Multifunctional composite waterproof paint spraying device

Abstract

The utility model discloses a multifunctional composite waterproof paint spraying device, which relates to the technical field of paint spraying and comprises a spray gun body, a stirring pressurizing ring, a spraying pressurizing ring, a homogenizing pressurizing chamber, a pressurizing stirring chamber, a nozzle adjusting block and the like. First stirring and pressurizing are completed under the high-frequency vibration effect of the stirring and pressurizing ring, then the liquid flows through the homogenizing and pressurizing chamber to be subjected to secondary homogenizing and pressurizing, finally the liquid is sprayed out through the conical nozzle, the nozzle opening degree is adjusted by the nozzle adjusting block and the telescopic block through deformation of the piezoelectric material, and accurate control over flow and pressure is achieved. The device adopts three-stage pressurization and multi-time homogenization treatment, the uniformity, the atomization effect and the spraying efficiency of the coating are remarkably improved, the device can be flexibly connected with external equipment through the connecting block, the device is suitable for large-area construction and high-precision coating spraying, the construction efficiency is improved, and material waste and environmental pollution are reduced.

Description

Technical Field

[0001] This utility model relates to the field of coating spraying technology, specifically a multifunctional composite waterproof coating spraying device. Background Technology

[0002] Currently, waterproof coating spraying equipment is widely used in industrial and construction projects. Its design directly affects spraying efficiency, coating quality, and material utilization. However, some problems in the existing technology have not been effectively solved.

[0003] Patent CN112916273B discloses a polyurethane waterproof coating spraying device with a coating recovery function. It recovers residual coating through an annular groove and recovery holes, prevents nozzle clogging by combining air jets, and uses a fan-shaped plate to adjust the spraying range, thereby saving raw materials and improving spraying effect. Although this design solves the problems of coating waste and nozzle clogging to some extent, it still has the following limitations: Insufficient spraying uniformity: The device mainly achieves spraying range adjustment through mechanical structure, but does not consider homogenization of coating particles, which may lead to uneven coating thickness or uneven coating distribution; Inaccurate spraying flow control: The device fails to dynamically adjust the coating flow and spraying pressure, making it difficult to adapt to the diverse needs in complex construction scenarios; Limited applicability: Its design is optimized for polyurethane coatings, but its adaptability to other types of waterproof coatings, especially high-viscosity coatings, is poor.

[0004] Patent CN114082575B discloses a multifunctional automatic spraying device that achieves multiple coverage sprayings through multiple independent nozzle groups and a rotary spraying function, thereby increasing the coating thickness. Furthermore, the device utilizes an electric telescopic rod and a drive motor to adjust the nozzle position, adapting to the spraying needs of different surface shapes. Although this design significantly improves coating coverage and spraying efficiency, it still has the following shortcomings: Insufficient spraying precision: While multiple coverage sprayings can increase coating thickness, there is a lack of support for precise control of the particle size, flow rate, and pressure of the sprayed particles, resulting in low spraying precision; Clogging problems are not completely resolved: Under high-frequency use, the nozzles may still clog due to the aggregation of paint particles or high-viscosity paint, affecting the continuous operation of the equipment; High energy consumption: Due to the use of multiple drive motors and rotary nozzle groups, the device has high energy consumption, which is not conducive to energy-saving and environmentally friendly applications. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a multifunctional composite waterproof coating spraying device to solve the above-mentioned problems.

[0006] The purpose of this utility model is achieved through the following technical solution: A multifunctional composite waterproof coating spraying device includes a spray gun body. A stirring and pressurizing ring and a spraying pressurizing ring are fixedly connected inside the spray gun body. Multiple nozzle adjustment blocks are fixedly connected to the end of the spray gun body away from the stirring and pressurizing ring. The multiple nozzle adjustment blocks are arranged in a circular array around the axis of the spray gun body. Detection ring one and detection ring two are fixedly connected inside the stirring and pressurizing ring and the spraying pressurizing ring, respectively. Multiple homogenizing holes are opened along the axial direction of the spray gun body on the stirring and pressurizing ring, the spraying pressurizing ring, the nozzle adjustment blocks, detection ring one, and detection ring two. The stirring and pressurizing ring, the spraying pressurizing ring, the nozzle adjustment blocks, detection ring one, and detection ring two are all made of piezoelectric material. A feed pipe is fixedly connected to the end of the spray gun body away from the spray gun body. The feed pipe is connected to an external feeding system.

[0007] The spray gun body has a through hole at the end away from the feed pipe, and the inner wall of the through hole is fixedly connected to the outer end of the nozzle adjustment block. Multiple nozzle adjustment blocks are fixedly connected to each other.

[0008] The telescopic block is made of flexible material, and the homogeneous hole is a conical hole with the larger diameter end facing the nozzle adjustment block.

[0009] A one-way valve is fixedly connected inside the feed pipe, and the one-way valve is open in the direction from the feed pipe to the spray gun body. Multiple connecting blocks are fixedly connected to the outer end of the spray gun body.

[0010] The connecting block has an internal thread for fixed connection with external equipment. The part of the inner wall of the spray gun body between the stirring and pressurizing ring and the feed pipe is the pressurizing and stirring chamber, which is used to pressurize and stir the paint.

[0011] The section of the inner wall of the spray gun body located between the stirring and pressurizing ring and the spraying pressurizing ring is the homogenization and pressurization chamber, which is used to homogenize and pressurize the coating.

[0012] The part of the inner wall of the spray gun body located between the nozzle adjusting block and the spray pressurizing ring is the pressurizing spray chamber, which is used to pressurize the paint so that the paint is sprayed out between the nozzle adjusting block and the telescopic block.

[0013] The part of the spray gun body located between the nozzle adjustment block and the spray pressure ring has a conical structure, and the end with the smaller diameter of the conical structure is set close to the nozzle adjustment block. The nozzle is formed by the close proximity of multiple nozzle adjustment blocks and telescopic blocks. The nozzle has a conical structure, and the end with the larger diameter of the conical structure is set away from the spray pressure ring, so that the paint can be better sprayed from the nozzle and atomized evenly.

[0014] The strain direction of the multiple nozzle adjustment blocks is the direction in which the nozzle adjustment blocks point to the axis of the spray gun body.

[0015] The beneficial effects of this utility model are:

[0016] 1. Through multiple pressurization and homogenization processes involving the stirring pressurization ring, the spraying pressurization ring, and the homogenization pressurization chamber, the paint particles are more evenly distributed before spraying, avoiding the problem of uneven paint mixing in traditional spraying devices. The design of the conical homogenization hole further optimizes the paint flow characteristics, ensuring a more delicate and uniform paint spraying effect.

[0017] 2. The combined design of the nozzle adjustment block and the telescopic block, along with the strain adjustment function of the piezoelectric material, allows for dynamic adjustment of the nozzle opening according to actual needs, thereby flexibly controlling the spray flow and pressure. A larger nozzle opening is suitable for large-area construction, while a smaller nozzle opening can provide higher spray pressure, suitable for fine coating construction.

[0018] 3. The one-way valve in the feed pipe ensures that the paint flows in a single direction, avoiding interference from backflow or back pressure. This design improves the paint delivery efficiency and ensures the stable operation of the spraying device, making it particularly suitable for high-viscosity paints or complex construction conditions.

[0019] 4. The three-stage pressurization design of the pressurized mixing chamber, homogenization pressurization chamber, and pressurized spraying chamber allows the coating to be gradually pressurized before spraying. This not only effectively increases the spraying pressure but also maintains the fluidity and uniformity of the coating during the spraying process, enhancing the adhesion and durability of the waterproof coating.

[0020] 5. The conical nozzle design improves the atomization efficiency of the paint by concentrating the paint flow path, ensuring that the paint forms a uniform mist distribution after spraying. This atomization effect significantly improves the paint coverage and construction quality, and is especially suitable for complex or precision surfaces.

[0021] 6. The internal thread design of the connecting block supports connection with external equipment such as robotic arms and handles, which can adapt to various scenarios such as automated construction, large-area spraying and high-precision spraying. The modular design of the device further enhances the versatility and applicability of the spraying equipment.

[0022] 7. The conical design of the homogeneous orifice avoids the accumulation and clogging of paint particles in the nozzle, while enhancing the flow stability of the paint. The flexible material expansion and contraction characteristics of the nozzle adjustment block further reduce operational failures during the spraying process, making the device more reliable.

[0023] 8. Through multi-stage pressurization, dynamic adjustment of nozzle opening, and expansion functions for external equipment, the spraying device can quickly adapt to different construction needs, greatly improving construction efficiency and reducing labor and time costs.

[0024] 9. Precise flow control and atomization effect reduce paint waste and environmental pollution during the spraying process. In addition, the high-efficiency energy conversion characteristics of piezoelectric materials further reduce energy consumption, making the device more energy-efficient and environmentally friendly. Attached Figure Description

[0025] Figure 1 This is an overall structural diagram of the present invention;

[0026] Figure 2 This is an exploded view of the entire utility model;

[0027] Figure 3 This is a partial exploded view of the present invention;

[0028] Figure 4 This is a front view of the present invention;

[0029] Figure 5 For the present utility model Figure 4 Sectional view of AA;

[0030] Figure 6 For the present utility model Figure 5 BB section view;

[0031] Figure 7 For the present utility model Figure 5 CC section view;

[0032] Figure 8 This is a structural diagram of the present utility model.

[0033] Explanation of the labels in the diagram

[0034] 1. Spray gun body; 2. Stirring and pressurizing ring; 3. Spraying pressurizing ring; 4. Nozzle adjusting block; 5. Detection ring one; 6. Detection ring two; 7. Homogenizing hole; 8. Feed pipe; 9. Telescopic block; 10. Connecting block; 11. Pressurized stirring chamber; 12. Homogenizing and pressurizing chamber; 13. Pressurized spraying chamber; 14. Nozzle. Detailed Implementation

[0035] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0036] It should be noted that the directional concepts of "left", "right", "up", "down", "front", "back", "inner", and "outer" in the following scheme are all relative directions, and will not be listed one by one here.

[0037] Example 1

[0038] like Figures 1 to 8As shown, this embodiment provides a multifunctional composite waterproof coating spraying device. The overall structure includes a spray gun body 1, a stirring and pressurizing ring 2, a spraying and pressurizing ring 3, a nozzle adjusting block 4, a detection ring 1 5, a detection ring 2 6, a homogenizing hole 7, a feed pipe 8, a telescopic block 9, a connecting block 10, a pressurizing and stirring chamber 11, and a pressurizing spraying chamber 13. The specific structure and function of each component are described in detail below:

[0039] The spray gun body 1 is the core component of the overall structure, used to house and support key components such as the stirring and pressurizing ring 2, the spraying pressurizing ring 3, the detection ring 1 5, and the detection ring 2 6.

[0040] The stirring and pressurizing ring 2 and the spraying pressurizing ring 3 are respectively fixed inside the spray gun body 1 and arranged along the axis of the spray gun body 1. The stirring and pressurizing ring 2 is used to stir and pressurize the paint for the first time, while the spraying pressurizing ring 3 is responsible for the second pressurization and assists in homogeneous spraying.

[0041] The nozzle adjustment blocks 4 are distributed at the end of the spray gun body 1 away from the stirring and pressurizing ring 2, and are arranged in a circular array around the axis of the spray gun body 1. The nozzle adjustment blocks 4 are connected by telescopic blocks 9 made of flexible material. The telescopic blocks 9 can achieve elastic deformation and are used to adjust the nozzle opening.

[0042] Homogenization holes 7 are set on the stirring and pressurizing ring 2, the spraying pressurizing ring 3, the first detection ring 5 and the second detection ring 6. Each homogenization hole 7 is a conical hole with the larger diameter facing the nozzle adjustment block 4, which is used to enhance the homogenization effect of the coating.

[0043] The feed pipe 8 is fixedly connected to the other end of the spray gun body 1 and connected to the external feeding system to ensure that the paint is continuously supplied to the inside of the spray gun body 1.

[0044] The pressurized mixing chamber 11 is located in the space between the mixing and pressurizing ring 2 and the feed pipe 8, and is used for the initial pressurization and mixing of the coating.

[0045] The pressurized spraying chamber 13 is located between the spraying pressurization ring 3 and the nozzle adjusting block 4. It is used to pressurize the paint in the final stage to ensure that it is sprayed evenly between the nozzle adjusting block 4 and the telescopic block 9.

[0046] The connecting block 10 is located at the outer end of the spray gun body 1. The connecting block 10 has an internal thread for fixed connection with external equipment, such as a robot or handle.

[0047] Work process

[0048] The paint is fed into the spray gun body 1 from the external feeding system through the feed pipe 8 and enters the pressurized mixing chamber 11.

[0049] The coating undergoes initial mixing and pressurization within the pressurized mixing chamber 11 under the influence of high-frequency energy generated by the vibration of the mixing and pressurizing ring 2.

[0050] The homogenized and enhanced pressurized coating flows through the homogenization hole 7 on the stirring pressurization ring 2, and after being further homogenized by the action of the conical hole, it enters the spraying pressurization ring 3.

[0051] Finally, the pressurized and atomized coating undergoes a second pressurization within the spray pressurizing ring 3, and is homogenized again through the homogenization holes 7 on it before entering the pressurized spraying chamber 13. The coating is subjected to additional pressure within the pressurized spraying chamber 13 to ensure uniform spraying effect.

[0052] The nozzle adjustment and the final sprayed paint are sprayed out between the nozzle adjustment block 4 and the telescopic block 9. By adjusting the opening of the nozzle adjustment block 4, the spray flow rate and spray pressure can be controlled, thereby achieving uniform atomization of the paint.

[0053] As needed, external devices (such as robotic arms) can be fixed via connecting block 10 to enable flexible applications in multiple scenarios.

[0054] The high-efficiency homogenizing and pressurizing mixing ring 2 and the spraying pressurizing ring 3 homogenize and pressurize multiple times through the homogenizing hole 7, so that the coating can achieve a high degree of uniformity. The step-by-step pressurization design of the pressurizing mixing chamber 11 and the pressurizing spraying chamber 13 ensures that the coating has sufficient spraying pressure.

[0055] The combination design of the precision spray control nozzle adjustment block 4 and the telescopic block 9 allows for adjustment of the nozzle opening according to requirements, enabling both high-flow, large-area spraying and low-flow, precision spraying.

[0056] The internal thread design of the connecting block 10, which is suitable for use in multiple scenarios, facilitates the connection of the spraying device with external equipment such as robotic arms, thereby enhancing the versatility and flexibility of the device.

[0057] The anti-clogging and highly stable conical homogeneous orifice 7 design effectively prevents paint particles from clogging while ensuring stable flow, further improving the spraying effect.

[0058] This embodiment achieves efficient, uniform, and precise spraying of composite waterproof coatings through innovative structural design. It also features strong versatility and wide adaptability, providing a high-quality solution for various industrial and architectural spraying applications.

[0059] Example 2

[0060] like Figures 1 to 8 As shown, this embodiment further optimizes and expands the structure and function of the multifunctional composite waterproof coating spraying device based on embodiment 1. The improvements focus on controlling the flow direction of the coating, homogenizing and pressurizing, and designing the spray outlet. Specifically, it includes the following parts:

[0061] A one-way valve is fixedly installed inside the feed pipe 8. The one-way valve is directed in the direction from the feed pipe 8 to the spray gun body 1, ensuring that the paint flows in a single direction and preventing backflow or pressure loss.

[0062] The one-way valve, in conjunction with the external feeding system, effectively improves the efficiency and stability of paint entering the spray gun body 1.

[0063] The homogenization and pressurization chamber 12 is located between the stirring and pressurization ring 2 and the spraying pressurization ring 3 on the inner wall of the spray gun body 1, and is used to perform secondary pressurization and homogenization treatment on the coating.

[0064] This structural design effectively increases the homogeneity of the coating before spraying, making the coating more suitable for the high-efficiency spraying requirements of waterproof coatings.

[0065] The nozzle 14 is composed of multiple nozzle adjustment blocks 4 and telescopic blocks 9. The nozzle 14 has a conical structure, with the smaller diameter end close to the nozzle adjustment block 4.

[0066] The tapered design helps concentrate paint flow, ensuring that the paint is fully pressurized before being sprayed.

[0067] The strain direction of the nozzle adjustment block 4 is designed to point towards the axis of the spray gun body 1, which can precisely control the opening of the nozzle 14 through the deformation of the piezoelectric material.

[0068] Multiple connecting blocks 10 are fixedly connected to the outer end of the spray gun body 1. The connecting blocks 10 are provided with internal threads for fixing external equipment (such as robotic arms or handles).

[0069] External devices can enhance the adaptability of the spraying equipment in complex scenarios, such as large-area construction or high-precision coating spraying.

[0070] Work process

[0071] The paint is introduced into the spray gun body 1 through the feed pipe 8. The one-way valve ensures that the paint can only flow in one direction, avoiding backflow caused by fluctuations in the external feeding system, thereby improving the stability of the feeding.

[0072] The coating first enters the pressurized mixing chamber 11, where it undergoes initial mixing and pressurization under the high-frequency vibration of the mixing and pressurizing ring 2. Subsequently, the coating flows through the homogenization hole 7 into the homogenization and pressurization chamber 12 for more precise homogenization and pressurization.

[0073] The homogeneous pressurization chamber 12, through the higher vibration force provided by the spray pressurization ring 3, makes the particle distribution of the coating more uniform.

[0074] When the coating passes through the pressurized spray chamber 13, the coating pressure is further increased, and it is finally sprayed out through the nozzle 14. The spray flow rate and particle size are controlled by the strain of the nozzle regulating block 4.

[0075] When precise spraying is required, the opening of the nozzle 14 can be reduced to generate higher spraying pressure, which is suitable for the construction of fine coatings; when a large flow rate is required, it can be achieved by expanding the opening of the nozzle 14.

[0076] When in use, the paint is introduced into the spray gun body 1 through the feed pipe 8, and then the stirring and pressurizing ring 2 and the spraying pressurizing ring 3 are made to vibrate at high frequency. During the vibration process, the stirring and pressurizing ring 2 and the spraying pressurizing ring 3 pressurize, homogenize and stir the paint.

[0077] As the spraying pressurizing ring 3 and the stirring pressurizing ring 2 vibrate, under the action of the homogenizing hole 7, external pressure, and the one-way valve in the feed pipe 8, the coating material begins to flow from the pressurizing stirring chamber 11 to the homogenizing pressurizing chamber 12, and then passes through the pressurizing spraying chamber 13 and is sprayed out from the nozzle 14.

[0078] The coating is first stirred in the pressurized mixing chamber 11, then stirred and pressurized a second time in the homogenized pressurized chamber 12, and then pressurized and stirred a third time in the pressurized spraying chamber 13.

[0079] The coating is homogenized by each homogenizing hole 7 as it passes through the homogenizing hole 7, and the coating is mixed more evenly through multiple homogenizations.

[0080] During the vibration of the stirring and pressurizing ring 2 and the spraying and pressurizing ring 3, the detection ring 5 and the detection ring 6 receive ultrasonic waves from the spraying and pressurizing ring 3 and the stirring and pressurizing ring 2, respectively, and then detect the state and flow rate of the coating flowing between the detection ring 5 and the detection ring 6. If the coating mixing uniformity meets the requirements, the detection ring 5 and the detection ring 6 will also vibrate to strengthen the stirring and homogenization of the coating. At the same time, the vibration added to the detection ring 5 and the detection ring 6 can increase the coating pressure.

[0081] When the paint is sprayed out from the nozzle 14, the deformation degree of multiple nozzle adjustment blocks 4 is adjusted as needed, thereby adjusting the opening of the nozzle 14. When the flow rate needs to be increased, the opening of the nozzle 14 is increased, and vice versa. A small flow rate can generate a higher spray pressure.

[0082] During use, various devices, such as robotic arms and handles, can be connected to the connecting block 10 as needed.

[0083] During the spraying process, the stirring and pressurizing ring 2 and the spraying pressurizing ring 3 generate high-frequency vibrations, which are transmitted to the detection ring 5 and the detection ring 6 in the form of ultrasonic waves. The following is a detailed description of the working principles of the detection ring 5 and the detection ring 6:

[0084] Detection ring 5 receives ultrasonic signals from the spraying pressurization ring 3, while detection ring 6 receives ultrasonic signals from the stirring pressurization ring 2. By analyzing the state and characteristics of the coating during the ultrasonic wave propagation process in real time, detection rings 5 ​​and 6 can obtain data on the coating's flow rate, pressure, and uniformity.

[0085] If uneven particle distribution or excessive flow rate fluctuations are detected in the coating, the system determines that the current coating mixing uniformity does not meet the set requirements.

[0086] When the coating uniformity is insufficient, detection ring 5 and detection ring 6 begin to vibrate under the command of the control system. The vibration of detection ring 5 and detection ring 6 generates additional high-frequency energy, which further agitates and homogenizes the coating flowing between them.

[0087] This vibration can effectively break up any particle clusters that may exist in the coating, resulting in higher uniformity and improved flow properties.

[0088] The vibrations of detection ring 5 and detection ring 6 also exert additional pressure on the coating, giving it higher kinetic energy as it flows through the pressurized mixing chamber 11, the homogenized pressurized chamber 12, and the pressurized spraying chamber 13. This increased pressure helps the coating achieve better atomization at the spray outlet, further optimizing the spraying quality.

[0089] During the operation of detection ring 5 and detection ring 6, ultrasonic signals continuously monitor the state of the coating, providing real-time feedback on the current mixing uniformity and flow rate. If the system detects that the uniformity has met the requirements, detection ring 5 and detection ring 6 will stop vibrating, transferring the vibration to the stirring and pressurizing ring 2 and the spraying pressurizing ring 3, thereby avoiding energy waste.

[0090] The bidirectional detection design of detection ring 5 and detection ring 6 can dynamically monitor the flow state and mixing effect of the coating at different stages, ensuring that the coating is always in a high-quality mixed state throughout the spraying process, while preventing nozzle clogging or poor spraying effect caused by uneven coating.

[0091] By utilizing the ultrasonic detection, vibration stirring, and pressure enhancement functions of detection ring 5 and detection ring 6, the system achieves efficient monitoring and dynamic adjustment of the coating mixing state, significantly improving the homogeneity of the coating and the spraying quality. Combined with the vibration effects of stirring and pressurizing ring 2 and spraying pressurizing ring 3, this design ensures the efficient operation and stability of the entire spraying system under complex construction conditions.

[0092] The connecting block 10 can be connected to external equipment such as robotic arms to achieve automated spraying, improve construction efficiency and flexibility, and is suitable for different construction scenarios.

[0093] The one-way valve design ensures that the paint can only flow into the spray gun body 1 from the feed pipe 8 in one direction, effectively avoiding pressure loss caused by paint backflow, and improving feeding efficiency and device stability.

[0094] The addition of the homogenizing pressurization chamber 12 allows the coating to undergo two pressurization treatments before spraying, forming a graded pressurization structure with the initial pressurization of the pressurized mixing chamber 11, which significantly improves the homogeneity of the coating and the spraying effect.

[0095] The optimized design of the conical nozzle 14, combined with the strain direction control of the nozzle adjustment block 4, makes the adjustment of paint spraying flow rate and pressure more flexible, significantly enhances the atomization effect of the paint, and makes the spraying range more uniform.

[0096] By combining the connecting block 10 with external equipment, the device can be applied to a variety of complex construction scenarios, such as robotic arm assistance during large-area construction or high-precision spraying requirements.

[0097] Example 2, by optimizing flow control, homogenization pressurization, and spray outlet design, not only improved the coating spraying effect but also enhanced the adaptability and construction efficiency of the device.

[0098] This embodiment further improves the structure and function of the spraying device, especially in terms of coating flow direction control, spraying accuracy and device adaptability, providing comprehensive support for the application of the multifunctional composite waterproof coating spraying device in different scenarios.

[0099] The above description is only a preferred embodiment of the present utility model. It should be understood that the present utility model is not limited to the form disclosed herein and should not be regarded as an exclusion of other embodiments. It can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present utility model should be protected within the scope of the appended claims.

Claims

1. A multifunctional composite waterproof coating spraying device, characterized in that, The spray gun includes a spray gun body (1), within which a stirring and pressurizing ring (2) and a spraying pressurizing ring (3) are fixedly connected. Multiple nozzle adjusting blocks (4) are fixedly connected to one end of the spray gun body (1) away from the stirring and pressurizing ring (2). These multiple nozzle adjusting blocks (4) are arranged in a circular array around the axis of the spray gun body (1). Detection ring one (5) and detection ring two (6) are fixedly connected to the stirring and pressurizing ring (2) and the spraying pressurizing ring (3), respectively. Multiple homogenizing holes (7) are provided along the axial direction of the spray gun body (1) on the pressure ring (2), spray pressurizing ring (3), detection ring one (5), and detection ring two (6). The stirring pressurizing ring (2), spray pressurizing ring (3), nozzle adjusting block (4), detection ring one (5), and detection ring two (6) are all made of piezoelectric material. The end of the spray gun body (1) away from the spray gun body (1) is fixedly connected to the feed pipe (8), and the feed pipe (8) is connected to the external feeding system.

2. The multifunctional composite waterproof coating spraying device according to claim 1, characterized in that: The spray gun body (1) has a through hole at one end away from the feed pipe (8), and the inner wall of the through hole is fixedly connected to the outer end of the nozzle adjustment block (4). A telescopic block (9) is fixedly connected between multiple nozzle adjustment blocks (4).

3. The multifunctional composite waterproof coating spraying device according to claim 2, characterized in that: The telescopic block (9) is made of flexible material, and the homogeneous hole (7) is a conical hole, with the larger diameter end of the conical hole facing the nozzle adjustment block (4).

4. The multifunctional composite waterproof coating spraying device according to claim 3, characterized in that: A one-way valve is fixedly connected inside the feed pipe (8), and the direction of the one-way valve is the direction from the feed pipe (8) to the spray gun body (1). Multiple connecting blocks are fixedly connected to the outer end of the spray gun body (1).

5. The multifunctional composite waterproof coating spraying device according to claim 4, characterized in that: The connecting block is provided with an internal thread for fixed connection with external equipment. The part of the inner wall of the spray gun body (1) between the stirring and pressurizing ring (2) and the feed pipe (8) is a pressurizing and stirring chamber for pressurizing and stirring the coating.

6. The multifunctional composite waterproof coating spraying device according to claim 5, characterized in that: The part of the inner wall of the spray gun body (1) between the stirring and pressurizing ring (2) and the spraying pressurizing ring (3) is a homogenization and pressurization chamber, which is used to homogenize and pressurize the coating.

7. The multifunctional composite waterproof coating spraying device according to claim 6, characterized in that: The part of the inner wall of the spray gun body (1) between the nozzle adjustment block (4) and the spray pressurizing ring (3) is a pressurized spraying chamber, which is used to pressurize the paint so that the paint is sprayed out between the nozzle adjustment block (4) and the telescopic block (9).

8. The multifunctional composite waterproof coating spraying device according to claim 7, characterized in that: The part of the spray gun body (1) between the nozzle adjustment block (4) and the spray pressure ring (3) is a conical structure, and the end with the smaller diameter of the conical structure is set close to the nozzle adjustment block (4). The nozzles formed by the close proximity of the nozzle adjustment blocks (4) and the telescopic blocks (9) are conical structures, and the end with the larger diameter of the conical structure is set away from the spray pressure ring (3) so that the paint can be sprayed out from the nozzle and atomized evenly.

9. A multifunctional composite waterproof coating spraying device according to claim 8, characterized in that: The strain direction of the plurality of nozzle adjustment blocks (4) is the direction in which the nozzle adjustment block (4) points to the axis of the spray gun body (1).

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