Novel plastic formwork structure
Through the rapid assembly and disassembly technology of modularly designed plastic formwork and positive corner form, combined with the reinforced structure of square column buckles, the problems of long assembly and disassembly time and complex operation of building column support systems are solved, and the high-quality effect of efficient formwork use and concrete forming is achieved, and forest resources are protected.
Patent Information
- Application Number
- CN202422161978.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The existing building column support system has a long assembly and disassembly time, complex operating procedures, fewer turnover and use of formwork, and wood formwork consumes a lot of wood, affecting forest resource protection.
The modularly designed plastic template and male corner mold are used to achieve rapid assembly and disassembly through the connection between U-shaped latch and L-shaped latch lock, and combined with the reinforced structure of square column buckles, the stability and service life of the template are improved.
The assembly and disassembly of the formwork is simplified, the construction time is shortened, the turnover and use of the formwork is increased, the wood consumption is reduced, forest resources are protected, and the high-quality effect of concrete forming is achieved.
Smart Images
Figure CN222949448U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a building column construction template structure, in particular to an improved technology of a building column construction template replacing a wood template supporting system. Background Art
[0002] my country is a country with scarce wood resources. Excessive consumption of wood will affect the protection of forest resources and the construction of the ecological environment. The construction field is a major consumer of wood in my country. Construction companies use ordinary wood formwork and wood squares as panels and support systems. In recent years, the country has issued relevant regulations on resource conservation and green building policies and promoted the development of wood-saving and wood-replacing work. Therefore, it is necessary to develop a construction support system that replaces forest materials.
[0003] The construction projects use ordinary wooden formwork and wooden squares as panels and support systems, which not only consumes a lot of wood, damages forest resources and the ecological environment, but also causes the following disadvantages: 1. The assembly and disassembly time of the support system is long, and the operation procedures are complicated; 2. The number of times the wood can be used is small; 3. The surface flatness and finish of the components after demoulding the concrete using wood as formwork are low; 4. The concrete forming effect is not good; 5. The wood raw materials can basically not be recycled and regenerated, and the energy conservation and emission reduction requirements cannot be met. The existing plastic formwork has the problems of long assembly and disassembly time, complicated operation procedures, and small number of template turnover due to unreasonable structure.
[0004] In view of this, this utility model is applied for. Utility Model Content
[0005] The utility model provides a novel plastic template structure to solve the problems of long assembly and disassembly time, complicated operation procedures and few template turnover times of the existing building column support system.
[0006] In order to solve the above problems, the utility model provides a novel plastic formwork structure, including a building column 6, a plastic formwork 1 and a positive angle formwork 2, the plastic formwork 1 is a rectangular plate body, a main keel 11 is provided on the back edge of the plastic formwork 1, and a formwork mounting hole 13 is provided on the main keel 11 on the edge of the plastic formwork 1; the positive angle formwork 2 is connected by two strip-shaped side panels 22 to form a strip-shaped body with a right-angled triangle cross section, and a positive angle mounting hole 21 is provided on the side panels 22; the back of the plastic formwork 1 is externally engaged with the outer side of the precast building column 6, the plastic formwork 1 is a unit module structure, the plastic formwork 1 is sequentially arranged along the height direction of the building column 6, the formwork mounting holes 13 on the main keel 11 on the edges of the upper and lower adjacent plastic formworks 1 are opposite, and U-shaped pins 4 are inserted into the opposite mounting holes 13 to connect and fix the two plastic formworks; the positive angle formwork 2 is arranged at the corner position between the sides of two adjacent plastic formworks 1 at the same height, and the length of the positive angle formwork 2 is the same as that of the plastic formwork 1. The side plate 22 of the external angle mold 2 cooperates with the side of the main keel 11 at the edge of the plastic template 1, and the template mounting holes 13 and the external angle mounting holes 21 on the matching surfaces of the plastic template 1 and the external angle mold 2 correspond to each other. L-shaped latch locks 3 are inserted into the corresponding template mounting holes 13 and the external angle mounting holes 21 to connect the plastic template 1 and the external angle mold 2 together.
[0007] Furthermore, the novel plastic formwork structure of the utility model has the following characteristics: there are longitudinal and transverse main keels 11 in the middle of the back side of the plastic formwork 1 .
[0008] Furthermore, a novel plastic formwork structure of the utility model has the following characteristics: grid-shaped secondary keels 12 are arranged between the main keels 11 on the back of the plastic formwork 1 .
[0009] Furthermore, a new type of plastic template structure of the utility model also has the following characteristics: there are right-angled triangular end plates 24 at both ends of the male angle mold 2, and there is a right-angled triangular reinforcement plate 23 in the middle section of the male angle mold 2. The right-angled sides of the end plates 24 and the reinforcement plates 23 are connected to the two side plates 22, and the plastic side plates 22, reinforcement plates 23 and end plates 24 are injection molded to form an integrated structure.
[0010] Furthermore, a novel plastic formwork structure of the utility model has the following characteristics: annular square column buckles 5 are sleeved on the outside of the plastic formwork 1 outside the building column 6 from bottom to top in a spaced manner along the height direction.
[0011] Furthermore, a new type of plastic formwork structure of the utility model also has the following characteristics: the square column buckle 5 is connected and enclosed by buckle strips 51, one end of the buckle strip 51 has a square sleeve 52, the outside of the square sleeve 52 is connected to a strip plate 53, the strip plates 53 of adjacent buckle strips 51 are inserted into the square sleeve 52, and the insertion position is fixed by screws or pins, thereby fixing the square column buckle 5 to the outside of the plastic formwork 1.
[0012] Technical effects of the utility model:
[0013] The plastic formwork and external angle formwork are modularly designed. The triangular external angle formwork structure is based on the principle of mechanics and is arranged neatly. It has better rigidity, strength and stability, and the construction quality is guaranteed.
[0014] The plastic formwork and the external angle formwork are connected by pins, which makes assembly easy, and assembly and disassembly saves time and energy.
[0015] The template installation and removal procedures are simple.
[0016] The formwork is suitable for use with a stable structure of a triangular formwork, which has better rigidity, strength and stability, ensuring construction quality.
[0017] The template components are not easy to deform and can be used more frequently. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;
[0019] Figure 2 yes Figure 1 BB cross-sectional view;
[0020] Figure 3 It is a structural schematic diagram of the second embodiment of the utility model;
[0021] Figure 4 It is the main view of the plastic formwork;
[0022] Figure 5 yes Figure 4 AA section view;
[0023] Figure 6 It is a three-dimensional diagram of the external angle mold;
[0024] Figure 7 It is a top view of the square column buckle;
[0025] Figure 8 It is a structural diagram of the buckle strip;
[0026] Fig. 9 It is a schematic diagram of the structure of an L-shaped latch lock;
[0027] Fig.10 It is a structural schematic diagram of a U-shaped latch.
[0028] Explanation of symbols in the figure: plastic formwork 1, main keel 11, grid-shaped secondary keel 12, formwork mounting hole 13, external angle formwork 2, external angle mounting hole 21, side panel 22, reinforcement plate 23, end plate 24, L-shaped latch lock 3, pin column 31, pin seat 32, U-shaped latch 4, U-shaped pin column 41, square column buckle 5, buckle strip 51, square sleeve 52, strip plate 53, building column 6. DETAILED DESCRIPTION
[0029] The present invention is described in detail with reference to the best embodiment below. Example
[0030] like Figure 1 , 2 As shown in Figures 4, 5, 6, 9 and 10, a novel plastic formwork structure includes a building column 6, a plastic formwork 1 and a positive angle formwork 2. The plastic formwork 1 is a rectangular plate body. The front surface of the plastic formwork 1 is smooth. The back edge of the plastic formwork 1 has a main keel 11. There are also vertical and horizontal main keels 11 in the middle of the back of the plastic formwork 1. There are grid-like secondary keels 12 between the main keels 11 on the back of the plastic formwork 1. The height of the grid-like secondary keel 12 is one third of the height of the main keel 11. The main keel 11 and the grid-like secondary keel 12 play a role in increasing strength. There are template installation holes 13 on the main keel 11 at the edge of the plastic formwork 1.
[0031] The external angle mold 2 is connected by two strip-shaped side panels 22 to form a strip-shaped body with a right-angled triangle cross-section. There are right-angled triangle end panels 24 at both ends of the external angle mold 2. There is a right-angled triangle reinforcement plate 23 in the middle section of the external angle mold 2. The right-angle sides of the end panels 24 and the reinforcement plates 23 are connected to the two side panels 22. The side panels 22, the reinforcement plates 23 and the end panels 24 are injection molded to form an integral structure. There are external angle mounting holes 21 on the side panels 22.
[0032] The back side of the plastic formwork 1 faces the outside and is fitted onto the outside of the precast building column 6. The plastic formwork 1 is a unit module structure. The plastic formwork 1 is arranged sequentially along the height direction of the building column 6. The formwork mounting holes 13 on the main keels 11 at the upper and lower edges of the upper and lower adjacent plastic formworks 1 are opposite to each other. U-shaped pins 4 are inserted into the opposite mounting holes 13 to connect and fix the two plastic formworks. The two U-shaped pin columns 41 of the U-shaped pins 4 are inserted from top to bottom into the two formwork mounting holes 13 of the plastic formworks 1 to connect and fix the two plastic formworks 1.
[0033] A male corner mold 2 is set at the corner position between the sides of two adjacent plastic templates 1 at the same height. The length of the male corner mold 2 is the same as that of the plastic template 1. The side plate 22 of the male corner mold 2 is matched with the side of the main keel 11 at the edge of the plastic template 1. The template mounting holes 13 and the male corner mounting holes 21 on the matching surfaces of the plastic template 1 and the male corner mold 2 correspond to each other. L-shaped latch locks 3 are inserted into the corresponding template mounting holes 13 and the male corner mounting holes 21 to connect the plastic template 1 and the male corner mold 2 together. When pouring, the receiving direction of the plastic template 1 is perpendicular to the template, and the axis of the L-shaped latch lock 3 is parallel to the template, so the concrete expansion force will not push the L-shaped latch lock 3 open during pouring. Example
[0034] like Figure 3 , 7As shown in Figure 8, an annular square column buckle 5 is installed on the outside of the plastic formwork 1 outside the building column 6 at intervals from bottom to top along the height direction. The square column buckle 5 is connected and enclosed by buckle strips 51. One end of the buckle strip 51 has a square sleeve 52. The outside of the square sleeve 52 is connected to a strip plate 53. The square sleeve 52 and the strip plate 53 are both made of plastic material and are an integral structure. The strip plate 53 of the adjacent buckle strip 51 is inserted into the square sleeve 52, and the insertion position is fixed by screws or pins, thereby fixing the square column buckle 5 to the outside of the plastic formwork 1 to prevent the expansion force of pouring from pushing the formwork open.
[0035] The plastic formwork uses a 5mm thick plastic plate as the panel, and the back is equipped with a 40X70mm main keel and a grid-shaped secondary keel that is integrated with the plastic plate. It replaces the reinforcement wood to save wood, has reasonable force and high strength. Square column buckles are used on site for secondary reinforcement based on the original plastic formwork, which is an additional reinforcement measure to avoid mold expansion.
[0036] During the formwork construction, the high-precision plastic formwork is installed in a modular manner, and the size, elevation, position, and verticality of the components are checked and finally fixed. The "high-precision plastic formwork construction method" is applied to achieve good concrete molding effect, and the surface flatness and smoothness of the components after demoulding exceed the technical requirements of the existing clear water formwork. Plastic materials can be 100% recycled and regenerated to achieve energy conservation and emission reduction.
[0037] The utility model is suitable for the formwork support of cast-in-place reinforced concrete column structural components in civil construction. Using plastic formwork instead of ordinary plain wooden formwork and wooden square has the following advantages:
[0038] 1. The high-precision plastic formwork is easy to assemble. The assembly and disassembly time of the plastic formwork saves about 40% compared with the traditional formwork, and the construction speed is fast.
[0039] 2. The plastic formwork has a very low water absorption rate, which can retain moisture in the concrete, reduce maintenance investment, reduce shrinkage cracks that are prone to appear in concrete, accelerate the growth of concrete strength, and ensure the quality of concrete molding.
[0040] 3. The demoulding is simple and the demoulding effect is good. The concrete does not stick to the board surface. No release agent is required. It is easy to demould, easy to clean, and smooth. The template is tightly spliced and flat. The surface flatness and smoothness of the components after demoulding exceed the technical requirements of the existing clear water template. No secondary plastering is required, saving labor and materials.
[0041] 4. The triangular structure in the middle of the high-precision plastic formwork is neatly arranged according to the principles of mechanics. It is heat-resistant, cold-resistant, and has a small expansion coefficient. Unlike the solid wood formwork that is prone to warping and deformation, it has better rigidity, strength and stability, and the construction quality is guaranteed.
[0042] 5. Plastic formwork has excellent material performance. Under standard use, it can be used about 10-15 times, thus greatly reducing the cost of single use. Plastic formwork provides excellent material performance, which is the guarantee of the turnover rate of plastic formwork. Even if the plastic formwork is scrapped after multiple turnovers, it can be 100% recycled and regenerated, realizing output value recovery, energy saving and emission reduction, and cost saving.
[0043] 6. The combustion performance level of plastic formwork materials is B1 flame-retardant materials. Compared with wooden formwork, it can effectively reduce the possibility of fire accidents on construction sites, reduce the amount of wood used, save energy and reduce emissions, and be green and environmentally friendly.
[0044] 7. The formwork does not need nails to be fixed, and there are fewer auxiliary materials. There are no problems such as residual nails and sharp spikes on the construction site, which greatly reduces the safety hazards of engineering personnel and ensures construction safety.
[0045] Operation points:
[0046] 1. Check and review the drawings, determine the specifications, models, dimensions and other technical parameters of the high-precision plastic formwork materials, ensure that they meet the requirements of the construction drawings, and construct according to the drawings. Determine the material production and processing plan and the material delivery plan.
[0047] 2. Factory processing and production and material delivery, statistics of the specifications and models of each concrete component, requiring the manufacturer to schedule the size and model of the required formwork. When the high-speed plastic formwork arrives at the site, the material specifications and dimensions, board thickness, back keel dimensions, product certificates, etc. are inspected and accepted, and only qualified ones can be used on site.
[0048] 3. After the column reinforcement is accepted, the next process can be carried out only after the on-site reinforcement project is inspected and accepted by the supervision unit before the formwork is installed.
[0049] 4. Technical explanation: Before construction, the management personnel will explain the construction technology of high-precision plastic formwork installation to the construction personnel, and explain the construction steps and installation points in detail to make the essentials clear. After the technical explanation is completed, the management personnel will track the construction process throughout.
[0050] 5. Use BIM technology to carry out in-depth design and simulate application of high-precision plastic formwork.
[0051] 6. Sample production: Before the template is installed, the sample should be produced first. During the sample production process, workers should be briefed on site and construction problems should be summarized. After the sample is completed, large-scale construction can be carried out only after acceptance by the supervision unit and the construction unit.
[0052] 7. Positioning and laying out: The surveying personnel will carry out positioning and laying out before the installation process, and pop out the axis line of the column and the surrounding lines. The quality management personnel will inspect and accept the column reinforcement. The mold can only be sealed after the acceptance procedures are completed. Before sealing the mold, the garbage in the mold must be cleaned up.
[0053] 8. Install the high-precision template. First, install the high-precision plastic templates on the four sides of the first layer of the column in place and assemble them in sequence. Use the positive angle mold to connect the four-sided templates and lock and fix the connection with the latch. Put the four sides of the template in place according to the given column section line and make it vertical with equal diagonals. Take the first floor slab as the reference, and assemble the second and third floors in the same way until the bottom of the beam. Use the latch to connect the vertical and horizontal joints. The above method is used to install the template of a certain flow section.
[0054] 9. Quality inspection: comprehensive correction of the template's axis position, vertical deviation, diagonal, torsion, etc.
[0055] 10. Final fixation: After passing the quality inspection, a square column buckle with a spacing of 500mm is used for final fixation, and finally the horizontal tie (support) rod and scissor support rod of the frame are fixed. The column reinforcement should have vertical and horizontal bidirectional steel pipes to prevent the column axis from offset.
[0056] 11. Concrete pouring: pour concrete for frame columns. Technical quality management personnel will provide guidance and inspection during pouring, and formwork installation personnel will supervise the whole process.
[0057] 12. Formwork removal: Formwork removal can be carried out only when the strength of column concrete can ensure that its surface and edges are not damaged. The removed high-precision plastic formwork, connectors, square column buckles and bracket rods must not be thrown away, but should be cleared away in time, piled up at designated locations and neatly stacked for the convenience of the next flow section construction.
[0058] Economic benefits: The high-precision plastic formwork construction method can save money, labor, and construction time to a certain extent, improve efficiency by 15%-30%, reduce resource waste, and thus reduce costs and increase profits. According to statistical comparisons, this method has achieved significant economic benefits in some engineering projects, including saving 10 days of construction time and 291,024 yuan of funds; saving 4 days of construction time and 25,455 yuan of funds; saving 8 days of construction time and 47,540 yuan of funds.
[0059] Social benefits: At present, plastic formwork is used to replace ordinary plain wooden formwork and wooden square as the panel and support system, which has achieved the purpose of reducing wood consumption, protecting forest resources and ecological environment, and forming a "high-precision plastic formwork construction method". The assembly and disassembly time is about 40% less than that of traditional formwork. The combination is simple, convenient and fast, and can be used about 10-15 times, which is much higher than ordinary wooden formwork. After the concrete is demoulded, the surface flatness and smoothness of the components exceed the technical requirements of the existing plain formwork. The concrete molding effect is good, and the plastic material can be 100% recycled, achieving the effect of energy saving and emission reduction.
Claims
1. A novel plastic formwork structure, comprising a building column (6), characterized in that: It also includes a plastic template (1) and a positive angle template (2), the plastic template (1) is a rectangular plate, the back edge of the plastic template (1) is provided with a main keel (11), and the main keel (11) at the edge of the plastic template (1) is provided with a template installation hole (13); The external angle mold (2) is formed by connecting two strip-shaped side plates (22) to form a strip-shaped body with a right-angled triangle cross section, and the side plates (22) are provided with external angle mounting holes (21); The back side of the plastic formwork (1) faces the outside and is fitted on the outside of the precast building column (6). The plastic formwork (1) is a unit module structure. The plastic formwork (1) is arranged in sequence along the height direction of the building column (6). The formwork mounting holes (13) on the main keels (11) at the edges of the upper and lower adjacent plastic formworks (1) are opposite to each other. U-shaped pins (4) are inserted into the opposite mounting holes (13) to connect and fix the two plastic formworks. A male corner mold (2) is arranged at a corner position between the side edges of two adjacent plastic templates (1) at the same height. The length of the male corner mold (2) is the same as that of the plastic template (1). The side plate (22) of the male corner mold (2) matches the side of the main keel (11) at the edge of the plastic template (1). The template mounting holes (13) and the male corner mounting holes (21) on the matching surfaces of the plastic template (1) and the male corner mold (2) correspond in position. An L-shaped latch lock (3) is inserted into the corresponding template mounting holes (13) and the male corner mounting holes (21) to connect the plastic template (1) and the male corner mold (2) together.
2. A novel plastic template structure as claimed in claim 1, characterized in that: There are also vertical and horizontal main keels (11) in the middle of the back side of the plastic template (1).
3. A novel plastic template structure as claimed in claim 2, characterized in that: There are grid-shaped secondary keels (12) between the main keels (11) on the back of the plastic template (1).
4. A novel plastic template structure as claimed in claim 1, characterized in that: The two ends of the external angle mold (2) are provided with right-angled triangular end plates (24), the middle section of the external angle mold (2) is provided with a right-angled triangular reinforcing plate (23), the right-angled sides of the end plates (24) and the reinforcing plate (23) are connected to the two side plates (22), and the plastic side plates (22), the reinforcing plate (23) and the end plates (24) are injection molded to form an integrated structure.
5. A novel plastic template structure as claimed in claim 1, characterized in that: Annular square column buckles (5) are sleeved on the outside of the plastic formwork (1) outside the building column (6) from bottom to top in a spaced manner along the height direction.
6. A novel plastic template structure as claimed in claim 5, characterized in that: The square column buckle (5) is formed by connecting and enclosing buckle strips (51), one end of the buckle strip (51) is provided with a square sleeve (52), the outside of the square sleeve (52) is connected to a strip plate (53), the strip plates (53) of adjacent buckle strips (51) are inserted into the square sleeve (52), and the insertion position is fixed by screws or pins, thereby fixing the square column buckle (5) to the outside of the plastic template (1).