A socket-type template connecting screw

Abstract

The utility model discloses a socket and spigot type template connecting screw rod belongs to building construction technical field. The template connecting screw rod includes screw rod main part, and the screw rod main part is by one middle section and at least two elongated sections, and the middle section and elongated section are all by two half circle socket inserts and are formed by socket and spigot cooperation, and the middle section is connected with the elongated section through the connecting sleeve with internal thread and is screwed, and the adjacent elongated sections are connected through the half circle socket inserts and are staggered socket and spigot. The elongated section outside is provided with external thread and is matched with nut. The middle section outer surface is provided with a plurality of circular protrusions, and is provided with the water stop plate in the inside. Through setting detachable elongated section and sleeve connecting structure, the screw rod length can be flexibly adjusted according to the construction needs, and the elongated section can be removed and recycled after construction, thereby reducing material consumption, improving construction adaptability and economy.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a socket-type template connecting screw. Background Technology

[0002] In the construction of cast-in-place concrete structures, formwork is typically secured by tie rods on both sides to ensure its stability during concrete pouring and vibration, thereby guaranteeing the quality of the final structure. Currently, the formwork tie rod structure widely used in engineering is relatively mature, with simple construction techniques, and can meet the basic requirements for formwork support strength and stability in general building construction. Therefore, it has been widely applied in building construction, municipal engineering, and underground projects.

[0003] However, existing formwork connecting bolts still have significant shortcomings in practical engineering applications. Most existing formwork connecting bolts use a solid, integral structure, resulting in high steel consumption and material costs. Furthermore, the length of existing formwork connecting bolts is usually fixed, making it difficult to adapt to changes in formwork spacing in different construction areas. This necessitates preparing bolts of various lengths on-site, increasing inconvenience for construction management and use. The middle section of existing formwork connecting bolts is often a smooth cylindrical surface, resulting in weak mechanical interlocking with the concrete. This makes them prone to relative slippage during concrete pouring and vibration, affecting the overall stability of the formwork system.

[0004] Based on the shortcomings of existing formwork connecting bolts in terms of material utilization, length adaptability, and bonding performance with concrete, it is necessary to improve the structural form of formwork connecting bolts and provide a new type of formwork connecting bolt with reasonable structure, less steel consumption, flexible length adjustment, and enhanced bonding performance with concrete to better meet the actual needs of engineering construction. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a socket-type template connecting screw.

[0006] To achieve the above technical objectives, this utility model adopts the following technical solution: A socket-type template connecting screw is proposed, comprising: a screw body, the screw body including a middle section and at least two extended sections; the middle section is composed of a first semi-circular socket piece and a second semi-circular socket piece through a socketing mechanism; the extended sections are composed of a third semi-circular socket piece and a fourth semi-circular socket piece through a socketing mechanism; one end of the middle section is threadedly connected to one end of the extended sections via a connecting sleeve with internal threads. The outer wall of the extended sections is provided with external threads, and the extended sections are fixed by matching nuts.

[0007] Furthermore, the outer surface of the intermediate section is provided with multiple circular protrusions at intervals along the axial direction to enhance the mechanical interlocking effect between the intermediate section and the concrete, and a waterstop plate is provided on the inner side of both the first semicircular socket plate and the second semicircular socket plate.

[0008] Furthermore, the number of elongated sections can be increased according to the length requirements of the screw body. Adjacent elongated sections are connected by an alternating insertion method of their third and fourth semicircular socket plates to form an axially continuous socket structure.

[0009] Furthermore, the connecting sleeve is a hollow cylindrical structure with internal threads on its inner wall, and external threads matching the internal threads at the ends of the middle section and the extended section.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model adopts a hollow tubular structure and a screw body formed by splicing semi-circular tubular socket plates to replace the original solid steel connecting material, which can effectively reduce the amount of steel used, reduce material consumption and engineering costs.

[0011] 2. This utility model has multiple circular protrusions on the outer surface of the middle section of the screw, which can significantly enhance the bonding force and mechanical interlocking effect between the screw and the concrete.

[0012] 3. This utility model divides the screw body into a middle section and an extension section. The length of the middle section corresponds to the template spacing and is permanently retained. The extension section can be flexibly combined and connected through a socket structure, allowing the screw length to be continuously adjusted according to construction needs. After construction is completed, the extension section can be pulled out and reused, reducing component waste. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a socket-type template connecting screw. Figure 2 This is a schematic diagram of multiple extended sections of a socket-type template connecting screw. Figure 3 This is a cross-sectional schematic diagram of a socket-type template connecting screw. Figure 4 A schematic diagram of the socket connection of the extended section of a socket-type template connecting screw. Figure 5 This is a schematic diagram of the middle section of a socket-type template connecting screw. Figure 6 This is a construction rendering of a socket-type formwork connecting bolt. In the diagram: 1-Elongated section, 2-Nut, 3-Connecting sleeve, 4-Circular protrusion, 5-Intermediate section, 6-Waterstop plate, 7-First semi-circular socket plate, 8-Second semi-circular socket plate, 9-Third semi-circular socket plate, 10-Fourth semi-circular socket plate, 11-Formwork, 12-Support, 13-W-shaped clip Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: In this solution, to better explain the structural composition and connection method of the socket-type template connecting screw involved in this utility model, the screw body is described below with reference to the accompanying drawings. Reference Figure 1 , Figure 2 A socket-type formwork connecting screw includes a screw body, which consists of a middle section 5 and at least two extension sections 1. The middle section 5 is used between two side formwork panels, its length corresponding to the spacing between the formwork panels, and is permanently retained inside the concrete after pouring. The extension sections 1 are used to connect the formwork during construction and can be removed and reused after construction is completed.

[0016] In this solution, to better explain the structural composition and connection method of the socket-type template connecting screw involved in this utility model, the socket connection relationships between intermediate sections and between extended sections are described below with reference to the accompanying drawings. (Reference) Figure 3 , Figure 4 , Figure 5 Both the intermediate section 5 and the extended section 1 are tubular structures, and each is formed by the insertion and engagement of two semi-circular tubular socket pieces separated along the axial direction. Specifically, the intermediate section 5 is formed by the first semi-circular socket piece 7 and the second semi-circular socket piece 8 being arranged opposite each other and connected in an insertion manner; referring to the figure, the extended section 1 is formed by the third semi-circular tubular socket piece 9 and the fourth semi-circular tubular socket piece 10 being arranged opposite each other and connected in an insertion manner. The opposite ends of each semi-circular socket piece are provided with mutually matching insertion structures, and a stable insertion is achieved through the cooperation of the protruding structure and the groove structure.

[0017] In this solution, to better explain the structural composition and connection method of the socket-type template connecting screw involved in this utility model, the socket connection relationship between the intermediate section and the extension section is described below with reference to the accompanying drawings. (Reference) Figure 3At least one end of the intermediate section 5 is threadedly connected to one end of the elongated section 1 via a connecting sleeve with internal threads. The connecting sleeve is a hollow cylindrical structure with internal threads on its inner wall, and the ends of the intermediate section and the elongated section are provided with external threads that match the internal threads. The ends of the intermediate section 5 and the elongated section 1 are connected by screwing, thereby achieving axial positioning and initial fixation of the two.

[0018] In this solution, to better explain the structural composition and connection method of the socket-type template connecting screw involved in this utility model, the connection between the nut and the elongated section is described below with reference to the accompanying drawings. The outer wall of the elongated section 1 is provided with external threads, and a nut 2 that mates with the external threads is disposed on its exterior. When the nut 2 is tightened axially, a radial clamping force is applied to the third semi-circular tubular socket 9 and the fourth semi-circular tubular socket 10 in the elongated section 1, making the two semi-circular tubular sockets fit more tightly together.

[0019] In this design, to better explain the structural composition and connection method of the socket-type template connecting screw involved in this utility model, the circular protrusion 4 in the middle section will be described below with reference to the accompanying drawings. (Reference) Figure 3 The outer surface of the intermediate section 5 is provided with a plurality of annular circular protrusions 4 spaced along the axial direction. During the concrete pouring and vibration process, the circular protrusions 4 can form an effective mechanical interlocking effect with the concrete, enhancing the connection effect of the intermediate section 5 in the concrete.

[0020] In this solution, to better explain the structural composition and connection method of the socket-type template connecting screw involved in this utility model, the waterstop plate 6 will be described below with reference to the accompanying drawings. (Reference) Figure 3 A waterstop plate 6 is installed inside the cavity of the intermediate section 5. The waterstop plate 6 extends radially and is fixed to the inner wall of the intermediate section 5. When concrete is poured into the cavity of the intermediate section 5, the waterstop plate 6 can separate the concrete inside the cavity and block the flow of slurry and water along the screw axis. After the concrete solidifies, the waterstop plate 6 and the concrete inside the cavity form an embedded structure, thereby improving the seepage prevention performance and overall stability of the intermediate section 5.

[0021] In this solution, to better explain the structural composition and connection method of the socket-type template connecting screw involved in this utility model, the socket structure between multiple extension sections is described below with reference to the accompanying drawings. Multiple extension sections 1 can be sequentially socketed along the axial direction through their respective socket structures, forming an interlaced socket connection. This allows the overall length of the template connecting screw to be continuously adjusted according to the actual template spacing, meeting the usage requirements under different construction conditions.

[0022] In practice, the template connecting bolts should be installed according to the following steps: Step A: Based on the spacing between the templates 11, select the first semicircular insert 7 and the second semicircular insert 8 of the appropriate length, combine them to form the middle section 5, and place the middle section 5 between the two templates 11. Step B: According to construction needs, select the third semicircular socket 9 and the fourth semicircular socket 10 to form one or more elongated sections 1; when multiple elongated sections 1 need to be set, adjacent elongated sections 1 are connected in sequence by the staggered socketing of the third semicircular socket 9 and the fourth semicircular socket 10, and the outermost elongated section 1 is connected to the middle section 5 by the connecting sleeve 3. Step C: Screw nuts 2 onto the staggered sockets and the mountain-shaped clips of the elongated section 1, and use the mountain-shaped clips 13 to pull and fix the template 11, thereby completing the overall installation of the template connecting bolts; Step D: After the formwork system is installed, concrete is poured. After the concrete solidifies, the middle section 5 is permanently left inside the concrete. The elongated section 1 located outside the formwork 11 can be dismantled and recycled section by section along its interlocking insertion direction.

[0023] Through the above structure and construction method, the socket-type template connecting bolt of this utility model not only meets the tensile strength requirements of the template, but also achieves the technical effects of reduced material consumption, reliable connection, flexible length adjustment, and reusable components.

Claims

1. A socket-type template connecting screw, characterized in that, include: The screw body includes an intermediate section (5) and at least two extended sections (1); the intermediate section (5) is composed of a first semi-circular socket plate (7) and a second semi-circular socket plate (8) by means of socketing; the extended section (1) is composed of a third semi-circular socket plate (9) and a fourth semi-circular socket plate (10) by means of socketing; one end of the intermediate section (5) is threadedly connected to one end of the extended section (1) by a connecting sleeve (3) with internal threads.

2. The socket-type template connecting screw according to claim 1, characterized in that, The outer wall of the elongated section (1) is provided with external threads, and the elongated section (1) is fixed by a matching nut (2).

3. The socket-type template connecting screw according to claim 1, characterized in that, The outer surface of the intermediate section (5) is provided with reinforced intermediate parts at intervals along the axial direction, and the reinforced intermediate parts are provided with multiple circular protrusions (4) that can mechanically interlock with the concrete.

4. The socket-type template connecting screw according to claim 1, characterized in that, A waterstop plate (6) is provided on the inner side of both the first semicircular socket (7) and the second semicircular socket (8).

5. The socket-type template connecting screw according to claim 1, characterized in that, The number of elongated sections (1) increases according to the length of the screw body. Adjacent elongated sections (1) are connected by the staggered insertion of their third semicircular socket (9) and fourth semicircular socket (10).

6. The socket-type template connecting screw according to claim 1, characterized in that, The connecting sleeve (3) is a hollow cylindrical structure. The inner wall of the connecting sleeve (3) is provided with internal threads, and the ends of the middle section (5) and the elongated section (1) are provided with external threads that match the internal threads.

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