Concrete mold

Abstract

The utility model discloses a concrete mould, which relates to the technical field of constructional engineering and comprises a mould body, a mould base, a switch type magnetic seat and a rubber mould plug, the mould body is arranged at the top of the mould base, a demoulding air hole is arranged at the bottom of the mould body, and the rubber mould plug is arranged in the demoulding air hole. The four corners of the bottom of the mold base are each provided with a switch type magnetic base. According to the concrete mold provided by the utility model, the switch type magnetic base is adopted, the mold can be conveniently and quickly fixed on the working table surface of the vibration table, and the demolding air hole is blocked by the rubber mold plug, so that the demolding air hole of the mold can be effectively prevented from being blocked by concrete, and the processing efficiency is favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and more specifically to a concrete mould. Background Art

[0002] Civil engineering material research occupies a core position in today's engineering field. Its in-depth exploration is crucial to improving engineering quality and performance. Especially in the study of concrete mechanical properties, casting standard specimens has become an indispensable step. During the experiment, the specimens need to be tested for various mechanical properties such as tension, compression, bending, shear, and torsion. With the continuous advancement of industry technology, the traditional method of casting standard concrete specimens is facing changes. The traditional casting scheme plastic concrete mold and vibrating table casting method has gradually failed to meet the needs of modern research in terms of efficiency, precision and environmental protection, and has many defects.

[0003] Traditional vibration table designs usually lack a stable fixing device for the mold. In actual operation, one experimenter is required to hold the concrete mold by hand to assist another experimenter in pouring the concrete model specimen. This pouring method that relies on human assistance not only significantly reduces the progress and efficiency of the experiment, but also increases the risk of the experimenter and his or her clothes being contaminated by concrete. At the same time, traditional plastic concrete molds are prone to adhesion with concrete during the pouring process, which increases the difficulty of demoulding and causes incomplete or damaged concrete specimens, which directly affects the performance of the specimens in the subsequent mechanical properties research, thereby weakening the reliability and accuracy of the experimental results. In addition, the demoulding pores at the bottom of the plastic concrete mold are often blocked by the solidification of concrete during pouring, making the demoulding process extremely inconvenient, and may even lead to unsuccessful demoulding, wasting time and resources. In addition, the plastic concrete mold is prone to adhesion and solidification with concrete, which brings great difficulties to the cleaning of the experimental equipment, increases the difficulty of equipment maintenance, and may also affect the subsequent use effect and overall life of the experimental instrument. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing concrete specimen casting method is inefficient, and during the casting process, the concrete is easily bonded to the mold and blocks the demoulding pores, resulting in great difficulty in demoulding and equipment cleaning. In order to overcome the defects of the prior art, the utility model proposes a concrete mold, which adopts a switch-type magnetic seat, can conveniently and quickly fix the mold on the vibrating table work surface, and uses a rubber mold plug to seal the demoulding pores, which can effectively prevent concrete from clogging the mold demoulding pores, and help improve processing efficiency.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a concrete mold, comprising a mold body, a mold base, a switch-type magnetic seat and a rubber mold plug. The mold body is arranged on the top of the mold base, demoulding air holes are arranged at the bottom of the mold body, rubber mold plugs are arranged in the demoulding air holes, and switch-type magnetic seats are arranged at the four corners of the bottom of the mold base.

[0007] In a preferred technical solution of the utility model, the switch-type magnetic seat includes a magnet, a fixing bolt and a control switch. The bottom end surface of the magnet is a magnetic surface, a connecting screw hole is provided on the top of the magnet, a fixing bolt is connected to the inner thread of the connecting screw hole, and the magnet is connected to the mold base through the fixing bolt, and a control switch is also provided on one side of the magnet.

[0008] In a preferred technical solution of the utility model, stiffening plates are evenly arranged on the outer side wall of the mold body.

[0009] In a preferred technical solution of the utility model, a connecting strip is further provided on the rubber mold plug, and the free end of the connecting strip is connected to the mold base.

[0010] In a preferred technical solution of the utility model, the mold body is made of stainless steel, and a nano titanium dioxide coating is sprayed on the surface of the mold body.

[0011] In a preferred technical solution of the utility model, the mold body is any one of a cubic mold, a prism mold or a cylindrical mold.

[0012] The beneficial effects of the utility model are:

[0013] 1. In the present invention, a rubber mold plug is added to the bottom to ensure that the rubber mold plug can fit the demoulding pores of the mold tightly and complete the tight sealing, so that the top surface of the rubber mold plug is flush with the bottom surface of the inner wall of the mold. Compared with other technical solutions to prevent the pores from being blocked by concrete, such as pasting labels on the bottom of the inner wall of the mold to block the demoulding pores before pouring in the traditional casting solution, the concrete mold of the present invention effectively utilizes the elasticity and density of rubber, has better operability, and compared with methods such as pasting labels, which are easy to cause the label position to shift or the label to break during concrete pouring, which will still cause the mold demoulding pores to be blocked by concrete, the concrete mold of the present invention can effectively prevent concrete from blocking the mold demoulding pores.

[0014] 2. In the utility model, a switch-type magnetic seat is adopted, which can conveniently and quickly install and fix the mold on the working surface of the vibration table or any other position that needs to be fixed during use, with excellent convenience and flexibility.

[0015] 3. In the utility model, a switch-type magnetic seat is used to firmly fix the mold body and the vibration table. Compared with the traditional method of fixing by hand during the pouring and vibrating of concrete components, it is easier to operate and more efficient during the pouring of components, and can effectively avoid the risk of experimental personnel and their clothes being contaminated by concrete.

[0016] 4. In the present invention, nano-titanium dioxide coating is sprayed on the surface of the mold body and the rubber mold plug. The nano-titanium dioxide coating has a lower surface energy and forms a larger hydrophobic angle, making it difficult for water and other liquids to form continuous droplets on the coating surface. This feature makes it difficult for concrete to be firmly adsorbed on the mold surface, thereby achieving an easier demoulding process and avoiding problems such as the mold cannot be demoulded after pouring and curing, the demoulding components are damaged, and the demoulding is incomplete. In addition, compared with traditional molds, concrete cannot be firmly adsorbed and solidified on the mold surface after spraying with nano-titanium dioxide coating, so that the mold can be quickly cleaned, improving experimental efficiency and extending the life of the mold.

[0017] 5. In the utility model, the nano-titanium dioxide coating spraying process is adopted on the surface of the mold body and the rubber mold plug, which can replace the scheme of brushing engine oil lubrication on the inner wall of the mold every time in the traditional model casting scheme, thereby avoiding the problems of too little engine oil brushing, which makes the concrete component unable to be demoulded, and too much engine oil brushing, which affects the mechanical properties and curing time of the concrete component. In addition, the nano-titanium dioxide coating can also maintain its performance of not sticking to the solidified concrete for a long time, thereby improving the efficiency of the experiment and being more environmentally friendly than brushing engine oil multiple times, effectively saving resources.

[0018] 6. In the utility model, the nano titanium dioxide coating spraying process is used on the surface of the mold body and the rubber mold plug to ensure that the inner wall of the mold remains clean after cleaning, and ensures that the mold can still cast a complete concrete experimental component that meets the requirements after repeated use.

[0019] 7. In the utility model, a nano-titanium dioxide coating spraying process is adopted on the surface of the mold body. When the concrete has not yet solidified, the nano-titanium dioxide coating has a large hydrophobic angle and is not easy to adhere to the concrete. Compared with the traditional casting method and mold material, when this scheme is adopted, the concrete is easier to slide along the inner wall of the mold tube without hanging on the wall and sticking, which can effectively improve the efficiency of vibration compaction, and at the same time ensure the density of the produced concrete components, and ensure the accuracy of the mechanical properties fed back by the subsequent experimental measurement of the concrete components.

[0020] 8. In the present invention, the mold body is made of stainless steel, which makes the mold have a longer service life.

[0021] 9. In the utility model, a stiffening plate is arranged on the outer wall of the mold body to ensure the strength and stability of the mold. Compared with the traditional mold, when subjected to the force of pouring concrete, it can effectively avoid deformation inside the mold tube, ensure that the size of the poured concrete components meets the requirements of the specifications, ensure the accuracy of the mechanical properties obtained in the experiment, and at the same time improve the life of the mold and prevent the mold from slight deformation during the experiment.

[0022] 11. In the present invention, the nano titanium dioxide coating spraying process can protect the metal surface from corrosion and penetration of cement, thereby increasing the life of the mold and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram when the mold body is a cubic mold;

[0024] Figure 2 It is a structural schematic diagram when the mold body is a prismatic mold;

[0025] Figure 3 It is a structural schematic diagram when the mold body is a cylindrical mold;

[0026] Figure 4 It is a structural diagram of a switch type magnetic seat.

[0027] In the figure:

[0028] 1. Mold body; 11. Demolding air hole; 2. Mold base; 3. Switch-type magnetic seat; 31. Magnet; 32. Connecting screw hole; 33. Fixing bolt; 34. Control switch; 4. Rubber mold plug; 5. Stiffening plate; 6. Connecting strip. DETAILED DESCRIPTION

[0029] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0030] like Figure 1-4As shown, a concrete mold is provided in the embodiment, including a mold body 1, a mold base 2, a switch-type magnetic seat 3 and a rubber mold plug 4. The mold body 1 is arranged on the top of the mold base 2, and a demoulding air hole 11 is arranged at the bottom of the mold body 1. The rubber mold plug 4 is arranged in the demoulding air hole 11, and the four corners of the bottom of the mold base 2 are all provided with a switch-type magnetic seat 3. In this embodiment, the mold body 1 is a cylindrical structure, and the concrete specimen is cast in the mold body 1. The size of the mold base 2 is 210mm×210mm, and the mold body 1 and the mold base 2 are connected as an integrated structure. The demoulding air hole 11 is located at the bottom center of the mold body 1, and the demoulding air hole 11 passes through the mold base 2 from top to bottom. The diameter of the demoulding air hole 11 is 10mm, which can be connected to the output end of the demoulding gun for demoulding of the concrete specimen. The rubber mold plug 4 is made of rubber material and sprayed with a nano titanium dioxide coating. The rubber mold plug 4 can block the demoulding pores 11, and during installation, the top surface of the rubber mold plug 4 should be flush with the bottom surface of the inner wall of the mold body 1 to ensure that the bottom end surface of the poured concrete specimen is flat. The switch-type magnetic seat 3 can be detachably installed on the mold base 2. When in use, the switch-type magnetic seat 3 can be firmly adsorbed on the work surface of the vibration table to achieve the connection between the mold base 2 and the vibration table. It adopts a magnetic adsorption fixation method, which is simple to operate and convenient to install and disassemble.

[0031] Specifically, the switch type magnetic seat 3 includes a magnet 31, a fixing bolt 33 and a control switch 34. The bottom end surface of the magnet 31 is a magnetic surface. A connecting screw hole 32 is provided on the top of the magnet 31. The fixing bolt 33 is connected to the inner thread of the connecting screw hole 32. The magnet 31 is connected to the mold base 2 through the fixing bolt 33. A control switch 34 is also provided on one side of the magnet 31. In this embodiment, the size of the switch type magnetic seat 3 is 35×30×36mm. The magnet 31 is a square structure. The control switch 34 provided can control the magnet 31 to work. When the control switch 34 is in the on state, the magnet 31 generates magnetic force, so that it can be adsorbed on the metal table of the vibration table; on the contrary, when the control switch 34 is in the off state, the magnet 31 has no magnetic force. A through hole matching the connecting screw hole 32 is provided on the mold base 2. The fixing bolt 33 passes through the through hole and is threadedly connected to the connecting screw hole 32, so that the switch type magnetic seat 3 can be installed and disassembled at will.

[0032] Specifically, stiffening plates 5 are evenly arranged on the outer wall of the mold body 1. In this embodiment, the stiffening plates 5 effectively ensure the strength and stability of the mold body 1, and can effectively prevent the internal deformation of the mold tube when subjected to the force of pouring concrete, compared with the traditional mold, to ensure that the size of the poured concrete component meets the specification requirements, to ensure the accuracy of the mechanical properties obtained in the experiment, and at the same time to improve the life of the mold and prevent the mold from being slightly deformed during the experiment.

[0033] Specifically, a connecting strip 6 is further provided on the rubber mold plug 4, and the free end of the connecting strip 6 is connected to the mold base 2. In this embodiment, the connecting strip 6 is made of rubber material, one end of the connecting strip 6 is fixed to the bottom of the mold base 2 with butyl glue, and the other end is fixed to the rubber mold plug 4 with butyl glue, forming a stable connection between the mold base 2 and the rubber mold plug 4.

[0034] Specifically, the mold body 1 is made of stainless steel, and the surface of the mold body 1 is sprayed with a nano-titanium dioxide coating. In this embodiment, the mold body 1 is made of stainless steel and has a longer service life. The nano-titanium dioxide coating has a lower surface energy and forms a larger hydrophobic angle, making it difficult for water and other liquids to form continuous droplets on the coating surface. This characteristic makes it difficult for concrete to be firmly adsorbed on the mold surface, thereby achieving an easier demoulding process. At the same time, when the concrete has not yet solidified, the nano-titanium dioxide coating has a larger hydrophobic angle and is not easy to adhere to the concrete. Compared with traditional casting methods and mold materials, when this solution is adopted, the concrete is easier to slide along the inner wall of the mold tube without wall adhesion, which can effectively improve the efficiency of vibration compaction, while also ensuring the density of the produced concrete components, and ensuring the accuracy of the mechanical properties fed back by the subsequent experimental measurement of the concrete components.

[0035] Specifically, the mold body 1 is any one of a cubic mold, a prism mold or a cylindrical mold. In this embodiment, the cubic mold is 166 mm high and 3 mm thick, and can be used to cast a standard concrete cubic specimen of 150×150×150 mm. The prism mold is 316 mm high and 3 mm thick, and can be used to cast a standard concrete prism specimen of 150×150×300 mm. The cylinder mold is 316 mm high and 3 mm thick, and can be used to cast a standard concrete cylinder specimen of φ150×300 mm.

[0036] Working principle:

[0037] Before casting the concrete specimen, the mold body 1, the mold base 2, the switch-type magnetic seat 3, and the rubber mold plug 4 are cleaned to make the inner wall of the mold body 1 smooth so as to cast standard concrete cubes, prisms, and cylinders that meet the requirements in size and appearance. Then align and tightly seal the demoulding pores 11 at the bottom of the mold body 1 with the rubber mold plug 4, and ensure that the top surface of the rubber mold plug 4 is flush with the bottom surface of the inner wall of the mold body 1. Finally, turn the control switch 34 of the switch-type magnetic seat 3 to "OFF" to be in the closed state, and then place the concrete mold as a whole in a suitable position on the work surface of the vibration table, ensure that the magnetic surface of the switch-type magnetic seat 3 is closely attached to the work surface of the vibration table, and then turn the control switch 34 of the switch-type magnetic seat 3 to "ON" to be in the open state. At this time, the switch-type magnetic seat 3 will firmly adsorb the mold to the metal work surface of the vibration table through the magnetic force of the magnet 31.

[0038] When pouring concrete specimens, turn on the vibration table switch to start the vibration table, and slowly introduce the prepared concrete into the mold body 1 to ensure that the concrete is vibrated and compacted in the mold tube. After the mold body 1 is filled with concrete, turn off the vibration table, fill the mold tube with an appropriate amount of concrete, and use a flat shovel to compact and smooth the concrete on the top of the mold body 1 tube and remove the excess concrete, so that the concrete in the tube is flush with the top surface of the mold, and then attach a layer of plastic wrap to the top surface of the mold body 1 tube to maintain the specimen.

[0039] After reaching the curing test piece process, turn the control switch 34 of the switch-type magnetic seat 3 to "OFF" and remove the concrete mold from the vibration table. Then pull out the rubber mold plug 4 from the demoulding air hole 11 at the bottom of the mold body 1 to expose the demoulding air hole 11. At this time, aim the demoulding air hole 11 with a demoulding gun and inflate and pressurize it, so that the concrete specimen can be completely taken out from the cylinder of the mold body 1 to obtain a standard concrete specimen.

[0040] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A concrete mold, characterized in that: The invention comprises a mold body (1), a mold base (2), a switchable magnetic seat (3) and a rubber mold plug (4); the mold body (1) is arranged on the top of the mold base (2); a demoulding air hole (11) is arranged on the bottom of the mold body (1); a rubber mold plug (4) is arranged in the demoulding air hole (11); and switchable magnetic seats (3) are arranged at the four corners of the bottom of the mold base (2).

2. A concrete mold according to claim 1, characterized in that: The switch-type magnetic seat (3) comprises a magnet (31), a fixing bolt (33) and a control switch (34); the bottom end surface of the magnet (31) is a magnetic surface; a connecting screw hole (32) is provided on the top of the magnet (31); the fixing bolt (33) is connected to the inner thread of the connecting screw hole (32); and the magnet (31) is connected to the mold base (2) through the fixing bolt (33); and a control switch (34) is also provided on one side of the magnet (31).

3. A concrete mold according to claim 1, characterized in that: Stiffening plates (5) are evenly arranged on the outer side wall of the mold body (1).

4. A concrete mold according to claim 1, characterized in that: The rubber mold plug (4) is also provided with a connecting strip (6), and the free end of the connecting strip (6) is connected to the mold base (2).

5. A concrete mold according to claim 1, characterized in that: The mold body (1) is made of stainless steel, and a nano titanium dioxide coating is sprayed on the surface of the mold body (1).

6. A concrete mold according to any one of claims 1 to 5, characterized in that: The mold body (1) is any one of a cubic mold, a prism mold or a cylindrical mold.

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