Spraying construction assembly for inner wall of civil engineering pressurized air supply shaft

Abstract

The utility model provides a civil engineering pressurized air supply shaft inner wall spraying construction assembly, and relates to the technical field of civil engineering construction. Comprising a supporting piece, a nozzle component, a rubber pipe and a material spraying device, the nozzle component is communicated with the material spraying device through the rubber pipe, and the supporting piece is arranged in an air shaft; in the spraying construction process, the nozzle component is arranged in the air shaft through the pressurizing air supply outlet reserved hole, the spraying device filled with the coating reaches the nozzle component through the rubber pipe, the nozzle component is supported to slide downwards through the supporting piece, in the sliding-down process of the nozzle component, the coating is sprayed to the inner wall of the air shaft, and a sealing film layer is formed in the coating. According to the spraying construction assembly for the inner wall of the civil engineering pressurized air supply shaft, the nozzle component is matched with the material spraying device, in the spraying construction process, the inner wall of the air shaft is coated with a layer of sealing film, and the smoothness and the sealing performance of the inner wall of an air duct are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil construction, in particular to a civil construction pressurized air supply shaft inner wall spraying construction assembly. Background Art

[0002] The implementation of GB51251-2017, the Technical Standard for Smoke and Exhaust Systems in Buildings, has placed stricter requirements on the tightness of positive pressure ventilation systems. Given that the interior walls of civil engineering air ducts are rough and often have gaps, posing a risk of air leakage, GB51251 requires the use of pre-finished duct linings. However, actual construction presents numerous potential risks, and pre-finished ducts have a limited lifespan, which can affect pressurized air supply as they age.

[0003] The utility model aims to ensure that the inner wall of the civil construction air shaft is smooth and tight by spraying the inner wall of the civil construction pressurized air supply shaft to meet the air duct tightness required by the specification. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a civil engineering pressurized air supply shaft inner wall spraying construction assembly, the civil engineering pressurized air supply shaft inner wall spraying construction assembly includes a support member, a nozzle component, a rubber tube and a spraying device, the nozzle component is connected to the spraying device through the rubber tube, and the support member is arranged in the air shaft.

[0005] During the spraying construction process, the nozzle component is placed in the air shaft through the reserved hole of the pressurized air supply port. The spraying device filled with paint reaches the nozzle component through a rubber tube. The nozzle component is supported and slides down by a support. During the sliding process of the nozzle component, the paint is sprayed onto the inner wall of the air shaft, forming a sealing film layer inside the paint.

[0006] Optionally, the nozzle component includes a nozzle collecting plate, several nozzle conduits, nozzles connected to the nozzle conduits, and a spray path collection pipe; one end of the spray path collection pipe is connected to the rubber tube, one end of the nozzle conduit is connected to the other end of the spray path collection pipe, and the other end of the nozzle conduit is arranged at a certain interval on the side of the nozzle collecting plate.

[0007] Furthermore, the top view of the nozzle component is circular, and the size of the nozzle component is smaller than the size of the air shaft, which facilitates the nozzle component to enter the air shaft (for example, the maximum diameter of the nozzle component is smaller than the minimum width of the air shaft). One end of the spray manifold and the rubber tube can be connected and fixed with a steel-plastic connector through a stainless steel clip, and one end of the nozzle conduit and the other end of the spray manifold can be connected in an integrated manner. By arranging a plurality of nozzle conduits on the side of the nozzle collecting plate, the paint can be smoothly sprayed onto the inner wall of the air shaft during the spraying construction process. The paint can be a paint, but the present invention is not limited to this. Those skilled in the art can select a suitable paint according to the material of the inner wall of the air shaft.

[0008] Optionally, the top of the nozzle is provided with a plurality of fine holes. By providing a plurality of fine holes on the nozzle, the spraying range of the nozzle can be increased, the uniformity of the spraying can be increased, and the sealing of the air shaft can be further improved.

[0009] Optionally, the nozzle assembly plate is provided with a plurality of slots. For example, the nozzle assembly plate is circular and has two slots, the two slots being centrally symmetrical. During the spraying process, the support member can be engaged in the slots to support the nozzle assembly, thereby preventing the nozzle assembly from tipping over during the spraying process, resulting in incomplete spraying.

[0010] Optionally, the support members comprise a plurality of steel cables, one end of which is secured to the top of the air shaft and the other end to the bottom of the air shaft. Furthermore, two steel cables may be provided, each engaged with two slots in the nozzle collecting plate, thereby securing and supporting the nozzle assembly and preventing it from tilting during its downward movement. This also prevents the nozzle assembly from contacting the inner wall of the air shaft during its downward movement, thereby preventing smooth downward movement and causing uneven coating application.

[0011] Optionally, the spraying device includes a spray barrel, a pressure pump, and an on / off valve. The pressure pump is connected to the spray barrel, and the on / off valve is mounted on the barrel. Furthermore, the on / off valve is mounted at the discharge port of the spray barrel, and a rubber hose is connected to the discharge port of the spray barrel. During the spraying process, the nozzle assembly is first placed into the air shaft through the hole reserved for the pressurized air supply port and clamped between the supports. The on / off valve is then opened, and the pressure pump is activated to spray.

[0012] Optionally, a fastening rope may be included, one end of which is secured to the nozzle assembly. Furthermore, to prevent the nozzle assembly from sliding down too quickly or uncontrollably during the sliding process, which could lead to the rubber tube breaking, a fastening rope may be provided on the nozzle assembly. For example, two or more fastening ropes may be symmetrically arranged. For example, these may be hemp rope or steel wire rope. The material and number of the fastening ropes may be selected by those skilled in the art based on the nozzle assembly material and the sliding conditions, and the present invention is not limited thereto.

[0013] Compared with the prior art, the present invention achieves at least one of the following beneficial effects:

[0014] (1) The utility model discloses a construction assembly for spraying the inner wall of a pressurized air supply shaft for civil engineering. The nozzle component cooperates with the spraying device to coat a layer of sealing film on the inner wall of the air shaft during the spraying construction process, thereby improving the smoothness and sealing of the inner wall of the air duct.

[0015] (2) The utility model of the spraying construction assembly for the inner wall of the pressurized air supply shaft of civil engineering has a simple structure. By providing a slot on the nozzle collecting plate, the support member can be snapped into the slot during the spraying construction process to play the role of supporting the nozzle component and prevent the nozzle component from tipping over during the spraying process, resulting in the phenomenon of incomplete spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 An exemplary embodiment of a side view structure of a nozzle component is shown;

[0018] Figure 2 An exemplary embodiment of a top view structure of a nozzle component is shown;

[0019] Figure 3 An exemplary embodiment of a civil construction layout drawing of a spraying construction assembly for the inner wall of a civil construction pressurized air supply shaft is shown;

[0020] Figure 4 An exemplary embodiment of a spraying operation diagram of an inner wall spraying construction assembly of a civil construction pressurized air shaft is shown.

[0021] Description of reference numerals:

[0022] 1-support; 2-nozzle component; 201-nozzle collecting plate; 202-nozzle guide tube; 203-nozzle; 204-spraying manifold; 205-slot; 3-rubber tube; 4-spraying device; 401-spraying barrel; 402-pressure pump; 5-reserved hole for pressurized air outlet; 6-air shaft; 7-cement mortar layer. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0025] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", 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, rather than indicating or implying 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.

[0026] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0027] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0028] Figure 1 An exemplary embodiment of a side view structure of a nozzle component is shown; Figure 2 An exemplary embodiment of a top view structure of a nozzle component is shown; Figure 3 An exemplary embodiment of a civil construction layout drawing of a spraying construction assembly for the inner wall of a civil construction pressurized air supply shaft is shown; Figure 4 An exemplary embodiment of a spraying operation diagram of an inner wall spraying construction assembly of a civil construction pressurized air shaft is shown.

[0029] In an exemplary embodiment of the present invention, reference is made to Figures 1-4 As shown, the civil construction pressurized air supply shaft inner wall spraying construction assembly includes a support member 1, a nozzle component 2, a rubber tube 3 and a spraying device 4.

[0030] The support member 1 is two steel ropes, one end of the steel rope is fixed to the top of the air shaft 6, and the other end of the steel rope is fixed to the bottom of the air shaft 6.

[0031] The nozzle assembly 2 includes a nozzle collecting plate 201, a plurality of nozzle guide tubes 202, nozzles 203 connected to the nozzle guide tubes 202, and a spray path manifold 204. The nozzle assembly is circular in top view, and the nozzle collecting plate 201 is circular. One end of the spray path manifold 204 is connected and fixed to the rubber tube 3 using a steel-plastic connector via a stainless steel clip. One end of the nozzle guide tube 202 is integrally connected to the other end of the spray path manifold 204, and the other end of the nozzle guide tube 202 is arranged at a certain interval on the side of the nozzle collecting plate 201. The top of the nozzle 203 is provided with multiple fine holes to increase the spraying range of the nozzle. The nozzle collecting plate 201 is provided with two card slots 205, and the two card slots 205 are arranged symmetrically with respect to the center. During the spraying construction process, two steel wire ropes can be respectively connected to the two card slots to support the nozzle assembly and prevent the nozzle assembly from tipping over during the spraying process, resulting in the phenomenon of incomplete spraying.

[0032] The spraying device 4 includes a spraying barrel 401, a pressure pump 402 and a switch valve (not shown in the figure). The pressure pump 402 is connected to the spraying barrel 401, and the switch valve is arranged at the discharge port of the spraying barrel 401. The discharge port of the spraying barrel 401 is connected to a rubber tube 3.

[0033] In one embodiment, a fastening rope (not shown in the figures) is further included, one end of which is fixed to the nozzle component.

[0034] In this embodiment, during the spraying process, the two ends of the two steel wire rope supports are first fixed to the top and bottom of the air shaft 6 according to the distance between the two slots, and then the nozzle collection plate is sent into the air shaft 6 through the pressurized air outlet reserved hole 5, and the two support ropes are respectively clamped in the two slots of the nozzle collection plate. During this process, the nozzle collection plate can be fixed by manually pulling the tightening rope. After the nozzle collection plate is placed in the slot, the switch valve of the spraying device is opened, the pressure pump is started, and the spray material enters the spray manifold, nozzle guide tube and nozzle in sequence from the spray barrel through the rubber tube. At the same time, the tightening rope is slowly released, and the paint is sprayed onto the surface of the cement mortar layer through the nozzle, forming a sealing film layer on the surface of the cement mortar layer 7. During the spraying process, those skilled in the art can adjust the civil engineering pressurized air shaft inner wall spraying construction assembly to the appropriate pressurized air outlet reserved hole according to the length of the rubber tube, and then continue spraying according to the above-mentioned spraying process.

[0035] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A construction assembly for spraying the inner wall of a pressurized air supply shaft for civil engineering, characterized in that: The civil construction pressurized air shaft inner wall spraying construction assembly includes a support member, a nozzle component, a rubber tube and a spraying device, the nozzle component is connected to the spraying device through the rubber tube, and the support member is arranged in the air shaft; During the spraying construction process, the nozzle component is placed in the air shaft through the reserved hole of the pressurized air supply port. The spraying device filled with paint reaches the nozzle component through a rubber tube. The nozzle component is supported and slides down by a support. During the sliding process of the nozzle component, the paint is sprayed onto the inner wall of the air shaft, forming a sealing film layer inside the paint.

2. The construction pressurized air shaft inner wall spraying construction assembly according to claim 1 is characterized in that: The nozzle component includes a nozzle collection plate, several nozzle guide tubes, nozzles connected to the nozzle guide tubes, and a nozzle collection pipe; one end of the nozzle collection pipe is connected to the rubber tube, one end of the nozzle guide tube is connected to the other end of the nozzle collection pipe, and the other end of the nozzle guide tube is arranged at a certain interval on the side of the nozzle collection plate.

3. The civil engineering pressurized air supply shaft inner wall spraying construction assembly according to claim 2 is characterized in that: The top of the nozzle is provided with a plurality of fine holes.

4. The civil engineering pressurized air supply shaft inner wall spraying construction assembly according to claim 2, characterized in that: A plurality of slots are provided on the nozzle collecting plate.

5. The civil construction pressurized air shaft inner wall spraying construction assembly according to claim 4 is characterized in that: The nozzle collecting plate is circular and has two slots arranged thereon, and the two slots are centrally symmetrical.

6. The civil engineering pressurized air shaft inner wall spraying construction assembly according to claim 1, characterized in that: The supporting members are a plurality of steel ropes, one end of the supporting member is fixed to the top of the air shaft, and the other end of the supporting member is fixed to the bottom of the air shaft.

7. The construction pressurized air shaft inner wall spraying construction assembly according to claim 1, characterized in that: The spraying device comprises a spraying barrel, a pressure pump and a switch valve. The pressure pump is connected to the spraying barrel, and the switch valve is arranged on the spraying barrel.

8. The civil engineering pressurized air supply shaft inner wall spraying construction assembly according to claim 1, characterized in that: The utility model further comprises a fastening rope, one end of which is fixed on the nozzle component.

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