Adjustable building formwork mitre corner fixer

Abstract

The utility model relates to building construction technical field especially adjustable building template internal and external corner fixer, including with female corner frame and external corner frame, both ends of female corner frame are inserted with first slide bar, both ends of external corner frame are inserted with second slide bar, and the end of first slide bar and second slide bar all sets up with connecting rod, and the inside wall of external corner frame is connected with a plurality of compensation blocks, and the sidewall of compensation block all is provided with third slide, the utility model discloses compared with prior art adjustable building template internal and external corner fixer, through female corner frame, external corner frame, first slide bar, second slide bar and connecting rod cooperation, thereby improved the convenience of building template support limit, through third sliding groove and female corner frame cooperation improved the stability of compensation block installation, through the cooperation of plugboard and plugboard improved the convenience of compensation block distance adjustment, thereby improved the adaptability of compensation block filling compensation, thereby improved the stability of building template internal and external corner support limit.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to an adjustable corner fixer for building formwork. Background Technology

[0002] Adjustable corner fasteners for building formwork are important tools used in construction to ensure the accuracy and stability of the splicing of the corners of formwork. In construction, problems such as loose splicing, grout leakage, and deformation are prone to occur at the corners of formwork, affecting the quality and efficiency of construction. This type of fastener was developed to solve these problems.

[0003] The existing adjustable building formwork corner fixing device mainly consists of adjustable components, fastening devices and positioning parts. By flexibly adjusting the length and angle of the adjustable components, it can be adapted to different specifications of formwork to meet diverse construction needs. The adjustable building formwork corner fixing device can improve construction efficiency, reduce labor intensity, reduce formwork wear, and effectively prevent grout leakage and formwork bulging.

[0004] The adjustment distance of the existing adjustable corner fixing device for building formwork is usually a fixed size. Due to the thickness deviation of different building formwork, the stability of the corner fixing device in supporting and limiting different formwork may be affected. Utility Model Content

[0005] To overcome the problem that the adjustment distance of the existing adjustable corner fixing components of building formwork is usually a fixed size, and that the stability of the corner fixing for different formwork supports may be affected by the thickness deviation of different building formwork.

[0006] The technical solution of this utility model is as follows: an adjustable building formwork corner fixing device, including a corner bracket and an outside corner bracket. A first sliding rod is inserted into both ends of the corner bracket, and a second sliding rod is inserted into both ends of the outside corner bracket. A connecting rod is sleeved at the ends of both the first and second sliding rods. Several compensation blocks are engaged on the inner side wall of the outside corner bracket. A third sliding groove is opened on the side wall of each compensation block, and a first slot is opened at the top of each compensation block. Several insert plates are inserted into the middle of the first slot. Two first bolts are threaded onto the side wall of the outside corner bracket, and two second bolts are threaded onto the side wall of the corner bracket. A third bolt is threaded onto both ends of the second sliding rod.

[0007] Furthermore, the third sliding groove is connected to the first slot, and the internal dimensions of the third sliding groove are adapted to the external dimensions of the internal corner bracket and the external corner bracket in turn, which improves the stability of the compensation block installation.

[0008] Furthermore, the insert plates are all thin sheets, and the external dimensions of the insert plates are adapted to the internal dimensions of the first slot. The side walls of the insert plates are all provided with second slots, which improves the convenience of adjusting the thickness of the compensation block.

[0009] Furthermore, both ends of the corner bracket are provided with first sliding grooves, and the internal dimensions of the first sliding grooves are adapted to the external dimensions of the first sliding rod, thereby improving the stability of the horizontal movement of the first sliding rod.

[0010] Furthermore, a number of first threaded grooves are provided on the inner sidewall of the first slide groove, and a number of second threaded grooves are provided on the sidewall of the first slide rod. The first threaded grooves and the second threaded grooves are located on the same horizontal plane for the second bolt to be threadedly connected.

[0011] Furthermore, a second sliding groove is provided at both ends of the external corner bracket. The internal dimensions of the second sliding groove are adapted to the external dimensions of the second sliding rod, thereby improving the stability of the horizontal movement of the second sliding rod.

[0012] Furthermore, a number of fourth threaded grooves are provided on the inner sidewall of the second slide groove, and a number of fifth threaded grooves are provided on the sidewall of the second slide rod. The internal dimensions of the fourth and fifth threaded grooves are respectively adapted to the external dimensions of the first bolt.

[0013] Furthermore, two sets of insertion holes are provided on the side wall of the connecting rod. The internal dimensions of the insertion holes are adapted to the external dimensions of the first slide rod and the second slide rod in sequence. Both ends of the connecting rod are provided with a third threaded groove for the threaded connection of the third bolt. The third threaded groove is connected to the insertion hole in sequence, which improves the convenience of connecting rod installation and positioning.

[0014] The beneficial effects of this utility model are:

[0015] Compared to adjustable corner fixing devices for building formwork, this device improves the convenience of supporting and limiting the building formwork by using a combination of a corner bracket, an outside corner bracket, a first sliding rod, a second sliding rod, and a connecting rod. The third sliding groove, in conjunction with the corner bracket, enhances the stability of the compensation block installation. The combination of insert plates and insert plates further improves the convenience of adjusting the distance of the compensation block, thereby improving the adaptability of the compensation block filling and compensation, and ultimately enhancing the stability of the corner support and limiting of the building formwork. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the adjustable building formwork corner fixing device of this utility model. Figure 1 ;

[0017] Figure 2 The diagram shown is a schematic representation of the overall structure of this utility model. Figure 2 ;

[0018] Figure 3 The diagram shown is a schematic representation of the compensation block structure of this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the internal corner bracket structure of this utility model;

[0020] Figure 5 The diagram shown is a schematic representation of the external corner bracket structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Internal corner bracket; 2. External corner bracket; 3. First slide rod; 4. Second slide rod; 5. Connecting rod; 6. Compensating block; 7. First slide groove; 8. First bolt; 9. Second slide groove; 10. Second bolt; 11. Insertion hole; 12. Third bolt; 13. Insert plate; 14. Third slide groove; 15. First slot; 16. Second slot; 17. First threaded groove; 18. Second threaded groove; 19. Third threaded groove; 20. Fourth threaded groove; 21. Fifth threaded groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Among the currently discovered feasible technologies, the following are described:

[0024] In the field of building construction, formwork engineering is a key link in the formation of concrete structures. The construction quality of the internal and external corners directly affects the overall appearance and structural strength of the building. Adjustable building formwork internal and external corner fixers, as an innovative construction tool, effectively solve many problems existing in traditional construction through scientific structural design and functional optimization.

[0025] The adjustable component is the core of the fastener, typically made of high-strength metal materials such as alloy steel or high-quality carbon steel, possessing excellent strength and toughness. It consists of an inner rod and an outer rod, with the inner rod sliding and extending within the outer rod. The two are connected by threads or slots. By rotating the adjusting nut or inserting / removing the positioning pin, the extension and retraction length of the inner rod can be precisely controlled, thus achieving flexible adjustment of the overall length of the fastener. This design can adapt to building formwork of different sizes and thicknesses, meeting diverse engineering needs for construction projects ranging from small residential buildings to large commercial complexes.

[0026] The function of fastening devices is to provide strong and stable clamping force for the formwork, preventing displacement during concrete pouring. Common fastening devices include bolt and nut assemblies, wedge locking blocks, and hydraulic clamping mechanisms. Bolt and nut assemblies secure the formwork to the fixture by manually tightening the nuts; wedge locking blocks utilize the self-locking principle of a wedge structure to automatically lock the formwork after applying external force; and hydraulic clamping mechanisms generate strong thrust through a hydraulic system to achieve fast and efficient formwork fastening. Different fastening devices are suitable for different construction scenarios and formwork materials, and construction personnel can choose according to the actual situation.

[0027] The working principle of adjustable formwork corner fasteners is based on mechanical balance and precise positioning. Through the coordinated operation of various components, they effectively fix the corners of the formwork. Before installing the fasteners, construction personnel need to adjust the length of the adjustable components and the angle of the positioning components according to the formwork size and design angle. After the fasteners are installed at the corners of the formwork, the clamping device applies clamping force to the formwork, ensuring a tight fit between the formwork and the fasteners. During concrete pouring, the formwork is subjected to lateral pressure from the concrete. The fasteners, through their structural strength and clamping force, distribute and transfer this lateral pressure to the supporting structure, maintaining the stability of the formwork and preventing displacement, deformation, and grout leakage.

[0028] Please refer to Figures 1-5 An adjustable corner fixing device for building formwork includes a corner bracket 1 and a corner bracket 2, both made of aluminum alloy and shaped like right angles. The corner bracket 1 supports the inside corner of the building formwork and is fitted onto the outside corner of the formwork. Both ends of the corner bracket 1 are connected to a first sliding rod 3 to extend it. Both ends of the corner bracket 2 are connected to a second sliding rod 4 to extend it. Connecting rods 5 are fitted to the ends of the first and second sliding rods 3 and 4, forming a closed space to support and limit the building formwork. Several compensation blocks 6 are engaged on the inner wall of the corner bracket 2. Each compensation block 6 has a third sliding groove 14 on its side wall and a first locking groove 15 at its top. The third sliding groove 14 engages with the first locking groove 15. The grooves 15 are connected, and the internal dimensions of the third sliding groove 14 are adapted to the external dimensions of the internal corner bracket 1 and the external corner bracket 2, which improves the stability of the installation of the compensation block 6. Several insert plates 13 are inserted in the middle of the first slot 15. The insert plates 13 are all thin plates, and the external dimensions of the insert plates 13 are adapted to the internal dimensions of the first slot 15. The side walls of the insert plates 13 are all provided with second slots 16, which improves the convenience of adjusting the thickness of the compensation block 6. The side walls of the external corner bracket 2 are all threaded with two first bolts 8, and the side walls of the internal corner bracket 1 are all threaded with two second bolts 10. The two ends of the second sliding rod 4 are all threaded with third bolts 12. The compensation block 6 and the insert plates 13 cooperate to fill the gap between the internal corner bracket 1 and the external corner bracket 2 and the building template, thereby improving the stability of the internal corner bracket 1 and the external corner bracket 2 in the limiting position.

[0029] Please refer to Figure 1 , Figure 2 and Figure 4Both ends of the inner corner bracket 1 are provided with first sliding grooves 7. The internal dimensions of the first sliding grooves 7 are adapted to the external dimensions of the first sliding rod 3, which improves the stability of the horizontal movement of the first sliding rod 3. Several first threaded grooves 17 are provided on the inner side wall of the first sliding groove 7, and several second threaded grooves 18 are provided on the side wall of the first sliding rod 3. The first threaded grooves 17 and the second threaded grooves 18 are located on the same horizontal plane for the second bolt 10 to be threaded.

[0030] Please refer to Figure 1 , Figure 2 and Figure 5 The two ends of the external corner bracket 2 are provided with second sliding grooves 9. The internal dimensions of the second sliding grooves 9 are adapted to the external dimensions of the second sliding rod 4, which improves the stability of the horizontal movement of the second sliding rod 4. Several fourth threaded grooves 20 are provided on the inner side wall of the second sliding groove 9, and several fifth threaded grooves 21 are provided on the side wall of the second sliding rod 4. The internal dimensions of the fourth threaded grooves 20 and the fifth threaded grooves 21 are adapted to the external dimensions of the first bolt 8.

[0031] Please refer to Figure 4 and Figure 5 Two sets of insertion holes 11 are provided on the side wall of the connecting rod 5. The internal dimensions of the insertion holes 11 are adapted to the external dimensions of the first slide rod 3 and the second slide rod 4. Both ends of the connecting rod 5 are provided with third threaded grooves 19 for threaded connection of the third bolts 12. The third threaded grooves 19 are connected to the insertion holes 11 in sequence, which improves the convenience of installation and positioning of the connecting rod 5.

[0032] When using this adjustable corner fixing device for building formwork, the operator first places the device in the designated position, then clips the inside corner bracket 1 into the inside corner of the building formwork, and then places the outside corner bracket 2 onto the outside corner of the building formwork. The building formwork is existing technology and will not be described in detail here. The operator slides the first sliding rod 3 and the second sliding rod 4 sequentially according to the length of the building formwork wall to cover both ends of the building formwork. Then, the second bolt 10 is sequentially threaded into the inside of the first threaded groove 17 and the second threaded groove 18, and the first bolt 8 is sequentially threaded into the fourth threaded groove 20 and the fifth threaded groove 21. The first slide bar 3 and the second slide bar 4 are fixed inside the formwork, and then two connecting rods 5 are projected onto the two ends of the first slide bar 3 and the second slide bar 4 in sequence to form a closed maintenance structure for fixing the formwork. The same method is used to install the fixing device at equal intervals on the same building formwork. When there is a gap between the internal corner frame 1 and the external corner frame 2 and the building formwork, the operator will put the compensation block 6 on the side wall of the internal corner frame 1 near the formwork in sequence, and then insert several insert plates 13 in sequence into the middle of the first slot 15 to adjust the thickness of the support of the compensation block 6, thereby improving the adaptability and stability of the internal corner frame 1 and the external corner frame 2 in supporting the formwork.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable corner fixing device for building formwork, characterized in that, It includes a duct frame (1) and a duct frame (2): the two ends of the duct frame (1) are each connected to a first sliding rod (3), the two ends of the duct frame (2) are each connected to a second sliding rod (4), the ends of the first sliding rod (3) and the second sliding rod (4) are each fitted with a connecting rod (5), the inner side wall of the duct frame (2) is fitted with several compensation blocks (6), the side wall of each compensation block (6) is provided with a third sliding groove (14), the top of each compensation block (6) is provided with a first slot (15), the middle of the first slot (15) is fitted with several insert plates (13), the side wall of the duct frame (2) is threaded with two first bolts (8), the side wall of the duct frame (1) is threaded with two second bolts (10), and the two ends of the second sliding rod (4) are threaded with third bolts (12).

2. The adjustable building formwork corner fixing device according to claim 1, characterized in that: The third slide (14) is connected to the first slot (15), and the internal dimensions of the third slide (14) are adapted to the external dimensions of the inner corner bracket (1) and the outer corner bracket (2).

3. The adjustable building formwork corner fixing device according to claim 1, characterized in that: The insert plates (13) are all thin sheets. The external dimensions of the insert plates (13) are adapted to the internal dimensions of the first slot (15). The side walls of the insert plates (13) are all provided with second slots (16).

4. The adjustable building formwork corner fixing device according to claim 1, characterized in that: Both ends of the corner bracket (1) are provided with first sliding grooves (7), and the internal dimensions of the first sliding grooves (7) are adapted to the external dimensions of the first sliding rod (3).

5. The adjustable building formwork corner fixing device according to claim 4, characterized in that: The inner sidewall of the first slide groove (7) is provided with several first threaded grooves (17), and the sidewall of the first slide rod (3) is provided with several second threaded grooves (18). The first threaded grooves (17) and the second threaded grooves (18) are located on the same horizontal plane for the second bolt (10) to be threaded connected.

6. The adjustable building formwork corner fixing device according to claim 1, characterized in that: The two ends of the corner bracket (2) are provided with second sliding grooves (9), and the internal dimensions of the second sliding grooves (9) are adapted to the external dimensions of the second sliding rod (4).

7. The adjustable building formwork corner fixing device according to claim 6, characterized in that: The inner sidewall of the second slide groove (9) is provided with several fourth threaded grooves (20), and the sidewall of the second slide rod (4) is provided with several fifth threaded grooves (21). The internal dimensions of the fourth threaded grooves (20) and the fifth threaded grooves (21) are respectively adapted to the external dimensions of the first bolt (8).

8. The adjustable building formwork corner fixing device according to claim 3, characterized in that... Two sets of insertion holes (11) are provided on the side wall of the connecting rod (5). The internal dimensions of the insertion holes (11) are adapted to the external dimensions of the first slide rod (3) and the second slide rod (4). Both ends of the connecting rod (5) are provided with third threaded grooves (19) for threaded connection of the third bolt (12). The third threaded grooves (19) are connected to the insertion holes (11) in sequence.

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