Spray head for spraying concrete

Abstract

The utility model belongs to the technical field of sprayers, and particularly relates to a sprayer for spraying concrete, which comprises a sprayer body, a connector is fixedly mounted on the sprayer body, a rotating rod is fixedly connected to the bottom end of the connector, a supporting plate is arranged below the connector, a limiting cylinder corresponding to the rotating rod is fixedly mounted on the supporting plate, and the rotating rod is fixedly connected with the limiting cylinder. An annular groove is formed in the rotating rod, and an annular block corresponding to the annular groove is fixedly installed in the limiting cylinder. The angle of a spray head used for spraying concrete can be conveniently adjusted through the installed rotating rod, the spraying angle is adjusted, when the spraying angle of the spray head is adjusted, a connector is rotated, the rotating rod can be driven to rotate in a limiting barrel, then an annular groove can be driven to rotate on an annular block, the rotating rod rotates stably, and the spraying angle of the spray head is adjusted. After the angle of the spray head body is adjusted, the position of the rotating rod is positioned through the positioning assembly, and then the angle of the spray head body is positioned.

Description

Technical Field

[0001] The utility model belongs to the technical field of spray heads, and in particular relates to a spray head for spraying concrete. Background Art

[0002] The nozzle used for shotcrete can spray concrete onto the working surface at a high speed, greatly improving construction efficiency and shortening construction period. It allows the concrete to be evenly atomized, so that it can solidify quickly when sprayed onto the working surface, forming a uniform and dense covering layer, thereby improving the bearing capacity and durability of the structure. The nozzle is usually made of wear-resistant and high-pressure resistant materials, has a good service life, and can maintain stable performance in harsh construction environments.

[0003] Patent document: CN214786066U, which discloses a shotcrete nozzle, and the technology discloses "comprising a feed pipe (1), an auxiliary agent delivery pipe (2), a spiral blade (3), a spraying device (4), a connecting pipe (5) and a discharge pipe (6). The connecting pipe (5) is connected to the discharge pipe (6) and the feed pipe (1); the auxiliary agent delivery pipe (2) is connected to the spraying device (4); the feed pipe (1) is connected to the spraying device (4) through a spiral blade (3); the spiral blade (3) is spiral and evenly arranged; the spraying device (4) is provided with an annular inclined channel, and the channel is connected to the auxiliary agent delivery pipe (2). The nozzle of the utility model causes the concrete to rotate by rotating the blades, and applies an auxiliary rotation force by the spraying device. The two rotations fully mix the quick-setting agent and the concrete, while increasing the speed and uniformity of concrete spraying, thereby improving the construction efficiency";

[0004] However, when using this device, the main consideration is to fully mix the quick-setting agent with the concrete. In the concrete spraying operation, due to the constraints of technical conditions, the operation of spraying concrete often has certain limitations, especially in some narrow working areas, the nozzle is difficult to spray concrete at the designated spraying position, which makes it difficult to spray concrete evenly, affects the progress of the project, and may also have an adverse effect on the quality of the project;

[0005] In order to solve the above problems, the present application proposes a nozzle for spraying concrete. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a spray head for spraying concrete, which has the feature of adjusting the angle of spraying concrete.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nozzle for spraying concrete, comprising a nozzle body, a connecting head fixedly mounted on the nozzle body, a rotating rod fixedly connected to the bottom end of the connecting head, a support plate arranged below the connecting head, a limiting cylinder corresponding to the rotating rod fixedly mounted on the support plate, and the bottom end of the rotating rod extends to the inside of the limiting cylinder, an annular groove is arranged on the rotating rod, an annular block corresponding to the annular groove is fixedly mounted inside the limiting cylinder, and the annular groove is snap-connected with the annular block, a positioning assembly is arranged on the limiting cylinder, and a spray hole is arranged on the nozzle body.

[0008] As a preferred nozzle for spraying concrete of the utility model, the positioning assembly includes a threaded ring, a positioning bolt and a limiting clamp ring, the threaded ring is fixedly mounted on the limiting cylinder, the positioning bolt is threadedly connected to the inside of the threaded ring, and one end of the positioning bolt extends to the inside of the limiting cylinder, and the limiting clamp ring is fixedly mounted on the rotating rod.

[0009] As a preferred embodiment of the nozzle for spraying concrete of the utility model, the support plate is symmetrically provided with limiting holes.

[0010] As a preferred embodiment of the nozzle for spraying concrete of the utility model, a drainage ring is embedded in the nozzle body.

[0011] As a preferred embodiment of the nozzle for spraying concrete of the utility model, a water injection pipe is fixedly installed on the drainage ring.

[0012] As a preferred embodiment of the nozzle for spraying concrete of the utility model, the inner circle array of the drainage ring is provided with water spraying ports.

[0013] As a preferred embodiment of the nozzle for spraying concrete of the utility model, a protective net is fixedly installed inside the water spray port.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model is convenient for adjusting the angle of the nozzle used for spraying concrete by installing a rotating rod. When it is necessary to spray concrete at a narrow location, the nozzle body cannot be reached by hand and the spraying space is limited, so the nozzle body is moved with the help of tools to spray concrete. However, due to the specific terrain, the spraying angle needs to be adjusted. When adjusting the spraying angle of the nozzle, rotating the connecting head will drive the rotating rod to rotate inside the limiting cylinder, and then drive the annular groove to rotate on the annular block. After adjusting the angle of the nozzle body, the nozzle body is positioned by the positioning assembly, which is convenient for adjusting the angle of spraying concrete and improving flexibility. After the nozzle with the adjusted angle is moved to the spraying location with the help of tools, it is convenient to spray concrete at a narrow location and to spray concrete on different terrains.

[0016] 2. The utility model facilitates the removal of concrete adsorbed inside the nozzle for spraying concrete by installing a drainage ring. The water injection pipe is connected to an external water supply pipe. After the nozzle for spraying concrete is used, when the concrete adsorbed inside is removed, the external water source enters the drainage ring through the water injection pipe, and then the water source is sprayed toward the inside of the nozzle body through the water spray port to wash the concrete adsorbed inside the nozzle body. The water source for washing the concrete flows to the outside through the spray hole, thereby achieving the purpose of cleaning the concrete inside the nozzle for spraying concrete, avoiding the concrete being adsorbed inside for a long time and being difficult to remove after solidification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the limit cylinder in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the rotating rod in the utility model;

[0021] Figure 4 This is a schematic diagram of the drainage ring structure in the utility model;

[0022] In the figure: 1. Connecting head; 2. Nozzle body; 3. Spray hole; 4. Rotating rod; 5. Limiting cylinder; 6. Ring block; 7. Threaded ring; 8. Positioning bolt; 9. Ring groove; 10. Limiting clamp ring; 11. Support plate; 12. Limiting hole; 13. Drain ring; 14. Water injection pipe; 15. Water spray port; 16. Protective net. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1

[0025] like Figure 1 , Figure 2 and Figure 3As shown: a nozzle for spraying concrete, including a nozzle body 2, a connecting head 1 is fixedly installed on the nozzle body 2, a rotating rod 4 is fixedly connected to the bottom end of the connecting head 1, a support plate 11 is arranged below the connecting head 1, a limiting cylinder 5 corresponding to the rotating rod 4 is fixedly installed on the support plate 11, and the bottom end of the rotating rod 4 extends to the inside of the limiting cylinder 5, an annular groove 9 is arranged on the rotating rod 4, an annular block 6 corresponding to the annular groove 9 is fixedly installed inside the limiting cylinder 5, and the annular groove 9 is snap-connected with the annular block 6, a positioning assembly is arranged on the limiting cylinder 5, and a spray hole 3 is arranged on the nozzle body 2.

[0026] In the present embodiment: when using a nozzle for spraying concrete, it is connected to a pipe for conveying concrete through a connector 1, and then the pipe allows concrete to enter the interior of the nozzle body 2, and then the concrete is sprayed to the outside through the spray hole 3, so that the concrete is sprayed to the coating location. The nozzle for spraying concrete generally needs to be used by hand to coat the location with concrete, but due to the limited height of a person, the spraying height will be affected. When it is necessary to spray concrete at a high place, with the help of a tool long rod, a threaded hole is set on the tool long rod, and after the limiting hole 12 is aligned with the threaded hole, a bolt is used to pass through the limiting hole 12 and connect with the threaded hole, and the position of the limiting hole 12 is limited, and then the position of the connector 1 is fixedly supported by the cooperation of the limiting cylinder 5 and the rotating rod 4, and then the position of the nozzle for spraying concrete is supported, and it can be installed on the tool long rod, and then the height of the nozzle body 2 can be adjusted by the cooperation of the tool long rod. , it is convenient to spray concrete at locations at different heights, and the practicality of the nozzle used for spraying concrete is improved. The angle of spraying concrete is specific most of the time. The nozzle of manually holding spraying concrete can spray concrete at different locations, but when it is necessary to spray concrete at some locations with narrow terrain, the position of the manually holding nozzle body 2 cannot be reached, and the spraying space is limited. Therefore, it is necessary to use tools to move the nozzle body 2 to spray concrete, but due to the specific terrain, the spraying angle needs to be adjusted. When adjusting the spraying angle of the nozzle, rotating the connecting head 1 will drive the rotating rod 4 to rotate inside the limiting cylinder 5, and then drive the annular groove 9 to rotate on the annular block 6, so that the rotating rod 4 rotates smoothly. After adjusting the angle of the nozzle body 2, the position of the rotating rod 4 is positioned by the positioning assembly, and then the angle of the nozzle body 2 is positioned, which is convenient for adjusting the angle of spraying concrete, improves flexibility, and is convenient for spraying concrete on different terrains.

[0027] like Figure 2As shown: In an optional embodiment, the positioning assembly includes a threaded ring 7, a positioning bolt 8 and a limiting snap ring 10, the threaded ring 7 is fixedly mounted on the limiting cylinder 5, the positioning bolt 8 is threadedly connected to the inside of the threaded ring 7, and one end of the positioning bolt 8 extends to the inside of the limiting cylinder 5, and the limiting snap ring 10 is fixedly mounted on the rotating rod 4.

[0028] In this embodiment: when the positioning assembly limits the position of the rotating rod 4, the positioning bolt 8 is rotated, and the threaded ring 7 will move the position of the positioning bolt 8. After the positioning bolt 8 moves and contacts the surface of the limiting clamping ring 10, a protrusion is provided on the limiting clamping ring 10, which will then position the position of the rotating rod 4.

[0029] like Figure 1 As shown: In an optional embodiment, the support plate 11 is symmetrically provided with limiting holes 12 .

[0030] In this embodiment, bolts are used through the limiting holes 12 to facilitate positioning and installation of the support plate 11 .

[0031] like Figure 1 As shown: In an optional embodiment, a drainage ring 13 is embedded inside the nozzle body 2.

[0032] In this embodiment: the nozzle body 2 provides an installation space for the drainage ring 13 .

[0033] like Figure 4 As shown: In an optional embodiment, a water injection pipe 14 is fixedly installed on the drainage ring 13, and a water spraying port 15 is arranged in an array in the inner circle of the drainage ring 13.

[0034] In this embodiment: the water injection pipe 14 is connected to the external water supply pipeline. After the nozzle for spraying concrete is used, when the concrete adsorbed inside is to be cleaned, the external water source enters the drainage ring 13 through the water injection pipe 14, and the water source is sprayed to the inside of the nozzle body 2 through the water spray port 15 to flush the concrete adsorbed inside the nozzle body 2. The water source for flushing the concrete will flow to the outside through the spray hole 3, thereby achieving the purpose of cleaning the concrete inside the nozzle for spraying concrete, avoiding the concrete being adsorbed inside for a long time and being difficult to remove after solidification.

[0035] like Figure 4 As shown: in an optional embodiment, a protective net 16 is fixedly installed inside the water spray port 15.

[0036] In this embodiment, the protective net 16 prevents the concrete inside the nozzle for spraying concrete from entering the inside of the drainage ring 13 through the water spraying port 15 .

[0037] The working principle and use process of the utility model are as follows: first, when using a nozzle for spraying concrete, the nozzle 1 is connected to a pipe for conveying concrete through a connector 1, and then the pipe allows concrete to enter the interior of the nozzle body 2, and then the concrete is sprayed to the outside through a spray hole 3, so that the concrete is sprayed to the coating location. The nozzle for spraying concrete generally needs to be used by hand to coat the concrete coating location, but due to the limited height of a person, the spraying height will also be affected. When it is necessary to spray concrete at a high place, a tool long rod is used, and a threaded hole is set on the tool long rod so that the limit hole 12 After being aligned with the threaded hole, a bolt is used to pass through the limiting hole 12 and connected with the threaded hole to limit the position of the limiting hole 12, and then the limiting cylinder 5 and the rotating rod 4 cooperate to fix and support the position of the connecting head 1, thereby supporting the position of the nozzle for spraying concrete, which can be installed on the tool long rod, and then the height of the nozzle body 2 can be adjusted through the cooperation of the tool long rod, so as to facilitate the spraying of concrete at places of different heights, thereby improving the practicality of the nozzle for spraying concrete. The angle of spraying concrete is usually specific, and the nozzle for spraying concrete manually held by hand is difficult to be used. Concrete can be sprayed at different locations. However, when it is necessary to spray concrete at some places with narrow terrain, the position of the manual handheld nozzle body 2 cannot be reached and the spraying space is limited. Therefore, it is necessary to use tools to move the nozzle body 2 to spray concrete. However, due to the specific terrain, the spraying angle needs to be adjusted. Rotating the connecting head 1 will drive the rotating rod 4 to rotate inside the limiting cylinder 5, and then drive the annular groove 9 to rotate on the annular block 6, so that the rotating rod 4 rotates smoothly. After adjusting the angle of the nozzle body 2, the position of the rotating rod 4 is positioned by the positioning assembly, and then the angle of the nozzle body 2 is adjusted. Positioning is performed to facilitate adjustment of the angle of shotcrete, which improves flexibility and facilitates shotcrete spraying on different terrains. The water injection pipe 14 is connected to an external water supply pipeline. After the nozzle for shotcrete spraying is used, when the concrete adsorbed inside is to be cleared, the external water source enters the drainage ring 13 through the water injection pipe 14, and then the water source is sprayed to the inside of the nozzle body 2 through the water spray port 15 to flush the concrete adsorbed inside the nozzle body 2. The water source for flushing the concrete will flow to the outside through the spray hole 3, thereby achieving the purpose of cleaning the concrete inside the nozzle for shotcrete spraying.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A nozzle for spraying concrete, comprising a nozzle body (2), characterized in that: A connecting head (1) is fixedly mounted on the nozzle body (2), a rotating rod (4) is fixedly connected to the bottom end of the connecting head (1), a support plate (11) is arranged below the connecting head (1), a limiting cylinder (5) corresponding to the rotating rod (4) is fixedly mounted on the support plate (11), and the bottom end of the rotating rod (4) extends to the inside of the limiting cylinder (5), an annular groove (9) is arranged on the rotating rod (4), an annular block (6) corresponding to the annular groove (9) is fixedly mounted inside the limiting cylinder (5), and the annular groove (9) is snap-connected with the annular block (6), a positioning assembly is arranged on the limiting cylinder (5), and a spray hole (3) is arranged on the nozzle body (2).

2. A nozzle for spraying concrete according to claim 1, characterized in that: The positioning assembly comprises a threaded ring (7), a positioning bolt (8) and a limiting snap ring (10); the threaded ring (7) is fixedly mounted on the limiting cylinder (5); the positioning bolt (8) is threadedly connected to the inside of the threaded ring (7), and one end of the positioning bolt (8) extends to the inside of the limiting cylinder (5); and the limiting snap ring (10) is fixedly mounted on the rotating rod (4).

3. A nozzle for spraying concrete according to claim 1, characterized in that: The support plate (11) is symmetrically provided with limiting holes (12).

4. A nozzle for spraying concrete according to claim 1, characterized in that: A drainage ring (13) is embedded inside the nozzle body (2).

5. A nozzle for spraying concrete according to claim 4, characterized in that: A water injection pipe (14) is fixedly mounted on the drainage ring (13).

6. A nozzle for spraying concrete according to claim 5, characterized in that: The inner circle array of the drainage ring (13) is provided with water spray outlets (15).

7. A nozzle for spraying concrete according to claim 6, characterized in that: A protective net (16) is fixedly installed inside the water spray port (15).

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