Formwork fixing device for concrete pouring and mounting method

Abstract

The invention relates to the field of building construction, in particular to a formwork fixing device for concrete pouring and a mounting method.The formwork fixing device comprises at least two sets of positioning frames arranged at intervals in the vertical direction, each positioning frame comprises at least three sets of limiting strips connected in sequence, and the limiting strips define a closed-loop space corresponding to a formwork in shape so as to clamp and position the formwork; the adjacent limiting strips are detachably connected; an adjusting assembly is arranged on at least one set of limiting strips and used for independently applying pressing force to the formwork. The template clamping device can be suitable for clamping and fixing templates with different sizes, and is simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] The invention relates to the field of building construction, in particular to a template fixing device for concrete pouring and an installation method. Background Art

[0002] The formwork used for pouring concrete, also known as the building formwork, is a temporary supporting structure. It is made according to the design requirements to shape the concrete structure and components into the specified position and geometric dimensions, maintain its correct position, and bear the deadweight of the building formwork and the external loads acting on it. It can be divided into wooden formwork, steel formwork, aluminum formwork and plastic formwork according to the material.

[0003] Taking aluminum formwork as an example, the existing aluminum formwork for concrete pouring is described in the announcement number "CN221194233U", including a first frame and a second frame, a plurality of "J" beams are arranged between the first frames, plywood is placed on the "J" beams, a rectangular groove is formed on the right side of the first frame, and the first frame, the second frame and the "J" beams are connected to form an aluminum frame for concrete pouring. Since the aluminum formwork expands and deforms relatively greatly during the pouring process, a special clamp needs to be installed on its outer ring during construction to limit its deformation; due to the different pouring shapes, a clamp of corresponding size needs to be customized to clamp and position the formwork, and the cost of the clamp is high, and it is impossible to adapt the positioning of templates of different sizes through a set of clamps, so it is urgent to solve this problem. Summary of the invention

[0004] In order to avoid and overcome the technical problems existing in the prior art, the present invention provides a template fixing device and installation method for concrete pouring. The present invention can be adapted to clamp and fix templates of different sizes, has a simple structure and low manufacturing cost.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A formwork fixing device for concrete pouring comprises at least two groups of positioning frames arranged at intervals along a vertical direction, each positioning frame comprises at least three groups of limiting strips connected in sequence, each limiting strip encloses a closed-loop space corresponding to the shape of the formwork to clamp and position the formwork, and adjacent limiting strips form a detachable connection; at least one group of limiting strips is provided with an adjustment component for independently applying a clamping force to the formwork.

[0007] As a further solution of the present invention: the limit bars are provided with limit grooves along the length direction, the limit grooves of two adjacent limit bars face in opposite directions, and the two adjacent limit bars are positioned by corresponding limit groove mortise and tenon joints.

[0008] As a further solution of the present invention: each positioning frame is connected and fixed by screws, and each limit groove is vertically provided with a guide hole at a corresponding position. After the screw passes through the guide hole at the mortise and tenon joint of two adjacent limit strips, the positioning frame is locked and fixed by locking nuts located on the upper and lower sides of the positioning frame.

[0009] As a further solution of the present invention: the adjustment component includes an adjustment block that slidably cooperates with the limit bar. When the adjustment block slides, it moves closer to or away from the template. The adjustment block is pushed and positioned by the adjustment bolt.

[0010] As a further solution of the present invention: an adjustment cavity is opened in the limit strip along the length direction, the adjustment cavity is open on the side facing the template, and the adjustment block is arranged in the adjustment cavity and slides with the adjustment cavity; a positioning protrusion is provided at the opening of the adjustment cavity, and a positioning block is convexly provided on the adjustment block, and the positioning block abuts and positions with the positioning protrusion after the adjustment block slides to limit the adjustment block from leaving the adjustment cavity; an adjustment bolt is provided at the end of the limit strip away from the opening of the adjustment cavity along the sliding direction of the adjustment block, and the end of the adjusting bolt abuts and cooperates with the adjustment block.

[0011] A method for installing a formwork fixing device for concrete pouring comprises the following steps:

[0012] S1; Install the template according to design requirements;

[0013] S2. Install a positioning frame from the bottom of the template to enclose and fix the template. After the positioning frame is installed, adjust the components to press the template tightly.

[0014] S3. Install a screw on the positioning frame, and screw the locking nuts on the screw located on the upper and lower sides of the positioning frame to clamp and fix the positioning frame up and down;

[0015] S4, repeat steps S2 to S3, and set a multi-layer positioning frame on the outer circle of the template from bottom to top;

[0016] S5. After fixing each positioning frame, pour concrete in the formwork.

[0017] As a further solution of the present invention: in step S2:

[0018] S21, selecting two sets of limit strips arranged in parallel as main limit strips to pre-clamp and fix the template;

[0019] S22, selecting two sets of parallel limit bars as auxiliary limit bars, and mortise and tenoning them with the main limit bars;

[0020] S23. Tighten the adjusting bolt on the auxiliary limit strip and push the adjusting block until the adjusting block contacts the template, thereby clamping the template in place.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention pre-limits the template by connecting and enclosing multiple groups of limit strips in sequence to form a closed-loop space. After the limiting is completed, the template is pressed in two stages by adjusting the assembly to avoid shaking between the positioning frame and the template due to the gap between the limit strip and the template. It can be adapted to the clamping and fixing of templates of different sizes, has a simple structure and low manufacturing cost.

[0023] 2. In the present invention, two adjacent groups of limit strips are positioned by means of limit groove mortise and tenon joints. Since the limit grooves are arranged at intervals, after two groups of limit strips clamp the template, the other two groups of limit strips can achieve initial positioning of the template by selecting appropriate limit grooves, and then the adjusting bolts on the auxiliary limit strips are screwed to push the adjusting block until the adjusting block abuts against the template, thereby compensating for the gap between the limit strip and the template, achieving synchronous pressing of all surfaces of the template, and forming a stable support and positioning for the template.

[0024] 3. The present invention positions multiple groups of positioning frames by screws, and each group of positioning frames is locked and fixed by locking nuts on the upper and lower sides thereof, so as to accurately adjust the spacing between the positioning frames, improve the distance adjustment accuracy, and is convenient, fast and easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a schematic diagram of the structure of the regulating component in the present invention.

[0027] In the figure:

[0028] 1. Positioning frame;

[0029] 11. Limiting strip; 111. Limiting groove; 112. Guide hole;

[0030] 2. Screw; 21. Lock nut;

[0031] 3. Adjustment assembly; 31. Adjustment cavity; 311. Positioning protrusion;

[0032] 32. Adjusting block; 321. Positioning block; 33. Adjusting bolt. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1-2 In an embodiment of the present invention, a formwork fixing device for concrete pouring is provided. The formwork to be fixed in this embodiment is a formwork with a rectangular cross section. In this case, the formwork fixing device includes a plurality of positioning frames 1 arranged at different heights. Each positioning frame 1 includes four groups of limiting strips 11, two of which are transverse limiting strips arranged parallel to each other, and the other two groups of limiting strips 11 are longitudinal limiting strips arranged parallel to each other. The transverse limiting strips and the longitudinal limiting strips are arranged crosswise and staggered, thereby enclosing a rectangular annular space to clamp the positioning formwork.

[0035] According to the different shapes of the template, the number of the limiting strips 11 is adaptively adjusted, and the limiting strips 11 are connected in sequence to enclose annular closed spaces of different shapes. The limiting strips 11 can be fixed by bolts or mortise and tenon joints, and are designed to be detachable.

[0036] In this embodiment, the limiting strips 11 are provided with limiting grooves 111 at intervals along the length direction, and the limiting grooves 111 of the transverse limiting strips and the longitudinal limiting strips face in opposite directions. When the number of limiting strips 11 is an odd number, the grooves at the connection of adjacent limiting strips 11 face in opposite directions.

[0037] The limiting grooves 111 on each limiting strip 11 have corresponding shapes, and adjacent limiting strips 11 are joined by mortise and tenon joints in the limiting grooves 111 to achieve a positioning process.

[0038] The number of positioning frames 1 is adapted to the installation height of the template, and they are evenly spaced in the vertical direction. The positioning frames 1 are fixed by screws 2 , and the screws 2 are installed at the mortise and tenon positioning positions of each limiting strip 11 .

[0039] In this embodiment, four groups of screw rods 2 are provided, corresponding to the four corner ends of the positioning frame 1. A guide hole 112 is provided at the center of each limiting groove 111, and the screw rod 2 passes through the two guide holes 112 at the mortise and tenon joints of each positioning frame 1 in the vertical direction, and the positioning frame 1 is locked and fixed up and down through two groups of locking nuts 21 on the screw rod 2 to prevent the positioning frame 1 from shaking up and down.

[0040] Each positioning frame 1 is provided with an adjustment component 3 installed on at least one group of the limit strips 11 to compensate for the gap between the limit strips 11 and the template. An adjustment cavity 31 is provided in the middle section of the limit strip 11 on one side of the adjacent template. The adjustment cavity 31 is open-type in design, and positioning protrusions 311 are provided on both sides of the opening. An adjustment block 32 is slidably arranged in the adjustment cavity 31, and its sliding trajectory is perpendicular to the template surface, so that it moves closer to or away from the template after sliding. Positioning blocks 321 are provided on both sides of the positioning block 321, and the movement trajectory of the positioning block 321 intersects with the positioning protrusion 311. The positioning protrusion 311 is limited to prevent the adjustment block 32 from detaching from the adjustment cavity 31.

[0041] The limit strip 11 is provided with an adjustment bolt 33 at one end away from the opening of the adjustment cavity 31, and the adjustment bolt 33 is threadedly engaged with the limit strip 11 in a direction perpendicular to the template surface. When the adjustment bolt 33 is screwed, the adjustment bolt 33 pushes the adjustment block 32 to slide along the adjustment cavity 31 until the adjustment block 32 abuts against the template, so as to avoid shaking caused by the gap between the limit strip 11 and the template.

[0042] The installation method of the formwork fixing device for concrete pouring comprises the following steps:

[0043] S1; Install the template according to the design requirements; pre-position the template after the template is enclosed.

[0044] S2, install the positioning frame 1 from the bottom of the template to enclose and fix the template. After the positioning frame 1 is installed, the template is pressed tightly by adjusting the component 3;

[0045] S21. Select two sets of parallel limit bars 11 as main limit bars to pre-clamp and fix the template. This process requires that the two sets of main limit bars clamp the template to avoid gaps.

[0046] S22, select two groups of parallel limit strips 11 as auxiliary limit strips, and connect them with the main limit strips by mortise and tenon joints; because the limit grooves 111 are arranged at intervals, there will inevitably be a certain gap between the auxiliary limit strips and the template.

[0047] S23, screwing the adjusting bolt 33 on the auxiliary limit strip, pushing the adjusting block 32, until the adjusting block 32 abuts against the template, clamping and fixing the template;

[0048] S3, installing the screw 2 on the positioning frame 1, and screwing the locking nuts 21 on the screw 2 located on the upper and lower sides of the positioning frame 1 to clamp and fix the positioning frame 1 up and down;

[0049] S4, repeat steps S2 to S3, and set a multi-layer positioning frame 1 on the outer circle of the template from bottom to top;

[0050] S5. After the positioning frames 1 are fixed, concrete is poured in the formwork.

[0051] After pouring is completed, each positioning frame 1 is disassembled from top to bottom in sequence to complete the construction process.

[0052] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0053] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

Claims

1. A formwork fixing device for concrete pouring, characterized in that: The invention comprises at least two groups of positioning frames (1) arranged at intervals in a vertical direction, each positioning frame (1) comprising at least three groups of limiting strips (11) connected in sequence, each limiting strip (11) enclosing a closed loop space corresponding to the shape of a template to clamp the positioning template, and adjacent limiting strips (11) are detachably connected; at least one group of limiting strips (11) is provided with an adjustment component (3) for independently applying a pressing force to the template.

2. A concrete pouring formwork fixing device according to claim 1, characterized in that: The limiting strips (111) are provided with limiting grooves (111) along the length direction, the limiting grooves (111) of two adjacent limiting strips (11) face in opposite directions, and the two adjacent limiting strips (11) are positioned by mortise and tenon joints of the corresponding limiting grooves (111).

3. A concrete pouring formwork fixing device according to claim 1, characterized in that: The positioning frames (1) are connected and fixed by screw rods (2), and guide holes (112) are vertically opened at corresponding positions on the limiting grooves (111). After the screw rods (2) pass through the guide holes (112) at the mortise and tenon joints of two adjacent limiting strips (11), the positioning frames (1) are locked and fixed by locking nuts (21) located at the upper and lower sides of the positioning frames (1).

4. A concrete pouring formwork fixing device according to any one of claims 1 to 3, characterized in that: The adjustment assembly (3) comprises an adjustment block (32) which is slidably matched with the limit strip (11). When the adjustment block (32) slides, it moves closer to or farther from the template. The adjustment block (32) is pushed and positioned by the adjustment bolt (33).

5. A concrete pouring formwork fixing device according to claim 4, characterized in that: An adjusting cavity (31) is provided in the limiting strip (11) along the length direction, the adjusting cavity (31) is in an open shape on one side facing the template, and the adjusting block (32) is arranged in the adjusting cavity (31) and slides with the adjusting cavity (31); a positioning protrusion (311) is provided at the opening of the adjusting cavity (31), and a positioning block (321) is convexly provided on the adjusting block (32), and the positioning block (321) abuts against the positioning protrusion (311) after sliding with the adjusting block (32) to limit the adjusting block (32) from leaving the adjusting cavity (31); an adjusting bolt (33) is provided at one end of the limiting strip (11) away from the opening of the adjusting cavity (31) along the sliding direction of the adjusting block (32), and the end of the adjusting bolt (33) abuts against the adjusting block (32).

6. The method for installing a formwork fixing device for concrete pouring according to any one of claims 1 to 3, characterized in that: The steps include: S1; Install the template according to design requirements; S2, installing a positioning frame (1) from the bottom of the template to enclose and fix the template, and after the positioning frame (1) is installed, pressing the template tightly through the adjustment component (3); S3, installing the screw rod (2) on the positioning frame (1), and screwing the locking nuts (21) on the screw rod (2) located on the upper and lower sides of the positioning frame (1) to clamp and fix the positioning frame (1) up and down; S4, repeating steps S2 to S3, and setting a multi-layer positioning frame (1) on the outer circle of the template from bottom to top; S5. After the positioning frames (1) are fixed, concrete is poured in the formwork.

7. The method for installing a formwork fixing device for concrete pouring according to claim 6, characterized in that: In step S2: S21, selecting two sets of parallel limit strips (11) as main limit strips to pre-clamp and fix the template; S22, selecting two sets of parallel limit strips (11) as auxiliary limit strips, and mortise and tenoning them with the main limit strips; S23, screwing the adjusting bolt (33) on the auxiliary limit strip, pushing the adjusting block (32) until the adjusting block (32) abuts against the template, and clamping and fixing the template.

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