to the connecting pipe 2 before and after the volume of the first cylindrical cavity 13 changes, a sliding sealing ring is provided between the portion above the first cylindrical cavity 13 in the lower structure and the connecting pipe 2.
[0037] The diameter of the second cylindrical cavity 15 is 4-6 cm and the height is 1-2 cm, and the diameter of the first cylindrical cavity 13 is 8-10 cm and the height is 2-4 cm. The smaller the second cylindrical cavity 15 is, the greater the shear adhesion force generated is.
[0038] Working process of adsorber 1:
[0039] like Figure 4 and Figure 5 As shown, the first control valve 11 and the second control valve 12 are opened to suck out the air inside the second cylindrical cavity 15. The upper plane structure of the second cylindrical cavity 15 forms an arc structure, the air pressure inside the suction cup 14 is greater than the air pressure inside the second cylindrical cavity 15, the connection surface between the suction cup 14 and the upper layer expands upward, and the structure of the suction cup 14 is deformed accordingly. The internal volume of the first cylindrical cavity 13 increases, the air pressure decreases, and negative pressure is generated, forming an air pressure difference with the external atmospheric pressure, so that the suction cup 14 is tightly adsorbed to the surface of the concrete structure 4, and the first control valve 11 and the second control valve 12 are closed.
[0040] When disassembly is required, the first control valve 11 and the second control valve 12 are opened again, the second cylindrical cavity 15 is restored to atmospheric pressure, and the shape is restored accordingly, the shape of the suction cup 14 connected thereto is restored, the internal volume of the first cylindrical cavity 13 becomes smaller, and the air pressure increases, which facilitates the separation of the adsorber 1 from the concrete structure 4, and then the hexagonal nut 5 is loosened, and finally the connecting pipe 2 is removed. Compared with the single-layer negative pressure adsorption structure, the two-layer structure adsorber 1 of the embodiment of the utility model increases the volume of the first cylindrical cavity 13 of the lower layer to form an arc structure through the internal and external air pressure difference of the first layer, thereby achieving negative pressure adsorption while improving stability.
[0041] The method of using the embodiment of the utility model:
[0042] (1) When supporting the formwork, the anchor 3 made of steel waste is accurately embedded, and the open end of the sleeve 31 of the anchor 3 is close to the inner side of the formwork;
[0043] (2) After the formwork is removed, the connecting pipe 2 with one threaded end is threadedly connected to the sleeve 31. At this time, the connecting pipe 2 exposed on the outer surface of the concrete still has some threads;
[0044] (3) The adsorber 1 is put on the connecting pipe 2, and the adsorber 1 is adsorbed on the outer surface of the concrete structure 4 by negative pressure, and is fastened by the hexagonal nut 5.
[0045] (4) The non-threaded end of the connecting pipe 2 is fixedly connected to the inner upright rod 7 of the outer frame through a rotating fastener 6.
[0046] In summary, the anchor 3 of the utility model is embedded in the concrete with higher stability and better safety. There is no need to cut the steel pipe in the later stage, so the material recycling is realized and the cost is reduced. In addition, it is connected with the outer surface of the concrete through the negative pressure adsorption force, and there is no need to use additional bolts to penetrate the wall. While ensuring the tensile and shear resistance of the wall connection, it will not damage the outer surface of the concrete, which reduces the construction difficulty for the later decoration and improves the anti-overturning property of the scaffolding.
[0047] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.
[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims
1. A detachable anti-overturning wall connection, comprising an anchor (3), wherein the anchor (3) is pre-buried in a concrete structure (4), and characterized in that: The anchor (3) comprises a sleeve (31), one end of the sleeve (31) is provided with an enlarged bottom plate (33), and the other end of the sleeve (31) is an open end, the open end being closely attached to the inner side of the formwork of the concrete structure (4); after the formwork is removed, the open end of the sleeve (31) leaks out of the concrete structure (4); The open end of the sleeve (31) is threadedly connected to one end of the connecting pipe (2); the adsorber (1) is sleeved on the outside of the connecting pipe (2); the end of the adsorber (1) away from the concrete structure (4) is fastened by a hexagonal nut (5) so that the adsorber (1) is adsorbed on the outer surface of the concrete structure (4); the other end of the connecting pipe (2) is connected to the inner upright pole (7) of the outer frame.
2. A detachable anti-overturning wall connection member according to claim 1, characterized in that: The adsorber (1) is a negative pressure adsorption structure.
3. A detachable anti-overturning wall connection member according to claim 1, characterized in that: The adsorber (1) comprises a two-layer structure, wherein a layer close to the concrete structure (4) is a suction cup (14), and a first cylindrical cavity (13) is provided at the center of the bottom surface of the suction cup (14); a second cylindrical cavity (15) is provided inside a layer away from the concrete structure (4), and a first control valve (11) and a second control valve (12) are provided on both sides of the second cylindrical cavity (15), respectively; the material of the adsorber (1) is nitrile rubber; and a connecting pipe (2) penetrates the first cylindrical cavity (13) and the second cylindrical cavity (15) of the adsorber (1) along the axial direction, and the connecting pipe (2) is sealedly connected to the rest of the adsorber (1).
4. A detachable anti-overturning wall connection member according to claim 3, characterized in that: The diameter of the second cylindrical cavity (15) is 4-6 cm and the height is 1-2 cm; the diameter of the first cylindrical cavity (13) is 8-10 cm and the height is 2-4 cm.
5. The detachable anti-overturning wall connection member according to claim 1, characterized in that: The sleeve (31) is provided with a first internal thread (32), the connecting pipe (2) is provided with a first external thread (22) of two-thirds of the length, and the first external thread (22) matches the first internal thread (32).
6. A detachable anti-overturning wall connection member according to claim 1, characterized in that: The portion of the first external thread (22) of the connecting pipe (2) that leaks out of the adsorber (1) matches the second internal thread (51) of the hexagonal nut (5).
7. A detachable anti-overturning wall connection member according to claim 1, characterized in that: The light circular section (21) of the connecting tube (2) is fixedly connected to the inner upright pole (7) of the outer frame via a rotating fastener (6).
8. The detachable anti-overturning wall connection member according to claim 1, characterized in that: A rib is provided between the bottom plate (33) of the anchor (3) and the sleeve (31).
9. A detachable anti-overturning wall connection member according to claim 1, characterized in that: The concrete structure (4) is a concrete beam or a concrete slab.