Device for planting steel bars in prefabricated secondary structure
Through the prefabricated secondary structure reinforced rib planting device, the problems of cumbersome tendons and unqualified pulling force in cast-in-place reinforced concrete structures are solved, and the operation is simplified, construction efficiency and safety are improved.
Patent Information
- Application Number
- CN202422200681.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The reinforcement method in cast-in-place reinforced concrete structures is complicated and the pulling force is unqualified, which affects construction efficiency and safety.
Prefabricated secondary structure reinforcement device is adopted, including bottom sealing steel plates, bottom nuts, steel casing, steel casing cards, fastening nuts and formwork. It is prefabricated by factory processing. After the reinforcement is planted, the holes are avoided when the concrete is poured. After the mold is removed, the nuts are recycled and a plastic cap is put on. The steel bars are screwed in during masonry construction.
The pass rate of pulling force of tendons is improved, the operation process is simplified, the workload on site is reduced, funds and time are saved, and safety hazards are avoided.
Smart Images
Figure CN223061778U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building construction, and specifically relates to a device for implanting steel bars in a precast secondary structure. Background Technique
[0002] With the rapid development of China's economy, the construction industry has developed rapidly, and cast-in-place reinforced concrete has always occupied a dominant position. The main advantages of cast-in-place reinforced concrete structures include good durability, good integrity, good moldability, good fire resistance, and saving steel and lower costs.
[0003] During the construction of building structures, in order to strengthen the integrity of the secondary structure masonry and the concrete structure, it is necessary to implant steel bars after the concrete structure is poured. The traditional steel bar implantation method is to first pour the concrete structure and then open holes to implant the steel bars. This steel bar implantation method has relatively cumbersome procedures, and because the steel bars are implanted later, the pulling force is likely to be unqualified. Content of the Utility Model
[0004] Aiming at the above problems existing in the prior art, the purpose of the utility model is to provide a device for implanting steel bars in a precast secondary structure to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A device for implanting steel bars in a precast secondary structure includes a bottom plugging steel plate, a bottom nut, a steel sleeve, a steel sleeve card, a fastening nut, a steel bar and a template; the bottom plugging steel plate is welded to one side of the bottom nut, and the other side of the bottom nut is welded to the tail of the steel sleeve. The position of the steel sleeve near the head is welded to the steel sleeve card; the head of the steel sleeve has threads, the template is provided with a precast hole, the head of the steel sleeve passes through the precast hole of the template, and a fastening nut is provided on the head of the steel sleeve; the head of the steel bar is provided with external threads, and the steel bar passes through the fastening nut and is inserted into the steel sleeve; the head of the steel bar is threadedly connected to the bottom nut.
[0007] As a further scheme of the utility model: the inner diameter of the steel sleeve is 1 mm larger than the outer diameter of the steel bar.
[0008] As a further scheme of the utility model: the thickness of the steel sleeve card is 0.5 - 0.7 mm, and the outer diameter is 40 - 60 mm.
[0009] As a further scheme of the utility model: the diameter of the steel bar is 5 - 7 mm;
[0010] As a further scheme of the utility model: the distance between the steel sleeve card and the end of the head of the steel sleeve is 30 - 50 mm.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model can normally assemble the combined structure into the wall and column formworks. Since a sealing steel plate is welded at the bottom of the device for implanting steel bars in the prefabricated secondary structure, cement slurry will not flow in during concrete pouring to block the holes. After the concrete is poured and waiting until it can be removed from the formwork, the nut is loosened, and then the formwork can be removed. At the same time, the nut can be recycled and reused. After the structural concrete construction is completed, a plastic pipe cap is put on the exposed port of the device to avoid hurting people with the protruding part, solving the problem of low qualified rate of the pull-out force of the implanted steel bars; it is simple to operate and has a wide range of applications; the utility model can be prefabricated and processed in a factory to reduce on-site operations. After the prefabricated device is poured, the steel bars can be implanted later, avoiding potential safety hazards caused by too long protruding parts at the implanted steel bar positions. When the masonry is being built, the steel bars that need to be implanted are screwed in, which can reduce the inventory time of the steel bars and save funds. Description of the Drawings
[0013] Figure 1 It is a schematic structural diagram of a device for implanting steel bars in a prefabricated secondary structure disclosed in the embodiment.
[0014] The reference numerals in the figure are: 1, bottom sealing steel plate; 2, bottom nut; 3, steel casing; 4, steel casing card; 5, fastening nut; 6, steel bar; 7, formwork. Detailed Embodiment
[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0016] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "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, an electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0017] Please refer to Figure 1, A device for implanting reinforcing bars in prefabricated secondary structures, comprising a bottom sealing steel plate 1, a bottom nut 2, a steel sleeve 3, a steel sleeve card 4, a fastening nut 5, a reinforcing bar 6 and a template 7; the bottom sealing steel plate 1 is welded to one side of the bottom nut 2, the other side of the bottom nut 2 is welded to the tail of the steel sleeve 3, and the steel sleeve 3 is welded to the steel sleeve card 4 at a position near the head; the head of the steel sleeve 3 has threads, the template 7 is provided with a prefabricated hole, the head of the steel sleeve 3 passes through the prefabricated hole of the template 7, and the fastening nut 5 is provided on the head of the steel sleeve 3; the head of the reinforcing bar 6 is provided with external threads, and the reinforcing bar 6 passes through the fastening nut 5 and is inserted into the steel sleeve 3; the head of the reinforcing bar 6 is threadedly connected to the bottom nut 2; the inner diameter of the steel sleeve 3 is 1 mm larger than that of the 6 mm diameter reinforcing bar 6, ensuring that the 6 mm diameter reinforcing bar 6 can freely penetrate.
[0018] During use, first position and drill a hole at the place where the reinforcing bar needs to be implanted for the template 7. Pass the threaded head of the finished product welded with the bottom sealing steel plate 1, the bottom nut 2, the steel sleeve 3 and the steel sleeve card 4 through the drilled hole, and tighten it with the fastening nut 5. Then, the assembled structure can be normally assembled into the wall and column templates. Since the bottom of the device for implanting reinforcing bars in prefabricated secondary structures is welded with a sealing steel plate 1, cement slurry will not flow in during concrete pouring to block the hole. The thickness of the steel sleeve card 4 is 0.6 mm and the outer diameter is 50 mm. Tightening the nut 5 can firmly fix the device on the template 7. After the concrete is poured and waiting until it can be demolded, loosen the nut 5, and then the template 7 can be removed. At the same time, the nut 5 can be recycled and reused. After the structural concrete construction is completed, put a plastic pipe cap on the exposed opening of the device to avoid hurting people with the protruding part. When the masonry structure is constructed, screw the 6 mm diameter reinforcing bar 6 with threads into the device, inject cement slurry, and when the strength of the cement slurry reaches the requirement, the masonry project construction can be carried out.
[0019] The diameter of the reinforcing bar 6 is 6 mm; the steel sleeve card 4 is 30 - 50 mm away from the head end of the steel sleeve 3; which is convenient for the use of the device.
[0020] The utility model solves the problem of low qualification rate of the pull-out force of the implanted reinforcing bars; it is simple to operate and has a wide range of applications; the utility model can be prefabricated and processed in a factory, reducing on-site operations. After the prefabricated device is poured, the reinforcing bars can be not implanted first, avoiding potential safety hazards caused by too long protrusion at the implanted part. When the masonry is constructed, then screw the reinforcing bars that need to be implanted into the device, which can reduce the inventory time of the reinforcing bars and save funds.
[0021] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model, and any reference signs in the claims should not be regarded as limiting the claims involved.
[0022] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A device for implanting reinforcing bars in prefabricated secondary structures, characterized in that, It includes a bottom plugging steel plate (1), a bottom nut (2), a steel casing (3), a steel casing card (4), a fastening nut (5), a steel bar (6) and a formwork (7); one side of the bottom plugging steel plate (1) is welded to the bottom nut (2), the other side of the bottom nut (2) is welded to the tail of the steel casing (3), and the position of the steel casing (3) near the head is welded to the steel casing card (4); the head of the steel casing (3) has threads, the formwork (7) is provided with a prefabricated hole, the head of the steel casing (3) passes through the prefabricated hole of the formwork (7), and a fastening nut (5) is provided on the head of the steel casing (3); the head of the steel bar (6) is provided with external threads, the steel bar (6) passes through the fastening nut (5) and is inserted into the steel casing (3); the head of the steel bar (6) is threadedly connected to the bottom nut (2).
2. The device for prefabricated secondary structure rebar planting according to claim 1, characterized in that, The inner diameter of the steel casing (3) is 1 mm larger than the outer diameter of the steel bar (6).
3. The device for prefabricated secondary structure rebar planting according to claim 2, characterized in that, The thickness of the steel casing card (4) is 0.5 - 0.7 mm, and the outer diameter is 40 - 60 mm.
4. The device for prefabricated secondary structure rebar planting according to claim 3, characterized in that, The diameter of the steel bar (6) is 5 - 7 mm.
5. The device for prefabricated secondary structure rebar planting according to claim 4, wherein, The steel casing card (4) is 30 - 50 mm away from the head end of the steel casing (3).