Adjustable concrete secondary structure formwork fixing device

Abstract

The utility model discloses an adjustable concrete secondary structure formwork fixing device. The ends of the secondary beams are directly welded to the side face of the main beam, inclined struts are welded between the main beam and the secondary beams on one side, connecting steel bar heads are welded to the secondary beams corresponding to the inclined struts, and supporting fastening plates are welded to the connecting steel bar heads. A screw rod is welded on the other group of secondary beams, a group of adjustable fastening plates are arranged on the screw rod, and one end of the screw rod penetrates through the adjustable fastening plates and then is fixed through a fastening bolt; sleeves are welded to one sides of the secondary beams, adjustable steel bar heads penetrate into the corresponding sleeves and can be freely adjusted within a certain range, adjustable fastening plates are welded to the two sides of each adjustable steel bar head respectively, and springs are arranged on the other sides of the adjustable fastening plates in a sleeving mode. The utility model solves the problems of complicated flow, low engineering efficiency, poor concrete forming quality, incompact joints, wall cracking or damage and the like in the construction process of the secondary structure at the present stage.

Description

TECHNICAL FIELD

[0001] The utility model relates to cast-in-place reinforced concrete secondary structure construction field, specifically is a kind of adjustable concrete secondary structure formwork fixing device. BACKGROUND

[0002] In the construction process of modern industry and civil building, the construction of cast-in-place concrete secondary structure (such as masonry guide wall, door pile, structural column, ring beam, lintel and coping beam) usually adopts the mode of later secondary construction. When the formwork of such secondary structure is erected, the traditional method is to use "step-by-step" and tensioning screw rod for reinforcement. However, the traditional secondary structure formwork reinforcement technology has limitations such as complicated process and low efficiency; in addition, the traditional method cannot guarantee the forming quality of the secondary structure concrete after pouring, thereby weakening the bearing capacity of the wall and affecting the verticality and flatness of the structure. SUMMARY

[0003] Therefore, in order to solve the above problems, the utility model provides an adjustable concrete secondary structure formwork fixing device; the present application introduces an adjustable secondary structure formwork fixing device in the construction process of secondary structure. The device solves the problems of complicated process, low engineering efficiency, poor concrete forming quality, non-dense joints, wall cracking or damage and other problems existing in the construction process of secondary structure at present. The device has the advantages of convenient installation and disassembly, efficient construction, high turnover utilization rate and the like, can effectively guarantee the construction quality of secondary structure, and realize cost reduction and efficiency improvement of the project.

[0004] The utility model is implemented as follows: a kind of adjustable concrete secondary structure formwork fixing device is constructed, and it is characterized by: including main beam, secondary beam, adjustable reinforcing bar head, support fastening plate, inclined brace, adjustable fastening plate, spring, fastening bolt, screw rod, sleeve, connecting reinforcing bar head;Secondary beam is two groups, and the end of secondary beam is directly welded with the side surface of main beam, inclined brace is welded between main beam and one side secondary beam, connecting reinforcing bar head is welded on the secondary beam corresponding to the welded inclined brace, and support fastening plate is welded on connecting reinforcing bar head;Screw rod is welded on the other group of secondary beam, a group of adjustable fastening plates are arranged on screw rod, and one end of screw rod is fixed by fastening bolt after passing through the adjustable fastening plate;The side of the group of secondary beam is welded with sleeve, adjustable reinforcing bar head is inserted into corresponding sleeve, and it can be freely adjusted within a certain range, and the two sides are respectively welded with adjustable fastening plate, and spring is sleeved on the other side of adjustable fastening plate.

[0005] Further, the length of the main beam is 700mm, and the length of the secondary beam is 220mm;The main beam and the secondary beam are both made of steel bars with a diameter of 20mm.

[0006] Further, the welding angle between the end of the secondary beam and the main beam is 90°.

[0007] Further, the diagonal brace forms an isosceles triangle structure with the main beam and the secondary beam; the sleeve is selected to have the same specification as the secondary beam, and the sleeve has a diameter of 20 mm and is welded to one side of the secondary beam.

[0008] Further, the adjustable range of the spring is 2-8 cm; the adjustable reinforcing bar head and the adjustable fastening plate can be freely adjusted within a certain range through the spring expansion, so as to adapt to different formwork size requirements.

[0009] Further, the support fastening plate and the adjustable fastening plate are made of on-site waste steel plates, and the size is 50 mm*170 mm*3 mm; the adjustable range of the adjustable fastening plate from the support fastening plate is 10-28 cm.

[0010] Further, the adjustable reinforcing bar head and the connecting reinforcing bar head are selected to have a diameter of 16 mm.

[0011] Further, the fastening bolt is selected to be an M16 galvanized nut.

[0012] The utility model has the advantages that: in the secondary structure construction process, the automatic adjustable secondary structure formwork reinforcing device is introduced. The problems of complicated process, low engineering efficiency, poor concrete forming quality, non-dense joints, wall cracking or damage and the like in the construction process of the secondary structure are solved. The device is suitable for working conditions including masonry guide walls, door piles, structural columns, ring beams, lintels and pressure top beams, and has the advantages of convenient installation and dismounting, efficient construction, high turnover utilization rate and the like, can effectively guarantee the construction quality of the secondary structure, and realizes cost reduction and efficiency improvement of the project. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figures 1-3 is the reinforcing device structure schematic view of the utility model;

[0014] Figure 4 is the along-wall direction reinforcing implementation schematic view of the reinforcing device of the utility model.

[0015] The main beam 1, the secondary beam 2, the adjustable reinforcing bar head 3, the support fastening plate 4, the diagonal brace 5, the adjustable fastening plate 6, the spring 7, the fastening bolt 8, the screw rod 9, the sleeve 10 and the connecting reinforcing bar head 11. DETAILED DESCRIPTION

[0016] The utility model will be described below in combination with the accompanying drawings. Figures 1-4 The utility model is described in detail, and the technical scheme in the utility model embodiment is clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0017] This utility model provides an adjustable concrete secondary structure formwork fixing device, such as... Figures 1-4 As shown, it can be implemented as follows: including a main beam 1, a secondary beam 2, an adjustable reinforcing bar head 3, a support fastening plate 4, a diagonal brace 5, an adjustable fastening plate 6, a spring 7, a fastening bolt 8, a threaded rod 9, a sleeve 10, and a connecting reinforcing bar head 11; the secondary beam 2 consists of two sets, and the ends of the secondary beam 2 are directly welded to the side of the main beam 1. A diagonal brace 5 is welded between the main beam 1 and one side of the secondary beam 2. A connecting reinforcing bar head 11 is welded to the secondary beam 2 corresponding to the welded diagonal brace 5, and a support fastening plate 4 is welded to the connecting reinforcing bar head 11; a threaded rod 9 is welded to the other set of secondary beam 2, and an adjustable fastening plate 6 is set on the threaded rod 9, and one end of the threaded rod 9 passes through the adjustable fastening plate 6 and is fixed by the fastening bolt 8; a sleeve 10 is welded to one side of this set of secondary beam 2, and the adjustable reinforcing bar head 3 passes into the corresponding sleeve 10, which can be freely adjusted within a certain range. Adjustable fastening plates 6 are welded to both sides of the sleeve, and a spring 7 is fitted on the other side of the adjustable fastening plate 6.

[0018] In this application, the main beam 1 has a length of 700 mm, and the secondary beam 2 has a length of 220 mm. Both the main beam 1 and the secondary beam 2 use steel bars with a diameter of 20 mm.

[0019] In this application, the welding angle between the end of the secondary beam 2 and the main beam 1 is 90°.

[0020] In this application, the diagonal brace 5 forms an isosceles triangle structure with the main beam and the secondary beam; the sleeve 10 is selected with the same diameter as the secondary beam, that is, the sleeve diameter is 20mm, and is welded to one side of the secondary beam.

[0021] In this application, the spring 7 is adjustable within a range of 2-8cm; the extension and retraction of the spring allows the rebar head and the adjustable fastening plate to be freely adjusted within a certain range to adapt to different template size requirements.

[0022] In this application, the support fastening plate 4 and the adjustable fastening plate 6 are made of scrap steel plates from the site, with dimensions of 50mm×170mm×3mm. The adjustable range of the adjustable fastening plate 6 from the support fastening plate 4 is 10-28cm.

[0023] In this application, the adjustable reinforcing bar head 3 and the connecting reinforcing bar head 11 are made of reinforcing bars with a diameter of 16mm.

[0024] In this application, the fastening bolt 8 uses an M16 galvanized nut.

[0025] The specific implementation of the present application is described in detail below; waste steel bars with a diameter of Φ16-20 are processed with adjustable bolts and corresponding sleeves. The connection between each rod is achieved by welding, the weld should be full welding, and the weld height should be not less than 6mm, so as to ensure the strength and stability of the connection part and meet the construction requirements.

[0026] According to the cross-sectional size of the secondary structure, the width and length of the reinforcing device are determined, wherein the length of the main beam is 700mm and the length of the secondary beam is 220mm. The main beam and the secondary beam are both made of steel bars with a diameter of 20mm; the end of the secondary beam is directly welded with the side of the main beam at an angle of 90°; an inclined brace is welded on the other side of the main beam and the secondary beam, forming an isosceles triangle structure with the main beam and the secondary beam; the sleeve is selected to be the same size as the diameter of the secondary beam, i.e. the diameter of the sleeve is 20mm, and it is welded on one side of the secondary beam; the adjustable steel head is inserted into the sleeve and can be freely adjusted within a certain range, and the two sides of the adjustable steel head are welded with adjustable fastening plates, and a spring is sleeved on the other side of the fastening plate, and the adjustable range of the spring is 2-8cm; the spring can be freely adjusted within a certain range to adapt to different formwork size requirements.

[0027] The reinforcing device is designed for secondary structure formworks with a cross-sectional size of 10cm to 28cm, and is suitable for working conditions including masonry guide walls, door piers, structural columns, ring beams, lintels and coping beams, etc., which embodies its wide applicability. Taking ring beam construction as an example, the use process and technical characteristics of the device are described in detail. During the ring beam construction stage, after the steel bar binding process is completed and the ring beam formwork is ready, the device is used to reinforce the ring beam formwork. The specific steps are as follows: 1. Positioning and marking: use a tape measure to mark every 600mm along the length of the ring beam with a marker pen as the positioning point for arranging the device along the length of the wall in the subsequent installation process; 2. Installation and adjustment: place the reinforcing device on the formwork, adjust the fastening nuts with an electric wrench to adjust the variable size of the reinforcing device, so that the inside of the adjustable fastening plate can tightly fit the formwork, and the distance between the adjustable fastening plate and the supporting fastening plate reaches the cross-sectional size requirement of the ring beam. 3. Concrete pouring: after completing the above reinforcement steps, pour the concrete of the ring beam according to the construction plan; 4. Demoulding and recycling: after the concrete curing reaches the specified strength standard and meets the demoulding conditions, loosen the fastening nuts with an electric wrench, at this time, due to the horizontal elastic force existing in the spring deformation process, the adjustable steel head will produce horizontal outward displacement inside the sleeve, thereby driving the adjustable fastening plate to automatically move outward along the horizontal direction, realizing auxiliary demoulding. This feature simplifies the demoulding process and facilitates the rapid recycling of the reinforcing device, realizing its recycling.

[0028] The present patent has the following advantages and beneficial effects:

[0029] 1. Broad applicability and reusability: It has broad applicability, not only can be applied to various scenes in the construction process, such as secondary structure construction of masonry guide wall, door pile, construction column, ring beam, lintel and lintel, but also can maintain high efficiency and reliability in repeated use.

[0030] 2. Significant optimization design and economic efficiency: Compared with traditional reinforcement construction, the construction efficiency and quality are significantly improved through its unique design and optimized construction process. The materials used in the device are all waste materials in the construction site, such as waste steel bars, old steel plates, springs, etc. Through the recycling of waste materials in the construction site, the labor cost and material waste are reduced, thereby reducing the construction cost and improving the economic benefit.

[0031] 3. Flexible adjustability and convenient installation and removal: Compared with traditional reinforcement methods, the technology has the characteristics of flexible adjustability and convenient installation and removal, so that the device can exhibit excellent performance in different types of construction projects, providing strong support for the technical innovation and sustainable development of the construction industry.

[0032] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adjustable concrete secondary formwork fixing device, characterised in that; The utility model relates to a kind of adjustable reinforcement head, it is including main beam (1), secondary beam (2), adjustable reinforcement head (3), support fastening plate (4), inclined brace (5), adjustable fastening plate (6), spring (7), fastening bolt (8), screw rod (9), sleeve (10), connecting reinforcement head (11);Secondary beam (2) is two groups, and the end of secondary beam (2) is directly welded with the side of main beam (1), inclined brace (5) is welded between main beam (1) and the secondary beam (2) of one side, connecting reinforcement head (11) is welded on the secondary beam (2) corresponding to welded inclined brace (5), connecting reinforcement head (11) welds support fastening plate (4);Another group of secondary beam (2) is welded with screw rod (9), and a group of adjustable fastening plate (6) is arranged on screw rod (9), and one end of screw rod (9) passes through the adjustable fastening plate (6) after being fixed by fastening bolt (8);One side of the group of secondary beam (2) is welded with sleeve (10), adjustable reinforcement head (3) is inserted into corresponding sleeve (10), can be freely adjusted within a certain range, and its two sides are welded with adjustable fastening plate (6) respectively, and spring (7) is sleeved on the other side of adjustable fastening plate (6).

2. An adjustable concrete secondary formwork tieback device according to claim 1, wherein: Wherein the length of main beam (1) is 700mm, the length of secondary beam (2) is 220mm;Main beam (1) and secondary beam (2) are all used steel bar with diameter of 20mm.

3. An adjustable concrete secondary formwork tie as claimed in claim 1, wherein: The welding angle between the end of secondary beam (2) and main beam (1) is 90 °.

4. An adjustable concrete secondary formwork tie as claimed in claim 1, wherein; Inclined brace (5) forms isosceles triangle structure with main beam (1) and secondary beam (2);Sleeve (10) is selected with the sleeve of the same specification as secondary beam (2), and the diameter of sleeve (10) is 20mm, welded on one side of secondary beam (2).

5. An adjustable concrete secondary formwork tieback device as claimed in claim 1, wherein; The adjustable range of spring (7) is 2-8cm;By the expansion and contraction of spring (7), adjustable reinforcement head and adjustable fastening plate can be freely adjusted within a certain range to adapt to different formwork size requirements.

6. An adjustable concrete secondary formwork tieback device according to claim 1, wherein: Support fastening plate (4) and adjustable fastening plate (6) are used on-site waste steel plate, and the size is 50mmx170mmx3mm, and the adjustable range of adjustable fastening plate (6) from support fastening plate (4) is 10-28cm.

7. An adjustable concrete secondary formwork tieback apparatus as claimed in claim 1, wherein; Adjustable reinforcement head (3) and connecting reinforcement head (11) are selected steel bar with diameter of 16mm.

8. An adjustable concrete secondary formwork tieback apparatus as claimed in claim 1, wherein; Fastening bolt (8) is used M16 galvanized nut.

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