A concrete curing device

Abstract

The utility model provides a kind of concrete curing device, the concrete curing technical field, including box, further include: air injection component, motor, pivot, drive rod, drive pin, connecting seat and limiting component, air injection component is set in box inner cavity, for conveying steam to box inner cavity;Motor is installed at the bottom end of box;Pivot is connected to the output end of motor, and pivot extends into box inner cavity;Drive rod one end is fixedly installed on pivot.The utility model adopts the mode of steam input at the bottom end of equipment, utilizes the natural convection of steam from bottom to top, significantly shortens the time of steam filling the inner cavity of curing device, makes steam fast and evenly contact concrete precast, maximizes heat energy utilization rate, improves curing efficiency;Multiple nozzles are arranged in rectangular cross array at the bottom end of concrete piece, construct multidimensional steam supply network, realize steam multidirectional even output, improve steam coverage uniformity and heat conduction efficiency, shorten curing cycle and improve curing quality homogeneity.

Description

Technical Field

[0001] This utility model belongs to the field of concrete curing technology, and specifically relates to a concrete curing device. Background Technology

[0002] Steam curing of concrete components is a process that uses steam to heat and increase the temperature and humidity of the curing environment, thereby accelerating the cement hydration reaction. It generally consists of four stages: static curing, heating, constant temperature, and cooling. The temperature, humidity, and duration of each stage must be controlled to prevent concrete cracking. This method can shorten the curing period, improve early strength, and is suitable for precast components and winter construction, making it an important technical means to ensure concrete quality and construction efficiency.

[0003] A related technology (Chinese Patent No. CN222360384U) discloses a steam curing device for precast concrete components, including a steam furnace with a coal combustion chamber inside. Above the coal combustion chamber, a water storage chamber is located inside the steam furnace, and a steam output pipe connected to the water storage chamber is installed on the top of the steam furnace. In this steam curing device for precast concrete components, coal is added to the coal combustion chamber for combustion, and tap water is added to the water storage chamber through a water supply spiral pipe. The steam generated by heating is output to the precast concrete components through the steam output pipe, and the flue gas generated by combustion is transported to a circular shell through an exhaust pipe.

[0004] In the aforementioned steam curing process for concrete components, steam is introduced into the curing device's inner cavity from the top of the equipment via a steam output pipe. However, because steam is less dense than air, this top-input method requires a longer time for the steam to evenly fill the entire curing space, thus compressing the effective curing time for the precast concrete components and reducing curing efficiency. Utility Model Content

[0005] To address the problem in existing technologies where steam is input into the curing device's inner cavity from the top via a steam output pipe, resulting in a prolonged time for the steam to evenly fill the entire curing space and compressing the effective curing time for precast concrete components, thus reducing curing efficiency, this invention provides a concrete curing device that inputs steam from the bottom of the device. Utilizing the physical property that steam's density is less than air, a bottom-up natural convection flow path is constructed. This steam supply method aligns with the fluid dynamics principle of rising hot air, significantly shortening the time it takes for steam to fill the curing device's inner cavity. This allows the steam to quickly and evenly contact the precast concrete components, maximizing the effective utilization rate of steam thermal energy. The specific technical solution is as follows:

[0006] A concrete curing device includes a housing, and further includes: a jetting assembly, a motor, a rotating shaft, a drive rod, a drive pin, a connecting seat, and a limiting assembly. The jetting assembly is disposed within the inner cavity of the housing and is used to deliver steam into the inner cavity of the housing. The motor is mounted at the bottom end of the housing. The rotating shaft is connected to the output end of the motor and extends into the inner cavity of the housing. One end of the drive rod is fixedly mounted on the rotating shaft. The drive pin is rotatably connected to the other end of the drive rod. The connecting seat is fixedly mounted on the top end of the drive pin. The limiting assembly is disposed within the inner cavity of the housing and is used to limit the movement direction of the connecting seat.

[0007] The jet assembly includes: a main steam delivery pipe, a grid pipe, and nozzles. The main steam delivery pipe is configured as a rectangular ring. The grid pipe is disposed inside the main steam delivery pipe and is connected to the inner cavity of the main steam delivery pipe. Multiple nozzles are provided, and the multiple nozzles are connected on the grid pipe in a rectangular cross array and arranged at the bottom end of the concrete component.

[0008] In the above technical solution, the connecting seat is fixedly installed on the mesh pipe.

[0009] In the above technical solution, the limiting component includes: a limiting seat, a moving rod, and a drive frame. The limiting seat is fixedly installed on the bottom of the inner wall of the box. The moving rod slides horizontally through the side wall of the limiting seat. The drive frame is fixed and vertically installed on the left end of the moving rod. The drive frame has an inner cavity extending from top to bottom for the drive pin to slide.

[0010] The above technical solution also includes: a corrugated pipe and a connecting pipe, one end of the corrugated pipe being connected to the inner cavity of the main steam conveying pipe; the connecting pipe being connected to the other end of the corrugated pipe, and the main steam conveying pipe extending forward out of the side wall of the housing.

[0011] The above technical solution also includes dynamic support components. Four sets of dynamic support components are provided and are respectively located at the four corners of the steam conveying main pipe. Each set of dynamic support components includes: a vertical rod, a ball bearing, and an annular groove. The vertical rod is fixedly installed on the bottom end of the outer wall of the steam conveying main pipe. The ball bearing is rotatably disposed at the bottom end of the vertical rod. The annular groove is opened at the bottom end of the inner wall of the box, and the ball bearing is rotatably embedded in the inner cavity of the annular groove.

[0012] In the above technical solution, the diameter of the annular groove is the same as the rotation diameter of the drive pin.

[0013] The above technical solution also includes: a side baffle, a raised edge, and a mesh plate. The side baffle is fixedly installed on the box body; the raised edge is installed at the bottom of the inner side wall of the side baffle, and the raised edge is smaller than the diameter of the side baffle; the mesh plate is fixedly installed inside the raised edge, and the mesh plate has holes for steam to pass through.

[0014] The above technical solution also includes four supports, which are located at the four corners of the bottom of the box.

[0015] In the above technical solution, the height of the support is higher than the height of the motor.

[0016] The concrete curing device of this utility model has the following advantages compared with the prior art:

[0017] I. In response to the problem that existing steam is input into the curing device from the top of the equipment through a steam output pipe, which results in the steam taking a long time to evenly fill the entire curing space and compressing the effective curing time of the precast concrete, thus reducing the curing efficiency, this utility model adopts a bottom-end steam input method. Utilizing the physical property that steam density is less than that of air, a natural convection flow path is constructed from bottom to top. This steam supply method conforms to the fluid dynamics principle of rising hot air, which can significantly shorten the time for steam to fill the curing device cavity, allowing the steam to quickly and evenly contact the precast concrete, maximizing the effective utilization rate of steam heat energy. Compared with the traditional top input method, it significantly improves the efficiency of concrete steam curing.

[0018] II. This utility model constructs a multi-dimensional steam supply network by arranging multiple nozzles in a rectangular cross array at the bottom of the concrete component. This array layout can achieve uniform output of steam from the bottom of the concrete component in multiple directions. Compared with the traditional single air outlet mode, it significantly improves the spatial uniformity of steam coverage and heat conduction efficiency, ensuring that all areas of the bottom surface of the concrete component receive sufficient heat and humidity simultaneously, effectively shortening the curing cycle and improving the homogeneity of curing quality.

[0019] Third, addressing the issue of uneven concrete curing caused by fixed output positions in traditional steam curing, this invention utilizes a combination of components such as a drive rod, drive pin, and connecting seat to achieve synchronous dynamic displacement of the main steam delivery pipe, grid pipe, and nozzles. This enables the synchronous dynamic displacement of all nozzles, allowing for dynamic changes in the steam spray coverage area. Furthermore, this invention, based on a rectangular cross-array nozzle configuration, also features dynamically movable nozzle positions. This method allows for flexible spatial adjustment, dynamically altering the steam spray coverage area during curing. By employing a multi-dimensional steam distribution pattern, it ensures that all parts of the concrete component receive uniform and sufficient heat and humidity supply, effectively improving the consistency and reliability of curing quality.

[0020] IV. The present invention configures dynamic support components at the four corners of the steam conveying main pipe, and achieves stability assurance during the movement process through an adaptive adjustment mechanism. The support system can respond to the position changes of the steam conveying main pipe in real time, ensuring that the steam conveying main pipe, grid pipe and nozzle always maintain a balanced state during the displacement adjustment process, effectively preventing the risk of tipping due to the shift of the center of gravity, and providing reliable mechanical stability assurance for equipment operation.

[0021] In summary, this invention employs a bottom-injection steam method, utilizing the natural convection of steam from bottom to top to significantly shorten the time required for steam to fill the inner cavity of the curing device. This allows the steam to quickly and evenly contact the precast concrete components, maximizing heat energy utilization and improving curing efficiency. Multiple nozzles are arranged in a rectangular cross array at the bottom of the concrete components, constructing a multi-dimensional steam supply network. This achieves uniform steam output in multiple directions, improving steam coverage uniformity and heat transfer efficiency, shortening the curing cycle, and enhancing the homogeneity of curing quality. Synchronous dynamic displacement of the nozzles is achieved through component coordination, flexibly adjusting the steam spray coverage area. The multi-dimensional steam distribution pattern ensures that all parts of the concrete component receive uniform heat and humidity, improving the consistency and reliability of curing quality. Dynamic support components are configured at the four corners of the main steam delivery pipe. Through an adaptive adjustment mechanism, these components respond to position changes in real time, ensuring the main steam delivery pipe and related components remain balanced during displacement adjustment, preventing tipping, and providing mechanical stability for equipment operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the side baffle of this utility model;

[0023] Figure 2 This is a front view of the housing of this utility model;

[0024] Figure 3 This is a top view of the annular groove of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the grid pipe of this utility model;

[0026] Figure 5 This is a schematic diagram of the steam conveying main pipe of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the connector of this utility model;

[0028] Figures 1 to 6In the middle, 1. Box body, 2. Side baffle, 3. Raised edge, 4. Mesh plate, 5. Steam delivery main pipe, 6. Mesh pipe, 7. Nozzle, 8. Corrugated pipe, 9. Connecting pipe, 10. Motor, 11. Rotating shaft, 12. Drive rod, 13. Drive pin, 14. Connecting seat, 15. Limiting seat, 16. Moving rod, 17. Drive frame, 18. Vertical rod, 19. Ball bearing, 20. Annular groove, 21. Support. Detailed Implementation

[0029] The following are specific implementation cases and appendices. Figures 1 to 6 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0030] Main references Figures 3 to 6 As shown, a concrete curing device includes a housing 1, and further includes: a jetting assembly, a motor 10, a rotating shaft 11, a drive rod 12, a drive pin 13, a connecting seat 14, and a limiting assembly. The jetting assembly is disposed in the inner cavity of the housing 1 and is used to deliver steam into the inner cavity of the housing 1. The motor 10 is installed at the bottom end of the housing 1. The rotating shaft 11 is connected to the output end of the motor 10 and extends into the inner cavity of the housing 1. One end of the drive rod 12 is fixedly installed on the rotating shaft 11. The drive pin 13 is rotatably connected to the other end of the drive rod 12 through a bearing. The connecting seat 14 is fixedly installed on the top end of the drive pin 13. The limiting assembly is disposed in the inner cavity of the housing 1 and is used to limit the movement direction of the connecting seat 14. When the motor 10 is turned on, it drives the rotating shaft 11, the drive rod 12, and the drive pin 13 at its output end to rotate synchronously in the circumferential direction, so as to realize the dynamic displacement of the connecting seat 14 under the guidance of the limiting assembly, thereby realizing the dynamic displacement of the jetting assembly and changing the steam injection range.

[0031] This invention utilizes a bottom-injection steam design, leveraging the physical property that steam is less dense than air to create a bottom-up natural convection flow path. Following the fluid dynamics principle of rising hot air, this design significantly reduces the time required for steam to evenly fill the curing device's cavity, promoting rapid and uniform contact between steam and precast concrete components. This maximizes the effective utilization of steam thermal energy, significantly improving the efficiency of concrete steam curing compared to traditional top-injection methods.

[0032] Furthermore, this invention utilizes a dynamically movable jet assembly design to achieve flexible adjustment of its spatial position. This technical solution allows for dynamic changes in the steam jet coverage area during curing, ensuring uniform and sufficient heat and humidity supply to all parts of the concrete component through a multi-dimensional steam distribution pattern, effectively improving the consistency and reliability of curing quality.

[0033] Main references Figures 3 to 6As shown, the jet assembly includes: a steam delivery main pipe 5, a grid pipe 6, and nozzles 7. The steam delivery main pipe 5 is configured as a rectangular ring. The grid pipe 6 is disposed inside the steam delivery main pipe 5 and is connected to the inner cavity of the steam delivery main pipe 5. Multiple nozzles 7 are provided, and the multiple nozzles 7 are connected in a rectangular cross array on the grid pipe 6 and arranged at the bottom end of the concrete component. The connecting seat 14 is fixedly installed on the grid pipe 6. The displacement of the steam delivery main pipe 5 and the grid pipe 6 can drive the synchronous displacement of the connecting seat 14. This utility model constructs a multi-dimensional steam supply network by arranging multiple nozzles 7 in a rectangular cross array at the bottom end of the concrete component. This array layout realizes the uniform output of steam from multiple directions at the bottom. Compared with the traditional single air outlet mode, it significantly improves the spatial uniformity of steam coverage and heat conduction efficiency, ensuring that all areas of the bottom surface of the concrete component obtain sufficient heat and humidity simultaneously, effectively shortening the curing cycle and improving the homogeneity of curing quality.

[0034] Main references Figure 6 As shown, the limiting assembly includes: a limiting seat 15, a moving rod 16, and a drive frame 17. The limiting seat 15 is fixedly installed on the bottom of the inner wall of the housing 1. The moving rod 16 slides horizontally through the side wall of the limiting seat 15. The drive frame 17 is fixed and vertically installed on the left end of the moving rod 16. The drive frame 17 has an inner cavity through which the drive pin 13 slides from top to bottom.

[0035] The motor 10, when turned on, drives the output shaft 11, drive rod 12, and drive pin 13 to rotate synchronously in a circumferential direction. The circumferentially rotating drive pin 13 slides relative to the inner cavity of the drive frame 17, causing the drive frame 17 to move back and forth. At the same time, it causes the connecting seat 14 to move synchronously with the steam delivery main pipe 5 fixedly connected to it. This achieves dynamic displacement of the steam delivery main pipe 5, the grid pipe 6, and the nozzle 7, thereby enabling the nozzle 7 to flexibly adjust the steam spray coverage area and achieve steam curing of concrete components more quickly and evenly.

[0036] Main references Figure 1 , Figure 5As shown, it also includes: a corrugated pipe 8 and a connecting pipe 9. One end of the corrugated pipe 8 is connected to the inner cavity of the steam conveying main pipe 5; the connecting pipe 9 is connected to the other end of the corrugated pipe 8, and the steam conveying main pipe 5 extends forward out of the side wall of the housing 1; steam is delivered to the connecting pipe 9 through an external steam conveyor for concrete curing, and the steam is conveyed through the connecting pipe 9, the corrugated pipe 8, the steam conveying main pipe 5, and the grid pipe 6, and is sprayed upward at multiple nozzles 7 arranged in a matrix cross array to achieve steam curing of the concrete components. In this application, the connecting pipe 9 is externally connected to an existing commercially available steam conveyor for concrete curing, that is, it can connect to the connecting pipe 9 and deliver steam to the corrugated pipe 8, the steam conveying main pipe 5, the grid pipe 6, and the nozzles 7 through the connecting pipe 9. The external steam conveyor can be a commercially available model that can achieve the purpose of providing steam and delivering it to this equipment for application, and will not be elaborated or limited here.

[0037] Main references Figures 3 to 5 As shown, it also includes dynamic support components, of which four sets are set at the four corners of the steam conveying main pipe 5. Each set of dynamic support components includes: a vertical rod 18, ball bearings 19, and an annular groove 20. The vertical rod 18 is fixedly installed at the bottom of the outer wall of the steam conveying main pipe 5; the ball bearings 19 are rolled at the bottom end of the vertical rod 18 via bearings; the annular groove 20 is opened at the bottom of the inner wall of the housing 1, and the ball bearings 19 are rolled and embedded in the inner cavity of the annular groove 20; when the nozzle 7 performs a rotational dynamic displacement, it drives the vertical rod 18 and ball bearings 19 at the four corners of the steam conveying main pipe 5 to move synchronously, thereby causing the ball bearings 19 to roll along the corresponding annular groove 20. This rolling support structure provides continuous and stable mechanical support for the movement of the steam conveying main pipe 5, the grid pipe 6, and the nozzle 7 by dynamically following the displacement, ensuring the overall stability of the steam curing system during dynamic operation.

[0038] Specifically, the diameter of the annular groove 20 is the same as the rotation diameter of the drive pin 13, so as to ensure that when the drive pin 13 rotates circumferentially around the rotating shaft 11, it can cause the vertical rod 18 and the ball 19 to rotate stably and synchronously along the inner cavity of the annular groove 20, and ensure that there is no interference between the two displacements.

[0039] Main references Figure 1 and Figure 2 As shown, it also includes: a side baffle 2, a raised edge 3, and a mesh plate 4. The side baffle 2 is fixedly installed on the box body 1; the raised edge 3 is installed at the bottom of the inner side wall of the side baffle 2, and the raised edge 3 is smaller than the diameter of the side baffle 2; the mesh plate 4 is fixedly installed inside the raised edge 3, and the mesh plate 4 has holes for steam to pass through; the concrete component to be cured is placed on top of the mesh plate 4, and steam is delivered to the connecting pipe 9 through an external steam conveyor for concrete curing.

[0040] Main references Figure 1 and Figure 2 As shown, it also includes four supports 21, which are located at the four corners of the bottom of the housing 1 to support and lift the housing 1 off the ground. The height of the supports 21 is higher than the height of the motor 10, thereby ensuring that there is still enough space between the motor 10 and the ground after the motor 10 is installed. That is, the supports 21 provide enough space for the installation of the motor 10 at the bottom of the housing 1.

[0041] Additionally, steam is introduced into the bottom of chamber 1, causing it to rise and act on the concrete components placed on the mesh plate 4, achieving continuous steam supply and continuous steam curing of the concrete components. Therefore, the top of chamber 1 can be configured as either closed or open, as long as the purpose of steam curing the concrete components is achieved; there are no restrictions on whether it is open or closed. Furthermore, a commonly used dehumidifier can be connected to this equipment to adsorb and expel the condensed air generated inside chamber 1. This is existing technology, and it can be assembled and used with existing commercially available facilities for steam curing concrete components; further details and limitations are not provided here.

[0042] In this application, the motor 10 adopts a self-locking motor that is commonly used in the market and whose output end can be locked. When it stops, the output end can be self-locked and will not rotate under external force. The motor 10 is a commonly used forward and reverse motor, and its output end can rotate in the forward or reverse direction according to the usage requirements. In addition, in order to prevent steam from affecting the motor 10 and causing it to get damp, a protective cover can be set on the outside of the motor 10. This is the prior art, and it is sufficient to meet the above usage requirements. The model of the above-mentioned existing components will not be limited or described in detail.

[0043] The working principle of the concrete curing device in this embodiment is as follows:

[0044] The concrete component to be cured is placed on top of the mesh plate 4. Steam is delivered to the connecting pipe 9 through an external steam conveyor for concrete curing. The steam is delivered through the connecting pipe 9, the corrugated pipe 8, the main steam conveying pipe 5, and the mesh pipe 6. The steam is sprayed upwards by multiple nozzles 7 arranged in a matrix cross array to achieve steam curing of the concrete component on the mesh plate 4.

[0045] During this process, the motor 10 drives the output shaft 11, drive rod 12, and drive pin 13 to rotate synchronously in the circumferential direction. The circumferentially rotating drive pin 13 slides relative to the inner cavity of the drive frame 17, causing the drive frame 17 to move back and forth. At the same time, the connecting seat 14 drives the steam delivery main pipe 5, which is fixedly connected to it, to move synchronously. This achieves dynamic displacement of the steam delivery main pipe 5, the grid pipe 6, and the nozzle 7, thereby enabling the nozzle 7 to flexibly adjust the steam spray coverage area and achieve steam curing of concrete components more quickly and evenly.

[0046] When the nozzle 7 rotates, it can cause the vertical rods 18 and the balls 19 at the four corners of the steam conveying main pipe 5 to move synchronously, thereby driving the balls 19 to roll along the annular grooves 20 at the corresponding positions, so as to support the dynamic displacement of the steam conveying main pipe 5, the grid pipe 6, and the nozzle 7, and ensure the stability during the steam curing process.

[0047] During the dynamic displacement of the steam conveying main pipe 5, the corrugated pipe 8 can compensate for the relative displacement of the steam conveying main pipe 5, ensuring that the steam conveying main pipe 5 can move normally while the corrugated pipe 8 can continuously maintain the connection between the connecting pipe 9 and the steam conveying main pipe 5, so as to realize the continuous delivery of steam.

[0048] This invention employs a bottom-end steam input method, utilizing the natural convection of steam from bottom to top to significantly shorten the time it takes for steam to fill the inner cavity of the curing device. This allows the steam to quickly and evenly contact the precast concrete components, maximizing heat energy utilization and improving curing efficiency. Multiple nozzles 7 are arranged in a rectangular cross array at the bottom of the concrete components, constructing a multi-dimensional steam supply network. This achieves uniform steam output in multiple directions, improving the uniformity of steam coverage and heat transfer efficiency, shortening the curing cycle, and enhancing the homogeneity of curing quality. Through component cooperation, the nozzles 7 achieve synchronous dynamic displacement, flexibly adjusting the steam spray coverage area. Utilizing a multi-dimensional steam distribution pattern, it ensures that all parts of the concrete component receive uniform heat and humidity, improving the consistency and reliability of curing quality. Dynamic support components are configured at the four corners of the main steam conveying pipe 5. Through an adaptive adjustment mechanism, it responds to position changes in real time, ensuring that the main steam conveying pipe 5 and related components remain balanced during displacement adjustment, preventing tipping, and providing mechanical stability for equipment operation.

[0049] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0050] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0051] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0052] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0053] Unless otherwise stated, the term "multiple" means two or more.

[0054] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0055] The term "and / or" describes the relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A or B, or A and B.

[0056] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A concrete curing device, comprising a housing (1), characterized in that: Also includes: A jet assembly is disposed in the inner cavity of the housing (1) for supplying steam to the inner cavity of the housing (1); Motor (10), the motor (10) is installed at the bottom of the housing (1); A rotating shaft (11) is connected to the output end of the motor (10) and extends into the inner cavity of the housing (1); A drive rod (12), one end of which is fixedly mounted on the rotating shaft (11); Drive pin (13), which is rotatably connected to the other end of drive rod (12); Connecting seat (14), the connecting seat (14) is fixedly installed on the top of the driving pin (13); A limiting component is disposed in the inner cavity of the housing (1) and is used to limit the moving direction of the connecting seat (14); The jet assembly includes: Steam conveying main pipe (5), wherein the steam conveying main pipe (5) is configured as a rectangular ring; A grid pipe (6) is provided inside the steam conveying main pipe (5) and is connected to the inner cavity of the steam conveying main pipe (5); The nozzle (7) is provided in multiple ways, and the multiple nozzles (7) are connected in a rectangular cross array on the grid pipe (6) and arranged at the bottom of the concrete component.

2. The concrete curing device according to claim 1, characterized in that: The connecting seat (14) is fixedly installed on the mesh pipe (6).

3. The concrete curing device according to claim 1, characterized in that: The limiting component includes: Limiting seat (15), the limiting seat (15) is fixedly installed on the bottom of the inner wall of the box (1); The movable rod (16) slides horizontally through the side wall of the limiting seat (15); The drive frame (17) is fixed and vertically installed on the left end of the moving rod (16). The drive frame (17) has an inner cavity through which the drive pin (13) slides from top to bottom.

4. The concrete curing device according to claim 1, characterized in that: Also includes: A corrugated pipe (8), one end of which is connected to the inner cavity of the main steam conveying pipe (5); A connecting pipe (9) is connected to the other end of the corrugated pipe (8), and the steam conveying main pipe (5) extends forward out of the side wall of the box body (1).

5. A concrete curing device according to claim 2, characterized in that: It also includes dynamic support components, of which four sets are provided, respectively located at the four corners of the steam conveying main pipe (5), and each set of the dynamic support components includes: A vertical rod (18) is fixedly installed on the bottom of the outer wall of the steam conveying main pipe (5); A ball bearing (19) is rotatably disposed at the bottom end of the vertical rod (18); An annular groove (20) is formed at the bottom of the inner wall of the box (1), and the ball (19) is rolled and embedded in the inner cavity of the annular groove (20).

6. A concrete curing device according to claim 5, characterized in that: The diameter of the annular groove (20) is the same as the rotation diameter of the drive pin (13).

7. A concrete curing device according to claim 1, characterized in that: Also includes: Side baffle (2), the side baffle (2) is fixedly installed on the box body (1); A raised edge (3) is installed at the bottom of the inner wall of the side baffle (2), and the raised edge (3) is smaller than the diameter of the side baffle (2); Mesh plate (4), which is fixedly installed inside the protruding edge (3), and the mesh plate (4) has holes for steam to pass through.

8. A concrete curing device according to claim 1, characterized in that: It also includes four supports (21), which are located at the four corners of the bottom of the box (1).

9. A concrete curing device according to claim 8, characterized in that: The height of the support (21) is higher than the height of the motor (10).

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