A formwork mechanism based on concrete temperature compensation

By combining the outer and inner formwork components with heating belts and heat generators, temperature compensation for concrete is achieved, solving the problem that existing formwork cannot effectively control the hydration reaction rate, and improving the consistency of concrete quality and appearance.

CN117090382BActive Publication Date: 2026-01-30CHINA RAILWAY FIRST GROUP CO LTD +3
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Patent Information

Application Number
CN202311198775.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-18
Publication Date
2026-01-30
Estimated Expiration
2043-09-18

AI Technical Summary

Technical Problem

Existing concrete pouring formwork cannot effectively compensate for temperature, resulting in uneven hydration reaction rates, affecting concrete quality and appearance, and lacking real-time temperature measurement and control methods.

Method used

The system employs a combination structure of outer and inner formwork components, along with heating belt and heat generator components. It achieves uniform heating and temperature control of concrete through temperature sensors and temperature control components, and utilizes contact points to realize electrical connection and control of the formwork components.

Benefits of technology

It achieves uniform heating of concrete, improves the controllability of hydration reaction rate, ensures the stability of concrete quality and appearance, and simplifies the heating control process of multiple formwork components.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a formwork mechanism based on concrete temperature compensation, which combines an outer formwork assembly and an inner formwork assembly. A heating belt assembly and a heat generator assembly are installed on the outer formwork assembly. The heating belt assembly heats the inner formwork, achieving uniform heating of the concrete. The heat generator assembly is in close contact with the formwork fabric, rapidly raising the temperature of the concrete. Additionally, a temperature control assembly is provided to adjust the heating effect based on the concrete surface and ambient temperature, allowing for targeted adjustment of the heating temperature of the outer formwork assembly. Furthermore, when multiple formwork structures are spliced ​​together, they are connected via contact points, eliminating the need for individual heating sources and communication ports. A single temperature control assembly can control the heating of multiple formwork components, making it highly convenient.
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Description

Technical Field

[0001] This invention belongs to the field of building materials technology, specifically, it relates to a formwork mechanism based on concrete temperature compensation. Background Technology

[0002] The gradual hardening of large concrete structures after pouring is a result of cement hydration, which affects both the quality and aesthetics of the concrete structure. The rate of cement hydration and the overall quality of the concrete after hydration depend not only on its constituent materials and mix proportions but also on external temperature. Hydration accelerates and strength increases rapidly at higher temperatures, while below 5°C, hydration nearly ceases, and strength growth becomes very slow. Therefore, maintaining proper concrete temperature and implementing temperature compensation are crucial for ensuring the concrete meets required aesthetic standards.

[0003] Application number CN103216086A discloses a method for pouring concrete structures, a concrete pouring formwork, and its manufacturing method. The formwork utilizes a permeable template, allowing excess air and water in the concrete to drain out. In practical applications, a combination of an outer formwork and a formwork fabric is typically used for pouring. Temperature control and crack prevention are achieved by circulating cold water or air within the concrete or spraying cold water onto the surface. However, existing formwork fabrics and outer formwork have high thermal conductivity, making it impossible to achieve external insulation during concrete pouring. This prevents maintaining the concrete temperature and accelerating the hydration reaction when temperatures drop, and also makes it impossible to measure the temperature in real time to keep it within a suitable range. Therefore, existing technologies lack a good solution for temperature compensation of concrete through formwork. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] To address the problems of inconvenient use of the entire exhibition hall system in existing technologies, and the limitation of display resources to local storage and the inability to update in real time, the present invention adopts the following technical solution.

[0006] A formwork mechanism based on concrete temperature compensation, comprising:

[0007] An outer template assembly, comprising an outer template, wherein side plates are provided around the outer template, and the side plates are provided with connection holes for connecting with adjacent outer template assemblies;

[0008] An inner template assembly includes an inner template, which is connected to an outer template by connecting bolts. A heating groove is provided on the side of the inner template near the outer template, and hollow heating holes and detection holes are provided on the inner template.

[0009] Template fabric, wherein the template fabric is disposed on the side of the inner template away from the outer template;

[0010] The connecting contact points are provided in four sets, which are fixed on the four sides of the side plate respectively. They include metal contacts that protrude from the surface of the side plate and are used to electrically connect adjacent outer template components through the metal contacts.

[0011] A heating band assembly is fixed to the side of the outer template near the inner template and is inserted into the heating groove. It includes a heating wire and is electrically connected to a metal contact.

[0012] A heater assembly, which is fixed on the side of the outer template near the inner template, includes a button-shaped electronic heater that passes through a heating hole and rests against the side of the template fabric.

[0013] The temperature component includes a first temperature sensor and a second temperature sensor. The first temperature sensor is fixed on the side of the outer template near the inner template and passes through the detection hole against the side of the template cloth. The second temperature sensor is set on the side of the outer template away from the inner template. Both the first and second temperature sensors are electrically connected to metal contacts and are used to measure the surface temperature of the template cloth and the ambient temperature of the template mechanism, respectively.

[0014] A temperature control component, comprising a controller and a current regulator, wherein the controller is electrically connected to metal contacts for receiving temperature information measured by a first temperature sensor and a second temperature sensor, the controller is electrically connected to the current regulator for issuing a control signal, and the current regulator is electrically connected to metal contacts for providing operating current to the heating wire and the button-shaped electronic heater according to the control signal.

[0015] Furthermore, the outer template has crisscrossing reinforcing ribs on its side away from the inner template, and a sealing strip is fixed to the outer side of the side plate.

[0016] Furthermore, a rubber strip is fixed to the side of the inner template, and the rubber strip is located between the inner template and the template fabric.

[0017] Furthermore, the contact point also includes a hollow outer shell with an opening at the top. An insulating plate that can move up and down is fixed inside the outer shell. A metal contact is fixed on the insulating plate. A compression spring is fixed at the bottom of the insulating plate, and the other end of the compression spring abuts against the lower inner wall of the outer shell.

[0018] Furthermore, the temperature component also includes a communication bus and a power supply bus. The connection contacts on each side of the side plate are divided into two types: communication connection contacts and power supply connection contacts with identical structures. The communication connection contacts are electrically connected to the communication bus. The first temperature sensor and the second temperature sensor are connected in parallel on the communication bus. The heating wire and the button-shaped electronic heater are connected in parallel on the power supply bus. The controller is electrically connected to the communication connection contacts, and the current regulator is electrically connected to the power supply connection contacts.

[0019] Furthermore, the heating band assembly is distributed in a mesh pattern and also includes an insulating layer, which is fixed to the side wall of the outer template, and the heating wire is sleeved inside the insulating layer.

[0020] Furthermore, the heat generator assembly also includes an insulating rod, one end of which is fixed to the side of the outer template, and the other end is fixed to a button-shaped electronic heat generator. A sealing rubber ring is fitted over the insulating rod, and the diameter of the sealing rubber ring is the same as the diameter of the heating hole.

[0021] Furthermore, the template fabric is made of non-woven fabric.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] This invention employs a combination of outer and inner template components. A heating belt component and a heat generator component are mounted on the outer template component. The heating belt component heats the inner template, achieving uniform heating of the concrete. The heat generator component, in close contact with the template fabric, rapidly raises the temperature of the concrete. Additionally, a temperature control component is included to adjust the heating effect based on the concrete surface and ambient temperature, allowing for targeted adjustment of the heating temperature of the outer template component. Furthermore, when multiple template structures are spliced ​​together, they are connected via contact points, eliminating the need for individual heating sources and communication ports. A single temperature control component can control the heating of multiple template components, simplifying its use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall exploded structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the front structure of the outer template component in this invention;

[0026] Figure 3 This is a schematic diagram of the back structure of the outer template component in this invention;

[0027] Figure 4 This is a schematic diagram of the front structure of the inner template component in this invention;

[0028] Figure 5 This is a schematic diagram of the structure on the back of the inner template component in this invention;

[0029] Figure 6 This is a cross-sectional structural diagram of the heating belt assembly in this invention;

[0030] Figure 7 This is a schematic diagram of the structure of the heat generator assembly in this invention;

[0031] Figure 8 This is a schematic diagram of the structure of the contact points in this invention;

[0032] Figure 9 This is a schematic diagram of the system structure of the temperature control component in this invention.

[0033] The correspondence between the labels and component names in the attached figures is as follows:

[0034] 10 Outer template assembly, 11 Outer template, 12 Side plate, 13 Connecting hole, 14 Reinforcing rib, 15 Sealing strip, 20 Inner template assembly, 21 Inner template, 22 Heating groove, 23 Heating hole, 24 Detection hole, 25 Rubber strip, 30 Template cloth, 40 Connecting contact point, 41 Metal contact point, 42 Outer shell, 43 Insulating plate, 44 Compression spring, 50 Heating belt assembly, 51 Heating wire, 52 Insulation layer, 60 Heat generator assembly, 61 Button-shaped electronic heat generator, 62 Insulating rod, 63 Sealing rubber ring, 70 Temperature assembly, 71 First temperature sensor, 72 Second temperature sensor, 73 Communication bus, 74 Power supply bus, 80 Temperature control assembly, 81 Controller, 82 Current regulator, 90 Connecting bolt. Detailed Implementation

[0035] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments. The present invention provides the following embodiments.

[0038] like Figures 1-7 As shown, this is a structural schematic diagram of the formwork mechanism based on concrete temperature compensation in this embodiment. This embodiment provides a technical solution:

[0039] A formwork mechanism based on concrete temperature compensation includes an outer formwork assembly 10, an inner formwork assembly 20, a formwork fabric 30, a connecting contact point 40, a heating belt assembly 50, a heat generator assembly 60, a temperature assembly 70, and a temperature control assembly 80, wherein:

[0040] The outer template assembly 10 includes an outer template 11, and the outer template 11 is provided with side plates 12 around its perimeter. The side plates 12 are provided with connection holes 13 for connecting with adjacent outer template assemblies 10. When multiple template mechanisms are assembled into a whole, they are connected and fixed by screws passing through the connection holes 13 of adjacent outer template assemblies 10.

[0041] In this embodiment, the outer template 11 is provided with crisscrossing reinforcing ribs 14 on the side away from the inner template 21. The reinforcing ribs 14 ensure the strength of the outer template assembly 10. A sealing strip 15 is fixed on the outer side of the side plate 12. When multiple template mechanisms are assembled into a whole, the sealing strip 15 is stuck between adjacent outer templates 11 to ensure the sealing effect between adjacent outer templates 11 and prevent grout leakage.

[0042] The inner template assembly 20 includes an inner template 21, which is connected to the outer template 11 by connecting bolts 90. A heating groove 22 is provided on the side of the inner template 21 near the outer template 11. The inner template 21 is provided with hollow heating holes 23 and detection holes 24.

[0043] In this embodiment, a rubber strip 25 is fixed to the side of the inner template 21. The rubber strip 25 is located between the inner template 21 and the template cloth 30, so that a small gap is created between the template cloth 30 and the inner template 21. This allows the gas generated during the concrete hardening process to be effectively discharged through the gap between the template cloth 30 and the inner template 21, ensuring the quality of the hardened concrete.

[0044] The template cloth 30 is set on the side of the inner template 21 away from the outer template 11. The template cloth 30 is made of non-woven fabric and is in close contact with the surface of the concrete during pouring.

[0045] The connection contact points 40 are provided in four sets, which are fixed on the four sides of the side plate 12 respectively. They include metal contacts 41, which protrude from the surface of the side plate 12 and are used to electrically connect adjacent outer template assemblies 10 through the metal contacts 41. The connection contacts 40 provided on each side of the side plate 12 are divided into two types: communication connection contacts and power supply connection contacts with identical structures. The communication connection contacts and power supply connection contacts are isolated from each other.

[0046] When multiple template mechanisms are assembled into a whole, the connection contact points 40 on adjacent outer templates 11 come into contact with each other, thereby making an electrical connection. This allows the heating belt assembly 50 and the heat generator assembly 60 within the whole assembled from multiple template mechanisms to be connected in parallel through the power supply connection contact points, and all temperature components 70 to be connected in parallel through the communication connection contact points. It is not necessary to provide heating sources and communication ports for each one. The heating of multiple template components can be controlled by a single temperature control component, which is very convenient.

[0047] In this embodiment, the connecting contact point 40 further includes a hollow outer shell 42 with an open top. An insulating plate 43 that can move up and down is fixed inside the outer shell 42. A metal contact 41 is fixed on the insulating plate 43. A compression spring 44 is fixed at the bottom of the insulating plate 43. The other end of the compression spring 44 abuts against the lower inner wall of the outer shell 42. The compression spring 44 applies elastic force so that when multiple connecting contact points 40 come into contact, the metal contacts 41 can fit together well.

[0048] The heating band assembly 50 is fixed on the side of the outer template 11 near the inner template 21 and is inserted into the heating groove 22. It includes a heating wire 51, which is electrically connected to the metal contact 41. After the heating wire 51 is connected to the power supply, it can heat the heating groove 22, thereby heating the inner template 21. The inner template 21 insulates the concrete and achieves the effect of uniformly heating the concrete.

[0049] In this embodiment, the heating band assembly 50 is distributed in a mesh pattern and also includes an insulating layer 52. The insulating layer 52 is fixed on the side wall of the outer template 11, and the heating wire 51 is sleeved inside the insulating layer 52, which provides good protection for the heating wire 51.

[0050] The heat generator assembly 60 is fixed on the side of the outer template 11 near the inner template 21, and includes a button-shaped electronic heat generator 61. The button-shaped electronic heat generator 61 passes through the heating hole 23 and abuts against the side of the template cloth 30. When heating, the button-shaped electronic heat generator 61 directly abuts against the surface of the template cloth 30 to heat the concrete, thereby rapidly heating the concrete.

[0051] In this embodiment, the heat generator assembly 60 further includes an insulating rod 62. One end of the insulating rod 62 is fixed to the side of the outer template 11, and the other end is fixed to a button-shaped electronic heat generator 61. The insulating rod 62 supports the button-shaped electronic heat generator 61. A sealing rubber ring 63 is fitted around the outside of the insulating rod 62. The diameter of the sealing rubber ring 63 is the same as the diameter of the heating hole 23. When the button-shaped electronic heat generator 61 passes through the heating hole 23 and abuts against the side of the template cloth 30, the sealing rubber ring 63 is stuck in the heating hole 23, thus sealing the heating hole 23.

[0052] The temperature component 70 includes a first temperature sensor 71 and a second temperature sensor 72. The first temperature sensor 71 and the second temperature sensor 72 are DS18B20 temperature sensors. The first temperature sensor 71 is fixed on the side of the outer template 11 near the inner template 21 and passes through the detection hole 24 to abut against the side of the template cloth 30. The second temperature sensor 72 is located on the side of the outer template 11 away from the inner template 21. Both the first temperature sensor 71 and the second temperature sensor 72 are electrically connected to the metal contact 41 and are used to measure the surface temperature of the template cloth 30 and the ambient temperature of the template mechanism, respectively.

[0053] In this embodiment, the temperature component 70 further includes a communication bus 73 and a power supply bus 74. The communication bus 73 and the power supply bus 74 are connected by wires. The communication connection contact is electrically connected to the communication bus 73. The first temperature sensor 71 and the second temperature sensor 72 are connected in parallel on the communication bus 73. The heating wire 51 and the button-shaped electronic heater 61 are connected in parallel on the power supply bus 74. The controller 81 is electrically connected to the communication connection contact, and the current regulator 83 is electrically connected to the power supply connection contact.

[0054] The temperature control component 80 includes a controller 81 and a current regulator 81. The controller 81 is electrically connected to the metal contact 41 and is used to receive temperature information measured by the first temperature sensor 71 and the second temperature sensor 72. The controller 81 is electrically connected to the current regulator 82 and is used to issue control signals. The current regulator 83 is electrically connected to the metal contact 41 and is used to provide operating current to the heating wire 51 and the button-shaped electronic heater 61 according to the control signals. The controller 81 is based on a Siemens 200 SMART programmable controller.

[0055] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted herein.

Claims

1. A formwork mechanism based on concrete temperature compensation, characterized by, The utility model relates to a kind of temperature control system of template, including: Outer template assembly (10), the outer template assembly (10) includes outer template (11), outer template (11) is provided with side plate (12) around, side plate (12) is provided with connecting hole (13) for and adjacent outer template assembly (10) is connected; Inner template assembly (20), the inner template assembly (20) includes inner template (21), and inner template (21) is connected by connecting bolt (90) and outer template (11), and inner template (21) is provided with heating groove (22) on the side of outer template (11) close to, and inner template (21) is provided with hollow heating hole (23) and detection hole (24); Template cloth (30), the template cloth (30) is provided on the side of inner template (21) away from outer template (11); Connecting contact (40), the connecting contact (40) is provided with four groups, is respectively fixed on the four sides of side plate (12), including metal contact (41), and metal contact (41) protrudes side plate (12) surface, for adjacent outer template assembly (10) is electrically connected by metal contact (41); Heating belt assembly (50), the heating belt assembly (50) is fixed on the side of outer template (11) close to inner template (21), and is clamped in heating groove (22), including heating wire (51), and the heating wire (51) is electrically connected with metal contact (41); Heat generator assembly (60), the heat generator assembly (60) is fixed on the side of outer template (11) close to inner template (21), including button-shaped electronic heat generator (61), and the button-shaped electronic heat generator (61) passes through heating hole (23) and is placed on the side of template cloth (30); Temperature assembly (70), the temperature assembly (70) includes first temperature sensor (71) and second temperature sensor (72), and the first temperature sensor (71) is fixed on the side of outer template (11) close to inner template (21), and passes through detection hole (24) and is placed on the side of template cloth (30), and the second temperature sensor (72) is provided on the side of outer template (11) away from inner template (21), and the first temperature sensor (71) and the second temperature sensor (72) are electrically connected with metal contact (41), and are respectively used to measure the surface temperature of template cloth (30) and the ambient temperature where template mechanism is located; Temperature control assembly (80), the temperature control assembly (80) includes controller (81) and current regulator (82), and the controller (81) is electrically connected with metal contact (41), for receiving the temperature information measured by first temperature sensor (71) and second temperature sensor (72), and the controller (81) is electrically connected with current regulator (82), for sending control signal, and current regulator (82) is electrically connected with metal contact (41), for providing operating current to heating wire (51) and button-shaped electronic heat generator (61) according to control signal; The connecting contact (40) further comprises a hollow shell (42) with an open upper end, an insulating plate (43) fixed inside the shell (42) and movable up and down, a metal contact (41) fixed on the insulating plate (43), and a compression spring (44) fixed at the bottom of the insulating plate (43) and abutting against the inner side wall of the lower end of the shell (42); The temperature assembly (70) further comprises a communication bus (73) and a power supply bus (74), and the connecting contacts (40) arranged on each side of the side plate (12) are divided into two types, i.e. communication connecting contacts and power supply connecting contacts which are completely identical in structure, the communication connecting contacts are electrically connected with the communication bus (73), the first temperature sensor (71) and the second temperature sensor (72) are connected in parallel on the communication bus (73), the heating wire (51) and the button-shaped electronic heat generator (61) are connected in parallel on the power supply bus (74), the controller (81) is electrically connected with the communication connecting contacts, and the current regulator (82) is electrically connected with the power supply connecting contacts.

2. The formwork mechanism based on concrete temperature compensation according to claim 1, characterized in that, The outer mold plate (11) is provided with longitudinal and transverse intersecting reinforcing ribs (14) on the side away from the inner mold plate (21), and a sealing rubber strip (15) is fixed on the outer side of the side plate (12).

3. The formwork mechanism based on concrete temperature compensation according to claim 1, characterized in that, The inner mold plate (21) is fixed with a rubber strip (25) on the side, which is located between the inner mold plate (21) and the mold cloth (30).

4. The formwork mechanism based on concrete temperature compensation according to claim 1, characterized in that, The heating band assembly (50) is distributed in a mesh shape and further comprises an insulating layer (52) fixed on the side wall of the outer mold plate (11), and the heating wire (51) is sleeved inside the insulating layer (52).

5. The formwork mechanism based on concrete temperature compensation according to claim 1, characterized in that, The heat generator assembly (60) further comprises an insulating rod (62) fixed at one end on the side of the outer mold plate (11) and fixed at the other end with the button-shaped electronic heat generator (61), and the insulating rod (62) is sleeved with a sealing rubber ring (63) outside, and the diameter of the sealing rubber ring (63) is the same as that of the heating hole (23).

6. A concrete temperature-compensated formwork mechanism according to any one of claims 1 to 5, wherein, The mold cloth (30) is made of non-woven fabric.

Citation Information

Patent Citations

  • Method for pouring concrete structure, concrete pouring template and manufacturing method of concrete pouring template

    CN103216086A

  • Intelligence control by temperature change electric tracing heat preservation template

    CN205077854U

  • Concrete structure repair and intelligent maintenance device

    CN218712283U