A pin-type template early dismantling system support head
The pin-key type early-stripping support system solves the problem that traditional support frames can only be removed after the entire structure has reached sufficient strength, enabling rapid turnover of the formwork and support system and reducing construction costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FOURTH CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional full-span scaffolding in large-span structures can only be dismantled after the entire structure has reached 100% strength, which prevents the formwork and support system from being quickly reused and increases construction costs.
The early removal system of the formwork adopts a pin-key type support head. By arranging the formwork and adjusting the pins, the early removal of some formwork and support system can be achieved. The early removal support head continues to maintain the structural stability as an independent support.
It enables rapid turnover of templates and support systems, reduces material input, increases turnover rate, meets the construction requirements for early demolition, and reduces construction costs.
Smart Images

Figure CN224514727U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of early release support head technology, specifically a pin-key type template early release system support head. Background Technology
[0002] Traditional full-steel scaffolding for construction requires the entire scaffold to be dismantled only after the superstructure has reached the specified strength. If the slab span is over 8 meters, the structure must reach 100% strength before the support system can be dismantled. Neither the formwork nor the scaffolding can be quickly reused, requiring a large amount of reusable materials on site, increasing construction costs. Early stripping formwork systems were included in the 10 new technologies in the construction industry in 2010. Although there are various types of early stripping systems, they all aim to achieve early formwork removal, accelerate formwork turnover, and reduce the amount of formwork needed. Early stripping systems are suitable for the construction of roof slabs and beams in industrial and civil buildings, and the economic benefits are even more significant for structures with larger spans.
[0003] Therefore, a pin-key type early stripping support head for formwork is proposed. The disc-lock type early stripping support system is a novel support system characterized by flexible layout, safety and reliability, convenient and quick construction. The key to the disc-lock type early stripping support system is the pin-key type early stripping support head. This early stripping support head is placed on the disc-lock uprights. During formwork erection, it can form a full-span support system together with other uprights. During formwork removal, by adjusting the pins, the main and secondary ribs and formwork of the large surface can be removed in advance. At this time, the early stripping support head can act as an independent support, continuing to maintain the strength and stability of the upper slab surface.
[0004] The principle of this early-release support head is similar to that of the aluminum film pole support head. Utility Model Content
[0005] Technical problem solved: In traditional full-span scaffolding, the uprights, main and secondary supports, and prefabricated formwork are all integrated. Lowering a portion of the top support cannot remove the formwork and support system in a localized area; the entire system must be dismantled. However, by using a pin-key type early-stripping formwork support system, the support heads are arranged in rows and columns according to the formwork layout. By lowering the pins, the main and secondary supports placed on the pins can be removed earlier, allowing the formwork before the early-stripping support head to also be removed, thus meeting the requirements for early stripping of the formwork support system.
[0006] Fast material turnover: The main feature of the early dismantling system is "early". Early dismantling of the formwork can accelerate the turnover of materials and reduce the overall investment in the formwork support system. By accelerating the turnover of materials, the construction requirements can be met.
[0007] To address the shortcomings of existing technologies, this utility model provides a pin-type template early disassembly system support head to solve the aforementioned data cable storage problem:
[0008] Technical solution
[0009] To achieve the above-mentioned objective, this utility model provides the following technical solution: a pin-type template early dismantling system support head, including a disc buckle upright, a screw rod installed inside the disc buckle upright, a pin key provided on the upper part of the screw rod, a support beam movably connected to the top of the pin key, and a locking block provided below the pin key.
[0010] Furthermore, a support head upright is fixedly installed at the top of the lead screw, and the support head upright is cylindrical.
[0011] Furthermore, a top support is provided at the top of the support head upright.
[0012] Furthermore, the number of support beams is two, and the two support beams are of the same size.
[0013] Furthermore, a screw is movably installed inside the support beam, and a nut is threaded onto the screw.
[0014] Furthermore, the key has a slot.
[0015] Furthermore, the slots formed between the support beams must be larger than the size of the locking block.
[0016] Beneficial effects
[0017] Compared with the prior art, this utility model provides a pin-key type template early dismantling system support head, which has the following beneficial effects:
[0018] 1. A new type of pin-key early-stripping support head is adopted, which directly supports the floor slab at the top. By pre-detailing the formwork and setting formwork strips at certain intervals, it is used for concrete strength support. This not only meets the support stress requirements, but also meets the conditions for early removal of large-area formwork.
[0019] 2. Fast Material Turnover: The main characteristic of the early formwork removal system is "early." Early removal of formwork accelerates the turnover of materials, reducing the overall investment in the formwork support system. This faster material turnover meets construction requirements. By fully utilizing the time difference, the system achieves early removal of the bottom formwork and its support system, accelerating formwork turnover, reducing formwork investment, and increasing the turnover rate. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a side view of the structure of this utility model;
[0022] Figure 3 This is a cross-sectional view of the top of the present invention;
[0023] Figure 4This is a cross-sectional structural diagram of the support beam of this utility model.
[0024] The attached figures are labeled as follows:
[0025] 1. Top support; 2. Support beam; 3. Pin; 4. Adjusting nut; 5. Screw; 6. Disc buckle upright; 7. Slot; 8. Support head upright; 9. Screw; 10. Nut; 11. Locking block; Detailed Implementation
[0026] To more clearly illustrate the overall concept of this utility model, a detailed description is provided below with reference to the accompanying drawings.
[0027] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.
[0031] Please see Figures 1-3 This utility model proposes a pin-key type early dismantling support head for templates. During use, a screw rod 5 is internally sleeved on the disc-lock upright 6. An adjusting nut 4 is located below the screw rod 5, and a locking block 11 is sleeved on the upper part of the screw rod 5. A pin 3 is located above the locking block 11, and a detachable support beam 2 is movably connected to the top of the pin 3. Simultaneously, a support head upright 8 is fixedly connected to the top of the screw rod 5, and a top support 1 is located at the top of the support head upright 8. The pin-key type early dismantling support head is the key to the early dismantling system. It is assembled by welding different castings, screw rod 5, top support 1, and support beam 2 onto a tooling fixture. The large screw rod 4 at the lower part of the early dismantling column head has an adjustable elevation function, serving the function of a regular adjustable top support 1. The middle support column has an early dismantling function. The upper support head upright 8 and top support 1 can be used with steel ribs and templates of different specifications.
[0032] The upper support head upright 8 and the top support 1 early-release support head screw 5 are inserted into the tube of the disc buckle upright 6 to form the template early-release bracket. The steel rib is placed on the early-release column head support beam 2, and the template is laid on it to form a new early-release and quick-release system.
[0033] The basic principle of early formwork removal technology is to artificially reduce the structural span during the construction phase, thereby lowering its internal forces and enabling early formwork removal without compromising structural safety. This achieves the economic and social benefits of early formwork removal. The early formwork removal support system employs a new type of pin-key early removal support head. The top support 1 directly supports the floor slab. Through pre-detailed formwork design, formwork strips are installed at certain intervals, with early removal support heads positioned below. The spacing between support heads meets the requirements for independent support. Large-area formwork uses a standard disc-lock support system. During formwork removal, by sequentially striking the pins 3 on the support head to the right, the upper support beam 2 falls and passes through the locking block 11, allowing the primary and secondary ribs of the slab bottom placed above the support beam 2 to be removed in advance. This enables the early removal of most of the bottom formwork and support poles. The horizontal support and formwork removal rate can reach 80%. By fully utilizing the time difference, early removal of the bottom formwork and its support system accelerates formwork turnover and reduces formwork investment. Meanwhile, a screw rod 9 is installed inside the support beam 2, and a nut 10 is installed at one end of the screw rod 9. By disassembling the screw rod 9 and the nut 10, the support beam 2 can be disassembled easily, so that everything except the plate strip template and support system can be removed during demolding.
[0034] Construction Process: The key node of the early stripping construction system is the new pin-key type support head. The formwork under the slab strip is replaced with an early stripping head according to the detailed design. A support beam 2 is installed below the early stripping head to hold the keel of the large-area support system. Before construction, the layout needs to be planned according to the actual project conditions. The support formwork is divided into whole slabs and post-removal slab strips to meet the requirements of stress and support safety. An integrated construction system is formed before concrete pouring. During demolding, everything except the slab strip formwork and support system can be removed. A new type of pin-key type early stripping support head is used, with the top support directly supporting the floor slab. Through pre-detailed formwork design, slab strips are set at certain intervals for concrete strength support, which not only meets the support stress requirements but also allows for early removal of the large-area formwork.
[0035] Simple construction: The key to the early stripping system is the early stripping head. Some of the upright U-shaped supports are replaced with early stripping heads according to the detailed template design, thus achieving the conditions for early stripping. The early stripping head and U-shaped supports are of a universal standard and can be used interchangeably. The early stripping head is based on the U-shaped support and meets the usage requirements without complicated operations.
[0036] Rapid Material Turnover: The main characteristic of the early formwork removal system is "early." Early removal of formwork accelerates the turnover of materials, reducing the overall investment in the formwork support system. This rapid material turnover meets construction requirements. By fully utilizing the time difference, early removal of the bottom formwork and its support system accelerates formwork turnover, reduces formwork investment, and increases the turnover rate.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pin key (3) type formwork early dismantling system support head, comprising a disc buckle vertical rod (6), characterized in that: The disc buckle upright (6) is equipped with a screw rod (5), and a key (3) is provided on the upper part of the screw rod (5). A support beam (2) is movably connected to the top of the key (3), and a locking block (11) is provided below the key (3).
2. A pin key (3) type formwork early removal system support head according to claim 1, characterized in that: The top end of the lead screw (5) is fixedly installed with a support head rod (8), which is cylindrical.
3. A pin key (3) type formwork early removal system support head according to claim 2, characterized in that: The top of the support head upright (8) is provided with a top support (1).
4. The pin-key (3) type template early dismantling system support head according to claim 3, characterized in that: The number of the support beams (2) is two, and the two support beams (2) are the same size.
5. A pin key (3) type formwork early removal system support head according to claim 1, characterized in that: The internal structure of the support beam (2) is equipped with a screw (9), and the screw (9) is threaded with a nut (10).
6. A pin key (3) type formwork early removal system support head according to claim 1, characterized in that: The key (3) has a slot (7).
7. A pin key (3) type formwork early removal system support head according to claim 2, characterized in that: The slot formed between the support beams (2) must be larger than the size of the card block (11).