A formwork construction device for post-cast sections of composite floor slabs

Abstract

This utility model discloses a formwork construction device for the post-cast section of a composite floor slab, installed at the post-cast strip of the composite floor slab. It includes: a formwork and multiple formwork lifting mechanisms; the formwork is connected to the bottom of a pair of composite floor slabs and covers the post-cast strip, with a pair of parallel wooden supports on the underside of the formwork; each of the multiple formwork lifting mechanisms is in contact with the pair of wooden supports. The formwork is suspended at the post-cast strip of the composite floor slab by the multiple formwork lifting mechanisms. The wooden supports are parallel to the post-cast strip, and their horizontal cross-sectional area is larger than the bottom area of ​​the post-cast strip to ensure effective coverage of the post-cast strip for concrete pouring. Each formwork lifting mechanism includes a lower support member that contacts the bottom of the pair of wooden supports. This utility model can complete the in-situ casting construction of composite floor slabs, reducing the risk of grout leakage. It also reduces the need for formwork erection and other construction procedures during in-situ casting of composite floor slabs, thereby shortening the construction period and improving construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically relating to a suspended formwork construction device for post-cast sections of composite floor slabs. Background Technology

[0002] Composite floor slabs are a type of prefabricated monolithic structure, typically consisting of a precast base slab and a cast-in-place composite layer. Composite floor slabs not only improve the seismic performance and load-bearing capacity of the floor slab, but also effectively reduce the slab thickness, increase usable space in the building, save on concrete usage and construction costs, and significantly shorten the construction period.

[0003] During the construction of composite floor slabs, sponge strips are usually used to attach around the joints of the formwork and the contact points with the formwork. However, the sponge strips are prone to problems such as insecure installation, gaps, and poor adaptability to different substrates, which can lead to grout leakage during concrete pouring. In addition, if the base layer of the formwork is uneven or the material is not uniform, the composite floor slab will not be firmly fixed, which will also lead to grout leakage.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a formwork construction device for the post-cast section of composite floor slabs.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a formwork construction device for the post-cast section of composite floor slabs, which can solve the problem of grout leakage that easily occurs when composite floor slabs are cast in place.

[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0008] A formwork construction device for the post-cast section of a composite floor slab, installed at the post-cast strip of the composite floor slab, includes: a formwork and multiple formwork lifting mechanisms;

[0009] The template is connected to the bottom of a pair of composite floor slabs and covers the post-pouring strip. A pair of parallel wooden blocks are provided on the underside of the template.

[0010] Each of the multiple formwork lifting mechanisms is in contact with a pair of wooden blocks, and the formwork is suspended at the post-pouring strip of the composite floor slab by the multiple formwork lifting mechanisms.

[0011] In one or more embodiments of this utility model, the wooden pad is parallel to the post-pouring strip, and the horizontal cross-sectional area of ​​the wooden pad is larger than the bottom area of ​​the post-pouring strip, so as to ensure the covering effect of the wooden pad on the post-pouring strip, so as to carry out concrete pouring.

[0012] In one or more embodiments of this utility model, the lifting mechanism includes a lower support member that contacts the bottom of a pair of wooden blocks and is used to fix the pair of wooden blocks. The dimensions of the lower support member are 60mm × 60mm × 2.5mm.

[0013] In one or more embodiments of this utility model, a tie rod is provided through the lower support member, and an upper support rod is fixedly connected to the tie rod. The tie rod and the upper support rod are perpendicular to each other. The template, the pad wood and the lower support member are hoisted to the bottom of the composite floor slab through the cooperation of the tie rod and the upper support rod.

[0014] In one or more embodiments of this utility model, the upper support rod spans across the top of a pair of composite floor slabs, and the template, pad wood, and lower support are suspended at the bottom of the composite floor slabs through the cooperation of the tie rod and the upper support rod.

[0015] Both ends of the upper support rod are connected to pads, which are in contact with the composite floor slab to improve the contact effect between the upper support rod and the composite floor slab.

[0016] In one or more embodiments of this utility model, the tie rod passes through the template, and the side wall of the tie rod is provided with a rubber washer. The rubber washer contacts the template, so that the post-pouring strip is less likely to have leakage problems during on-site pouring.

[0017] In one or more embodiments of this utility model, a support module is provided on the outside of the tie rod, the support module is located on the lower side of the lower support member, and a wing nut is threaded to the end of the tie rod. The tie rod presses the template onto the bottom surface of the composite floor slab through the support module and the wing nut so as to allow for the in-situ casting of the post-pouring strip.

[0018] In one or more embodiments of this utility model, a pair of fixed seats are symmetrically connected to the side wall of the support module. A telescopic member is slidably provided in the fixed seat. The telescopic member is used to connect the support block. The position of the support block can be adjusted by sliding the telescopic member in the fixed seat so that the support block can better support the lower support member and ensure the fixing effect of the lower support member on the pad.

[0019] In one or more embodiments of this utility model, one end of the telescopic member located inside the fixed base is connected to a limiting plate, and an elastic rope is connected between the limiting plate and the inner wall of the fixed base. When the screw is loosened, the telescopic member is retracted into the fixed base under the action of the elastic rope, so as to reduce the overall volume of the support module and facilitate transportation.

[0020] In one or more embodiments of this utility model, a support block is fixedly connected to the end of the telescopic member away from the fixed base, and the support block is in contact with the lower support member, and the support block can play the role of supporting the lower support member;

[0021] The fixed base has screws threaded to its side wall. The screws correspond to the telescopic component. Tightening the screws can fix the position between the fixed base and the telescopic component, ensuring the support effect of the support block on the lower support component.

[0022] Compared with the prior art, the suspended formwork construction device for the post-cast section of the composite floor slab of this utility model can complete the on-site casting construction of the composite floor slab, and is less likely to have grout leakage problems. At the same time, it can also reduce the construction procedures such as the erection of formwork during the on-site casting of the composite floor slab, thereby shortening the construction period and improving construction efficiency. Attached Figure Description

[0023] 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the first angle portion of a formwork construction device for a post-cast section of a composite floor slab, according to one embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the second angle portion of a formwork construction device for a post-cast section of a composite floor slab, according to one embodiment of the present invention.

[0026] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle;

[0027] Figure 4 This is a cross-sectional view of a formwork construction device for post-cast sections of composite floor slabs in one embodiment of this utility model;

[0028] Figure 5 for Figure 4 Schematic diagram of the structure at point B.

[0029] Explanation of key figure labels:

[0030] 1-Composite floor slab, 101-Post-pouring strip, 2-Formwork, 201-Wooden pad, 3-Lifting formwork mechanism, 301-Lower support, 302-Tie rod, 303-Upper support rod, 3031-Padded block, 304-Support module, 3041-Fixed seat, 3042-Telescopic component, 3043-Limiting plate, 3044-Elastic rope, 3045-Support block, 3046-Screw, 305-Wing nut. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0032] like Figures 1 to 5 As shown, in one embodiment of this utility model, a formwork construction device for the post-cast section of a composite floor slab is installed at the post-cast strip 101 between a pair of adjacent composite floor slabs 1. The multiple composite floor slabs 1 are spliced ​​together, and the device includes: a template 2 and multiple formwork lifting mechanisms 3.

[0033] like Figures 1 to 5 As shown, the template 2 is connected to the bottom of a pair of composite floor slabs 1, and the template 2 extends to the bottom of the composite floor slabs 1 to cover the post-pouring strip 101. A pair of parallel wooden blocks 201 are provided on the lower side of the template 2, and the wooden blocks 201 are used to fix the template 2.

[0034] Preferably, template 2 can be an aluminum template.

[0035] Among them, the pad 201 is parallel to the post-pouring strip 101, and the horizontal cross-sectional area of ​​the pad 201 is larger than the bottom area of ​​the post-pouring strip 101 to ensure the covering effect of the pad 201 on the post-pouring strip 101 so as to carry out concrete pouring.

[0036] like Figures 1 to 5 As shown, multiple formwork lifting mechanisms 3 are in contact with a pair of wooden blocks 201, and the formwork 2 is hoisted to the post-pouring strip 101 of the composite floor slab 1 by the multiple formwork lifting mechanisms 3. The formwork 2 in this application can be constructed using suspended formwork, which is more convenient for installation and dismantling, reduces construction procedures such as the erection of formwork supports, and shortens the construction period.

[0037] The formwork lifting mechanism 3 includes a lower support 301, which contacts the bottom of a pair of wooden blocks 201. Figure 2 As shown, the lower support 301 is used to fix a pair of wooden blocks 201. The dimensions of the lower support 301 are 60mm×60mm×2.5mm.

[0038] Additionally, a tie rod 302 is provided through the lower support member 301, forming a pouring space for cast-in-place concrete between the upper part of the formwork 2 and the lower part of the tie rod 302. An upper support rod 303 is fixedly connected to the tie rod 302, and the tie rod 302 and the upper support rod 303 are perpendicular to each other. The formwork 2, the wooden support 201, and the lower support member 301 are hoisted to the bottom of the composite floor slab 1 through the cooperation of the tie rod 302 and the upper support rod 303. Preferably, the diameter of the tie rod 302 is 14mm.

[0039] Preferably, the pull rod 302 is detachably connected to the lower support 301, so that the pull rod 302 can be reused, saving costs.

[0040] Specifically, the upper support rod 303 spans the top of a pair of composite floor slabs 1, and the template 2, the pad 201 and the lower support 301 are hoisted to the bottom of the composite floor slab 1 through the cooperation of the tie rod 302 and the upper support rod 303.

[0041] In addition, both ends of the upper support rod 303 are connected to pads 3031, which are in contact with the composite floor slab 1 to improve the contact effect between the upper support rod 303 and the composite floor slab 1.

[0042] like Figures 1 to 5 As shown, the tie rod 302 passes through the template 2, and the side wall of the tie rod 302 is provided with a rubber gasket. The rubber gasket contacts the template 2, so that the post-pouring strip 101 is less likely to have grout leakage problems during in-situ pouring.

[0043] like Figures 1 to 5 As shown, a support module 304 is provided on the outside of the pull rod 302. The support module 304 is located on the lower side of the lower support member 301. The support module 304 is used to fix the lower support member 301 under the action of the wing nut 305, so that the lower support member 301 can support the pad 201 and the template 2.

[0044] The support module 304 has a pair of fixed seats 3041 symmetrically connected to its side wall, and a telescopic member 3042 is slidably installed inside the fixed seat 3041. The telescopic member 3042 is used to connect the support block 3045. By sliding the telescopic member 3042 inside the fixed seat 3041, the position of the support block 3045 can be adjusted so that the support block 3045 can better support the lower support member 301 and ensure the fixing effect of the lower support member 301 on the pad 201.

[0045] Additionally, one end of the telescopic component 3042 located within the fixed base 3041 is connected to a limiting plate 3043, and an elastic rope 3044 connects the limiting plate 3043 to the inner wall of the fixed base 3041. When the screw 3046 is loosened, the telescopic component 3042 retracts into the fixed base 3041 under the action of the elastic rope 3044, thereby reducing the overall volume of the support module 304 and facilitating transportation.

[0046] Specifically, a support block 3045 is fixedly connected to the end of the telescopic member 3042 away from the fixed base 3041. The support block 3045 is in contact with the lower support member 301 and can support the lower support member 301.

[0047] In addition, a screw 3046 is threaded onto the side wall of the fixing base 3041, and the screw 3046 corresponds to the telescopic member 3042. Tightening the screw 3046 can fix the position between the fixing base 3041 and the telescopic member 3042, ensuring the support effect of the support block 3045 on the lower support member 301.

[0048] This application replaces the traditional mountain-shaped clip with a support module 304. Compared with the mountain-shaped clip, the support module 304 in this application has a larger support area for the lower support member 301, thus providing a better support effect. At the same time, the use of a flat wing nut 305 to support the lower support member 301 effectively reduces the damage caused to the lower support member 301 by the tip of the mountain-shaped clip.

[0049] like Figures 1 to 5 As shown, the end of the tie rod 302 is threaded with a wing nut 305. The wing nut 305 is used to adjust the distance between the template 2 and the lower support 301. The tie rod 302 presses the template 2 against the bottom surface of the composite floor slab 1 through the support module 304 and the wing nut 305 so that the post-pouring strip 101 can be cast in place.

[0050] In practical use, the template 2 is placed at the bottom of a pair of composite floor slabs 1, and then a pair of wooden blocks 201 and a lower support 301 are placed at the bottom of the template 2. Then, the tie rod 302 passes through the template 2 and the lower support 301, spanning across the pair of composite floor slabs 1. The support module 304 is placed under the lower support 301 and secured with a wing nut 305. That is, the tie rod 302, through the support module 304 and the wing nut 305, presses the template 2 firmly against the bottom surface of the composite floor slab 1, facilitating the in-situ casting of the post-cast strip 101.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A post-pouring segment hanging formwork construction device for a composite floor, which is installed at a post-pouring band of a composite floor, characterized in that, include: The template is connected to the bottom of a pair of composite floor slabs and covers the post-pouring strip. A pair of parallel wooden blocks are provided on the underside of the template. Multiple formwork lifting mechanisms are in contact with a pair of the aforementioned wooden blocks, and the formwork is suspended at the post-pouring strip of the composite floor slab by the multiple formwork lifting mechanisms; The formwork lifting mechanism includes a lower support member that contacts the bottom of a pair of wooden blocks. A pull rod is provided through the lower support member, and an upper support rod is fixedly connected to the pull rod. The pull rod and the upper support rod are perpendicular to each other. The pull rod passes through the template, and a rubber washer is provided on the side wall of the pull rod. The rubber washer contacts the template.

2. The formwork construction device for post-cast sections of composite floor slabs according to claim 1, characterized in that, The wooden support is parallel to the post-cast strip.

3. The formwork construction device for post-cast sections of composite floor slabs according to claim 1, characterized in that, The dimensions of the lower support are 60mm × 60mm × 2.5mm.

4. The formwork construction device for post-cast sections of composite floor slabs according to claim 1, characterized in that, The upper support rod spans across the top of a pair of composite floor slabs, and both ends of the upper support rod are connected to pads, which are in contact with the composite floor slabs.

5. The formwork construction device for post-cast sections of composite floor slabs according to claim 1, characterized in that, A support module is provided on the outside of the tie rod, and the support module is located on the lower side of the lower support member. A wing nut is threaded to the end of the tie rod. The tie rod presses the template against the bottom surface of the composite floor slab through the support module and the wing nut.

6. The formwork construction device for post-cast sections of composite floor slabs according to claim 5, characterized in that, The support module has a pair of fixed seats symmetrically connected to its side wall, and telescopic components are slidably provided inside the fixed seats.

7. The formwork construction device for post-cast sections of composite floor slabs according to claim 6, characterized in that, One end of the telescopic component located inside the fixed base is connected to a limiting plate, and an elastic rope is connected between the limiting plate and the inner wall of the fixed base.

8. The formwork construction device for post-cast sections of composite floor slabs according to claim 7, characterized in that, A support block is fixedly connected to the end of the telescopic member away from the fixed base. The support block is in contact with the lower support member. A screw is threadedly connected to the side wall of the fixed base, and the screw corresponds to the telescopic member.

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