A steam curing device for prefabricated bridge deck

Abstract

The present invention belongs to the technical field of steam curing equipment, and discloses a prefabricated bridge panel steam curing device, and its technical highlights are: it comprises a curing box, the inner bottom wall of the curing box is provided with a plurality of groups of placement grooves distributed at equal intervals, a bridge panel body is detachably installed in the placement groove, the inner cavity of the curing box is provided with transverse plates located on both sides of the bridge panel body, a steam nozzle is fixedly installed on one side wall of the transverse plate facing the bridge panel body, the inner cavity of the curing box is provided with a lifting component connected to the transverse plate, the inner cavity of the curing box is provided with a wiping mechanism that cooperates with the bridge panel body, the wiping mechanism comprises a sponge ring, a positioning component, a translation component and a dehydration component, and by arranging the positioning component, the translation component and the dehydration component to cooperate with each other, the position of the sponge ring can be automatically adjusted, and then the sponge ring is controlled to continuously clean the excessive moisture attached to the surface of the bridge panel body, thereby effectively improving the curing effect of the bridge panel body.

Description

Technical Field

[0001] The invention relates to the technical field of steam curing equipment, in particular to a steam curing device for a prefabricated bridge deck. Background Art

[0002] With the development of society, road and bridge transportation has become a common goal pursued by countries around the world. In order to meet the requirements of high stability, high durability and comfort of road and bridge, the bridge deck must have sufficient strength and elastic modulus to meet the requirements of no deformation after high load. The maintenance of concrete bridge deck has a significant impact on the development of elastic modulus and strength of the bridge deck, as well as the generation and development of cracks.

[0003] After the bridge deck is cast, it needs to be steam-cured. Currently, when curing the bridge deck, the bridge deck is usually placed flat in a curing box, and then a large amount of steam is injected into the curing box. When using the existing steam curing method, one side of the bridge deck cannot fully contact the steam, and the curing effect is poor. In addition, the steam is easy to condense into water droplets on the bridge deck. Too much water on the surface of the bridge deck is easy to affect the structural strength of the bridge deck. Summary of the invention

[0004] The object of the present invention is to provide a prefabricated bridge deck steam curing device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A prefabricated bridge deck steam curing device comprises a curing box, a box door is arranged on one side of the curing box, a plurality of equally spaced placement slots are arranged on the inner bottom wall of the curing box, a bridge deck body is detachably mounted in the placement slots, a clamping piece which cooperates with the bridge deck body is arranged on the inner side wall of the curing box, a transverse plate located on both sides of the bridge deck body is arranged in the inner cavity of the curing box, a steam nozzle is fixedly mounted on one side wall of the transverse plate facing the bridge deck body, the steam nozzle is connected to an external steam generator through a conduit, a lifting assembly connected to the transverse plate is arranged in the inner cavity of the curing box, the lifting assembly is used to control the transverse plate and the steam nozzle to reciprocate in the vertical direction on the outer side of the bridge deck body, and the curing box The inner cavity is provided with a wiping mechanism that cooperates with the bridge deck body, and the wiping mechanism includes a sponge ring, a positioning assembly, a translation assembly and a dehydration assembly. The sponge ring is provided with two groups and is respectively located on both sides of the bridge deck body. The positioning assembly is connected to the sponge ring, and the positioning assembly is used to control the sponge ring to be at the top of the maintenance box and above the bridge deck body. The translation assembly is located on the surface of the cross plate and is connected to the positioning assembly. When the cross plate moves in the vertical direction, the translation assembly controls the sponge ring to move synchronously along the surface of the bridge deck body by cooperating with the positioning assembly. The dehydration assembly is connected to the positioning assembly. After the sponge ring absorbs moisture, the dehydration assembly is used to squeeze the sponge ring to remove water.

[0007] As a further solution of the present invention: the clamping member includes an electric telescopic rod fixedly installed on the inner wall of the maintenance box, and the telescopic end of the electric telescopic rod is fixedly installed with a clamping plate that cooperates with the bridge deck body.

[0008] As a further solution of the present invention: the lifting assembly includes multiple groups of threaded rods rotatably installed between the top wall and the bottom wall of the maintenance box, the threaded rods are respectively threadedly connected to the two ends of the cross plate, and synchronous gear plates are fixedly installed on the surface of the threaded rods. The outer sides of the multiple groups of synchronous gear plates are jointly meshed and connected with synchronous belts, and one end of a group of threaded rods extends to the outside of the maintenance box and is connected to a motor.

[0009] As a further solution of the present invention: the positioning assembly includes a plurality of groups of bearing frames slidably installed along the vertical direction in the inner cavity of the maintenance box, the bearing frames are respectively arranged on both sides of the bridge deck body, the bearing frames are an inverted U-shaped structure, a rotating roller is rotatably installed in the bearing frames, the sponge ring is sleeved on the outer side of the rotating roller, a first magnetic sheet is fixedly installed on the bottom wall of the bearing frame, and a second magnetic sheet that cooperates with the first magnetic sheet is fixedly installed on the top wall of the maintenance box, and the magnetic attraction between the first magnetic sheet and the second magnetic sheet is greater than the sum of the gravity of the bearing frames, the rotating roller and the sponge ring.

[0010] As a further solution of the present invention: the translation assembly includes a magnetic block fixedly installed at the bottom end of the carrier frame, a bracket fixedly installed on the surface of the cross plate, and an electromagnetic block that cooperates with the magnetic block is fixedly installed on the end of the bracket away from the cross plate, and the sum of the magnetic attraction force between the electromagnetic block and the magnetic block and the gravity of the carrier frame, the rotating roller and the sponge ring is greater than the magnetic attraction force between the first magnetic sheet and the second magnetic sheet.

[0011] As a further solution of the present invention: the dehydration assembly includes a squeezing roller rotatably installed in a supporting frame, the squeezing roller is located below the rotating roller and the sponge ring, and a water collecting box located below the squeezing roller is detachably installed in the supporting frame.

[0012] As a further solution of the present invention: guide blocks are fixedly installed on the two side walls opposite to each other of the support frame, and a guide rod slidably connected to the guide blocks is fixedly installed between the top wall and the bottom wall of the maintenance box.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the lifting assembly and the cross plate to cooperate with each other, the steam nozzle can be controlled to move in all directions on both sides of the bridge deck body, and then the bridge deck body can be subjected to all-round steam curing treatment; by setting the positioning assembly, the translation assembly and the dehydration assembly to cooperate with each other, the position of the sponge ring can be automatically adjusted, and then the sponge ring can be controlled to continuously clean the excessive moisture attached to the surface of the bridge deck body, effectively improving the curing effect of the bridge deck body. The problem that one side of the current bridge deck cannot be fully contacted with steam, the curing effect is poor, and the steam is easy to condense into water droplets on the bridge deck, and the excessive water on the surface of the bridge deck is easy to affect the structural strength of the bridge deck is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of a prefabricated bridge deck steam curing device provided in an embodiment of the present invention.

[0015] Figure 2 The present invention is a schematic diagram of the internal structure of a curing box in a prefabricated bridge deck steam curing device provided in an embodiment of the present invention.

[0016] Figure 3 It is a schematic diagram of the main structure of a prefabricated bridge deck steam curing device provided in an embodiment of the present invention.

[0017] Figure 4 It is a schematic diagram of a bearing frame and its connection structure in a prefabricated bridge deck steam curing device provided in an embodiment of the present invention.

[0018] Among them: 1-maintenance box, 11-box door, 2-placing slot, 3-bridge panel body, 4-clamping piece, 41-electric telescopic rod, 42-clamping plate, 5-cross plate, 6-steam nozzle, 7-lifting assembly, 71-threaded rod, 72-synchronous gear plate, 73-synchronous belt, 74-motor, 8-wiping mechanism, 81-sponge ring, 82-positioning assembly, 821-carrying frame, 822-rotating roller, 823-first magnetic sheet, 824-second magnetic sheet, 83-translation assembly, 831-magnetic block, 832-bracket, 833-electromagnetic block, 84-dehydration assembly, 841-squeezing roller, 842-water collecting box, 9-guide block, 10-guide rod. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0020] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, it is a structural diagram of a prefabricated bridge deck steam curing device provided by an embodiment of the present invention, comprising a curing box 1, a box door 11 is arranged on one side of the curing box 1, a plurality of groups of equally spaced placement grooves 2 are provided on the inner bottom wall of the curing box 1, a bridge deck body 3 is detachably installed in the placement groove 2, a clamping member 4 cooperating with the bridge deck body 3 is arranged on the inner side wall of the curing box 1, a transverse plate 5 is arranged on both sides of the bridge deck body 3 in the inner cavity of the curing box 1, a steam nozzle 6 is fixedly installed on one side wall of the transverse plate 5 facing the bridge deck body 3, the steam nozzle 6 is connected to an external steam generator through a conduit, a lifting assembly 7 connected to the transverse plate 5 is arranged in the inner cavity of the curing box 1, the lifting assembly 7 is used to control the transverse plate 5 and the steam nozzle 6 to reciprocate in the vertical direction on the outer side of the bridge deck body 3, and the curing box 1 is provided with a plurality of equally spaced placement grooves 2 on the inner bottom wall of the curing box 1, a bridge deck body 3 is detachably installed in the placement groove 2, a clamping member 4 cooperating with the bridge deck body 3 is arranged on the inner side wall of the curing box 1, a transverse plate 5 is arranged on both sides of the bridge deck body 3 in the inner cavity of the curing box 1, a steam nozzle 6 is fixedly installed on the one side wall of the transverse plate 5 facing the bridge deck body 3, the steam nozzle 6 is connected to an external steam generator through a conduit, a lifting assembly 7 connected to the transverse plate 5 is arranged in the inner cavity of the curing box 1, and the lifting assembly 7 is used to control the transverse plate 5 and the steam nozzle 6 to reciprocate in the vertical direction on the outer side of the bridge deck body 3 The cavity is provided with a wiping mechanism 8 which cooperates with the bridge deck body 3, and the wiping mechanism 8 includes a sponge ring 81, a positioning assembly 82, a translation assembly 83 and a dehydration assembly 84. The sponge ring 81 is provided with two groups and is respectively located on both sides of the bridge deck body 3. The positioning assembly 82 is connected to the sponge ring 81, and the positioning assembly 82 is used to control the sponge ring 81 to be at the top of the maintenance box 1 and above the bridge deck body 3. The translation assembly 83 is located on the surface of the cross plate 5 and is connected to the positioning assembly 82. When the cross plate 5 moves in the vertical direction, the translation assembly 83 controls the sponge ring 81 to move synchronously along the surface of the bridge deck body 3 by cooperating with the positioning assembly 82. The dehydration assembly 84 is connected to the positioning assembly 82. After the sponge ring 81 absorbs moisture, the dehydration assembly 84 is used to squeeze and remove water from the sponge ring 81.

[0022] When in use, the bridge panel body 3 that needs to be maintained is placed in the maintenance box 1, and the bridge panel body 3 is placed vertically in the placement groove 2. The clamping parts 4 squeeze and position the bridge panel body 3 on both sides, and the steam nozzle 6 sprays steam toward the bridge panel body 3. The lifting component 7 controls the cross plate 5 and the steam nozzle 6 to move in the vertical direction outside the bridge panel body 3. The steam contacts the bridge panel body 3 in all directions. The steam nozzle 6 can perform all-round steam maintenance on the surface of the bridge panel body 3. During steam maintenance, the positioning component 82 controls the sponge ring 81 to always be above the bridge panel body 3. When a large amount of water droplets condense on the surface of the bridge panel body 3 and need to be cleaned , the lifting assembly 7 controls the horizontal plate 5 to move to the highest point, the translation assembly 83 cooperates with the positioning assembly 82 to control the sponge ring 81 and the horizontal plate 5 to form a whole, the lifting assembly 7 controls the horizontal plate 5 to move in the vertical direction and drives the sponge ring 81 to move in the vertical direction synchronously, and the sponge ring 81 can wipe and clean the water droplets attached to the surface of the bridge deck body 3 when it moves on the surface of the bridge deck body 3. While the sponge ring 81 absorbs water, the dehydration assembly 84 squeezes and dehydrates the sponge ring 81 to prevent the sponge ring 81 from absorbing too much water. The dehydrated sponge ring 81 can continue to wipe and clean the surface of the bridge deck body 3. After the wiping and cleaning is completed, the translation assembly 83 releases the restriction on the sponge ring 81, and the positioning assembly 82 re-positions and fixes the sponge ring 81 above the bridge deck body 3.

[0023] like Figure 1 , Figure 2 As shown, as a preferred embodiment of the present invention, the clamping member 4 includes an electric telescopic rod 41 fixedly installed on the inner wall of the maintenance box 1, and the telescopic end of the electric telescopic rod 41 is fixedly installed with a clamping plate 42 that cooperates with the bridge deck body 3.

[0024] After the bridge deck body 3 is placed in the placement groove 2, the electric telescopic rod 41 pushes the clamping plate 42 to move toward the bridge deck body 3. The clamping plate 42 squeezes and positions the side wall of the bridge deck body 3, and can control the bridge deck body 3 to stably maintain a vertical state in the maintenance box 1.

[0025] like Figure 2 , Figure 3 , Figure 4 As shown, as a preferred embodiment of the present invention, the lifting assembly 7 includes a plurality of groups of threaded rods 71 ​​rotatably installed between the top wall and the bottom wall of the curing box 1, the threaded rods 71 ​​are respectively threadedly connected to the two ends of the cross plate 5, and a synchronous gear plate 72 is fixedly installed on the surface of the threaded rod 71. The outer sides of the plurality of groups of synchronous gear plates 72 are jointly meshed and connected with a synchronous belt 73. One end of a group of threaded rods 71 ​​extends to the outside of the curing box 1 and is connected to a motor 74.

[0026] When in use, the motor 74 drives a group of threaded rods 71 ​​to rotate and then drives the synchronous gear plate 72 to rotate synchronously. Multiple groups of synchronous gear plates 72 cooperate with the synchronous belt 73 to drive multiple groups of threaded rods 71 ​​to rotate synchronously. The threaded rods 71 ​​and the cross plate 5 are spirally transmitted, which can push the cross plate 5 to reciprocate in the vertical direction on the outside of the bridge deck body 3. The cross plate 5 drives the steam nozzle 6 to move synchronously in the vertical direction.

[0027] like Figure 2 , Figure 3 , Figure 4 As shown, as a preferred embodiment of the present invention, the positioning assembly 82 includes a plurality of groups of bearing frames 821 slidably installed along the vertical direction in the inner cavity of the maintenance box 1, and the bearing frames 821 are respectively arranged on both sides of the bridge deck body 3, and the bearing frames 821 are an inverted U-shaped structure. A rotating roller 822 is rotatably installed in the bearing frame 821, and the sponge ring 81 is sleeved on the outer side of the rotating roller 822. A first magnetic sheet 823 is fixedly installed on the bottom wall of the bearing frame 821, and a second magnetic sheet 824 that cooperates with the first magnetic sheet 823 is fixedly installed on the top wall of the maintenance box 1, and the magnetic attraction between the first magnetic sheet 823 and the second magnetic sheet 824 is greater than the sum of the gravity of the bearing frame 821, the rotating roller 822 and the sponge ring 81.

[0028] Initially, the supporting frame 821 is located on the top wall of the maintenance box 1. At this time, the first magnetic sheet 823 and the second magnetic sheet 824 are in contact with each other, and the first magnetic sheet 823 and the second magnetic sheet 824 are connected as a whole through magnetic attraction. At this time, the supporting frame 821, the rotating roller 822 and the sponge ring 81 are stably located above the bridge deck body 3. When it is necessary to wipe the moisture on the surface of the bridge deck body 3, the cross plate 5 moves upward to the highest point, and the translation component 83 controls the supporting frame 821 and the cross plate 5 to be connected as a whole. When the cross plate 5 moves downward, it will drive the supporting frame 821 to move downward synchronously. At this time, the first magnetic sheet 823 and the second magnetic sheet 824 are separated from each other, and the cross plate 5 and the supporting frame 821 cooperate with each other to drive the sponge ring 81 to roll along the surface of the bridge deck body 3. The sponge ring 81 can automatically wipe and clean the moisture attached to the surface of the bridge deck body 3. While the sponge ring 81 is cleaning the water, the dehydration component 84 can clean the water filled in the sponge ring 81 , and the cleaned sponge ring 81 can continuously wipe the surface of the bridge deck body 3 .

[0029] like Figure 2 , Figure 3 , Figure 4As shown, as a preferred embodiment of the present invention, the translation assembly 83 includes a magnetic block 831 fixedly installed at the bottom end of the carrier frame 821, a bracket 832 is fixedly installed on the surface of the cross plate 5, and an electromagnetic block 833 that cooperates with the magnetic block 831 is fixedly installed at one end of the bracket 832 away from the cross plate 5, and the sum of the magnetic attraction between the electromagnetic block 833 and the magnetic block 831 and the gravity of the carrier frame 821, the rotating roller 822 and the sponge ring 81 is greater than the magnetic attraction between the first magnetic sheet 823 and the second magnetic sheet 824.

[0030] Initially, the electromagnetic block 833 is in a power-off state. When it is necessary to clean the water attached to the surface of the bridge deck body 3, the electromagnetic block 833 is energized. When the cross plate 5 moves upward to the highest point, the electromagnetic block 833 fits with the magnetic block 831. The electromagnetic block 833 is connected to the magnetic block 831 as a whole through magnetic attraction. When the cross plate 5 moves downward, it can drive the supporting frame 821 to move downward synchronously. The supporting frame 821 drives the sponge ring 81 to roll on the surface of the bridge deck body 3, thereby wiping and cleaning the water attached to the surface of the bridge deck body 3.

[0031] like Figure 2 , Figure 3 , Figure 4 As shown, as a preferred embodiment of the present invention, the dehydration component 84 includes a squeezing roller 841 rotatably installed in a supporting frame 821, the squeezing roller 841 is located below the rotating roller 822 and the sponge ring 81, and a water collecting box 842 located below the squeezing roller 841 is detachably installed in the supporting frame 821.

[0032] When the sponge ring 81 wipes the moisture attached to the surface of the bridge deck body 3, the moisture is absorbed and filled into the sponge ring 81. With continuous wiping, the moisture will gradually accumulate in the sponge ring 81. The increased moisture in the sponge ring 81 will cause the wiping effect to deteriorate. When the sponge ring 81 rolls, the squeezing roller 841 can automatically squeeze the sponge ring 81, thereby squeezing out the moisture in the sponge ring 81. The dehydrated sponge ring 81 can continue to wipe the bridge deck body 3.

[0033] like Figure 2 , Figure 3 , Figure 4 As shown, as a preferred embodiment of the present invention, guide blocks 9 are fixedly installed on the two opposite side walls of the support frame 821, and a guide rod 10 slidably connected to the guide blocks 9 is fixedly installed between the top wall and the bottom wall of the maintenance box 1.

[0034] The working principle of the present invention is: when in use, the bridge deck body 3 that needs to be maintained is placed in the maintenance box 1, the bridge deck body 3 is placed vertically in the placement groove 2, the clamping parts 4 squeeze and position the bridge deck body 3 on both sides, the steam nozzle 6 sprays steam toward the bridge deck body 3, the motor 74 drives a group of threaded rods 71 ​​to rotate and then drives the synchronous gear plate 72 to rotate synchronously, multiple groups of synchronous gear plates 72 cooperate with the synchronous belt 73, and can drive multiple groups of threaded rods 71 ​​to rotate synchronously, the threaded rods 71 ​​and the cross plate 5 are spirally driven, and can push the cross plate 5 to reciprocate in the vertical direction outside the bridge deck body 3, and the cross plate 5 drives the steam nozzle 6 to move synchronously in the vertical direction. The steam contacts the bridge deck body 3 in all directions, and the steam nozzle 6 can perform all-round steam maintenance treatment on the surface of the bridge deck body 3.

[0035] During steam maintenance, the first magnetic sheet 823 and the second magnetic sheet 824 are in contact with each other, and the first magnetic sheet 823 and the second magnetic sheet 824 are connected as a whole by magnetic attraction. At this time, the supporting frame 821, the rotating roller 822 and the sponge ring 81 are stably located above the bridge deck body 3. When it is necessary to wipe the moisture on the surface of the bridge deck body 3, the cross plate 5 moves upward to the highest point, and the electromagnetic block 833 is energized. When the cross plate 5 moves upward to the highest point, the electromagnetic block 833 and the magnetic block 831 are in contact, and the electromagnetic block 833 and the magnetic block 831 are connected as a whole by magnetic attraction. When the cross plate 5 moves downward, it can drive the supporting frame 821 to move downward synchronously, and the supporting frame 821 drives the sponge ring 81 to roll on the surface of the bridge deck body 3, thereby wiping and cleaning the moisture attached to the surface of the bridge deck body 3. While the sponge ring 81 is cleaning the moisture, the squeezing roller 841 can automatically squeeze the sponge ring 81 , thereby squeezing out the moisture in the sponge ring 81 . The dehydrated sponge ring 81 can continuously wipe the bridge deck body 3 .

[0036] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A prefabricated bridge deck steam curing device, comprising a curing box, a box door is provided on one side of the curing box, a plurality of equally spaced placement grooves are provided on the inner bottom wall of the curing box, a bridge deck body is detachably installed in the placement groove, and a clamping piece that cooperates with the bridge deck body is provided on the inner side wall of the curing box, characterized in that: The inner cavity of the maintenance box is provided with transverse plates located on both sides of the bridge deck body, and a steam nozzle is fixedly installed on the side wall of the transverse plate facing the bridge deck body, and the steam nozzle is connected to an external steam generator through a conduit. The inner cavity of the maintenance box is provided with a lifting assembly connected to the transverse plate, and the lifting assembly is used to control the transverse plate and the steam nozzle to reciprocate in the vertical direction on the outside of the bridge deck body. The inner cavity of the maintenance box is provided with a wiping mechanism that cooperates with the bridge deck body, and the wiping mechanism includes a sponge ring, a positioning assembly, a translation assembly and a dehydration assembly. The sponge ring is provided with two groups and is respectively located on both sides of the bridge deck body. The positioning assembly is connected to the sponge ring, and the positioning assembly is used to control the sponge ring to be at the top of the maintenance box and above the bridge deck body. The positioning assembly includes a plurality of groups of bearing frames slidably installed in the inner cavity of the maintenance box along the vertical direction, and the bearing frames are respectively arranged on both sides of the bridge deck body. The bearing frames are of an inverted U-shaped structure, and a rotating roller is rotatably installed in the bearing frames. The sponge ring is sleeved on the outside of the rotating roller, and a first magnetic sheet is fixedly installed on the bottom wall of the carrier frame, and a second magnetic sheet that cooperates with the first magnetic sheet is fixedly installed on the top wall of the maintenance box. The magnetic attraction between the first magnetic sheet and the second magnetic sheet is greater than the sum of the gravity of the carrier frame, the rotating roller and the sponge ring. The translation component is located on the surface of the cross plate and is connected to the positioning component. When the cross plate moves in the vertical direction, the translation component controls the sponge ring to move synchronously along the surface of the bridge deck body by cooperating with the positioning component. The translation component includes a magnetic block fixedly installed on the bottom end of the carrier frame, a bracket is fixedly installed on the surface of the cross plate, and an electromagnetic block that cooperates with the magnetic block is fixedly installed on one end of the bracket away from the cross plate. The sum of the magnetic attraction between the electromagnetic block and the magnetic block and the gravity of the carrier frame, the rotating roller and the sponge ring is greater than the magnetic attraction between the first magnetic sheet and the second magnetic sheet. The dehydration component is connected to the positioning component. After the sponge ring absorbs water, the dehydration component is used to squeeze and remove water from the sponge ring.

2. The prefabricated bridge deck steam curing device according to claim 1, characterized in that: The clamping member comprises an electric telescopic rod fixedly mounted on the inner side wall of the maintenance box, and a clamping plate cooperating with the bridge deck body is fixedly mounted on the telescopic end of the electric telescopic rod.

3. The prefabricated bridge deck steam curing device according to claim 1, characterized in that: The lifting assembly includes multiple groups of threaded rods rotatably installed between the top wall and the bottom wall of the maintenance box, the threaded rods are respectively threadedly connected to the two ends of the cross plate, and synchronous gear plates are fixedly installed on the surface of the threaded rods. The outer sides of the multiple groups of synchronous gear plates are meshed and connected with synchronous belts. One end of a group of threaded rods extends to the outside of the maintenance box and is connected to a motor.

4. The prefabricated bridge deck steam curing device according to claim 1, characterized in that: The dehydration assembly comprises a squeezing roller rotatably mounted in a supporting frame, the squeezing roller is located below the rotating roller and the sponge ring, and a water collecting box located below the squeezing roller is detachably mounted in the supporting frame.

5. The prefabricated bridge deck steam curing device according to claim 1, characterized in that: Guide blocks are fixedly installed on the two side walls opposite to each other of the support frame, and a guide rod slidably connected to the guide blocks is fixedly installed between the top wall and the bottom wall of the maintenance box.

Images