Dust falling equipment for cast-in-place box girder construction

Abstract

The invention relates to the technical field of construction dust falling equipment, and discloses cast-in-place box girder construction dust falling equipment which can adapt to construction spaces of different box girder sizes and dynamically adjust the coverage range according to the dust concentration. Comprising a mounting part, an annular pipe is arranged on the mounting part, and a first connector and a second connector are arranged on the annular pipe; the second joint is connected with a water conduit; a plurality of groups of atomizing spray pipe parts are circumferentially distributed and hinged to the annular pipe, and the plurality of groups of atomizing spray pipe parts are jointly connected with a driving part arranged on the mounting part, so that the driving part operates to enable the plurality of groups of atomizing spray pipe parts to jointly form an umbrella-shaped structure which can be opened outwards; the water diversion pipe is connected with an atomization extension part, the atomization extension part comprises a plurality of atomization spray seats, the atomization spray seats can be overlapped up and down, the two atomization spray seats are connected end to end through a hose, and the hose is connected with the atomization spray seats through a rotary joint, so that the atomization spray seats can be unfolded linearly to form a mist curtain barrier.

Description

Technical Field

[0001] This invention relates to the field of construction dust suppression equipment technology, and more specifically, to a dust suppression device for cast-in-place box girder construction. Background Technology

[0002] The construction of cast-in-place box girders involves multiple processes, including concrete mixing, rebar cutting, and formwork grinding, which generate a large amount of dust. This dust not only reduces air quality in the construction area and harms the respiratory health of construction workers, but it can also adhere to the surface of construction equipment, affecting its service life, and even pollute the surrounding environment due to dust dispersion. Therefore, effective dust control measures are an indispensable part of cast-in-place box girder construction. Currently, commonly used dust control equipment in cast-in-place box girder construction mainly includes fixed atomizing nozzles and mobile sprayers. However, existing equipment has the following shortcomings: On the one hand, the coverage is limited: fixed atomizing nozzles are usually fixed in a specific position, and the radial spray range is fixed and narrow, making it difficult to adapt to the construction space of box girders with different spans and heights. It is difficult to meet the all-round dust suppression needs of large-sized box girders. Moreover, the spray range is mostly fixed and cannot be dynamically adjusted according to the changes in dust concentration or the structural size of the box girder during the construction stage. It has poor adaptability in different stages such as box girder casting and curing.

[0003] On the other hand, the dust suppression methods are limited: most equipment can only achieve localized dust suppression by spraying, lacking the coordinated combination of radial wide-area coverage and directional interception, making it difficult to effectively prevent dust from spreading outside the construction area; some dust suppression equipment with extended functions have rigid connection structures that cannot be flexibly extended or retracted, resulting in large equipment size that occupies a lot of space during transportation and storage, which greatly reduces the convenience of use, especially when the space on the construction site is limited. Summary of the Invention

[0004] The purpose of this invention is to solve the problems mentioned in the background art, and to propose a dust suppression device for cast-in-place box girder construction.

[0005] The technical solution adopted by this invention to solve its technical problem is: A dust suppression device for cast-in-place box girder construction includes an installation section with an annular pipe. The annular pipe has a first connector and a second connector. The first connector connects to an external water pump to inject water into the annular pipe, and the second connector connects to a water inlet pipe. Several sets of atomizing spray nozzles are circumferentially distributed and hinged on the annular pipe, and these nozzles are connected to a drive unit on the installation section. The drive unit's operation causes the atomizing spray nozzles to collectively form an outward-opening umbrella-like structure. The water inlet pipe connects to an atomizing extension section, which includes several atomizing spray seats that can be stacked vertically. Two atomizing spray seats are connected end-to-end by a flexible hose, and the hose and spray seat are connected by a rotary joint, allowing the atomizing spray seats to extend in a straight line, forming a fog curtain barrier.

[0006] Furthermore, the above solution includes a tailstock for mounting on a mobile vehicle body, and the tailstock is connected to an annular tube by multiple support rods arranged in a radiating manner.

[0007] Furthermore, the above solution includes a straight pipe with both ends closed and one end hinged to an annular pipe, and the other end connected to a drive unit. The straight pipe is connected to the annular pipe through a water guide pipe, and several atomizing nozzles are installed along the length of the straight pipe.

[0008] Furthermore, the above solution includes a telescopic cylinder, which is horizontally mounted on the tailstock. The telescopic cylinder is connected to a fixed seat, and the fixed seat is hinged with connecting rods that are the same number as the straight tubes and are hinged one by one, so that the telescopic cylinder extends to cause several straight tubes to unfold outward together.

[0009] Furthermore, the above solution includes a water storage box, a positioning groove at the bottom of the water storage box, a positioning post at the top for connecting to the positioning groove, and a groove at the top, in which several atomizing nozzles with their tips not exceeding the surface of the water storage box are installed.

[0010] Furthermore, the telescopic cylinder described above is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.

[0011] Furthermore, the above solution also includes a swinging part, with the tail seat disposed on the swinging part, so that the umbrella-shaped structure can swing back and forth.

[0012] Furthermore, the above solution includes a base, a vertical plate on the base, a rotating roller horizontally rotatably connected to the vertical plate, a support plate on the rotating roller, a tracking pin and a tailstock mounted on the support plate, a bracket on the vertical plate, a drive motor mounted on the bracket, a guide roller connected to the drive motor, the guide roller being located below the tracking pin, and an arc-shaped track groove on the guide roller for engaging the tracking pin, so that the rotation of the guide roller drives the tracking pin to move along the direction of the arc-shaped track groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. The device of this invention distributes water supply to the atomizing nozzle section and the atomizing extension section through an annular pipe, forming a synergistic dust suppression mode of umbrella-shaped structure + fog curtain barrier; wherein, the annularly distributed atomizing nozzle section can be unfolded into an umbrella-shaped structure under the action of the driving unit, significantly expanding the radial dust suppression range and solving the problem of limited coverage of traditional fixed nozzles; at the same time, after the several atomizing nozzles of the atomizing extension section are unfolded, they form a straight fog curtain barrier, which can directionally intercept dust diffusion. The two work together to achieve a three-dimensional dust suppression effect of all-round coverage + directional interception, greatly improving the dust suppression efficiency. 2. The unfolding angle of the atomizing nozzle can be flexibly controlled by the drive unit, and can be dynamically adjusted from the retracted state to the fully open state. It can adapt to the construction space of box girders of different sizes, such as the compact space of small span box girders or the open area of ​​large span box girders. It can also adjust the coverage range according to the real-time dust concentration. For example, when the dust concentration is high, the unfolding angle can be expanded, and when the concentration is low, the range can be reduced to save water resources. Furthermore, it can be retracted under the action of the drive unit to reduce the space occupation when not in use.

[0014] 3. The atomizing spray base of the atomizing extension can be stacked vertically to achieve storage, which significantly reduces the storage volume of the equipment, making it easy to transport and store. It can be deployed in a straight line through the connection of a hose and a rotary joint. During the deployment process, the angle can be flexibly adjusted with the help of the rotary joint to adapt to complex environments such as the terrain and support distribution of the construction area. For example, it can be arranged along the edge of the box girder or next to the support to meet the directional dust suppression needs of different construction stages. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the installation position of the atomizing nozzle. Figure 3 This is a schematic diagram showing the installation location of the drive unit; Figure 4 This is a schematic diagram of the overall structure of the atomization extension section; Figure 5 This is a schematic diagram of the overall structure of the atomizing spray holder; Figure 6 This is a schematic diagram showing the installation position of the swinging part; Figure 7 This is a schematic diagram of the overall structure of the swinging part; Figure 8 A schematic diagram showing the fit between the tracking pin and the arc-shaped track groove; The components are as follows: 1. Mounting section; 11. Tailstock; 12. Support rod; 2. Annular pipe; 21. First connector; 22. Second connector; 23. Water inlet pipe; 3. Atomizing spray pipe section; 31. Straight pipe; 32. Water guide pipe; 33. Atomizing nozzle; 4. Drive section; 41. Telescopic cylinder; 42. Fixed base; 43. Connecting rod; 5. Atomizing extension section; 51. Atomizing spray base; 511. Water storage box; 512. Positioning groove; 513. Positioning column; 514. Groove; 515. Atomizing nozzle; 52. Hose; 53. Rotary joint; 6. Swing section; 61. Base; 62. Vertical plate; 63. Rotating roller; 64. Support plate; 65. Tracking pin; 66. Bracket; 67. Drive motor; 68. Guide roller; 681. Arc-shaped track groove. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The present invention will be further described with reference to the accompanying drawings and embodiments: See attached document Figure 1 - Appendix Figure 4 As shown, a dust suppression device for cast-in-place box girder construction includes an installation part 1, an annular pipe 2 on the installation part 1, and a first connector 21 and a second connector 22 on the annular pipe 2. In actual application, the first connector 21 is used to connect to an external water pumping device to inject water into the annular pipe 2, and the second connector 22 is connected to a water inlet pipe 23. The annular tube 2 is circumferentially distributed and hinged with several sets of atomizing nozzle sections 3, and the several sets of atomizing nozzle sections 3 are connected to the drive section 4 provided on the mounting section 1, so that the operation of the drive section 4 can cause the several sets of atomizing nozzle sections 3 to form an umbrella-shaped structure that can open outward, thereby effectively expanding the dust suppression range. In addition, the water pipe 23 is connected to the atomizing extension section 5, which includes an atomizing spray base 51. There are several atomizing spray bases 51 that can be stacked vertically. Two atomizing spray bases 51 are connected end to end by a hose 52. The hose 52 and the atomizing spray base 51 are connected by a rotary joint 53 so that the several atomizing spray bases 51 can be extended in a straight line to form a fog curtain barrier.

[0017] The dust suppression equipment for cast-in-place box girder construction uses the installation unit 1 as a carrier. It receives external water supply through a ring pipe 2 and distributes it to two parts: one is a ring-shaped atomizing spray nozzle unit 3 linked to the drive unit 4, which can unfold into an umbrella shape to expand the radial dust suppression range; the other is an atomizing extension unit 5 connected via a water inlet pipe 23, consisting of atomizing spray bases 51 that can be stacked and stored and connected via hoses 52 and rotary joints 53. When unfolded, it forms a straight mist curtain barrier to intercept dust. In use, the umbrella-shaped structure and the mist curtain barrier work together to achieve highly efficient dust suppression combining all-round coverage and directional interception. The umbrella-shaped structure has an adjustable unfolding angle (which can be flexibly controlled by the drive unit 4, from folding to fully opening, adapting to construction spaces of different box girder sizes, and dynamically adjusting the coverage range according to dust concentration). The atomizing spray base 51 can be flexibly unfolded and retracted (switching between overlapping storage and straight unfolding, saving transportation and storage space when folded, and adapting to terrain or construction needs when unfolded through the rotary joint 53 and hose 52, such as being arranged along the edge of the box girder or next to the support 66, with extremely high flexibility). The equipment can adapt to complex construction scenarios, taking into account dust suppression range, flexibility and practicality.

[0018] See attached document Figure 2 As shown, in the above scheme, the mounting part 1 includes a tailstock 11. In practical applications, the tailstock 11 can be mounted on a mobile vehicle. The tailstock 11 is connected to the annular pipe 2 via multiple support rods 12, which are arranged in a radiating pattern. During implementation, the mobile vehicle enables the overall movement of the equipment. Utilizing the structural characteristics of the radiating support rods 12, the weight of the annular pipe 2 and related components is distributed and transferred to the tailstock 11, thereby ensuring the stability of the annular pipe 2 when bearing the water supply and atomizing nozzle 3.

[0019] See attached document Figure 2 and 3 As shown, in the above scheme, the atomizing nozzle section 3 includes a straight pipe 31, which is closed at both ends and hinged at one end to the annular pipe 2, and connected to the drive section 4 at the other end. The straight pipe 31 is connected to the annular pipe 2 through a water guide pipe 32, and several atomizing nozzles 33 are installed along its length. In implementation, the water in the annular pipe 2 enters the straight pipe 31 through the water guide pipe 32 and is converted into water mist by the atomizing nozzles 33. At the same time, with the help of the hinged relationship with the annular pipe 2, it unfolds into an umbrella shape together with other atomizing nozzle sections 3 under the action of the drive section 4, expanding the water mist coverage area, which can effectively enhance the dust suppression effect and adapt to the overall large-area dust suppression needs of the equipment.

[0020] See attached document Figure 2 and attached Figure 3As shown, in the above scheme, the drive unit 4 includes a telescopic cylinder 41, which is horizontally arranged on the tailstock 11 and uses an electric cylinder, hydraulic cylinder or pneumatic cylinder in the prior art as the power source. The telescopic cylinder 41 is connected to a fixed seat 42, and the fixed seat 42 is hinged with connecting rods 43 that are the same number as the straight tubes 31 and are hinged one by one, so that the telescopic cylinder 41 extends to cause several straight tubes 31 to unfold outward together.

[0021] During implementation, the telescopic cylinder 41 extends and retracts, driving the fixed seat 42 to move. Power is transmitted through the connecting rod 43, causing the straight pipe 31, which is hinged to the connecting rod 43, to rotate synchronously around the hinge point of the annular pipe 2, thereby allowing several atomizing nozzle sections 3 to jointly form an outwardly opening umbrella-shaped structure.

[0022] See attached document Figure 4 and attached Figure 5 As shown, the atomizing spray holder 51 includes a water storage box 511. The bottom of the water storage box 511 is provided with a positioning groove 512, and the top is provided with a positioning post 513 for connecting to the positioning groove 512. The top is also provided with a groove 514, and a number of atomizing nozzles 515 with their tops not exceeding the surface of the water storage box 511 are installed in the groove 514.

[0023] During implementation, the water storage box 511 is placed in an overlapping manner through the cooperation of the positioning groove 512 and the positioning column 513. When unfolded, it receives water through the hose 52 and the rotary joint 53 and sprays it out by the atomizing nozzle 515 to form a water mist. The non-protruding design of the atomizing nozzle 515 can avoid damage when stacked. With the hose 52 and the rotary joint 53, it can be flexibly unfolded to form a fog curtain barrier, which enhances the spatial adaptability of the equipment and the practicality of the dust suppression barrier.

[0024] Furthermore, considering the effectiveness of the equipment, please refer to the appendix. Figure 6-8 As shown, a dust suppression device for cast-in-place box girder construction also includes a swinging part 6, with a tailstock 11 disposed on the swinging part 6 so that the umbrella-shaped structure can swing back and forth.

[0025] During implementation, the device's own operation drives the tailstock 11 and its components, including the annular pipe 2 and atomizing nozzle 3, to swing back and forth. This causes the umbrella-shaped structure to swing, allowing the water mist sprayed from the atomizing nozzle 3 to cover a larger area on the left and right, further expanding the dust suppression range. The swinging function enhances the device's dynamic dust suppression capability, extending the original dust suppression range of the umbrella-shaped structure in the left and right directions, thus more comprehensively covering the construction area. Furthermore, in conjunction with other components of the device, it improves the device's adaptability to complex construction environments, ensuring superior dust suppression performance.

[0026] Specifically, the swinging part 6 includes a base 61, on which a vertical plate 62 is provided. A rotating roller 63 is horizontally rotatably connected to the vertical plate 62. A support plate 64 is provided on the rotating roller 63. A tracking pin 65 and a tailstock 11 are installed on the support plate 64. In addition, a bracket 66 is provided on the vertical plate 62. A drive motor 67 is installed on the bracket 66. The drive motor 67 is connected to a guide roller 68. The guide roller 68 is located below the tracking pin 65. The guide roller 68 is provided with an arc-shaped track groove 681 for connecting the tracking pin 65. This allows the drive motor 67 to operate, causing the guide roller 68 to rotate and drive the tracking pin 65 to move along the arc-shaped track groove 681, enabling the tailstock 11 to swing back and forth.

[0027] During implementation, the drive motor 67 operates to drive the guide roller 68 to rotate. The guide roller 68 drives the tracking pin 65 to move through the arc-shaped track groove 681, which in turn causes the support plate 64 to rotate around the rotating roller 63, realizing the left and right reciprocating swing of the tailstock 11. Ultimately, this achieves the left and right reciprocating swing of the umbrella-shaped structure, which can significantly expand the dust suppression range of the umbrella-shaped structure, allowing the equipment to more comprehensively cover the construction area, improve the dust suppression effect, and adapt to complex construction environments.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust suppression device for cast-in-place box girder construction, characterized in that: It includes an installation part (1), an annular pipe (2) is provided on the installation part (1), and a first connector (21) and a second connector (22) are respectively provided on the annular pipe (2). The first connector (21) is used to connect to an external water pumping equipment to inject water into the annular pipe (2), and the second connector (22) is connected to a water inlet pipe (23). The annular tube (2) is circumferentially distributed and hinged with several sets of atomizing nozzles (3), and the several sets of atomizing nozzles (3) are connected to the drive unit (4) provided on the mounting part (1) so that the operation of the drive unit (4) can enable the several sets of atomizing nozzles (3) to form an umbrella-shaped structure that can open outwards. The water pipe (23) is connected to the atomizing extension section (5), which includes atomizing spray bases (51). There are several atomizing spray bases (51) that can be stacked vertically. Two atomizing spray bases (51) are connected end to end by a hose (52), and the hose (52) and the atomizing spray base (51) are connected by a rotary joint (53) so that several atomizing spray bases (51) can be extended in a straight line to form a fog curtain barrier.

2. The dust suppression equipment for cast-in-place box girder construction according to claim 1, characterized in that: The mounting part (1) includes a tailstock (11); The tailstock (11) is used to be installed on the mobile vehicle body, and the tailstock (11) is connected to the annular tube (2) by multiple support rods (12), and the multiple support rods (12) are arranged in a radiating manner.

3. The dust suppression equipment for cast-in-place box girder construction according to claim 2, characterized in that: The atomizing nozzle section (3) includes a straight pipe (31); The straight pipe (31) is closed at both ends and one end is hinged to the annular pipe (2), and the other end is connected to the drive unit (4). The straight pipe (31) is connected to the annular pipe (2) through the water guide pipe (32), and several atomizing nozzles (33) are installed on the straight pipe (31) along its length.

4. A dust suppression device for cast-in-place box girder construction according to claim 3, characterized in that: The drive unit (4) includes a telescopic cylinder (41); The telescopic cylinder (41) is horizontally set on the tailstock (11) and is connected to a fixed seat (42). The fixed seat (42) is hinged with connecting rods (43) that are the same number as the straight tubes (31) and are hinged one by one, so that the telescopic cylinder (41) can extend and cause several straight tubes (31) to unfold outward together.

5. A dust suppression device for cast-in-place box girder construction according to claim 4, characterized in that: The atomizing nozzle (51) includes a water storage box (511); The bottom of the water storage box (511) is provided with a positioning groove (512), the top is provided with a positioning post (513) for connecting to the positioning groove (512), and the top is also provided with a groove (514). Several atomizing nozzles (515) with their tops not exceeding the surface of the water storage box (511) are installed in the groove (514).

6. A dust suppression device for cast-in-place box girder construction according to claim 5, characterized in that: The telescopic cylinder (41) is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.

7. A dust suppression device for cast-in-place box girder construction according to any one of claims 1-6, characterized in that: It also includes a swinging part (6); The tailstock (11) is mounted on the swing part (6) so that the umbrella-shaped structure can swing back and forth.

8. A dust suppression device for cast-in-place box girder construction according to claim 7, characterized in that: The swinging part (6) includes a base (61); A vertical plate (62) is provided on the base (61). A rotating roller (63) is horizontally rotatably connected to the vertical plate (62). A support plate (64) is provided on the rotating roller (63). A tracking pin (65) and a tailstock (11) are installed on the support plate (64). A bracket (66) is also provided on the vertical plate (62). A drive motor (67) is installed on the bracket (66). A guide roller (68) is connected to the drive motor (67). The guide roller (68) is located below the tracking pin (65). An arc-shaped track groove (681) is provided on the guide roller (68) for connecting the tracking pin (65), so that the guide roller (68) rotates and drives the tracking pin (65) to move along the arc-shaped track groove (681).

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