Expansion joint filling concrete steam curing device

Abstract

According to the expansion joint filled concrete steam curing device, a traditional metal frame structure is replaced with an air rib type membrane structure, the situation that an existing steam curing device is strenuous to assemble and transport is changed, the integrated air rib type membrane structure is stable after being inflated with high pressure, and the expansion joint filled concrete steam curing device is convenient to use. The utility model relates to an arch rib for concrete steam curing, which further avoids steam leakage caused by the problem of unstable structure during steam curing, belongs to the technical field of concrete steam curing, comprises an arch rib, and is characterized in that the arch rib consists of a plurality of inflatable airbags, and every two inflatable airbags are communicated through a connecting air pipe; the plurality of inflatable airbags are communicated to form a semi-closed steam-curing space, and the steam-curing space is positioned in the arch rib; the arch rib is provided with a water storage ballasting bin in the length direction, and the water storage ballasting bin is arranged outside the arch rib; a steam conveying device is arranged at the top of the steam-curing space; thermal insulation tarpaulin is erected on the tops of the arch ribs; the head inflatable airbag and the tail inflatable airbag are provided with heat preservation door curtains respectively.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete steam curing, and in particular relates to a steam curing device for concrete filled with expansion joints. Background Art

[0002] During the construction of the bridge, in order to avoid the impact of the low temperature and dry environment on the strength of the concrete and to prevent the possible cracking of the concrete during solidification, a steam curing device is selected to humidify and heat the concrete so that the concrete can complete solidification in a higher temperature environment and prevent dehydration of the concrete.

[0003] Existing steam curing sheds are mostly constructed with pipes, which are time-consuming and labor-intensive to construct and require a large amount of manual assembly. The frames lack mutual support after construction, resulting in poor overall structural stability. After folding or stowing, the weight also causes a lot of transportation costs.

[0004] The air-ribbed membrane structure is an inflatable membrane structure that uses high-pressure air ribs as a support system. It creates a usable space by connecting multiple air ribs into a whole. It has the advantages of being lightweight and portable, quickly transportable, low energy consumption, safe and reliable. Utility Model Content

[0005] The purpose of the utility model is to provide a steam curing device for concrete filling expansion joints. By adopting an air-ribbed membrane structure to replace the traditional metal structure, the previous situation of difficult assembly and transportation of steam curing devices is changed, and a large amount of labor can be saved. The integrated air-ribbed membrane structure is stable after being inflated with high pressure, further avoiding steam leakage caused by structural instability during steam curing.

[0006] To achieve the above-mentioned purpose, the utility model provides a steam curing device for concrete filling an expansion joint, comprising an arch rib, wherein the arch rib is composed of a plurality of inflatable air bags, and two adjacent inflatable air bags are connected by a connecting air pipe;

[0007] The plurality of inflatable air bags are connected to form a semi-enclosed steaming space, and the steaming space is located inside the arch rib;

[0008] A steam delivery pipe is provided in the steaming space;

[0009] A thermal insulation tarpaulin is placed on the top of the arch rib;

[0010] Water storage and pressure-reinforced compartments are fixedly provided at both ends of the thermal insulation tarpaulin;

[0011] The first and the last two inflatable air bags are respectively provided with heat-insulating door curtains matched therewith.

[0012] Furthermore, the inflatable airbags are in the shape of an arched cylinder and are arranged at equal intervals along the length direction;

[0013] The connecting air pipes are located on both sides of the top end of the arch rib and are arranged opposite to each other.

[0014] Furthermore, the steam delivery pipe is arranged at the center of the top of the steaming space through a hook, and the length of the steam delivery pipe is the same as the length of the arch rib;

[0015] The steam delivery pipe is provided with a plurality of exhaust holes at equal intervals.

[0016] Furthermore, a plurality of fixing rings are provided downwardly from the top end of the inner portion of the arch rib, and the fixing rings are arranged at equal intervals;

[0017] The fixing ring matches the hook, and the hook is fixedly arranged on the top end of the steam delivery pipe.

[0018] Furthermore, the thermal insulation tarpaulin is provided with thorn-surface Velcro at equal intervals, and the thorn-surface Velcro is provided at the center of the thermal insulation tarpaulin along the length direction. The top of the arch rib is provided with a fleece-surface Velcro that matches the thorn-surface Velcro, and the thermal insulation tarpaulin is connected to the top of the arch rib via the thorn-surface Velcro.

[0019] The thorn-surface Velcro is located on the side of the thermal insulation tarpaulin that contacts the arch rib.

[0020] Furthermore, the length of the thermal insulation tarpaulin is the same as the length of the water storage and pressure storage chamber;

[0021] The upper end surface of the water storage and pressure-reducing chamber is provided with a water injection hole, and the bottom of the side wall is provided with a water discharge hole.

[0022] Furthermore, a surface of the thermal insulation door curtain in contact with the inflatable airbag is provided with a plurality of thorn-surface Velcro at equal intervals, and a fleece-surface Velcro matching the thorn-surface Velcro is provided on the inflatable airbag, and the thermal insulation door curtain is connected to the inflatable airbag via the thorn-surface Velcro;

[0023] A steam pipe hole is provided on the thermal insulation door curtain, and the steam delivery pipe passes through the steam pipe hole and is connected to the steam curing machine.

[0024] Compared with existing equipment, this utility model has the following benefits:

[0025] 1. Compared with the traditional metal frame structure steam curing shed, this utility model has a lighter structure: airbag. At the same time, the structure itself is simple and easy to build, and it only needs to be placed and inflated.

[0026] 2. Compared with most existing air-ribbed membrane structures, the present invention only uses air bags as arch ribs, which can effectively avoid a major drawback of air-ribbed membrane structures, the span problem, and greatly reduce the air resistance after inflation, thereby increasing structural stability.

[0027] 3. During transportation, the utility model can be folded and stored due to the material problem, which reduces the space occupied and also reduces its own weight to a minimum.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the utility model.

[0030] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0031] Figure 3 It is a left side view schematic diagram of the utility model.

[0032] Figure 4 It is a schematic diagram of the structure of thermal insulation tarpaulin.

[0033] Figure 5 It is a schematic diagram of the use of the utility model.

[0034] Explanation of the accompanying reference numerals: 1. Arch rib; 11. Inflatable airbag; 12. Steaming space; 13. Connecting air pipe; 2. Water storage and pressure chamber; 21. Water injection hole; 22. Water discharge hole; 3. Steam delivery pipe; 31. Exhaust hole; 4. Thermal insulation tarpaulin; 5. Thermal insulation door curtain; 51. Steam pipe hole; 6. Fixing ring; 7. Hook; 8. Thorn-surface Velcro; 9. Fleece-surface Velcro. DETAILED DESCRIPTION

[0035] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods, structural features and effects of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0036] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "aligned", "overlap", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; and in the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0039] Example 1

[0040] This embodiment provides Figures 1 to 5 The steam curing device for concrete filling an expansion joint shown in the figure comprises an arch rib 1, a plurality of inflatable air bags 11 arranged at equal intervals along the length direction, and two adjacent inflatable air bags 11 are connected by connecting air pipes 13, forming the basic structure of the steam curing device: the arch rib 1;

[0041] Multiple inflatable airbags 11 are connected to form a semi-enclosed steam curing space 12. The steam curing space 12 is actually the internal space of the arch rib 1. The steam curing space 12 is specifically required to cover the bridge expansion joint and the concrete poured on both sides to ensure the reliability of the concrete after solidification.

[0042] A steam delivery pipe 3 is provided inside the steam curing space 12. The steam delivery pipe 3 serves as a transmission pipe for delivering the hot steam generated by the steam curing machine into the steam curing space 12.

[0043] A thermal insulation tarpaulin 4 is set on the top of the arch rib 1, and the first and rear inflatable air bags 11 are respectively provided with a matching thermal insulation curtain 5. The thermal insulation tarpaulin 4 and the thermal insulation curtain 5 ultimately make the steam curing space 12 a closed space, and further ensure that the steam in the steam curing space 12 does not overflow. At the same time, the thermal insulation tarpaulin 4 and the thermal insulation curtain 5 also play the role of heat insulation and moisture insulation, which can maximize the thermal insulation effect and work together with the steam curing machine to maintain the humidity and temperature standards in the steam curing space 12.

[0044] Water storage and pressure-reducing chambers 2 are fixedly provided at both ends of the thermal insulation tarpaulin 4. The water storage and pressure-reducing chambers 2 are also of an airbag structure, with a cavity formed inside for storing water. The water storage and pressure-reducing chambers 2 are used to ensure that the entire steam curing device will not move after it is inflated and laid out, and to enable the thermal insulation tarpaulin 4 to be close to the arch rib 1, ensuring that the hot steam inside the steam curing space 12 will not overflow and cause waste of resources, and to avoid the loss of hot steam and affecting the steam curing environment of the internal concrete.

[0045] Furthermore, the inflatable airbags 11 are in the shape of an arched cylinder and are arranged at equal intervals along the length direction;

[0046] The connecting air tube 13 runs through the inflatable air bag 11 at the head end to the inflatable air bag 11 at the tail end, connecting all the inflatable air bags 11 to form a whole: the arch rib 1, the connecting air tube 13 is specifically located on both sides of the top of the arch rib 1 and is symmetrically arranged. After being filled with gas, the connecting air tube 13 can also support the inflatable air bag 11 in the length direction, making the overall structure of the arch rib 1 more stable;

[0047] At the same time, the connecting air pipes 13 arranged on both sides of the top also play a supporting role in the subsequent laying of the thermal insulation tarpaulin 4, making it more convenient to lay the thermal insulation tarpaulin 4 and allowing the thermal insulation tarpaulin 4 to be closer to the entire arch rib 1.

[0048] Furthermore, the steam delivery pipe 3 is provided at the center of the top of the steaming space 12 via a hook 7 to ensure that steam can be distributed from the center of the steaming space 12 to the entire space. The length of the steam delivery pipe 3 is the same as the length of the arch rib 1, so that hot steam can be evenly distributed from the beginning to the end of the steaming space 12.

[0049] The hot steam is discharged from a plurality of exhaust holes 31 equidistantly provided on the steam delivery pipe 3, further ensuring that every part of the steam curing space 12 has the same humidity and heat, thereby further ensuring the reliability of concrete setting.

[0050] Specifically, a plurality of fixing rings 6 are set downward from the top of the inside of the arch rib 1, and the fixing rings 6 are arranged at equal intervals. A hook 7 matching the fixing ring 6 is fixed at the top of the steam conveying pipe 3. When the steam curing shed is inflated, the construction workers only need to hold the hook 7 and pass it through the fixing ring 6 to complete the installation of the steam conveying pipe 3. The quick installation method greatly reduces the workload of the construction workers and further optimizes the complexity of building the steam oxidation shed.

[0051] Furthermore, as shown in the figure, a plurality of thorn-surface Velcro strips 8 are provided on the thermal insulation tarpaulin 4 at equal intervals. The thorn-surface Velcro strips 8 are provided at the center of the thermal insulation tarpaulin 4 along the length direction so that the center of the thermal insulation tarpaulin 4 is just aligned with the apex of the arch rib 1, and a fleece-surface Velcro strip 9 that matches the thorn-surface Velcro strips 8 is provided at the top of the arch rib 1. The thorn-surface Velcro strips 8 and the fleece-surface Velcro strips 9 are bonded so that the center of the thermal insulation tarpaulin 4 can be closely attached to the top of the arch rib 1.

[0052] The thorn-surface Velcro 8 is located on the side of the thermal insulation tarpaulin 4 that contacts the arch rib 1 , that is, the inner end surface of the thermal insulation tarpaulin 4 , and is used to make the entire thermal insulation tarpaulin 4 closer to the arch rib 1 .

[0053] Furthermore, the length of the insulation tarpaulin 4 is the same as that of the water storage and pressure weight bin 2, and one side of the water storage and pressure weight bin 2 is also in close contact with the insulation tarpaulin 4. The two water storage and pressure weight bins 2 and the insulation tarpaulin 4 form a whole. After the insulation tarpaulin 4 is fixed at the center position, the two ends naturally droop and stick to the two ends of the arch rib 1. The water storage and pressure weight bins 2 are arranged on both sides of the insulation tarpaulin 4, and the same length can ensure that after the insulation tarpaulin 4 is erected, each part of the bottom end can receive a stable pulling force without generating a gap between it and the arch rib 1 or the ground, thereby ensuring the integrity of the steaming space 12.

[0054] At the same time, the two water-storage pressure-weighted chambers 2 play a crucial role in the stability of the entire steam curing shed. The water-filled water-storage pressure-weighted chambers 2 can eventually effectively compress the two ends of the arch rib 1, thereby ensuring the structural stability of the entire steam curing shed. To ensure that the steam curing shed does not move due to external factors, the length of the water-storage pressure-weighted chambers 2 is actually the same as the length of the entire arch rib 1, further ensuring that every part of the arch rib 1 can receive reliable compression force, so that the steam curing shed can be closely attached to the bridge deck.

[0055] A water injection hole 21 is provided on the upper end surface of the water storage and pressure weight bin 2, and a water discharge hole 22 is provided at the bottom of the side wall. The water injection hole 21 is used to inject water and increase the weight of the water storage and pressure weight bin 2 after the steam curing shed is inflated and propped up. The water discharge hole 22 is used to discharge the water in the water storage and pressure weight bin 2 after the steam curing is completed. Being provided at the bottom can further ensure that the water can be drained smoothly. After being filled with water or drained, the water injection hole 21 and the water discharge hole 22 are both sealed with a plug.

[0056] Furthermore, a plurality of thorn-surface Velcros 8 are equidistantly provided on one side of the thermal insulation door curtain 5 in contact with the inflatable airbag 11, and a fleece-surface Velcro 9 matching the thorn-surface Velcro 8 is provided on the inflatable airbag 11. The thermal insulation door curtain 5 is connected to the inflatable airbag 11 via the thorn-surface Velcro 8, and the thermal insulation door curtain 5 is also connected to the arch rib 1 using Velcro. Specifically, fleece-surface Velcro 9 is provided on the outer end surfaces of the first and rear inflatable airbags 11, and thorn-surface Velcro 8 is provided at the corresponding position of the thermal insulation door curtain 5, so that the thermal insulation door curtain 5 can be tightly attached to the entire arch rib 1 as a whole, forming a finally closed steaming space 12. The thermal insulation door curtain 5 and the thermal insulation tarpaulin 4 ultimately ensure the internal wet and hot environment of the steaming space 12 to meet the technical standards for concrete steaming and avoid subsequent concrete cracking and the like.

[0057] Compared with traditional lashing, the use of Velcro can save construction workers' labor. Before the arch rib 1 is inflated, the two top Velcros are attached first. After inflation, there is no need to use climbing equipment to tie them one by one. It is only necessary to stick them to the corresponding Velcro one by one. At the same time, problematic Velcro can be quickly discovered and replaced more quickly, which not only facilitates the subsequent maintenance of the entire steam curing shed, but also extends its service life.

[0058] One of the two thermal insulation curtains 5 is provided with a steam pipe hole 51. After the entire steam curing shed is built, the steam delivery pipe 3 is connected to the steam curing machine through the steam pipe hole 51 opened on the thermal insulation curtain 5 to deliver the hot steam generated by the steam curing machine to the steam curing space 12.

[0059] When in use: before inflation, the arch rib 1 must be unfolded first, and the inflatable airbags 11 must be unfolded from the head end to the tail end and pulled apart in sequence, and then the thorn-faced Velcro 8 on the inner end surface of the thermal insulation tarpaulin 4 must be adhered to the fleece-faced Velcro 9 on the top of the arch rib 1 in sequence;

[0060] After completion, the arch rib 1 is connected to the inflation device and inflated until the arch rib 1 is fully erected. During this process, the construction workers only need to assist in pulling open the thermal insulation tarpaulin 4 so that the thermal insulation tarpaulin 4 and the water storage and pressure weight bins 2 at both ends of the thermal insulation tarpaulin 4 can naturally hang down after the arch rib 1 is erected. After the arch rib 1 is erected, water is injected into the cavity through the water injection holes 21 of the water storage and pressure weight bins 2 until the cavity is filled, and the erection of the thermal insulation tarpaulin 4 is completed.

[0061] Then, the steam delivery pipe 3 can be hung on the fixing ring 6 inside the arch rib 1 through the hook 7. After the steam curing space 12 is set up, the heat-insulating door curtain 5 is sequentially adhered to the fleece-surfaced Velcro 9 of the arch rib 1 through the thorn-surfaced Velcro 8, thus completing the setting up of the entire steam curing shed. When in use, the end of the steam delivery pipe 3 connected to the steam curing machine is passed through the steam pipe hole 51 on the heat-insulating door curtain 5 and connected to the steam curing machine, thus starting the steam curing operation. During use, hot steam is evenly distributed to the steam curing space 12 through the steam pipe holes 51 equidistantly opened on the steam delivery pipe 3.

[0062] After the maintenance is completed, the water in the water storage and pressure bin 2 is drained first, and then the two thermal insulation curtains 5 are torn open in turn. After that, the gas in the arch rib 1 is discharged, and the thermal insulation tarpaulin 4 is also torn open and put away. The arch rib 1 can be folded and stored. This structure greatly optimizes the tedious steps of setting up and dismantling the steam curing shed. It can be folded and stored quickly, and after the arch rib 1 is inflated, each inflatable airbag 11 provides reliable support to each other, making the entire steam curing shed more stable and reliable.

[0063] It should be noted that the utility model can produce steam curing devices of different lengths and indicators according to the usage scenarios to adapt to different bridge deck widths. That is, the entire steam curing device is a whole when it is completed, and steam curing devices of corresponding sizes can be used when constructing expansion joints of bridges of different widths.

[0064] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A steam curing device for concrete filled with an expansion joint, comprising an arch rib (1), characterized in that: The arch rib (1) is composed of a plurality of inflatable air bags (11), and two adjacent inflatable air bags (11) are connected via a connecting air pipe (13); A plurality of the inflatable air bags (11) are connected to form a semi-enclosed steaming space (12); A steam delivery pipe (3) is provided in the steaming space (12); A heat-insulating tarpaulin (4) is provided on the top of the arch rib (1); Water storage and pressure-reinforced storage bins (2) are fixedly provided at both ends of the thermal insulation tarpaulin (4); The first and last two inflatable air bags (11) are respectively provided with heat-insulating door curtains (5) matched therewith.

2. The steam curing device for concrete filled with expansion joints according to claim 1, characterized in that: The inflatable airbags (11) are in an arched cylindrical shape and are arranged at equal intervals along the length direction; The connecting air pipes (13) are located on both sides of the top end of the arch rib (1) and are arranged opposite to each other.

3. The steam curing device for concrete filled with expansion joints according to claim 2, characterized in that: The steam delivery pipe (3) is arranged at the center of the top of the steam curing space (12) through a hook (7), and the length of the steam delivery pipe (3) is the same as the length of the arch rib (1); The steam delivery pipe (3) is provided with a plurality of exhaust holes (31) at equal intervals.

4. The steam curing device for concrete filled with expansion joints according to claim 3, characterized in that: A plurality of fixing rings (6) are arranged downwardly at the top end of the interior of the arch rib (1), and the fixing rings (6) are arranged at equal intervals; The fixing ring (6) matches the hook (7), and the hook (7) is fixedly arranged on the top end of the steam delivery pipe (3).

5. The steam curing device for concrete filled with expansion joints according to claim 4, characterized in that: The thermal insulation tarpaulin (4) is provided with thorn-surface Velcro (8) at equal intervals, and the thorn-surface Velcro (8) is provided at the center of the thermal insulation tarpaulin (4) along the length direction, and the top of the arch rib (1) is provided with a fleece-surface Velcro (9) that matches the thorn-surface Velcro (8), and the thermal insulation tarpaulin (4) is connected to the top of the arch rib (1) via the thorn-surface Velcro (8); The thorn-surface Velcro (8) is located on the side of the thermal insulation tarpaulin (4) that contacts the arch rib (1).

6. The steam curing device for concrete filled with expansion joints according to claim 5, characterized in that: The length of the thermal insulation tarpaulin (4) is the same as the length of the water storage and pressure storage chamber (2); The upper end surface of the water storage and pressure-reducing chamber (2) is provided with a water injection hole (21), and the bottom of the side wall is provided with a water discharge hole (22).

7. The steam curing device for concrete filled with expansion joints according to claim 1, characterized in that: A plurality of thorn-surface Velcro (8) are equidistantly provided on the side of the thermal insulation door curtain (5) that contacts the inflatable airbag (11); a fleece-surface Velcro (9) that matches the thorn-surface Velcro (8) is provided on the inflatable airbag (11); and the thermal insulation door curtain (5) is connected to the inflatable airbag (11) via the thorn-surface Velcro (8); The heat-insulating door curtain (5) is provided with a steam pipe hole (51), and the steam delivery pipe (3) passes through the steam pipe hole (51) and is connected to the steam curing machine.

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