Pre-burying device for through-floor casing pipe

Abstract

The utility model relates to a floor-penetrating casing pipe pre-embedding device which comprises an anchor piece, a floor-penetrating casing pipe pre-embedding device and a floor-penetrating casing pipe pre-embedding device, the anchor piece comprises a first fastening nut and an L-shaped iron piece, and the L-shaped iron piece is welded to the side face of the first fastening nut; the dovetail nail is used for fastening the L-shaped iron piece on the template; the lower end of the first screw rod is in threaded connection with the first fastening nut; the sleeve body surrounds the first screw rod and is arranged on the template; the cover plate is connected with the first screw rod in a penetrating manner and covers the sleeve body; and the second fastening nut is in threaded connection with the first screw rod and is tightened on the cover plate. According to the utility model, the quality problems such as dislocation and deviation of the pre-embedded sleeve can be solved.

Description

Technical Field

[0001] The utility model relates to the field of floor-penetrating casings, in particular to a floor-penetrating casing pre-embedded device. Background Art

[0002] In infrastructure projects, the construction of electromechanical systems often involves the pre-reservation and pre-embedding of casings through floor slabs. The pre-reservation and pre-embedding of casings for electromechanical pipelines along with the construction of the main structure can not only save construction costs, but also ensure process quality and speed up construction progress, compared with reserving holes in the structure and then pouring them, or opening holes in the structure. The traditional pre-reservation and pre-embedding process of casings through floor slabs often uses welding technology to fix the casings during construction, welding the casings to the structural steel bars. This construction process is not only labor inefficient, but also has quality problems such as misalignment of the casings due to concrete pouring and vibration. At the same time, the presence of many open flame operations on the construction site increases safety control risks. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pre-embedded device for a casing penetrating a floor slab, which is convenient for solving quality problems such as misalignment and deviation of the pre-embedded casing.

[0004] In order to solve the above problems, a floor sleeve pre-embedded device is adopted, which includes:

[0005] The anchor comprises a first fastening nut and an L-shaped iron piece, wherein the L-shaped iron piece is welded to a side surface of the first fastening nut;

[0006] Dovetail nails, which fasten the L-shaped iron pieces to the formwork;

[0007] A first screw rod, the lower end of which is threadedly connected to a first fastening nut;

[0008] A sleeve body, which surrounds the first screw and is arranged on the template;

[0009] A cover plate, which passes through the first screw rod and covers the sleeve body;

[0010] The second fastening nut is threadably connected to the first screw rod and is tightened on the cover plate.

[0011] With such a structure, the sleeve body can be fastened to the template by tightening the second fastening nut, and the cover plate prevents concrete from pouring into the sleeve body during pouring.

[0012] As a further improvement of the present invention, when the sleeve bodies are multiple and arranged in a row, a screw is used to transversely arrange and weld the multiple sleeve bodies.

[0013] As a further improvement of the utility model, a plurality of reinforcing ring plates spaced up and down are sleeved in the sleeve body; a plurality of reinforcing vertical plates spaced at angles are arranged on the reinforcing ring plates, and the reinforcing vertical plates are fixedly connected to the reinforcing ring plates and abut against the sleeve body;

[0014] Such a structure can prevent the sleeve body from being excessively deformed by being squeezed by concrete.

[0015] As a further improvement of the utility model, the upper ends and lower ends of the plurality of reinforcing vertical plates are provided with notches to respectively embed sealing rings, and the sealing rings respectively abut against the upper and lower ends of the sleeve body.

[0016] Such a structure can further improve the internal sealing and prevent the slurry from flowing inward.

[0017] As a further improvement of the utility model, the sleeve body is matched with a convex pipe cap.

[0018] With such a structure, the convex pipe cap is installed on the casing body in an inwardly buckled manner, which is convenient for protecting the finished product after casting.

[0019] The utility model has made effective improvements to the drawbacks of the traditional practice of pre-buried casing pipes penetrating through floor slabs. The promotion of this application can effectively improve labor efficiency, ensure construction quality, and reduce hot work at construction sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment.

[0021] Figure 2 This is a schematic diagram of the internal reinforcement structure and sealing structure of the casing body.

[0022] Figure 3 This is a schematic diagram of the installation of a convex pipe cap.

[0023] Figure 4 This is a schematic diagram of pre-embedded rows of casing.

[0024] Figure numerals: 1. anchor; 101. first fastening nut; 102. L-shaped iron piece; 2. dovetail nail; 3. first screw; 4. template; 5. sleeve body; 6. cover plate; 7. second fastening nut; 8. second screw; 9. reinforcement ring plate; 10. reinforcement vertical plate; 11. notch; 12. sealing ring; 13 convex pipe cap. DETAILED DESCRIPTION

[0025] 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 of 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.

[0026] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Example 1

[0028] like Figure 1-Figure 4 As shown, a pre-buried device for penetrating a floor sleeve comprises:

[0029] Anchor 1, comprising a first fastening nut 101 and an L-shaped iron piece 102, wherein the L-shaped iron piece 102 is welded to a side surface of the first fastening nut 101;

[0030] Dovetail nails 2, which fasten the L-shaped iron piece 102 to the template 4;

[0031] A first screw rod 3, the lower end of which is threadedly connected to the first fastening nut 101;

[0032] A sleeve body 5, which surrounds the first screw rod 3 and is arranged on the template 4;

[0033] a cover plate 6, which penetrates the first screw rod 3 and covers the sleeve body 5;

[0034] The second fastening nut 7 is threadedly connected to the first screw rod 3 and is tightened on the cover plate 6 .

[0035] In this embodiment, when the sleeve bodies 5 are multiple and arranged in a row, the second screw rod 8 is transversely arranged and welded to the multiple sleeve bodies 5 .

[0036] In this embodiment, a plurality of reinforcing ring plates 9 spaced apart from each other are sleeved in the sleeve body 5; a plurality of reinforcing vertical plates 10 spaced apart from each other at an angle are arranged on the reinforcing ring plate 9, and the reinforcing vertical plates 10 are fixedly connected to the reinforcing ring plate 9 and abut against the sleeve body 5;

[0037] In this embodiment, the upper and lower ends of the plurality of reinforcing vertical plates 10 are provided with notches 11 to respectively embed sealing rings 12 , and the sealing rings 12 respectively abut against the upper and lower ends of the sleeve body 5 .

[0038] In this embodiment, the sleeve body 5 is matched with a convex pipe cap 13 .

[0039] The utility model has made effective improvements to the drawbacks of the traditional practice of pre-buried casing pipes penetrating through floor slabs. The promotion of this application can effectively improve labor efficiency, ensure construction quality, and reduce hot work at construction sites.

[0040] This embodiment is aimed at the pre-embedded sleeve through the floor slab, abandons the welding and fixing method on the operation site, adopts prefabricated composite components, and fixes the sleeve through the floor slab by mechanical thread connection. This embodiment belongs to the non-fire operation on the operation surface, with accurate positioning, reliable fixation, simple construction, local materials can be used and reused, and the process is intervened early, and the installation and fixation can be carried out after the floor slab is laid and before the steel bars are laid.

[0041] The threaded connection through the floor sleeve fixing method is simple to construct and can be applied to wooden formwork and aluminum formwork. The more the number of pre-buried sleeves, the higher the degree of floor standardization, and the more favorable the implementation of this method is in terms of progress, quality, safety, cost, etc.

[0042] This embodiment adopts threaded connection to fix the through-floor sleeve, which is composed of dovetail nails, anchors, first screw rods, sleeve body, cover plate, first fastening nut and second fastening nut. During construction, firstly, the through-floor sleeve is positioned according to the construction drawings, then the anchor is connected to the formwork with dovetail nails, the first screw rod is inserted into the anchor fastening nut with a long bolt rod, and then the sleeve body and the cover plate with holes are passed through the first screw rod, and finally the sleeve body is locked with the second fastening nut.

[0043] Construction process:

[0044] Construction preparation → measurement and positioning → casing fixing → review and acceptance → component recovery → casing finished product protection;

[0045] Operation points:

[0046] 1. Construction preparation

[0047] (1) Be familiar with the construction drawings, and determine the parameters such as casing size, dimensions, quantity, etc. in combination with the mechanical and electrical construction drawings and civil construction drawings.

[0048] (2) Organize management personnel and workers to conduct technical briefings and introduce the prefabrication, processing and installation process methods and requirements of casing fixing components.

[0049] (3) Prepare construction machinery and tools, including welding machines, cutting machines, electric or manual screwdrivers, etc. Prefabricate the casing body and casing fixing components, including dovetail nails, anchors, long bolt rods, cover plates, fastening nuts, etc. To save resources, the fixing components can be made from local materials. For example, the anchors can be processed from discarded iron sheets, and the cover plates can be processed from waste templates.

[0050] 2. Measurement and positioning

[0051] After the construction of the civil engineering formwork is completed, measure and locate the center position of the casing passing through the floor slab according to the positioning dimensions of the construction drawings, and mark it with a marker after confirmation.

[0052] 3. Casing fixation

[0053] According to the positioning mark, the casing is fixed and installed. First, the anchor is fixed to the template with a dovetail nail, and then the long bolt rod is screwed to the first fixing nut of the anchor. Then the casing body is passed through the long bolt rod, and the casing position is positioned according to the mark, and then the cover plate is passed through the long bolt rod to cover the casing, and finally the casing is fixed by locking the casing with the second fixing nut.

[0054] 4. Review and acceptance

[0055] After the casing is fixed and before the floor slab is poured, the construction unit organizes a self-inspection to check the stability of the casing installation and the accuracy of the construction according to the drawings. After confirmation, the owner, supervisor and other units are organized to carry out the concealed procedures of reserving and pre-embedding the casing, and raise a sign for acceptance.

[0056] 5. Component recycling

[0057] After the current floor slab is poured, before the lower floor slab formwork is erected, the fixing parts fixed on the sleeves are recycled and placed in the on-site warehouse. When the lower floor slab construction has the conditions for pre-embedding, the fixing parts are reused to fix the sleeves that penetrate the floor slab.

[0058] 6. Finished casing protection

[0059] (1) After the formwork of the civil engineering floor is removed and the site is cleaned, the embedded casing is rechecked, with a focus on checking the accuracy of the casing position and the concentricity of the casing on the upper and lower floors. The concentricity can be checked using a laser level or hanging line method depending on the site conditions.

[0060] (2) After passing the re-inspection, clean the casing and cover it with an inner or outer snap-on cap to protect the finished product.

[0061] 7. Notes

[0062] (1) When the casing is embedded in a row, it can be fixed in advance by welding with steel bars according to the casing positioning spacing when the casing is prefabricated; when fixed on the template, only the first and last end casings need to be fixed, and according to the length and number of casings, the casings in the middle position can be appropriately selected for reinforcement and fixation;

[0063] (2) When pre-buried casing through the floor slab, the casing and fixing parts of the entire layer should be prefabricated and prepared in advance to avoid omissions;

[0064] (3) Since holes will appear in the floor support formwork when the sleeve is fixed, the upper and lower layers of the formwork should remain the same during the formwork recycling process.

[0065] The quality control measures are as follows:

[0066] 1. The positioning of the casing center must be accurate. It can be positioned according to the axis, beams, columns, etc. in the drawing as a reference, using laser instruments, rulers and other tools to control the center deviation of the upper and lower layers of the casing within ±3% to be qualified.

[0067] 2. The casing should be firmly fixed, the long bolt rod thread should be intact, the dovetail nails and fastening screw heads should be firmly fixed, and the casing should not be displaced or misaligned due to concrete vibration.

[0068] 3. During the concrete pouring process, a dedicated person should be assigned to supervise to prevent the casing from loosening.

[0069] 4. The recovery of casing fixing parts should be carried out after the concrete solidifies and forms a certain strength. Be careful when dismantling the fixing parts, check the quality of the casing embedment in real time, and record and handle it in time.

[0070] 5. Before protecting the finished casing, the center degree of the upper and lower layers should be checked again, and the center degree deviation of the upper and lower layers of casing should be controlled within ±3% to be qualified.

[0071] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For technicians in the technical field to which the present invention belongs, several equivalent substitutions or obvious variations can be made without departing from the concept of the present invention, and the performance or use is the same, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A pre-buried device for penetrating floor slab casing, characterized in that include: An anchor (1) comprising a first fastening nut (101) and an L-shaped iron piece (102), wherein the L-shaped iron piece (102) is welded to a side surface of the first fastening nut (101); Dovetail nails (2) fasten the L-shaped iron piece (102) to the template (4); A first screw rod (3), the lower end of which is threadedly connected to a first fastening nut (101); A sleeve body (5) surrounding the first screw rod (3) and arranged on the template (4); A cover plate (6) which passes through the first screw rod (3) and covers the sleeve body (5); A second fastening nut (7) which is threadedly connected to the first screw rod (3) and is tightened on the cover plate (6); A plurality of reinforcing ring plates (9) spaced apart from each other are sleeved inside the sleeve body (5); a plurality of reinforcing vertical plates (10) spaced apart from each other at an angle are arranged on the reinforcing ring plates (9); the reinforcing vertical plates (10) are fixedly connected to the reinforcing ring plates (9) and abut against the sleeve body (5); The upper and lower ends of the plurality of reinforcing vertical plates (10) are provided with notches (11) for respectively embedding sealing rings (12), and the sealing rings (12) respectively abut against the upper and lower ends of the sleeve body (5); The sleeve body (5) is matched with a convex tube cap (13).

2. The pre-buried device for inserting a casing through a floor slab according to claim 1 is characterized in that When the sleeve bodies (5) are multiple and arranged in a row, a second screw rod (8) is used to transversely arrange and weld the multiple sleeve bodies (5).

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