A uniform spraying device for an interface agent in an external wall insulation system

Abstract

This utility model relates to the field of interface agent spraying technology, and discloses a uniform spraying device for interface agents used in external wall insulation systems. The device includes a spray gun, a drive box fixedly mounted on the top of the spray gun, and a material leveling mechanism and a flow guiding mechanism on the top of the spray gun. The material leveling mechanism includes a bent rod hinged to the outer wall of the spray gun, and a nozzle fixedly mounted on the left end of the bent rod. A motor is fixedly mounted on the inner wall of the drive box, and a rotating shaft is fixedly mounted on the output end of the motor. A gear plate is fixedly mounted on the outer wall of the rotating shaft. In this utility model, the bent rod drives the nozzle to swing up and down repeatedly, allowing the interface agent to be sprayed evenly on the wall surface, eliminating the need for manual back-and-forth swinging of the spray gun. This not only ensures uniform spraying of the interface agent but also reduces the labor intensity of workers, allowing them to hold the spray gun more stably for spraying operations, thereby improving the uniformity of the interface agent spraying.

Description

Technical Field

[0001] This utility model relates to the field of interface agent spraying technology, and in particular to a uniform spraying device for interface agents used in external wall insulation systems. Background Technology

[0002] Interface agents are functional coatings used to enhance the adhesion between building materials. They are usually liquid or cream-like and are composed of polymers, cement-based materials, and additives. In the construction industry, interface agents are widely used in exterior wall insulation systems, tile laying, concrete repair, and other scenarios. They can effectively reduce problems such as hollowing and falling off, and improve the durability of the project.

[0003] In the construction of external wall insulation systems, the spray gun is a key tool for spraying interface agents, especially when dealing with large-area substrates (such as concrete walls and brick walls). It can greatly improve construction efficiency. Spraying can ensure that the interface agent forms a continuous film, avoiding the problems of missed coating or uneven thickness that may occur with traditional roller coating.

[0004] However, traditional spray gun application requires workers to hold the spray gun and swing it back and forth to achieve uniform spraying of the interface agent. However, prolonged arm-raising operations can easily lead to worker fatigue. As working time increases, operational stability decreases, and it is difficult to maintain a constant swing frequency and amplitude, especially when working at heights or on large areas. This can easily result in uneven spraying, leading to inconsistent thickness of the interface agent coating. This not only affects the adhesion of subsequent insulation materials but also increases the risk of material waste and rework. Therefore, a device for uniformly spraying interface agents for external wall insulation systems is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a uniform spraying device for interface agents in external wall insulation systems, which aims to solve the problem mentioned in the prior art that "it is difficult to ensure uniform spraying of interface agents by manually swinging the spray gun".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a uniform spraying device for an interface agent in an external wall insulation system, comprising a spray gun, a drive box fixedly installed on the top of the spray gun, and a material leveling mechanism and a flow guiding mechanism provided on the top of the spray gun.

[0007] The material leveling mechanism includes a bent rod hinged to the outer wall of the spray gun. A nozzle is fixedly installed at the left end of the bent rod. A motor is fixedly installed on the inner wall of the drive box. A rotating shaft is fixedly installed at the output end of the motor. A gear plate is fixedly installed on the outer wall of the rotating shaft. A connecting rod is hinged to the outer wall of the gear plate.

[0008] As a further description of the above technical solution:

[0009] The air guiding mechanism includes a duct, which is fixedly installed on the outer wall of the drive box. A rotating rod is rotatably connected to the inner wall of the duct, and a fan blade is fixedly installed on the outer wall of the rotating rod. A flexible hose is fixedly installed on the outer wall of the duct.

[0010] As a further description of the above technical solution:

[0011] A gear is fixedly installed at one end of the rotating rod near the motor, and the gear meshes with the gear plate.

[0012] As a further description of the above technical solution:

[0013] A spiral guide bar is fixedly installed on the inner wall of the bent rod.

[0014] As a further description of the above technical solution:

[0015] The end of the hose furthest from the air duct is fixedly installed on the outer wall of the bent rod. The bent rod is a hollow tube with an opening at the left end, and the bent rod is connected to the interior of the air duct through the hose.

[0016] As a further description of the above technical solution:

[0017] The end of the connecting rod away from the gear plate is hinged to the outer wall of the bent rod.

[0018] As a further description of the above technical solution:

[0019] The spiral guide bar is a spiral-shaped convex bar.

[0020] As a further description of the above technical solution:

[0021] The rotating rod and the air duct are coaxial, and the fan blades are located inside the air duct.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the interface agent can be evenly sprayed on the wall surface by the up-and-down swing of the nozzle driven by the bent rod, eliminating the need for manual back-and-forth swinging of the spray gun. This not only ensures even spraying of the interface agent but also reduces the labor intensity of the workers, allowing them to hold the spray gun more stably for spraying operations, thereby improving the uniformity of the interface agent spraying.

[0024] 2. In this utility model, the rotation of the fan blades, in conjunction with the hose, bent rod and spiral guide strip, can radially stretch the liquid flow sprayed from the nozzle, causing the viscous interface agent to form a thin layer structure, thereby improving the coverage effect of the interface agent and further improving the spray uniformity of the interface agent. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a partial cross-sectional structural diagram of the spray gun of this utility model;

[0027] Figure 3 This is an exploded structural diagram of the bent rod of this utility model.

[0028] Legend:

[0029] 1. Spray gun; 2. Drive box; 3. Material distribution mechanism; 31. Bending rod; 32. Nozzle; 33. Motor; 34. Rotating shaft; 35. Gear plate; 36. Connecting rod; 4. Flow guiding mechanism; 41. Air duct; 42. Rotating rod; 43. Fan blade; 44. Hose; 45. Gear; 46. Spiral guide strip. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 - Figure 3 One embodiment of this utility model is a uniform spraying device for an interface agent in an external wall insulation system, comprising a spray gun 1, a drive box 2 fixedly installed on the top of the spray gun 1, and a uniform material mechanism 3 and a flow guiding mechanism 4 provided on the top of the spray gun 1.

[0032] Reference Figure 1 - Figure 3 The material leveling mechanism 3 includes a bent rod 31, which is a hollow tube open at the left end. The bent rod 31 is hinged to the outer wall of the spray gun 1, and a nozzle 32 is fixedly installed at the left end of the bent rod 31. Figure 1 As can be seen, the nozzle 32 is connected to the output end of the spray gun 1 by a pipe. The reciprocating rotation of the bent rod 31 causes the nozzle 32 to swing up and down repeatedly. This up-and-down swinging of the nozzle 32 allows the interface agent to be sprayed evenly onto the wall surface. A motor 33 is fixedly installed on the inner wall of the drive box 2. A rotating shaft 34 is fixedly installed on the output end of the motor 33. A geared disc 35 is fixedly installed on the outer wall of the rotating shaft 34. Starting the motor 33 drives the rotating shaft 34 to rotate, which in turn drives the geared disc 35 to rotate synchronously. A connecting rod 36 is hinged to the outer wall of the geared disc 35. Figure 1 and Figure 2As can be seen, the drive box 2 has a through groove on the side near the nozzle 32 for the connecting rod 36 to move. The end of the connecting rod 36 away from the gear plate 35 is hinged to the outer wall of the bent rod 31. When the gear plate 35 rotates, it can drive the bent rod 31 to reciprocate on the outer wall of the spray gun 1 in conjunction with the connecting rod 36.

[0033] Reference Figure 1 - Figure 3 The airflow guiding mechanism 4 includes a duct 41, which is fixedly installed on the outer wall of the drive box 2. Figure 1 and Figure 2 As can be seen, the top of the drive box 2 has a through hole for the fan blades 43 to draw air. A rotating rod 42 is rotatably connected to the inner wall of the air duct 41. The rotating rod 42 and the air duct 41 are coaxial. The fan blades 43 are fixedly installed on the outer wall of the rotating rod 42. When the rotating rod 42 rotates, it will drive the fan blades 43 to rotate synchronously. The fan blades 43 are located inside the air duct 41. A flexible hose 44 is fixedly installed on the outer wall of the air duct 41. The end of the flexible hose 44 away from the air duct 41 is fixedly installed on the outer wall of the bent rod 31. The bent rod 31 is connected to the inside of the air duct 41 through the flexible hose 44. When the fan blades 43 rotate, they will blow air into the flexible hose 44. At this time, the inside of the flexible hose 44... The airflow enters the interior of the bent rod 31, and the airflow inside the bent rod 31 is discharged outward from the opening on the left side of the bent rod 31 under the guidance of the spiral guide strip 46. A gear 45 is fixedly installed at the end of the rotating rod 42 near the motor 33. The gear 45 meshes with the gear disk 35. When the gear disk 35 rotates, the gear 45 meshing with it can drive the rotating rod 42 to rotate on the inner wall of the air duct 41. A spiral guide strip 46 is fixedly installed on the inner wall of the bent rod 31. The spiral guide strip 46 is a spiral convex strip. The spiral guide strip 46 can make the airflow form a high-speed rotating vortex field inside the bent rod 31 and discharge it outward.

[0034] Working principle: During use, the starting motor 33 drives the rotating shaft 34 to rotate. Simultaneously, the rotating shaft 34 drives the gear disc 35 to rotate synchronously. The rotation of the gear disc 35 also drives one end of the connecting rod 36 to rotate around the rotating shaft 34 in a circular motion. At the same time, the other end of the connecting rod 36 pushes and pulls the bent rod 31 back and forth. The bent rod 31 then rotates back and forth on the outer wall of the spray gun 1. This rotation causes the nozzle 32 to swing up and down repeatedly. The up-and-down swinging of the nozzle 32 ensures that the interface agent is evenly sprayed onto the wall surface. At this point, the worker only needs to hold the spray gun 1, eliminating the need to swing it back and forth to evenly spray the interface agent. This not only ensures even spraying of the interface agent but also reduces the worker's workload, allowing for a more stable holding of the spray gun 1 and improving the uniformity of the interface agent spraying.

[0035] As the gear disc 35 rotates, it drives the gear 45 meshing with it to rotate. As the gear 45 rotates, it drives the rotating rod 42 to rotate on the inner wall of the air duct 41. As the rotating rod 42 rotates, it drives the fan blade 43 to rotate synchronously. As the fan blade 43 rotates, it blows air into the hose 44. At this time, the airflow inside the hose 44 enters the interior of the bent rod 31. Under the guidance of the spiral guide strip 46, the airflow inside the bent rod 31 is discharged outward from the opening on the left side of the bent rod 31. The spiral guide strip 46 can discharge the airflow inside the bent rod 31 outward in a spiral shape. At this time, the centrifugal force generated by the vortex field of the high-speed rotating airflow stretches the liquid flow sprayed by the nozzle 32 radially, so that the viscous interface agent forms a thin layer structure, thereby improving the coverage effect of the interface agent and further improving the spray uniformity of the interface agent.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A uniform spraying device for an interface agent for an external wall insulation system, comprising a spray gun (1), characterized in that: The top of the spray gun (1) is fixedly equipped with a drive box (2), and the top of the spray gun (1) is provided with a material leveling mechanism (3) and a flow guiding mechanism (4). The material leveling mechanism (3) includes a bent rod (31), which is hinged to the outer wall of the spray gun (1). A nozzle (32) is fixedly installed at the left end of the bent rod (31). A motor (33) is fixedly installed on the inner wall of the drive box (2). A rotating shaft (34) is fixedly installed at the output end of the motor (33). A gear plate (35) is fixedly installed on the outer wall of the rotating shaft (34). A connecting rod (36) is hinged to the outer wall of the gear plate (35).

2. The uniform spraying device for the interface agent of the external wall thermal insulation system according to claim 1, characterized in that: The flow guiding mechanism (4) includes a duct (41), which is fixedly installed on the outer wall of the drive box (2). A rotating rod (42) is rotatably connected to the inner wall of the duct (41). A fan blade (43) is fixedly installed on the outer wall of the rotating rod (42). A flexible hose (44) is fixedly installed on the outer wall of the duct (41).

3. The uniform spraying device for the interface agent of the external wall thermal insulation system according to claim 2, characterized in that: A gear (45) is fixedly installed at one end of the rotating rod (42) near the motor (33), and the gear (45) meshes with the gear plate (35).

4. The uniform spraying device for the interface agent of the external wall thermal insulation system according to claim 1, characterized in that: A spiral guide strip (46) is fixedly installed on the inner wall of the bent rod (31).

5. A uniform spraying device for an interface agent in an external wall insulation system according to claim 2, characterized in that: The end of the hose (44) away from the air duct (41) is fixedly installed on the outer wall of the bent rod (31). The bent rod (31) is a hollow tube with an opening at the left end. The bent rod (31) is connected to the inside of the air duct (41) through the hose (44).

6. The uniform spraying device for an interface agent in an external wall insulation system according to claim 1, characterized in that: The end of the connecting rod (36) away from the gear plate (35) is hinged to the outer wall of the bent rod (31).

7. The uniform spraying device for an interface agent in an external wall insulation system according to claim 4, characterized in that: The spiral guide bar (46) is a spiral-shaped convex bar.

8. A uniform spraying device for an interface agent in an external wall insulation system according to claim 2, characterized in that: The rotating rod (42) and the air duct (41) are coaxial, and the fan blade (43) is located inside the air duct (41).

Images