Embedded formwork system for temporary construction hole plugging and pouring

Abstract

The invention relates to the technical field of concrete pouring formwork systems, in particular to an embedded formwork system for temporary construction hole plugging and pouring, which comprises a structural concrete plate, a reserved hole, an embedded fastener, a steel bottom die, an abutting mechanism and a synchronous linkage mechanism, the pre-embedded fasteners are arranged at the bottom of the structural concrete slab and symmetrically arranged on the two sides of the reserved hole, the bottom of the reserved hole is blocked in the mode that the pre-embedded fasteners and the steel bottom die are combined, it can be guaranteed that the rigidity and strength of the whole structure meet the requirements, and the structure can be safely and reliably used for concrete pouring construction; by means of the convenient combination of the steel bottom die and the embedded fastener, when the reserved hole needs to be closed, only the steel bottom die needs to be plugged into the embedded fastener, a steel pipe formwork system does not need to be additionally erected, installation is very simple and convenient, redundant space in a building does not need to be occupied, and parallel construction of other construction procedures can be facilitated.

Description

Technical Field

[0001] This application relates to the technical field of concrete pouring formwork systems, and in particular to a pre-embedded formwork system for plugging and pouring temporary construction openings. Background Art

[0002] A reserved opening means that during the construction of a building or project, a cavity of a certain shape and size is pre-reserved. These openings are reserved for subsequent installation of equipment, pipelines, cables, or other purposes. The main purpose is to facilitate the installation of subsequent facilities. Inside a building, various equipment, pipelines, cables, etc. may need to be installed. These facilities often need to pass through walls, floors, or the ground. Reserved openings can ensure the smooth installation of these facilities and avoid damage to the main building structure. In addition, reserved openings can also be used for ventilation, lighting, and other purposes.

[0003] Currently, since the size of such temporary openings reserved on the structural slab is generally small, within 1m * 1m, and after the structural construction stage is completed, these reserved openings need to be blocked separately. However, at this time, the original formwork system during the overall structure construction has already been removed, and it is necessary to re-erect the formwork scaffolding to assist in pouring the concrete of the reserved openings.

[0004] In the related art, the general traditional method is to re-erect a steel pipe support formwork scaffolding system at the reserved opening. And at this time, the general building project has entered the decoration stage, so such a formwork system has disadvantages such as complex erection and installation steps and a large occupied space, which hinders the construction of other processes. Summary of the Invention

[0005] In order to solve the problem that when plugging and pouring the reserved opening of the structural slab at present, it is necessary to re-erect the formwork scaffolding, which has complex installation steps and a large occupied space, hindering the construction of other processes, this application provides a pre-embedded formwork system for plugging and pouring temporary construction openings.

[0006] A pre-embedded formwork system for plugging and pouring temporary construction openings provided by this application adopts the following technical solution: A pre-embedded formwork system for plugging and pouring temporary construction openings, comprising: A structural concrete slab, through which a reserved opening is provided. At the bottom of the structural concrete slab, pre-embedded fasteners are provided, and the pre-embedded fasteners are symmetrically arranged on both sides of the reserved opening. A steel bottom formwork is arranged between two adjacent pre-embedded fasteners, and the steel bottom formwork abuts against the bottom of the reserved opening; A clamping mechanism, which is used to support the steel bottom form and make it tightly abut against the structural concrete slab, and the clamping mechanism is arranged in the steel bottom form and is provided with multiple groups, and the clamping mechanism includes a mounting groove, a fixing frame, a linkage plate, a driven plate and a screw rod, the mounting groove is concavely arranged at the bottom of the steel bottom form, the fixing frame is fixed in the mounting groove, the center of the linkage plate of the V-shaped structure is rotatably connected in the fixing frame, and one end of the linkage plate is abutted against the embedded fastener, the driven plate is rotatably connected to the other end of the linkage plate, and one end of the screw rod is fixed at the center of the driven plate; A synchronous linkage mechanism is used to drive the multiple clamping mechanisms to work in synchronous linkage, and an installation cavity is provided inside the steel bottom mold, and the synchronous linkage mechanism is arranged in the installation cavity.

[0007] By adopting the above technical solution, the bottom of the reserved opening is sealed by using a combination of embedded fasteners and steel bottom formwork, which can ensure that the overall structural rigidity and strength meet the requirements, and can be safely and reliably used for concrete pouring construction. Relying on the convenient combination of the two, when the reserved opening needs to be closed, it is only necessary to insert the steel bottom formwork into the embedded fasteners, and there is no need to set up an additional steel pipe formwork system. The installation is very simple and convenient, and there is no need to occupy extra space in the building. It can facilitate the parallel construction of other construction processes, which is conducive to shortening the construction period. At the same time, after the construction is completed, the steel bottom formwork can be circulated and used in the next project, with low material loss and green conservation.

[0008] By utilizing the setting of the clamping mechanism, one end of the linkage plate can be abutted against the embedded fastener when it rotates, thereby lifting the steel bottom formwork as a whole, so that the steel bottom formwork can be tightly abutted against the bottom of the reserved hole. While achieving rapid abutment of the steel bottom formwork, it also ensures the stability of the force at various locations of the steel bottom formwork, avoiding the occurrence of concrete outflow during the pouring process, and through the setting of the synchronous linkage mechanism, multiple clamping mechanisms can be linked synchronously, further improving work efficiency.

[0009] Optionally, the clamping mechanism also includes an adjusting rod, a transmission rod and a universal joint, the transmission rod is rotatably connected to one end of the fixed frame away from the linkage plate, one end of the adjusting rod is connected to the transmission rod through the universal joint, and the other end of the adjusting rod is concavely provided with a screw hole, and the screw rod is threadedly engaged with the screw hole.

[0010] By adopting the above technical solution, the universal joint is used to make the angle between the adjusting rod and the transmission rod change and also to be synchronously linked, and the screw rod is linked by the rotation of the adjusting rod, thereby driving the linkage plate to rotate in the fixed frame.

[0011] Optionally, the synchronous linkage mechanism includes a driving rod, a driving bevel gear, and a driven bevel gear. The driving rod is rotatably connected to the center of the steel bottom mold. The driving bevel gear is coaxially fixed on the driving rod. The driven bevel gear is fixed to one end of the transmission rod away from the universal joint, and the driving bevel gear and the driven bevel gear mesh with each other.

[0012] By adopting the above technical solution, the driving rod drives the driving bevel gear to rotate, and then the driving bevel gear drives the driven bevel gear to engage and link, so that the transmission rod can rotate synchronously.

[0013] Optionally, the synchronous linkage mechanism further includes a ratchet wheel and a ratchet pawl. The ratchet wheel is coaxially fixed on the driving rod and is located on one side of the outer wall of the steel bottom mold. One end of the ratchet pawl is rotatably connected to the outer wall of the steel bottom mold, and the other end is in sliding contact with the ratchet wheel.

[0014] By adopting the above technical solution, the ratchet pawl is used to limit the ratchet wheel to prevent the ratchet wheel and the driving rod from reversing during use.

[0015] Optionally, a reset member is connected to the outer wall of the steel bottom mold, and one end of the reset member is connected to the ratchet pawl.

[0016] By adopting the above technical solution, the elastic force of the reset member enables the ratchet pawl to firmly abut against the ratchet wheel.

[0017] Optionally, a rotating cylinder is coaxially fixed to one end of the driving rod located outside the steel bottom mold, and a polygonal notch is provided in the rotating cylinder.

[0018] By adopting the above technical solution, the polygonal notch enables the staff to quickly cooperate with the rotating cylinder through external tools and drive the rotating cylinder to rotate.

[0019] Optionally, a pulley is rotatably connected to one end of the linkage plate that abuts against the embedded fastener.

[0020] By adopting the above technical solution, the setting of the pulley reduces the frictional resistance between the linkage plate and the embedded fastener.

[0021] Optionally, a guiding groove is provided on the embedded fastener. The guiding groove has an inverted trapezoidal structure, and a plurality of guiding grooves are provided corresponding to the tightening mechanisms one by one.

[0022] By adopting the above technical solution, the guiding groove is used to limit the tightening mechanism, so that one end of the linkage plate can quickly abut against the guiding groove, and then the steel bottom mold and the embedded fastener can be accurately positioned and docked.

[0023] Optionally, a screw hole is penetrated through the embedded fastener, and a locking screw is in threaded fit with the screw hole. One end of the locking screw abuts against the steel bottom formwork.

[0024] By adopting the above technical solution, the locking screw is used to further improve the tightness of the abutment between the steel bottom formwork and the structural concrete slab.

[0025] Optionally, in-slab steel bars are also fixed in the reserved hole.

[0026] By adopting the above technical solution, the structural strength during pouring in the reserved hole is improved by the arrangement of the in-slab steel bars.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. The bottom of the reserved hole is sealed by combining the embedded fastener and the steel bottom formwork, which can ensure that the overall structural stiffness and strength meet the requirements, and can be safely and reliably used for concrete pouring construction. Relying on the convenient combination of the two, when the reserved hole needs to be closed, the steel bottom formwork can be simply inserted into the embedded fastener without additional erection of a steel pipe formwork system. The installation is very simple and convenient, and it does not occupy extra space inside the building, which is conducive to the parallel construction of other construction processes, shortening the construction period. At the same time, after the construction is completed, the steel bottom formwork can be recycled for the next project, with little material loss, which is green and economical. 2. By setting the tightening mechanism, one end of the linkage plate can abut against the embedded fastener when the linkage plate rotates, thereby lifting the whole steel bottom formwork, so that the steel bottom formwork can tightly abut against the bottom of the reserved hole. While realizing the rapid abutment of the steel bottom formwork, the stability of the force on each part of the steel bottom formwork is also ensured, avoiding the situation of concrete flowing out during pouring. Through the setting of the synchronous linkage mechanism, multiple tightening mechanisms can be synchronously linked, further improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic top view of the structural concrete slab of a pre-embedded formwork system for plugging and pouring temporary construction holes in this embodiment.

[0029] Figure 2 It is a schematic bottom view of the structural concrete slab in this embodiment.

[0030] Figure 3 It is a schematic view of the structure of the embedded fastener in this embodiment.

[0031] Figure 4 It is a schematic view of the steel bottom formwork and its overall connection structure in this embodiment.

[0032] Figure 5 It is a schematic view of the structure of the tightening mechanism in this embodiment.

[0033] Figure 6 In this embodiment Figure Five is the enlarged view at position B.

[0034] Figure 7 is the schematic diagram of the fixing frame and its connection structure in this embodiment.

[0035] Figure 8 In this embodiment Figure Four is the enlarged view at position A.

[0036] Explanation of reference numerals: 1, Structural concrete slab; 2, Reserved hole; 3, Embedded fastener; 4, Steel bottom formwork; 5, Tightening mechanism; 51, Installation groove; 52, Fixing frame; 53, Linking plate; 54, Driven plate; 55, Lead screw; 56, Adjusting rod; 57, Transmission rod; 58, Universal joint; 59, Pulley; 6, Synchronous linkage mechanism; 61, Driving rod; 62, Driving bevel gear; 63, Driven bevel gear; 64, Ratchet wheel; 65, Pawl; 66, Reset part; 67, Rotating cylinder; 7, Guide groove; 8, Locking screw; 9, Reinforcing bars in the slab. Detailed implementation manners

[0037] The following further elaborates on this application in conjunction with the attached Figure 1-8 drawings for a more detailed description.

[0038] This application embodiment discloses a pre-embedded formwork system for plugging and pouring temporary construction openings.

[0039] It should be noted that in the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0040] Refer to Figure 1 and Figure 2, A pre-embedded formwork system for plugging and pouring temporary construction openings, comprising a structural concrete slab 1, a reserved opening 2, pre-embedded fasteners 3, a steel bottom formwork 4, a tightening mechanism 5 and a synchronous linkage mechanism 6. A reserved opening 2 is penetrated through the structural concrete slab 1. The bottom of the structural concrete slab 1 is provided with pre-embedded fasteners 3, and the pre-embedded fasteners 3 are symmetrically arranged on both sides of the reserved opening 2. A steel bottom formwork 4 is arranged between two adjacent pre-embedded fasteners 3. The steel bottom formwork 4 abuts against the bottom of the reserved opening 2. The tightening mechanism 5 is arranged inside the steel bottom formwork 4. An installation cavity is arranged inside the steel bottom formwork 4. The synchronous linkage mechanism 6 is arranged inside the installation cavity. By combining the pre-embedded fasteners 3 and the steel bottom formwork 4 to plug the bottom of the reserved opening 2, it can ensure that the overall structural stiffness and strength meet the requirements, can be safely and reliably used for concrete pouring construction, and relying on the convenience of their combination, when it is necessary to close the reserved opening 2, only the steel bottom formwork 4 needs to be inserted into the pre-embedded fasteners 3, without the need to additionally set up a steel pipe formwork system. The installation is very simple and convenient, and it does not occupy extra space inside the building, which can facilitate the parallel construction of other construction processes, is conducive to shortening the construction period. At the same time, after the construction is completed, the steel bottom formwork 4 can be recycled for the next project, with small material loss, green and economical. And by setting the tightening mechanism 5, when the linkage plate 53 rotates, one end of it can abut against the pre-embedded fastener 3, thereby jacking up the whole steel bottom formwork 4, so that the steel bottom formwork 4 can closely abut against the bottom of the reserved opening 2. While realizing the rapid abutment of the steel bottom formwork 4, it also ensures the stability of the force on each part of the steel bottom formwork 4, avoiding the situation of concrete flowing out during the pouring process. And through the setting of the synchronous linkage mechanism 6, multiple tightening mechanisms 5 can be synchronously linked, further improving the work efficiency.

[0041] Refer to Figure 3 and Figure 4 , Specifically, the tightening mechanism 5 includes an installation groove 51, a fixed frame 52, a linkage plate 53, a driven plate 54, a lead screw 55, an adjusting rod 56, a transmission rod 57 and a universal joint 58. By setting the universal joint 58, the angles between the adjusting rod 56 and the transmission rod 57 can change while being synchronously linked. By rotating the adjusting rod 56, the lead screw 55 is threadedly linked, thereby driving the linkage plate 53 to rotate inside the fixed frame 52, so that when the linkage plate 53 rotates, one end of it can abut against the pre-embedded fastener 3, thereby jacking up the whole steel bottom formwork 4, so that the steel bottom formwork 4 can closely abut against the bottom of the reserved opening 2.

[0042] Refer to Figure 5 and Figure 6, in the embodiment of the present application, the installation groove 51 is recessed at the bottom of the steel bottom mold 4, the fixing frame 52 is fixed in the installation groove 51, the center of the linkage plate 53 with a V-shaped structure is rotatably connected in the fixing frame 52, and one end of the linkage plate 53 abuts against the embedded fastener 3. The driven plate 54 is rotatably connected to the other end of the linkage plate 53. One end of the lead screw 55 is fixed at the center of the driven plate 54. The transmission rod 57 is rotatably connected to one end of the fixing frame 52 away from the linkage plate 53. One end of the adjusting rod 56 is connected to the transmission rod 57 through a universal joint 58. The other end of the adjusting rod 56 is recessed with a threaded hole, and the lead screw 55 is in threaded cooperation with the threaded hole.

[0043] Referring to Figure 7 and Figure 8 , in the embodiment of the present application, the synchronous linkage mechanism 6 includes a driving rod 61, a driving bevel gear 62, a driven bevel gear 63, a ratchet 64 and a pawl 65. The pawl 65 is used to limit the ratchet 64 to prevent the ratchet 64 and the driving rod 61 from reversing during use. The driving rod 61 is used to drive the driving bevel gear 62 to rotate, and then the driving bevel gear 62 drives the driven bevel gear 63 to engage and link, so that the transmission rod 57 can rotate synchronously.

[0044] Specifically, the driving rod 61 is rotatably connected to the center of the steel bottom mold 4. The driving bevel gear 62 is coaxially fixed on the driving rod 61. The driven bevel gear 63 is fixed to one end of the transmission rod 57 away from the universal joint 58. The driving bevel gear 62 and the driven bevel gear 63 are meshed with each other. The ratchet 64 is coaxially fixed on the driving rod 61 and is located on one side of the outer wall of the steel bottom mold 4. One end of the pawl 65 is rotatably connected to the outer wall of the steel bottom mold 4, and the other end is in sliding contact with the ratchet 64.

[0045] In the embodiment of the present application, a reset member 66 is connected to the outer wall of the steel bottom mold 4. One end of the reset member 66 is connected to the pawl 65. The elastic force of the reset member 66 enables the pawl 65 to firmly abut against the ratchet 64.

[0046] Specifically, a rotating cylinder 67 is coaxially fixed to one end of the driving rod 61 located outside the steel bottom mold 4. A polygonal notch is provided in the rotating cylinder 67. The polygonal notch enables the staff to quickly cooperate with the rotating cylinder 67 through external tools and drive the rotating cylinder 67 to rotate.

[0047] A pulley 59 is rotatably connected to one end of the linkage plate 53 that abuts against the embedded fastener 3. The setting of the pulley 59 reduces the frictional resistance between the linkage plate 53 and the embedded fastener 3.

[0048] Specifically, in the embodiment of the present application, with respect to the embedded fastener 3, a guiding groove 7 is provided on the embedded fastener 3. The guiding groove 7 is in an inverted trapezoidal structure, and a plurality of guiding grooves 7 are provided in one-to-one correspondence with the abutting mechanism 5. A screw hole is penetrated through the embedded fastener 3, and a locking screw 8 is in threaded fit with the screw hole. One end of the locking screw 8 abuts against the steel bottom form 4. The guiding groove 7 is used to limit the abutting mechanism 5, so that one end of the linkage plate 53 can quickly abut in the guiding groove 7, thereby enabling accurate positioning and docking between the steel bottom form 4 and the embedded fastener 3. Moreover, the locking screw 8 is used to further improve the tightness of the abutment between the steel bottom form 4 and the structural concrete slab 1.

[0049] In the embodiment of the present application, slab reinforcement bars 9 are also fixed in the reserved hole 2, and the structural strength during pouring in the reserved hole 2 is improved by the arrangement of the slab reinforcement bars 9.

[0050] The implementation principle of an embedded formwork system for plugging and pouring temporary construction holes in the embodiment of the present application is as follows: First, arrange the slab reinforcement bars 9 by means of implanting reinforcement bars or splicing, etc. Then insert the steel bottom form 4 into the embedded fastener 3. Subsequently, apply a release agent to the surface of the steel bottom form 4 in contact with the concrete. Then rotate the driving rod 61 through an external tool. At this time, the driving bevel gear 62 drives the driven bevel gear 63 to engage and link, thereby driving the transmission rod 57 to rotate. The transmission rod 57 drives the adjusting rod 56 to rotate through the universal joint 58. At this time, the lead screw 55 is in threaded linkage in the screw hole of the adjusting rod 56, thereby driving the linkage plate 53 to rotate in the fixed frame 52, and making one end of the linkage plate 53 abut against the embedded fastener 3, thereby lifting the entire steel bottom form 4 and abutting it against the bottom of the structural concrete slab 1. Then dock the locking screw 8 with the embedded fastener 3 and abut and lock it with the steel bottom form 4.

[0051] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An embedded formwork system for plugging and pouring temporary construction openings, characterized in that, Comprising: A structural concrete slab (1) is provided with a reserved hole (2) penetrating therethrough. An embedded fastener (3) is provided at the bottom of the structural concrete slab (1), and the embedded fasteners (3) are symmetrically arranged on both sides of the reserved hole (2). A steel bottom formwork (4) is arranged between two adjacent embedded fasteners (3), and the steel bottom formwork (4) abuts against the bottom of the reserved hole (2). A tightening mechanism (5) is used to support the steel bottom formwork (4) and make it closely abut against the structural concrete slab (1). The tightening mechanism (5) is arranged inside the steel bottom formwork (4) and there are multiple groups. The tightening mechanism (5) includes an installation groove (51), a fixing frame (52), a linkage plate (53), a driven plate (54), and a lead screw (55). The installation groove (51) is recessed in the bottom of the steel bottom formwork (4). The fixing frame (52) is fixed in the installation groove (51). The center of the V-shaped linkage plate (53) is rotatably connected inside the fixing frame (52), and one end of the linkage plate (53) abuts against the embedded fastener (3). The driven plate (54) is rotatably connected to the other end of the linkage plate (53). One end of the lead screw (55) is fixed at the center of the driven plate (54). A synchronous linkage mechanism (6) is used to drive multiple tightening mechanisms (5) to synchronously link. An installation cavity is provided inside the steel bottom formwork (4), and the synchronous linkage mechanism (6) is arranged in the installation cavity.

2. The embedded formwork system for plugging and pouring of temporary construction openings according to claim 1, characterized in that, The tightening mechanism (5) further includes an adjusting rod (56), a transmission rod (57), and a universal joint (58). The transmission rod (57) is rotatably connected to the end of the fixing frame (52) far from the linkage plate (53). One end of the adjusting rod (56) is connected to the transmission rod (57) through the universal joint (58). The other end of the adjusting rod (56) is recessed with a threaded hole, and the lead screw (55) is in threaded cooperation with the threaded hole.

3. The embedded formwork system for plugging and pouring of temporary construction openings according to claim 2, wherein, The synchronous linkage mechanism (6) includes a driving rod (61), a driving bevel gear (62), and a driven bevel gear (63). The driving rod (61) is rotatably connected to the center of the steel bottom formwork (4). The driving bevel gear (62) is coaxially fixed on the driving rod (61). The driven bevel gear (63) is fixed on the end of the transmission rod (57) far from the universal joint (58), and the driving bevel gear (62) and the driven bevel gear (63) are meshed with each other.

4. The embedded formwork system for temporary construction opening plugging and pouring according to claim 3, characterized in that, The synchronous linkage mechanism (6) further includes a ratchet wheel (64) and a ratchet pawl (65). The ratchet wheel (64) is coaxially fixed on the driving rod (61) and is located on one side of the outer wall of the steel bottom formwork (4). One end of the ratchet pawl (65) is rotatably connected to the outer wall of the steel bottom formwork (4), and the other end is in sliding contact with the ratchet wheel (64).

5. The embedded formwork system for plugging and casting of temporary construction openings according to claim 4, characterized in that, A reset member (66) is connected to the outer wall of the steel bottom formwork (4), and one end of the reset member (66) is connected to the ratchet pawl (65).

6. The embedded formwork system for temporary construction opening plugging and pouring according to claim 3, characterized in that, One end of the active rod (61) located outside the steel bottom mold (4) is coaxially fixed with a rotating cylinder (67), and a polygonal notch is arranged inside the rotating cylinder (67).

7. An embedded formwork system for plugging and pouring of temporary construction openings according to claim 1, characterized in that, One end of the linkage plate (53) in contact with the embedded fastener (3) is rotatably connected with a pulley (59).

8. The embedded formwork system for plugging and pouring of temporary construction openings according to claim 1, wherein, A guiding groove (7) is arranged on the embedded fastener (3). The guiding groove (7) is in an inverted trapezoidal structure, and a plurality of guiding grooves (7) are arranged in one-to-one correspondence with the pressing mechanism (5).

9. The embedded formwork system for plugging and casting of temporary construction openings according to claim 1, characterized in that, A screw hole is penetrated through the embedded fastener (3), and a locking screw (8) is in threaded fit with the screw hole. One end of the locking screw (8) abuts against the steel bottom mold (4).

10. The embedded formwork system for temporary construction opening plugging and pouring according to claim 1, characterized in that, Inner-slab steel bars (9) are further fixed in the reserved hole (2).

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