Top plate formwork erecting device for high and large closed space

Abstract

The utility model discloses a high and large closed space roof formwork erecting device, which relates to the technical field of constructional engineering and comprises I-shaped steel, a metal hanging bracket is arranged on the outer side of the I-shaped steel, a pulley stabilizing groove is formed in the lower side of the metal hanging bracket, and a plurality of fixing springs are fixedly connected to the upper side of the metal hanging bracket. When the formwork and the supporting system are dismantled, only the I-shaped steel, the secondary keel and the formwork are arranged, no steel pipe frame body needs to be dismantled, and when the I-shaped steel is dismantled, in order to avoid the situation that the I-shaped steel is clamped in a reserved hole and cannot be dismantled due to the fact that the end of the I-shaped steel sinks and the inner I-shaped steel and the outer I-shaped steel are unbalanced and tilted, the formwork is dismantled. The spring hangers are arranged in the range of the I-shaped steel every 1.5 m to jack the ends of the I-shaped steel and prevent the ends of the I-shaped steel from sinking, and metal pulleys are arranged at the positions of the metal hangers and the reserved holes of the side walls to reduce friction force and facilitate construction in order to avoid large friction force and large dragging difficulty when the I-shaped steel is dragged outwards.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a device for supporting a top plate formwork in a tall and large enclosed space. Background Art

[0002] With the development of society, in the field of modern construction, the inspection of safety hazards in closed and semi-closed spaces such as pools and biogas tanks has become more stringent, and there are more requirements for the safety of operators. Reducing the construction volume in closed spaces and shortening the working time in closed spaces are also effective measures to effectively avoid safety hazards.

[0003] For enclosed spaces, taking enclosed pools as an example, because water pools have high requirements for the waterproofness of the building structure, during construction, as few post-cast joints as possible are set on the walls and roof plates, especially the roof plates, which should be cast in one go as much as possible to reduce hidden dangers of water seepage such as construction joints. Reserved holes are left at the position of the fixed roof plate, but there is a risk of water seepage, so reservations are generally not allowed and the roof plate is required to be cast in one go.

[0004] Conventional roof construction uses a full-floor scaffolding as the support system, and then supports the keel and formwork to carry out roof construction. However, the closed space or semi-closed space has no doorways or windows, and some small inspection openings are set on the top of the wall. Under this working condition, after the roof construction is completed, the workload of dismantling the frame and formwork is large, and it is difficult to export materials. They can only be exported from the inspection opening. The process is complicated, and the construction workers have a large workload and long working time in the closed space, which poses a great safety hazard. Therefore, it is very necessary to design a roof formwork supporting device that is easy to dismantle and has strong practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a high and large closed space top plate formwork supporting device to solve the problems raised in the above-mentioned background technology in view of the existing technical defects.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a device for supporting the top plate formwork of a tall enclosed space, comprising an I-beam, a metal hanger is provided on the outer side of the I-beam, a pulley stabilizing groove is provided on the lower side of the metal hanger, a plurality of fixing springs are fixedly connected to the upper side of the metal hanger, two side walls are provided on the lower side of the I-beam, a second metal pulley is connected to the upper bearing of the side wall, the second metal pulley is slidably connected to the pulley stabilizing groove, top plates are provided on both sides of the upper side of the I-beam, a water stop strip is provided on one side of the top plate, a plurality of secondary keels are also provided on the upper side of the I-beam, a formwork is provided on the upper side of the secondary keel, the left and right sides of the upper side of the formwork are pressed by the top plate, and a top plate structure casting is also provided on the upper side of the formwork.

[0007] The model of the I-beam is not less than 28a.

[0008] The inner lower bearing of the I-beam is connected to two first metal pulleys.

[0009] Metal bars are provided on both sides of each of the first metal pulleys, and the metal bars are fixedly connected to the I-beams.

[0010] The first metal pulley and the second metal pulley are both circular metal sheets with a thickness of not less than 5 mm and a diameter of 20 mm.

[0011] The bottom of the fixing spring is provided with a thread, the top of the fixing spring is provided with a hook, and the outer side of the fixing spring is provided with a circular metal sleeve.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: when the formwork and the support system are dismantled, only the I-beam, the secondary keel and the formwork are required to be dismantled, and no steel pipe frame needs to be dismantled; when the I-beam is dismantled, in order to prevent the end of the I-beam from sinking and the inner and outer I-beams from becoming unbalanced and tilted, which causes the I-beam to be stuck in the reserved opening and unable to be dismantled, a spring hanger is arranged every 1.5m within the range of the I-beam to support the end of the I-beam and prevent the end of the I-beam from sinking; at the same time, in order to avoid the large friction caused by dragging the I-beam outward and the difficulty of dragging, metal pulleys are arranged at the metal hanger and the reserved opening of the side wall to reduce friction and facilitate construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the I-beam of the utility model;

[0016] Figure 3 It is a half-section view of the I-beam of the utility model;

[0017] In the figure: 1. I-beam; 2. fixing spring; 3. metal hanger; 4. first metal pulley; 5. metal strip; 6. top plate; 7. side wall; 8. secondary keel; 9. formwork; 10. top plate structure casting; 11. second metal pulley. DETAILED DESCRIPTION

[0018] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model provides a technical solution: a device for supporting a top plate formwork for a tall and large enclosed space, comprising an I-beam 1, a metal hanger 3 is provided on the outer side of the I-beam 1, a pulley stabilizing groove is provided on the lower side of the metal hanger 3, a plurality of fixing springs 2 are fixedly connected to the upper side of the metal hanger 3, two side walls 7 are provided on the lower side of the I-beam 1, a second metal pulley 11 is connected to the upper side bearing of the side wall 7, the second metal pulley 11 is slidably connected to the pulley stabilizing groove, top plates 6 are provided on both sides of the upper side of the I-beam 1, a water stop strip is provided on one side of the top plate 6, a plurality of secondary keels 8 are also provided on the upper side of the I-beam 1, a template 9 is provided on the upper side of the secondary keel 8, the upper left and right sides of the template 9 are pressed by the top plate 6, and a top plate structure casting 10 is also provided on the upper side of the template 9.

[0020] The model of the I-beam 1 is not less than 28a, and it is fixed in the reserved opening of the wall. The reserved opening of the wall is between the side wall 7 and the top plate 6, and plays a supporting role in the formwork 9 system. When the construction is completed and dismantled, it can be dragged outward from the reserved opening on one side.

[0021] Two first metal pulleys are connected to the bearing at the inner lower side of the I-beam.

[0022] Metal bars 5 are provided on both sides of each first metal pulley 4 , and the metal bars 5 are fixedly connected to the I-beam 1 .

[0023] The first metal pulley 4 and the second metal pulley 11 are both circular metal sheets with a thickness of not less than 5 mm and a diameter of 20 mm.

[0024] Specifically, the metal strip 5 is used to stabilize the pulley. When the I-beam 1 is dragged outward, the first metal pulley 4 plays a sliding role, reducing friction and facilitating the outward dragging of the I-beam 1.

[0025] A thread is provided at the bottom of the fixed spring 2, and a hook is provided at the top of the fixed spring 2 for anchoring in the concrete structure of the top plate 6. A circular metal sleeve is provided on the outside of the fixed spring 2 to fix the fixed spring 2. The fixed spring 2 mainly plays a buffering role to prevent the metal hanger 3 from being damaged by unstable force during the outward dragging of the I-beam 1. At the same time, the stress is reduced by the expansion and contraction of the spring, thereby protecting the structure of the top plate 6.

[0026] The following steps are involved:

[0027] Step 1: Calculate the specifications, length and other related parameters of the I-beam 1 based on the structural span, top plate 6 thickness and other technical parameters.

[0028] Step 2: When constructing the wall of the closed space, a hole is reserved according to the size and position of the I-beam 1, and the second metal pulley 11 is installed.

[0029] Step 3: According to the specifications and size requirements of the I-beam 1, the I-beam 1 is manufactured, and a metal strip 5 is welded at the bottom of the I-beam 1 to form a pulley slot for stabilizing the metal pulley.

[0030] Step 4: Assemble the fixed spring 2 and the metal hanger 3, and connect the fixed spring 2 and the metal hanger 3 with bolts to form a whole.

[0031] Step 5: Installation of fixed springs 2 and metal hangers 3. First, fix the assembled fixed springs 2 and metal hangers 3 on the side walls 7. The quantity is calculated according to the structural span and the spacing is arranged at 1.5m.

[0032] Step 6: Insert the I-beam 1 through the reserved hole in the side wall 7, pass through the hole in the side wall 7 and the metal hanger 3, and finally rest on the reserved holes on both sides, with each side protruding from the side wall 7 by no less than 100 mm.

[0033] Step 7: Install the secondary purlin 8 and formwork 9, and tie the floor slab reinforcement according to the design requirements of the drawings.

[0034] Step 8: Install and fix the assembled fixed spring 2 and metal hanger 3 at a spacing of 1.5m, and fix the top of the metal spring to the top plate 6 steel bars that have been tied.

[0035] Step 9: After the top plate 6 concrete is poured and cured to reach the required strength, the formwork 9 and support are removed.

[0036] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them. Although the present utility model has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A device for supporting a roof formwork in a large enclosed space, comprising an I-beam (1), characterized in that: The outer side of the I-beam (1) is provided with a metal hanger (3), the lower side of the metal hanger (3) is provided with a pulley stabilizing groove, the upper side of the metal hanger (3) is fixedly connected with a plurality of fixing springs (2), the lower side of the I-beam (1) is provided with two side walls (7), the upper side bearings of the side walls (7) are connected with a second metal pulley (11), the second metal pulley (11) is slidably connected with the pulley stabilizing groove, the upper sides of the I-beam (1) are provided with top plates (6), one side of the top plate (6) is provided with a water stop strip, the upper side of the I-beam (1) is also provided with a plurality of secondary keels (8), the upper side of the secondary keel (8) is provided with a template (9), the upper left and right sides of the template (9) are pressed by the top plate (6), and the upper side of the template (9) is also provided with a top plate structure casting (10).

2. A device for supporting a roof formwork in a large enclosed space according to claim 1, characterized in that: The model of the I-beam (1) is not less than 28a.

3. A high and large enclosed space top plate formwork support device according to claim 2, characterized in that: Two first metal pulleys (4) are connected to the inner lower bearing of the I-beam (1).

4. A device for supporting a roof formwork in a large enclosed space according to claim 3, characterized in that: Metal bars (5) are provided on both sides of each of the first metal pulleys (4), and the metal bars (5) are fixedly connected to the I-beam (1).

5. A device for supporting a roof formwork in a large enclosed space according to claim 4, characterized in that: The first metal pulley (4) and the second metal pulley (11) are both circular metal sheets with a thickness of not less than 5 mm and a diameter of 20 mm.

6. A device for supporting a roof formwork in a large enclosed space according to claim 5, characterized in that: The bottom of the fixing spring (2) is provided with a thread, the top of the fixing spring (2) is provided with a hook, and the outer side of the fixing spring (2) is provided with a circular metal sleeve.

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