Precast beam and slab maintenance device

Abstract

The utility model discloses a precast beam and slab maintenance device, which belongs to the related technical field of precast bridges and comprises a placing frame, a movable spraying maintenance assembly and a water absorption covering assembly. The placing frame has corresponding supporting force, and a supporting platform is arranged at the upper end and used for corresponding supporting and placing operation. The movable spraying maintenance assembly comprises movable supporting assemblies which are arranged on the two sides of the supporting platform and conduct corresponding moving and supporting operation. The support is connected with the movable supporting assembly and has corresponding supporting force; the spraying assembly is arranged on the bracket and is used for carrying out corresponding spraying maintenance operation; the water absorption covering assembly is arranged at one end of the supporting platform and can be unfolded and rolled in the spraying operation direction, manual work is replaced, spraying dead angles are reduced, the maintenance efficiency is improved, water is continuously preserved for the beam slab, and the maintenance effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to prefabricated bridges, and in particular relates to a prefabricated beam and slab maintenance device. Background Art

[0002] Precast beams and slabs are prefabricated in factories and then transported to the construction site for installation and fixation according to the design requirements. In the construction process of simply supported beam system bridges, the quality of precast beams and slabs plays a vital role in the stability of the overall structure of the simply supported beam bridge.

[0003] Precast beams and slabs need to be sprayed and cured before leaving the factory. The basic requirement for beam and slab curing is to maintain sufficient humidity after the concrete is poured to prevent early cracks and roughness. When spraying, the spraying operation is generally carried out along the length direction of the precast beam to make the spraying as uniform as possible. However, if the spraying is directly onto the precast beams and slabs, the water splashes to a large extent, reducing the effective amount of water contacting the precast beams and causing waste. In addition, the spray water is inconvenient to recycle. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a prefabricated beam and slab maintenance device, which solves the problems in the background technology.

[0005] The technical solution adopted by the utility model is as follows: a prefabricated beam and slab maintenance device, including a placement rack, a mobile spraying maintenance component and a water absorption and covering component; the placement rack has a corresponding supporting force, and a supporting platform is arranged at the upper end for corresponding supporting and placing operations; the mobile spraying maintenance component includes a mobile supporting component, which is arranged on both sides of the supporting platform to perform corresponding moving and supporting operations; a bracket, which is connected to the mobile supporting component and has a corresponding supporting force; a spraying component, which is arranged on the bracket to perform corresponding spraying and maintenance operations; the water absorption and covering component is arranged at one end of the supporting platform and can be unfolded and reeled along the spraying operation direction.

[0006] Furthermore, the water-absorbing covering assembly includes a winding roller rotatably mounted at one end of the supporting platform; a water-absorbing heat-insulating component, one end of which is wound on the winding roller and the other end is connected to a fixed shaft; a supporting limit component is arranged on the bracket, and the limit components are connected at both ends of the fixed shaft, which moves with the bracket to unfold the corresponding heat-insulating component.

[0007] Furthermore, the interior of the support platform is hollow to form a recovery chamber, a recovery port is provided at the top, and the bottom wall of the recovery chamber is inclined to guide the recovered water to a water tank, which is provided at one end of the support platform.

[0008] Furthermore, the spray assembly includes a pressure chamber and a spray head connected to the pressure chamber, the pressure chamber is arranged on a bracket, and the water tank and the pressure chamber are respectively connected to the water inlet end and the water outlet end of the water pump through pipelines.

[0009] Furthermore, the mobile support assembly includes a mobile drive and a support block connected to the mobile drive, the support block is configured to move along the length direction of the support platform, the two side walls of the support platform are respectively equipped with support lower plates, and the support block moves along the support lower plate through the ball bearings at the bottom.

[0010] After adopting the above structure, the beneficial effects of the utility model are as follows: a prefabricated beam and slab maintenance device proposed by the utility model can perform spraying maintenance along the length direction of the beam and slab, replacing manual labor, reducing spraying dead angles, and improving maintenance efficiency. In addition, through the water-absorbing and heat-insulating parts (which can be straw mats) that can be unfolded synchronously with the spraying operation, it can absorb and retain a certain amount of water during spraying and be permeable, so that the water body flows to the beam and slab below, reducing the splashing of water during spraying, and after the water-absorbing and heat-insulating parts are unfolded and laid flat, they can continuously retain water for the beam and slab, thereby improving the maintenance effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0012] Figure 1 This is a schematic diagram of the overall structure of a prefabricated beam and slab maintenance device proposed by the utility model;

[0013] Figure 2 A half-section view of a prefabricated beam and slab maintenance device proposed by the utility model;

[0014] Figure 3 This is a schematic diagram of the overall structure from another angle of the prefabricated beam and slab maintenance device proposed by the utility model.

[0015] In the attached drawings: 1. placement rack, 2. support platform, 3. bracket, 4. winding roller, 5. water absorption and heat insulation part, 6. fixed shaft, 7. recovery chamber, 8. recovery port, 9. water tank, 10. pressure chamber, 11. spray head, 12. driving motor, 13. support block, 14. support lower plate, 15. support screw, 16. limit long rod. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0017] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0018] like Figure 1-3 As shown, a prefabricated beam and slab maintenance device comprises a placement rack 1, a mobile spraying maintenance component and a water absorption covering component; the placement rack 1 has a corresponding supporting force, and a supporting platform 2 is arranged at the upper end for corresponding supporting and placing operations, the inner hollow of the supporting platform 2 forms a recovery chamber 7, and a recovery port 8 is arranged at the top, the inner bottom wall of the recovery chamber 7 is inclined to guide the recovered water to the water tank 9, and the water tank 9 is arranged at one end of the supporting platform 2; wherein the water absorption covering component is arranged at one end of the supporting platform 2, and can be unfolded and reeled in the spraying operation direction; specifically, the water absorption covering component comprises a reeling roller 4 rotatably mounted at one end of the supporting platform 2; a water absorption heat-insulating component 5, one end of which is reeled on the reeling roller 4, and the other end is connected to a fixed shaft 6; a support limiter is arranged on the bracket 3, and the two ends of the fixed shaft 6 are connected to the limiters, which move with the bracket 3 to unfold the corresponding heat-insulating component, and the heat-insulating component can be a straw mat structure woven with straw, which is reeled on the reeling roller 4, When unfolded, it can be laid flat on the beams and slabs. During spraying maintenance, it can absorb and retain a certain amount of moisture. At the same time, it can penetrate water to the beams and slabs below to reduce water splashing. In addition, it can reduce the evaporation rate of water on the surface of the beams and slabs and has a certain thermal insulation effect.

[0019] In some preferred embodiments, the mobile spraying and maintenance assembly includes a mobile support assembly, which is arranged on both sides of the support platform 2 to perform corresponding movement and support operations; a bracket 3, which is connected to the mobile support assembly and has corresponding supporting force; a spraying assembly, which is arranged on the bracket 3 to perform corresponding spraying and maintenance operations; here, preferably, the insulation part is connected to one end of the fixed shaft 6 and the movable support assembly is moved to the end of the support platform 2 away from the winding roller 4, so as to facilitate unfolding and laying on the beam plate.

[0020] Specifically, the spray assembly includes a pressure chamber 10 and a spray head 11 connected to the pressure chamber 10. The pressure chamber 10 is arranged on the bracket 3. The water tank 9 and the pressure chamber 10 are respectively connected to the water inlet and the water outlet of the water pump through pipelines.

[0021] In this example, preferably, the mobile support assembly includes a mobile drive and a support block 13 connected to the mobile drive, the support block 13 is configured to move along the length direction of the support platform 2, and the two side walls of the support platform 2 are respectively equipped with support lower plates 14, and the support block 13 moves along the support lower plate 14 through the ball bearings at the bottom. Here, preferably, the mobile drive includes a support screw 15 and a limit rod 16, which are respectively installed on both sides of the support platform 2, and the support screw 15 is rotatably installed on the corresponding side of the support platform 2. It should be noted that the support screw 15 and the limit rod 16 6 are respectively located above the corresponding supporting lower plates 14, the supporting blocks 13 are respectively movably mounted on the supporting screw 15 and the limiting long rod 16, and the supporting blocks 13 are threadedly connected to the supporting screw 15; the driving motor 12 is installed at the corresponding position of the supporting platform 2, and one end of the supporting screw 15 is fixedly connected to the output end of the driving motor 12. After starting the driving motor 12, the output end of the starting motor rotates to drive the supporting screw 15 to rotate, and the moving block on the supporting screw 15 moves along the length direction of the limiting long rod 16. At this time, the bracket 3 and the spraying assembly on the bracket 3 move with the moving block to change the spraying operation position.

[0022] When in use, an L-shaped limiter is installed on the side wall of the bracket 3, and both ends of the fixed shaft 6 of the insulation piece are placed on the limiters respectively. After starting the driving motor 12, the bracket 3 moves with the moving block, driving the insulation piece to unfold to the other end of the beam plate, and the fixed shaft 6 is removed. The insulation piece is laid flat on the beam plate. The insulation piece can be made of straw curtains, reed mats, sawdust and other materials. For example, sawdust and other materials can be added to the straw curtains to increase the effects of heat preservation, moisture retention and splash prevention during spraying.

[0023] After paving, the water pump can be started, and the water pump is connected to the water tank 9 and the pressure chamber 10 respectively, so that the water in the water tank 9 is pumped into the pressure chamber 10, and then sprayed onto the insulation component through the spray head 11. The water body penetrates the insulation component and flows to the beam and slab; the excess water will be blocked on the support platform 2 by the enclosure at the edge of the support platform 2, and enter the recovery chamber 7 through the through hole. A filter net can be set at the connection between the recovery chamber 7 and the water tank 9 to filter impurities in the water body and avoid clogging of the spray head 11.

[0024] After starting the water pump, the drive motor 12 can be started again, and the bracket 3 moves with the moving block, so that the spray head 11 performs spraying maintenance operations along the length direction of the beam and slab.

[0025] Although the embodiments of the utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the scope of protection of the utility model.

Claims

1. A prefabricated beam and slab maintenance device, characterized in that: include: The placement rack has corresponding supporting force, and a supporting platform is arranged on the upper end for corresponding supporting and placing operations; The mobile spraying and maintenance assembly, including the mobile support assembly, is arranged on both sides of the support platform to perform corresponding movement and support operations; The bracket is connected to the mobile support assembly and has a corresponding supporting force; the spraying assembly is arranged on the bracket to perform corresponding spraying maintenance operations; The water-absorbing covering component is arranged at one end of the supporting platform and can be unfolded and reeled in the spraying operation direction.

2. A prefabricated beam and slab maintenance device according to claim 1, characterized in that: The water-absorbing cover assembly includes a reel mounted rotatably on one end of the support platform; The water-absorbing heat-insulating component has one end rolled up on the winding roller and the other end connected to the fixed shaft; a support limiter is arranged on the bracket, and the two ends of the fixed shaft are connected to the limiters, which move with the bracket to unfold the corresponding heat-insulating component.

3. The prefabricated beam and slab maintenance device according to claim 1, characterized in that: The inner hollow of the support platform forms a recovery cavity, and a recovery port is provided at the top. The bottom wall of the recovery cavity is inclined to guide the recovered water to the recovery port. The water tank is arranged at one end of the support platform.

4. A prefabricated beam and slab maintenance device according to claim 3, characterized in that: The spray assembly comprises a pressure chamber and a spray head connected to the pressure chamber. The pressure chamber is arranged on a bracket. The water tank and the pressure chamber are respectively connected to the water inlet end and the water outlet end of the water pump through pipelines.

5. The prefabricated beam and slab maintenance device according to claim 1, characterized in that: The movable support assembly includes a movable drive and a support block connected to the movable drive. The support block is configured to move along the length direction of the support platform. The two side walls of the support platform are respectively equipped with support lower plates. The support block moves along the support lower plate through the ball bearings at the bottom.

Images