Spray head device for spraying concrete

Abstract

The utility model relates to the technical field of building construction equipment, in particular to a spray head device for spraying concrete, which comprises a concrete pipeline, a shell, a nozzle, a grip, an atomizing spray head, a wind shield and a laser positioning device, one end of the concrete pipeline is fixedly connected with the shell, a mixing cavity is arranged in the shell, the nozzle is arranged on one side of the shell, and the grip is arranged on the other side of the shell. Fixing blocks are fixedly connected to the top end of the shell, a grip is rotationally connected between the fixing blocks, a spray box is fixedly connected to one side of the shell, a reagent pipeline is fixedly connected to one side of the spray box, and an atomization spray head is fixedly connected to one end of the reagent pipeline. The spraying direction of the nozzles can be conveniently controlled by a worker, the laser positioning device is arranged to assist the worker in spraying positioning, and the two same nozzles are arranged, so that the spraying efficiency is improved, meanwhile, the uniformity of the spraying range is ensured, and the construction efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction equipment, in particular to a spray head device for sprayed concrete. Background Art

[0002] At present, the nozzle device for shotcrete in the market is one of the key equipment for shotcrete construction in tunnels, mines, slopes and other projects. The design of this device directly affects the concrete spraying effect and construction quality.

[0003] The existing nozzle device does not have a suitable holding component, and the staff can only control it by holding the nozzle body. Some nozzles do not have a spray point positioning device and cannot achieve positioned spraying. Some nozzle devices may also have uneven concrete distribution during the spraying process, resulting in low construction efficiency. Therefore, a nozzle device for shotcrete is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a spray head device for shotcrete to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A nozzle device for shotcrete spraying comprises a concrete pipe, a shell, a nozzle, a handle, an atomizing nozzle, a windshield and a laser positioning device, wherein one end of the concrete pipe is fixedly connected to the shell, a mixing chamber is provided inside the shell, a nozzle is provided on one side of the shell, a fixing block is fixedly connected to the top of the shell, a handle is rotatably connected between the fixing blocks, a spray box is fixedly connected to one side of the shell, a reagent pipe is fixedly connected to one side of the spray box, an atomizing nozzle is fixedly connected to one end of the reagent pipe, a fixed shaft is provided inside the mixing chamber, a fan blade is fixedly connected to the outside of the fixed shaft, a windshield is rotatably connected to the outside of the shell close to the nozzle, a support rod is fixedly connected to the side of the shell away from the concrete pipe, and a laser positioning device is rotatably connected to one end of the support rod.

[0007] Preferably, there are two nozzles.

[0008] Preferably, the atomizing nozzle is fixedly connected to the inside of the concrete pipe.

[0009] Preferably, there are two spray boxes and they are symmetrically distributed on both sides of the shell.

[0010] Preferably, the fixed shaft is rotatably connected to the housing.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, the holding method of the nozzle is increased by providing a handle, which makes it easier for workers to control the spraying direction of the nozzle. A laser positioning device is provided to assist workers in spraying positioning. By providing two identical nozzles, the spraying efficiency is improved while ensuring the uniformity of the spraying range, thereby further improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0015] Figure 3 This is a schematic diagram of the overall appearance structure of the utility model;

[0016] Figure 4 It is a schematic side view of the structure of the utility model.

[0017] In the figure: 1. concrete pipe; 2. shell; 3. mixing chamber; 4. nozzle; 5. fixing block; 6. handle; 7. spray box; 8. reagent pipe; 9. atomizing nozzle; 10. fan blade; 11. fixed axis; 12. wind shield; 13. support rod; 14. laser positioning device. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0021] See also Figure 1-4 , the utility model provides a technical solution:

[0022] A nozzle device for shotcrete spraying comprises a concrete pipe 1, a shell 2, a nozzle 4, a handle 6, an atomizing nozzle 9, a windshield 12 and a laser positioning device 14, wherein one end of the concrete pipe 1 is fixedly connected to the shell 2, a mixing chamber 3 is arranged inside the shell 2, a nozzle 4 is arranged on one side of the shell 2, a fixing block 5 is fixedly connected to the top of the shell 2, a handle 6 is rotatably connected between the fixing blocks 5, a spray box 7 is fixedly connected to one side of the shell 2, a reagent pipe 8 is fixedly connected to one side of the spray box 7, an atomizing nozzle 9 is fixedly connected to one end of the reagent pipe 8, a fixed shaft 11 is arranged inside the mixing chamber 3, a fan blade 10 is fixedly connected to the outside of the fixed shaft 11, a windshield 12 is rotatably connected to the outside of the shell 2 close to the nozzle 4, a support rod 13 is fixedly connected to the side of the shell 2 away from the concrete pipe 1, and a laser positioning device 14 is rotatably connected to one end of the support rod 13.

[0023] There are two nozzles 4, and the two identical nozzles 4 improve the injection efficiency while ensuring the uniformity of the spraying range, thereby further improving the construction efficiency. The atomizing nozzle 9 is fixedly connected to the inside of the concrete pipe 1. There are two spray boxes 7 and they are symmetrically distributed on both sides of the shell 2, which is convenient for mixing the quick-setting agent with the concrete. The fixed shaft 11 is rotatably connected to the shell 2 to facilitate the concrete to enter the nozzle 4.

[0024] Working process: When we need to spray concrete, fill the spray box 7 with the accelerating setting agent in advance, and the compressed air blower will quickly spray the concrete into the mixing chamber 3 through the concrete pipe 1. At this time, the accelerating setting agent will flow out of the spray box 7, flow through the reagent pipe 8, and then be sprayed on the concrete surface through the atomizing nozzle 9. The concrete sprayed into the mixing chamber 3 will hit the fan blades 10. The large amount of kinetic energy of the concrete will make the fan blades 10 push the fixed shaft 11 to rotate, and the fan blades 10 will fully mix the concrete and the accelerating setting agent. The side of the shell 2 away from the concrete pipe 1 is fixedly connected with a support rod 13. The support rod 13 One end is rotatably connected to a laser positioning device 14. The staff starts the laser positioning device 14, which is a prior art. The laser positioning device 14 uses a level and a laser to accurately locate the landing point of the parabola formed when the concrete is sprayed out. A fixed block 5 is fixedly connected to the top of the shell 2, and a handle 6 is rotatably connected between the fixed blocks 5. Then the staff picks up the handle 6, adjusts the nozzle 4 to a suitable spraying angle, and then opens the wind shield 12. Concrete will be sprayed from the two nozzles 4 to cover the working surface, and the quick-setting agent mixed in the concrete will quickly solidify the concrete after sufficient contact with the air.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spray nozzle device for shotcrete, comprising a concrete pipe (1), a housing (2), a nozzle (4), a handle (6), an atomizing nozzle (9), a windshield (12) and a laser positioning device (14), characterized in that: One end of the concrete pipe (1) is fixedly connected to a shell (2), a mixing chamber (3) is provided inside the shell (2), a nozzle (4) is provided on one side of the shell (2), a fixing block (5) is fixedly connected to the top of the shell (2), a handle (6) is rotatably connected between the fixing blocks (5), a spray box (7) is fixedly connected to one side of the shell (2), a reagent pipe (8) is fixedly connected to one side of the spray box (7), an atomizing nozzle (9) is fixedly connected to one end of the reagent pipe (8), a fixing shaft (11) is provided inside the mixing chamber (3), a fan blade (10) is fixedly connected to the outside of the fixing shaft (11), a windshield (12) is rotatably connected to the outside of the shell (2) close to the nozzle (4), a support rod (13) is fixedly connected to the side of the shell (2) away from the concrete pipe (1), and a laser positioning device (14) is rotatably connected to one end of the support rod (13).

2. A spray head device for shotcrete according to claim 1, characterized in that: There are two nozzles (4).

3. A spray head device for shotcrete according to claim 1, characterized in that: The atomizing nozzle (9) is fixedly connected inside the concrete pipe (1).

4. A spray head device for shotcrete according to claim 1, characterized in that: There are two spray boxes (7) which are symmetrically distributed on both sides of the shell (2).

5. A spray head device for shotcrete according to claim 1, characterized in that: The fixed shaft (11) is rotatably connected to the housing (2).

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