A connecting and locking device for building formwork

Abstract

The utility model belongs to the field of building template tools, propose a kind of connecting locking device of building template, including vertical groove board, horizontal groove board and through plate bolt, the middle position of the end of horizontal groove board is provided with bayonet and is provided with outer clamping plate and inner clamping plate in the position close to bayonet, the end face of adjacent horizontal groove board on the same vertical plane is in butt joint cooperation, the inner side of adjacent horizontal groove board on the same vertical plane is provided with the clamping bolt of with inner clamping plate clamping, the outside of adjacent horizontal groove board on the same vertical plane is provided with the butt joint component matched with outer clamping plate, butt joint component includes embracing groove, positioning protruding, baffle, hinged bolt and fastening bolt connection, the adjacent horizontal groove board on different plane is in upper and lower lap joint cooperation and is connected by elbow lever component.The utility model design is reasonable, is favorable for improving support reliability and convenient to dismantle formwork, is suitable for large-scale popularization.

Description

Technical Field

[0001] This utility model belongs to the field of building formwork tools and relates to a connection and locking device for building formwork. Background Technology

[0002] Construction formwork is a temporary structure used for shaping and supporting concrete during construction. Support structures are typically installed on the outside of the formwork to ensure its stability and reliability.

[0003] Currently, the structures used to connect and lock building formwork mostly adopt a combination of horizontal and vertical steel bars. The horizontal and vertical steel bars are square tubes, channel plates, or round rods, and are bolted together at the intersections. However, because the entire support surface formed by the formwork of some walls is quite long, if the horizontal steel bars cannot be effectively connected, the locking effect will be greatly reduced. In most cases, overlapping or nesting methods are used instead of butt joints, resulting in a lack of connection between the stress surfaces. This increases the shear force on the bolts to some extent and makes subsequent formwork removal more difficult. Utility Model Content

[0004] This utility model addresses the technical problems existing in the above-mentioned formwork connection and locking facilities by proposing a reasonably designed building formwork connection and locking device that improves support reliability and facilitates formwork disassembly.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a connecting and locking device for building formwork, comprising a vertical groove plate and a horizontal groove plate. The vertical groove plate is provided with a plurality of vertical connecting holes distributed along its length. The upper and lower sides of the horizontal groove plate are each provided with a plurality of first transverse connecting holes distributed along its length. The front of the horizontal groove plate is provided with a second transverse connecting hole. Through bolts are installed in the second transverse connecting holes and the vertical connecting holes. A latch is provided at the middle position of the end of the horizontal groove plate, and an outer latch plate and an inner latch plate are provided near the latch plate, located on the same vertical direction. The end faces of adjacent transverse slot plates on the plane are mated together. The inner side of adjacent transverse slot plates on the same vertical plane is provided with a locking bolt that engages with the inner locking plate. The outer side of adjacent transverse slot plates on the same vertical plane is provided with a mating assembly that engages with the outer locking plate. The mating assembly includes a retaining groove that nests with the outer locking plate. The inner wall of the retaining groove is provided with a positioning protrusion that engages with the locking slot. A baffle is provided opposite the retaining groove. One end of the baffle is rotatably connected to the retaining groove by a hinge bolt, and the other end is connected by a fastening bolt. Adjacent transverse slot plates on different planes are mated together vertically and connected by a bend rod assembly.

[0006] Preferably, the elbow rod assembly includes an L-shaped rod that engages with an inner clamping plate and has a first limiting nut at one end. The other end of the L-shaped rod passes through a first transverse connecting hole on an adjacent transverse slot plate. A T-shaped sleeve is provided on the L-shaped rod, and the T-shaped sleeve engages with the inner clamping plate and has a second limiting nut. The center lines of the first limiting nut and the second limiting nut intersect at opposite planes.

[0007] Preferably, the end of the second limiting nut is provided with a plug, the plug including a hexagonal prism segment, the end of the hexagonal prism segment is provided with a cylindrical segment, and the side of the cylindrical segment is provided with a square prism segment that engages with a locking mechanism.

[0008] Preferably, the vertical cross-section of the clamping groove is U-shaped with the U-shaped opening facing the baffle. The inner side of the clamping groove is provided with a groove for the outer clamping plate, and the outer side of the clamping groove is provided with bolt sleeves distributed diagonally.

[0009] Preferably, the baffle includes a square plate portion, with connecting ears provided at opposite corners of the square plate portion, a reinforcing ring provided in the middle of the square plate portion, and multiple teeth provided on the edge of the reinforcing ring.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model provides a connection and locking device for building formwork. Using butt-joint components and snap-fit ​​bolts, adjacent horizontal slot plates on the same vertical plane can be joined together, ensuring the continuity of the support surface and improving the locking reliability of the formwork. The use of a bend rod component allows adjacent horizontal slot plates on different vertical planes to overlap, and the design avoids protruding sections, thus improving the safety of the entire formwork system. This utility model is rationally designed, improves support reliability, and facilitates formwork dismantling, making it suitable for large-scale promotion. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A working diagram of a connection and locking device for building formwork provided in the embodiment; Figure 2 A partial view of a connection and locking device for building formwork provided in an embodiment; Figure 3 for Figure 2 An enlarged schematic diagram of a connection and locking device for a type of building formwork at point A; Figure 4 for Figure 2 An enlarged schematic diagram of a connection and locking device for a type of building formwork at point B; Figure 5 An exploded view of the bend rod assembly provided in the embodiment; Figure 6 A perspective view of the docking components provided in the embodiment; In the above figures: 1. Vertical slot plate; 11. Vertical connecting hole; 2. Horizontal slot plate; 21. First horizontal connecting hole; 22. Second horizontal connecting hole; 23. Bayonet; 24. Outer clamping plate; 25. Inner clamping plate; 3. Through plate bolt; 4. Snap-fit ​​bolt; 5. Butt joint assembly; 51. Engaging groove; 511. Positioning protrusion; 512. Slot; 513. Bolt sleeve; 52. Baffle; 521. Square plate section; 522. Connecting ear; 523. Reinforcing ring; 524. Thread; 53. Hinge bolt; 54. Fastening bolt; 6. Flanged rod assembly; 61. L-shaped rod; 62. First limiting nut; 63. T-shaped sleeve; 64. Second limiting nut; 65. Plug; 651. Hexagonal prism section; 652. Cylindrical section; 653. Quadrilateral prism section. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0014] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0015] Examples, such as Figures 1-6As shown, this utility model provides a connecting and locking device for building formwork, including a vertical slot plate 1 and a horizontal slot plate 2. The vertical slot plate 1 is provided with a plurality of vertical connecting holes 11 distributed along its length. The upper and lower sides of the horizontal slot plate 2 are provided with a plurality of first transverse connecting holes 21 distributed along its length. The front side of the horizontal slot plate 2 is provided with a second transverse connecting hole 22. Through bolts 3 are provided in the second transverse connecting holes 22 and the vertical connecting holes 11. A latch 23 is provided at the middle position of the end of the horizontal slot plate 2, and an outer latch 24 and an inner latch 25 are provided near the latch 23. The end faces of adjacent horizontal slot plates 2 located on the same vertical plane are aligned. The adjacent transverse slot plates 2 on the same vertical plane are provided with locking bolts 4 on their inner sides to engage with the inner locking plate 25. The adjacent transverse slot plates 2 on the same vertical plane are provided with docking components 5 to engage with the outer locking plate 24 on their outer sides. The docking components 5 include a retaining groove 51 nested with the outer locking plate 24. The inner wall of the retaining groove 51 is provided with a positioning protrusion 511 to engage with the bayonet 23. A baffle 52 is provided opposite the retaining groove 51. One end of the baffle 52 is rotatably connected to the retaining groove 51 by a hinge bolt 53 and the other end is connected by a fastening bolt 54. The adjacent transverse slot plates 2 on different planes are connected by an upper and lower overlapping joint and are connected by a bend rod assembly 6.

[0016] Specifically, the slot of the vertical slot plate 1 faces the template and contacts the template. The horizontal slot plate 2 is set on the outside of the vertical slot plate 1. The position where the horizontal slot plate 2 contacts the vertical slot plate 1 is connected by the vertical connecting hole 11 and the second horizontal connecting hole 22 through the through bolt 3. For the horizontal slot plates 2 on the same vertical plane, the inner side of the horizontal slot plate 2 is connected to the inner clamping plate 25 by the snap-fit ​​bolt 4. After the C-shaped opening of the inner clamping plate 25 is connected to the snap-fit ​​bolt 4, it can ensure the alignment of the adjacent horizontal slot plates 2. The outer side is connected by the docking assembly 5. For example, the positioning protrusion 511 plays a positioning role at the clamping position. The clamping groove 51 clamps the two outer clamping plates 24 on the adjacent horizontal slot plates 2 at the same time, and the baffle 52 is used to clamp them together. Rotate around the center of the hinge bolt 53 connecting it to the transverse slot plate 2 until the fastening bolt 54 aligns with the connection hole between the centering baffle 52 and the transverse slot plate 2. The baffle 52 then forms a clamping effect with the clamping groove 51 on the mating surfaces of the two transverse slot plates 2, ensuring the integrity of the connection of the transverse slot plates 2 in the same straight direction and the continuity of the support surface, which is beneficial to improving the locking reliability of the template. Furthermore, for transverse slot plates 2 on different vertical planes, at the turning point of the plane, one transverse slot plate 2 can be placed on top of another transverse slot plate 2. The bend rod assembly 6 can be used to make adjacent transverse slot plates 2 on different vertical planes overlap, and the design does not protrude, which is beneficial to improving the safety of the entire template system. This utility model can improve the reliability of the connection and locking of the template, and the shear force of the bolts used for connection on the same vertical plane is small, reducing the probability of bending deformation and facilitating demolding.

[0017] To improve the connection performance of the elbow rod assembly 6 to the transverse slot plates 2 on different vertical planes, the elbow rod assembly 6 provided by this utility model includes an L-shaped rod 61, which is engaged with the inner clamping plate 25 and has a first limiting nut 62 at one end. The other end of the L-shaped rod 61 passes through the first transverse connecting hole 21 on the adjacent transverse slot plate 2. A T-shaped sleeve 63 is provided on the L-shaped rod 61, which is engaged with the inner clamping plate 25 and has a second limiting nut 64. The center line of the first limiting nut 62 and the center line of the second limiting nut 64 intersect in opposite directions. The length of both sides of the L-shaped rod 61 is greater than the width and depth of the transverse groove plate 2. One end of the L-shaped rod 61 is first inserted into the upper first transverse connecting hole 21 from the inside of the groove of the transverse groove plate 2. After the L-shaped rod 61 is straightened, the other side of the L-shaped rod 61 is clamped onto the inner clamping plate 25. The first limiting nut 62 is connected to the L-shaped rod 61 from the other side of the inner clamping plate 25 to adjust the distance between the L-shaped rod 61 and the end of the transverse groove plate 2. Another transverse groove plate 2 is vertically inserted into the L-shaped rod 61, passing through the T-shaped sleeve 63, until... The L-shaped rod 61 is connected to the first transverse connecting hole 21 without protruding. The horizontal section of the T-shaped sleeve 63 is engaged with the inner clamping plate 25 on the inner side of the transverse slot plate 2. The second limiting nut 64 is connected to the T-shaped sleeve 63 from the other side of the inner clamping plate 25, thereby controlling the distance between the T-shaped sleeve 63 and the end of the transverse slot plate 2. Since there are at least two sets of bend rod assemblies 6 connecting the three different vertical planes at their intersection, the spacing between the three different vertical planes can be determined by adjusting the first limiting nut 62 and the second limiting nut 64.

[0018] To prevent the second limiting nut 64 from rotating freely, this invention provides a plug 65 at the end of the second limiting nut 64. The plug 65 includes a hexagonal prism segment 651, with a cylindrical segment 652 at the end of the hexagonal prism segment 651. A square prism segment 653 with a locking slot 23 is provided on the side of the cylindrical segment 652. After determining the connection depth between the second limiting nut 64 and the end of the T-sleeve 63, the hexagonal prism segment 651 is inserted into the internal hexagonal groove of the second limiting nut 64, and the square prism segment 653 is locked in the locking slot 23. This prevents the second limiting nut 64 from rotating freely and affecting the reliability of the template system.

[0019] To improve the connection reliability of the docking assembly 5, the vertical cross-section of the clamping groove 51 provided by this utility model is U-shaped with the U-shaped opening facing the baffle 52. The inner side of the clamping groove 51 is provided with a groove 512 for the outer clamping plate 24 to cooperate with, and the outer side of the clamping groove 51 is provided with bolt sleeves 513 distributed diagonally. The two grooves 512 inside the clamping groove 51 can respectively correspond to the two outer clamping plates 24 on the adjacent transverse groove plate 2 to achieve nested cooperation. The grooves 512 limit the horizontal displacement margin of the outer clamping plate 24. The bolt sleeves 513 provide connection nodes for the hinge bolts 53 and fastening bolts 54. In particular, the hinge bolts 53 are usually not removed and always maintain the connection with the baffle 52. The baffle 52 can be rotated around the hinge center. When docking and locking are required, the baffle 52 is rotated up and the fastening bolts 54 are connected to the corresponding holes to achieve quick connection.

[0020] Furthermore, the baffle 52 provided by this utility model includes a square plate portion 521, with connecting ears 522 arranged diagonally on the square plate portion 521, and a reinforcing ring 523 arranged in the middle of the square plate portion 521. Multiple teeth 524 are provided on the edge of the reinforcing ring 523. The vertical length of the square plate portion 521 is at least greater than the width of the groove of the transverse groove plate 2, so as to completely block the upper and lower groove edges of the transverse groove plate 2. The diagonally arranged connecting ears 522 reduce the necessary bolt holes, facilitating a quick locking relationship with the engaging groove 51. The reinforcing ring 523 helps improve the structural strength of the baffle 52 and reduces the probability of deformation. The teeth 524 provide appropriate expansion allowance for the reinforcing ring 523, facilitating the shipment of the baffle 52 in pairs or in a snap-fit ​​manner.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A connecting and locking device for building formwork, comprising a vertical slot plate and a horizontal slot plate, wherein the vertical slot plate is provided with a plurality of vertical connecting holes distributed along its length, the upper and lower sides of the horizontal slot plate are provided with a plurality of first transverse connecting holes distributed along its length, and the front side of the horizontal slot plate is provided with a second transverse connecting hole, wherein through bolts are provided in the second transverse connecting holes and the vertical connecting holes, characterized in that, A latch is provided at the middle position of the end of the transverse slot plate, and an outer latch plate and an inner latch plate are provided near the latch. The end faces of adjacent transverse slot plates on the same vertical plane are mated together. The inner side of adjacent transverse slot plates on the same vertical plane is provided with a latching bolt that engages with the inner latch plate. The outer side of adjacent transverse slot plates on the same vertical plane is provided with a docking assembly that engages with the outer latch plate. The docking assembly includes a retaining groove nested with the outer latch plate. The inner wall of the retaining groove is provided with a positioning protrusion that engages with the latch. A baffle is provided opposite the retaining groove. One end of the baffle is rotatably connected to the retaining groove by a hinge bolt, and the other end is connected by a fastening bolt. Adjacent transverse slot plates on different planes are overlapped and connected by a bend rod assembly.

2. The connecting and locking device for building formwork according to claim 1, characterized in that, The elbow rod assembly includes an L-shaped rod that engages with an inner clamping plate and has a first limiting nut at one end. The other end of the L-shaped rod passes through a first transverse connecting hole on an adjacent transverse slot plate. A T-shaped sleeve is provided on the L-shaped rod, and the T-shaped sleeve engages with the inner clamping plate and has a second limiting nut. The center lines of the first limiting nut and the second limiting nut intersect at opposite planes.

3. The connecting and locking device for building formwork according to claim 2, characterized in that, The end of the second limiting nut is provided with a plug, the plug including a hexagonal prism segment, the end of the hexagonal prism segment is provided with a cylindrical segment, and the side of the cylindrical segment is provided with a square prism segment that engages with a locking mechanism.

4. A connecting and locking device for building formwork according to claim 1 or 3, characterized in that, The vertical cross-section of the clamping groove is U-shaped with the U-shaped opening facing the baffle. The inner side of the clamping groove is provided with a slot for the outer clamping plate to cooperate with, and the outer side of the clamping groove is provided with bolt sleeves distributed diagonally.

5. A connecting and locking device for building formwork according to claim 4, characterized in that, The baffle includes a square plate portion, with connecting ears provided at opposite corners of the square plate portion, a reinforcing ring provided in the middle of the square plate portion, and multiple teeth provided on the edge of the reinforcing ring.

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