Uniform steam flow structure for mobile formwork steam curing

Abstract

The application provides a mobile formwork steam curing uniform flow guide structure, and relates to the technical field of steam curing, which comprises a hoisting support and a plurality of independent steam curing devices. The independent steam curing device comprises a steam curing shed, a steam spraying assembly, a steam pushing assembly and a steam recycling assembly. The steam spraying assembly is located in the steam curing shed. The steam pushing assembly is arranged below the steam spraying assembly. One end of the steam recycling assembly is connected to the middle of the top of the steam curing shed, and the other end of the steam recycling assembly is connected to the steam spraying assembly. The steam spraying assembly moves along the length direction of the steam curing shed to spray steam, and the steam pushing assembly pushes the steam back and forth towards the surface of the concrete, and pushes the steam to the middle of the steam curing shed. The steam recycling assembly recycles the steam gathered in the middle of the steam curing shed, and continues to control the recycling steam to be guided to the steam spraying assembly according to the temperature and humidity of the recycling steam. The flow guide structure can ensure the steam curing effect of the concrete and reduce the cost of the steam.

Description

Technical Field

[0001] This invention relates to the field of steam curing technology, and in particular to a structure for uniformly guiding steam during steam curing on a movable mold frame. Background Technology

[0002] After concrete is poured outdoors using mobile formwork, it needs to undergo curing to keep it warm and moist, thus accelerating its hardening. Conventional concrete curing methods include natural curing, steam curing, and water spraying.

[0003] In existing outdoor steam curing processes, such as mobile formwork steam curing, the environment is open-air, and steam curing can only be carried out by spraying steam towards the vicinity of the concrete. Due to the contact between the steam and the external environment, not only will the steam curing effect be affected, but the steam will also not be used properly, resulting in a waste of steam resources. Moreover, since the steam is not well targeted to strengthen different areas of the concrete, it is easy to cause poor contact and coverage between the steam and the concrete, which in turn affects the steam curing effect and steam utilization rate. Summary of the Invention

[0004] This invention provides a mobile formwork steam uniform flow guiding structure to solve the technical problems in the prior art where the steam curing environment is in the open air, and steam can only be sprayed near the concrete. Due to the contact between the steam and the external environment, the steam curing effect is not only affected, but also the steam is not used properly, resulting in wasted steam resources. Moreover, because the steam is not well targeted to strengthen different areas of the concrete, the contact effect between the steam and the concrete is poor, and the coverage effect is poor, which in turn affects the curing effect and steam utilization rate.

[0005] To achieve the above and other related objectives, this invention provides a mobile mold steam curing uniform steam guiding structure, comprising: a hoisting bracket and multiple independent steam curing devices, wherein the hoisting bracket splices and hoists the independent steam curing devices; each independent steam curing device includes: a steam curing shed; a steam injection assembly located inside the steam curing shed, extending through the top of the steam curing shed and connected to the hoisting bracket; a pushing assembly located below the steam injection assembly and connected to the steam injection assembly in a transmission manner; and a recovery assembly, one end of which is connected to the middle of the top of the steam curing shed, and the other end of which is connected to the steam injection assembly; wherein, after the steam injection assembly is positioned to a preset steam injection height for the concrete, it moves along the length of the steam curing shed to inject steam for steam curing, while the pushing assembly pushes the steam back and forth toward the concrete surface and pushes the steam to the middle of the steam curing shed; the recovery assembly recovers the steam accumulated in the middle of the steam curing shed, and continues to control the guided steam to the steam injection assembly based on the temperature and humidity values ​​of the recovered steam.

[0006] In one embodiment of the present invention, the steam curing shed includes: a shed support frame, the top of which is connected to both ends of the steam injection assembly; a flow guide top support frame, which is installed in the middle of the top of the shed support frame; a top plate, which is installed on the flow guide top support frame, and the top plate has a plurality of discharge holes, which are connected to one end of the recovery assembly; and a shed cover, which covers the outside of the shed support frame and the flow guide top support frame; wherein, the height of the shed cover on one side of the top of the shed support frame is lower than the height of the shed cover at the corresponding location of the flow guide top support frame, so that the shed cover at the corresponding location of the flow guide top support frame is recessed upward to form a drainage cavity for the recovered steam.

[0007] In one embodiment of the present invention, the steam injection assembly includes: segmented beams, the bottom of which is provided with a slide rail, and multiple segmented beams are connected end to end to form an upper crossbeam structure, the two ends of which are respectively connected to a steam curing shed; segmented pipes, which are installed on the segmented beams and are connected end to end to form a steam transmission pipeline; steam injectors, the tops of multiple steam injectors are slidably disposed on the slide rails, and the steam injectors are symmetrically arranged on both sides of the upper crossbeam structure, and the steam injectors symmetrically arranged on each side are connected by connecting brackets, and the steam injectors are connected to the steam transmission pipeline; and a push drive, which is installed at the lower end of the upper crossbeam structure, and the power output end of the push drive is movably connected to the steam injector closest to it; wherein, the push drive drives the symmetrical steam injectors on each side to move back and forth toward the center of the upper crossbeam structure, so that the steam from the steam injectors is evenly sprayed onto the concrete along the way.

[0008] In one embodiment of the present invention, the segmented pipe is provided with a plurality of steam outlets along its axial direction; the steam injector includes: a steam injection support, the top of which is slidably disposed on a slide rail, and the power output end of the push drive is movably connected to the steam injection support of the nearby steam injector; a lifting drive, which is installed on the steam injection support; and a steam injection connector, which is installed on the power output end of the lifting drive, and the steam inlet end of the steam injection connector is connected to the steam outlet through a steam delivery hose; and an infrared sensor, which is installed at the bottom of the steam injection connector to adjust the height of the steam injection connector according to the height of the concrete by means of the lifting drive.

[0009] In one embodiment of the present invention, the pushing component includes: a lower crossbeam, the upper end of which is connected to the steam injection component via a vertical support; a steam patting component, which is connected to the steam injection component; and a steam pushing component, which is connected to the steam injection component and is drively connected to the lower crossbeam; when the steam injection component moves to inject steam, the linkage steam pushing component is adjusted to an inclined state, pushing the steam injected by the steam injection component toward the center of the steam curing shed and converging, while the steam patting component continuously pats the steam injected along the steam injection path toward the concrete surface.

[0010] In one embodiment of the present invention, the lower crossbeam includes: a crossbeam body with a guide groove; a guide rack slidably disposed in the guide groove, one bottom side of the guide rack engaging with the steam propulsion assembly, and a first stop bar and a second stop bar respectively provided at the bottom ends of the guide rack to control the switching of the tilt state of the steam propulsion assembly; and an elastic element connected between the guide rack and one end of the guide groove.

[0011] In one embodiment of the present invention, the steam-propelling assembly includes: a steam-propelling plate; an adjusting gear, the middle part of which is connected to the top of the steam-propelling plate via a connecting block, and the adjusting gear engaging with a guide rack; and a mounting bracket, one end of which is sleeved on the middle part of the adjusting gear, and the other end of which is connected to the steam-injection assembly; when the adjusting gear is located at the first stop, the steam-propelling plate is in a horizontal state; as the adjusting gear moves toward the center of the steam curing shed under the engagement and transmission with the guide rack, the steam-propelling plate is adjusted to an inclined state, and when it reaches the second stop, it remains in an inclined state under the limit of the second stop, so as to push the steam ejected by the steam-injection assembly toward the center of the steam curing shed.

[0012] In one embodiment of the present invention, the steam injection assembly includes a plurality of steam injectors connected by a connecting bracket; the steam flapping assembly includes: a steam flapping drive, which is installed in the middle of the connecting bracket; a first flapping plate, the top center of which is movably sleeved on the power output end of the steam flapping drive, and a first guide joint on one side of the first flapping plate; a second flapping plate, the top side of which is hinged to the top side of the first flapping plate, and a second guide joint on one side of the second flapping plate; and a flapping guide assembly, which guides the first guide joint and the second guide joint by moving them to cause the first flapping plate and the second flapping plate to flap downwards after opening a preset angle, and to close the first flapping plate and the second flapping plate upwards; wherein the first flapping plate is provided with a first limiting block for limiting the second flapping plate after it opens to the preset angle, and the second flapping plate is provided with a second limiting block for limiting the first flapping plate after it opens to the preset angle.

[0013] In one embodiment of the present invention, the striking guide assembly includes: a striking guide plate disposed on the same side of a first striking plate and a second striking plate, the striking guide plate being connected to a striking air drive, the striking guide plate having a first guide rail corresponding to a first guide joint and a second guide rail corresponding to a second guide joint; an upper limiting block elastically inserted at the top end of the first guide rail and the top end of the second guide rail respectively, to limit the backward movement of the first guide joint after passing the top end of the first guide rail and to limit the backward movement of the second guide joint after passing the top end of the second guide rail; and a lower limiting block elastically inserted at the bottom end of the first guide rail and the bottom end of the second guide rail respectively, to limit the backward movement of the first guide joint after passing the bottom end of the first guide rail and to limit the backward movement of the second guide joint after passing the bottom end of the second guide rail.

[0014] In one embodiment of the present invention, the recovery assembly includes: a recovery pipe, one end of which is connected to the middle of the top of the steam curing shed; a control valve, the other end of which is connected to the control valve, the control valve having an exhaust port, an inlet port, and a delivery port, the delivery port being connected to the steam injection assembly; a temperature sensor and a humidity sensor, which are disposed inside the recovery pipe to obtain the temperature and humidity values ​​of the recovered steam; and a controller, which is disposed inside the control valve and is used to determine whether the temperature and humidity values ​​meet one of the following conditions: the temperature value exceeds a temperature threshold; the humidity value exceeds a humidity threshold; if so, the steam delivery port is controlled to input steam into the steam injection assembly, and the control valve discharges steam from the exhaust port of the recovery pipe; if not, the control valve is controlled to input the recovered steam from the recovery pipe into the steam injection assembly and the delivery port is controlled to be closed.

[0015] The beneficial effects of this invention are as follows: This invention proposes a mobile mold steam curing uniform steam guiding structure. By using a hoisting bracket to assemble multiple independent steam curing devices together, it achieves a comprehensive steam curing treatment of the concrete surface. The steam curing area can be freely selected according to the concrete surface, effectively ensuring steam curing treatment for concrete of different sizes and shapes. By using independent steam curing devices for closed-loop steam curing, it also solves the problem of outdoor open-air steam curing where the steam's contact with the atmosphere after discharge affects the continuous curing effect, leading to increased energy consumption. In the independent steam curing device of this invention, the steam spraying component inside the steam curing shed can move along the length of the shed, ensuring that the steam covers all areas of the concrete during steam curing. To further ensure effective contact between steam and poured concrete, the steam injection assembly moves in conjunction with a pusher assembly to press the steam toward the concrete surface. This enhances the contact effect during steam curing. Additionally, while the pusher assembly presses the steam, it also propels it toward a recovery assembly at the top of the curing shed. This recovery assembly monitors the steam's temperature and humidity. If both the humidity and temperature values ​​meet the requirements for continuous pressing, the recovered steam continues to be injected onto the concrete surface through the steam injection assembly until these values ​​no longer meet the requirements. At this point, the recovered steam is discharged, and new steam is introduced. This continuous utilization of recovered steam effectively reduces the waste caused by direct steam release into the atmosphere during outdoor steam curing, which results in the unused heat and humidity of the steam being wasted during curing and significantly increases curing costs. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the moving mold frame steam uniform flow guiding structure provided in an embodiment of the present invention.

[0018] Figure 2 The diagram shown is a structural schematic of an independent steam curing device provided in an embodiment of the present invention.

[0019] Figure 3 The illustration provided is an embodiment of the present invention. Figure 2 A schematic diagram of the structure after the canopy has been removed.

[0020] Figure 4 The illustration provided is an embodiment of the present invention. Figure 3 A schematic diagram of the structure after the steam curing shed has been removed.

[0021] Figure 5 The illustration provided is an embodiment of the present invention. Figure 4 Another side structural diagram.

[0022] Figure 6 The diagram shown is an enlarged view of the structure of the steam-pumping assembly and the steam-pushing assembly provided in an embodiment of the present invention.

[0023] Figure 7 The diagram shows the steam dynamics of the steam pushing process according to an embodiment of the present invention.

[0024] Figure 8 The diagram shows the structural fit between the injector, lower crossbeam, and thrust assembly according to an embodiment of the present invention.

[0025] Figure 9 The illustration provided is an embodiment of the present invention. Figure 8 Another side structural diagram.

[0026] Figure 10 The diagram shown illustrates the structural fit between the injector and the steam-pumping assembly according to an embodiment of the present invention.

[0027] Figure 11 The diagram shown is a structural schematic of a mating guide assembly provided in an embodiment of the present invention. Detailed Implementation

[0028] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. It should also be understood that the terminology used in the embodiments of the present invention is for describing specific implementation schemes and not for limiting the scope of protection of the present invention. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0029] Please see Figures 1 to 11 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness or purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0030] Please see Figures 1 to 3 This invention provides a mobile mold steam uniform flow guiding structure, comprising: a hoisting bracket 20 and multiple independent steam curing devices 10, wherein the hoisting bracket 20 splices and hoists the independent steam curing devices 10; each independent steam curing device 10 includes: a steam curing shed 1; a steam injection assembly 2, located inside the steam curing shed 1, extending through the top of the steam curing shed 1 and connected to the hoisting bracket 20; a pushing assembly 3, located below the steam injection assembly 2 and connected to the steam injection assembly 2 in a transmission manner; and a recovery assembly 4, one end of which... The top of the steam curing shed 1 is connected to the middle, and the other end of the recovery component 4 is connected to the steam injection component 2. After the steam injection component 2 is positioned at the preset steam injection height for the concrete, it moves along the length of the steam curing shed 1 to inject steam for steam curing. At the same time, the linkage push component 3 pushes the steam back and forth toward the concrete surface and pushes the steam to the middle of the steam curing shed 1. The recovery component 4 recovers the steam that gathers in the middle of the steam curing shed 1. The recovery component 4 continues to control the delivery of the recovered steam to the steam injection component 2 according to the temperature and humidity values ​​of the recovered steam.

[0031] In the steam curing process of cast-in-place concrete on mobile formwork or other outdoor open-air steam curing scenarios, a tower crane can be used to fix the structure to the hoisting bracket 20, thereby achieving automatic hoisting and curing of concrete using the uniform steam flow structure of this invention. Alternatively, the hoisting bracket 20 can be fixed to the surrounding supports of the concrete curing area, thus achieving closed-loop steam curing using the uniform steam flow structure of this invention. Furthermore, the uniform steam flow structure of this invention can be used not only for the steam curing of cast-in-place concrete but also for the pouring of outdoor precast concrete.

[0032] Specifically, during the steam curing process, multiple independent steam curing devices 10 can be hoisted and spliced ​​together using the hoisting bracket 20, thereby achieving a covered steam curing treatment of the concrete surface. The steam curing area can be freely selected according to the concrete surface, effectively ensuring steam curing treatment for concrete of different sizes and shapes. By using independent steam curing devices 10 for closed steam curing, the problem of increased energy consumption caused by the steam being exposed to the atmosphere after being discharged during outdoor steam curing can also be solved. In the independent steam curing device 10 of this invention, when steam is sprayed by the steam injection component 2 inside the steam curing shed 1, the steam can be moved along the length of the steam curing shed 1, thereby ensuring that the steam curing covers all areas of the concrete. To further ensure effective contact between steam and poured concrete, the steam injection component 2 moves in conjunction with the pusher component 3 to press the steam toward the concrete surface, enhancing the contact effect during steam curing. Additionally, while the pusher component 3 presses the steam, it also pushes it toward the recovery component 4 at the top of the curing shed 1. The recovery component 4 monitors the temperature and humidity of the steam. If both the humidity and temperature values ​​meet the requirements for continuous pressing, the recovered steam continues to be injected onto the concrete surface through the steam injection component 2 until the humidity and temperature values ​​no longer meet the requirements. At this point, the recovered steam is discharged and replaced with fresh steam. This continuous utilization of recovered steam effectively reduces the waste caused by the direct release of steam into the atmosphere during outdoor steam curing, which results in the unused heat and humidity of the steam being wasted during curing and significantly increases curing costs.

[0033] like Figure 2 and Figure 3As shown, the steam curing shed 1 includes: a shed support 11, the top of which is connected to both ends of the steam injection assembly 2; a guide top support 12, which is installed in the middle of the top of the shed support 11; a top plate 13, which is installed on the guide top support 12, and the top plate 13 has several discharge holes 131, which are connected to one end of the recovery assembly 4; and a shed cover 14, which covers the outside of the shed support 11 and the guide top support 12; wherein, the height of the shed cover 14 on one side of the top of the shed support 11 is lower than the height of the shed cover 14 corresponding to the guide top support 12, so that the shed cover 14 corresponding to the guide top support 12 is recessed upward to form a drainage cavity for the recovered steam.

[0034] During the steam curing process in the steam curing shed 1, since the surface to be steamed may be sloping, the shed cover 14 is supported by the shed support 11 and the guide top support 12, which effectively ensures the three-dimensional effect of the shed cover 14 and the reliability of the steam curing space. Moreover, through the guide top support 12 and the discharge holes 131 arranged on the guide top support 12, when the pusher component 3 pushes steam, the steam can be moved to the guide cavity at the guide top support 12, and then discharged into the recovery component 4 through the discharge holes 131. This allows the recovery component 4 to recover the steam and determine whether it can be reused, ensuring the continuous utilization effect of the steam injection component 2.

[0035] like Figures 4 to 6 and Figure 8 As shown, the steam injection assembly 2 includes: segmented beams 21, with slide rails 211 at the bottom of the segmented beams 21, and multiple segmented beams 21 connected end to end to form an upper crossbeam structure, with both ends of the upper crossbeam structure connected to the steam curing shed 1; segmented pipes 22, installed on the segmented beams 21, and connected end to end to form a steam transmission pipeline; steam injectors 23, with the tops of multiple steam injectors 23 slidably mounted on the slide rails 211, and the steam injectors 23 symmetrically arranged on both sides of the upper crossbeam structure, and the steam injectors 23 symmetrically arranged on each side connected by connecting brackets 24, and the steam injectors 23 communicating with the steam transmission pipeline; and a push drive 25, installed at the lower end of the upper crossbeam structure, with the power output end of the push drive 25 movably connected to the steam injector 23 closest to it; wherein, the push drive 25 drives the symmetrical steam injectors 23 on each side to move back and forth toward the center of the upper crossbeam structure, so that the steam from the steam injectors 23 is evenly sprayed onto the concrete along the way.

[0036] The assembly of the upper beam structure and steam pipeline can be achieved by splicing the end-to-end segments of the beams 21 and the pipes 22. The beams 21 and the corresponding pipes 22 can be connected by welding, which ensures that the thin-walled pipes 22 are axially reinforced and prevents deformation and breakage. Furthermore, the bottom slide 211 formed by the spliced ​​beams 21 allows for the sliding installation of the steam injector 23. Under the driving force of the push drive 25, the steam injector 23 can move back and forth along the slide 211 to perform mobile steam injection, ensuring that the steam can evenly cover all areas of the concrete during the steam curing process, thus guaranteeing the coverage and uniformity of the steam curing.

[0037] The segmented pipe 22 is provided with multiple steam outlets 221 along its axial direction. When not in use, some steam outlets 221 can be covered by sealing caps. When needed, the corresponding steam outlets 221 can be connected to the steam injectors 23. Of course, in order to improve the coverage effect of steam on concrete, the required number of steam injectors 23 can be added on the side corresponding to the push drive 25 and connected by the connecting bracket 24. Thus, multiple steam injection treatments can be performed simultaneously under the drive of the push drive 25.

[0038] Specifically, the steam injector 23 may further include: a steam injection support 231, the top of which is slidably disposed on a slide rail 211, and the power output end of the push drive 25 is movably connected to the steam injection support 231 of the steam injector 23 nearby; a lifting drive 232, which is mounted on the steam injection support 231; and a steam injection connector 233, which is mounted on the power output end of the lifting drive 232, and the steam inlet end of the steam injection connector 233 is connected to the steam outlet 221 through a steam delivery hose 234; and an infrared sensor, which is mounted on the bottom of the steam injection connector 233 to adjust the height of the steam injection connector 233 according to the height of the concrete by means of the lifting drive 232.

[0039] Before steam injection, the steam injector 23 can sense the concrete height in the corresponding area through an infrared sensor installed at the bottom of its steam injection joint 233. Based on the concrete height, the height of the corresponding steam injection joint 233 can be adjusted via the lifting drive 232 to prevent the steam injection height from affecting the contact between the steam and the concrete, thus impacting the steam curing effect. The lifting drive 25 can be a cylinder, a push rod motor, or other linear drive mechanisms.

[0040] Furthermore, the push drive 25 may further include: a push drive 251, which is installed at the lower end of the upper crossbeam structure; a traction rod 252, one end of which is connected to the power output end of the push drive 251; and a push rod 253, one end of which is rotatably connected to the traction rod 252, and the other end of which is connected to a rotating sleeve 254, so as to rotatably engage with the steam injection support 231 through the rotating sleeve 254. The push drive 251 can be a servo motor, or other rotary drive mechanisms. By driving the traction rod 252 to rotate through the push drive 251, and simultaneously driving the push rod 253 to pull the multiple steam injectors 23 connected to the connecting bracket 24 while injecting steam, the uniformity of the steam is improved. The rotating sleeve 254 may include a set of semi-circular sleeves connected to the push rod 253 and another set of detachable semi-circular sleeves. The two semi-circular sleeves can be fitted together to achieve the sleeve installation of the steam injection support 231, so as to ensure the convenience of disassembly and assembly.

[0041] Furthermore, an electric control valve 2341 can be installed at the connection between the steam hose 234 and the steam port 221 to control the opening and closing of the steam injection.

[0042] like Figures 3 to 6 As shown, the propulsion component 3 includes: a lower crossbeam 31, the upper end of which is connected to the steam injection component 2 via a vertical support 314; a steam patting component 32, which is connected to the steam injection component 2; and a steam pushing component 33, which is connected to the steam injection component 2 and is connected to the lower crossbeam 31 via a transmission connection. When the steam injection component 2 moves to inject steam, the linkage steam pushing component 33 is adjusted to an inclined state, pushing the steam injected by the steam injection component 2 toward the center of the steam curing shed 1 and converging it. At the same time, the steam patting component 32 continuously pats the steam injected along the steam injection path toward the concrete surface.

[0043] When the steam propulsion component 3 guides the ejected steam to ensure contact between the steam and the concrete, it can be adjusted to an inclined state via the lower crossbeam 31. This allows the steam to be concentrated and pushed towards the center of the curing shed 1, while also guiding the steam towards the concrete surface during its movement, increasing the contact between the steam and the concrete surface. Additionally, between the steam injectors 23 connected to the connecting bracket 24, such as... Figure 7 As shown, the steam pusher assembly 32 continuously pushes the steam pushed by the steam pusher assembly 33 and the newly sprayed steam from the steam spraying assembly 2 toward the concrete surface, thereby further guiding the steam toward the concrete surface, ensuring the contact effect of the concrete surface with the steam, greatly improving the steam curing effect, and solving the problem that the rising steam cannot fully contact the concrete surface in open-air environment or when simply spraying steam for steam curing, resulting in a significant increase in steam curing time and cost.

[0044] like Figure 6 , Figure 8 and Figure 9 As shown, the lower crossbeam 31 may further include: a crossbeam body 311, on which a guide groove 3111 is provided; a guide rack 312, which is slidably disposed in the guide groove 3111, with one bottom side of the guide rack 312 engaging with the steam propulsion assembly 33, and a first stop bar 3121 and a second stop bar 3122 respectively provided at both ends of the bottom of the guide rack 312 to control the switching of the tilt state of the steam propulsion assembly 33; and an elastic element 313, which is connected between one end of the guide rack 312 and the guide groove 3111.

[0045] During the linkage process of the lower crossbeam 31 with the steam propulsion assembly 33, the steam propulsion assembly 33 is in a horizontal state when it is near the first stop bar 3121. When the steam propulsion assembly 33 moves with the steam injection assembly 2, it will adjust to an inclined state under the linkage of the guide rack 312 until it reaches the second stop bar 3122. At this inclined state, it will continue to push the steam to contact the concrete surface and converge towards the center of the steam curing shed 1. The pushing effect of the steam propulsion assembly 33 as it moves towards the center of the steam curing shed 1 can be achieved by the elastic element 313, which can be a spring or other elastic energy storage component.

[0046] The steam propulsion assembly 33 may further include: a steam propulsion plate 331; an adjusting gear 332, the middle of which is connected to the top of the steam propulsion plate 331 via a connecting block 3321, and the adjusting gear 332 engaging with the guide rack 312; and a mounting support 333, one end of which is sleeved on the middle of the adjusting gear 332, and the other end of which is connected to the steam injection assembly 2. When the adjusting gear 332 is located at the first stop bar 3121, the steam propulsion plate 331 is in a horizontal state. As the adjusting gear 332 moves toward the center of the steam curing shed 1 under the transmission of the meshing with the guide rack 312, the steam propulsion plate 331 is adjusted to an inclined state. When it reaches the second stop bar 3122, it remains in an inclined state under the limit of the second stop bar 3122, so as to push the steam ejected by the steam injection assembly 2 toward the center of the steam curing shed 1.

[0047] In the steam propulsion assembly 33, when the steam injection assembly 2 moves, it moves the mounting support 333 along with the adjusting gear 332 and the steam propulsion plate 331. During its movement towards the center of the steam curing shed 1, driven by the meshing of the adjusting gear 332 and the guide rack 312, the adjusting gear 332 rotates, adjusting the steam propulsion plate 331 to an inclined state. Furthermore, with the second stop bar 3122 limiting the adjusting gear 332, the steam propulsion plate 331 remains inclined, thus pushing the steam downwards to the center of the steam curing shed 1.

[0048] As can be seen from the above, the steam injection assembly 2 includes multiple steam injectors 23 connected by a connecting bracket 24.

[0049] like Figure 10 As shown, the steam-beating assembly 32 may further include: a steam-beating drive 321, which is mounted in the middle of the connecting bracket 24; a first beater 322, the top center of which is movably sleeved on the power output end of the steam-beating drive 321, and a first guide joint 3221 on one side of the first beater 322; a second beater 323, the top side of which is hinged to the top side of the first beater 322, and a second guide joint 3231 on one side of the second beater 323; and a beater-closing guide assembly 324. The flapping guide assembly 324 moves and guides the first guide joint 3221 and the second guide joint 3231 so that the first flapping plate 322 and the second flapping plate 323 open to a preset angle and then flap downwards, and then the first flapping plate 322 and the second flapping plate 323 close upwards and return; wherein, the first flapping plate 322 is provided with a first limiting block 3222 for limiting the second flapping plate 323 after it opens to the preset angle, and the second flapping plate 323 is provided with a second limiting block 3232 for limiting the first flapping plate 322 after it opens to the preset angle.

[0050] As the steam-pressing assembly 32 continuously pushes the steam pushed by the steam-pushing assembly 33 and the newly sprayed steam from the steam-spraying assembly 2 toward the concrete surface, it can drive the first plate 322 and the second plate 323 to move downward through the steam-pressing drive 321. Under the guiding action of the pressing guide assembly 324 on the first guide joint 3221 on the first plate 322 and the second guide joint 3231 on the second plate 323, the first plate 322 and the second plate 323 open to a preset angle to fully press the steam toward the concrete surface. This ensures that during the steam-spraying assembly 2's movement and steam spraying process, the first plate 322 and the second plate 323 continuously push steam into contact with the moving concrete, thus ensuring the effective contact between the steam and the concrete. Furthermore, when the first and second beaters 322 and 323 reach their lowest points and return, they will converge and rise together under the guidance of the beater guide assembly 324. This prevents the newly ejected steam from the steam injection assembly 2 from being carried to the center of the curing shed 1 and recycled before it can descend and contact the concrete, thus avoiding ineffective steam injection. The beater drive 321 can be a cylinder, a push rod motor, or other linear drive mechanisms.

[0051] like Figure 10 and Figure 11As shown, the striking guide assembly 324 includes: a striking guide plate 3241, which is located on the same side of the first striking plate 322 and the second striking plate 323, and is connected to the striking air drive 321. The striking guide plate 3241 is provided with a first guide rail 32411 corresponding to the first guide joint 3221 and a second guide rail 32412 corresponding to the second guide joint 3231; and an upper limiting block 3242, which is elastically inserted into the top of the first guide rail 32411 and the top of the second guide rail 32412, respectively. The first guide joint 3221 is elastically inserted into the bottom end of the first guide rail 32411 and the second guide rail 32412 to restrict the backward movement of the first guide joint 3221 after it passes the top end of the first guide rail 32411 and the second guide joint 3231 after it passes the top end of the second guide rail 32412; and the lower limiting block 3243 is elastically inserted into the bottom end of the first guide rail 32411 and the bottom end of the second guide rail 32412 to restrict the backward movement of the first guide joint 3221 after it passes the bottom end of the first guide rail 32411 and the second guide joint 3231 after it passes the bottom end of the second guide rail 32412.

[0052] When the flapping guide assembly 324 guides the opening and closing of the first flapping plate 322 and the second flapping plate 323, the first guide joint 3221 is inserted into the first guide rail 32411 and the second guide joint 3231 is inserted into the second guide rail 32412. This allows the first and second flapping plates 322 and 323 to open a preset angle and move downwards to puff steam when the first guide joint 3221 and the second guide joint 3231 move to the guide rail side before passing the lower limiting block 3243. After passing the lower limiting block 3243, due to the restriction of the lower limiting block 3243, the first guide joint 3221 and the second guide joint 3231 will move to the other guide rail side, so that the first and second flapping plates 322 and 323 continue to close and move upwards to avoid restricting the downward movement of the newly sprayed steam from the steam injection assembly 2, until they pass the upper limiting block 3242, and so on.

[0053] Specifically, when the upper limiting block 3242 and the lower limiting block 3243 are inserted into the inner side of the guide rail, they can be connected to the inner wall of the guide rail via springs. Furthermore, the top side of the upper limiting block 3242 is parallel to the guiding direction of the corresponding guide rail side before the upper limiting block 3242, and the bottom side of the lower limiting block 3243 is parallel to the guiding direction of the corresponding guide rail side before the lower limiting block 3243, to ensure the limiting effect of the upper limiting block 3242 and the lower limiting block 3243 on the first guide joint 3221 and the second guide joint 3231.

[0054] like Figure 2 and Figure 3As shown, the recovery assembly 4 includes: a recovery pipe 41, one end of which is connected to the middle of the top of the steam curing shed 1; a control valve 42, the other end of which is connected to the control valve 42, which has an exhaust port 421, an inlet port 422, and a delivery port 423, the delivery port 423 being connected to the steam injection assembly 2; a temperature sensor and a humidity sensor, which are located inside the recovery pipe 41 to obtain the temperature and humidity values ​​of the recovered steam; and a controller, located inside the control valve 42, used to determine whether the temperature and humidity values ​​meet one of the following conditions: the temperature value exceeds a temperature threshold; the humidity value exceeds a humidity threshold; if so, the steam delivery port 423 is controlled to input steam into the steam injection assembly 2, and the control valve 42 discharges the recovery pipe 41 from the exhaust port 421; if not, the control valve 42 is controlled to input the recovered steam from the recovery pipe 41 into the steam injection assembly 2, and the delivery port 423 is controlled to be closed.

[0055] During the steam recovery process, positive pressure steam from the top center of the steam curing shed 1 can be received through the recovery pipe 41. The temperature and humidity values ​​of the recovered steam are measured by temperature and humidity sensors. The controller analyzes the temperature and humidity values. If the temperature or humidity value exceeds the temperature threshold or humidity threshold, it indicates that the current recovered steam is ineffective and can be directly discharged to the outside. Therefore, the steam can be input to the steam injection assembly 2 through the steam outlet 423, and the control valve 42 discharges the recovered steam from the exhaust port 421 through the recovery pipe 41. If both the temperature and humidity values ​​exceed the temperature threshold and humidity threshold, it indicates that the current recovered steam still meets the usage requirements. The control valve 42 can be controlled to input the recovered steam from the recovery pipe 41 to the steam injection assembly 2, and the steam outlet 423 can be closed to ensure the recycling of steam resources and achieve the goal of saving energy during outdoor steam curing.

[0056] In summary, the mobile mold steam curing uniform steam guiding structure disclosed in this invention utilizes a hoisting bracket 20 to hoist and splice together multiple independent steam curing devices 10, thereby achieving a comprehensive steam curing treatment of the concrete surface. The steam curing area can be freely selected according to the concrete surface, effectively ensuring steam curing treatment for concrete of different sizes and shapes. By using independent steam curing devices 10 for closed steam curing, it also solves the problem of outdoor open-air steam curing where the steam's contact with the atmosphere after discharge affects the continuous curing effect, leading to increased energy consumption. In the independent steam curing device 10 of this invention, the steam spraying component 2 inside the steam curing shed 1 can also move along the length of the steam curing shed 1 during steam spraying, thereby ensuring that the steam covers all areas of the concrete during steam curing. To further ensure effective contact between steam and poured concrete, the steam injection component 2 moves in conjunction with the pusher component 3 to press the steam towards the concrete surface, enhancing the contact effect during steam curing. Additionally, while the pusher component 3 presses the steam, it also pushes it towards the recovery component 4 at the top of the curing shed 1. The recovery component 4 monitors the temperature and humidity of the steam. If both the humidity and temperature values ​​meet the requirements for continuous pressing, the recovered steam continues to be injected into the concrete surface through the steam injection component 2 until the humidity and temperature values ​​no longer meet the requirements. At this point, the recovered steam is discharged and replaced with fresh steam. This continuous utilization of recovered steam effectively reduces the waste caused by direct steam release into the atmosphere during outdoor steam curing, which results in the unused heat and humidity of the steam being wasted and significantly increases curing costs. Therefore, this invention effectively overcomes the shortcomings of existing technologies and has high industrial application value.

[0057] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A structure for uniformly guiding steam during steam curing on a movable mold frame, characterized in that, include: The hoisting bracket (20) and multiple independent steam curing devices (10) are connected and hoisted together; The independent steam curing device (10) includes: Steam curing shed (1); Steam injection assembly (2), the steam injection assembly (2) is located inside the steam curing shed (1), the steam injection assembly (2) extends out of the top of the steam curing shed (1) and is connected to the hoisting bracket (20); A guiding component (3), wherein the guiding component (3) is disposed below the injection component (2) and is drively connected to the injection component (2); and The recycling component (4) has one end connected to the middle of the top of the steam curing shed (1) and the other end connected to the steam injection component (2). The steam injection component (2) is positioned at the preset steam injection height for the concrete and moves along the length of the steam curing shed (1) to inject steam for steam curing. At the same time, the push component (3) pushes the steam back and forth toward the concrete surface and pushes the steam to the middle of the steam curing shed (1). The recovery component (4) recovers the steam that gathers in the middle of the steam curing shed (1). The recovery component (4) continues to control the delivery of the recovered steam to the steam injection component (2) according to the temperature and humidity values ​​of the recovered steam.

2. The mobile mold frame steam uniform flow guiding structure according to claim 1, characterized in that, The steam curing shed (1) includes: A canopy support (11), the top of which is connected to both ends of the steam injection assembly (2); A top guide bracket (12) is installed at the top center of the canopy bracket (11); A top plate (13) is mounted on the guide top support (12), and the top plate (13) has a plurality of discharge holes (131) connected to one end of the recovery assembly (4); and Canopy (14), which covers the outside of the canopy support (11) and the flow guide top support (12); Wherein, the height of the canopy (14) on one side of the top of the canopy support (11) is lower than the height of the canopy (14) corresponding to the top support (12), so that the canopy (14) corresponding to the top support (12) is recessed upward to form a drainage cavity for the recovered steam.

3. The mobile mold frame steam uniform flow guiding structure according to claim 1, characterized in that, The steam injection assembly (2) includes: Segmented beams (21), the bottom of which is provided with slide rails (211), and multiple segmented beams (21) are connected end to end to form an upper crossbeam structure. The two ends of the upper crossbeam structure are respectively connected to the steam curing shed (1). Segmented pipes (22) are installed on segmented beams (21) and the segments (22) are connected end to end to form a steam pipeline; Steam injectors (23), the tops of a plurality of steam injectors (23) are slidably disposed on the slide rail (211), the steam injectors (23) are symmetrically arranged on both sides of the upper crossbeam structure, the steam injectors (23) symmetrically arranged on each side are connected by connecting brackets (24), and the steam injectors (23) are connected to the steam transmission pipeline; and Push drive (25), the push drive (25) is installed at the lower end of the upper crossbeam structure, and the power output end of the push drive (25) is movably connected to the injector (23) near it; The push drive (25) drives the steam injectors (23) on each side to move back and forth toward the middle of the upper beam structure so that the steam of the steam injectors (23) is evenly sprayed onto the concrete along the way.

4. The mobile mold frame steam uniform flow guiding structure according to claim 3, characterized in that, The segmented pipe (22) is provided with multiple steam outlets (221) along its axial direction; The injector (23) includes: The top of the injection support (231) is slidably disposed on the slide rail (211), and the power output end of the push drive (25) is movably connected to the injection support (231) of the injector (23) near it. A lifting drive (232) is mounted on the steam injection support (231); and A steam injection connector (233) is installed at the power output end of the lifting drive (232), and the steam inlet end of the steam injection connector (233) is connected to the steam outlet (221) through a steam delivery hose (234); An infrared sensor is installed at the bottom of the steam injection joint (233) to adjust the height of the steam injection joint (233) according to the height of the concrete via the lifting drive (232).

5. The mobile mold frame steam uniform flow guiding structure according to claim 1, characterized in that, The derivation component (3) includes: The lower crossbeam (31) is connected to the steam injection assembly (2) via a vertical bracket (314) at its upper end. Steam injection assembly (32), which is connected to the steam injection assembly (2); and The steam propulsion assembly (33) is connected to the steam injection assembly (2), and the steam propulsion assembly (33) is connected to the lower crossbeam (31) via a transmission connection. When the steam injection assembly (2) moves to inject steam, it is linked to the steam pushing assembly (33) to be adjusted to an inclined state, so that the steam injected by the steam injection assembly (2) is pushed and converged towards the center of the steam curing shed (1). At the same time, the steam patting assembly (32) continuously pats the steam injected along the steam injection path onto the concrete surface.

6. The mobile mold frame steam uniform flow guiding structure according to claim 5, characterized in that, The lower crossbeam (31) includes: A crossbeam body (311) is provided with a guide groove (3111). A guide rack (312) is slidably disposed within the guide groove (3111). One bottom side of the guide rack (312) engages with the steam propulsion assembly (33). A first stop bar (3121) and a second stop bar (3122) are respectively provided at both ends of the bottom of the guide rack (312) to control the switching of the tilt state of the steam propulsion assembly (33); and An elastic element (313) is connected between one end of the guide rack (312) and the guide groove (3111).

7. The movable mold frame steam uniform flow guiding structure according to claim 6, characterized in that, The propulsion assembly (33) includes: push steam board(331); An adjusting gear (332) is connected at its center to the top center of the push plate (331) via a connecting block (3321). The adjusting gear (332) engages with the guide rack (312) in a transmission manner. Mounting support (333), one end of which is sleeved on the middle of the adjusting gear (332), and the other end of which is connected to the steam injection assembly (2); When the adjusting gear (332) is located at the first stop bar (3121), the steam pusher plate (331) is in a horizontal state. During the process of the adjusting gear (332) moving towards the middle of the steam curing shed (1) under the meshing transmission with the guide rack (312), the steam pusher plate (331) is adjusted to an inclined state. When it reaches the second stop bar (3122), the inclined state is maintained under the limit of the second stop bar (3122) so as to push the steam sprayed by the steam injection assembly (2) towards the middle of the steam curing shed (1) and converge.

8. The mobile mold frame steam uniform flow guiding structure according to claim 5, characterized in that, The steam injection assembly (2) includes a plurality of steam injectors (23) connected by a connecting bracket (24); The air-purifying assembly (32) includes: A pneumatic drive (321) is installed in the middle of the connecting bracket (24); The first clapper (322) is movably sleeved at the top center of the first clapper (322) to the power output end of the clapper drive (321), and a first guide joint (3221) is provided on one side of the first clapper (322). A second striking plate (323) is hinged to the top side of the first striking plate (322) on one side, and a second guide joint (3231) is provided on one side of the second striking plate (323); and The snapping guide assembly (324) moves and guides the first guide joint (3221) and the second guide joint (3231) so that the first tapping plate (322) and the second tapping plate (323) open a preset angle and tap downwards, and then the first tapping plate (322) and the second tapping plate (323) close upwards and return. The first clapper (322) is provided with a first limiting block (3222) for limiting the second clapper (323) after it opens to the preset angle, and the second clapper (323) is provided with a second limiting block (3232) for limiting the first clapper (322) after it opens to the preset angle.

9. The mobile mold frame steam uniform flow guiding structure according to claim 8, characterized in that, The timing guide assembly (324) includes: A snap-fit ​​guide plate (3241) is provided on the same side of the first snap plate (322) and the second snap plate (323). The snap-fit ​​guide plate (3241) is connected to the snap-fit ​​drive (321). The snap-fit ​​guide plate (3241) is provided with a first guide rail (32411) corresponding to the first guide joint (3221) and a second guide rail (32412) corresponding to the second guide joint (3231). Upper limiting blocks (3242) are elastically inserted into the top ends of the first guide rail (32411) and the second guide rail (32412) respectively, to restrict the backward movement of the first guide joint (3221) after it passes the top end of the first guide rail (32411) and to restrict the backward movement of the second guide joint (3231) after it passes the top end of the second guide rail (32412); and The lower limiting block (3243) is elastically inserted into the bottom end of the first guide rail (32411) and the bottom end of the second guide rail (32412) to restrict the backward movement of the first guide joint (3221) after it passes the bottom end of the first guide rail (32411) and to restrict the backward movement of the second guide joint (3231) after it passes the bottom end of the second guide rail (32412).

10. The mobile mold frame steam uniform flow guiding structure according to claim 1, characterized in that, The recycling component (4) includes: A recycling pipe (41) is provided, one end of which is connected to the middle of the top of the steam curing shed (1). The control valve (42) is connected to the other end of the recovery pipe (41). The control valve (42) is provided with an exhaust port (421), an inlet port (422) and a delivery port (423). The delivery port (423) is connected to the injection assembly (2). A temperature sensor and a humidity sensor are disposed inside the recovery pipe (41) to obtain the temperature value and the humidity value of the recovered steam; and A controller, located within the control valve (42), is used to determine whether the temperature value and the humidity value meet one of the following conditions: The temperature value exceeds the temperature threshold; The humidity value exceeds the humidity threshold; If so, the steam inlet (423) is controlled to input steam into the steam injection assembly (2), while the control valve (42) discharges the recovery pipe (41) from the exhaust port (421); If not, control the control valve (42) to input the recovered steam from the recovery pipe (41) to the steam injection assembly (2), and control the closure of the steam inlet (423).

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