External corner reinforcing structure
By installing the main keel, vertical secondary keel and corner fixing mechanism at the positive corner of the formwork, and using the pretension force of the slider and the rod, the problem of the unclosed connection of the positive corner of the formwork is solved, the mold expansion phenomenon is avoided, and the quality of concrete construction is improved.
Patent Information
- Application Number
- CN202420424573.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-05
AI Technical Summary
In the prior art, the positive angle connection of the formwork is not tight enough, and voids are prone to appear, causing the formwork to expand and affect the quality of concrete construction.
The male corner reinforcement structure is adopted, including the template, the main keel, the vertical secondary keel, the tension bolt and the corner fixing mechanism. The preload force is applied through the cooperation of the slider and the rod to ensure that the male corner of the template is tightly connected.
It effectively avoids the gaps and expansion of the mold at the positive corners of the formwork, improves the tightness of the formwork connection, and improves the quality of concrete construction.
Smart Images
Figure CN222558114U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete pouring formwork, in particular to a positive corner reinforcement structure. Background Art
[0002] Building formwork support is an important part of the main construction process of the building. The quality of building formwork support is closely related to the quality of concrete forming. During the concrete construction process, the formwork often expands, causing the size of the formwork components to change, resulting in an uneven formwork shape, affecting the construction quality of the concrete.
[0003] There are various reasons for the formwork bulging phenomenon. When pouring structures such as walls, square piers, and pedestals, if the connection at the outer corner of the formwork is not tight enough and there are gaps, the formwork bulging phenomenon is likely to occur. In the existing technology, tension bolts or corner frames are used in conjunction with pins to fix the outer corners of the formwork. For formwork and formwork supports that have been used multiple times, their quality is uneven. In structures built using deformed formwork and formwork supports, the outer corner connections of the formwork are even more difficult to fix tightly. Utility Model Content
[0004] In view of the deficiencies in the prior art, the present invention provides a positive corner reinforcement structure, which solves the problems in the prior art that the positive corners of the template are not connected tightly enough, have gaps, and are prone to mold expansion.
[0005] According to an embodiment of the present invention, a positive angle reinforcement structure includes a template, a main keel, a vertical secondary keel, and a tension bolt; the vertical secondary keels are evenly arranged on the outside of the template, and the main keel and the vertical secondary keel are arranged perpendicularly; the main keel is fixed to the template, and the main keel presses the vertical secondary keel; the main keels on both sides of the positive angle of the template intersect vertically, one end of the tension bolt is fixed to the keel on one side of the positive angle of the template, and the other end of the tension bolt is fixed to the other side of the positive angle of the template;
[0006] It also includes two bars and a corner fixing mechanism. The corner fixing mechanism is fixed on the main keel at the positive corner of the template, and the two bars are respectively arranged on one side of the positive corner of the template; the corner fixing mechanism includes a base, a slider and a retractable positioning part; the base is fixed on the main keel, and the slider is slidably connected to the base; the positioning part is arranged on one side of the base, the slider can press the bar, and the positioning part fixes the moving position of the slider.
[0007] The technical principle of the utility model is as follows: during the construction of the template, the bars are placed on both sides of the outer corner of the template, the main keel is built, the main keel presses the bars, and the bars are initially fixed; then the base is fixed on the main keel at the outer corner of the template, the slider is moved, and the slider is pressed against the bar; the positioning part is adjusted, the positioning part extends to fix the moving position of the slider, and the slider presses the bar.
[0008] Compared with the existing technology, the utility model has the following beneficial effects: without changing the existing formwork support structure, a corner fixing mechanism is installed on the main keel at the positive corner of the formwork, the slider presses the bar, and a certain pre-tightening force is applied to the positive corner of the formwork, so that the connection of the positive corner of the formwork is tightly fixed, avoiding the problem of gaps at the positive corner of the formwork and mold expansion; it solves the problem in the existing technology that the positive corner of the formwork is not tightly connected, there are gaps, and mold expansion is prone to occur.
[0009] Preferably, a corner mold is provided between the two bars, the corner mold is opposite to the positive corner of the template, and the intersection of the two main keels presses the corner mold.
[0010] The advantages of adopting the above technical solution are: the corner mold fills the corner gap between the outer side of the template's positive angle and the main keel, fixes the horizontal position of the bar on the template, and transmits the force on the bar.
[0011] Preferably, an extrusion slope is provided on the side of the slider head close to the template, and a support slope is provided on the radial side of the bar, and the extrusion slope can press the support slope.
[0012] The advantages of adopting the above technical solution are: the slider squeezes the bar, and the pressure on the supporting inclined surface can be decomposed into a first component perpendicular to the template and a second component parallel to the template; the first component is the pre-tightening force of the template, which presses the template's positive corner, and the second component is transmitted to the main keel through the angle mold.
[0013] Preferably, the corner fixing mechanism also includes a baffle; the base is U-shaped, and strip holes are opened on both sides of the base along the length direction of the main keel. The tail of the slider passes through the strip hole and is fixed to the baffle; the baffle can support the tail end of the base, and the slider can slide back and forth in the strip hole.
[0014] The advantages of adopting the above technical solution are: the baffle restricts the slider on the base, and the sliding distance of the slider on the base is adjustable; it is convenient to select a suitable base fixing point on the main keel and determine a suitable preload force.
[0015] Preferably, the positioning portion includes a screw and a base; the base is fixed to the outer side of the bottom of the base, the screw is threadedly connected to the base, and one end of the screw is against the slider.
[0016] The above technical solution has the advantage that after the slider abuts against the bar, the worker rotates the screw, and the screw gradually abuts against the slider to fix the position of the slider.
[0017] Preferably, the cross section of the slider head is U-shaped, the slider extrusion slope is provided at the end of the slider, a boss is provided on the side of the slider away from the extrusion slope, and the screw is against the boss.
[0018] The advantage of adopting the above technical solution is that the cross-sectional shape of the slider is adapted to the main keel.
[0019] Preferably, opposite through holes are provided on both sides of the base.
[0020] The above technical solution has the advantage that the base is fixed to the main keel through the through hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic structural diagram of the external corner reinforcement structure according to an embodiment of the present utility model;
[0022] Figure 2 This is a partial structural diagram of the external corner reinforcement structure of an embodiment of the utility model;
[0023] Figure 3 for Figure 1 Partial cross-sectional view of the middle AA plane;
[0024] Figure 4 for Figure 1 Partial cross-sectional view of the middle BB surface. DETAILED DESCRIPTION
[0025] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.
[0026] The figure marks in the drawings of the specification include: template 1, main purlin 2, vertical secondary purlin 3, bar 4, base 5, through hole 501, base 6, slider 7, strip opening 701, boss 702, extrusion slope 703, screw 8, baffle 9, and tightening bolt 10.
[0027] Example
[0028] like Figure 1-4As shown, the external angle reinforcement structure includes a template 1, a main keel 2, a vertical secondary keel 3 and a tension bolt 10; the main keel 2 is made of 60mm*60mm "C" type cold-rolled steel strip, with a wall thickness of 2.75mm, a weight of 4Kg / m, a section resistance moment W=20.80cm3, and a section inertia moment I=52.00cm4; the vertical secondary keel 3 is cut from Q235 material 40*40*3 square steel; the vertical secondary keels 3 are evenly arranged on the outside of the template 1, and the main keel 2 is arranged perpendicular to the vertical secondary keel 3; the main keel 2 is fixed to the template 1 with bolts, and the connecting bolts of the main keel 2 and the template 1 pass through the vertical secondary keel 3, and the main keel 2 presses the vertical Towards the secondary purlin 3; the main purlins 2 on both sides of the template's positive angle intersect vertically, one end of the tensioning bolt 10 is fixed to the purlin on one side of the template's positive angle, and the other end of the tensioning bolt 10 is fixed to the other side of the template's positive angle; it includes two bars 4 and a corner fixing mechanism, the corner fixing mechanism is fixed to the main purlin 2 at the template's positive angle, and the two bars 4 are each arranged on one side of the template's positive angle; a corner mold is arranged between the two bars 4, the corner mold is opposite to the template's positive angle, and the intersection of the two main purlins 2 presses the angle mold; a vertical secondary purlin 3 is selected as the corner mold; the corner mold fills the corner gap between the outer side of the template's positive angle and the main purlin 2, fixes the horizontal position of the bar 4 on the template 1, and transfers the force of the bar 4.
[0029] like Figure 2 and Figure 4 As shown: the corner fixing mechanism includes a base 5, a slider 7, a baffle 9 and a retractable positioning part; the base 5 is U-shaped, and opposite through holes 501 are opened on both sides of the base 5, and the base 5 is fixed to the main keel 2 through bolts through the through holes 501; strip holes are opened on both sides of the base 5 along the length direction of the main keel, and the tail of the slider 7 passes through the strip holes and is fixed to the baffle 9; the tail of the slider 7 is provided with a strip opening 701 along the length direction of the main keel 2, and the strip opening 701 is opposite to the through hole 501 on the base 5, leaving a fixing space for the connecting bolts between the base 5 and the main keel 2; the baffle 9 limits the slider 7 to the base 5, and the sliding distance of the slider 7 on the base 5 is adjustable; it is convenient to select a suitable base 5 fixing point on the main keel 2 and determine a suitable preload force; the slider 7 can slide back and forth in the strip hole, and the slider 7 slides forward to the extreme position of the base 5, and the baffle 9 is against the tail end of the base 5. This position is the maximum adjustable distance of the slider 7.
[0030] The cross-section of the head of the slider 7 is U-shaped, and an extrusion slope 703 is provided at the end of the slider 7. A boss 702 is provided on the side of the slider 7 away from the extrusion slope 703; a supporting slope is provided on the radial side of the bar 4, and the extrusion slope 703 can press the supporting slope, and the angle between the extrusion slope 703 and the supporting slope and the template 1 is 45°; the positioning part includes a screw 8 and a base 6; the base 6 is fixed to the outer side of the bottom of the base 5, and the screw 8 is threadedly connected to the base 6, and one end of the screw 8 is against the boss 702 of the slider 7, and the screw 8 fixes the moving position of the slider 7.
[0031] The technical principle of the present utility model is as follows: during the construction of the template 1, the bars 4 are placed on both sides of the template's outer corner, the main keel 2 is built, and the main keel 2 presses the bars 4 to preliminarily fix the bars 4; then the base 5 is fixed on the main keel 2 at the template's outer corner, the slider 7 is moved, and the slider 7 is pressed against the bars 4; then the worker rotates the screw 8, and the screw 8 gradually presses against the slider 7 to fix the position of the slider 7; the slider 7 presses the bars 4, and the pressure on the supporting inclined surface can be decomposed into a first component force perpendicular to the template 1 and a second component force parallel to the template 1; the first component force is the pre-tightening force of the template 1, and the pre-tightening force presses the template's outer corner, and the second component force is transmitted to the main keel 2 through the angle mold.
[0032] Compared with the existing technology, the present invention has the following beneficial effects: without changing the existing template 1 support structure, a corner fixing mechanism is installed on the main keel 2 at the template's positive corner, and the slider 7 presses the bar 4 to apply a certain pre-tightening force to the template's positive corner, so that the template's positive corner connection is tightly fixed, avoiding the problem of gaps at the template's positive corner and mold expansion; it solves the problem in the existing technology that the template's positive corner connection is not tight enough, there are gaps, and mold expansion is prone to occur.
[0033] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions and / or features of the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. The external angle reinforcement structure includes the formwork, main keel, vertical secondary keel and tension bolts; the vertical secondary keel is evenly arranged on the outside of the formwork, and the main keel and the vertical secondary keel are arranged vertically; the main keel is fixed to the formwork, and the main keel presses the vertical secondary keel; the main keels on both sides of the external angle of the formwork intersect vertically, one end of the tension bolt is fixed to the keel on one side of the external angle of the formwork, and the other end of the tension bolt is fixed to the other side of the external angle of the formwork; Features: It also includes two bars and a corner fixing mechanism. The corner fixing mechanism is fixed on the main keel at the positive corner of the template, and the two bars are respectively arranged on one side of the positive corner of the template; the corner fixing mechanism includes a base, a slider and a retractable positioning part; the base is fixed on the main keel, and the slider is slidably connected to the base; the positioning part is arranged on one side of the base, the slider can press the bar, and the positioning part fixes the moving position of the slider.
2. The external corner reinforcement structure according to claim 1, characterized in that: An angle mold is arranged between the two bars. The angle mold is opposite to the positive angle of the template, and the angle mold is pressed at the intersection of the two main keels.
3. The external corner reinforcement structure according to claim 2, characterized in that: An extrusion slope is arranged on one side of the slider head close to the template, and a support slope is arranged on one radial side of the bar, and the extrusion slope can press the support slope.
4. The external corner reinforcement structure according to claim 3, characterized in that: The corner fixing mechanism also includes a baffle; the base is U-shaped, and strip holes are opened on both sides of the base along the length direction of the main keel. The tail of the slider passes through the strip hole and is fixed to the baffle; the baffle can support the tail end of the base, and the slider can slide back and forth in the strip hole.
5. The external corner reinforcement structure according to claim 4, characterized in that: The positioning part comprises a screw and a base; the base is fixed to the outer side of the bottom of the base, the screw is threadedly connected to the base, and one end of the screw abuts against the sliding block.
6. The external corner reinforcement structure according to claim 5, characterized in that: The head section of the slider is U-shaped, the slider extrusion slope is arranged at the end of the slider, a boss is arranged on the side of the slider away from the extrusion slope, and the screw abuts against the boss.
7. The external corner reinforcement structure according to any one of claims 1 to 5, characterized in that: Opposite through holes are formed on two sides of the base.