External hanging formwork for steel structure building

By designing the coordination of the limit components and plug-in grooves of the steel structure building external formwork, the problem of the formwork being blocked after the concrete drops is solved, the stable connection and convenient disassembly of the formwork are achieved, and construction efficiency and building quality are improved.

CN223269595UActive Publication Date: 2025-08-26BEIJING HAICHUAN JINYU ENGINEERING CO LTD
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Patent Information

Application Number
CN202422373094.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-28
Publication Date
2025-08-26
Estimated Expiration
2034-09-28

AI Technical Summary

Technical Problem

The existing steel structure building external formwork is prone to blockage and prevent holes when concrete drips, resulting in inconvenient splicing and positioning of the formwork and difficult to unblock.

Method used

The first positioning steel mold and the second positioning steel mold are fixedly connected through the limiting assembly, and the threaded connection of the limiting socket, pin rod and screw hole is used to ensure the precise alignment and solid connection of the formwork, and the precise docking of the formwork is achieved through the plug-in groove. The concrete clogging problem is considered in the design, which is convenient for cleaning.

Benefits of technology

It improves the stability and construction efficiency of formwork splicing, reduces construction errors, ensures the flatness and building quality of the concrete surface, and solves the shortcomings of traditional formwork in splicing positioning and anti-blocking.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building templates, in particular to a steel structure building external hanging template, which adopts the technical scheme that the steel structure building external hanging template comprises a first positioning steel die and a second positioning steel die, the first positioning steel die and the second positioning steel die are fixedly connected through a limiting assembly, the second positioning steel die comprises two bottom inserting steel dies, and the bottom inserting steel dies are fixedly connected with the first positioning steel die and the second positioning steel die. Limiting sockets are welded and installed on the sides, deviating from each other, of the two bottom inserting steel molds correspondingly. The limiting assembly comprises a first pin rod and a second pin rod, a screw hole is formed in the end, close to the second pin rod, of the first pin rod, and a screw is welded to the end, close to the first pin rod, of the second pin rod. The opposite ends of the first pin rod and the second pin rod penetrate through the two sides of the limiting socket correspondingly and are in threaded connection through the screw rod and the screw hole. The device disclosed by the utility model has the advantages of convenience in template splicing and positioning, no fear of blockage and convenience in dredging, and solves the problem that in the prior art, once concrete drips and is blocked when the device is used, the template is difficult to position and splice.
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Description

Technical Field

[0001] The utility model relates to the technical field of building templates, in particular to an external template for a steel structure building. Background Art

[0002] The primary function of building formwork is to bear its own weight and any external loads that may be applied during construction. Compared to traditional wood, plywood, or steel formwork, steel formwork can significantly reduce the challenges of pore water pressure and air bubble removal during concrete pouring. Once concrete is poured and formed using steel formwork, it creates an ideal roughened surface. This eliminates the need for additional roughening after the concrete sets, allowing for direct construction. This type of formwork can improve construction efficiency, reduce material waste, and potentially lower overall construction costs.

[0003] After extensive searching, the publication number is CN220705183U, which discloses a steel structure building external formwork. The connection positioning structure facilitates the connection between the No. 1 building steel formwork and the No. 2 building steel formwork, and facilitates the pouring of concrete between the No. 1 building steel formwork and the No. 2 building steel formwork for shaping. The No. 2 positioning card and the No. 1 positioning card are respectively inserted into the positioning through grooves opened at both ends of one side of the No. 1 building steel formwork and the No. 2 building steel formwork, which also enhances the sealing and prevents cement from seeping out from the side.

[0004] However, in actual use, it was found that in the existing technology, when the formwork is in use, once concrete drips into the positioning anti-dropping holes, it will make it difficult for the triangular positioning blocks to enter during positioning installation. Moreover, the positioning anti-dropping holes are not a through-type structure, which makes it difficult to clear the positioning anti-dropping holes after they are blocked by concrete, thereby causing inconvenience in splicing and positioning the formwork during installation. Therefore, a steel structure building external formwork is needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a steel structure building external formwork, which has the advantages of convenient template splicing and positioning, and is not afraid of blockage and easy to clear. It solves the problem in the prior art that once the device is blocked by concrete dripping during use, it is difficult to position and splice the template.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solution: a steel structure building external template, comprising a first positioning steel mold and a second positioning steel mold, wherein the first positioning steel mold and the second positioning steel mold are fixedly connected by a limit assembly, and the second positioning steel mold comprises two bottom plug-in steel molds, and the two bottom plug-in steel molds are respectively welded with limit sockets installed on opposite sides;

[0007] The limiting assembly includes a first pin and a second pin, wherein the first pin has a screw hole at one end close to the second pin, and the second pin has a screw rod welded to one end close to the first pin;

[0008] The opposite ends of the first pin and the second pin pass through two sides of the limiting socket respectively and are threadedly connected through the screw rod and the screw hole.

[0009] Preferably, the first positioning steel mold comprises two top-insertion steel molds, each with a first insertion slot defined on either side of its lower end. The top-insertion steel mold outside the first insertion slot is provided with a hole for the first and second pins to pass through. In this design, the first positioning steel mold is composed of two top-insertion steel molds, each with first insertion slots machined on either side of its lower end. These first insertion slots are designed for precise docking with the second positioning steel mold, ensuring a tight fit. This design improves the stability of the connection between the template components, resulting in greater rigidity and reliability when the structure is subjected to heavy loads.

[0010] Preferably, the two bottom insert steel molds each have a second insertion slot on either side of their upper end surfaces, and a pull ring is welded to the center of their lower end surfaces. The second positioning steel mold in this design comprises two bottom insert steel molds, each with a second insertion slot on either side of its upper end surface, for docking with the first insertion slot of the top insert steel mold. Furthermore, a pull ring is welded to the center of the lower end surface of each bottom insert steel mold to facilitate demolding during construction and disassembly. The addition of the pull ring provides an additional fixing point, making the formwork easier to disassemble during construction, thereby speeding up construction.

[0011] Preferably, the first and second positioning steel molds are connected and installed via first and second insertion slots, with the upper and lower ends of the first and second positioning steel molds being coplanar. In the design, the first and second positioning steel molds are connected and installed via first and second insertion slots. This design ensures precise alignment of the upper and lower ends of the two positioning steel molds, forming a smooth working surface. This precise alignment reduces errors during construction, ensures surface flatness after concrete pouring, and contributes to improved building quality.

[0012] Preferably, the end of the stopper socket facing away from the second positioning steel mold is coaxial with the outer wall of the first positioning steel mold. In this design, the end of the stopper socket facing away from the second positioning steel mold is coaxial with the outer wall of the first positioning steel mold. This alignment ensures symmetry and uniform load distribution during the connection of the formwork. This design improves the overall stability of the formwork structure and helps reduce structural deviation or damage caused by improper construction.

[0013] Preferably, the end of the first pin facing away from the second pin is provided with a nut head, and a retaining ring is provided on the first pin. The first pin is slidably mounted on the first positioning steel mold via the nut head and retaining ring. In this design, the end of the first pin facing away from the second pin is provided with a nut head, and a retaining ring is provided on the pin. This structure allows the first pin to be slidably mounted on the first positioning steel mold via the nut head and retaining ring, preventing the first pin from falling.

[0014] Preferably, the end of the second pin facing away from the first pin is provided with a nut head and a retaining ring. The second pin is slidably mounted on the first positioning steel mold via the nut head and retaining ring. In this design, the end of the second pin facing away from the first pin is also provided with a nut head and a retaining ring. This allows the second pin to be stably mounted on the first positioning steel mold via the nut head and retaining ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This utility model ensures precise positioning and a secure connection between the templates through the coordinated use of the first and second positioning steel molds, as well as the fixed connection of the limiter assembly. This design reduces errors during construction, improves construction efficiency and structural stability. Limiter sockets are welded to the bottom insert of the second positioning steel mold. These sockets are designed to account for potential blockages during concrete pouring. Even if concrete drips, they are easily cleaned and maintained, thus avoiding difficulties in positioning and installation caused by blockages.

[0017] The first pin and the second pin are threadedly connected by a screw and a screw hole. This connection is not only firm but also easy to disassemble and clean when needed, further improving the maintenance and use convenience of the template. The first pin and the second pin are slidably installed by a nut head and a limiting ring. This design prevents the pin from falling off during the installation and adjustment of the template.

[0018] The first positioning steel formwork and the second positioning steel formwork are installed by plugging them into the first plug-in slot and the second plug-in slot, which ensures that the upper and lower ends of the formwork are in the same plane. This alignment method helps to improve the accuracy of construction and the quality of concrete pouring. The steel structure building external formwork not only improves construction efficiency, but also solves the shortcomings of traditional formwork in splicing positioning and anti-blocking, demonstrating its practical value and innovation in modern building construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the first positioning steel mold structure of the present utility model;

[0021] Figure 3 This is a schematic diagram of the second positioning steel mold structure of the present utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional connection structure of the limit assembly of the present utility model.

[0023] In the figure: 1. First positioning steel mold; 11. Top insert steel mold; 101. First plug-in slot; 2. Second positioning steel mold; 21. Bottom insert steel mold; 201. Second plug-in slot; 202. Pull ring; 203. Limit socket; 3. Limit assembly; 31. First pin; 32. Second pin; 301. Nut head; 302. Limit ring; 303. Screw hole; 304. Screw. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the utility model provides an embodiment: a steel structure building external template, including a first positioning steel mold 1 and a second positioning steel mold 2, the first positioning steel mold 1 and the second positioning steel mold 2 are fixedly connected by a limit assembly 3, the second positioning steel mold 2 includes two bottom plug-in steel molds 21, and the two bottom plug-in steel molds 21 are respectively welded with a limit socket 203 on the opposite side;

[0027] The limiting assembly 3 includes a first pin 31 and a second pin 32. A screw hole 303 is formed on one end of the first pin 31 close to the second pin 32. A screw 304 is welded to one end of the second pin 32 close to the first pin 31.

[0028] The opposite ends of the first pin 31 and the second pin 32 pass through two sides of the limiting socket 203 and are threadedly connected through the screw 304 and the screw hole 303 .

[0029] Specifically, the coordinated use of the first and second positioning steel molds 1 and 2, along with the fixed connection of the stopper assembly 3, ensures precise positioning and a secure connection between the mold plates. This design reduces errors during construction, improving efficiency and structural stability. Stopper sockets 203 are welded to the bottom insert 21 of the second positioning steel mold 2. These sockets are designed to account for potential blockages during concrete pouring. Even if concrete drips, they are easily cleaned and maintained, thus avoiding difficulties in positioning and installation caused by blockages.

[0030] The first pin 31 and the second pin 32 are threadedly connected by the screw 304 and the screw hole 303. This connection is not only firm but also easy to disassemble and clean when needed, further improving the maintenance and use convenience of the template. The first pin 31 and the second pin 32 are slidably installed by the nut head 301 and the limit ring 302. This design prevents the pins from falling off during the installation and adjustment of the template.

[0031] The first positioning steel formwork 1 and the second positioning steel formwork 2 are installed by plugging together the first plug-in slot 101 and the second plug-in slot 201, ensuring that the upper and lower ends of the formwork are in the same plane. This alignment method helps to improve the accuracy of construction and the quality of concrete pouring. The steel structure building external formwork not only improves construction efficiency, but also solves the shortcomings of traditional formwork in splicing positioning and anti-blocking, demonstrating its practical value and innovation in modern building construction.

[0032] Example 2

[0033] In order to improve the stability of the formwork during installation and avoid concrete dripping and causing difficulties in splicing, such as Figure 2 and Figure 3 As shown, in this embodiment, the first positioning steel mold 1 includes two top-insertion steel molds 11, and first plug-in grooves 101 are provided on both sides of the lower end surfaces of the two top-insertion steel molds 11. Holes for the first pin 31 and the second pin 32 to pass through are provided on the top-insertion steel mold 11 outside the first plug-in grooves 101. In the design, the first positioning steel mold 1 is composed of two top-insertion steel molds 11, and first plug-in grooves 101 are finely machined on both sides of the lower end surface of each top-insertion steel mold 11. These first plug-in grooves 101 are designed for precise docking with the second positioning steel mold 2 to ensure a tight fit of the structure. This design improves the connection stability between the template components, making the structure exhibit higher rigidity and reliability when bearing heavy loads.

[0034] Furthermore, the upper surfaces of the two bottom insert steel molds 21 are each provided with a second insertion groove 201 on either side, and a pull ring 202 is welded to the center of the lower end surfaces of each bottom insert steel mold 21. In the design, the second positioning steel mold 2 comprises two bottom insert steel molds 21, each of which has a second insertion groove 201 on either side of its upper end surface, which is used to dock with the first insertion groove 101 of the top insert steel mold 11. Furthermore, a pull ring 202 is welded to the center of the lower end surface of each bottom insert steel mold 21 to facilitate demolding during construction and disassembly. The addition of the pull ring 202 provides an additional fixing point, making the mold easier to disassemble during construction, thereby speeding up construction.

[0035] Furthermore, the first and second positioning steel molds 1 and 2 are connected and installed via the first and second insertion slots 101 and 201, with the upper and lower ends of the first and second positioning steel molds 1 and 2 being coplanar. In this design, the first and second positioning steel molds 1 and 2 are connected and installed via the first and second insertion slots 101 and 201. This design ensures precise alignment of the upper and lower ends of the two positioning steel molds, forming a smooth working surface. This precise alignment reduces construction errors, ensures surface flatness after concrete pouring, and contributes to improved building quality.

[0036] Furthermore, the end of the stopper socket 203 facing away from the second positioning steel mold 2 is coaxial with the outer wall of the first positioning steel mold 1. In this design, the end of the stopper socket 203 facing away from the second positioning steel mold 2 is coaxial with the outer wall of the first positioning steel mold 1. This alignment ensures symmetry and uniform load distribution during the formwork connection. This design improves the overall stability of the formwork structure and helps reduce structural deviation or damage caused by improper construction.

[0037] Example 3

[0038] In order to improve the efficiency of template installation, Figure 1 and Figure 4 As shown, in this embodiment, a nut head 301 is provided at the end of the first pin 31 facing away from the second pin 32. A retaining ring 302 is provided on the first pin 31. The first pin 31 is slidably mounted on the first positioning steel mold 1 via the nut head 301 and retaining ring 302. In this design, the nut head 301 is provided at the end of the first pin 31 facing away from the second pin 32, and the retaining ring 302 is provided on the pin. This structure allows the first pin 31 to be slidably mounted on the first positioning steel mold 1 via the nut head 301 and retaining ring 302, preventing the first pin 31 from falling.

[0039] Furthermore, the end of the second pin 32 facing away from the first pin 31 is equipped with a nut head 301 and a retaining ring 302. The second pin 32 is slidably mounted on the first positioning steel mold 1 via the nut head 301 and retaining ring 302. In this design, the end of the second pin 32 facing away from the first pin 31 is also equipped with a nut head 301 and a retaining ring 302. This ensures that the second pin 32 can also be stably mounted on the first positioning steel mold 1 via the nut head 301 and retaining ring 302.

[0040] When the present invention is used, the first positioning steel mold 1 is placed in a predetermined position to ensure its stability, the second plugging slot 201 of the second positioning steel mold 2 is aligned with the first plugging slot 101 on the first positioning steel mold 1, the first positioning steel mold 1 and the second positioning steel mold 2 are plugged and installed through the first plugging slot 101 and the second plugging slot 201, ensuring that the upper and lower ends of the two are in the same plane, the nut heads 301 of the first pin rod 31 and the second pin rod 32 are screwed together through the screw rod 304 and the screw hole 303, and the first pin rod 31 and the second pin rod 32 are simultaneously passed through the limit socket 203, thereby fixing the positions of the first positioning steel mold 1 and the second positioning steel mold 2;

[0041] Before pouring concrete, the stability and position accuracy of the formwork need to be checked. If necessary, fine-tuning should be performed to ensure the accuracy and firmness of the formwork installation. Once the formwork is installed and positioned, concrete pouring can begin. After the concrete solidifies, the formwork is disassembled in the reverse order. First, loosen the nut head 301, then release the connection between the first pin 31 and the second pin 32, and finally separate the first positioning steel formwork 1 and the second positioning steel formwork 2.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A steel structure building external template, comprising a first positioning steel mold (1) and a second positioning steel mold (2), wherein the first positioning steel mold (1) and the second positioning steel mold (2) are fixedly connected by a limiting assembly (3), characterized in that: The second positioning steel mold (2) comprises two bottom insert steel molds (21), and the two bottom insert steel molds (21) are respectively welded with a limiting socket (203) mounted on the opposite sides; The limiting assembly (3) comprises a first pin (31) and a second pin (32), wherein a screw hole (303) is provided at one end of the first pin (31) close to the second pin (32), and a screw (304) is welded to one end of the second pin (32) close to the first pin (31); The opposite ends of the first pin rod (31) and the second pin rod (32) respectively pass through the two sides of the limiting socket (203) and are threadedly connected through the screw rod (304) and the screw hole (303).

2. A steel structure building external formwork according to claim 1, characterized in that: The first positioning steel mold (1) comprises two top insertion steel molds (11), both sides of the lower end surfaces of the two top insertion steel molds (11) are provided with first insertion grooves (101), and the top insertion steel mold (11) outside the first insertion grooves (101) is provided with holes for the first pin rod (31) and the second pin rod (32) to pass through.

3. The steel structure building external formwork according to claim 1, characterized in that: Second insertion grooves (201) are respectively provided on both sides of the upper end surfaces of the two bottom insertion steel molds (21), and pull rings (202) are welded and installed in the middle of the lower end surfaces of the two bottom insertion steel molds (21).

4. A steel structure building external formwork according to claim 2, characterized in that: The first positioning steel mold (1) and the second positioning steel mold (2) are plugged and installed through the first plug-in slot (101) and the second plug-in slot (201), and the upper and lower ends of the first positioning steel mold (1) and the upper and lower ends of the second positioning steel mold (2) are located in the same plane.

5. The steel structure building external formwork according to claim 1, characterized in that: The end of the limiting socket (203) facing away from the second positioning steel mold (2) is located on the same axis as the outer wall of the first positioning steel mold (1).

6. The steel structure building external formwork according to claim 1, characterized in that: A nut head (301) is provided at one end of the first pin rod (31) facing away from the second pin rod (32), a limiting ring (302) is provided on the first pin rod (31), and the first pin rod (31) is slidably mounted on the first positioning steel mold (1) through the nut head (301) and the limiting ring (302).

7. The steel structure building external formwork according to claim 1, characterized in that: A nut head (301) is provided at one end of the second pin rod (32) facing away from the first pin rod (31), and a limiting ring (302) is provided on the second pin rod (32). The second pin rod (32) is slidably mounted on the first positioning steel mold (1) through the nut head (301) and the limiting ring (302).

Citation Information

Patent Citations

  • External hanging formwork for steel structure building

    CN220705183U