Elevator shaft climbing formwork

Abstract

The utility model relates to the technical field of constructional engineering equipment, in particular to an elevator shaft climbing formwork. The formwork bearing bracket is supported on a finished concrete structure in the elevator shaft, the formwork guide rail is locked through the second locking component, so that the construction and use safety of the formwork in the elevator shaft is guaranteed, even if one anti-falling measure fails, the other anti-falling measure still has the anti-falling effect of the formwork, and the safety of the elevator shaft is guaranteed. The safety and reliability of formwork construction and use are improved, and casualties and heavy property losses are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering equipment, in particular to an elevator shaft climbing formwork. Background Art

[0002] With the continuous development of the country, more and more high-rise and super-high-rise buildings are emerging. Among all construction safety fatalities, scaffolding falling from high altitude accounts for the vast majority of construction accidents. Formwork safety falling accidents are extremely serious and may cause casualties and major property losses.

[0003] At present, the integral lifting formwork used in the construction industry mostly utilizes the load-bearing brackets at the bottom of the formwork to support the completed concrete structure during the construction process to bear the weight of the formwork and the construction load. Since the load-bearing brackets are the only anti-falling measure, once the anti-falling measure fails during the construction process, a safety fall accident may occur. In order to avoid unnecessary casualties and major property losses, a safer and more reliable formwork is needed. Utility Model Content

[0004] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides an elevator shaft climbing formwork, which improves the safety and reliability of the formwork.

[0005] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0006] An elevator shaft climbing formwork is used for constructing the internal concrete structure of a high-rise elevator shaft, especially for the construction of the elevator shaft concrete structure of a high-rise or super-high-rise commercial and office building, and is characterized in that it comprises a frame and a base, wherein the base is installed at the bottom of the frame, the base comprises a pair of parallel load-bearing steel beams, and retractable load-bearing brackets are respectively provided at both ends of the load-bearing steel beams, the load-bearing brackets are slidably connected to the load-bearing steel beams, and the load-bearing brackets can be telescopically moved on the load-bearing steel beams; it also comprises an anti-falling device, which comprises a pair of unidirectional motion formwork guide rails, a wall-mounted support, and a second locking component, the formwork guide rails are vertically centered on a pair of side surfaces of the frame, the formwork guide rails are provided with a group of protrusions along the length direction, and the wall-mounted support can be detachably installed On the corresponding concrete structure inside the elevator shaft, the second locking component includes: a one-way locking block and a limit block. The one-way locking block is rotatably installed on the wall-attached support, and the limit block is fixedly installed on the wall-attached support. The end of the one-way locking block away from the rotating shaft core rests on the top of the limit block, and the end of the one-way locking block near the limit block is on the inner side of the convex part. The limit block is provided with a notch running through the upper and lower parts, and the notch corresponds to the convex part; it also includes: a formwork assembly, and the formwork assembly includes: a formwork hanging beam and a shaped formwork. The formwork hanging beam is installed on the top of the frame, and the end of the formwork hanging beam is connected to the top of the vertical formwork. The formwork is located outside the frame, and the number of the formwork corresponds one-to-one to the side of the concrete structure inside the elevator shaft, and the formwork is circumferentially closed and connected.

[0007] Based on the above structure, an elevator shaft climbing formwork of the present application, during the construction of the concrete structure inside the elevator shaft, the load-bearing brackets at both ends of the load-bearing steel beam are extended and supported on the completed elevator shaft structure walls and beams to bear the deadweight of the formwork and the construction load. The anti-fall device provided on the formwork ensures that even in the event of failure of the load-bearing brackets, the formwork will not suffer a safe falling accident. During the upward sliding of the formwork guide rail, the protrusion can pass through the notch. During this process, the protrusion can push the one-way locking block to rotate upward to the outside of the protrusion; the formwork guide rail is During the downward sliding process, since one end of the one-way lock block near the limit block is on the inner side of the protrusion, the protrusion is limited by the one-way lock block near the limit block and abuts against the limit block together with the one-way lock block. Since the limit block can limit the one-way lock block from rotating downward, the formwork guide rail is limited on the one-way lock block as a whole; thus, the formwork is limited to prevent it from falling. The wall-mounted support can be detachably installed inside the elevator shaft. When a pair of wall-mounted supports on the nth floor of the elevator shaft are detached from the formwork guide rail, the wall-mounted support on the nth floor can be removed and installed at the corresponding position on the n+3th floor, realizing the recycling of the wall-mounted support. The formwork is correspondingly fitted to the surface of the concrete structure inside the elevator shaft to be constructed. The formwork inside the elevator shaft is circumferentially closed and connected to form an inner tire formwork of the concrete structure inside the elevator shaft. After the formwork is reinforced, concrete can be poured to complete the construction of the concrete structure inside the elevator shaft.

[0008] Furthermore, in the present application, an elevator shaft climbing formwork frame includes a set of formwork frames connected in an upper and lower stack, and the formwork frames are fixed formwork frames. As a preferred embodiment of the present application, the frame of the elevator shaft climbing formwork frame in the present application is formed by stacking and connecting formwork frames in an upper and lower stack, and this design is to facilitate the installation, removal and transportation of the frame.

[0009] Furthermore, an elevator shaft climbing formwork in the present application also includes a first locking component, a first positioning hole is respectively provided on the side surfaces of both ends of the load-bearing steel beam, a second positioning hole is provided on the load-bearing corbel, and the first locking component limits the load-bearing corbel so that the load-bearing corbel is locked in an extended state. When the load-bearing corbel is in the extended state, the load-bearing corbel extends out of the outer edge of the frame, and the first positioning hole corresponds to the second positioning hole. The first locking component passes through the first positioning hole and the second positioning hole. When the load-bearing corbel is in the retracted state, the load-bearing corbel retracts to the inner side of the outer edge of the frame. As a preferred embodiment of the present application, the first locking component in an elevator shaft climbing formwork in the present application limits the load-bearing corbel so that the load-bearing corbel is locked in an extended or retracted state.

[0010] Furthermore, in an elevator shaft climbing formwork in the present application, the anti-fall device includes a slide groove, and the formwork guide rail is slidably arranged in the slide groove. As a preferred embodiment of the present application, the slide groove in an elevator shaft climbing formwork in the present application is used to set the formwork guide rail and guide and prevent the formwork guide rail from overturning.

[0011] Furthermore, an elevator shaft climbing formwork in the present application also includes a lifting mechanism, wherein the lifting mechanism includes: a lifting hoist, a lifting hanging bracket, the lifting hoist is provided with: a lifting hoist hook, a lifting chain, a lower sprocket assembly, and a lifting hook, the lifting hoist hook is hung on the outside of the frame, the lifting hoist is connected to the lower end of the lifting hoist hook, the lifting hoist is connected to one end of the lifting chain, the end of the lifting chain away from the lifting hoist is connected to the upper end of the lower sprocket assembly, the lower end of the lower sprocket assembly is connected to the lifting hook connecting end, the lifting hook hook end is connected to the base, a connecting bracket is provided on the lifting chain, the connecting bracket is connected to the lifting hanging bracket, the lifting hanging bracket can be detachably installed on the corresponding concrete structure inside the elevator shaft, and the lifting hanging bracket is located between the lifting hoist hook and the lifting hook. As a preferred solution of the present application, a lifting mechanism in an elevator shaft climbing formwork of the present application is used for lifting the formwork as a whole. When lifting is required, the lifting hoist is started to make the lifting chain move in a circulation motion, and the lifting hoist moves relative to the lifting hanging bracket in a direction away from the lifting hanging bracket, and the distance between the lifting hoist and the lifting hanging bracket becomes longer. The lifting hook moves relative to the lifting hanging bracket in a direction close to the lifting hanging bracket, and the distance between the lifting hanging bracket and the lifting hook is shortened. The formwork moves upward relative to the lifting hanging bracket, thereby achieving the lifting effect of the formwork. The lifting hanging bracket can be detachably installed on the corresponding concrete structure layer inside the elevator shaft, so that the lifting hanging bracket can be removed later for turnover use.

[0012] Furthermore, an elevator shaft climbing formwork in the present application further includes: a walkway plate platform, a flap, and a ladder. The walkway plate platform is installed inside the formwork, the flap is set on the formwork adjacent to the base, the flap is set on the outer side of the formwork, the ladder is installed inside the formwork, and the ladder connects each walkway plate platform. As a preferred embodiment of the present application, an elevator shaft climbing formwork in the present application is provided with a walkway plate platform and a ladder on each floor inside the frame. Operators can construct the concrete structure inside the elevator shaft at different heights inside the frame. When the flap is in the open state, the flap is perpendicular to the outer side of the formwork. The function of the flap is to prevent materials or tools on the frame from falling and not directly falling to the bottom of the elevator shaft.

[0013] Furthermore, in the elevator shaft climbing formwork of the present application, the formwork assembly further includes a formwork hoisting chain, the ends of which are connected to the end of the formwork hanging beam and the top of the formwork, respectively. As a preferred embodiment of the present application, the formwork hoisting chain in the elevator shaft climbing formwork of the present application is used to suspend the formwork, and during the formwork climbing process, drives the formwork to rise to the next construction position.

[0014] Furthermore, in the present application, an elevator shaft climbing formwork, the formwork includes a support portion, the support portion being mounted on the bottom of the formwork near the frame, and the support portion being detachably mounted on the frame when the formwork is installed and reinforced. As a preferred embodiment of the present application, the support portion in the elevator shaft climbing formwork of the present application is used to reinforce the formwork and ensure the stability of the formwork during the concrete pouring process inside the elevator shaft.

[0015] Furthermore, in the present application, the support portion of the elevator shaft climbing formwork is detachably mounted on the top of the formwork guide rail. As a preferred embodiment of the present application, the support portion of the elevator shaft climbing formwork can also be mounted on the top of the formwork guide rail.

[0016] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0017] The utility model provides an elevator shaft climbing formwork frame. By arranging two anti-falling measures, namely a load-bearing corbel and an anti-falling device, even if one of the anti-falling measures fails, the other anti-falling measure still has the anti-falling effect of the formwork frame, thereby greatly improving the safety and reliability of the formwork frame and avoiding unnecessary casualties and major property losses. In addition, the anti-falling device has a simple structure, low manufacturing cost and good economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the cross-sectional structure of an elevator shaft climbing formwork in an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the longitudinal cross-section structure of an elevator shaft climbing formwork in an embodiment of the present application;

[0020] Figure 3 for Figure 2 A partial enlarged view of the area C in the middle circle;

[0021] Figure 4 This is a cross-sectional view of an anti-fall device in an elevator shaft climbing formwork in an embodiment of the present application:

[0022] Figure 5 This is a schematic diagram of the load-bearing steel beam and load-bearing corbel structure of an elevator shaft climbing formwork in an embodiment of the present application;

[0023] Figure 6 for Figure 2 Schematic diagram of the AA section structure;

[0024] Figure 7 for Figure 2 Schematic diagram of the BB cross-section structure.

[0025] In the figure: 1-frame; 11-formwork; 2-base; 21-load-bearing steel beam; 211-first positioning hole; 23-load-bearing corbel; 231-second positioning hole; 4-anti-fall device; 41-formwork guide rail; 411-convex part; 42-wall support; 43-second locking component; 431-one-way locking block; 432-limiting block; 44-slide; 5-formwork assembly; 51-formwork hanging beam; 52-shaped formwork; 521-support part; 53-formwork lifting chain; 6-lifting mechanism; 63-lifting hoist; 631-lifting hoist hook; 632-lifting chain; 633-connecting bracket; 634-lower sprocket assembly; 635-lifting hook; 64-lifting hanging bracket; 7-walkway platform; 8-flip plate; 9-ladder. DETAILED DESCRIPTION Example

[0026] like Figure 1 、 2 , An elevator shaft climbing formwork shown in 4 is used for constructing the internal concrete structure of a high-rise elevator shaft, especially: the construction of the elevator shaft concrete structure of a high-rise and super-high-rise commercial and office building, characterized in that it comprises: a frame 1, a base 2, the base 2 is installed at the bottom of the frame 1, the base 2 comprises a pair of parallel load-bearing steel beams 21, and retractable load-bearing brackets 23 are respectively provided at both ends of the load-bearing steel beams 21, the load-bearing brackets 23 are slidably connected to the load-bearing steel beams 21, and the load-bearing brackets 23 can be telescopically moved on the load-bearing steel beams 21; it also comprises: an anti-falling device 4, the anti-falling device 4 comprises a pair of unidirectional motion formwork guide rails 41, a wall-mounted support 42, and a second locking component 43, the formwork guide rails 41 are vertically centered on a pair of side surfaces of the frame 1, the formwork guide rails 41 are provided with a group of protrusions 411 along the length direction, and the wall-mounted support 42 can be detachably installed on the corresponding concrete supports inside the elevator shaft. Structurally, the second locking component 43 includes: a one-way locking block 431 and a limit block 432. The one-way locking block 431 is rotatably mounted on the wall-mounted support 42, and the limit block 432 is fixedly mounted on the wall-mounted support 42. The end of the one-way locking block 431 away from the rotating shaft core rests on the limit block 432. The end of the one-way locking block 431 near the limit block 432 is on the inner side of the protrusion 411. The limit block 432 is provided with a notch running through the upper and lower parts, and the notch corresponds to the protrusion 411; it also includes: a formwork assembly 5, which includes: a formwork hanging beam 51 and a shaping formwork 52. The formwork hanging beam 51 is mounted on the top of the frame 1, and the end of the formwork hanging beam 51 is connected to the top of the vertical shaping formwork 52. The shaping formwork 52 is located on the outside of the frame 1. The number of the shaping formwork 52 corresponds one-to-one to the side of the concrete structure inside the elevator shaft, and the shaping formwork 52 is circumferentially closed and connected.

[0027] In this embodiment, the end of the template hanging beam 51 is connected to the top of the vertical shaping template 52 through a hand winch.

[0028] In this embodiment, the spacing between the protrusions 411 is 80 mm, six wall-mounted supports 42 are used, and four forming templates 52 are used.

[0029] In this embodiment, the frame 1 includes a group of formwork frames 11 stacked and connected up and down. The formwork frames 11 are fixed formwork frames. Specifically, the fixed formwork frames are fully assembled fixed elevator shaft climbing formwork frames.

[0030] In this embodiment, the formwork 11 is composed of a group of rods, including: φ89 round tubes, φ48 round tubes, and L63*6 angle steels. Ten formworks 11 are used to form the frame 1.

[0031] like Figure 5 、 6 As shown, in this embodiment, a first locking component is further included. First positioning holes 211 are respectively provided on the side surfaces of both ends of the load-bearing steel beam 21, and a second positioning hole 231 is provided on the load-bearing corbel 23. The first locking component limits the load-bearing corbel 23 so that the load-bearing corbel 23 is locked in an extended state. When the load-bearing corbel 23 is in the extended state, the load-bearing corbel 23 extends out of the outer edge of the frame body 1. The first positioning hole 211 corresponds to the second positioning hole 231. The first locking component passes through the first positioning hole 211 and the second positioning hole 231. When the load-bearing corbel 23 is in the retracted state, the load-bearing corbel 23 retracts to the inner side of the outer edge of the frame body 1. Specifically, the first locking component adopts a pin that is compatible with the first positioning hole 211 and the second positioning hole 231. In this embodiment, two positioning holes are provided on the load-bearing steel beam 21, and three positioning holes are provided on the load-bearing corbel 23.

[0032] like Figure 3 As shown, in this embodiment, the anti-falling device 4 includes a slide groove 44, and the mold frame guide rail 41 is slidably set in the slide groove 44.

[0033] In this embodiment, the slide groove 44 is provided on the wall-mounted support 42 .

[0034] In this embodiment, a lifting mechanism 6 is also included, and the lifting mechanism 6 includes: a lifting hoist 63, a lifting hanging bracket 64, and the lifting hoist 63 is provided with: a lifting hoist hook 631, a lifting chain 632, a lower sprocket assembly 634, and a lifting hook 635. The lifting hoist hook 631 is hung on the outside of the frame 1, and the lifting hoist 63 is connected to the lower end of the lifting hoist hook 631. The lifting hoist 63 is connected to one end of the lifting chain 632, and the lifting chain 632 is away from the lifting hoist. One end of 63 is connected to the upper end of the lower sprocket assembly 634, the lower end of the lower sprocket assembly 634 is connected to the connecting end of the lifting hook 635, the hook end of the lifting hook 635 is connected to the base 2, and a connecting bracket 633 is provided on the lifting chain 632, and the connecting bracket 633 is connected to the lifting hanging bracket 64. The lifting hanging bracket 64 can be detachably installed on the corresponding concrete structure layer inside the elevator shaft, and the lifting hanging bracket 64 is located between the lifting hoist hook 631 and the lifting hook 635.

[0035] In this embodiment, the lifting mechanism 6 is a prior art, and its specific structure can refer to a hoist-type mold frame lifting mechanism disclosed in Chinese utility model patent publication number CN210217094U.

[0036] like Figure 7 As shown, in this embodiment, it also includes: a walkway plate platform 7, a flap 8, and a ladder 9. The walkway plate platform 7 is installed inside the formwork 11, the flap 8 is arranged on the formwork 11 adjacent to the base 2, the flap 8 is arranged on the outer side of the formwork 11, and the ladder 9 is installed inside the formwork 11. The ladder 9 connects each walkway plate platform 7.

[0037] In this embodiment, the walkway platform 7 is constructed using 50mm square tubes and L40 angle steel, and the flap 8 is constructed using 3mm patterned steel plates.

[0038] In this embodiment, the formwork assembly 5 further includes: a formwork hanging chain 53 , and both ends of the formwork hanging chain 53 are respectively connected to the end of the formwork hanging beam 51 and the top of the shaping formwork 52 .

[0039] In this embodiment, the shaping template 52 includes a support portion 521 , which is installed at the bottom of the shaping template 52 near the frame 1 . When the shaping template 52 is installed and reinforced, the support portion 521 can be detachably installed on the frame 1 .

[0040] In this embodiment, the support portion 521 is detachably mounted on the top of the mold frame guide rail 41 .

[0041] The above description of the technical principles of the present invention in conjunction with specific embodiments is intended solely to illustrate the principles of the present invention and is not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. An elevator shaft climbing formwork, used for constructing the internal concrete structure of a high-rise elevator shaft, characterized by: include: A frame (1) and a base (2), wherein the base (2) is mounted on the bottom of the frame (1), and the base (2) comprises a pair of parallel load-bearing steel beams (21), and retractable load-bearing brackets (23) are respectively provided at both ends of the load-bearing steel beams (21), and the load-bearing brackets (23) are slidably connected to the load-bearing steel beams (21), and the load-bearing brackets (23) can move telescopically on the load-bearing steel beams (21); An anti-fall device (4), the anti-fall device (4) comprising a pair of one-way motion formwork guide rails (41), a wall-mounted support (42), and a second locking component (43), wherein the formwork guide rails (41) are vertically and centrally arranged on a pair of side surfaces of the frame (1), the formwork guide rails (41) are provided with a group of protrusions (411) along the length direction, the wall-mounted support (42) is detachably mounted on a corresponding concrete structure inside the elevator shaft, and the second locking component (43) comprises: a one-way locking block (431) , a limit block (432), the one-way locking block (431) is rotatably mounted on the wall-mounted support (42), the limit block (432) is fixedly mounted on the wall-mounted support (42), the end of the one-way locking block (431) away from the rotating shaft core abuts against the upper side of the limit block (432), the end of the one-way locking block (431) close to the limit block (432) is on the inner side of the protrusion (411), and the limit block (432) is provided with a notch running through from top to bottom, and the notch corresponds to the protrusion (411); A template assembly (5), the template assembly (5) comprising: a template hanging beam (51), a fixed template (52), the template hanging beam (51) being installed on the top of a frame (1), the end of the template hanging beam (51) being connected to the top of a vertical fixed template (52), the fixed template (52) being located outside the frame (1), the number of the fixed templates (52) corresponding to the side surface of the concrete structure inside the elevator shaft, and the fixed templates (52) being circumferentially closed and connected.

2. The elevator shaft climbing formwork according to claim 1, characterized in that: The frame (1) comprises a set of mold frames (11) connected in an upper and lower stacked manner, and the mold frames (11) are shaped mold frames.

3. The elevator shaft climbing formwork according to claim 1, characterized in that: The invention also includes a first locking component, wherein the side surfaces of both ends of the load-bearing steel beam (21) are respectively provided with first positioning holes (211), and the load-bearing corbel (23) is provided with a second positioning hole (231). The first locking component limits the load-bearing corbel (23) so that the load-bearing corbel (23) is locked in an extended state. When the load-bearing corbel (23) is in the extended state, the load-bearing corbel (23) extends out of the outer edge of the frame (1). The first positioning hole (211) corresponds to the second positioning hole (231). The first locking component passes through the first positioning hole (211) and the second positioning hole (231). When the load-bearing corbel (23) is in the retracted state, the load-bearing corbel (23) retracts to the inner side of the outer edge of the frame (1).

4. The elevator shaft climbing formwork according to claim 1, characterized in that: The anti-falling device (4) comprises a slide groove (44), and the mold frame guide rail (41) is slidably arranged in the slide groove (44).

5. The elevator shaft climbing formwork according to claim 1, characterized in that: The lifting mechanism (6) further comprises a lifting hoist (63), a lifting hanging bracket (64), the lifting hoist (63) being provided with a lifting hoist hook (631), a lifting chain (632), a lower sprocket assembly (634), and a lifting hook (635), the lifting hoist hook (631) being hung on the outside of the frame (1), the lifting hoist (63) being connected to the lower end of the lifting hoist hook (631), the lifting hoist (63) being connected to one end of the lifting chain (632), and the lifting chain (632) being away from the lifting hoist ( One end of the lifting chain (63) is connected to the upper end of the lower sprocket assembly (634), the lower end of the lower sprocket assembly (634) is connected to the connecting end of the lifting hook (635), the hook end of the lifting hook (635) is connected to the base (2), a connecting bracket (633) is provided on the lifting chain (632), the connecting bracket (633) is connected to the lifting hanging bracket (64), the lifting hanging bracket (64) is detachably mounted on the corresponding concrete structure layer inside the elevator shaft, and the lifting hanging bracket (64) is located between the lifting hoist hook (631) and the lifting hook (635).

6. The elevator shaft climbing formwork according to claim 1, characterized in that: Also includes: A walkway platform (7), a flap (8), and a ladder (9), wherein the walkway platform (7) is installed inside a formwork (11), the flap (8) is arranged on a formwork (11) adjacent to a base (2), the flap (8) is arranged on an outer side of the formwork (11), and the ladder (9) is installed inside the formwork (11), and the ladder (9) connects each walkway platform (7).

7. The elevator shaft climbing formwork according to claim 1, characterized in that: The template assembly (5) further comprises: a template hanging chain (53), wherein both ends of the template hanging chain (53) are respectively connected to the end of the template hanging beam (51) and the top of the fixed template (52).

8. The elevator shaft climbing formwork according to claim 7, characterized in that: The shaping template (52) comprises a support portion (521), wherein the support portion (521) is mounted on the bottom of the shaping template (52) on a side close to the frame (1); when the shaping template (52) is installed and reinforced, the support portion (521) can be detachably mounted on the frame (1).

9. The elevator shaft climbing formwork according to claim 8, characterized in that: The support portion (521) is detachably mounted on the top of the mold frame guide rail (41).

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