Concrete curing equipment

By setting up an insulation chamber on the side wall of the box of the concrete curing equipment, and combining the temperature and humidity adjustment components and the air outlet components, the problem of uneven temperature transfer is solved, the uniformity of temperature and humidity inside the box is achieved, and the accuracy of the test data is improved.

CN119658824APending Publication Date: 2025-03-21ZHENGZHOU UNIV
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Patent Information

Application Number
CN202510048428.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

Due to uneven temperature transfer in existing concrete curing equipment, the performance of each surface of concrete specimens is inconsistent, affecting the accuracy of the test data.

Method used

A concrete curing equipment is designed to ensure the uniformity of the temperature and humidity inside the box by setting up a thermal insulation cavity on the side wall of the box, combining the temperature and humidity adjustment components and the air outlet components.

Benefits of technology

The temperature uniformity and humidity balance of the inside of the box are achieved, ensuring uniform temperature transfer on each surface of the concrete specimen, and improving the accuracy of the test data.

✦ Generated by Eureka AI based on patent content.

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Abstract

Concrete curing equipment comprises a box body, the box body is of a box body structure with an open front side face, each side wall of the box body is of a hollow structure, and the hollow structures form a heat preservation cavity; the temperature and humidity adjusting assembly is mounted in the heat preservation cavity; the placing assembly is mounted in the inner cavity of the box body; the air outlet assembly is mounted on one side of the placement assembly; according to the technical scheme, the heat preservation cavity is formed in the side wall of the box body, so that the temperature in the box body is kept consistent as much as possible, the constant-temperature effect is better, the contact area between the concrete test block and air can be increased as much as possible through the placement assembly, and temperature transfer of all the surfaces of the concrete test block is kept uniform; meanwhile, by matching with the air outlet assembly, water vapor can be conveyed into the box body from various angles to regulate and control the temperature and humidity in the box body, so that the temperature transfer on the surface of the concrete test block is more uniform.
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Description

Technical Field

[0001] The invention relates to a curing device, in particular to a concrete curing device. Background Art

[0002] Concrete curing is to artificially create certain humidity and temperature conditions so that the newly poured concrete can harden and increase its strength normally or accelerate its hardening. The reason why concrete can gradually harden and increase its strength is the result of cement hydration, and cement hydration requires certain temperature and humidity conditions. If the surrounding environment does not have such conditions, the concrete needs to be cured manually. Concrete curing equipment is a device used for constant temperature and humidity standard curing of concrete specimens. Its internal environment is carefully controlled to ensure that the concrete specimens are cured under the best conditions.

[0003] The production of different types of concrete often requires sampling and testing of different types of concrete. The test results of concrete specimens often represent the quality of this type of concrete products. Therefore, before mass production of concrete, it is necessary to conduct maintenance tests on concrete specimens of this type to obtain quality data of this type of concrete.

[0004] The concrete curing equipment used today directly blows water vapor into the curing equipment. Due to the placement of the concrete specimens, the temperature of each surface of the concrete specimens is not evenly transmitted, which makes the performance of each surface of the concrete specimens inconsistent, resulting in deviations in the test data of the concrete specimens, and thus affecting the test results.

[0005] In view of the above problems, we provide a concrete curing equipment. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a concrete curing device.

[0007] The object of the present invention is achieved in that:

[0008] A concrete curing device comprises a box body, wherein the box body is a box body structure with an open front side, and each side wall of the box body is a hollow structure, and the hollow structure constitutes a heat preservation cavity;

[0009] A temperature and humidity adjustment component is installed in the heat preservation chamber;

[0010] A placement component is installed in the inner cavity of the box;

[0011] The air outlet component is installed on one side of the placement component.

[0012] Furthermore, a box door is rotatably connected to the front side of the box body.

[0013] Furthermore, a sealing plate adapted to the inner cavity of the box is installed on the inner side of the box door.

[0014] Furthermore, the temperature and humidity adjustment component includes a baffle plate, a heat conducting plate, an upper plate, a one-way valve, a delivery pump, and a heating wire;

[0015] The insulation cavity in the rear side wall of the box body is provided with the baffle plates on the upper and lower sides, and the heat-conducting plates are respectively installed on the left and right sides, the front end of the heat-conducting plate extends to the front end of the insulation cavity, and the two baffle plates, the two heat-conducting plates and the side walls of the insulation cavity enclose a closed space, which is an operation cavity. The upper part of the operation cavity is provided with the upper plate, and the upper plate divides the operation cavity into two parts, the upper part of which is a gas cavity, and the lower part is a heating cavity. The heating wire is installed at the bottom of the heating cavity, and the interior of the heating cavity is filled with pure water. A plurality of air holes are opened in the middle of the upper plate, and the one-way valve is installed in the air hole, so that water vapor in the heating cavity can pass through the one-way valve into the gas cavity, and a delivery pump is installed on the side wall of the gas cavity, and the input end of the delivery pump and the gas cavity are connected as well as the output end of the delivery pump and the inner cavity of the box body through pipelines.

[0016] Furthermore, the heating wire comprises a heating ring and a bracket, a pair of the brackets are arranged in the middle of the bottom surface of the heating chamber, and a plurality of the heating rings are installed between two of the brackets.

[0017] Furthermore, an extension tube is installed at the output end of the delivery pump, the other end of the extension tube is connected to the inner cavity of the box body, and a micro sensor is installed inside the extension tube.

[0018] Furthermore, the placement component includes a first-layer component and a second-layer component, and the second-layer component is installed below the first-layer component.

[0019] Furthermore, the first layer component includes a placement plate and placement pieces, a pair of support bars are provided on the side wall of the inner cavity of the box body, the placement plate is placed on the top of the support bars, and a plurality of the placement pieces are plugged into the top of the placement plate.

[0020] Furthermore, the placement board is composed of a plurality of slats, which are divided into two layers. The slats of the two layers are evenly spaced, the slats of the upper layer and the slats of the lower layer are perpendicular to each other, the placement board has a mesh structure, and the placement piece is inserted at the intersection of the two layers of slats.

[0021] Furthermore, the placement piece includes a base plate, a plug-in rod, a telescopic top rod, and a top support. The plug-in rod is arranged at the corners of the bottom surface of the base plate, the telescopic top rod is installed at the center of the top surface of the base plate, and the top support is arranged at the output end of the telescopic top rod.

[0022] Furthermore, the second-layer component has the same structure as the first-layer component, and a second-layer lifting push rod is installed between the second-layer component and the first-layer component.

[0023] Furthermore, the air outlet assembly includes a rear air outlet assembly and left and right air outlet assemblies. The rear air outlet assembly is installed on the rear side of the placement assembly, and the left and right air outlet assemblies are installed on the left and right sides of the placement assembly.

[0024] Furthermore, the rear air outlet component includes a rear air outlet plate and a rear air nozzle. The rear air outlet plate is arranged on the rear side of the top surface of the placement component. The rear air outlet plate is a hollow structure. A plurality of rear air nozzles are arranged on the front side of the rear air outlet plate. The rear air outlet plate is connected to the delivery pump through a pipeline.

[0025] Furthermore, the left and right air outlet components include an air outlet lifting rod, left and right air outlet plates, left and right air nozzles, a mounting plate, and a distance sensor. A pair of the air outlet lifting rods are respectively mounted on both sides of the top surface of the placement component. The left and right air outlet plates are mounted on the top of the air outlet lifting rods. The left and right air outlet plates are hollow structures. A plurality of left and right air nozzles are arranged on one side of the left and right air outlet plates facing the middle of the inner cavity of the box body. The left and right air outlet plates are connected to the delivery pump through a pipeline.

[0026] The mounting plate is arranged at the bottom of the left and right air outlet plates, and the distance sensor is arranged on one side of the mounting plate facing the middle of the inner cavity of the box body.

[0027] Furthermore, a plurality of temperature and humidity sensors are installed on the side walls of the inner cavity of the box.

[0028] Furthermore, an introduction pump is installed on the rear side of the box body, and the input end of the introduction pump is connected to the heating chamber through a pipeline.

[0029] Advantages of the present invention:

[0030] The technical solution of the present application sets a heat preservation cavity on the side wall of the box, so that the temperature inside the box is kept as consistent as possible, and the constant temperature effect is better. By placing the components, the contact area of ​​the concrete test block with the air can be increased as much as possible, so that the temperature transfer on each surface is kept uniform. At the same time, with the air outlet component, water vapor can be transported to the inside of the box from all angles to regulate the temperature and humidity inside the box, so that the temperature transfer on the surface of the concrete test block is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The figure is a schematic diagram of the structure of concrete curing equipment.

[0032] Figure 2 This is a schematic diagram of the box door opening.

[0033] Figure 3 A schematic diagram of the cross-sectional structure of a concrete curing equipment Figure 1 .

[0034] Figure 4 A schematic diagram of the cross-sectional structure of a concrete curing equipment Figure 2 .

[0035] Figure 5 It is a schematic diagram of the structure of the left and right side air outlet components.

[0036] Figure 6 This is a schematic diagram of the placement structure.

[0037] Figure 7 It is a schematic diagram of the cross-sectional structure of the insulation chamber.

[0038] In the figure: 1. box body, 11. box door, 111. sealing plate, 12. insulation chamber, 13. operation chamber, 131. gas chamber, 132. heating chamber;

[0039] 2. Temperature and humidity adjustment component, 21. barrier plate, 22. heat conducting plate, 23. upper plate, 24. one-way valve, 25. delivery pump, 251. extension tube, 252. micro sensor, 26. heating wire, 261. heating ring, 262. bracket;

[0040] 3. Placement assembly, 31. First floor assembly, 311. Placement plate, 312. Placement piece, 3121. Bottom plate, 3122. Plug-in rod, 3123. Telescopic top rod, 3124. Top support, 32. Second floor assembly, 33. Second floor lifting push rod;

[0041] 4. Air outlet assembly, 41. Rear air outlet assembly, 411. Rear air outlet plate, 412. Rear air nozzle, 42. Left and right air outlet assemblies, 421. Air outlet lifting rod, 422. Left and right air outlet plates, 423. Left and right air nozzles, 424. Mounting plate, 425. Distance sensor;

[0042] 5. Temperature and humidity sensor;

[0043] 6. Import pump; DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0045] An embodiment of the present application provides a concrete curing device.

[0046] Embodiment 1, as Figure 1-7 shown.

[0047] A concrete curing device includes a box 1, wherein the box 1 is a box 1 structure with an open front side, and further, a box door 11 is rotatably connected to the front side of the box 1. A sealing plate 111 adapted to the inner cavity of the box 1 is installed inside the box door 11, so that the sealing performance of the interior of the box 1 is better and its thermal insulation performance is increased.

[0048] Each side wall of the box body 1 is a hollow structure, and the hollow structure constitutes a heat preservation cavity 12.

[0049] A concrete curing device comprises a temperature and humidity adjustment component 2 installed in the heat preservation chamber 12.

[0050] The temperature and humidity adjustment assembly 2 includes a baffle plate 21 , a heat conducting plate 22 , an upper plate 23 , a one-way valve 24 , a delivery pump 25 , and a heating wire 26 .

[0051] The insulation chamber 12 in the rear side wall of the box body 1 is provided with the blocking plates 21 on both the upper and lower sides, and the heat conducting plates 22 are respectively installed on the left and right sides. The front end of the heat conducting plate 22 extends to the front end of the insulation chamber 12. The two blocking plates 21, the two heat conducting plates 22 and the side walls of the insulation chamber 12 enclose a closed space, which is the operation chamber 13. The upper plate 23 is provided on the upper part of the operation chamber 13. The upper plate 23 divides the operation chamber 13 into two parts, the upper part of which is the gas chamber 131, and the lower part is the heating chamber 132, the heating wire 26 is installed at the bottom of the heating chamber 132, and the interior of the heating chamber 132 is filled with pure water. The middle of the upper plate 23 is provided with a plurality of air holes, and the one-way valve 24 is installed inside the air hole. The water vapor in the heating chamber 132 can pass through the one-way valve 24 to enter the gas chamber 131. The side wall of the gas chamber 131 is installed with a delivery pump 25, and the input end of the delivery pump 25 and the gas chamber 131, and the output end of the delivery pump 25 and the inner cavity of the box body 1 are connected through pipelines. The heating chamber 132 and the heat preservation chamber 12 are filled with pure water. The heating wire 26 in the heating chamber 132 heats the water to boiling and generates water vapor. The water vapor passes through the one-way valve 24 and enters the gas chamber 131. Then the delivery pump 25 delivers hot air to the interior of the box body 1. To increase the temperature and humidity inside the box body 1. At the same time, when the heating wire 26 heats the water in the heating chamber 132, the heat conducting plates 22 on both sides of the heating chamber 132 can transfer heat to the heat preservation chamber 12, which can heat the water in the heat preservation chamber 12 on the one hand, and transfer heat to the inside of the box 1 through the side wall of the box 1 on the other hand, so as to increase the temperature in the inner cavity of the box 1. When the water in the heating chamber 132 is heated up, the overall heat preservation performance of the box 1 can be further improved.

[0052] Furthermore, the heating wire 26 includes a heating ring 261 and a bracket 262 . A pair of the brackets 262 are disposed in the middle of the bottom surface of the heating chamber 132 , and a plurality of the heating rings 261 are installed between two of the brackets 262 .

[0053] An extension tube 251 is installed at the output end of the delivery pump 25, and the other end of the extension tube 251 is connected to the inner cavity of the box body 1. A micro sensor 252 is installed inside the extension tube 251. The micro sensor 252 is a temperature and humidity sensor 5, which can detect the temperature and humidity of the air delivered to the inner cavity of the box body 1 by the delivery pump 25 in real time, and then can be fed back to the control structure to control the heating wire 26 to increase or decrease the power.

[0054] A concrete curing device comprises a placement component 3 installed in the inner cavity of a box body 1 for placing a concrete specimen.

[0055] Furthermore, the placement assembly 3 includes a first-layer assembly 31 and a second-layer assembly 32, and the second-layer assembly 32 is installed below the first-layer assembly 31. The first-layer assembly 31 and the second-layer assembly 32 can respectively place concrete specimens.

[0056] The first layer assembly 31 includes a placement plate 311 and a placement piece 312. A pair of support bars are provided on the inner side wall of the box body 1. The placement plate 311 is placed on the top of the support bars. A plurality of placement pieces 312 are plugged into the top of the placement plate 311. The placement pieces 312 can be plugged into the surface of the placement plate 311 at will according to the size and shape of the concrete specimen, so that the concrete specimen can be placed on the top of the placement piece 312, and the concrete specimen can be supported by the placement piece 312.

[0057] The placement board 311 is composed of a plurality of slats and is divided into two layers. The slats of the two layers are evenly spaced, and the slats of the upper layer are perpendicular to the slats of the lower layer. The placement board 311 is a mesh structure, and the placement piece 312 is inserted at the intersection of the two layers of slats.

[0058] The placement member 312 includes a bottom plate 3121, a plug rod 3122, a telescopic top rod 3123, and a top support 3124. The plug rod 3122 is arranged at the corners of the bottom surface of the bottom plate 3121, and the telescopic top rod 3123 is installed at the center of the top surface of the bottom plate 3121. The telescopic top rod 3123 is an electric push rod, and the top support 3124 is arranged at the output end of the telescopic top rod 3123. According to the size and shape of the concrete specimen, the extension or retraction length of the telescopic top rod 3123 is adjusted, so that the top support 3124 can increase the contact area between the concrete specimen and the air, that is, keep the concrete specimen in a suspended state as much as possible. It is convenient to increase the temperature transfer of each surface and make the temperature transfer more uniform. The top support 3124 is in the shape of a hemisphere, a semi-ellipsoid, a cuboid, a cube, etc.

[0059] The second-layer assembly 32 has the same structure as the first-layer assembly 31, and a second-layer lifting push rod 33 is installed between the second-layer assembly 32 and the first-layer assembly 31. The second-layer lifting push rod 33 is an electric push rod, through which the height of the second-layer assembly 32 can be changed to adapt to the size and shape of the concrete specimen to be placed.

[0060] A concrete curing device comprises an air outlet component 4 installed on one side of the placement component 3 to increase the air outlet of water vapor so that it can be blown into the inner cavity of the box body 1 from multiple angles.

[0061] Furthermore, the air outlet component 4 includes a rear air outlet component 41 and left and right air outlet components 42 . The rear air outlet component 41 is installed on the rear side of the placement component 3 , and the left and right air outlet components 42 are installed on the left and right sides of the placement component 3 .

[0062] The rear air outlet assembly 41 includes a rear air outlet plate 411 and a rear air nozzle 412. The rear air outlet plate 411 is arranged at the rear side of the top surface of the placement assembly 3. The rear air outlet plate 411 is a hollow structure. A plurality of rear air nozzles 412 are arranged at the front side of the rear air outlet plate 411. The rear air outlet plate 411 is connected to the delivery pump 25 through a pipeline. The delivery pump 25 delivers the water vapor in the gas cavity 131 into the rear air outlet plate 411 and blows it out through the rear air nozzle 412. That is, it blows from the rear side of the concrete specimen to the surface of the concrete specimen.

[0063] The left and right air outlet components 42 include air outlet lifting rods 421, left and right air outlet plates 422, left and right air nozzles 423, mounting plates 424, and distance sensors 425. A pair of air outlet lifting rods 421 are respectively mounted on both sides of the top surface of the placement component 3. The left and right air outlet plates 422 are mounted on the top of the air outlet lifting rods 421. The left and right air outlet plates 422 are hollow structures. A plurality of left and right air nozzles 423 are arranged on one side of the left and right air outlet plates 422 facing the middle of the inner cavity of the box body 1. The left and right air outlet plates 422 are connected to the delivery pump 25 through a pipeline. The delivery pump 25 delivers the water vapor in the gas cavity 131 into the left and right air outlet plates 422, and then blows it out through the left and right air nozzles 423. That is, it blows from the left and right sides of the concrete specimen to the surface of the concrete specimen.

[0064] The mounting plate 424 is disposed at the bottom of the left and right air outlet plates 422, and the distance sensor 425 is disposed on one side of the mounting plate 424 facing the middle of the inner cavity of the box body 1. The height of the concrete specimen placed on the surface of the placing component 3 can be detected by the distance sensor 425, and then fed back to the controller to control the air outlet lifting rod 421 to rise or retract. The left and right air outlet plates 422 are directly facing the top surface of the concrete specimen. When blowing toward the concrete specimen, part of the wind will blow to the top surface of the concrete specimen, making the temperature of each surface of the concrete specimen more uniform.

[0065] A number of temperature and humidity sensors 5 are installed on the side wall of the inner cavity of the box 1 to monitor the temperature and humidity inside the box 1 in real time. A controller is installed on the rear side of the box 1 to control the various electrical components in the maintenance equipment. When the temperature and humidity are low, the heating wire 26 increases the power; when the temperature and humidity meet the standard, the heating wire 26 stops working.

[0066] An introduction pump 6 is installed at the rear side of the box 1, and the input end of the introduction pump 6 is connected to the heating chamber 132 through a pipeline. When the temperature inside the box 1 reaches the standard and the humidity is low, the introduction pump 6 is started to pass air into the heating chamber 132, and the air passes through the heating chamber 132 and enters the gas chamber 131, and then is sent into the box 1 by the delivery pump 25 to increase the humidity inside the box 1.

[0067] When the present invention is used:

[0068] The box door is opened, and the height of the second-layer assembly and the position and height of each placement piece are adjusted according to the size and shape of the concrete specimen. After the adjustment is completed, the concrete specimen is placed on the surface of the placement piece.

[0069] Then the box door is closed, and the start, stop and working power of the heating wire are controlled according to the temperature and humidity detected by the temperature and humidity sensor.

[0070] When the temperature and humidity inside the box are low, the heating wire in the heating chamber heats the water to boiling and generates water vapor. The water vapor passes through the one-way valve and enters the gas chamber. The delivery pump then delivers hot air to the inside of the box and blows it out from all angles through the air outlet assembly. This increases the temperature and humidity inside the box. At the same time, when the heating wire heats the water in the heating chamber, the heat conduction plates on both sides of the heating chamber can transfer heat to the insulation chamber. On the one hand, it can heat the water in the insulation chamber, and on the other hand, it can transfer heat to the inside of the box through the side walls of the box to increase the temperature in the inner chamber of the box.

[0071] When the temperature inside the box reaches the standard and the humidity is low, the introduction pump is started to pass air into the heating chamber. The air passes through the heating chamber and enters the gas chamber, and is then sent into the box by the delivery pump to increase the humidity inside the box.

[0072] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0073] Those skilled in the art will easily think of other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present application. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present application are pointed out by the claims. It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is limited only by the attached claims.

Claims

1. A concrete curing device, characterized in that: The box body comprises a box body structure with an open front side, and each side wall of the box body is a hollow structure, which constitutes a heat preservation cavity; A temperature and humidity adjustment component is installed in the heat preservation chamber; A placement component is installed in the inner cavity of the box; The air outlet component is installed on one side of the placement component.

2. A concrete curing device according to claim 1, characterized in that: The front side of the box body is rotatably connected with a box door.

3. A concrete curing device according to claim 1, characterized in that: A sealing plate adapted to the inner cavity of the box is installed on the inner side of the box door.

4. A concrete curing device according to claim 1, characterized in that: The temperature and humidity adjustment assembly includes a baffle plate, a heat conducting plate, an upper plate, a one-way valve, a delivery pump, and a heating wire; The insulation cavity in the rear side wall of the box body is provided with the baffle plates on the upper and lower sides, and the heat-conducting plates are respectively installed on the left and right sides, the front end of the heat-conducting plate extends to the front end of the insulation cavity, and the two baffle plates, the two heat-conducting plates and the side walls of the insulation cavity enclose a closed space, which is an operation cavity. The upper part of the operation cavity is provided with the upper plate, and the upper plate divides the operation cavity into two parts, the upper part of which is a gas cavity, and the lower part is a heating cavity. The heating wire is installed at the bottom of the heating cavity, and the interior of the heating cavity is filled with pure water. A plurality of air holes are opened in the middle of the upper plate, and the one-way valve is installed in the air hole, so that water vapor in the heating cavity can pass through the one-way valve into the gas cavity, and a delivery pump is installed on the side wall of the gas cavity, and the input end of the delivery pump and the gas cavity are connected as well as the output end of the delivery pump and the inner cavity of the box body through pipelines.

5. A concrete curing device according to claim 4, characterized in that: The heating wire comprises a heating ring and a bracket. A pair of the brackets are arranged in the middle of the bottom surface of the heating chamber, and a plurality of the heating rings are installed between two of the brackets.

6. A concrete curing device according to claim 4, characterized in that: An extension tube is installed at the output end of the delivery pump, the other end of the extension tube is communicated with the inner cavity of the box, and a micro sensor is installed inside the extension tube.

7. The concrete curing equipment according to claim 1, characterized in that: The placement component includes a first-layer component and a second-layer component, and the second-layer component is installed under the first-layer component.

8. A concrete curing device according to claim 7, characterized in that: The first layer component includes support bars, a placement plate, and placement pieces. A pair of support bars are arranged on the side wall of the inner cavity of the box body. The placement plate is placed on the top of the support bars, and a plurality of the placement pieces are plugged into the top of the placement plate.

9. A concrete curing device according to claim 8, characterized in that: The placement board is composed of a plurality of slats and is divided into two layers. The slats of the two layers are evenly spaced, the slats of the upper layer are perpendicular to the slats of the lower layer, the placement board is a mesh structure, and the placement piece is inserted at the intersection of the slats of the two layers.

10. The concrete curing equipment according to claim 8, characterized in that: The placement piece includes a bottom plate, a plug-in rod, a telescopic top rod, and a top support. The plug-in rod is arranged at the corner of the bottom surface of the bottom plate, the telescopic top rod is installed at the center of the top surface of the bottom plate, and the top support is arranged at the output end of the telescopic top rod.

Citation Information

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