Prefabricated stair formwork fixing structure

Abstract

The utility model relates to a prefabricated stair formwork fixing structure, which belongs to the technical field of formwork prefabrication and comprises a steel frame, one side of the steel frame is movably connected with a connecting plate, the upper end of one side of the steel frame is provided with a first threaded groove, the inner wall of the first threaded groove is in threaded connection with a first bolt, and the outer wall of one side of the steel frame is provided with a second threaded groove. A second bolt is in threaded connection with the inner wall of the second threaded groove, C-shaped steel is in threaded connection with one side of the second bolt, a mounting groove is formed in the outer wall of one side of the steel frame, a transverse rod is movably connected with the inner wall of the mounting groove, a sliding groove is formed in the inner wall of the mounting groove, a third threaded groove is formed in the inner wall of the mounting groove, and a limiting groove is formed in the outer wall of one side of the steel frame. The inner wall of the mounting groove is movably connected with a movable block, and one side of the movable block is in threaded connection with a fourth bolt. The prefabricated stair formwork solves the problems that an existing prefabricated stair formwork is of a steel frame structure, angle deviation exists, connection is not firm, transportation and assembly are quite complex, and operation cost is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of template prefabrication, in particular to a prefabricated staircase template fixing structure. Background Art

[0002] Prefabricated stairs are building components that are pre-manufactured in factories or construction sites and then transported to the site for installation. At present, reinforced concrete staircases in construction projects are generally cast in place. The formwork support is complex and is greatly affected by external environmental factors. The quality of the concrete appearance is difficult to guarantee and requires a long time for maintenance. In addition, the staircase cannot be used as a transportation channel before the formwork is removed, which affects the construction period to a certain extent.

[0003] Factory-made prefabricated stair segments have high production efficiency and the component quality is easy to control, but the initial equipment, factory building and other investment and operating costs are high, and the number and scale of prefabricated component factories cannot meet the needs of existing projects.

[0004] Therefore, the current prefabricated stair formwork is usually supported by a steel frame structure, but this structure has problems such as angle deviation and loose connection, which will cause safety hazards to workers during work. Therefore, it is necessary to design a prefabricated stair formwork fixing structure that can ensure a stable connection, while being easy to transport and assemble, thereby saving operating costs. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the prior art that the existing prefabricated stair formwork is supported by a steel frame structure, which has the problems of angle deviation and loose connection, causing workers to face safety hazards during work, and the transportation and assembly are very complicated, increasing the operating costs. A prefabricated stair formwork fixing structure is provided.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a prefabricated stair formwork fixing structure, comprising: a steel frame, a connecting plate movably connected to one side of the steel frame, a thread groove 1 is opened at the upper end of one side of the steel frame, a bolt 1 is threadedly connected to the inner wall of the thread groove 1, a thread groove 2 is opened on the outer wall of one side of the steel frame, a bolt 2 is threadedly connected to the inner wall of the thread groove 2, a C-shaped steel is threadedly connected to one side of the bolt 2, an installation groove is opened on the outer wall of one side of the steel frame, a cross bar is movably connected to the inner wall of the installation groove, a sliding groove is opened on the inner wall of the installation groove, a thread groove 3 is opened on the inner wall of the installation groove, a limiting groove is opened on the outer wall of one side of the steel frame, a movable block is movably connected to the inner wall of the installation groove, and a bolt 4 is threadedly connected to one side of the movable block.

[0007] As a preferred embodiment, the movable block includes a clamping block, a threaded groove four is provided on the clamping block, a sliding rod is fixedly connected to the bottom end of the clamping block, and a limiting block is fixedly connected to one side of the bottom end of the clamping block.

[0008] As a preferred implementation, the C-shaped steel is threadedly connected to the steel frame via bolt 2.

[0009] As a preferred implementation, the movable block is threadedly connected to the outer wall of the steel frame via bolt 4.

[0010] As a preferred implementation, the sliding rod provided at the bottom end of the clamping block is slidably connected to a sliding groove provided on the inner wall of the installation groove.

[0011] As a preferred implementation, the limiting block provided at the bottom end of the clamping block is clamped with the limiting groove provided on the outer wall of the steel frame.

[0012] As a preferred implementation, the bolt four is threadedly connected to the thread groove three provided on the inner wall of the installation groove.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. The steel frame is placed on one side through design, and the connecting plate is spliced ​​with both ends of the steel frame. At this time, the steel frame is also installed on the other side of the connecting plate. At this time, a rough staircase shape can be obtained;

[0015] 2. A card block is provided on one side of the installation groove through design, and two sliding rods are fixedly connected to one side of the bottom end of the card block. The sliding rods can be connected to the sliding grooves opened on the inner wall of the installation groove, and the limit block connected to the other side of the bottom end of the card block can be connected to the limit grooves opened on the outer wall of the steel frame. Then, bolt four passes through the threaded groove four opened on the movable block and is threadedly connected to the threaded groove three opened on the inner wall of the installation groove. At this time, the movable block can completely limit the cross bar connected to the inner wall of the installation groove, and a stable stair template can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a structural schematic diagram of a prefabricated staircase template fixing structure.

[0017] Figure 2 The utility model provides a partial structural schematic diagram of a prefabricated staircase template fixing structure.

[0018] Figure 3 The utility model provides a schematic diagram of the structural disassembly of a prefabricated staircase template fixing structure.

[0019] Figure 4 The utility model provides a schematic diagram of the disassembled structure of a movable block section of a prefabricated stair formwork fixing structure.

[0020] Legend:

[0021] 1. Steel frame; 2. Connecting plate; 3. Thread groove one; 4. Bolt one; 5. Thread groove two; 6. Bolt two; 7. C-shaped steel; 8. Mounting groove; 9. Cross bar; 10. Slide groove; 11. Thread groove three; 12. Limiting groove; 13. Movable block; 14. Bolt four.

[0022] 131. a clamping block; 132. four threaded grooves; 133. a sliding rod; 134. a limiting block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0024] Example 1

[0025] like Figure 1-4 As shown, the utility model provides a technical solution: a prefabricated stair template fixing structure, comprising: a steel frame 1, a connecting plate 2 is movably connected to one side of the steel frame 1, a threaded groove 3 is opened at the upper end of one side of the steel frame 1, a bolt 4 is threadedly connected to the inner wall of the threaded groove 3, a threaded groove 2 is opened on the outer wall of one side of the steel frame 1, a bolt 2 is threadedly connected to the inner wall of the threaded groove 25, a C-shaped steel 7 is threadedly connected to one side of the bolt 26, and the C-shaped steel 7 is threadedly connected to the steel frame 1 through the bolt 26, an installation groove 8 is opened on the outer wall of one side of the steel frame 1, a cross bar 9 is movably connected to the inner wall of the installation groove 8, a sliding groove 10 is opened on the inner wall of the installation groove 8, a threaded groove three 11 is opened on the inner wall of the installation groove 8, a limiting groove 12 is opened on the outer wall of one side of the steel frame 1, a movable block 13 is movably connected to the inner wall of the installation groove 8, a bolt four 14 is threadedly connected to one side of the movable block 13, the movable block 13 is threadedly connected to the outer wall of the steel frame 1 through the bolt four 14, and the bolt four 14 is threadedly connected to the threaded groove three 11 opened on the inner wall of the installation groove 8.

[0026] In this example, the prefabricated staircase is a building component that is pre-manufactured in a factory or on a construction site and then transported to the site for installation. At present, reinforced concrete staircase segments in construction projects are generally cast in place, and the formwork support is complex and is greatly affected by external environmental factors. The quality of the concrete appearance is difficult to guarantee and requires a long time for maintenance. In addition, the concrete cannot be used as a transportation channel before the formwork is removed, which affects the construction period to a certain extent. Factory-produced prefabricated stair segments have high production efficiency and easy-to-control component quality, but the initial equipment, factory building and other investment and operating costs are high, and the number and scale of prefabricated component factories cannot meet the needs of existing projects.

[0027] A steel frame 1 is designed, a connecting plate 2 is connected to one side of the steel frame 1, and a steel frame 1 is similarly connected to the other side of the connecting plate 2. At this time, a template of a staircase is formed, but this template is not strong enough and needs to be reinforced. Therefore, a thread groove 5 is opened on one side of the steel frame 1, and a C-shaped steel is connected to one side of the thread groove 5. The C-shaped steel is connected by bolts 6. At this time, the bottom side is fixed, and the same operation is repeated at the top of the steel frame 1. A thread groove 3 is opened on the outer wall of the upper end of the steel frame 1, and a bolt 4 is threadedly connected to the inner wall of the thread groove 3, which can play a role in fixing the steel frame 1. In order to form a staircase style, a mounting groove 8 is opened on the outer wall of the steel frame 1, and a cross bar 9 is connected to the inner wall of the mounting groove 8, so that a step shape can be formed. However, in order to reinforce the cross bar 9, a movable block 13 is provided. The movable block 13 can be connected to the corresponding slide groove 10 and the limit groove 12 opened on the outer wall of the steel frame 1, and can be connected to the threaded groove three 11 opened in the mounting groove 8 by a bolt four 14, thereby completing the limitation of the position of the slide groove 10, thereby obtaining a stable staircase template.

[0028] Example 2

[0029] like Figure 2-4 As shown, the movable block 13 includes a clamping block 131, a threaded groove 132 is provided on the clamping block 131, a sliding rod 133 is fixedly connected to the bottom end of the clamping block 131, the sliding rod 133 provided at the bottom end of the clamping block 131 is slidably connected to the sliding groove 10 provided on the inner wall of the installation groove 8, and a limiting block 134 is fixedly connected to one side of the bottom end of the clamping block 131, and the limiting block 134 provided at the bottom end of the clamping block 131 is clamped with the limiting groove 12 provided on the outer wall of the steel frame 1.

[0030] In this example, a movable block 13 is designed, and the movable block 13 includes a clamping block 131. Two sliding rods 133 are fixedly connected to one side of the bottom end of the clamping block 131. The sliding rod 133 can be correspondingly connected to the sliding groove 10 opened on the inner wall of the installation groove 8, and the limiting block 134 connected to the other side of the bottom end of the clamping block 131 can be correspondingly connected to the limiting groove 12 opened on the outer wall of the steel frame 1. Under the interaction of the two, the clamping block 131 can be well connected to the steel frame 1 and limit the installation groove 8. At this time, the bolt four 14 passes through the threaded groove four 132 opened on the movable block 13 and is threadedly connected with the threaded groove three 11 opened on the inner wall of the installation groove 8. The movable block 13 can completely limit the cross bar 9 connected to the inner wall of the installation groove 8, and then a stable stair formwork is obtained.

[0031] Working principle:

[0032] like Figure 1-4As shown, when the utility model is in use, the steel frame 1 is placed on one side, the connecting plate 2 is spliced ​​with the two ends of the steel frame 1, and the steel frame 1 is installed on the other side of the connecting plate 2 in the same manner. At this time, a general staircase shape can be obtained. At this time, the cross bar 9 is correspondingly connected to the installation groove 8 opened on the outer wall of the steel frame 1. At this time, the shape of a staircase can be obtained. However, in order to reinforce this template, a clamping block 131 is provided on one side of the installation groove 8. Two sliding rods 133 are fixedly connected to one side of the bottom end of the clamping block 131. The sliding rod 133 3 can be connected to the slide groove 10 provided on the inner wall of the installation groove 8, and the limiting block 134 connected to the other side of the bottom end of the clamping block 131 can be connected to the limiting groove 12 provided on the outer wall of the steel frame 1, and then the bolt 4 14 passes through the thread groove 4 132 provided on the movable block 13 and is threadedly connected to the thread groove 3 11 provided on the inner wall of the installation groove 8. At this time, the movable block 13 can completely limit the cross bar 9 connected to the inner wall of the installation groove 8, and a stable stair template can be obtained, and then a prefabricated staircase can be obtained.

[0033] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A prefabricated staircase formwork fixing structure, characterized in that: include: A steel frame (1), wherein one side of the steel frame (1) is movably connected with a connecting plate (2), an upper end of one side of the steel frame (1) is provided with a thread groove (3), the inner wall of the thread groove (3) is threadedly connected with a bolt (4), an outer wall of one side of the steel frame (1) is provided with a thread groove (5), the inner wall of the thread groove (5) is threadedly connected with a bolt (6), one side of the bolt (6) is threadedly connected with a C-shaped steel (7), an outer wall of one side of the steel frame (1) is provided with a mounting groove (8), the inner wall of the mounting groove (8) is movably connected with a cross bar (9), the inner wall of the mounting groove (8) is provided with a sliding groove (10), the inner wall of the mounting groove (8) is provided with a thread groove (3) (11), an outer wall of one side of the steel frame (1) is provided with a limiting groove (12), the inner wall of the mounting groove (8) is movably connected with a movable block (13), and one side of the movable block (13) is threadedly connected with a bolt (4) (14).

2. A prefabricated staircase formwork fixing structure according to claim 1, characterized in that: The movable block (13) comprises a clamping block (131), a threaded groove (132) is provided on the clamping block (131), a sliding rod (133) is fixedly connected to the bottom end of the clamping block (131), and a limiting block (134) is fixedly connected to one side of the bottom end of the clamping block (131).

3. A prefabricated staircase formwork fixing structure according to claim 2, characterized in that: The C-shaped steel (7) is threadedly connected to the steel frame (1) via bolt 2 (6).

4. The prefabricated staircase formwork fixing structure according to claim 1 is characterized in that: The movable block (13) is threadedly connected to the outer wall of the steel frame (1) via bolts four (14).

5. The prefabricated staircase formwork fixing structure according to claim 2 is characterized in that: The sliding rod (133) provided at the bottom end of the clamping block (131) is slidably connected to a sliding groove (10) provided on the inner wall of the installation groove (8).

6. A prefabricated staircase formwork fixing structure according to claim 2, characterized in that: The limiting block (134) provided at the bottom end of the clamping block (131) is clamped with a limiting groove (12) provided on the outer wall of the steel frame (1).

7. A prefabricated staircase formwork fixing structure according to claim 2, characterized in that: The bolt four (14) is threadedly connected to the thread groove three (11) provided on the inner wall of the installation groove (8).

Images