CN219509144U - Novel embedded wall connecting piece - Google Patents
Novel embedded wall connecting piece Download PDFInfo
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- CN219509144U CN219509144U CN202320595214.2U CN202320595214U CN219509144U CN 219509144 U CN219509144 U CN 219509144U CN 202320595214 U CN202320595214 U CN 202320595214U CN 219509144 U CN219509144 U CN 219509144U
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- wall connecting
- connecting pipe
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Abstract
The utility model relates to the technical field of constructional engineering, in particular to a novel embedded wall connecting piece which comprises an anchor nut, a bolt sleeve, an anchor plate, a bolt, a gasket, a wall connecting pipe, a galvanized straight-through joint and a lengthened wall connecting pipe; the anchoring nut is welded with the bolt sleeve; the anchor nut and the bolt sleeve are fixedly embedded in the concrete in a connecting way; the bolt penetrating gasket, the anchoring plate, the bolt sleeve and the anchoring nut are fixedly connected; one end of the wall connecting pipe is welded with the anchoring plate, and the other end of the wall connecting pipe is galvanized inner wire; one end of the lengthened wall connecting pipe is provided with a galvanized inner wire of the lengthened pipe, the galvanized inner wire is connected with the wall connecting pipe through a galvanized straight joint, and the other end of the lengthened wall connecting pipe is connected with an outer frame vertical rod. The embedded wall connecting piece is convenient to install and dismantle, reduces labor input and accelerates construction progress; can be reused, and saves material cost; the wall connecting piece does not penetrate through the concrete member, so that hidden danger of leakage of the pull joint is eliminated; the safety performance is good after calculation.
Description
Technical Field
The utility model relates to the technical field of constructional engineering, in particular to a novel embedded wall connecting piece.
Background
In the construction process of the scaffold, the wall connecting piece is used as a stress member for connecting the scaffold with a structure, so that the scaffold has important significance on the safety of the scaffold, partial collapse of the scaffold is directly connected with unreasonable and non-compliant arrangement of the wall connecting piece, and leakage of an outer wall is also caused by unrealistic plugging of a hole of the wall connecting piece.
In the prior art, a commonly used wall connecting piece structure such as China patent publication with the authority number of CN210067406U discloses a scaffold wall connecting piece, which comprises a wall penetrating bolt and a connecting piece, wherein the connecting piece comprises a steel plate, a welded steel pipe is arranged on the steel plate, and a reserved hole for penetrating the wall penetrating bolt is further formed in the steel plate. The high-strength bolt penetrates through the wall body through the sleeve and is effectively connected with the wall connecting piece, and the connecting piece is connected with the scaffold, so that the stability of the scaffold is ensured. Although the wall connecting piece has no reserved hole, the wall connecting piece does not need to be repaired, the diameter of the embedded sleeve is small, and the waterproof effect can be ensured by plugging the waterproof mortar; the decoration treatment is easy, the quality is easy to ensure, the construction process is simple and the content is less, meanwhile, the wall connecting piece can be repeatedly recycled, and the utilization rate of the steel pipe is improved. However, the wall connecting piece is provided with the embedded sleeve which penetrates through the whole wall or the beam, and when the wall connecting piece is dismounted, two persons inside and outside are required to assist in dismounting, so that the labor force investment is large; the reserved pore canal still needs to be plugged manually in the later period, and hidden danger of leakage exists; in addition, the wall connecting piece does not calculate the positions of bending resistance, shearing resistance, deflection and steel plate hole opening of the steel plate, and potential safety hazards exist.
Disclosure of Invention
Therefore, a novel embedded wall connecting piece which is reasonable in stress calculation, convenient to install and detach and capable of avoiding hidden leakage trouble needs to be designed to solve the problems faced at present.
The utility model adopts the following technical scheme: the novel embedded wall connecting piece comprises an anchor nut, a bolt sleeve, an anchor plate, a bolt, a gasket, a wall connecting pipe, a galvanized straight-through joint and a lengthened wall connecting pipe. The anchoring nut is fixedly connected with the bolt sleeve in a welding way; the anchor nut and the bolt sleeve are fixedly embedded in the concrete in a connecting way; the bolt penetrating gasket, the anchoring plate, the bolt sleeve and the anchoring nut are fixedly connected; one end of the wall connecting pipe is welded with the anchoring plate, and the other end of the wall connecting pipe is galvanized inner wire; one end of the lengthened wall connecting pipe is provided with a galvanized inner wire of the lengthened pipe, the galvanized inner wire is connected with the wall connecting pipe through a galvanized straight joint, and the other end of the lengthened wall connecting pipe is connected with an outer frame vertical rod.
The anchoring plate adopts a Q235 steel plate with the thickness of 143 multiplied by 80 multiplied by 16, and a vertical section is provided with a bolt hole phi 15 and a wall-connecting pipe hole phi 48 along the central line.
The anchoring nut is a high-strength anchoring nut.
The bolt diameter is 14mm.
The bolt sleeve is a seamless steel pipe with phi 16.
The wall connecting pipe and the lengthened wall connecting pipe adopt galvanized steel pipes with phi 48 multiplied by 3.0, the wall connecting pipe penetrates through the wall connecting pipe hole to be welded and fixed with the anchor plate, and the single-sided welding seam is 5mm in height.
Compared with the prior art, the utility model has the beneficial effects that:
1) In some embodiments of the embedded wall connecting piece, a single person can quickly dismantle the wall connecting piece on the outer frame operation surface, so that the labor input is reduced, and compared with the common embedded wall connecting piece, the embedded wall connecting piece reduces the use of steel in an embedded wall, can be repeatedly used, and can save the cost and accelerate the construction progress; 2) Because the anchor nut is arranged in the concrete, the connection between the anchor nut and the bolt does not penetrate through the whole concrete member, and the hidden trouble of leakage of the pull joint is eliminated; 3) The embedded wall connecting piece has good safety performance and guaranteed quality after calculation.
Drawings
Fig. 1 is a schematic view of a pre-buried wall connecting member according to the present utility model.
Fig. 2 is a schematic view of another angle of the embedded wall connecting member of the present utility model.
FIG. 3 is an exploded view of a bolt and anchor plate and anchor nut connection.
FIG. 4 is another angular schematic view of the bolt, anchor plate, anchor nut connection and disconnection.
Fig. 5 is a schematic view of a wall tube connection.
FIG. 6 is a simplified force diagram of an anchor plate.
In the figure: 1. an anchor nut; 2. a bolt sleeve; 3. an anchor plate; 4. a bolt; 5. a gasket; 6. a wall connecting pipe; 7. a galvanized straight-through joint; 8. lengthening the wall connecting pipe; 11. threading a nut; 31. bolt holes; 32. wall connecting pipe holes; 61. zinc plating inner wire; 81. zinc-plating the inner wire on the extension tube.
Detailed Description
The utility model is described in detail below with reference to the attached drawing figures:
in describing embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
As shown in fig. 1-6: a novel embedded wall connecting piece comprises an anchor nut 1, a bolt sleeve 2, an anchor plate 3, a bolt 4, a gasket 5, a wall connecting pipe 6, a galvanized straight joint 7 and a lengthened wall connecting pipe 8. The inside of the anchor nut 1 is provided with a nut threading 11, and the anchor nut 1 is fixedly connected with the bolt sleeve 2 in a welding way. The vertical section of the anchor plate 3 is provided with phi 15 bolt holes 31 and phi 48 wall connecting pipe holes 32 along the central line, the centers of the bolt holes 31 are 51.5mm away from the upper end edge of the anchor plate 3, the centers of the wall connecting pipe holes are 103mm away from the upper end edge of the anchor plate 3, and the aperture and the diameter are different by not more than 1mm. The bolt 4 penetrates through the gasket 5, the bolt hole 31 on the anchor plate 3 and the bolt sleeve 2, and is fixedly connected with the anchor nut 1 by matching with the internal thread 11 of the nut. The wall connecting pipe 6 passes through the wall connecting pipe hole 32 on the anchor plate 3 to be welded with the anchor plate 3, and the other end is provided with a galvanized internal wire 61; one end of the lengthened wall connecting pipe 8 is provided with a lengthened pipe galvanized inner wire 81, and is connected with the wall connecting pipe 6 through a galvanized straight joint 7, and the other end is connected with an outer frame vertical rod.
Before use, the wall connecting pipe 6 passes through the wall connecting pipe hole 32 and is welded and fixed with the anchor plate 3, and the single-sided welding seam is 5mm high; the anchor nut 1 and the bolt sleeve 2 are welded and fixed. When the concrete member formwork is used, after the concrete member formwork is supported, a hole is formed in the side template, an anchor nut 1 and a bolt sleeve 2 are placed on the inner side of the template, a bolt 4 sequentially passes through a gasket 5, the side template hole and the bolt sleeve 2, and a matched nut internal thread 11 is connected with the anchor nut 1 to be fixed on the outer side of the template; after the concrete pouring is completed, the anchor nut 1 and the wall connecting pipe 2 are left in a concrete body, the bolt 4 and the gasket 5 are unscrewed and removed, and the component side template is removed; then the bolts 4 sequentially pass through the gaskets 5, the bolt holes 31 on the anchor plates 3 and the bolt sleeves 2, and are connected with the anchor nuts 1 by matching with the internal threads 11 of the nuts, so that the anchor plates 3 are fixed on the outer side of the concrete member. After the scaffold is removed, the bolts 4, the gaskets 5, the anchor plates 3 and the wall connecting pipes 6 can be reused.
The wall connecting pipe 6 can be connected with the outer frame vertical rod through the length of the wall connecting pipe under the condition that the distance between the wall connecting pipe and the main node is less than 300 mm; under the condition that the distance between the connecting wall pipe 6 and the main node is not less than 300mm, the connecting wall pipe can be connected with the lengthening connecting wall pipe 8 through the galvanized through joint 7 for lengthening and is connected with the outer frame vertical rod.
The utility model is manufactured according to the design size in the manufacturing process. The shear strength of the connecting welding seam of the connecting wall pipe, the bending resistance, shearing resistance and deflection of the anchoring plate and the tensile strength of the bolt are safely checked:
the connection of the wall connecting pipe and the outer frame vertical rod takes the maximum bearing capacity of 12kN of the double fastener as the checking and calculating basis of the following 1), namely the bearing capacity of 12kN multiplied by the reduction coefficient of 0.9=10.8 kN and 11kN, so that the axial tension F of the wall connecting pipe 1 =11kN。
1) Checking the tensile strength of the bolt:
from the stress diagram of FIG. 6, the support reaction R at point A can be calculated A ，
Wherein F 1 For axial tension, L A Is the distance from the point A to the point B, L 1 For axial tension F 1 The distance to the end point of B,
the maximum axial tension of the bolt is the maximum support reaction R at the anchoring point of the support A in figure 6 A， I.e. N 1 =R A =22kN，
Table look-up to obtain C-level tensile strength design value f of common bolt t b =170n/mm, phi 14 bolt cross-sectional area a s =153.86mm²，
The design value N of the tensile bearing capacity of the bolt can be obtained from the above,
meeting the requirements.
2) And (3) checking and calculating the shearing resistance of the welding line:
length l of weld joint between connecting wall pipe and anchoring plate W Pi×48.3= 151.662mm, fillet weld thickness h f Table look-up to obtain the fillet weld tensile strength design value f =5mm f w =160 N/mm²，
From the above, the shear strength sigma of the welding line can be obtained f N ，
Meeting the requirements.
3) Bending, shearing and deflection of the anchor plate:
(1) the shearing resistance of the anchoring plate is checked and calculated,
the diameter of the bolt cap of the phi 14 bolt is 25mm, the thickness of the steel plate of the Q235 is 16, and the shearing area A is m Table look-up to obtain the design value f of shear strength of Q235 for steel plate v Support reaction R of =125n/mm, a anchor point A =F 2 =22kN，
The shearing stress of the peripheral anchoring plate of the bolt cap can be obtained from the upper part,
meets the requirements.
(2) The bending strength of the anchoring plate is checked (the bolt hole neutral line is the weakest part),
the table is searched to obtain the design value f=215N/mm of the bending strength of the steel plate of Q235,
design value of least favorable bending momentWherein L is an axial tension F 1 The distance to point a at the maximum abutment reaction,
moment-resisting sectionWhere b is the calculated width of the anchorage plate, h is the thickness of the anchorage plate,
the bending strength of the anchoring plate can be obtained from the above,
meets the requirements.
(3) The deflection of the anchoring plate is checked and calculated,
table look-up to obtain elastic modulus e=2.06×10 of steel plate 5 N/mm, steel plate section moment of inertia I=22500 mm 4 The allowable deflection v=l/250=0.206 mm of the steel plate,
the maximum deflection of the steel plate can be obtained from the above,
meets the requirements.
Through the calculation, the shear strength of the connecting welding seam of the connecting wall pipe meets the requirements of bending resistance, shearing resistance, deflection resistance and tensile strength of the bolt, so that the embedded connecting wall piece is practical, safe and reliable.
In conclusion, the embedded wall connecting piece has the advantages of convenience in mounting and dismounting operation, reusability, safety, reliability and the like, can reduce the investment of labor force, remarkably improve the construction period, reduce the construction cost and can prevent leakage hidden trouble caused by reserved holes.
Claims (4)
1. A novel embedded wall connecting piece comprises an anchor nut (1), a bolt sleeve (2), an anchor plate (3), a bolt (4), a gasket (5), a wall connecting pipe (6), a galvanized straight-through joint (7) and a lengthened wall connecting pipe (8); the method is characterized in that: the anchor nut (1) is fixedly connected with the bolt sleeve (2) through welding; the anchor nut (1) and the bolt sleeve (2) are embedded in concrete after being connected and fixed; the bolts (4) penetrate through the gaskets (5), the anchor plates (3) and the bolt sleeves (2) to be fixedly connected with the anchor nuts (1); one end of the wall connecting pipe (6) is welded with the anchor plate (3), and the other end is galvanized inner wire (61); one end of the lengthened wall connecting pipe (8) is provided with a galvanized inner wire (81) of the lengthened pipe, the galvanized inner wire is connected with the wall connecting pipe (6) through a galvanized straight joint (7), and the other end of the lengthened wall connecting pipe is connected with an outer frame vertical rod.
2. The novel embedded wall connecting piece according to claim 1, wherein: the anchor plate (3) is made of a Q235 steel plate with the thickness of 143 multiplied by 80 multiplied by 16, and a bolt hole (31) and a wall connecting pipe hole (32) are formed in the vertical section along the central line.
3. The novel embedded wall connecting piece according to claim 1, wherein: the anchoring nut (1) adopts a high-strength anchoring nut, and a nut threading (11) is arranged inside the anchoring nut (1).
4. The novel embedded wall connecting piece according to claim 1, wherein: the wall connecting pipe (6) and the lengthened wall connecting pipe (8) are galvanized steel pipes with phi 48 multiplied by 3.0, and the wall connecting pipe (6) passes through the wall connecting pipe hole (32) to be welded and fixed with the anchor plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320595214.2U CN219509144U (en) | 2023-03-24 | 2023-03-24 | Novel embedded wall connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320595214.2U CN219509144U (en) | 2023-03-24 | 2023-03-24 | Novel embedded wall connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219509144U true CN219509144U (en) | 2023-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320595214.2U Active CN219509144U (en) | 2023-03-24 | 2023-03-24 | Novel embedded wall connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219509144U (en) |
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- 2023-03-24 CN CN202320595214.2U patent/CN219509144U/en active Active
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