Fabricated building pouring formwork structure

Abstract

The utility model relates to building pouring template technical field especially relates to a kind of assembly type building pouring template structure, including multiple template main body, still including the connecting handle for connecting adjacent two template main bodies, the through-hole that can be passed through for connecting handle is opened in the template main body, the bottom of the connecting handle is equipped with wedge transmission mechanism, the wedge transmission mechanism has the thickness of gradual change along the rotating direction of the connecting handle, when rotating the connecting handle, the wedge transmission mechanism can resist and touch at least one the template main body, the utility model is passed through wedge transmission mechanism, when rotating connecting handle, by means of wedge transmission mechanism, not only can quickly lock adjacent two template main bodies firmly, but also can pass through the thickness gradual change characteristics of wedge structure, make the force of mutual approaching of adjacent template main body, let the butt joint surface of template main body realize close adhesion.

Description

Technical Field

[0001] This utility model relates to the field of building casting formwork technology, and in particular to a prefabricated building casting formwork structure. Background Technology

[0002] Prefabricated building casting formwork is a temporary support structure used in the production of prefabricated components (such as precast beams, slabs, columns, wall panels, etc.) to shape concrete components, ensure dimensional accuracy, and withstand pouring pressure. Unlike traditional cast-in-place formwork, it mainly serves the factory prefabrication stage and needs to meet the characteristics of reusability, rapid assembly and disassembly, and high-precision molding. It is one of the core equipment for the industrialized production of prefabricated buildings. During the mold assembly process, adjacent side molds and end molds need to be quickly and reliably connected through locking devices to ensure the overall rigidity and sealing of the mold.

[0003] In existing prefabricated building casting formwork connection and locking devices, the fixing of adjacent formwork mostly relies on bolts, clips, etc. to connect adjacent formwork to limit the relative displacement of the formwork and achieve the locking function. However, it can only prevent the formwork from separating in the horizontal or vertical direction, but cannot actively apply a force to press the mating surfaces of the two formwork together. During the concrete pouring process, the formwork is prone to slight deformation under the pouring pressure, resulting in gaps at the mating surfaces, which in turn leads to problems such as grout leakage and surface defects of the components.

[0004] Based on the above situation, we propose a prefabricated building casting formwork structure to solve the above problems. Utility Model Content

[0005] This utility model provides a prefabricated building casting formwork structure to solve the problem in the prior art that gaps easily occur between adjacent formworks under the pressure of concrete pouring.

[0006] The technical problem solved by this utility model is achieved by the following technical solution: A prefabricated building casting formwork structure includes multiple formwork bodies and a connecting handle for connecting two adjacent formwork bodies. Each formwork body has a through hole through which the connecting handle passes. The bottom of the connecting handle is provided with a wedge-shaped transmission mechanism. The wedge-shaped transmission mechanism has a gradually changing thickness along the rotation direction of the connecting handle. When the connecting handle is rotated, the wedge-shaped transmission mechanism can abut against at least one of the formwork bodies and generate axial thrust through the gradual change in thickness, driving the two formwork bodies to move closer to each other and fit tightly together. The formwork body is also provided with a positioning mechanism for limiting the connection handle.

[0007] Preferably, the wedge-shaped transmission mechanism includes a first wedge block disposed on the connecting handle and a second wedge block disposed on the template body, wherein the contacting inclined surfaces of the first wedge block and the second wedge block are opposite to each other.

[0008] Preferably, it also includes a compression ring disposed on the connecting handle, which, when the wedge-shaped transmission mechanism and the compression ring cooperate to form a tight clamp between two adjacent template bodies.

[0009] Preferably, the positioning mechanism includes a sliding cavity formed on the template body and a positioning plate slidably connected inside the sliding cavity, and a spring is connected between the positioning plate and the sliding cavity.

[0010] Preferably, the ratio of the maximum height difference of the first wedge block to the maximum height difference of the second wedge block is in the range of 1:1.2-1:1.5.

[0011] Preferably, both the first wedge and the second wedge have a wear-resistant coating on their contact surfaces.

[0012] The beneficial effects of this utility model are: through the wedge transmission mechanism, when the connecting handle is rotated, the wedge transmission mechanism can not only quickly and firmly lock the two adjacent template bodies, but also, through the thickness gradient characteristics of the wedge structure, make the adjacent template bodies move closer to each other, so that the mating surfaces of the template bodies can be tightly fitted, thereby reducing the problem of grout leakage during concrete pouring and subsequent repair work. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure when two adjacent template bodies are separated in this utility model; Figure 2 This is a partial cross-sectional structural diagram of two adjacent template bodies when they are spliced ​​together in this utility model; Figure 3 This is a schematic diagram showing the installation position of the second wedge block in this utility model; Figure 4 This is a schematic diagram of the connecting handle in this utility model; Figure 5 This is a schematic diagram of the structure after multiple template bodies are spliced ​​together in this utility model.

[0015] In the figure, 1 is the template body; 2 is the connecting handle; 21 is the through hole; 3 is the first wedge block; 4 is the second wedge block; 5 is the extrusion ring; 6 is the sliding cavity; 61 is the positioning plate; and 62 is the spring. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0017] Reference Figures 1-5 As shown, a prefabricated building casting formwork structure includes multiple formwork bodies 1, wherein the formwork body 1 can be made of materials such as plastic steel, and also includes a connecting handle 2. A through hole 21 for the connecting handle 2 to pass through is provided on the formwork body 1. When two adjacent formwork bodies 1 are spliced, they are connected by inserting the connecting handle 2. A wedge-shaped transmission mechanism is provided at the bottom of the connecting handle 2, and the wedge-shaped transmission mechanism has a gradually changing thickness along the rotation direction of the connecting handle 2. When the connecting handle 2 is rotated, the wedge-shaped transmission mechanism can abut against at least one formwork body 1, and generate axial thrust through the gradually changing thickness, driving the two formwork bodies 1 to move closer to each other and fit tightly together. Specifically, the wedge-shaped transmission mechanism includes a first... A wedge block 3 and a second wedge block 4 are provided on the template body 1, with the contacting inclined surfaces of the first wedge block 3 and the second wedge block 4 facing each other. When the two template bodies 1 are spliced, the through holes 21 between them are opposite each other. Then, the connecting handle 2 is inserted through the through hole 21 and rotated, so that the first wedge block 3 rotates synchronously with the connecting handle 2. Its gradually thickened part is pressed against the reverse inclined surface of the second wedge block 4, generating an axial thrust along the docking direction of the template body 1. Under the action of the thrust, the docking surfaces of the two template bodies 1 gradually fit together until the maximum thickness of the first wedge block 3 and the second wedge block 4 completely abuts, so that the two template bodies 1 achieve a tighter connection. Then, the position of the connecting handle 2 can be locked by the positioning mechanism provided on the template body 1.

[0018] Furthermore, referring to Figure 4 As shown, a compression ring 5 is also provided on the connecting handle 2. After the connecting handle 2 is inserted into the through hole 21, the compression ring 5 will abut against the inner wall of the template body 1. When the first wedge block 3 abuts against the second wedge block 4, it will form a tight clamp between the two adjacent template bodies 1 through cooperation with the compression ring 5, so that the gap between the two adjacent template bodies 1 is minimized and the problem of grout leakage during pouring is reduced.

[0019] Reference Figure 2As shown, the positioning mechanism further includes a sliding cavity 6 formed on the template body 1 and a positioning plate 61 slidably connected inside the sliding cavity 6. A spring 62 is connected between the positioning plate 61 and the sliding cavity 6. When the connecting handle 2 is rotated, the positioning plate 61 is first pressed into the sliding cavity 6. When the connecting handle 2 drives the first wedge block 3 and the second wedge block 4 to abut, the positioning plate 61 is released. Under the action of the spring 62, the positioning plate 61 moves upward, forming a limit on the connecting handle 2 on one side. At the same time, the first wedge block 3 and the second wedge block 4 remain in abutting state.

[0020] Furthermore, the ratio of the maximum height difference between the first wedge block 3 and the second wedge block 4 is in the range of 1:1.2-1:1.5. This ensures that during the rotation of the connecting handle 2, the contact slopes of the first wedge block 3 and the second wedge block 4 change with gradient-adapted height differences, so that the axial thrust increases continuously and steadily with the rotation angle. This avoids the sudden increase in clamping force or premature jamming caused by the mismatch in the rate of change of height difference. It also ensures that the mating surfaces of the two adjacent template bodies 1 can form sufficient fitting pressure to meet the sealing requirements. In addition, the gradual change in force value makes it easy for construction personnel to perceive the degree of tightening, preventing structural damage caused by excessive operation.

[0021] Furthermore, a wear-resistant coating is provided on the contacting inclined surfaces of the first wedge block 3 and the second wedge block 4. The wear-resistant coating can be made of materials such as ceramic particle coating, tungsten carbide coating or polytetrafluoroethylene composite coating to reduce the friction coefficient and wear rate of the contact surface between the two, and avoid the decrease in the accuracy of the wedge inclined surface due to long-term repeated friction.

[0022] 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 building formwork structure comprising a plurality of formwork bodies (1), characterized in that, It also includes a connecting handle (2) for connecting two adjacent template bodies (1). The template body (1) has a through hole (21) through which the connecting handle (2) can pass. The bottom of the connecting handle (2) is provided with a wedge-shaped transmission mechanism. The wedge-shaped transmission mechanism has a gradually changing thickness along the rotation direction of the connecting handle (2). When the connecting handle (2) is rotated, the wedge-shaped transmission mechanism can abut against at least one of the template bodies (1) and generate axial thrust through the gradually changing thickness, driving the two template bodies (1) to approach each other and fit tightly together. The template body (1) is also provided with a positioning mechanism for limiting the connecting handle (2).

2. The prefabricated building pouring template structure according to claim 1, characterized in that, The wedge transmission mechanism includes a first wedge block (3) on the connecting handle (2) and a second wedge block (4) on the template body (1), and the contacting slopes of the first wedge block (3) and the second wedge block (4) are opposite to each other.

3. The prefabricated building pouring template structure according to claim 1, characterized in that, It also includes a compression ring (5) provided on the connecting handle (2), which, when the wedge-shaped transmission mechanism and the compression ring (5) cooperate to form a tight clamp between two adjacent template bodies (1).

4. The prefabricated building pouring template structure according to claim 1, characterized in that, The positioning mechanism includes a sliding cavity (6) opened on the template body (1) and a positioning plate (61) slidably connected inside the sliding cavity (6). A spring (62) is connected between the positioning plate (61) and the sliding cavity (6).

5. The prefabricated building pouring template structure according to claim 2, characterized in that, The ratio of the maximum height difference of the first wedge block (3) to the maximum height difference of the second wedge block is in the range of 1:1.2-1:1.

5.

6. The prefabricated building pouring template structure according to claim 2, characterized in that, The first wedge (3) and the second wedge (4) are both provided with wear-resistant coatings on their contact slopes.

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