Surface treatment device for spraying ultra-high performance concrete reinforced structure

Abstract

The utility model discloses a surface treatment device for spraying an ultra-high performance concrete reinforcing structure, which comprises an outer frame arranged on the periphery of the reinforcing structure and a mounting seat movably arranged on the outer frame, and a first driving mechanism is arranged on the outer frame and used for driving the mounting seat to move vertically. A second driving mechanism is arranged on the outer frame and used for driving the mounting base to move in the circumferential direction, a plastering device or a spraying device is detachably arranged on the mounting base, the plastering device comprises a plastering ruler and a water mist spray head, and the spraying device comprises a spraying spray head. When the plastering device is mounted on the mounting seat which can move in the circumferential direction and the vertical direction, timely trowelling treatment of an ultra-high performance concrete spraying surface can be realized, and when the spraying device is mounted, a decoration coating can be sprayed on the surface of the troweled spraying surface to form a spraying surface protection layer, so that the appearance quality of the spraying surface is greatly improved, and the spraying quality of the ultra-high performance concrete spraying surface is improved. And the problem of corrosion caused by direct contact between the steel fibers and the external environment can be improved.

Description

Technical Field

[0001] The utility model relates to sprayed ultra-high performance concrete, in particular to a surface treatment device for spraying ultra-high performance concrete reinforcement structure. Background Art

[0002] Ultra-high performance concrete has ultra-high mechanical properties, toughness and durability. It has been widely used in new engineering structures such as bridges, rail transit, and municipal engineering, and is mainly constructed in molded or prefabricated structures, which significantly improves the service life and weather resistance of transportation infrastructure. With the rapid development of my country's economy, urbanization and infrastructure construction have transitioned from a period of rapid growth to a period of stable development. The demand for new construction is decreasing, but in-service transportation infrastructure and building structures are gradually entering the aging period, and the demand for reinforcement is increasing day by day. How to achieve rapid construction of existing structures, improve structural strength, and extend their service life is a key issue that needs to be solved in the current engineering application field.

[0003] Spraying ultra-high performance concrete is a fast construction method that uses special spraying construction equipment and compressed air as the power to spray ultra-high performance concrete slurry directly onto the working surface, solving the problems of low strength, poor toughness and insufficient durability of ordinary sprayed concrete. The application of spraying ultra-high performance concrete construction can save the complex processes of formwork, casting, vibration and demolding required in conventional scale construction, significantly improving construction efficiency, especially for the reinforcement of underwater (or offshore) structures, whose construction window period is short and narrow, and the application of spraying construction can greatly shorten the construction period; in addition, for urban traffic structures, spraying construction greatly alleviates the traffic control pressure caused by scale construction.

[0004] However, since the sprayed ultra-high performance concrete contains a certain amount of steel fibers, some of the steel fibers are exposed after the spraying construction. In the natural environment, especially the salt spray and marine environment, the exposed steel fibers will rust, affecting the appearance and durability of the structure. In addition, the sprayed surface of the sprayed ultra-high performance concrete is difficult to be as flat as the mold construction, and the spraying thickness of different parts is slightly different, and the appearance quality is not good. If the ultra-high performance concrete is sprayed before smoothing, the slurry mixed with the quick-setting agent will quickly solidify and harden, and the surface is difficult to smooth. In addition, many ultra-high performance concrete reinforced structures are large in size and difficult to handle manually.

[0005] Therefore, it is necessary to develop a surface treatment device with a simple structure and easy operation for spraying ultra-high performance concrete reinforced structures, which can synchronously smooth the sprayed surface of the ultra-high performance concrete, and can perform secondary spraying treatment and protection on the smoothed sprayed surface to form a sprayed surface protective layer, thereby significantly improving the appearance quality of the sprayed surface. Summary of the invention

[0006] The purpose of the utility model is to solve the shortcomings of the above-mentioned background technology and to provide a surface treatment device for spraying ultra-high performance concrete reinforcement structure with a simple structure and easy operation, which can synchronously smooth the sprayed surface of the sprayed ultra-high performance concrete, and can perform secondary spraying treatment and protection on the smoothed sprayed surface to form a sprayed surface protective layer, thereby significantly improving the appearance quality of the sprayed surface.

[0007] The technical solution of the utility model is: a surface treatment device for spraying ultra-high performance concrete reinforcement structure, characterized in that it includes an outer frame arranged on the periphery of the reinforcement structure and a mounting seat movably arranged on the outer frame, the outer frame is provided with a first driving mechanism for driving the mounting seat to move vertically, and the outer frame is provided with a second driving mechanism for driving the mounting seat to move circumferentially;

[0008] The mounting seat is detachably provided with a plastering device or a spraying device, wherein the plastering device comprises a plastering ruler for smoothing the injection surface and a water mist nozzle capable of spraying water mist on the plastering ruler, and the spraying device comprises a spray nozzle capable of modifying the injection surface after smoothing.

[0009] Preferably, the first driving mechanism comprises an annular first guide rail arranged along the circumference of the outer frame, a plurality of first electric sliders are circumferentially spaced on the first guide rail, and the first electric slider is vertically slidably connected to the outer frame for driving the first guide rail to move vertically.

[0010] Furthermore, there are two first electric sliders, which are arranged on the outer frame at equal intervals in the circumferential direction.

[0011] Furthermore, the second driving mechanism includes a second vertically arranged strip-shaped guide rail, and the second guide rail is provided with a second electric slider at the upper and lower ends. The second electric slider is circumferentially slidably connected to the outer frame to drive the second guide rail to move circumferentially.

[0012] Furthermore, the cross-contact arrangement of the first guide rail and the second guide rail can enable one of the first guide rail and the second guide rail that is away from the reinforcement structure to limit the other.

[0013] Furthermore, the mounting seat is arranged on the outer frame near the intersection of the first guide rail and the second guide rail, and the mounting seat is provided with a first sliding hoop slidably connected to the first guide rail and a second sliding hoop slidably connected to the second guide rail so that the mounting seat can move with the first guide rail and the second guide rail.

[0014] Furthermore, the outer frame is a cylindrical frame structure corresponding to the reinforcement structure, and the first guide rail is a circle arranged along the circumference of the outer frame. When the length of the second guide rail is ≥ the diameter of the first guide rail, the second guide rail of the first guide rail and the second guide rail is arranged adjacent to the reinforcement structure; when the length of the second guide rail is < the diameter of the first guide rail, the first guide rail of the first guide rail and the second guide rail is arranged adjacent to the reinforcement structure.

[0015] Preferably, the finishing ruler is detachably snap-connected to the inner side surface of the mounting base.

[0016] Preferably, the water mist nozzle is detachably snap-connected to the inner side surface of the mounting base, and the water mist nozzle is connected to a water mist pipe for water supply.

[0017] Preferably, the spray nozzle is detachably snap-connected to the inner side surface of the mounting base.

[0018] Preferably, the spray nozzle is connected to a spray pipeline for supplying material.

[0019] The beneficial effects of the utility model are:

[0020] 1. When installing the finishing device on the mounting base that can move both circumferentially and vertically, the ultra-high performance concrete spraying surface can be smoothed in time. When installing the spraying device, the finishing paint can be sprayed on the smoothed spraying surface to form a spraying surface protective layer, which greatly improves the appearance quality of the spraying surface and can also improve the rust problem caused by the direct contact of the steel fiber in the ultra-high performance concrete with the external environment.

[0021] 2. The annular first guide rail moves vertically on the outer frame through the first electric slider. When the first guide rail moves vertically, it drives the mounting seat to move synchronously, so as to conveniently and quickly realize the vertical smoothing of the spraying surface and the vertical spraying of the finishing paint.

[0022] 3. The second vertical guide rail moves horizontally and circumferentially on the outer frame through the second electric slider. When the second guide rail moves circumferentially, it drives the mounting seat to move synchronously, so as to conveniently and quickly realize the circumferential smoothing of the spraying surface and the circumferential spraying of the finishing paint.

[0023] 4. The mounting seat is slidably connected to the first guide rail through the first sliding hoop and slidably connected to the second guide rail through the second sliding hoop. Therefore, when the first guide rail moves vertically, the first sliding hoop is transmitted to the mounting seat to make it move vertically, and the second sliding hoop limits the mounting seat to slide vertically along the second guide rail; when the second guide rail moves circumferentially, the second sliding hoop is transmitted to the mounting seat to make it move circumferentially, and the first sliding hoop limits the mounting seat to slide circumferentially along the first guide rail. The mounting seat realizes vertical and circumferential movements through two sliding hoops, which is convenient for it to quickly process the entire injection surface.

[0024] 5. The plastering device includes a plastering ruler and a water mist nozzle. The water mist nozzle sprays water mist at the plastering ruler, so that the surface of the plastering knife remains moist during the plastering process, which is beneficial to improving the plastering quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the surface treatment device of the utility model

[0026] Figure 2 Schematic diagram of installing the plastering device on the mounting base

[0027] Figure 3 Schematic diagram of installing the spraying device on the mounting base

[0028] Among them: 1-outer frame (11-annular frame 12-vertical frame) 2-mounting seat 3-first guide rail 4-second guide rail 5-surface ruler 6-water mist nozzle 7-spray nozzle 10-reinforcement structure 21-first sliding hoop 22-second sliding hoop 31-first electric slider 41-second electric slider. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] like Figure 1-3As shown, the utility model provides a surface treatment device for spraying ultra-high performance concrete reinforcement structure, including an outer frame 1 arranged on the periphery of the reinforcement structure 10 and a mounting seat 2 movably arranged on the outer frame 1, the outer frame 1 is provided with a first driving mechanism for driving the mounting seat 2 to move vertically, the outer frame 1 is provided with a second driving mechanism for driving the mounting seat 2 to move circumferentially, the mounting seat 2 is detachably provided with a plastering device or a spraying device, the plastering device includes a plastering ruler 5 for smoothing the spraying surface and a water mist nozzle 6 for spraying water mist on the plastering ruler 5, and the spraying device includes a spraying nozzle 7 for modifying the spraying surface after smoothing. Figure 1 The middle and upper and lower directions are vertical.

[0033] The outer frame 1 is fixed to the reinforcement structure 10 by anchor bolts, and the circumference is consistent with the basic outline of the reinforcement structure, and can be square or circular. In this embodiment, the outer frame 1 is circular in circumference, and includes two annular frames 11 corresponding to the top and bottom of the reinforcement structure and two radially opposite vertical frames 12. The two vertical frames 12 and the two annular frames 11 are connected to form a frame as a whole.

[0034] The first driving mechanism includes an annular first guide rail 3 arranged along the circumference of the outer frame 1, and a plurality of first electric sliders 31 are arranged circumferentially at intervals on the first guide rail 3. The first electric slider 31 is vertically slidably connected to the outer frame 1 for driving the first guide rail 3 to move vertically. In this embodiment, there are two first electric sliders 31, which are arranged on two vertical frames 12 of the outer frame 1. Therefore, the two first electric sliders 31 are also radially symmetrical (i.e., arranged at equal intervals in the circumference), so that the first guide rail 3 is evenly stressed at both ends in the radial direction and the vertical movement is more stable. The first electric slider 31 is bolted to the first guide rail 3.

[0035] The second driving mechanism includes a second vertically arranged strip-shaped guide rail 4, and second electric sliders 41 are provided at the upper and lower ends of the second guide rail 4. The second electric sliders 41 are circumferentially slidably connected with the outer frame 1 to drive the second guide rail 4 to move circumferentially. In the embodiment, the two second electric sliders 41 are respectively arranged on the annular frame 11 at the upper and lower ends of the outer frame 1, so as to drive the second guide rail 4 to move circumferentially along the outer frame 1. The second electric sliders 41 are fixedly connected with the second guide rail 4 by bolts.

[0036] The cross-contact setting of the first guide rail 3 and the second guide rail 4 can make the one of the first guide rail 3 and the second guide rail 4 that is far away from the reinforcement structure limit the one that is close to the reinforcement structure. In the first guide rail 3 and the second guide rail 4, the inner and outer positions of the first guide rail 3 and the second guide rail 4 are determined by comparing the equivalent length of the first guide rail 3 (with the diameter as the equivalent length) with the vertical length of the second guide rail 4: the guide rail with a longer length is set on the side close to the injection surface, and the guide rail with a shorter length is set on the side away from the injection surface. This setting method can ensure that the deformation of the long guide rail is constrained by the short guide rail, and prevent bending or breaking caused by excessive length of the guide rail.

[0037] Specifically, in this embodiment, the first guide rail 3 is a circle arranged along the circumference of the outer frame 1. If the length of the second guide rail 4 is ≥ the diameter of the first guide rail 3, the second guide rail 4 is arranged adjacent to the reinforcement structure; if the length of the second guide rail 4 is < the diameter of the first guide rail 3, the first guide rail 3 is arranged adjacent to the reinforcement structure. Figure 1 That is, the length of the second guide rail 4 is greater than the horizontal equivalent length (diameter length) of the first guide rail 3, and the second guide rail 4 is arranged adjacent to the reinforcement structure.

[0038] The mounting seat 2 is arranged on the outer frame 1 near the intersection of the first guide rail 3 and the second guide rail 4. The mounting seat 2 is provided with a first sliding hoop 21 that is slidably connected to the first guide rail 3, and a second sliding hoop 22 that is slidably connected to the second guide rail 4 so that the mounting seat 2 can move with the first guide rail 3 and the second guide rail 4. In this embodiment, the mounting seat 2 is arranged slightly above the first guide rail 3, the first sliding hoop 21 extends downward from the bottom of the mounting seat 2 and is slidably connected to the first guide rail 3, and the second sliding hoop 22 extends horizontally from one side of the circumference of the mounting seat 2 and is slidably connected to the second guide rail 4.

[0039] For the plastering device, the plastering ruler 5 and the water mist nozzle 6 can be detachably connected to the inner side surface of the mounting base 2 (i.e., the side adjacent to the reinforcement structure), and the water mist nozzle 6 is connected to a water mist pipe for water supply. When the plastering ruler 5 is working, the water mist nozzle 6 sprays water mist toward it so that the surface of the plastering ruler 5 that contacts the spraying surface remains moistened, which is beneficial to improving the quality and efficiency of plastering.

[0040] For the spraying device, the spraying nozzle 7 is detachably clamped on the inner side of the mounting seat 2, and the spraying nozzle 7 is connected to the spraying pipeline for feeding material. The spraying nozzle 7 sprays paint directly on the spraying surface of the reinforcement structure to form a protective layer on the spraying surface and improve the appearance quality of the spraying surface.

[0041] The working principle of the utility model is:

[0042] The plastering ruler 5 and the water mist nozzle 6 are mounted on the mounting base 2 , connected by a detachable buckle, and the outlet of the water mist nozzle 6 is aligned with the plastering ruler 5 .

[0043] After the spraying of ultra-high performance concrete begins, the mounting seat 2 moves in the spraying direction, so that the plastering ruler 5 synchronously plasters the spraying surface. During the plastering process, the plastering ruler 5 can scrape off excess spraying slurry to make the surface of the spraying surface smooth.

[0044] When spraying ultra-high performance concrete, it is generally possible to first spray upward from the bottom of the reinforcement structure 10 to the top, then move circumferentially a preset distance, then spray downward from the top to the bottom, then move circumferentially a preset distance... repeat the cycle to spray the entire surface of the reinforcement structure; it is also possible to spray ultra-high performance concrete by first spraying at the bottom of the reinforcement structure for one circle, then move upward for a preset distance, then spray circumferentially for one circle... repeat the cycle to spray the entire surface of the reinforcement structure.

[0045] Therefore, when the mounting seat 2 needs to move vertically in the spraying direction, the first electric slider 31 is started to drive the first guide rail 3 and drive the mounting seat 2 to move vertically. When the mounting seat 2 needs to move circumferentially in the spraying direction, the second electric slider 41 is started to drive the second guide rail 4 and drive the mounting seat 2 to move circumferentially. The finishing ruler 5 is synchronously finishing on the mounting seat 2 in the spraying direction until the spraying surface is flat and has no roughness.

[0046] After the finishing is completed, remove the finishing ruler 5 and the water mist nozzle 6, install the spray nozzle 7 on the mounting seat 2, start the first electric slider 31 and the second electric slider 4 again, and drive the spray nozzle 7 to move at a uniform speed on the spraying surface until the spraying liquid forms a smooth, flat and uniform protective layer on the entire spraying surface.

Claims

1. A surface treatment device for spraying ultra-high performance concrete reinforcement structure, characterized in that: The invention comprises an outer frame (1) arranged on the periphery of a reinforcement structure and a mounting seat (2) movably arranged on the outer frame (1), wherein the outer frame (1) is provided with a first driving mechanism for driving the mounting seat (2) to move vertically, and the outer frame (1) is provided with a second driving mechanism for driving the mounting seat (2) to move circumferentially; The mounting seat (2) is detachably provided with a plastering device or a spraying device, the plastering device comprising a plastering ruler (5) for smoothing the sprayed surface and a water mist nozzle (6) capable of spraying water mist onto the plastering ruler (5), and the spraying device comprising a spraying nozzle (7) capable of modifying the smoothed sprayed surface.

2. The surface treatment device for spraying ultra-high performance concrete reinforcement structure according to claim 1, characterized in that: The first driving mechanism comprises an annular first guide rail (3) arranged along the circumference of the outer frame (1); a plurality of first electric sliders (31) are circumferentially spaced apart on the first guide rail (3); the first electric sliders (31) are vertically slidably connected to the outer frame (1) for driving the first guide rail (3) to move vertically.

3. The surface treatment device for spraying ultra-high performance concrete reinforcement structure according to claim 2, characterized in that: There are two first electric sliders (31), which are arranged on the outer frame (1) at equal intervals in the circumferential direction.

4. The surface treatment device for spraying ultra-high performance concrete reinforcement structure according to claim 2, characterized in that: The second driving mechanism comprises a second strip-shaped guide rail (4) arranged vertically, and second electric sliders (41) are provided at the upper and lower ends of the second guide rail (4). The second electric slider (41) is circumferentially slidably connected to the outer frame (1) for driving the second guide rail (4) to move circumferentially.

5. The surface treatment device for spraying ultra-high performance concrete reinforcement structure according to claim 4, characterized in that: The cross-contact arrangement of the first guide rail (3) and the second guide rail (4) can enable one of the first guide rail (3) and the second guide rail (4) that is away from the reinforcement structure to limit the position of the other.

6. The surface treatment device for spraying ultra-high performance concrete reinforcement structure according to claim 5, characterized in that: The mounting seat (2) is arranged on the outer frame (1) near the intersection of the first guide rail (3) and the second guide rail (4); the mounting seat (2) is provided with a first sliding hoop (21) slidably connected to the first guide rail (3), and a second sliding hoop (22) slidably connected to the second guide rail (4), so that the mounting seat (2) can move following the first guide rail (3) and the second guide rail (4).

7. The surface treatment device for spraying ultra-high performance concrete reinforcement structure according to claim 1, characterized in that: The finishing ruler (5) is detachably clamped on the inner side surface of the mounting seat (2).

8. The surface treatment device for spraying ultra-high performance concrete reinforcement structure according to claim 1, characterized in that: The water mist nozzle (6) is detachably snap-connected to the inner side of the mounting seat (2), and the water mist nozzle (6) is connected to a water mist pipe for water supply.

9. The surface treatment device for spraying ultra-high performance concrete reinforcement structure according to claim 1, characterized in that: The spray nozzle (7) is detachably clamped on the inner side surface of the mounting seat (2).

10. The surface treatment device for spraying ultra-high performance concrete reinforcement structure according to claim 1, characterized in that: The spray nozzle (7) is connected to a spray pipeline for feeding materials.

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