A prefabricated formwork for building construction

Abstract

The utility model discloses a kind of assembly type formworks for building construction, including formwork body and prop, the prop is used to limit and support to the formwork body, clamping groove is opened in the length direction one side wall of the formwork body, and the other side wall is integrally formed with the convex strip matched with the clamping groove, the convex strip can be inserted into the clamping groove of adjacent formwork body, the quick splicing between formwork is realized.In the utility model, when the worker overturns connecting mechanism to install prop, the action will automatically trigger locking mechanism to enter working preparation state, and the two key steps of formwork support and joint locking are fused into one smooth and coherent operation, which not only greatly simplifies the process, improves the assembly efficiency, but also significantly reduces the safety risk caused by step omission.

Description

Technical Field

[0001] This invention relates to the field of construction formwork technology, specifically to a prefabricated formwork for building construction. Background Technology

[0002] In the construction industry, formwork is a crucial temporary support system. Its fundamental function is to provide a standardized spatial model for concrete structures or components based on engineering design drawings, ensuring that the concrete accurately forms according to predetermined positions and geometric dimensions during pouring, and bearing the weight of the formwork itself as well as various external loads from concrete, personnel, equipment, etc. Traditional formwork uses a variety of materials, commonly including wood, steel, and plastics. Each material has its own characteristics in terms of performance, economy, and construction applicability, and also has certain limitations. For example, wooden formwork has advantages such as low cost, flexible processing, and strong on-site adaptability, but it also generally suffers from limited reuse, flammability, and susceptibility to moisture and deformation. Plastic formwork, on the other hand, is lightweight, has a smooth surface, and is easy to demold, but its coefficient of thermal expansion and contraction is large, resulting in insufficient dimensional stability in environments with significant temperature differences, and its impact resistance is weak, making it easily damaged during handling and use.

[0003] Among the existing material systems, steel formwork is widely used in medium and large-scale projects due to its high strength, rigidity, and high turnover rate. However, the commonly used steel formwork systems still have certain shortcomings in their assembly structure. Adjacent formwork units are mostly connected and fixed by bolts, and various support components, reinforcing ribs, or connecting lugs are often welded or installed on the outer surface of the formwork, resulting in an uneven outer contour and many protruding components. This uneven surface not only leads to poor stability and large space occupation during stacking, but also makes it easy for components to collide and deform during transportation. Furthermore, it is not conducive to standardized stacking and efficient logistics transfer, increasing the difficulty of on-site management and secondary handling. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing steel formwork systems, which are currently widely used in terms of assembly structure. Adjacent formwork units often rely on bolts for connection and fixation, and various supports, reinforcing ribs, or connecting ear plates are frequently welded or installed on the outer surface of the formwork, resulting in an uneven outer contour and numerous protruding components. This uneven surface not only leads to poor stability and large space occupation during stacking but also makes components prone to collision and deformation during transportation. Furthermore, it hinders standardized stacking and efficient logistics transfer, increasing the difficulty of on-site management and secondary handling. This invention provides a prefabricated formwork for building construction. When workers flip the connecting mechanism to install supports, this action automatically triggers the locking mechanism to enter a ready-to-work state, integrating the two key steps of formwork support and joint locking into a smooth and continuous operation. This not only significantly simplifies the process and improves assembly efficiency but also significantly reduces safety risks caused by missed steps. Regarding locking reliability, the mechanism drives the locking block to precisely embed into the locking groove through a threaded rod, forming a rigid mechanical interlock. This positive constraint can effectively resist the vibration and lateral pressure during concrete pouring, fundamentally ensuring tight joints, eliminating the risk of grout leakage, and providing a solid guarantee for the forming accuracy and appearance quality of concrete structures.

[0005] Secondly, the design of the reserved slot embeds the connecting and locking components into the template body, avoiding the loss and damage of external accessories, making the template body flat and facilitating the stacking and transportation of the template body.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a prefabricated formwork for building construction, comprising a formwork body and a support column, wherein the support column is used to limit and support the formwork body;

[0007] A slot is provided on one side wall along the length direction of the template body, and a protrusion is integrally formed on the other side wall to cooperate with the slot. The protrusion can be inserted into the slot of the adjacent template body to realize the quick splicing between templates.

[0008] Specifically, the matching design of the slots and convex strips enables guidance and initial positioning of the splicing between the template bodies, making the splicing operation intuitive and quick. Initial alignment can be completed without additional tools, significantly improving the efficiency and splicing accuracy of the template body assembly and ensuring the flatness of the seams.

[0009] A reserved slot communicating with the card slot is also provided on the front surface of the template body. A connecting mechanism and a locking mechanism are provided in the reserved slot. In use, the connecting mechanism is flipped out of the reserved slot and connected to the support column. During this process, the connecting mechanism synchronously drives the locking mechanism to position and lock the protrusion inserted into the card slot, thereby realizing the connection and fixation between two adjacent template bodies.

[0010] Specifically, the design of the reserved slot embeds the connecting and locking functional components into the template body, which avoids the loss and damage of external accessories, makes the template body flat, facilitates the stacking and transportation of the template body, and the fact that the connecting and locking functional components are all set in the template body can prevent the loss and damage of external accessories.

[0011] Preferably, the connecting mechanism includes a rotating seat, which is rotatably connected to the reserved slot via a rotating shaft. A connecting shaft is rotatably connected to the rotating seat, and a first arc-shaped seat is fixed to the other end of the connecting shaft. A second arc-shaped seat is fixed to the first arc-shaped seat via fixing bolts. Together, they form an openable and closable annular clamping structure. Specifically, the connecting mechanism adopts a multi-degree-of-freedom rotation design. The rotating seat provides horizontal swing adjustment, and the connecting shaft provides vertical angle adjustment, allowing the mechanism to flexibly adapt to the actual position and angle of the support column, facilitating connection and fixation with the support column. Furthermore, the first and second arc-shaped seats form an openable and closable structure via bolts.

[0012] Preferably, the locking mechanism includes a locking seat abutting against one side wall of the rotating seat. The locking seat has a boss at one end near the protrusion. The lower surface of the boss abuts against the upper surface of the protrusion. The upper and lower surfaces of the boss are respectively provided with a first groove and a second groove. A threaded rod is threadedly connected in the first groove. The bottom end of the threaded rod extends into the second groove and is rotatably connected to a locking block.

[0013] Preferably, the protruding strip has a locking groove for use with the locking block.

[0014] Preferably, the reserved groove has sliding grooves on both sides along its length, and a positioning shaft is inserted into the sliding groove. Slider blocks are symmetrically welded on both sides of the locking seat, and the sliders are sleeved on the positioning shaft.

[0015] Preferably, a spring is sleeved on the positioning shaft, with one end of the spring fixedly connected to a slider and the other end of the spring fixedly connected to the inner wall of the groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This prefabricated building formwork system automatically triggers a locking mechanism to enter a ready-to-work state when workers flip the connecting mechanism to install the supports. This integrates the two key steps of formwork support and joint locking into a smooth and continuous operation. This not only significantly simplifies the process and improves assembly efficiency but also significantly reduces safety risks caused by missed steps. Regarding locking reliability, the mechanism uses a threaded rod to drive the locking block to precisely embed into the locking groove, forming a rigid mechanical interlock. This positive constraint effectively resists vibration and lateral pressure during concrete pouring, fundamentally ensuring tight joints, eliminating the risk of grout leakage, and providing a solid guarantee for the forming accuracy and appearance quality of the concrete structure.

[0018] Secondly, the design of the reserved slot embeds the connecting and locking components into the template body, avoiding the loss and damage of external accessories, making the template body flat and facilitating the stacking and transportation of the template body. Attached Figure Description

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

[0020] Figure 2 This is a schematic diagram of the structure of the template body of this utility model. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the structure of the template body in this utility model. Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the connecting mechanism in this utility model;

[0023] Figure 5 This is a schematic diagram of the locking mechanism in this utility model.

[0024] Reference numerals: 1. Template body; 11. Slot; 12. Raised strip; 13. Reserved slot; 14. Connecting mechanism; 141. Rotating seat; 142. Rotating shaft; 143. Connecting shaft; 144. First arc-shaped seat; 145. Second arc-shaped seat; 15. Locking mechanism; 151. Locking seat; 152. Boss; 153. First groove; 154. Second groove; 155. Threaded rod; 156. Locking block; 157. Locking groove; 158. Slide groove; 159. Positioning shaft; 160. Slider; 161. Spring; 2. Support column. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This further illustrates the specific implementation method of the prefabricated formwork for building construction according to this utility model.

[0026] A prefabricated formwork for building construction includes a formwork body 1 and a support column 2, wherein the support column 2 is used to limit and support the formwork body 1.

[0027] A slot 11 is provided on one side wall along the length direction of the template body 1, and a protrusion 12 that cooperates with the slot 11 is integrally formed on the other side wall. The protrusion 12 can be inserted into the slot 11 of the adjacent template body 1 to realize the quick splicing between templates.

[0028] Specifically, the matching design of the slot 11 and the convex strip 12 realizes the guidance and initial positioning of the splicing between the template bodies 1, making the splicing operation intuitive and quick, and the initial alignment can be completed without additional tools, which significantly improves the efficiency and splicing accuracy of the template body 1 assembly and ensures the flatness of the splice seam.

[0029] A reserved slot 13 communicating with the slot 11 is also provided on the front surface of the template body 1. A connecting mechanism 14 and a locking mechanism 15 are provided in the reserved slot 13. When in use, the connecting mechanism 14 is flipped out of the reserved slot 13 and connected to the support column 2. During this process, the connecting mechanism 14 synchronously drives the locking mechanism 15 to position and lock the protrusion 12 inserted into the slot 11, thereby realizing the connection and fixation between two adjacent template bodies 1.

[0030] Specifically, the design of the reserved slot 13 embeds the connecting and locking functional components within the template body 1, preventing the loss or damage of external accessories, making the template body 1 flat, facilitating the stacking and transportation of the template body 1, and setting all the connecting and locking functional components within the template body 1, which can prevent the loss or damage of external accessories.

[0031] The connecting mechanism 14 includes a rotating seat 141, which is rotatably connected to the reserved slot 13 via a rotating shaft 142. A connecting shaft 143 is rotatably connected to the rotating seat 141, and a first arc-shaped seat 144 is fixed to the other end of the connecting shaft 143. A second arc-shaped seat 145 is fixed to the first arc-shaped seat 144 via a fixing bolt. Together, they form an openable and closable annular clamping structure.

[0032] Specifically, the connecting mechanism 14 adopts a multi-degree-of-freedom rotation design. The rotating seat 141 provides horizontal swing adjustment, and the connecting shaft 143 provides vertical angle adjustment, so that the mechanism can flexibly adapt to the actual position and angle of the support column 2, which facilitates the connection and fixation with the support column 2. The first arc-shaped seat 144 and the second arc-shaped seat 145 are connected by bolts to form an openable structure.

[0033] The working method of the connecting mechanism 14 is as follows: When it is necessary to connect the support column 2, the operator first flips the rotating seat 141 outward from the reserved slot 13 around the rotating shaft 142 to make it in a usable position. Then, by rotating the connecting shaft 143, the horizontal angle of the first arc-shaped seat 144 is adjusted. After the adjustment is completed, the first arc-shaped seat 144 and the second arc-shaped seat 145 are opened and placed in the corresponding parts of the support column 2, so that the support column 2 is covered in the annular space formed by the two. Then, the first arc-shaped seat 144 and the second arc-shaped seat 145 are fastened together with the fixing bolts, thereby forming a firm clamp on the support column 2.

[0034] The locking mechanism 15 includes a locking seat 151 that abuts against one side wall of the rotating seat 141. A boss 152 is provided at one end of the locking seat 151 near the protrusion 12. The lower surface of the boss 152 abuts against the upper surface of the protrusion 12. A first groove 153 and a second groove 154 are respectively provided on the upper and lower surfaces of the boss 152. A threaded rod 155 is threadedly connected in the first groove 153. The bottom end of the threaded rod 155 extends into the second groove 154 and is rotatably connected to a locking block 156.

[0035] The protruding strip 12 has a locking groove 157 for use with the locking block 156.

[0036] The reserved groove 13 has sliding grooves 158 on both sides along its length. A positioning shaft 159 is inserted into the sliding groove 158. Sliding blocks 160 are symmetrically welded on both sides of the locking seat 151. The sliding blocks 160 are sleeved on the positioning shaft 159.

[0037] A spring 161 is fitted on the positioning shaft 159. One end of the spring 161 is fixedly connected to the slider 160, and the other end of the spring 161 is fixedly connected to the inner wall of the slide groove 158.

[0038] Specifically, the locking mechanism 15 works as follows: when the rotating seat 141 of the connecting mechanism 14 flips outward from the reserved slot 13, its side wall pushes the locking seat 151 that abuts against it to move along the length direction of the reserved slot 13. The sliders 160 on both sides of the locking seat 151 slide along the positioning shaft 159 to provide smooth guidance. At the same time, the spring 161 is stretched and stores energy to provide restoring force for subsequent reset.

[0039] When the locking seat 151 moves, the boss 152 at its front end moves synchronously, so that the lower surface of the boss 152 keeps in contact with the upper surface of the ridge 12. Since the boss 152 has moved with the locking seat 151 to the top of the corresponding locking groove 157, the locking block 156 at its bottom end is driven to move downward by rotating the threaded rod 155, protruding from the second groove 154 and embedding into the pre-set locking groove 157 on the ridge 12. After the locking block 156 is fully embedded in the locking groove 157, a mechanical interlock is formed, which effectively restricts the vertical displacement and horizontal loosening of the ridge 12 in the slot 11, thereby achieving the fastening of adjacent templates at the joint.

[0040] When the template needs to be disassembled, first rotate the threaded rod 155 in the opposite direction to lift the locking block 156 so that it is disengaged from the locking groove 157. Then, flip the connecting mechanism 14 back into the reserved groove 13. At this time, the thrust of the rotating seat 141 on the locking seat 151 is released, the spring 161 releases its stored energy, and pushes the slider 160 and the locking seat 151 back to the initial position.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A prefabricated formwork for building construction, characterized in that, It includes a template body (1) and a support column (2), wherein the support column (2) is used to limit and support the template body (1); A slot (11) is provided on one side wall along the length direction of the template body (1), and a protrusion (12) that matches the slot (11) is integrally formed on the other side wall. The protrusion (12) can be inserted into the slot (11) of the adjacent template body (1) to realize the rapid splicing between templates. A reserved slot (13) communicating with the slot (11) is also provided on the front surface of the template body (1). A connecting mechanism (14) and a locking mechanism (15) are provided in the reserved slot (13). When in use, the connecting mechanism (14) is flipped out from the reserved slot (13) and connected to the support column (2). During this process, the connecting mechanism (14) synchronously drives the locking mechanism (15) to position and lock the protrusion (12) inserted into the slot (11), thereby realizing the connection and fixation between two adjacent template bodies (1).

2. The prefabricated formwork for building construction according to claim 1, characterized in that, The connecting mechanism (14) includes a rotating seat (141), which is rotatably connected to the reserved slot (13) via a rotating shaft (142). A connecting shaft (143) is rotatably connected to the rotating seat (141), and a first arc-shaped seat (144) is fixed to the other end of the connecting shaft (143). A second arc-shaped seat (145) is fixed to the first arc-shaped seat (144) via a fixing bolt. Together, they form an openable and closable ring clamping structure.

3. The prefabricated formwork for building construction according to claim 2, characterized in that, The locking mechanism (15) includes a locking seat (151) abutting against one side wall of the rotating seat (141). A boss (152) is provided at one end of the locking seat (151) near the protrusion (12). The lower surface of the boss (152) abuts against the upper surface of the protrusion (12). A first groove (153) and a second groove (154) are respectively provided on the upper and lower surfaces of the boss (152). A threaded rod (155) is threadedly connected in the first groove (153). The bottom end of the threaded rod (155) extends into the second groove (154) and is rotatably connected to a locking block (156).

4. The prefabricated formwork for building construction according to claim 3, characterized in that, The protrusion (12) is provided with a locking groove (157) for use with the locking block (156).

5. A prefabricated formwork for building construction according to claim 3, characterized in that, The reserved groove (13) has a sliding groove (158) on both sides along the length direction. A positioning shaft (159) is inserted into the sliding groove (158). Slider (160) is symmetrically welded on both sides of the locking seat (151). The slider (160) is sleeved on the positioning shaft (159).

6. A prefabricated formwork for building construction according to claim 5, characterized in that, A spring (161) is sleeved on the positioning shaft (159). One end of the spring (161) is fixedly connected to a slider (160), and the other end of the spring (161) is fixedly connected to the inner wall of the groove (158).

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