Telescopic formwork erecting device for narrow closed space

Abstract

The utility model relates to a telescopic formwork erecting device for a narrow closed space. The device comprises a jack and a jack lead screw, the jack lead screw is arranged in the center of the jack, steel plates are arranged at stress points on two sides of the jack respectively, and formwork bodies are arranged on the outer sides of the steel plates. The utility model has the advantages of simple, reasonable, economical and applicable design, and effectively solves the problem of formwork support difficulty in narrow space and closed space (450-600mm). And the waste of formwork materials in a narrow space is reduced.

Description

Technical Field

[0001] The utility model relates to the field of construction, in particular to a telescopic formwork device for a narrow and closed space. Background Art

[0002] During the construction of the basement, there was a small enclosed space with an inner diameter of 450x750mm. The thickness of the outer wall in this area was 200mm and 300mm, and the wall height was 4.1m. When using the ordinary outer wall and formwork reinforcement system, it was impossible to reinforce it because the space was too small. Utility Model Content

[0003] In order to solve the problem in the background technology that the space is too small to be reinforced when using ordinary exterior wall and formwork reinforcement systems, the utility model provides a retractable formwork device for a narrow and enclosed space, which has good effect, large bearing capacity, small dosage, light weight, quick assembly, easy use, good economic benefits and high turnover efficiency.

[0004] The technical solution of the utility model is: the utility model is a telescopic formwork device for a narrow and enclosed space, and its special feature is that: the telescopic formwork device for a narrow and enclosed space comprises a jack and a jack screw, the jack screw is arranged at the center of the jack, steel plates are respectively arranged at the force points on both sides of the jack, and a formwork body is arranged on the outside of the steel plate.

[0005] Furthermore, the supporting formwork body includes a steel pipe and a steel plate buckle, the steel plate buckle is arranged on the outside of the steel plate, and the steel pipe is arranged inside the steel plate buckle.

[0006] Furthermore, there are two steel pipes, which are arranged side by side in the steel plate buckle.

[0007] Furthermore, a template is arranged on the outside of the steel pipe.

[0008] Furthermore, the steel plate and the buckle steel plate are welded together.

[0009] Furthermore, a steel bar is arranged on the top of the jack screw.

[0010] Furthermore, there are multiple steel bars, which are centrally symmetrically arranged on the top of the jack screw.

[0011] The utility model provides a retractable formwork device for a narrow and closed space. The jack is improved, and a 5cm long C18 steel bar head is welded at the top of the jack screw to facilitate the use of a steel pipe for twisting during reinforcement. A 70x120x16mm steel plate is welded at the stress point of the jack, and then a 16mm steel plate is used as a steel pipe buckle, and the steel plate at the stress point of the jack is welded firmly to the buckle steel plate. Then the inner wall formwork is assembled, and an integral hoisting is adopted. The formwork is numbered in sequence, and then the horizontal joints of the upper and lower formworks and the vertical joints of the left and right formworks are fixed with aluminum alloy strips and self-tapping screws. A concrete protective layer pad is set on the inner side of the formwork near the steel bar, and then the whole is hoisted to the inside of the narrow space. When constructing the retractable formwork for the inner wall, it is set alternately in the long direction and the short direction, and the upper and lower spacing is controlled at 450mm-600mm. After tightening from the bottom in sequence, the retractable formwork is reinforced upward. Therefore, the utility model has the following advantages:

[0012] 1) Good supporting construction effect: The frame of the utility model adopts a telescopic formwork device in design, and the entire support forms a structural geometric invariant system, which makes the support safer and more stable and greatly improves the load capacity.

[0013] 2) Large bearing capacity, small dosage and light weight.

[0014] 3) Quick assembly and easy use: Cost saving Due to the small amount and light weight, operators can assemble it more conveniently. While saving construction time, rental fees and labor costs are also saved accordingly.

[0015] 4) Good economic benefits and high turnover efficiency: when used in multiple projects, it has better economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure plane of the utility model;

[0017] Figure 2 It is a schematic diagram of the connection between the steel plate, the steel plate buckle and the steel pipe of the utility model;

[0018] Figure 3 for Figure 2 A cross-sectional schematic diagram of

[0019] Figure 4 It is a schematic diagram of the connection between the lead screw and the steel bar of the utility model.

[0020] The following are the descriptions of the reference numerals:

[0021] 1. Jack; 2. Jack screw; 3. Steel bars; 4. Steel plates; 5. Steel plate clips; 6. Steel pipes; 7. Templates. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] See also Figure 1 , 2 3. The structure of the specific embodiment of the utility model includes a jack 1, a screw 2, a steel bar 3, a steel plate 4, a steel plate buckle 5, a steel pipe 6 and a template 7;

[0024] The jack 1 is improved, the jack screw 2 is set at the center of the jack 1, and multiple 5cm long C18 steel bars 3 are welded at the top of the screw jack screw 2, and are symmetrically arranged at the top of the jack screw 2. The steel bars 3 are convenient for tightening with steel pipes, and 70x120x16mm steel plates 4 are welded at the stress points on both sides of the jack 1, and then 16mm steel plates are used to make steel pipe buckles 5, and the steel plates 4 at the stress points of the jack 1 are welded firmly with the steel plate buckles 5, and the steel pipes 6 are fixed with the steel plate buckles 5. There are two steel pipes 6, which are arranged in parallel in the steel plate buckles 5. Then the inner wall template is assembled, and a template 7 is set on the outside of the steel pipe 6.

[0025] The process of on-site construction and installation of the utility model is as follows:

[0026] 1. Jack 1: It is the main load-bearing component, and its quality meets the national standard requirements, with a bearing capacity of more than 2 tons. It is connected with the jack screw 2 to form a telescopic device.

[0027] 2. Jack screw 2: Select a screw with a diameter of more than 20mm and good force performance, and thread it at the jack connection. Connect it with jack 1 to form a telescopic device.

[0028] 3. Rebar 3: Weld 5cm long C18 rebar 3 at the position of screw 2. It is convenient to twist with steel pipe when reinforcing.

[0029] 4. Steel plate 4: 70x120x16mm steel plates 4 are welded at the stress points on both sides of the jack 1 to connect the steel plate clips 5 and the jack 1.

[0030] 5. Steel plate buckle 5: Use 16mm steel plate as steel pipe buckle, and weld the steel plate 4 at the force point of jack 1 to the steel plate buckle 5 firmly.

[0031] 6. Steel pipe 6: Use 0.72m long, 48.3x3.6mm steel pipe as the main beam of the formwork.

[0032] 7. Then assemble the inner wall formwork 7, use integral hoisting, number the formwork 7 in sequence, and then use aluminum alloy strips and self-tapping screws to fix the horizontal joints of the upper and lower formworks and the vertical joints of the left and right formworks, set concrete protective layer pads on the inner side of the formwork near the steel bars, and then hoist the whole formwork into the narrow space.

[0033] 8. When constructing the retractable formwork for the inner wall, set it alternately in the long and short directions, and control the upper and lower spacing at 450mm-600mm. Tighten it from the bottom in sequence and reinforce the retractable formwork upwards.

[0034] The utility model can be used in a limited space such as a narrow space or a closed space (length and width 450-600mm).

[0035] The technical contents not specifically described in the present utility model and the above embodiments are the same as the prior art.

[0036] The above are only specific implementation methods disclosed in the present utility model, but the protection scope of the present utility model is not limited thereto. The protection scope of the present utility model shall be based on the protection scope of the claims.

Claims

1. A retractable formwork device for a narrow and enclosed space, characterized in that: The telescopic formwork device for a narrow closed space comprises a jack and a jack screw, wherein the jack screw is arranged at the center of the jack, steel plates are respectively arranged at the force bearing points on both sides of the jack, and a formwork body is arranged outside the steel plates.

2. The retractable formwork device for a narrow and enclosed space according to claim 1, characterized in that: The supporting formwork body comprises a steel pipe and a steel plate buckle, wherein the steel plate buckle is arranged on the outside of the steel plate, and the steel pipe is arranged inside the steel plate buckle.

3. The retractable formwork device for a narrow and enclosed space according to claim 2, characterized in that: There are two steel pipes, which are arranged in parallel in the steel plate buckle.

4. The retractable formwork device for a narrow and enclosed space according to claim 3, characterized in that: A template is arranged on the outer side of the steel pipe.

5. The retractable formwork device for a narrow and enclosed space according to claim 4, characterized in that: The steel plate is welded with the buckle steel plate.

6. The retractable formwork device for a narrow and enclosed space according to any one of claims 1 to 5, characterized in that: A steel bar is arranged on the top of the jack screw.

7. The retractable formwork device for a narrow and enclosed space according to claim 6, characterized in that: There are multiple steel bars, which are centrally and symmetrically arranged on the top of the jack screw.

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