Prefabricated box girder steam curing equipment

Abstract

The utility model discloses a prefabricated box girder steam curing device which comprises a box body, a spraying piece arranged in the box body, a driving piece used for driving the spraying piece to move is arranged in the box body, and the box body is used for containing a box girder. The spraying piece is in an arch shape. According to the spraying device for the prefabricated box girder, the prefabricated box girder is pushed into the box body, then the driving piece is started to drive the spraying piece to move in the direction of the prefabricated box girder, and steam is sprayed to the surface of the prefabricated box girder through the spraying piece and the nozzles formed in the spraying piece, so that all parts of the prefabricated box girder are kept at the appropriate curing temperature; in the process that the spraying piece moves in the direction of the prefabricated box girder, a gas receiving pipe arranged on a gas supply roller can be in butt joint with a communicating hole in a gas supply guide rail in sequence, and an abutting rod arranged on a first blocking piece can push a second blocking piece to contract, so that the gas supply guide rail is communicated with a gas supply part, and the purpose of continuously spraying steam to the prefabricated box girder is achieved.

Description

Technical Field

[0001] This utility model relates to the field of steam curing equipment technology, and in particular to a steam curing equipment for precast box girders. Background Technology

[0002] Precast box girders are concrete beam structures prefabricated in factories or prefabrication yards, primarily used for structural support in bridges and buildings. These beams are characterized by their box-like cross-section, are typically cast in concrete, and can be hollow or filled with specific materials.

[0003] In some northern regions, winter temperatures are low, but many bridge girder prefabrication projects must be carried out in winter due to time constraints. At low temperatures, concrete strength is low, and the formwork turnover period is long, which is detrimental to improving the prefabrication progress of box girders. Therefore, a steam curing device for prefabricated box girders is proposed to solve these problems. This device connects steam pipes to a steam generator, and the steam flow rate is adjusted according to temperature changes to ensure that the prefabricated box girders maintain a suitable curing temperature at all times, meeting the requirements for winter construction. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned shortcomings by providing a steam curing device for precast box girders.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a steam curing device for precast box girders, comprising:

[0006] The box body contains a spraying component and a driving component for moving the spraying component. The box body is used to house the box beam.

[0007] The sprayed part is arched, and the sprayed part is provided with nozzles for spraying steam onto the box girder. The sprayed part is also provided with a gas supply unit.

[0008] A gas supply guide rail is installed inside the housing and corresponds to the gas supply section. The gas supply guide rail is used to transport steam.

[0009] The air supply unit includes an air supply roller, an air inlet pipe is provided on the air supply roller, and a connecting hole corresponding to the air inlet pipe is opened on the air supply guide rail. A first sealing plate and a first sealing spring are provided in the connecting hole.

[0010] The air inlet pipe is equipped with a second sealing plate and a second sealing spring. The first sealing plate is equipped with an abutment rod corresponding to the second sealing plate. The abutment rod is used to abut the first sealing plate and the second sealing plate to retract, so as to conduct the air supply guide rail and the air supply section.

[0011] Furthermore, the air supply unit also includes an air supply pipe, which is rotatably connected to the sprayed part.

[0012] Furthermore, the driving component includes a driving unit and a rotating lead screw disposed at its output end;

[0013] The top of the sprayed part is provided with a connecting sleeve that is adapted to the rotating lead screw.

[0014] Furthermore, a support platform is provided inside the box, which is used to place the precast box girder.

[0015] Furthermore, the position of the air inlet pipe on the air supply roller corresponds one-to-one with the connecting hole on the air supply guide rail;

[0016] The movement of the spraying component drives the air supply unit to rotate on the air supply guide rail and causes the air inlet pipe on the air supply unit to connect with the connecting hole on the air supply guide rail in sequence, and the air inlet pipe is connected to the air supply guide rail by the abutment rod.

[0017] Furthermore, the gas supply rail is connected to the steam delivery pipe.

[0018] Furthermore, the enclosure is equipped with temperature monitoring equipment.

[0019] The beneficial effects of this utility model are reflected in:

[0020] This invention involves pushing a precast box girder into the box body, then using a drive unit to move a spraying component along the direction of the precast box girder, and spraying steam onto the surface of the precast box girder through nozzles on the spraying component. This is to maintain a suitable curing temperature for all parts of the precast box girder. In this application, an air supply roller and an air supply guide rail are provided. During the movement of the spraying component along the direction of the precast box girder, the air inlet pipe on the air supply roller will sequentially connect with the connecting hole on the air supply guide rail. Meanwhile, the abutment rod on the first sealing plate will push the second sealing plate to retract. At the same time, the first sealing plate will also retract due to the reaction force, thereby connecting the air supply guide rail with the air supply unit, thus achieving the purpose of continuously spraying steam onto the precast box girder. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a three-dimensional sectional view of the present invention;

[0023] Figure 3 This is a cross-sectional view of the present invention;

[0024] Figure 4 This is a partial view of the present invention.

[0025] In the picture:

[0026] 1. Housing; 11. Drive unit; 12. Support platform;

[0027] 2. Spray-painted parts; 21. Spray nozzle; 22. Connecting sleeve;

[0028] 3. Gas supply section; 31. Gas supply roller; 32. Gas connection pipe; 321. Second sealing plate; 322. Second sealing spring; 33. Gas supply pipe;

[0029] 4. Air supply guide rail; 41. First sealing plate; 411. Contact rod; 42. First sealing spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0031] Please see Figure 1-4 This utility model discloses a steam curing device for precast box girders, comprising:

[0032] Box 1, wherein a spraying component 2 is provided inside the box 1, and a driving component 11 for driving the spraying component 2 to move is provided inside the box 1, and the box 1 is used to house the box beam;

[0033] The sprayed part 2 is arched, and the sprayed part 2 is provided with a nozzle 21 for spraying steam onto the box girder. The sprayed part 2 is provided with a gas supply part 3.

[0034] Gas supply guide rail 4 is provided inside the housing 1 and corresponds to the gas supply section 3. The gas supply guide rail 4 is used to transport steam.

[0035] The air supply unit 3 includes an air supply roller 31, an air inlet pipe 32 is provided on the air supply roller 31, and a connecting hole corresponding to the air inlet pipe 32 is opened on the air supply guide rail 4. A first sealing plate 41 and a first sealing spring 42 are provided in the connecting hole.

[0036] The air inlet pipe 32 is provided with a second sealing plate 321 and a second sealing spring 322. The first sealing plate 41 is provided with an abutment rod 411 corresponding to the second sealing plate 321. The abutment rod 411 is used to abut the first sealing plate 41 and the second sealing plate 321 to retract, so as to conduct the air supply guide rail 4 and the air supply section 3.

[0037] It should be noted that, due to the large volume of precast box girders, measures must be taken to avoid uneven temperature distribution causing changes in internal stress that could lead to product quality issues.

[0038] In use, this application pushes the precast box girder into the box body 1, and then drives the spraying component 2 to move along the direction of the precast box girder by starting the drive component 11, and sprays steam onto the surface of the precast box girder with the nozzle 21 set on it, so as to keep the various parts of the precast box girder at a suitable curing temperature.

[0039] Specifically, in this application, an air supply roller 31 and an air supply guide rail 4 are provided. During the movement of the sprayed part 2 along the precast box girder direction, the air inlet pipe 32 on the air supply roller 31 will sequentially connect with the connecting hole on the air supply guide rail 4. Meanwhile, the abutment rod 411 on the first sealing plate 41 will push the second sealing plate 321 to retract. Simultaneously, the first sealing plate 41 will also retract due to the reaction force. Figure 4 As shown, this allows the air supply guide rail 4 to be connected to the air supply unit 3, thereby achieving the purpose of continuously spraying steam onto the precast box girder.

[0040] The above technical solution is designed to address the problem that the air supply pipeline is difficult to adapt to the reciprocating movement of the sprayed part 2 due to the large volume and length of the precast box girder.

[0041] It is easy to imagine that the air supply unit 3 also includes an air supply pipe 33, which is rotatably connected to the sprayed part 2.

[0042] In this application, the driving component 11 includes a driving unit and a rotating lead screw disposed at its output end;

[0043] The top of the sprayed part 2 is provided with a connecting sleeve 22 that is adapted to the rotating lead screw. It should be noted that the above technical structure is a common technical means in the prior art, so it is not described in detail. At the same time, this part of the structure can also be replaced by a structure that is easy for those skilled in the art to think of.

[0044] like Figure 1 As shown, a support platform 12 is provided inside the box body 1, and the support platform 12 is used to place the precast box girder.

[0045] It should be noted that the positions of the air inlet pipes 32 on the air supply roller 31 correspond one-to-one with the connecting holes on the air supply guide rail 4, so as to ensure that each air inlet pipe 32 on the air supply roller 31 can be connected to the connecting hole in sequence as the sprayed part 2 moves. It should be noted that the diameter of the abutment rod 411 is smaller than the diameter of the air inlet pipe 32, and there is a sufficient gap between the abutment rod 411 and the air inlet pipe 32 so that the air inlet pipe 32 can be inserted into the abutment rod 411 during rotation. The diameter of the air inlet pipe 32 is smaller than the diameter of the connecting hole on the air supply guide rail 4, and there is a sufficient gap between the air inlet pipe 32 and the connecting hole so that the air inlet pipe 32 can be inserted into the connecting hole during rotation.

[0046] It should be noted that the gas supply guide rail 4 is connected to the steam delivery pipe.

[0047] In this application, the box body 1 is equipped with a temperature monitoring device and should also include a controller. The controller is used to adjust the position of the sprayed part 2 according to the feedback of the temperature monitoring device to ensure that the temperature of the precast box girder is uniform.

[0048] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0049] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0050] Additionally, "multiple" refers to two or more.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precast box girder steam curing apparatus, characterized by, The utility model relates to a box body (1) is arranged in the box body (1) inside and is provided with the spraying part (2), the box body (1) is arranged in the driving part (11) for driving the spraying part (2) to move, and the box body (1) is used to place the box girder, the spraying part (2) is arched, and the spraying part (2) is provided with the spout (21) for spraying steam to the box girder, and the spraying part (2) is provided with the gas supply part (3), the gas supply guide rail (4) is arranged in the box body (1) and corresponds with the gas supply part (3), and the gas supply guide rail (4) is used to transport steam, the gas supply part (3) includes the gas supply roller (31), the gas supply roller (31) is provided with the gas connection pipe (32), the gas supply guide rail (4) is provided with the communication hole corresponding with the gas connection pipe (32), and the communication hole is provided with the first plugging piece (41) and the first plugging spring (42), the gas connection pipe (32) is provided with the second plugging piece (321) and the second plugging spring (322), the first plugging piece (41) is provided with the abutment rod (411) corresponding with the second plugging piece (321), and the abutment rod (411) is used to abut the first plugging piece (41) and the second plugging piece (321) and contract to guide the gas supply guide rail (4) and the gas supply part (3). The gas supply part (3) further includes the gas supply pipe (33) rotatably connected with the spraying part (2). The driving part (11) includes a driving unit and a rotating screw rod arranged at the output end of the driving unit. The spraying part (2) is provided with a connecting sleeve (22) at the top thereof, which is adapted to the rotating screw rod. The box body (1) is provided with a bearing table (12) for placing the prefabricated box girder. The positions of the gas connection pipes (32) arranged on the gas supply roller (31) correspond one-to-one with the communication holes on the gas supply guide rail (4).

2. The prefabricated box beam steam curing apparatus according to claim 1, characterized in that: The spraying part (2) moves to drive the gas supply part (3) to rotate on the gas supply guide rail (4) and make the gas connection pipes (32) on the gas supply part (3) sequentially butt joint with the communication holes on the gas supply guide rail (4), and the gas connection pipes (32) are guided to communicate with the gas supply guide rail (4) through the abutment rod (411).

3. The prefabricated box beam steam curing apparatus according to claim 1, characterized in that: The gas supply guide rail (4) is connected with a steam conveying pipe. The box body (1) is provided with a temperature monitoring device.

4. The precast box beam steam curing apparatus according to claim 1, characterized in that: ​ 5. The precast box beam steam curing apparatus according to claim 3, characterized in that: ​ ​ 6. The precast box beam steam curing apparatus according to claim 1, wherein: ​ 7. The prefabricated box beam steam curing apparatus according to claim 1, characterized in that: ​

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