Cast-in-place beam spraying maintenance device

Abstract

The utility model relates to the technical field of bridge construction, in particular to a cast-in-place beam spraying maintenance device which comprises a spraying mechanism and a water supply device, the spraying mechanism comprises a plurality of spraying pipe sections and a water supply device communicated with the spraying pipe sections, and the spraying pipe sections which are sequentially connected end to end bend and extend along the lower half portion of a beam body. A movable gap is formed between any spraying pipe section and the lower surface of the beam body, and a spraying opening is formed in the side, facing the beam body, of each spraying pipe section; the first moving mechanism comprises guide rails arranged on the edges of the two sides of the beam body and a moving assembly capable of moving along the guide rails, the guide rails extend in the length direction of the beam body, and at least one part of the spraying mechanism is installed on the moving assembly. The scheme is used for overcoming the defect that in the prior art, the cast-in-place beam spraying maintenance difficulty is large, the cast-in-place beam spraying maintenance effect is improved, and the maintenance difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction technical field especially relates to a cast-in-place beam spraying maintenance device. BACKGROUND

[0002] In the field of bridge construction, cast-in-place beam technology is widely adopted due to its adaptability to complex terrain and large-span structures. However, during the maintenance phase after cast-in-place beam construction, how to ensure that the concrete is fully moisturized and avoid early cracking has always been a challenge faced by the industry. Especially in the lower surface of the beam body and the complex structure area, traditional maintenance methods such as manual spraying often fail to achieve the desired effect. This is because manual spraying is limited by the accessibility of the operator and the spraying angle, resulting in uneven distribution of the maintenance liquid, which in turn affects the strength and durability of the concrete.

[0003] In addition, frequent manual intervention not only consumes a large amount of labor and increases construction costs, but also is inefficient, making it difficult to meet the high efficiency requirements of modern bridge construction. In large-scale projects with tight schedules, this inefficient maintenance method may cause the entire project to be delayed, and even lead to subsequent quality problems due to improper maintenance, increasing additional repair costs. SUMMARY

[0004] The utility model provides a cast-in-place beam spraying maintenance device to solve the defect that cast-in-place beam spraying maintenance is difficult in the prior art, realize the effect of improving cast-in-place beam spraying maintenance, and reduce the maintenance difficulty.

[0005] The utility model provides a cast-in-place beam spraying maintenance device, which comprises a spraying mechanism, a plurality of spraying pipe sections, and a water supply device connected to the spraying pipe sections. The plurality of spraying pipe sections are connected end to end and extend along the lower half of the beam body. There is a movable gap between any spraying pipe section and the lower surface of the beam body. The side of the spraying pipe section facing the beam body is provided with a spraying port. The first moving mechanism comprises guide rails arranged on the two side edges of the beam body and a moving assembly capable of moving along the guide rails. The guide rails extend along the length direction of the beam body. At least a part of the spraying mechanism is installed on the moving assembly.

[0006] According to the cast-in-place beam spraying maintenance device provided by the utility model, the water supply device comprises a water tank, a water supply pipe, and a water pump. The water tank is arranged on the beam surface of the beam body. The water supply pipe is connected between the water tank and the spraying pipe section. The water pump is used to pump water in the water tank to the spraying pipe section.

[0007] According to the cast-in-place beam spraying maintenance device provided by the utility model, the water pump is arranged on the water tank. Alternatively, the water pump is arranged on the moving assembly to move along the guide rails with the moving assembly.

[0008] The second moving mechanism is arranged on the bottom of the water tank, so that the water tank can move on the beam surface of the beam body.

[0009] The plurality of nozzles are arranged on the spray pipe section, and the spray opening is located at the end of the nozzle.

[0010] According to the cast-in-place beam spraying maintenance device, the inner diameter size of the nozzle gradually decreases from the connection position with the spray pipe section to the spray opening.

[0011] According to the cast-in-place beam spraying maintenance device, the two ends of the reinforcing rod are connected to the adjacent spray pipe sections, so as to form a triangular support structure.

[0012] According to the cast-in-place beam spraying maintenance device, the adjacent spray pipe sections are connected through the detachable corner connecting piece, and the turning angle of the corner connecting piece is greater than or equal to 90 degrees.

[0013] According to the cast-in-place beam spraying maintenance device, the cross section of the guide rail is in the shape of an I-beam, and the moving assembly comprises a limiting pulley matched with the I-beam-shaped groove on both sides of the guide rail.

[0014] According to the cast-in-place beam spraying maintenance device, the moving assembly comprises a driving motor and a driving wheel matched with the driving motor in transmission, and the driving wheel contacts the upper surface of the guide rail.

[0015] The cast-in-place beam spraying maintenance device provided by the utility model realizes uniform maintenance of the cast-in-place beam body, especially the lower surface, by integrating the spraying mechanism and the moving mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description.

[0017] Figure 1The structure schematic view of the cast-in-place beam spraying maintenance device arranged on the beam body provided by the utility model is shown in figure 1.

[0018] Figure 2 The structure schematic view of the cast-in-place beam spraying maintenance device arranged on the beam body provided by the utility model is shown in figure 2.

[0019] Figure 3 The structure schematic view of the cast-in-place beam spraying maintenance device arranged on the beam body provided by the utility model is shown in figure 2. Figure 2 The local enlarged structure schematic view.

[0020] Figure 4 The structure schematic view of the cast-in-place beam spraying maintenance device arranged on the beam body provided by the utility model is shown in figure 2.

[0021] Figure 5 The structure schematic view of the cast-in-place beam spraying maintenance device arranged on the beam body provided by the utility model is shown in figure 2.

[0022] Reference signs:

[0023] 10, spraying pipe section; 11, movable gap; 12, spraying port; 13, nozzle; 14, reinforcing rod; 20, moving assembly; 21, guide rail; 22, limiting pulley; 23, driving motor; 24, driving wheel; 31, water tank; 32, water supply pipe; 33, water pump. Specific embodiments

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely below by combining with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0025] In the description of the embodiments of the utility model, it needs to be explained that, the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawings, and is only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as the limitation on the embodiments of the utility model, which indicates or implies that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as the limitation on the embodiments of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. It also needs to be explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "setting", "mounting", "connecting" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] The specific embodiments of the cast-in-place beam spraying maintenance device of the utility model will be described below in combination with Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 .

[0027] The utility model provides a cast-in-place beam spraying maintenance device, including spraying mechanism and first mobile mechanism. Spraying mechanism includes a plurality of spraying pipe sections 10 and water supply equipment communicated in spraying pipe section 10, a plurality of spraying pipe sections 10 that are sequentially connected head to tail extend along the lower half portion of the beam body, and there is a movable gap 11 between any spraying pipe section 10 and the lower surface of the beam body, and the side of spraying pipe section 10 towards the beam body is provided with spraying port 12. First mobile mechanism includes guide rail 21 arranged at the both side edges of the beam body and mobile assembly 20 capable of moving along guide rail 21, and guide rail 21 extends along the length direction of the beam body, and at least a part of spraying mechanism is installed in mobile assembly 20.

[0028] Specifically, the spraying mechanism is composed of a plurality of spraying pipe sections 10, which can extend and bend according to the shape of the beam body to cover the lower surface of the beam body. Each spraying pipe section 10 is provided with a spraying port 12, which can directly spray maintenance liquid (such as water) to the beam body. Since the spraying pipe section 10 and the lower surface of the beam body maintain a certain movable gap 11, interference or collision between the beam body and the spraying pipe section 10 can be prevented during movement.

[0029] The first moving mechanism comprises a guide rail 21 and a moving assembly 20, the guide rail 21 is arranged on the two side edges of the beam body along the length direction of the beam body, and the moving assembly 20 can freely move on the guide rail 21. At least a part of the spraying mechanism is installed on the moving assembly 20, which means that the spray pipe section 10 can move along with the moving assembly 20 in the length direction of the beam body, so as to realize full-coverage spraying of the lower surface of the whole beam body.

[0030] By combining the spraying mechanism with the moving mechanism, the efficiency of the spraying process is realized, the dependence on manual operation is reduced, the labor cost is reduced, and the unevenness and omission problems of manual spraying are avoided.

[0031] In the actual construction site, the cast-in-place beam spraying maintenance device of the utility model shows an efficient and convenient operation mode. The device is set to automatically start every fixed time (for example, every 2 hours), walk along the preset path and perform spraying operation, ensure that the surface of the beam body is continuously kept in a wet state, effectively promote the uniform hardening of the concrete, and avoid the risk of cracking.

[0032] Preferably, the moving assembly 20 can be equipped with a traction device or a moving driving device installed on the guide rail 21 to realize autonomous travel. When the maintenance task of the current beam body is completed, the components such as steel pipes therein can be quickly removed and reassembled for repeated use at a new cast-in-place beam position. The spray pipe section 10 is preferably a steel pipe with an inner diameter greater than or equal to 25 mm to meet the water spraying demand.

[0033] According to the cast-in-place beam spraying maintenance device provided by the utility model, the water supply equipment preferably comprises a water tank 31, a water supply pipe 32 and a water pump 33; the water tank 31 is arranged on the beam surface of the beam body, the water supply pipe 32 is connected between the water tank 31 and the spray pipe section 10, and the water pump 33 is used for pumping water in the water tank 31 to the spray pipe section 10. Among them, the water tank 31 is used as a water source storage unit. The water supply pipe 32 plays a role in connecting the water tank 31 and the spray pipe section 10, ensuring that the water flow can be smoothly delivered from the water tank 31 to the spray pipe section 10. The water pump 33 is a power source, responsible for pumping and pressurizing the water in the water tank 31, and then delivering it to the spray pipe section 10 through the water supply pipe 32. By adjusting the power and flow control of the water pump 33, the intensity and range of spraying can be adjusted.

[0034] According to the cast-in-place beam spraying maintenance device provided by the utility model, the water pump 33 is arranged on the water tank 31; or, the water pump 33 is arranged on the moving assembly 20 to be able to move along with the moving assembly 20 along the guide rail 21. The two schemes have their own advantages, and the specific selection depends on the specific size of the cast-in-place beam, the maintenance demand and the construction conditions on site. Among them, the water pump 33 is installed on the moving assembly 20, so that the water pump 33 can move along with the moving assembly 20 along the guide rail 21, which is beneficial to avoid the pressure loss and leakage problems that long-distance pipes may bring.

[0035] The water tank 31 can be fixedly arranged, and the length of the water supply pipe 32 covers the moving range of the moving assembly 20, or the water tank 31 can also be arranged to be capable of walking on the beam surface. According to the cast-in-place beam spraying maintenance device provided by the utility model, the bottom of the water tank 31 is provided with a second moving mechanism, so that the water tank 31 can move on the beam surface of the beam body. Specifically, the second moving mechanism is installed at the bottom of the water tank 31, allowing the water tank 31 to move on the beam surface, and is suitable for long-span beam bodies or scenes where the position of the water tank 31 needs to be frequently adjusted. The moving water tank 31 can follow the progress of the spraying maintenance work, adjust the position in real time, shorten the length of the water supply pipe 32, reduce the fluid resistance, and improve the water supply efficiency. At the same time, the moving water tank 31 can more flexibly cope with different shapes and construction conditions of the beam body, and ensure the uniformity and comprehensiveness of the spraying maintenance.

[0036] The second moving mechanism can have various specific embodiments to adapt to different application scenarios and working environments. For example, an electric wheel type moving mechanism using a wheel driven by an electric motor as a moving unit, a track type moving mechanism allowing the water tank 31 to move on a pre-laid track by installing a pulley or a sliding block at the bottom of the water tank 31, and the like.

[0037] According to the cast-in-place beam spraying maintenance device provided by the utility model, a plurality of nozzles 13 are arranged on the spraying pipe section 10, and the spraying port 12 is located at the end of the nozzle 13. The arrangement of the nozzle 13 allows the direction of the jet flow to be accurately controlled, ensuring that the maintenance liquid can be directly sprayed to the specified position of the beam body, especially the lower surface and the corner which is difficult to reach. In this way, the uniformity and coverage of the spraying can be improved, the spraying blind area can be reduced, and the maintenance effect can be enhanced.

[0038] Further, according to the cast-in-place beam spraying maintenance device provided by the utility model, the inner diameter of the nozzle 13 gradually decreases from the connection position with the spraying pipe section 10 to the spraying port 12. Based on the Bernoulli principle, the nozzle 13 with a gradually decreasing inner diameter can accelerate the speed of the fluid passing through the nozzle 13. Therefore, the maintenance liquid will obtain a higher spraying speed when passing through the nozzle 13, ensuring the spraying coverage and spraying intensity. The reduced inner diameter forms fine droplets at the spraying port 12, which helps to improve the atomization effect of the sprayed maintenance liquid, so as to be more uniformly distributed on the surface of the beam body.

[0039] According to the cast-in-place beam spraying maintenance device, the reinforcing rod 14 is arranged on the spraying pipe section 10, and the two ends of the reinforcing rod 14 are connected to the adjacent spraying pipe sections 10 to form a triangular support structure. The reinforcing rod 14 enhances the overall rigidity of the spraying pipe section 10, and the spraying pipe section 10 can maintain its shape even when being bent and extended under a complex beam shape. Compared with simply increasing the wall thickness of the spraying pipe section 10 to improve the strength, the mode of using the reinforcing rod 14 is more economical and efficient, and can significantly improve the structural stability without significantly increasing the material cost.

[0040] According to the cast-in-place beam spraying maintenance device, the adjacent spraying pipe sections 10 are connected through detachable corner connecting pieces; and the turning angle of the corner connecting piece is greater than or equal to 90 degrees. The detachable corner connecting piece makes the assembly and disassembly of the spraying pipe section 10 simple and fast, facilitates the transfer and rearrangement between different construction sites, improves the universality of the device, and facilitates maintenance and component replacement. The corner connecting piece is preferably made of high-strength material to ensure the structural strength of the spraying pipe section 10 at the turning part and avoid deformation or leakage caused by internal water pressure. The detachable connection mode of the corner connecting piece can be a conventional mode such as screw connection, buckle connection, or preferably a quick-release structure combined with buckles, pins, threads and other mechanisms.

[0041] According to the cast-in-place beam spraying maintenance device, the cross section of the guide rail 21 is preferably in the shape of an I-beam; and the moving assembly 20 preferably comprises a limiting pulley 22 matched with the I-beam-shaped grooves on both sides of the guide rail 21. The I-beam-shaped guide rail 21 has high structural stability and can bear large loads and external forces to ensure the stability and safety of the moving assembly 20 during movement. The grooves on both sides of the I-beam-shaped guide rail 21 are matched with the limiting pulley 22 on the moving assembly 20 to form an effective guiding and limiting system. The limiting pulley 22 rolls in the groove to limit the lateral displacement of the moving assembly 20, ensures that it can only move along the predetermined track of the guide rail 21, avoids deviation and shaking, and improves the accuracy and stability of movement.

[0042] Further, according to the cast-in-place beam spraying maintenance device, the moving assembly 20 preferably comprises a driving motor 23 and a driving wheel 24 in transmission cooperation with the driving motor 23; the driving wheel 24 is in contact with the upper surface of the guide rail 21. The driving wheel 24 is directly in contact with the upper surface of the guide rail 21, and through the rotation of the motor, the driving wheel 24 generates a friction force on the guide rail 21, converting the rotary motion of the motor into the linear movement of the device. In order to realize accurate movement control, the driving motor 23 is usually equipped with an electronic controller, which can adjust the rotating speed and direction of the motor according to the preset program or operation instruction, so as to control the moving speed and direction of the spraying maintenance device, and ensure the accuracy and uniformity of the spraying process. Through the cooperation of the driving motor 23 and the driving wheel 24, the cast-in-place beam spraying maintenance device of the utility model can realize automatic and controllable movement, not only improving the efficiency and quality of maintenance operation, but also reducing the labor intensity of manual operation.

[0043] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "way", "specific way", or "some ways" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or way are included in at least one embodiment or way of the utility model embodiments. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or way. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or ways in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or characteristics of the different embodiments or ways described in the present specification without contradiction.

[0044] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the utility model embodiments.

Claims

1. A cast-in-place beam spray curing device, characterized by, The application relates to a spraying mechanism for a bridge deck, comprising a plurality of spraying pipe sections (10) and water supply equipment connected with the spraying pipe sections (10), the spraying pipe sections (10) are sequentially connected end to end and extend along the lower half of the bridge deck, and there is a movable gap (11) between any spraying pipe section (10) and the lower surface of the bridge deck, and the spraying pipe section (10) is provided with a spraying opening (12) on one side of the bridge deck. A first moving mechanism comprises guide rails (21) arranged on the two side edges of the bridge deck and a moving assembly (20) capable of moving along the guide rails (21), the guide rails (21) extend along the length direction of the bridge deck, and at least a part of the spraying mechanism is installed on the moving assembly (20). The water supply equipment comprises a water tank (31), a water supply pipe (32) and a water pump (33).

2. The as-cast beam spray and cure apparatus of claim 1, wherein, The water tank (31) is arranged on the deck surface of the bridge deck, the water supply pipe (32) is connected between the water tank (31) and the spraying pipe section (10), and the water pump (33) is used for pumping water in the water tank (31) to the spraying pipe section (10). The water pump (33) is arranged on the water tank (31).

3. The as-cast beam spray and cure apparatus of claim 2, wherein, Alternatively, the water pump (33) is arranged on the moving assembly (20) and can move along the guide rails (21) with the moving assembly (20). A second moving mechanism is arranged on the bottom of the water tank (31) to enable the water tank (31) to move on the deck surface of the bridge deck.

4. The as-cast beam spray and cure apparatus of claim 2, wherein, A plurality of nozzles (13) are arranged on the spraying pipe section (10), and the spraying opening (12) is located at the end of the nozzles (13).

5. The as-cast beam spray and cure apparatus of claim 1, wherein, The inner diameter of the nozzles (13) gradually decreases from the connection position of the nozzles (13) and the spraying pipe section (10) to the spraying opening (12).

6. The as-cast beam spray and cure apparatus of claim 5, wherein, A reinforcing rod (14) is arranged on the spraying pipe section (10).

7. The in-situ cast beam spray curing apparatus of claim 1, wherein, The two ends of the reinforcing rod (14) are connected to adjacent spraying pipe sections (10) to form a triangular support structure. Adjacent spraying pipe sections (10) are connected through detachable corner connecting pieces.

8. The as-cast beam spray and cure apparatus of claim 1, wherein, The turning angle of the corner connecting piece is greater than or equal to 90 degrees. The cross section of the guide rail (21) is in the shape of an I-beam.

9. The as-cast beam spray and cure apparatus of any one of claims 1-8, wherein, The moving assembly (20) comprises a limiting pulley (22) matched with the I-beam-shaped grooves on the two sides of the guide rail (21). The moving assembly (20) comprises a driving motor (23) and a driving wheel (24) in transmission cooperation with the driving motor (23).

10. The as-cast beam spray and cure apparatus of claim 9, wherein, The driving wheel (24) contacts the upper surface of the guide rail (21). ​

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