A plug-in formwork and a plug-in formwork connection structure

Abstract

The utility model relates to building formwork technical field, concretely relates to a kind of plug-in formwork and plug-in formwork connecting structure, the upper surface of the flange edge of plug-in formwork is provided with several sink, the sink is connected to the surface of sticking, the groove bottom of every sink is provided with downward connecting hole, the connecting structure further includes plug-in part, the plug-in part includes connecting plate and latch, the utility model further seals joint by the coincidence design of sink and plug-in part, this structure ensures that there is no leakage path for concrete slurry when pouring, avoids material waste and floor defect caused by slurry leakage, simultaneously, the overall flatness of flange edge is improved, makes the surface of multi-rib floor system more smooth, reduces later repair cost, avoids the safety risk of high-altitude operation, and installation efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of building formwork technology, specifically to a plug-in formwork and a plug-in formwork connection structure. Background Technology

[0002] Ribbed floor slab formwork is a type of formwork used in building construction. It is mainly used for the construction of cast-in-place two-way ribbed floor slabs (floor slabs) and is suitable for construction of large-span and high-load spaces, such as underground garages, large shopping malls, multi-story factories, school buildings, and civil defense projects.

[0003] In existing technologies, formwork is typically supported by scaffolding, with wooden templates laid on top of the scaffolding. The formwork is placed on the wooden templates, and there is no connection between adjacent formworks, or they are connected by fasteners. If there is no connection between the formworks, concrete grout can easily leak from the gaps between the formwork components. If fasteners are used, it can ensure that the connection between the formworks is tight and there will be no leakage. For the horizontal connection holes and fasteners, you can refer to our company's recently applied patent, CN223034518U, a formwork for a ribbed floor slab. However, when connecting the fasteners, workers need to insert a long screw into the horizontal connection hole from below. If the connection holes of adjacent formworks are not aligned, it will be difficult to insert the screw. It is necessary to use tools such as hammers to tap the formwork to adjust its position, or to tap the bolt to make the bolt emerge smoothly from the other end of the connection hole. Then, nuts and washers are placed, and finally, power tools are used to tighten it. This is quite labor-intensive. Therefore, there is an urgent need for a more convenient formwork connection method. Utility Model Content

[0004] The problem solved by this utility model is that the existing technology of fastening adjacent mold shells from below with bolts is relatively labor-intensive. This invention provides a plug-in mold shell and plug-in mold shell connection structure that are more convenient to install.

[0005] This utility model is achieved through the following technical solution: a plug-in mold shell, the plug-in mold shell including a top surface of the mold shell, a ring of downwardly extending side surfaces of the mold shell connected around the top surface of the mold shell, the top surface of the mold shell and the surrounding side surfaces of the mold shell forming a cavity, the lower edge of the side surfaces of the mold shell continuing to extend horizontally outward to form a flange edge, the outer contour of the ring of flange edges is rectangular, the vertical end face of the free end of the outer edge of the flange edge is the mating surface between the plug-in mold shells, the upper surface of the flange edge is provided with a plurality of grooves, the grooves are connected to the mating surface, and the bottom of each groove is provided with a downward connecting hole, the connecting hole being a countersunk hole or a through hole.

[0006] Furthermore, when there is only one groove on a single flange edge, the groove is located in the middle of the flange edge; when there are multiple grooves on a single flange edge, the grooves are symmetrically arranged along the length of the flange edge.

[0007] Furthermore, when there is only one connecting hole on a single sump, the connecting hole is located on the central axis of the sump. When there are multiple connecting holes on a single sump, the connecting holes are symmetrically arranged within the sump along the length of the flange edge.

[0008] Furthermore, the vertical projection outline of the settling tank is a symmetrical figure.

[0009] In another aspect, the present invention provides a plug-in mold shell connection structure, including the plug-in mold shell described above, further including a connecting plate and pins. Half of the shape of the vertical projection of the connecting plate matches the shape of the vertical projection of the sinker. The thickness of the connecting plate is consistent with the depth of the sinker. The pins are fixedly installed below the connecting plate and extend vertically downward. The number / position of the pins matches the number / position of the connecting holes in the two symmetrically arranged sinkers. During installation, the mating surfaces of two adjacent mold shells are attached together, and the corners are aligned. Several grooves on the two flange edges are symmetrically arranged, and a connecting block is placed in each pair of grooves. The pin is inserted into the connecting hole, the lower surface of the connecting plate abuts against the bottom surface of the tenon groove, and the upper surface of the connecting plate is flush with the upper surface of the flange edge.

[0010] Furthermore, the connecting plate and the pin are made of plastic or metal.

[0011] Furthermore, the pin includes a guide portion and a working portion, the cross-section of which is consistent with the cross-section of the connecting hole.

[0012] Furthermore, the guide portion is provided with a guide cone surface or a guide ramp surface.

[0013] The beneficial effects of this utility model are: 1. This utility model further seals the joints through the matching design of the sink groove and the plug-in part. This structure ensures that there is no leakage path for the concrete slurry during pouring, avoiding material waste and floor defects caused by slurry leakage. At the same time, the overall flatness of the flange edge is improved, making the surface of the ribbed floor slab smoother and reducing the cost of later repairs.

[0014] 2. Compared with the prior art, where the mold shell connection requires workers to insert bolts, hammer and adjust, and tighten nuts from below, which is time-consuming and laborious, this utility model adopts a plug-in structure. Workers only need to insert the pin vertically into the connection hole of the adjacent mold shell groove from above, without the need for bottom operation, thus avoiding the safety risks of working at height below.

[0015] 3. The tapered guide at the end of the pin of this utility model can automatically correct positional deviations within 5mm. Alignment and fixation can be completed by pressing or tapping, greatly reducing adjustment time and manpower consumption, and significantly improving installation efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the plug-in mold shell described in Embodiment 1 (top three-dimensional view). Figure 2 This is a schematic diagram of the plug-in mold shell structure described in Embodiment 1 (3D view from below). Figure 3 This is a schematic diagram of the connecting block in Embodiment 2; Figure 4 This is a schematic diagram of the plug-in mold shell connection structure in Embodiment 2; Figure 5 This is a schematic diagram of the plug-in mold shell in Embodiment 3; Figure 6 This is a schematic diagram of the connecting block in Embodiment 3; Figure 7 This is a schematic diagram of the plug-in mold shell connection structure in Embodiment 3; Figure 8 This is a schematic diagram of the plug-in mold shell in Example 4; Figure 9 This is a schematic diagram of the connecting block in Embodiment 4; Figure 10 This is a schematic diagram of the plug-in mold shell connection structure in Embodiment 4; Figure 11 This is a schematic diagram of the connecting block in Embodiment 5; Figure 12 This is a schematic diagram of the plug-in mold shell connection structure in Embodiment 5.

[0017] In the picture: 100. Plug-in mold shell; 101. Top surface of mold shell; 102. Side surface of mold shell; 103. Cavity; 104. Flange edge; 105. Mating surface; 106. Countersunk groove; 107. Connecting hole; 200. Connector; 201. Connecting plate; 202. Pin; 2021. Guide section; 2022. Working section. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0019] like Figure 1-2As shown, a mold shell, the plug-in mold shell 100 includes a top surface 101, and a ring of downwardly extending side surfaces 102 connected around the top surface 101. The top surface 101 and the surrounding side surfaces 102 form a cavity 103. The lower edge of the side surfaces 102 continues to extend horizontally outward to form a flange edge 104. The outer contour of the flange edge 104 is rectangular, and the vertical end face of the free end of the outer edge of the flange edge 104 is the mating surface 105 between the plug-in mold shells 100. The upper surface of the flange edge 104 is provided with a plurality of recesses 106, the recesses 106 are connected to the mating surface 105, and the bottom of each recess 106 is provided with a downward connecting hole 107, the connecting hole 107 being a countersunk hole or a through hole.

[0020] In this design, the flange edge 104 of the mold shell has a side length of 1200mm. Each flange edge 104 has 3 grooves 106, which are spaced 400mm apart. The center line of the groove 106 at the edge is 200mm away from the top corner of the flange edge 104. In this way, after the mold shells are aligned diagonally and edge to edge, the grooves 106 of adjacent mold shells are also in symmetrical positions.

[0021] The vertical projection outline of the countersink 106 is generally a symmetrical shape, so the connector 200 is also symmetrical both horizontally and vertically, which facilitates processing, is non-directional, and easy to install. In this design, the countersink 106 has a rectangular outline with dimensions of 80mm × 50mm. Two φ10mm connecting holes 107 are provided inside the countersink 106. These connecting holes 107 are symmetrically arranged and are through holes, extending to the bottom surface of the flange edge 104. The plug-in mold shell 100 in this design facilitates quick connection using the connector 200. Example 2

[0022] like Figure 4 As shown, a plug-in mold shell 100 connection structure includes the plug-in mold shell 100 of one embodiment, and also includes a plug-in member 200, such as... Figure 3 As shown, the connector 200 includes a connecting plate 201 and a pin 202. The connecting plate 201 and the pin 202 are fixedly connected or integrally formed. In this solution, the connecting plate 201 and the pin 202 are integrally formed metal.

[0023] Half of the vertical projection shape of the connecting plate 201 matches the vertical projection shape of the sink 106. The thickness of the connecting plate 201 is the same as the depth of the sink 106. The pins 202 are fixedly installed below the connecting plate 201 and extend vertically downward. The number / position of the pins 202 matches the number / position of the connecting holes 107 in the two symmetrically arranged sinks 106. In this scheme, the connecting plate 201 is rectangular with dimensions of 80mm × 100mm and a thickness of 10mm. Each of the four corners is provided with a pin 202. The pin 202 is 50mm long. The last 15mm of the pin 202 is a guide part 2021 with a conical surface. The last 35mm near the root is a working part 2022, which is used to cooperate with the connecting holes 107 to fix the plug-in mold shell 100.

[0024] During installation, the mating surfaces 105 of two adjacent plug-in mold shells 100 are abutted together, with corners aligned. Several countersunk grooves 106 on the two flange edges 104 are symmetrically arranged, and a connecting plate 201 is placed in each pair of countersunk grooves 106. The four pins 202 are inserted into the four connecting holes 107. The lower surface of the connecting plate 201 abuts against the bottom surface of the tenon groove, and the upper surface of the connecting plate 201 is flush with the upper surface of the flange edge 104. After completing the connection of the plug-in mold shells 100, even if the mating surfaces 105 of the plug-in mold shells 100 are not completely abutted together or corners aligned when installing the first plug-in piece 200, as long as the deviation is within 5mm, the mold shell can automatically adjust its position by being tapped down with a rubber mallet or pressed down forcefully through the constraint of the connecting holes 107 by the guide part 2021. Installation is very convenient. In this design, construction workers can stand entirely above the laid formwork, eliminating the need for fastener installation below the formwork, thus improving safety and efficiency. Furthermore, the fit between the connecting plate 201 and the settling trough 106 ensures the flatness of the formwork flange edge 104, preventing grout leakage and resulting in a smoother surface for the ribbed slab floor. Example 3

[0025] like Figure 5-7 As shown, the difference from Embodiment 1 is that the connecting plate 201 is hourglass-shaped, with the width in the middle being smaller than the width at both ends, and the groove 106 of the plug-in mold shell 100 has a trapezoidal outline. After the plug-in component 200 is installed, the hourglass-shaped connecting plate 201 and the trapezoidal groove 106 are engaged, providing additional pull-out resistance and making it more conducive to fixing the mold shells. Example 4

[0026] like Figure 8-10As shown, the difference from Embodiment 1 is that the connecting hole 107 is a rectangular hole, the cross section of the pin 202 is directional, and the guide portion 2021 at the bottom of the pin 202 is provided with three guide slopes. When the plug-in mold shell 100 does not completely achieve contact between the mating surfaces 105 and the corners are aligned, the straight guide slopes and the rectangular connecting hole 107 make line contact when they match. Compared with the point contact in Embodiment 1, this can provide a greater corrective force and make it easier to automatically adjust the position of the mold shell. Example 5

[0027] like Figure 11-12 As shown, the difference from Embodiment 1 is that the size of the sink 106 is 40mm×50mm, and there is only one connecting hole 107 in the sink 106. The size of the connecting plate 201 of the corresponding plug 200 is 40mm×100mm, and there are two pins 202 on the connecting plate 201, which can also complete the quick connection of the mold shell.

[0028] In summary, the mold shell and mold shell connection structure described in this utility model achieves rapid installation and improves construction efficiency by setting a groove on the flange edge and cooperating with the connecting block.

[0029] 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 the above embodiments are only for illustrating the technical concept and characteristics of this utility model, and are intended to enable those skilled in the art to understand and implement the content of this utility model. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A plug-in mold shell, characterized in that: The plug-in mold shell (100) includes a top surface (101) of the mold shell, and a downwardly extending side surface (102) is connected around the top surface (101). The top surface (101) and the side surface (102) surrounding it form a cavity (103). The lower edge of the side surface (102) continues to extend horizontally outward to form a flange edge (104). The outer contour of the flange edge (104) is rectangular, and the vertical end face of the free end of the outer edge of the flange edge (104) is the mating surface (105) between the plug-in mold shells (100). The upper surface of the flange edge (104) is provided with a plurality of grooves (106), the grooves (106) are connected to the mating surface (105), and the bottom of each groove (106) is provided with a downward connecting hole (107), the connecting hole (107) being a countersunk hole or a through hole.

2. The plug-in mold shell according to claim 1, characterized in that: When there is one groove (106) on a single flange edge (104), the groove (106) is located in the middle of the flange edge (104). When there are multiple grooves (106) on a single flange edge (104), the grooves (106) are symmetrically arranged along the length of the flange edge (104).

3. The plug-in mold shell according to claim 1, characterized in that: When there is one connecting hole (107) on a single sink (106), the connecting hole (107) is located on the central axis of the sink (106). When there are multiple connecting holes (107) on a single sink (106), the connecting holes (107) are symmetrically arranged in the sink (106) along the length direction of the flange edge (104).

4. The plug-in mold shell according to claim 1, characterized in that: The vertical projection outline of the settling tank (106) is a symmetrical figure.

5. A plug-in mold shell connection structure, characterized in that: The device includes the plug-in mold shell (100) according to any one of claims 1-4, and further includes a plug-in component (200), the plug-in component (200) including a connecting plate (201) and a pin (202), the connecting plate (201) and the pin (202) being fixedly connected or integrally formed. The shape of half of the vertical projection of the connecting plate (201) matches the shape of the vertical projection of the sinker (106). The thickness of the connecting plate (201) is the same as the depth of the sinker (106). The pins (202) are fixedly installed below the connecting plate (201) and extend vertically downward. The number / position of the pins (202) matches the number / position of the connecting holes (107) in the two symmetrically arranged sinkers (106). During installation, the mating surfaces (105) of two adjacent plug-in mold shells (100) are attached together, with corners aligned. Several grooves (106) on the two flange edges (104) are symmetrically arranged, and a connecting plate (201) is placed in each pair of grooves (106). The pin (202) is inserted into the connecting hole (107). The lower surface of the connecting plate (201) abuts against the bottom surface of the tenon groove, and the upper surface of the connecting plate (201) is flush with the upper surface of the flange edge (104).

6. The plug-in mold shell connection structure according to claim 5, characterized in that: The connecting plate (201) and the pin (202) are made of plastic or metal.

7. The plug-in mold shell connection structure according to claim 5, characterized in that: The pin (202) includes a guide portion (2021) and a working portion (2022), the cross-section of which is the same as the cross-section of the connecting hole (107).

8. The plug-in mold shell connection structure according to claim 7, characterized in that: The guide section (2021) is provided with a guide cone surface or a guide slope surface.

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