A hinged variable-section elevator shaft mold

Abstract

The present invention relates to the technical field of templates for building structure construction, and provides a hinged variable-section elevator shaft mold, including four-wall templates, corner templates and template retracting and releasing racks; the number of four-wall templates and corner templates is four, the corner templates are right-angle templates, and each corner template is connected to two adjacent four-wall templates by hinges; the template retracting and releasing rack is located at the center of the cylinder mold, and the template retracting and releasing rack is respectively connected to the four four-wall templates through adjustable pull rods; the adjustable pull rods can drive the four-wall templates to approach or move away from the center of the cylinder mold, and then drive the corner templates to approach or move away from the center. The present invention can ensure that the four corners of the cylinder wall are 90 degrees and there are no grooves on the wall. A central template retracting and releasing rack is provided at the center of the cylinder mold. This structure can meet the construction needs, ensure that the elevator shaft is square, and is easy to process. The formwork and demoulding are simple and fast, simple to operate, and save labor and time; the corner templates and the four-wall templates are designed to be tongue-and-groove overlapped, which can effectively prevent leakage, and the concrete at the template joints is flat and has no grooves.

Description

Technical Field

[0001] The invention relates to the technical field of building structure construction templates, and in particular to a hinged variable-section elevator shaft template. Background Art

[0002] At present, in the construction of high-rise buildings, the more common elevator shaft concrete formwork is loose, or uses a multi-hinged integral cylinder formwork, or a corner formwork with a plate-attached cylinder formwork. In construction practice, it is found that the loose formwork takes up too many tower crane hoists, takes a long time to support the formwork, and is labor-intensive and time-consuming; the multi-hinged integral cylinder formwork has arc corners at the corners of the construction structure; demoulding and supporting the formwork are cumbersome, the formwork alignment is time-consuming, the hinges are prone to leakage and cracking, and the wall surface constructed with the corner formwork with a plate-attached cylinder formwork has many grooves, and the wall quality does not meet the construction requirements;

[0003] The actual construction urgently needs a cylinder formwork that can ensure that the four corners of the cylinder wall are 90 degrees, there are no grooves on the wall, ensure that the elevator shaft is square, is easy to process, and has simple and easy formwork and demolding. It is simple to operate, saves labor and time, can effectively prevent leakage, and the concrete at the joints of the formwork is flat and has no grooves. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a hinged variable-section elevator shaft mold to ensure that the elevator shaft is square, easy to process, simple and easy to support and demold, and simple to operate.

[0005] The present invention adopts the following technical solution:

[0006] A hinged variable-section elevator shaft mold, the shaft mold comprising four-wall molds, corner molds and a mold retracting and releasing frame;

[0007] The number of the four-wall templates and the corner templates is 4, the corner templates are right-angle templates, and each corner template is connected to two adjacent four-wall templates via a hinge plate;

[0008] The template retracting and placing frame is located at the center of the drum mold, and the template retracting and placing frame is respectively connected to the four four-wall templates through adjustable pull rods;

[0009] The adjustable pull rod can drive the four-wall templates to approach or move away from the center of the barrel mold, and then drive the corner templates to approach or move away from the center, thereby realizing demoulding and supporting the mold.

[0010] Furthermore, the drum mold also includes a follow-up platform for supporting the four-wall templates, corner templates and template retracting and releasing racks.

[0011] Furthermore, the four-wall template is an overall planar structure, and the panel of the four-wall template is recessed into the vertical frame; the corner template is an adjustable inner corner template, and each side panel protrudes from the vertical frame; the corner template and the four-wall template form a tongue-and-groove overlap structure, and the tongue is provided with a tongue-and-groove adjustment seam.

[0012] Furthermore, the panel of the corner template protrudes from the vertical frame by 70 mm, the panel of the four-wall template is recessed from the vertical frame by 20 mm, and the tongue-and-groove adjustment seam is 5 mm.

[0013] Furthermore, the corner template is provided with 3 groups of hinge plates, which are evenly arranged from top to bottom; each group of hinge plates includes 1 fixed hinge plate and 2 movable hinge plates, and the corner template is connected to the adjacent four-wall templates through the fixed hinge plate and the movable hinge plate. The fixed hinge plate and the corner template are fixed and fixed relative to the corner template. The movable hinge plate is fixed to the fixed hinge plate and the four-wall template by a pin shaft, and the corner template is disengaged by the movement of the four-wall template. The fixed hinge plate and the movable hinge plate are components of the mold support and mold withdrawal mechanism, and work together to realize the template disengagement and support.

[0014] Furthermore, the four-wall formwork is an integral large steel formwork, on which four transverse keels are arranged and welded as a whole, between which movable hinge plate connecting seats are arranged, and on both vertical sides of the large steel formwork are recesses; the movable hinge plate connecting seat of the large steel formwork is connected to the movable hinge plate of the corner formwork through a hinge.

[0015] Furthermore, a roller is arranged at the middle position of the lower end of the four-wall template, and a guide rail of the roller is arranged on the follow-up platform.

[0016] Furthermore, the template retracting and releasing frame includes two sets of upper and lower cross support frames, a wrench, a vertical adjustment screw rod, and a left-right rotating nut;

[0017] The cross support frame is hingedly connected to the keel of the four-wall template via an adjustable pull rod;

[0018] The two groups of cross support frames are connected by the vertical adjustment screw and the left-right rotating nut; rotating the handle at the upper end of the vertical adjustment screw drives the left-right rotating nut of the adjustment screw to move up and down, thereby driving the two groups of cross support frames to perform telescopic movement, thereby realizing the supporting and retracting of the four-wall formwork.

[0019] Furthermore, the following platform is a beam-slab component, and is provided with a guide rail for rollers to slide, a supporting corbel for connecting the following platform to a wall, and a lifting ring for lifting the following platform.

[0020] Furthermore, the number of the guide rails, the lifting rings, and the supporting corbels is 4 each.

[0021] The beneficial effects of the present invention are:

[0022] 1. The corners are not prone to leakage, and the adjustment and alignment are convenient. It is safe and reliable, and the formwork and demoulding are convenient.

[0023] 2. The products are easy to implement standardized management, storage and transportation, saving transportation costs;

[0024] 3. Easy to achieve standardization and serialization, low manufacturing cost and easy production management;

[0025] 4. Wide range of applications. According to the needs of the project, simply configure the wall plane template and assemble it into shape;

[0026] 5. High degree of standardization, most components can be used in rotation, high utilization rate and low investment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1a Shown is a schematic diagram of the vertical cross-sectional structure of a hinged variable-section elevator shaft mold according to an embodiment of the present invention.

[0028] Figure 1b The figure shows a top view of a hinged variable-section elevator shaft formwork after formwork support according to an embodiment of the present invention.

[0029] Figure 1c The figure shows a top view of a hinged variable-section elevator shaft mold after mold closing according to an embodiment of the present invention.

[0030] Figure 2 The figure shows a schematic diagram of the corner template structure in the embodiment; wherein (a) is a front view and (b) is a top view.

[0031] Figure 3 Shown is an enlarged schematic diagram of the corner template structure in the embodiment (the state of the corner template after mold closing).

[0032] Figure 4 The figure shows a schematic diagram of the structure of the four-wall template in the embodiment; wherein (a) is a front view, (b) is a top view, and (c) is a side view.

[0033] Figure 5 The figure shows the structure schematic diagram of the template retracting and releasing frame in the embodiment; wherein (a) is a front view schematic diagram, and (b) is a side view schematic diagram (the template retracting and releasing frame is in the template retracting state).

[0034] Figure 6 The following is a schematic diagram of the structure of the follow-up platform in the embodiment; (a) is a front view, and (b) is a side view.

[0035] Markings in the figure: 1-corner template; 2-four-wall template; 3-template storage rack; 4-follow-up platform; 11-cover plate; 12-hinge axis; 121-hinge axis one; 122-hinge axis two; 123-hinge axis three; 13-fixed hinge plate; 14-movable hinge plate; 21-(four-wall template) panel; 22-(four-wall template) vertical frame; 23-(four-wall template) horizontal frame; 24-lifting ring seat plate; 25-vertical rib; 26-horizontal keel; 27-hinge plate connecting seat; 28-keel seat; 29-roller; 31-wrench; 32-sleeve one; 33-adjustable pull rod; 34-vertical adjustment screw (left and right rotating screw); 35-sleeve two; 36-left and right rotating nut; 37-oblique connecting rod; 41-supporting corbel; 42-main beam; 43-(follow-up platform) panel; 44-vertical beam one; 45-vertical beam two; 46-vertical beam three; 47-cross beam one; 48-lifting ring; 49-cross beam two; 50-(follow-up platform) vertical frame; 51-guide rail. DETAILED DESCRIPTION

[0036] The specific embodiments of the present invention will be described in detail below in conjunction with specific drawings. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be considered isolated, and they can be combined with each other to achieve better technical effects. In the drawings of the following embodiments, the same reference numerals appearing in each drawing represent the same features or components, which can be applied to different embodiments.

[0037] like Figure 1a , Figure 1b , Figure 1c As shown, a hinged variable-section elevator shaft mold according to an embodiment of the present invention comprises a four-wall mold 2, a corner mold 1, a mold retracting rack 3 and a follow-up platform 4; the number of the four-wall mold 2 and the corner mold 1 is 4, the corner mold 1 is a right-angle mold, and each of the corner molds 1 is connected to the two adjacent four-wall molds 2 through a hinge plate; the mold retracting rack 3 is located at the center of the shaft mold, and the mold retracting rack 3 is connected to the shaft mold by an adjustable pull rod 33 (see Figures 1 and Figure 5 ) are respectively connected with the four four-wall templates 2; the adjustable pull rod 33 can drive the four-wall template 2 to approach or move away from the center of the cylinder mold, and then drive the corner template 1 to approach or move away from the center; the follow-up platform 4 is used to support the four-wall template 2, the corner template 1 and the template retracting rack 3.

[0038] Preferably, the corner template 1 can adopt a standard fixed corner template of the same specification, and the four-wall template 2 can be configured with templates of different lengths according to different shaft sizes. The four-wall template 2 is connected to the standard corner template 1 through a fixed hinge plate 13 and a movable hinge plate 14. The corner template 1 and the four-wall template 2 are spliced ​​in a convex-concave form, so that the corner template 1 and the four-wall template 2 are on the same plane after being assembled, and a 5mm adjustment gap is provided between the tongue and groove of the corner template 1 and the four-wall template 2.

[0039] In a specific preferred embodiment, the panel of the four-wall template 2 is recessed into the vertical frame 22; the corner template 1 is an adjustable inner corner template, and each side panel protrudes from the vertical frame; the corner template 1 and the four-wall template 2 form a tongue-and-groove overlap structure, and the tongue is provided with a tongue-and-groove adjustment seam; preferably, the panel of the corner template 1 protrudes from the vertical frame 70mm, the panel 21 of the four-wall template 2 is recessed into the vertical frame 22 by 20mm, and the tongue-and-groove adjustment seam is 5mm.

[0040] The four-wall template 2 can be in various forms. Figure 4 A specific implementation method is given. In this embodiment, the four-wall template 2 is an integral large steel template, and four horizontal keels 26 are arranged on the large steel template and welded to the large steel template as a whole. A movable hinge plate connecting seat 27 is arranged between the horizontal keels 26, and the two vertical sides of the large steel template are notches; the movable hinge plate connecting seat 27 of the large steel template is connected to the movable hinge plate 14 of the corner template 1 through a hinge; for the specific structure, see Figure 4 It should be noted that Figure 4 This is only one mode of the four-wall template 2 and is not intended to limit the protection scope of the present invention.

[0041] In a specific embodiment, Figure 2-Figure 3 As shown, the corner template 1 is provided with three sets of hinge plates, which are evenly arranged from top to bottom; each set of hinge plates includes a fixed hinge plate 13 and two movable hinge plates 14, and the corner template 1 is connected to the adjacent four wall templates 2 through the movable hinge plates 14. It should be noted that Figure 2-Figure 3 The corner template 1 shown is only one of the structural forms, and other forms can be adopted according to the same inventive concept.

[0042] Preferably, a roller 29 is provided at the middle position of the lower end of the four-wall template 2 , and a guide rail 51 of the roller 29 is provided on the follow-up platform 4 .

[0043] In a specific embodiment, Figure 5As shown, the template retracting and releasing frame 3 includes two upper and lower groups of cross support frames, a wrench 31, a vertical adjustment screw (left and right rotating screw 34), and a left and right rotating nut 36; the cross support frame is hingedly connected to the keel of the four-wall template 2 through an adjustable pull rod 33; the two groups of cross support frames are connected through the vertical adjustment screw (left and right rotating screw 34) and the left and right rotating nut 36; the handle 31 at the upper end of the vertical adjustment screw 34 is rotated to drive the left and right rotating nut 36 of the vertical adjustment screw 34 to move up and down, thereby driving the two groups of cross support frames to do telescopic movement, thereby realizing the support and retraction of the four-wall template 2.

[0044] In a specific embodiment, Figure 6 As shown, the follow-up platform 4 is a beam-slab component, and the follow-up platform 4 is provided with a guide rail 51 for roller sliding, a supporting corbel 41 for connecting the follow-up platform 4 with a wall, and a lifting ring 48 for lifting the follow-up platform 4. The number of the guide rail 51, the lifting ring 48, and the supporting corbel 41 are all 4.

[0045] The working principle of the present invention is as follows:

[0046] After the barrel mold is located on the follow-up platform 4, the handle 31 at the upper end of the vertical adjustment screw 34 is rotated to drive the left and right rotation nuts 36 on the vertical adjustment screw 34 to move up and down, driving the two sets of cross support frames to do telescopic movement, thereby driving the four-wall template 2 to achieve mold support and mold collection. When supporting the mold, the movable hinge plate 14 is driven by the four-wall template 2 to push the fixed hinge plate 13 and the corner template 1 to extend outward in a direction at a 45° angle to the four-wall template 2, so that the corner template 1 is supported in place. Conversely, when demolding, the corner template 1 is pulled inward in a direction at a 45° angle to the four-wall template 2 by the four-wall template 2, the movable hinge plate 14, and the fixed hinge plate 13 to achieve demolding. In order to facilitate mold support and demolding and reduce friction, and reduce the mold support and mold collection resistance of the center template retracting frame 3, a roller 29 is provided on the lower side of the four-wall template 2. The roller guide rail 51 of the roller 29 is arranged on the follow-up platform 4 at the lower side of the drum mold; the setting of the follow-up platform 4 is the basis for supporting and fixing the drum mold, and is the operating platform for supporting and demoulding. The height of the drum mold can be adjusted by reserving platform leg fixing slots of different heights on the shaft wall.

[0047] In actual use, after the four corner formworks 1 are basically in place, fine-tune the adjustable tie rod 33 of the center formwork retracting and releasing frame 3 to make the cylinder formwork reach the standard geometric dimensions. Then, tighten the through-wall bolts according to the conventional practice of large formworks, and then pour the concrete. When the concrete reaches the demolding strength during demolding, remove the through-wall bolts, and rotate the center formwork retracting and releasing frame 3 in opposite directions, so that the four wall formworks 2 drive the corner formworks 1 to move inward at the same time. Since the corner formwork 1 lags behind the movement of the four wall formworks 2, and the lag distance is greater than the thickness of the formwork panel, a 5mm adjustment gap (adjustable) is provided between the corner formwork 1 and the four wall formworks 2, so that the corner formwork 1 can move inward by the distance of the adjustment gap of 25mm (adjustable), and the four wall formworks 2 are 50mm away from the wall (adjustable). Make the entire cylinder formwork detach from the concrete surface (see Figure 1c ). At this time, the entire lifting cylinder mold can be raised to the next mold position.

[0048] The present invention can ensure that the four corners of the cylinder wall are 90 degrees and there is no groove on the wall surface. A central template retracting and releasing frame 3 is provided at the center of the cylinder mold. This structure can meet the construction needs, ensure that the elevator shaft is square, and is easy to process. The mold support and demoulding are simple and fast, and the operation is simple, saving labor and time. The corner template 1 and the four wall templates 2 are designed to be tongue-and-groove overlapped, which can effectively prevent slurry leakage, and the concrete at the template joint is flat and has no grooves.

[0049] The present invention is particularly suitable for the construction of elevator shafts with various floor heights of ≤3.3 meters and cross-sectional side lengths of ≥1.5 meters.

[0050] Although several embodiments of the present invention have been given herein, those skilled in the art should understand that the embodiments of the present invention may be modified without departing from the spirit of the present invention. The above embodiments are merely exemplary and should not be used as a limitation on the scope of the present invention.

Claims

1. A hinged variable-section elevator shaft mold, characterized in that: The cylinder mold includes four wall molds, corner molds and a mold storage rack; The number of the four-wall templates and the corner templates is 4, and the corner templates are right-angle templates. Each corner template is connected to two adjacent four-wall templates through hinge plates. Three groups of hinge plates are arranged evenly from top to bottom on the corner templates. Each group of hinge plates includes one fixed hinge plate and two movable hinge plates. The corner templates are connected to adjacent four-wall templates through fixed hinge plates and movable hinge plates respectively. The template retracting frame is located at the center of the drum mold, and the template retracting frame is respectively connected to the four four-wall templates through adjustable pull rods; The adjustable pull rod can drive the four-wall templates to approach or move away from the center of the drum mold, and then drive the corner templates to approach or move away from the center to achieve demoulding and supporting the mold; The template retracting and releasing frame includes two sets of upper and lower cross support frames, a wrench, a vertical adjustment screw rod, and a left-right rotating nut; The cross support frame is hingedly connected to the keel of the four-wall template via an adjustable pull rod; The two groups of cross support frames are connected through the vertical adjustment screw and the left-right rotation nut; the wrench at the upper end of the vertical adjustment screw is rotated to drive the left-right rotation nut of the vertical adjustment screw to move up and down, thereby driving the two groups of cross support frames to perform telescopic movement, thereby realizing the support and retraction of the four-wall formwork; The four-wall template is a planar structure as a whole, and the panel of the four-wall template is recessed into the vertical frame; the corner template is an adjustable inner corner template, and each side panel protrudes from the vertical frame; the corner template and the four-wall template form a tongue-and-groove overlap structure, and the tongue is provided with a tongue-and-groove adjustment seam; The panel of the corner template protrudes 70mm from the vertical frame, the panel of the four-wall template is recessed 20mm from the vertical frame, and the tongue-and-groove adjustment seam is 5mm.

2. The hinged variable-section elevator shaft mold according to claim 1, characterized in that: The drum mold also includes a follow-up platform for supporting the four-wall templates, the corner templates and the template retracting and releasing rack.

3. The hinged variable-section elevator shaft mold according to claim 1, characterized in that: The four-wall formwork is an integral large steel formwork, on which four transverse keels are arranged and welded together, and between the transverse keels a movable hinge plate connecting seat is arranged, and the two vertical sides of the large steel formwork are recessed; the movable hinge plate connecting seat of the large steel formwork is connected to the movable hinge plate of the corner formwork through a hinge.

4. The hinged variable-section elevator shaft mold according to claim 2, characterized in that: A roller is arranged at the middle position of the lower end of the four-wall template, and a guide rail of the roller is arranged on the follow-up platform.

5. The hinged variable-section elevator shaft mold according to claim 2, characterized in that: The following platform is a beam-slab component, and is provided with guide rails for rollers to slide, supporting corbels for connecting the following platform with a wall, and lifting rings for lifting the following platform.

6. The hinged variable-section elevator shaft mold according to claim 5, characterized in that: The number of the guide rails, the lifting rings and the supporting corbels is 4.

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