Self-mixing suction type coating spray gun
By setting submicron-level air holes at the bottom of the paint spray gun container, the negative pressure generated when the spray gun is started creates air bubbles for stirring, which solves the problem of difficult mixing of paint in the paint spray gun container, and achieves uniform mixing of paint and stable spraying effect.
Patent Information
- Application Number
- CN202422813737.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-19
AI Technical Summary
After installation, the paint in the spray gun is difficult to stir again, causing paint to settle and accumulate, which may clog the suction tube and nozzle, affecting the spraying effect.
A self-mixing suction-type paint spray gun is designed. By setting submicron-level air holes at the bottom of the inner barrel of the spray gun, the negative pressure generated when the spray gun is started will form air bubbles, thereby achieving self-stirring of the paint and ensuring uniform mixing of the paint.
No additional power is required to achieve uniform mixing of paint, avoiding paint deposition and blockage, and ensuring spraying quality.
Smart Images
Figure CN223475288U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of spray guns, specifically relating to a self-mixing suction type paint spray gun. Background Technology
[0002] Existing paint spray gun structures mainly include three types: suction spray guns, gravity spray guns, and pressure-feed spray guns.
[0003] The working principle of a suction spray gun is to use a high-speed airflow to create a localized vacuum in the spray gun. The resulting pressure draws the paint from the container to the nozzle, where it is atomized and sprayed out. This principle is suitable for situations where specific paint film thickness requirements need to be met.
[0004] Gravity spray guns use gravity to draw paint from the container to the nozzle, where it is then atomized by airflow and sprayed out. This type of spray gun is generally suitable for applications requiring small quantities and frequent application.
[0005] Pressure-feed spray guns require a paint pressurization tank, which allows paint to be supplied to several spray guns simultaneously under pressure. This principle is suitable for applications involving large volumes and continuous operation.
[0006] In addition, there are electrostatic spray guns, whose working principle mainly includes three processes: electric field dispersion, electrostatic adsorption, and coating curing. Electrostatic spray guns generate a high-voltage electric field to disperse the paint into fine particles, forming a spray. These fine particles become electrostatically charged. When the object being sprayed is grounded, a potential difference is created, attracting the electrostatically charged particles to deposit on the object's surface, completing the coating curing process. Electrostatic spray guns can evenly adhere paint to the object's surface, avoiding the waste and unevenness that can occur with traditional spraying methods.
[0007] Once the spray bottle and spray gun are connected, it is difficult to stir and mix the liquid inside. Furthermore, if some paints are not stirred for a long time, some colorants or functional additives may accumulate due to density differences, potentially clogging the suction tube and nozzle, making spraying impossible. Therefore, it is crucial to find a way to stir the paint inside the spray bottle while it is already connected to the spray gun. Utility Model Content
[0008] To address the technical problem that existing paint spray guns struggle to re-stir the paint inside the container after installation, this application designs a self-mixing suction-type paint spray gun that uses air bubble movement to agitate the paint inside the container.
[0009] A self-mixing suction-type paint spray gun includes a spray gun and a pot body, wherein the spray gun and the pot body are connected by a threaded seal.
[0010] The kettle body includes an outer air inlet barrel and an inner barrel, the inner barrel being disposed inside the outer air inlet barrel, and the inner barrel and the outer air inlet barrel being integrally sealed and connected.
[0011] An air inlet is provided on the side wall of the air inlet outer barrel, and an air inlet valve is provided at the air inlet;
[0012] The bottom of the inner barrel is provided with submicron-level air pores.
[0013] Preferably, the diameter of the inner barrel is 1-5 mm smaller than that of the outer air inlet barrel.
[0014] Preferably, an air inlet is provided on the side wall of the air inlet outer barrel.
[0015] Preferably, the spray gun is a suction-type spray gun, and the paint inlet of the spray gun is threadedly connected to the top of the inner barrel.
[0016] Preferably, an annular air filter is provided between the inner barrel sidewall and the outer barrel sidewall, and the annular air filter is located below the air inlet.
[0017] Preferably, a cushioning spring pad is also provided in the middle of the bottom of the inner tub.
[0018] Preferably, the air intake outer casing is an aluminum casing.
[0019] Preferably, the inner barrel is made of stainless steel.
[0020] Preferably, the capacity of the inner tub is 1L.
[0021] Preferably, the outer air intake barrel is also provided with a protruding hook.
[0022] The advantages and effects of this application are as follows:
[0023] This application designs a self-mixing suction-type paint spray gun. By setting submicron-level air holes at the bottom of the inner barrel of the spray gun, a negative pressure is created in the inner barrel when the suction-type spray gun is activated. At this time, the submicron-level air holes will draw in gas from the outer barrel, forming bubbles in the inner barrel. As the bubbles rise, they will stir the paint in the inner barrel. No additional power is required, which can make the micron-level materials evenly mixed. At the same time, this application also sets an air inlet hole and an air inlet valve on the side wall of the outer barrel, which can adjust the size of the incoming air bubbles and ensure that the inner barrel is under negative pressure.
[0024] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.
[0025] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0027] Figure 1 An overall structural diagram of a self-mixing suction-type paint spray gun designed for this application;
[0028] Figure 2 A diagram showing the structure of the spray nozzle of a self-mixing suction-type paint spray gun designed for this application;
[0029] Figure label:
[0030] 1. Spray gun; 2. Bottle body; 3. Outer air inlet; 4. Inner barrel; 5. Air inlet; 6. Air inlet valve; 7. Submicron-level air pores; 8. Annular air filter; 9. Buffer spring pad. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.
[0032] It should be understood that the phrase "an embodiment" or "this embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "an embodiment" or "this embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.
[0033] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.
[0034] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.
[0035] In this article, the term "at least one" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, "at least one of A and B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.
[0036] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.
[0037] Example 1
[0038] This embodiment mainly introduces a self-mixing suction-type paint spray gun. Please refer to [link / reference]. Figure 1 Its specific structure includes: a spray gun 1 and a pot body 2, wherein the spray gun 1 and the pot body 2 are connected by a threaded seal;
[0039] Please refer to Figure 2 The kettle body 2 includes an outer air inlet barrel 3 and an inner barrel 4. The inner barrel 4 is disposed inside the outer air inlet barrel 3. The inner barrel 4 and the outer air inlet barrel 3 are integrally sealed and connected. A gap is left between the inner barrel 4 and the outer air inlet barrel 3 as an air inlet channel.
[0040] An air inlet 5 is provided on the side wall of the outer air inlet 3, and an air inlet valve 6 is provided at the air inlet 5; the size of the air inlet is adjusted by adjusting the air inlet through the air inlet valve, thereby adjusting the air intake.
[0041] The bottom of the inner barrel 4 is provided with submicron-level air holes 7. When the spray gun is started, it will create a negative pressure inside the inner barrel 4. Since there are submicron-level air holes 7 at the bottom of the inner barrel 4, the gas between the outer barrel 3 and the inner barrel 4 will enter the inner barrel through the submicron-level air holes 7, forming bubbles. As the bubbles rise, they will stir the material inside the inner barrel 4.
[0042] Furthermore, the diameter of the inner barrel 4 is 1-5 mm smaller than that of the outer air inlet barrel 3 to ensure smooth airflow.
[0043] As an optimal solution, the diameter of the inner barrel is 3mm smaller than that of the outer air inlet barrel.
[0044] Furthermore, an air inlet 5 is provided on the side wall of the outer air inlet barrel 3.
[0045] As an optimal solution, two air inlets are symmetrically arranged on the side wall of the air inlet outer barrel to facilitate airflow exchange.
[0046] Furthermore, the spray gun 1 is a suction-type spray gun 1, and the paint inlet of the spray gun 1 is threadedly connected to the top of the inner barrel 4.
[0047] Furthermore, an annular air filter device 8 is provided between the side wall of the inner barrel 4 and the side wall of the outer air inlet barrel 3. The annular air filter device is located below the air inlet 5. Through the design of the annular filter device, this application can filter the incoming air, ensure the smooth flow of submicron-level air pores, and protect the coating inside the pot body to ensure that no impurities are introduced.
[0048] Furthermore, a buffer spring pad 9 is provided in the middle of the bottom of the inner tub 4 to ensure the stability of the inner tub.
[0049] Furthermore, the outer air inlet 3 is made of aluminum, and the inner air inlet 4 is made of stainless steel, ensuring that the kettle body will not be easily corroded by the coating.
[0050] Furthermore, the inner barrel 4 has a capacity of 1L.
[0051] Furthermore, the air intake outer barrel 3 is also provided with a protruding hook, which is used to tie the traction rope to fix it to the spray gun, so as to ensure a stable connection between the spray gun and the bottle body.
[0052] When the suction-type spray gun is started, it creates a negative pressure in the inner barrel. At this time, submicron-sized air holes will draw in gas from the outer barrel, forming bubbles in the inner barrel. As the bubbles rise, they agitate the coating in the inner barrel. No additional power is required, which can make the micron-sized materials mix evenly. At the same time, this application also provides air inlets and air inlet valves on the side wall of the outer barrel, which can adjust the size of the air bubbles and ensure that the inner barrel is under negative pressure.
[0053] The above description is merely a preferred embodiment of this utility model and does not limit the scope of protection of this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any changes, modifications, substitutions, integrations, and parameter alterations made to these embodiments within the spirit and principles of this utility model, through conventional substitutions or methods that achieve the same function without departing from the principles and spirit of this utility model, fall within the scope of protection of this utility model.
Claims
1. A self-mixing suction-type paint spray gun, characterized in that, It includes a spray gun (1) and a pot body (2), which are connected by a threaded seal. The kettle body (2) includes an outer air inlet barrel (3) and an inner barrel (4). The inner barrel (4) is disposed inside the outer air inlet barrel (3). The inner barrel (4) and the outer air inlet barrel (3) are integrally sealed and connected. An air inlet (5) is provided on the side wall of the air inlet outer barrel (3), and an air inlet valve (6) is provided at the air inlet (5); The bottom of the inner barrel (4) is provided with submicron-level air holes (7).
2. The self-mixing suction-type paint spray gun according to claim 1, characterized in that, The diameter of the inner barrel (4) is 1-5 mm smaller than that of the outer air inlet barrel (3).
3. The self-mixing suction-type paint spray gun according to claim 1, characterized in that, An air inlet (5) is provided on the side wall of the air inlet outer barrel (3).
4. The self-mixing suction-type paint spray gun according to claim 1, characterized in that, The spray gun (1) is a suction-type spray gun (1), and the paint inlet of the spray gun (1) is threadedly connected to the top of the inner barrel (4).
5. A self-mixing suction-type paint spray gun according to any one of claims 1 or 3, characterized in that, An annular air filter device (8) is provided between the side wall of the inner barrel (4) and the side wall of the outer barrel (3), and the annular air filter device is located below the air inlet (5).
6. The self-mixing suction-type paint spray gun according to claim 1, characterized in that, A buffer spring pad (9) is also provided in the middle of the bottom of the inner barrel (4).
7. A self-mixing suction-type paint spray gun according to claim 1, characterized in that, The air intake outer barrel (3) is an aluminum barrel.
8. A self-mixing suction-type paint spray gun according to claim 1, characterized in that, The inner barrel (4) is made of stainless steel.
9. A self-mixing suction-type paint spray gun according to claim 1, characterized in that, The inner barrel (4) has a capacity of 1L.
10. A self-mixing suction-type paint spray gun according to claim 1, characterized in that, The air intake outer barrel (3) is also provided with a protruding hook.