Buckle type connecting piece for formwork plate

Abstract

The utility model discloses a mold shell plate buckle type connecting piece which comprises an annular buckle (1) and an umbrella-shaped clamp (2), and the annular buckle (1) comprises a buckle ring supporting frame (11) and a buckle ring (12). The umbrella-shaped clamp (2) comprises a steel bar pull rod (21), a spring piece (22) and a spring (23). The annular button (1) is welded on the inner side of the first formwork plate (3), the umbrella-shaped clip (2) is welded on the inner side of the second formwork plate (7), the centers of the annular button (1) and the umbrella-shaped clip (2) are on the same straight line, and umbrella-shaped parts of the umbrella-shaped clip (2) are inserted into retaining rings (12) of the annular button (1) in a one-to-one correspondence manner to form a one-way stressed connecting piece, so that quick connection of the formwork plates is realized, and an internal cavity is formed. According to the connecting piece, the connecting process of the formwork plates is simplified, operation is easy, production efficiency is improved, meanwhile, the flatness of the outer surface of the formwork is guaranteed, holes do not need to be reserved in the formwork plates, and therefore the production quality of components is improved.

Description

Technical Field

[0001] The embodiments of the utility model belong to the technical field of building formwork, and more specifically, relate to a formwork plate snap-on connector. Background Art

[0002] Formwork prefabricated components are a type of component in prefabricated buildings. They consist of two parts: prefabricated formwork panels and post-poured concrete. The prefabricated formwork panels are processed in the prefabricated component factory and transported to the construction site for assembly. Concrete is poured into the cavities of the inner and outer blades to form an integral load-bearing component. In conventional prefabricated buildings, formwork panels can eliminate the need for formwork for pouring concrete during on-site construction, saving labor and materials, and solving problems such as the complex installation and construction of prefabricated shear walls and the difficulty of lifting and transportation. On the other hand, in the modular construction field of prefabricated buildings, formwork panels serve as the enclosure structure of the module units and also serve as the formwork for post-poured concrete. This tie system can avoid the impact of through-screws on decoration. Prefabricated formwork panels are generally composed of inner and outer blade concrete formwork panels, and the two formwork panels are connected by connectors. The accuracy of the formwork system directly affects the size and shape of the structure after the concrete is poured. Through connectors, the deformation and displacement of the formwork system can be effectively controlled, thereby ensuring construction quality. Therefore, connectors have become an indispensable and important component in construction. With the continuous development of construction technology, formwork plate snap-on connectors have come into being.

[0003] For example, the patent document with application number CN202122478874.6 discloses a new type of special buckle connector for building template support, including two building templates and a connecting frame located between the two building templates. The upper and lower parts of the left and right sides of the inner cavity of the connecting frame are fixedly connected with a slide plate. By rotating the rotating rod, the gear rotates, thereby causing the two tooth plates to move to the left and right sides respectively, causing the tooth plate to move into the first groove to squeeze the card block, causing the card block to move a little into the second groove. After the card slot moves to the first groove, the card block will move into the first groove again, thereby moving into the card slot, causing the connecting frame to be stuck with the two building templates. The two building templates can be installed well without any tools, and the two building templates can be installed quickly and conveniently, greatly improving the installation efficiency of the building template. However, this utility model device has many components, the connection technology is relatively cumbersome, and the assembly operation is complicated, which affects production efficiency. Utility Model Content

[0004] In response to the above defects or improvement needs of the prior art, the utility model provides a snap-on connector for formwork plates, which is achieved by welding annular buckles and umbrella-shaped clips on the inner sides of the formwork plates on both sides, and using them in conjunction with each other for one-to-one connection, thereby quickly connecting the formwork plates, achieving convenient installation and firm one-way connection, improving production efficiency, ensuring the flatness of the outer surface of the formwork, and improving the production quality of the components. At the same time, in modular buildings, the snap-on connection method can avoid damage to the module structure caused by the traditional through-tensioning method, and improve the integration of the decoration inside the module.

[0005] In order to achieve the above-mentioned purpose, the utility model discloses a mold shell plate snap-on connector, including a ring buckle and an umbrella-shaped clip, the ring buckle is welded on the inner side of the first mold shell plate, the umbrella-shaped clip is welded on the inner side of the second mold shell plate, and the center of the umbrella-shaped clip and the center of the ring buckle are on the same straight line, the umbrella-shaped part of the umbrella-shaped clip is inserted into the ring buckle to form a unidirectional force-bearing connector.

[0006] Furthermore, the annular buckle includes a buckle support frame and a buckle.

[0007] Furthermore, the buckle support frame is made of two smooth round steel bars with a diameter of 4 to 6 mm, and the bottom is bent at 90 degrees.

[0008] Furthermore, the buckle is a steel ring with a height of 10 to 20 mm, an outer diameter of 40 to 50 mm, and a wall thickness of 5 mm, and the side surface is welded to the two buckle support frames to form the annular buckle.

[0009] Furthermore, the umbrella-shaped clip includes a steel bar pull rod, a spring sheet and a spring.

[0010] Furthermore, the steel bar pull rod adopts a plain round steel bar, and the four spring leaves are welded to the head, and the four spring leaf heads are evenly welded in four directions of the steel bar pull rod, and the spring is used between the end of the spring leaf and the steel bar pull rod.

[0011] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0012] (1) The formwork plate snap-on connector of the present invention is constructed by welding a number of annular buckles on the inner side of the first formwork plate and welding an umbrella-shaped clip at a corresponding position on the inner side of the second formwork plate, ensuring that the center of the umbrella-shaped clip and the center of the annular buckle are on the same straight line. After the formwork plates are processed, the umbrella-shaped clips and the annular buckles are connected one by one, so that the inner and outer formwork plates are combined to form an internal cavity. After the subsequent concrete pouring, the whole is formed and the force is shared, which simplifies the process of connecting the formwork plates, is simple to operate, and improves production efficiency.

[0013] (2) The snap-on connector for the formwork plates of the present invention facilitates installation and enables the formwork plates to be tightly and firmly connected due to the one-way snap design. In addition, the connector can withstand the lateral pressure of the concrete on the formwork plates on both sides without coming loose during the concrete pouring process, thereby ensuring the connection quality of the formwork plates on both sides.

[0014] (3) The formwork plate snap-on connector of the present invention has an umbrella-shaped clip and an annular buckle welded to the inner side of the formwork plate, and there is no need to reserve holes on the formwork plate, thereby ensuring that there will be no leakage of concrete during the concrete pouring process, and ensuring the flatness of the outer surface of the formwork, thereby improving the production quality of the components.

[0015] (4) The snap-on connector for the formwork panels of the present invention is used in modular buildings to connect the formwork panels on both sides through the snap-on connection method of umbrella-shaped clips and ring buckles, thereby avoiding the traditional tension bolts that penetrate the formwork, reducing damage to the module structure, and ensuring the integrity of the module's internal decoration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a connection diagram of a snap-on connector for a mold shell plate according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the ring button structure of an embodiment of the utility model;

[0018] Figure 3 For the embodiment of the utility model Figure 2 Right side view of the ring buckle;

[0019] Figure 4 This is a schematic diagram of the umbrella-shaped clip structure of an embodiment of the utility model;

[0020] Figure 5 For the embodiment of the utility model Figure 4 Right view of the umbrella clip;

[0021] Figure 6 This is a schematic diagram of the snap-on connection of the formwork panels of the formwork shear wall according to an embodiment of the present utility model.

[0022] In all the drawings, the same figure marks represent the same technical features, specifically: 1-ring buckle, 11-buckle support frame, 12-buckle, 2-umbrella clip, 21-steel bar pull rod, 22-spring sheet, 23-spring, 3-first formwork plate, 4-embedded steel mesh, 5-steel bar, 6-embedded parts, 7-second formwork plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0026] In this patent, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0027] like Figure 1As shown, an embodiment of the utility model provides a formwork plate snap-on connector, including a ring buckle 1 and an umbrella-shaped clip 2, which are connected to form a connector that is subjected to unidirectional force. The ring buckle 1 is welded to the inner side of the first formwork plate 3, and the umbrella-shaped clip 2 is welded at a corresponding position on the inner side of the second formwork plate 4 to ensure that the center of the umbrella-shaped clip 2 and the center of the ring buckle 1 are on the same straight line. The umbrella-shaped clip 2 is connected to the ring buckle 1 one by one to form an internal cavity in combination with the first formwork plate to realize the connection of the formwork plates. The utility model connector is simple and convenient to operate, can improve production efficiency, and does not require reserved holes on the formwork plate, thereby ensuring the flatness of the outer surface of the formwork and improving the production quality of the components. In modular buildings, the snap-on connection method avoids penetrating the template, reduces damage to the module structure, and improves the quality of the interior decoration of the module.

[0028] like Figures 2-3 As shown, the ring buckle 1 includes a buckle support frame 11 and a buckle 12. The height of the buckle support frame 11 is determined by the thickness of the shear wall, so that the buckle 12 is 25 mm away from the inner side of the second formwork plate 7, which is convenient for installation and does not affect the pouring of concrete. The buckle support frame 11 is made of two smooth round steel bars with a diameter of 4 to 6 mm. The buckle support frame 11 is bent 90° at the bottom. The bending length is determined according to the spacing of the embedded steel mesh 4 in the prefabricated plate. After the two support frames 11 are bent, the distance between the two farthest points is greater than the distance of one grid of the embedded steel mesh 4 and can be welded to at least two steel bars in the embedded steel mesh 4 in the prefabricated formwork plate. The buckle 12 is a steel ring with a height of 10 to 20 mm, an outer diameter of 40 to 50 mm, and a wall thickness of 5 mm. The side is welded to the two support frames 111 to form the ring buckle 1.

[0029] like Figures 4-5 As shown, the umbrella-shaped clip 2 includes a steel bar pull rod 21, a spring sheet 22 and a spring 23. The steel bar pull rod 21 adopts a smooth round steel bar with a diameter of 6 mm. The bottom is welded and fixed to the embedded part 6 of the second formwork plate 7. Four spring sheets 22 are welded to the head, and the heads of the four spring sheets 22 are evenly welded in the four directions of the steel bar pull rod 21. The ends of the spring sheets 22 are connected to the steel bar pull rod 21 with the springs 23. In the natural state, the angle between the spring sheets 22 and the steel bar pull rod 21 is between 30° and 35°, and the spring 23 is in a stress-free state. The umbrella diameter is 50 to 60 mm (larger than the outer diameter of the buckle 12). The umbrella diameter is the distance between the outermost points of the two opposite spring sheets 22 when in a stress-free state. The length of the steel bar pull rod 21 and the length of the spring sheet 22 are determined according to the selected size of the buckle 12, such as Figure 1As shown, when the buckle is connected, the spring leaf is unfolded at an angle of about 20°-25°. For example, when the outer diameter of the buckle ring 12 is 40mm, the length of the spring leaf 22 is about 60mm, and the length of the pull rod 21 is about 90mm+pre-buried part length (selected according to different formwork plate methods).

[0030] As shown in the drawings, Figure 6 As shown in another embodiment of the utility model, the formwork shear wall formwork plate is connected by a buckle type connecting piece, in the specific implementation process, the annular buckle 1 is welded and fixed on the pre-buried steel bar net 4 in the first formwork plate, the umbrella-shaped buckle 2 is welded and fixed on the pre-buried part 6 in the second formwork plate, and the annular buckle 1 and the umbrella-shaped buckle 2 correspond to each other one by one, and the number of connecting pieces needs to be determined according to the size type of the component;

[0031] When assembling, the first formwork plate welded with the annular buckle 1 is fixed, the position of the second formwork plate is adjusted by means of machine equipment, the centers of all umbrella-shaped buckles 2 and annular buckles 1 on the formwork plate are aligned, the second formwork plate is slowly and accurately moved towards the first formwork plate, and the first formwork plate and the second formwork plate are kept in a parallel state during the moving process, and the umbrella-shaped buckles 2 are all buckled into the buckle rings 12.

[0032] After assembly, the umbrella-shaped buckle 2 is buckled inside the annular buckle 1, at this time, the spring 23 is in a compressed state, and the included angle between the spring leaf 22 and the steel bar pull rod 11 is smaller than the initial angle, so that the first formwork plate and the second formwork plate are not easy to fall out when subjected to outward lateral pressure during pouring of concrete, and the connection is firm.

[0033] The connecting piece of the utility model is suitable for prefabrication of formwork walls and formwork beams in full assembly type MiC buildings, and is also suitable for connection of formwork plates of other formwork components.

[0034] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A snap-on connector for a mold plate, characterized in that: The invention comprises a ring buckle (1) and an umbrella-shaped clip (2), wherein the ring buckle (1) is welded to the inner side of a first mold shell plate (3), and the umbrella-shaped clip (2) is welded to the inner side of a second mold shell plate (7), and the center of the umbrella-shaped clip (2) and the center of the ring buckle (1) are on the same straight line, and the umbrella-shaped part of the umbrella-shaped clip (2) is inserted into the ring buckle (1) to form a unidirectional force-bearing connecting piece.

2. A formwork plate snap-on connector according to claim 1, characterized in that: The annular buckle (1) comprises a buckle support frame (11) and a buckle (12).

3. A snap-on connector for formwork panels according to claim 2, characterized in that: The buckle support frame (11) is made of two round steel bars with a diameter of 4 to 6 mm, and the bottom is bent at 90 degrees.

4. A snap-on connector for formwork panels according to claim 3, characterized in that: The buckle (12) is a steel ring with a height of 10 to 20 mm, an outer diameter of 40 to 50 mm, and a wall thickness of 5 mm, and its side surface is welded to two buckle support frames (11) to form the annular buckle (1).

5. A formwork plate snap-on connector according to any one of claims 1 to 4, characterized in that: The umbrella-shaped clip (2) comprises a steel bar pull rod (21), a spring sheet (22) and a spring (23).

6. A formwork plate snap-on connector according to claim 5, characterized in that: The steel bar pull rod (21) is made of plain round steel bar, and four spring sheets (22) are welded to the head. The heads of the four spring sheets (22) are evenly welded in four directions of the steel bar pull rod (21). The ends of the spring sheets (22) are connected to the steel bar pull rod (21) by the springs (23).

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