Highway bridge prefabricated box girder spraying maintenance device

Abstract

The utility model provides a highway bridge prefabricated box girder spraying maintenance device, which belongs to the technical field of highway bridge prefabricated boxes and comprises a mounting frame and a plurality of first spraying heads arranged on the top wall surface of the mounting frame, mounting ports are formed in the left wall surface and the right wall surface of the mounting frame, and rotating plates are rotatably connected in the mounting ports. Inserting columns are movably inserted into inserting holes formed in the opposite inner side faces of the two rotating plates, mounting plates are arranged at the opposite inner side ends of the two inserting columns, and a plurality of second spraying heads are arranged on the opposite inner side faces of the two mounting plates. The spraying angle and the spraying range of the second spraying heads are changed through the rotating plate, the maintenance requirements of different shapes of the two sides of the highway bridge prefabricated box girder are met, and the problem that the highway bridge prefabricated box girder is not in place during maintenance and spraying is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of precast box girder technology for highway bridges, and specifically relates to a spray curing device for precast box girders of highway bridges. Background Technology

[0002] Precast box girders are precast superstructure components for highway bridges. They are usually hollow rectangular sections made of cast concrete. Their interiors can be single-cell or multi-cell structures to meet different design requirements. Currently, after the precast box girders for highway bridges are manufactured, they need to be cured using a special spray curing device.

[0003] Existing spray curing devices for precast box girders of highway bridges are typically supported by a U-shaped frame with evenly distributed spray nozzles on its inner wall to continuously spray water onto the surface of the box girder to maintain a constant level of moisture. Although this method can effectively spray and cure precast box girders, the shape of the two sides of the precast box girder of highway bridges can change according to different usage requirements. Traditional spraying methods often cannot adapt to these shape changes, resulting in uneven spraying effects and incomplete spraying. Utility Model Content

[0004] In view of this, the present invention provides a spray curing device for precast box girders of highway bridges. By rotating the plate, the spraying angle and range of the second spray head can be changed, which can meet the curing needs of different shapes on both sides of the precast box girder of highway bridges and solve the problem of inadequate spraying during the curing of precast box girders of highway bridges.

[0005] To solve the above-mentioned technical problems, this utility model provides a spray curing device for precast box girders of highway bridges, including a mounting frame and multiple spray heads 1 set on the top wall of the mounting frame. The left and right walls of the mounting frame are provided with mounting openings, and rotating plates are rotatably connected to the mounting openings. Inserted posts are movably inserted into the insertion holes on the opposite inner sides of the two rotating plates. Mounting plates are provided on the opposite inner ends of the two inserted posts. Multiple spray heads 2 are provided on the opposite inner sides of the two mounting plates. This allows for changing the spray angle and range of the spray heads 2, meeting the curing needs of different shapes on both sides of the precast box girders of highway bridges, and solving the problem of inadequate spraying during the curing of precast box girders of highway bridges.

[0006] One side of the rotating plate is provided with threaded holes near each insertion post, and locking bolts are threaded into each threaded hole. The inner end of the locking bolts abuts against the adjacent insertion post on the same side, thus ensuring the stability of the insertion post and its auxiliary mechanism during use.

[0007] It also includes a drive mechanism for driving the rotating plate to rotate. The drive mechanism includes arc-shaped worm gear plates respectively set at opposite ends of the two rotating plates. A worm is rotatably connected to each arc-shaped worm gear plate in the mounting port. The worm meshes with the adjacent arc-shaped worm gear plate on the same side, thereby realizing the precise rotation of the rotating plate.

[0008] It also includes a synchronous drive assembly, which is used to synchronously drive the worm gear to rotate. The synchronous drive assembly includes an assembly cavity set at the upper end of the mounting bracket. A rotating rod is rotatably connected in the assembly cavity. The two ends of the rotating rod are provided with symmetrically distributed bevel gears. Both ends of the bottom wall of the assembly cavity are provided with openings corresponding to the worm gears. The worm gears pass through the adjacent openings on the same side and are provided with bevel gears at their ends. The bevel gears mesh with the adjacent bevel gears on the same side, thereby realizing the synchronous rotation of the rotating plate.

[0009] The synchronous drive assembly also includes a motor located at one end of the upper part of the mounting bracket. The output shaft of the motor is fixedly connected to one end of the rotating rod, thus providing a power source.

[0010] The left and right walls of the mounting bracket are equipped with folding protective covers near each mounting port. Each folding protective cover has a through-hole that corresponds to the rotating plate, which can block the opening of the mounting port without affecting the movement of the rotating plate.

[0011] The plug is octagonal, which ensures the stability of the plug connection.

[0012] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0013] 1. Based on the specific shape of both sides of the precast box girder of the highway bridge, the operation of the motor is adjusted. The rotation of the motor output shaft drives the rotating rod and the first bevel gear at both ends to rotate synchronously. When the first bevel gear rotates, it drives the worm gear to rotate synchronously through the second bevel gear meshing with it. When the worm gear rotates, it drives the rotating plate, the insert column, the mounting plate and the second spray head to swing synchronously through the arc-shaped worm wheel plate meshing with it. After the angle of the second spray head corresponds to the shape of both sides of the precast box girder of the highway bridge, the external water supply end is connected to the first and second spray heads respectively, and then water spraying begins to spray and cure the precast box girder of the highway bridge. The spraying angle and range of the second spray head can be changed to meet the curing needs of different shapes on both sides of the precast box girder of the highway bridge, and solve the problem of inadequate spraying during the curing of the precast box girder of the highway bridge.

[0014] 2. Loosen the locking bolt to separate it from the insert post. Then pull the insert post and its auxiliary mechanism out of the insertion hole. Then rotate the second spray head to a suitable angle and reverse the above operation. Finally, tighten the locking bolt to ensure the stability of the insert post and its auxiliary mechanism during use and realize the multi-angle adjustment of the second spray head. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a spray curing device for precast box girders of highway bridges according to the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0018] Figure 4 This is an enlarged structural diagram of point B in this utility model;

[0019] Figure 5 This is a schematic diagram of the insert structure of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 100, mounting bracket; 101, spray head one; 102, mounting port; 103, rotating plate; 104, insert post; 105, mounting plate; 106, spray head two; 107, locking bolt; 200, arc-shaped worm gear plate; 201, worm; 300, assembly cavity; 301, rotating rod; 302, bevel gear one; 303, bevel gear two; 304, motor; 400, folding protective cover. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0022] This embodiment provides a spray curing device for precast box girders of highway bridges, such as... Figure 1-5 As shown: It includes a mounting frame 100 and multiple spray heads 101 disposed on the top wall of the mounting frame 100. The multiple spray heads 101 are evenly distributed to ensure a wide spray coverage. The left and right walls of the mounting frame 100 are provided with mounting openings 102. Rotating plates 103 are rotatably connected in each mounting opening 102. Rotating shafts for providing rotational support for rotating plates 103 are provided in each mounting opening 102. Insert pins 104 are movably inserted into the insertion holes provided on the opposite inner sides of the two rotating plates 103. Mounting plates 105 are provided on the opposite inner ends of the two insert pins 104. Multiple spray heads 106 are provided on the opposite inner sides of the two mounting plates 105 to facilitate the adjustment of the spray angle of the spray heads 106.

[0023] Move the mounting frame 100 to the appropriate position of the precast box girder of the highway bridge. Then, according to the specific shape of both sides of the precast box girder, drive the rotating plate 103, the insert column 104, the mounting plate 105, and the second spray head 106 to swing synchronously until the angle of the second spray head 106 corresponds to the shape of both sides of the precast box girder. Then connect the external water supply end to the first spray head 101 and the second spray head 106 respectively, and start spraying water to spray and cure the precast box girder. It can change the spray angle and range of the second spray head 106 to meet the curing needs of different shapes on both sides of the precast box girder and solve the problem of incomplete spraying during the curing of the precast box girder. Alternatively, the insert column 104 and its auxiliary mechanism can be pulled out from the insertion hole, and then the second spray head 106 can be rotated to a suitable angle. The above operation is reversed. Finally, tighten the locking bolt 107 to ensure the stability of the insert column 104 and its auxiliary mechanism and realize the multi-angle adjustment of the second spray head 106.

[0024] like Figure 1-2 As shown, a threaded hole is provided on one side of the rotating plate 103 near each insertion post 104. A locking bolt 107 is threaded into each threaded hole. The inner end of the locking bolt 107 abuts against the adjacent insertion post 104 on the same side. Tightening the locking bolt 107 will make the inner end of the locking bolt 107 press against the insertion post 104, ensuring the stability of the insertion post 104 and its auxiliary mechanism during use.

[0025] like Figure 2-4 As shown, it also includes a drive mechanism for driving the rotating plate 103 to rotate. The drive mechanism includes arc-shaped worm gear plates 200 respectively disposed at opposite ends of the two rotating plates 103. A worm 201 is rotatably connected in the mounting port 102 near each arc-shaped worm gear plate 200. A rotating hole is provided in the mounting port 102 near each arc-shaped worm gear plate 200 to provide rotational support for the worm 201. The worm 201 is respectively engaged with the adjacent arc-shaped worm gear plate 200 on the same side.

[0026] When the worm gear 201 rotates, it drives the rotating plate 103, the insert post 104, the mounting plate 105 and the second spray head 106 to swing synchronously through the arc-shaped worm wheel plate 200 that meshes with it. This serves to adjust the angle of the rotating plate 103 and its auxiliary mechanisms, thereby achieving precise rotation of the rotating plate 103. At the same time, the meshing connection between the arc-shaped worm wheel plate 200 and the worm gear 201 can achieve self-locking, ensuring the stability of the second spray head 106 after adjustment.

[0027] like Figure 2-4As shown, it also includes a synchronous drive assembly, which is used to synchronously drive the worm gear 201 to rotate. The synchronous drive assembly includes an assembly cavity 300 disposed on the upper end of the mounting bracket 100. A rotating rod 301 is rotatably connected in the assembly cavity 300. The assembly cavity 300 is provided with a rotating hole for providing rotational support for the rotating rod 301. The two ends of the rotating rod 301 are provided with symmetrically distributed bevel gears 302. The bottom wall of the assembly cavity 300 is provided with openings that correspond one-to-one with the worm gear 201. The worm gear 201 passes through the adjacent openings on the same side and is provided with a bevel gear 303 at its end. The bevel gear 303 meshes with the adjacent bevel gear 302 on the same side.

[0028] The rotating rod 301 and the bevel gears 302 at both ends rotate synchronously. When the bevel gears 302 rotate, they drive the worm gear 201 to rotate synchronously through the bevel gears 303 that mesh with it, thereby realizing the synchronous rotation of the rotating plate 103.

[0029] like Figure 1-4 As shown, the synchronous drive assembly also includes a motor 304 disposed at one end of the upper part of the mounting bracket 100. The output shaft of the motor 304 is fixedly connected to one end of the rotating rod 301, and the motor 304 provides a power source.

[0030] like Figure 1-3 As shown, the left and right walls of the mounting bracket 100 are provided with folding protective covers 400 near each mounting port 102. Each folding protective cover 400 has a through-hole corresponding to the rotating plate 103, which can block the opening of the mounting port 102 without affecting the movement of the rotating plate 103.

[0031] like Figure 2-5 As shown, the insertion post 104 is an octagonal post to ensure the stability of the insertion of the insertion post 104 and to prevent rotation.

[0032] The working principle of the spray curing device for precast box girders of highway bridges provided by this utility model is as follows: First, the mounting frame 100 is moved to an appropriate position on the precast box girder of the highway bridge. Then, according to the specific shape of both sides of the precast box girder, the operation of the motor 304 is adjusted. The output shaft of the motor 304 rotates, driving the rotating rod 301 and the bevel gears 302 at both ends to rotate synchronously. When the bevel gears 302 rotate, they drive the worm gear 201 to rotate synchronously through the bevel gears 303 meshing with them. When the worm gear 201 rotates, it drives the rotating plate 103, the insert column 104, the mounting plate 105 and the spray head 106 to swing synchronously through the arc-shaped worm wheel plate 200 meshing with it until the spray head 106... After the angle corresponds to the shape of the two sides of the precast box girder of the highway bridge, the external water supply end is connected to the spray head 101 and the spray head 106 respectively, and then water spraying is started to spray and maintain the precast box girder of the highway bridge. The spray angle and range of the spray head 106 can be changed to meet the maintenance needs of different shapes on both sides of the precast box girder of the highway bridge. Then, the locking bolt 107 is loosened to separate it from the insert 104. Then the insert 104 and its auxiliary mechanism are pulled out from the insertion hole. Then the spray head 106 is rotated to a suitable angle and the above operation is reversed. Finally, the locking bolt 107 is tightened to ensure the stability of the insert 104 and its auxiliary mechanism during use and realize the multi-angle adjustment of the spray head 106.

[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A spray curing device for precast box girders of highway bridges, characterized in that: The device includes a mounting frame (100) and multiple spray heads (101) disposed on the top wall of the mounting frame (100). The left and right walls of the mounting frame (100) are provided with mounting openings (102). Rotating plates (103) are rotatably connected to each mounting opening (102). Insert pins (104) are movably inserted into the insertion holes provided on the opposite inner sides of the two rotating plates (103). Mounting plates (105) are provided on the opposite inner ends of the two insert pins (104). Multiple spray heads (106) are provided on the opposite inner sides of the two mounting plates (105).

2. The spray curing device for precast box girders of highway bridges as described in claim 1, characterized in that: The rotating plate (103) has a threaded hole on one side near each insertion post (104), and a locking bolt (107) is threaded into each threaded hole. The inner end of the locking bolt (107) abuts against the adjacent insertion post (104) on the same side.

3. The spray curing device for precast box girders of highway bridges as described in claim 1, characterized in that: It also includes a drive mechanism for driving the rotating plate (103) to rotate. The drive mechanism includes arc-shaped worm gear plates (200) respectively disposed at opposite ends of the two rotating plates (103). A worm (201) is rotatably connected in the mounting port (102) near each arc-shaped worm gear plate (200). The worm (201) is meshed with the adjacent arc-shaped worm gear plate (200) on the same side.

4. The spray curing device for precast box girders of highway bridges as described in claim 3, characterized in that: It also includes a synchronous drive assembly for synchronously driving the worm gear (201) to rotate. The synchronous drive assembly includes an assembly cavity (300) disposed on the upper end of the mounting bracket (100). A rotating rod (301) is rotatably connected in the assembly cavity (300). The two ends of the rotating rod (301) are provided with symmetrically distributed bevel gears (302). Both ends of the bottom wall of the assembly cavity (300) are provided with openings corresponding to the worm gear (201). The worm gear (201) passes through the adjacent openings on the same side and is provided with bevel gears (303) at its end. The bevel gears (303) mesh with the adjacent bevel gears (302) on the same side.

5. The spray curing device for precast box girders of highway bridges as described in claim 4, characterized in that: The synchronous drive assembly also includes a motor (304) disposed at one end of the upper part of the mounting bracket (100), and the output shaft of the motor (304) is fixedly connected to one end of the rotating rod (301).

6. The spray curing device for precast box girders of highway bridges as described in claim 1, characterized in that: The left and right walls of the mounting bracket (100) are provided with folding protective covers (400) near each mounting port (102), and each folding protective cover (400) has a through opening corresponding to the rotating plate (103).

7. The spray curing device for precast box girders of highway bridges as described in claim 1, characterized in that: The insert (104) is an octagonal prism.

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